)]}' { "log": [ { "commit": "72494504498ff5ac2f086a83473d4dd1ca490bd3", "tree": "7f1ceab43de3580235f1a56f2ae865901c09e4d7", "parents": [ "cd96891d48a945ca2011fbeceda73813d6286195", "a841f8cef4bb124f0f5563314d0beaf2e1249d72" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 14:59:29 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 14:59:29 2012 -0700" }, "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n sched: Fix the relax_domain_level boot parameter\n sched: Validate assumptions in sched_init_numa()\n sched: Always initialize cpu-power\n sched: Fix domain iteration\n sched/rt: Fix lockdep annotation within find_lock_lowest_rq()\n sched/numa: Load balance between remote nodes\n sched/x86: Calculate booted cores after construction of sibling_mask\n" }, { "commit": "cd96891d48a945ca2011fbeceda73813d6286195", "tree": "c859442b2364adfa4eec29f516ffbe9c316a81bf", "parents": [ "8f53369b753f5f4c7684c2eb0b592152abb1dd00" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Fri Jun 08 13:18:33 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 14:59:10 2012 -0700" }, "message": "sched/fair: fix lots of kernel-doc warnings\n\nFix lots of new kernel-doc warnings in kernel/sched/fair.c:\n\n Warning(kernel/sched/fair.c:3625): No description found for parameter \u0027env\u0027\n Warning(kernel/sched/fair.c:3625): Excess function parameter \u0027sd\u0027 description in \u0027update_sg_lb_stats\u0027\n Warning(kernel/sched/fair.c:3735): No description found for parameter \u0027env\u0027\n Warning(kernel/sched/fair.c:3735): Excess function parameter \u0027sd\u0027 description in \u0027update_sd_pick_busiest\u0027\n Warning(kernel/sched/fair.c:3735): Excess function parameter \u0027this_cpu\u0027 description in \u0027update_sd_pick_busiest\u0027\n .. more warnings\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "106544d81d88069c2df66ebdee42a4ba8fcd25e9", "tree": "9a6233100699c28fafde9eaa1751de7ddc173f58", "parents": [ "03d8f5408235bfd2781142458e0c0671530e74e7", "db0dc75d6403b6663c0eab4c6ccb672eb9b2ed72" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:14:46 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:14:46 2012 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf fixes from Ingo Molnar:\n \"A bit larger than what I\u0027d wish for - half of it is due to hw driver\n updates to Intel Ivy-Bridge which info got recently released,\n cycles:pp should work there now too, amongst other things. (but we\n are generally making exceptions for hardware enablement of this type.)\n\n There are also callchain fixes in it - responding to mostly\n theoretical (but valid) concerns. The tooling side sports perf.data\n endianness/portability fixes which did not make it for the merge\n window - and various other fixes as well.\"\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)\n perf/x86: Check user address explicitly in copy_from_user_nmi()\n perf/x86: Check if user fp is valid\n perf: Limit callchains to 127\n perf/x86: Allow multiple stacks\n perf/x86: Update SNB PEBS constraints\n perf/x86: Enable/Add IvyBridge hardware support\n perf/x86: Implement cycles:p for SNB/IVB\n perf/x86: Fix Intel shared extra MSR allocation\n x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix\n perf: Remove duplicate invocation on perf_event_for_each\n perf uprobes: Remove unnecessary check before strlist__delete\n perf symbols: Check for valid dso before creating map\n perf evsel: Fix 32 bit values endianity swap for sample_id_all header\n perf session: Handle endianity swap on sample_id_all header data\n perf symbols: Handle different endians properly during symbol load\n perf evlist: Pass third argument to ioctl explicitly\n perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP\n perf tools: Make --version show kernel version instead of pull req tag\n perf tools: Check if callchain is corrupted\n perf callchain: Make callchain cursors TLS\n ...\n" }, { "commit": "b1e25f41094dfe0b9653c926d3c02a35c2eb249c", "tree": "6ccbd499bd62f8ac46ce4335803c6ab4fad57ae4", "parents": [ "857505fae884fae32e700d4b019b5f652ebf0d3b", "fad0c66c4bb836d57a5f125ecd38bed653ca863a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:11:33 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 08 09:11:33 2012 -0700" }, "message": "Merge branch \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull leap second timer fix from Thomas Gleixner.\n\n* \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n timekeeping: Fix CLOCK_MONOTONIC inconsistency during leapsecond\n" }, { "commit": "48d212a2eecaca2e1875925837ad27b2f43f48a3", "tree": "fbd83c7b15856971f6d7297e1d23dc862ba2989c", "parents": [ "46edaedaf3842164281d0f86c41bc152f4b4d32e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 17:54:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 17:54:07 2012 -0700" }, "message": "Revert \"mm: correctly synchronize rss-counters at exit/exec\"\n\nThis reverts commit 40af1bbdca47e5c8a2044039bb78ca8fd8b20f94.\n\nIt\u0027s horribly and utterly broken for at least the following reasons:\n\n - calling sync_mm_rss() from mmput() is fundamentally wrong, because\n there\u0027s absolutely no reason to believe that the task that does the\n mmput() always does it on its own VM. Example: fork, ptrace, /proc -\n you name it.\n\n - calling it *after* having done mmdrop() on it is doubly insane, since\n the mm struct may well be gone now.\n\n - testing mm against NULL before you call it is insane too, since a\nNULL mm there would have caused oopses long before.\n\n.. and those are just the three bugs I found before I decided to give up\nlooking for me and revert it asap. I should have caught it before I\neven took it, but I trusted Andrew too much.\n\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "40af1bbdca47e5c8a2044039bb78ca8fd8b20f94", "tree": "70b5a21579f8b0137c09e54d523246d84be93430", "parents": [ "39caa0916ef27cf1da5026eb708a2b8413156f75" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Thu Jun 07 14:21:14 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "mm: correctly synchronize rss-counters at exit/exec\n\nmm-\u003erss_stat counters have per-task delta: task-\u003erss_stat. Before\nchanging task-\u003emm pointer the kernel must flush this delta with\nsync_mm_rss().\n\ndo_exit() already calls sync_mm_rss() to flush the rss-counters before\ncommitting the rss statistics into task-\u003esignal-\u003emaxrss, taskstats,\naudit and other stuff. Unfortunately the kernel does this before\ncalling mm_release(), which can call put_user() for processing\ntask-\u003eclear_child_tid. So at this point we can trigger page-faults and\ntask-\u003erss_stat becomes non-zero again. As a result mm-\u003erss_stat becomes\ninconsistent and check_mm() will print something like this:\n\n| BUG: Bad rss-counter state mm:ffff88020813c380 idx:1 val:-1\n| BUG: Bad rss-counter state mm:ffff88020813c380 idx:2 val:1\n\nThis patch moves sync_mm_rss() into mm_release(), and moves mm_release()\nout of do_exit() and calls it earlier. After mm_release() there should\nbe no pagefaults.\n\n[akpm@linux-foundation.org: tweak comment]\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nReported-by: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: \u003cstable@vger.kernel.org\u003e\t\t[3.4.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "736f24d5e59d699c6e300c5da7e3bb882eddda67", "tree": "9f703433c67763623bacb6ec1aab5a69d33903ac", "parents": [ "300f786b2683f8bb1ec0afb6e1851183a479c86d" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Thu Jun 07 14:21:12 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: drop VMA flags test on PR_SET_MM_ stack data assignment\n\nIn commit b76437579d13 (\"procfs: mark thread stack correctly in\nproc/\u003cpid\u003e/maps\") the stack allocated via clone() is marked in\n/proc/\u003cpid\u003e/maps as [stack:%d] thus it might be out of the former\nmm-\u003estart_stack/end_stack values (and even has some custom VMA flags\nset).\n\nSo to be able to restore mm-\u003estart_stack/end_stack drop vma flags test,\nbut still require the underlying VMA to exist.\n\nAs always note this feature is under CONFIG_CHECKPOINT_RESTORE and\nrequires CAP_SYS_RESOURCE to be granted.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "300f786b2683f8bb1ec0afb6e1851183a479c86d", "tree": "156c63abe6caaf885e439af30b7d883a33ba501d", "parents": [ "1ad75b9e16280ca4e2501a629a225319cf2eef2e" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu Jun 07 14:21:12 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: add ability to get clear_tid_address\n\nZero is written at clear_tid_address when the process exits. This\nfunctionality is used by pthread_join().\n\nWe already have sys_set_tid_address() to change this address for the\ncurrent task but there is no way to obtain it from user space.\n\nWithout the ability to find this address and dump it we can\u0027t restore\npthread\u0027ed apps which call pthread_join() once they have been restored.\n\nThis patch introduces the PR_GET_TID_ADDRESS prctl option which allows\nthe current process to obtain own clear_tid_address.\n\nThis feature is available iif CONFIG_CHECKPOINT_RESTORE is set.\n\n[akpm@linux-foundation.org: fix prctl numbering]\nSigned-off-by: Andrew Vagin \u003cavagin@openvz.org\u003e\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Pedro Alves \u003cpalves@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1ad75b9e16280ca4e2501a629a225319cf2eef2e", "tree": "360b86785011959e68a4d87cb32bd92120370990", "parents": [ "bafb282df29c1524b1617019adebd6d0c3eb7a47" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu Jun 07 14:21:11 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: add minimal address test to PR_SET_MM\n\nMake sure the address being set is greater than mmap_min_addr (as\nsuggested by Kees Cook).\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bafb282df29c1524b1617019adebd6d0c3eb7a47", "tree": "f0b9efa850b4b298ce484eead5c8d9de87dde3e9", "parents": [ "6305902c2f871fd6db60af367bd7120fa977fa74" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Thu Jun 07 14:21:11 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 07 14:43:55 2012 -0700" }, "message": "c/r: prctl: update prctl_set_mm_exe_file() after mm-\u003enum_exe_file_vmas removal\n\nA fix for commit b32dfe377102 (\"c/r: prctl: add ability to set new\nmm_struct::exe_file\").\n\nAfter removing mm-\u003enum_exe_file_vmas kernel keeps mm-\u003eexe_file until\nfinal mmput(), it never becomes NULL while task is alive.\n\nWe can check for other mapped files in mm instead of checking\nmm-\u003enum_exe_file_vmas, and mark mm with flag MMF_EXE_FILE_CHANGED in\norder to forbid second changing of mm-\u003eexe_file.\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nReviewed-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a841f8cef4bb124f0f5563314d0beaf2e1249d72", "tree": "b846a9065f021313027f1bbc489743c43ea5869e", "parents": [ "d039ac60800fe8ed8522ec3b9ca796aaf748c18b" ], "author": { "name": "Dimitri Sivanich", "email": "sivanich@sgi.com", "time": "Tue Jun 05 13:44:36 2012 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 17:07:41 2012 +0200" }, "message": "sched: Fix the relax_domain_level boot parameter\n\nIt does not get processed because sched_domain_level_max is 0 at the\ntime that setup_relax_domain_level() is run.\n\nSimply accept the value as it is, as we don\u0027t know the value of\nsched_domain_level_max until sched domain construction is completed.\n\nFix sched_relax_domain_level in cpuset. The build_sched_domain() routine calls\nthe set_domain_attribute() routine prior to setting the sd-\u003elevel, however,\nthe set_domain_attribute() routine relies on the sd-\u003elevel to decide whether\nidle load balancing will be off/on.\n\nSigned-off-by: Dimitri Sivanich \u003csivanich@sgi.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120605184436.GA15668@sgi.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "d039ac60800fe8ed8522ec3b9ca796aaf748c18b", "tree": "b00845d9466d1abed5dbfda1e3c68713333460bc", "parents": [ "c3decf0dfbc95736b7c0ab68fa4e5854c4734da9" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 31 21:20:16 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:30 2012 +0200" }, "message": "sched: Validate assumptions in sched_init_numa()\n\nAdd some code to validate assumptions we\u0027re making and output\nwarnings if they are not.\n\nIf this trigger we want to know about it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alex Shi \u003clkml.alex@gmail.com\u003e\nLink: http://lkml.kernel.org/n/tip-6uc3wk5s9udxtdl9cnku0vtt@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "c3decf0dfbc95736b7c0ab68fa4e5854c4734da9", "tree": "c21748af2b4c7e4b738cefd2076c1ccc6ed2c664", "parents": [ "c1174876874dcf8986806e4dad3d7d07af20b439" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 31 12:05:32 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:27 2012 +0200" }, "message": "sched: Always initialize cpu-power\n\nOften when we run into mis-shapen topologies the balance iteration\nfails to update the cpu power properly and we\u0027ll end up in /0 traps.\n\nAlways initialize the cpu-power to a semi-sane value so that we can\nat least boot the machine, even if the load-balancer might not\nfunction correctly.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-3lbhyj25sr169ha7z3qht5na@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "c1174876874dcf8986806e4dad3d7d07af20b439", "tree": "7e2ea14ba9421bddd63e1810716f1929c753e28b", "parents": [ "7f1b43936f0ecad14770634c021cf4a929aec74d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 31 14:47:33 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:26 2012 +0200" }, "message": "sched: Fix domain iteration\n\nWeird topologies can lead to asymmetric domain setups. This needs\nfurther consideration since these setups are typically non-minimal\ntoo.\n\nFor now, make it work by adding an extra mask selecting which CPUs\nare allowed to iterate up.\n\nThe topology that triggered it is the one from David Rientjes:\n\n\t10 20 20 30\n\t20 10 20 20\n\t20 20 10 20\n\t30 20 20 10\n\nresulting in boxes that wouldn\u0027t even boot.\n\nReported-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-3p86l9cuaqnxz7uxsojmz5rm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "7f1b43936f0ecad14770634c021cf4a929aec74d", "tree": "ea200fcf70af41839e049c59a2dc922407e7495b", "parents": [ "10717dcde10d09f9fcee53a12a4236af1a82b484" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 17 21:19:46 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:26 2012 +0200" }, "message": "sched/rt: Fix lockdep annotation within find_lock_lowest_rq()\n\nRoland Dreier reported spurious, hard to trigger lockdep warnings\nwithin the scheduler - without any real lockup.\n\nThis bit gives us the right clue:\n\n\u003e [89945.640512] [\u003cffffffff8103fa1a\u003e] double_lock_balance+0x5a/0x90\n\u003e [89945.640568] [\u003cffffffff8104c546\u003e] push_rt_task+0xc6/0x290\n\nif you look at that code you\u0027ll find the double_lock_balance() in\nquestion is the one in find_lock_lowest_rq() [yay for inlining].\n\nNow find_lock_lowest_rq() has a bug.. it fails to use\ndouble_unlock_balance() in one exit path, if this results in a retry in\npush_rt_task() we\u0027ll call double_lock_balance() again, at which point\nwe\u0027ll run into said lockdep confusion.\n\nReported-by: Roland Dreier \u003croland@kernel.org\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1337282386.4281.77.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "10717dcde10d09f9fcee53a12a4236af1a82b484", "tree": "ef7fa575d2bec5631201cd72c5764f042650e382", "parents": [ "ceb1cbac8eda66cf0f889def226b4e82f8ff857b" ], "author": { "name": "Alex Shi", "email": "alex.shi@intel.com", "time": "Wed Jun 06 14:52:51 2012 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 16:52:25 2012 +0200" }, "message": "sched/numa: Load balance between remote nodes\n\nCommit cb83b629b (\"sched/numa: Rewrite the CONFIG_NUMA sched\ndomain support\") removed the NODE sched domain and started checking\nif the node distance in SLIT table is farther than REMOTE_DISTANCE,\nif so, it will lose the load balance chance at exec/fork/wake_affine\npoints.\n\nBut actually, even the node distance is farther than REMOTE_DISTANCE.\n\nModern CPUs also has QPI like connections, which ensures that memory\naccess is not too slow between nodes. So the above change in behavior\non NUMA machine causes a performance regression on various benchmarks:\nhackbench, tbench, netperf, oltp, etc.\n\nThis patch will recover the scheduler behavior to old mode on all my\nIntel platforms: NHM EP/EX, WSM EP, SNB EP/EP4S, and thus fixes the\nperfromance regressions. (all of them just have 2 kinds distance, 10, 21)\n\nSigned-off-by: Alex Shi \u003calex.shi@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1338965571-9812-1-git-send-email-alex.shi@intel.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "02e03040a3fda866e5d1018734bd5b5ede997043", "tree": "5bb2b9ea8c25504cd45a79d576839bafe6610dd0", "parents": [ "f9ba7179ce91fb77b2adf6eaab3676ab3a1f5a15", "cb7225feec627e91d598198996429e9ee6804f8d" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 08:40:10 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed Jun 06 08:46:33 2012 +0200" }, "message": "Merge tag \u0027perf-urgent-for-mingo\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent\n\nPull perf fixes from Arnaldo Carvalho de Melo:\n\n * Endianness fixes from Jiri Olsa\n\n * Fixes for make perf tarball\n\n * Fix for DSO name in perf script callchains, from David Ahern\n\n * Segfault fixes for perf top --callchain, from Namhyung Kim\n\n * Minor function result fixes from Srikar Dronamraju\n\n * Add missing 3rd ioctl parameter, from Namhyung Kim\n\n * Fix pager usage in minimal embedded systems, from Avik Sil\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "365f0e173f44aad979c464eb8250f6138a9911ef", "tree": "cec00f56b5ab382df2701e06dc02bdfd04dbd628", "parents": [ "690efa08e268a36df170bee79df93a9649c3f217", "fa980ca87d15bb8a1317853f257a505990f3ffde" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 11:54:12 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 11:54:12 2012 -0700" }, "message": "Merge branch \u0027for-3.5-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup\n\nPull cgroup fix from Tejun Heo:\n \"This fixes the possible premature superblock release on umount bug\n mentioned during v3.5-rc1 pull request.\n\n Originally, cgroup dentry destruction path assumed that cgroup dentry\n didn\u0027t have any reference left after cgroup removal thus put super\n during dentry removal. Now that there can be lingering dentry\n references, this led to super being put with live dentries. This\n patch fixes the problem by putting super ref on dentry release instead\n of removal.\"\n\n* \u0027for-3.5-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:\n cgroup: superblock can\u0027t be released with active dentries\n" }, { "commit": "0b3e9f3f21c42d064f5f4088df4088e3d55755eb", "tree": "b153a9346bf21a64a9e5c5f3f440f00b591fd269", "parents": [ "99becf1328d8d71dd6f4480e3591d7dcdb389e57", "6a4c96eef42f835734a82c6b512abf9881b7c55d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 09:47:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 05 09:47:15 2012 -0700" }, "message": "Merge branch \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler fixes from Ingo Molnar.\n\n* \u0027sched-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n sched: Remove NULL assignment of dattr_cur\n sched: Remove the last NULL entry from sched_feat_names\n sched: Make sched_feat_names const\n sched/rt: Fix SCHED_RR across cgroups\n sched: Move nr_cpus_allowed out of \u0027struct sched_rt_entity\u0027\n sched: Make sure to not re-read variables after validation\n sched: Fix SD_OVERLAP\n sched: Don\u0027t try allocating memory from offline nodes\n sched/nohz: Fix rq-\u003ecpu_load calculations some more\n sched/x86: Use cpu_llc_shared_mask(cpu) for coregroup_mask\n" }, { "commit": "fad0c66c4bb836d57a5f125ecd38bed653ca863a", "tree": "f35b5081b03f0f090c13a0fa074ff7cb3b1f60c1", "parents": [ "9171c670b4915e30360c2aed530b8377fbbcc852" ], "author": { "name": "John Stultz", "email": "john.stultz@linaro.org", "time": "Wed May 30 10:54:57 2012 -0700" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Jun 04 21:46:29 2012 +0200" }, "message": "timekeeping: Fix CLOCK_MONOTONIC inconsistency during leapsecond\n\nCommit 6b43ae8a61 (ntp: Fix leap-second hrtimer livelock) broke the\nleapsecond update of CLOCK_MONOTONIC. The missing leapsecond update to\nwall_to_monotonic causes discontinuities in CLOCK_MONOTONIC.\n\nAdjust wall_to_monotonic when NTP inserted a leapsecond.\n\nReported-by: Richard Cochran \u003crichardcochran@gmail.com\u003e\nSigned-off-by: John Stultz \u003cjohn.stultz@linaro.org\u003e\nTested-by: Richard Cochran \u003crichardcochran@gmail.com\u003e\nCc: stable@kernel.org\nLink: http://lkml.kernel.org/r/1338400497-12420-1-git-send-email-john.stultz@linaro.org\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "9171c670b4915e30360c2aed530b8377fbbcc852", "tree": "c583edd07ecd479f902b90c46ab37cf23b4fe28d", "parents": [ "c22072bdf053b115a1126658100967dda00b5ecf", "818b0f3bfb236ae66cac3ff38e86b9e47f24b7aa", "4a70d2d9909b43ed88043b98cabe2c7fbd563021" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:36:51 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:36:51 2012 -0700" }, "message": "Merge branches \u0027irq-urgent-for-linus\u0027 and \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull irq and smpboot updates from Thomas Gleixner:\n \"Just cleanup patches with no functional change and a fix for suspend\n issues.\"\n\n* \u0027irq-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n genirq: Introduce irq_do_set_affinity() to reduce duplicated code\n genirq: Add IRQS_PENDING for nested and simple irq\n\n* \u0027smp-hotplug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n smpboot, idle: Fix comment mismatch over idle_threads_init()\n smpboot, idle: Optimize calls to smp_processor_id() in idle_threads_init()\n" }, { "commit": "c22072bdf053b115a1126658100967dda00b5ecf", "tree": "21520119dbbfce237a5005e9840105e86944c9cc", "parents": [ "0640113be25d283e0ff77a9f041e1242182387f0", "62cf20b32aee4ae889a2eb40fd41c0eab73de970" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:25:31 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 04 11:25:31 2012 -0700" }, "message": "Merge branch \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull timer updates from Thomas Gleixner:\n \"The clocksource driver is pure hardware enablement and the skew option\n is default off, well tested and non dangerous.\"\n\n* \u0027timers-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n tick: Move skew_tick option into the HIGH_RES_TIMER section\n clocksource: em_sti: Add DT support\n clocksource: em_sti: Emma Mobile STI driver\n clockevents: Make clockevents_config() a global symbol\n tick: Add tick skew boot option\n" }, { "commit": "86c47b70f62a7072d441ba212aab33c2f82627c2", "tree": "d03988bd2226966352bb7f3c2e82ff545353d2c4", "parents": [ "1193755ac6328ad240ba987e6ec41d5e8baf0680", "44fbbb3dc687c9709a6f2236197316e5c79ab1eb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 11:53:44 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 11:53:44 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal\n\nPull third pile of signal handling patches from Al Viro:\n \"This time it\u0027s mostly helpers and conversions to them; there\u0027s a lot\n of stuff remaining in the tree, but that\u0027ll either go in -rc2\n (isolated bug fixes, ideally via arch maintainers\u0027 trees) or will sit\n there until the next cycle.\"\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:\n x86: get rid of calling do_notify_resume() when returning to kernel mode\n blackfin: check __get_user() return value\n whack-a-mole with TIF_FREEZE\n FRV: Optimise the system call exit path in entry.S [ver #2]\n FRV: Shrink TIF_WORK_MASK [ver #2]\n FRV: Prevent syscall exit tracing and notify_resume at end of kernel exceptions\n new helper: signal_delivered()\n powerpc: get rid of restore_sigmask()\n most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set\n set_restore_sigmask() is never called without SIGPENDING (and never should be)\n TIF_RESTORE_SIGMASK can be set only when TIF_SIGPENDING is set\n don\u0027t call try_to_freeze() from do_signal()\n pull clearing RESTORE_SIGMASK into block_sigmask()\n sh64: failure to build sigframe !\u003d signal without handler\n openrisc: tracehook_signal_handler() is supposed to be called on success\n new helper: sigmask_to_save()\n new helper: restore_saved_sigmask()\n new helpers: {clear,test,test_and_clear}_restore_sigmask()\n HAVE_RESTORE_SIGMASK is defined on all architectures now\n" }, { "commit": "1193755ac6328ad240ba987e6ec41d5e8baf0680", "tree": "40bf847d7e3ebaa57b107151d14e6cd1d280cc6d", "parents": [ "4edebed86690eb8db9af3ab85baf4a34e73266cc", "0ef97dcfce4179a2eba046b855ee2f91d6f1b414" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 10:34:35 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 01 10:34:35 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs\n\nPull vfs changes from Al Viro.\n \"A lot of misc stuff. The obvious groups:\n * Miklos\u0027 atomic_open series; kills the damn abuse of\n -\u003ed_revalidate() by NFS, which was the major stumbling block for\n all work in that area.\n * ripping security_file_mmap() and dealing with deadlocks in the\n area; sanitizing the neighborhood of vm_mmap()/vm_munmap() in\n general.\n * -\u003eencode_fh() switched to saner API; insane fake dentry in\n mm/cleancache.c gone.\n * assorted annotations in fs (endianness, __user)\n * parts of Artem\u0027s -\u003es_dirty work (jff2 and reiserfs parts)\n * -\u003eupdate_time() work from Josef.\n * other bits and pieces all over the place.\n\n Normally it would\u0027ve been in two or three pull requests, but\n signal.git stuff had eaten a lot of time during this cycle ;-/\"\n\nFix up trivial conflicts in Documentation/filesystems/vfs.txt (the\n\u0027truncate_range\u0027 inode method was removed by the VM changes, the VFS\nupdate adds an \u0027update_time()\u0027 method), and in fs/btrfs/ulist.[ch] (due\nto sparse fix added twice, with other changes nearby).\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (95 commits)\n nfs: don\u0027t open in -\u003ed_revalidate\n vfs: retry last component if opening stale dentry\n vfs: nameidata_to_filp(): don\u0027t throw away file on error\n vfs: nameidata_to_filp(): inline __dentry_open()\n vfs: do_dentry_open(): don\u0027t put filp\n vfs: split __dentry_open()\n vfs: do_last() common post lookup\n vfs: do_last(): add audit_inode before open\n vfs: do_last(): only return EISDIR for O_CREAT\n vfs: do_last(): check LOOKUP_DIRECTORY\n vfs: do_last(): make ENOENT exit RCU safe\n vfs: make follow_link check RCU safe\n vfs: do_last(): use inode variable\n vfs: do_last(): inline walk_component()\n vfs: do_last(): make exit RCU safe\n vfs: split do_lookup()\n Btrfs: move over to use -\u003eupdate_time\n fs: introduce inode operation -\u003eupdate_time\n reiserfs: get rid of resierfs_sync_super\n reiserfs: mark the superblock as dirty a bit later\n ...\n" }, { "commit": "efee984c27b67e3ebef40410f35671997441b57c", "tree": "53457dba2338f853d34e1754e7f7f960e4a29482", "parents": [ "17440f171e28e86cc21a4c8fd1fa3c561503f80e" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Apr 28 02:04:15 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:52 2012 -0400" }, "message": "new helper: signal_delivered()\n\nDoes block_sigmask() + tracehook_signal_handler(); called when\nsigframe has been successfully built. All architectures converted\nto it; block_sigmask() itself is gone now (merged into this one).\n\nI\u0027m still not too happy with the signature, but that\u0027s a separate\nstory (IMO we need a structure that would contain signal number +\nsiginfo + k_sigaction, so that get_signal_to_deliver() would fill one,\nsignal_delivered(), handle_signal() and probably setup...frame() -\ntake one).\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "77097ae503b170120ab66dd1d547f8577193f91f", "tree": "bee5b2e8d91b9ec8ab74c58cbec1796c7bacc2e5", "parents": [ "edd63a2763bdae0daa4f0a4d4c5d61d1154352a5" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Apr 27 13:58:59 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:51 2012 -0400" }, "message": "most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set\n\nOnly 3 out of 63 do not. Renamed the current variant to __set_current_blocked(),\nadded set_current_blocked() that will exclude unblockable signals, switched\nopen-coded instances to it.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a610d6e672d6d3723e8da257ad4a8a288a8f2f89", "tree": "2fac6ce7f72756771f4f87583205cc402589dcad", "parents": [ "5754f412a3f107cbcd93ee125bef296f2a07539b" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon May 21 23:42:15 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:49 2012 -0400" }, "message": "pull clearing RESTORE_SIGMASK into block_sigmask()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "754421c8cab1a568be844a7069fe04c1cf6391b8", "tree": "71fa1f54e664ff45289fccfa946747a18e20727f", "parents": [ "fb21affa49204acd409328415b49bfe90136653c" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Apr 26 18:31:00 2012 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jun 01 12:58:46 2012 -0400" }, "message": "HAVE_RESTORE_SIGMASK is defined on all architectures now\n\nEveryone either defines it in arch thread_info.h or has TIF_RESTORE_SIGMASK\nand picks default set_restore_sigmask() in linux/thread_info.h. Kill the\nifdefs, slap #error in linux/thread_info.h to catch breakage when new ones\nget merged.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "fb21affa49204acd409328415b49bfe90136653c", "tree": "3535dbe0c0aad049a38cadfcffe78409397a1b32", "parents": [ "a00b6151a2ae4c52576c35d3998e144a993d50b8", "f23ca335462e3c84f13270b9e65f83936068ec2c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:47:30 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:47:30 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal\n\nPull second pile of signal handling patches from Al Viro:\n \"This one is just task_work_add() series + remaining prereqs for it.\n\n There probably will be another pull request from that tree this\n cycle - at least for helpers, to get them out of the way for per-arch\n fixes remaining in the tree.\"\n\nFix trivial conflict in kernel/irq/manage.c: the merge of Andrew\u0027s pile\nhad brought in commit 97fd75b7b8e0 (\"kernel/irq/manage.c: use the\npr_foo() infrastructure to prefix printks\") which changed one of the\npr_err() calls that this merge moves around.\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:\n keys: kill task_struct-\u003ereplacement_session_keyring\n keys: kill the dummy key_replace_session_keyring()\n keys: change keyctl_session_to_parent() to use task_work_add()\n genirq: reimplement exit_irq_thread() hook via task_work_add()\n task_work_add: generic process-context callbacks\n avr32: missed _TIF_NOTIFY_RESUME on one of do_notify_resume callers\n parisc: need to check NOTIFY_RESUME when exiting from syscall\n move key_repace_session_keyring() into tracehook_notify_resume()\n TIF_NOTIFY_RESUME is defined on all targets now\n" }, { "commit": "08615d7d85e5aa02c05bf6c4dde87d940e7f85f6", "tree": "18906149d313d25914160aca21cedf54b3a7e818", "parents": [ "9fdadb2cbaf4b482dfd6086e8bd3d2db071a1702", "0a4dd35c67b144d8ef9432120105f1aab9293ee9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:10:18 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 18:10:18 2012 -0700" }, "message": "Merge branch \u0027akpm\u0027 (Andrew\u0027s patch-bomb)\n\nMerge misc patches from Andrew Morton:\n\n - the \"misc\" tree - stuff from all over the map\n\n - checkpatch updates\n\n - fatfs\n\n - kmod changes\n\n - procfs\n\n - cpumask\n\n - UML\n\n - kexec\n\n - mqueue\n\n - rapidio\n\n - pidns\n\n - some checkpoint-restore feature work. Reluctantly. Most of it\n delayed a release. I\u0027m still rather worried that we don\u0027t have a\n clear roadmap to completion for this work.\n\n* emailed from Andrew Morton \u003cakpm@linux-foundation.org\u003e: (78 patches)\n kconfig: update compression algorithm info\n c/r: prctl: add ability to set new mm_struct::exe_file\n c/r: prctl: extend PR_SET_MM to set up more mm_struct entries\n c/r: procfs: add arg_start/end, env_start/end and exit_code members to /proc/$pid/stat\n syscalls, x86: add __NR_kcmp syscall\n fs, proc: introduce /proc/\u003cpid\u003e/task/\u003ctid\u003e/children entry\n sysctl: make kernel.ns_last_pid control dependent on CHECKPOINT_RESTORE\n aio/vfs: cleanup of rw_copy_check_uvector() and compat_rw_copy_check_uvector()\n eventfd: change int to __u64 in eventfd_signal()\n fs/nls: add Apple NLS\n pidns: make killed children autoreap\n pidns: use task_active_pid_ns in do_notify_parent\n rapidio/tsi721: add DMA engine support\n rapidio: add DMA engine support for RIO data transfers\n ipc/mqueue: add rbtree node caching support\n tools/selftests: add mq_perf_tests\n ipc/mqueue: strengthen checks on mqueue creation\n ipc/mqueue: correct mq_attr_ok test\n ipc/mqueue: improve performance of send/recv\n selftests: add mq_open_tests\n ...\n" }, { "commit": "b32dfe377102ce668775f8b6b1461f7ad428f8b6", "tree": "f89be6bd34eb757c471f3ca506e0ce92224f9bc5", "parents": [ "fe8c7f5cbf91124987106faa3bdf0c8b955c4cf7" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu May 31 16:26:46 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "c/r: prctl: add ability to set new mm_struct::exe_file\n\nWhen we do restore we would like to have a way to setup a former\nmm_struct::exe_file so that /proc/pid/exe would point to the original\nexecutable file a process had at checkpoint time.\n\nFor this the PR_SET_MM_EXE_FILE code is introduced. This option takes a\nfile descriptor which will be set as a source for new /proc/$pid/exe\nsymlink.\n\nNote it allows to change /proc/$pid/exe if there are no VM_EXECUTABLE\nvmas present for current process, simply because this feature is a special\nto C/R and mm::num_exe_file_vmas become meaningless after that.\n\nTo minimize the amount of transition the /proc/pid/exe symlink might have,\nthis feature is implemented in one-shot manner. Thus once changed the\nsymlink can\u0027t be changed again. This should help sysadmins to monitor the\nsymlinks over all process running in a system.\n\nIn particular one could make a snapshot of processes and ring alarm if\nthere unexpected changes of /proc/pid/exe\u0027s in a system.\n\nNote -- this feature is available iif CONFIG_CHECKPOINT_RESTORE is set and\nthe caller must have CAP_SYS_RESOURCE capability granted, otherwise the\nrequest to change symlink will be rejected.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nReviewed-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fe8c7f5cbf91124987106faa3bdf0c8b955c4cf7", "tree": "3ddb0013465d7cd09ef6bc2fab18cb59055a309b", "parents": [ "5b172087f99189416d5f47fd7ab5e6fb762a9ba3" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu May 31 16:26:45 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "c/r: prctl: extend PR_SET_MM to set up more mm_struct entries\n\nDuring checkpoint we dump whole process memory to a file and the dump\nincludes process stack memory. But among stack data itself, the stack\ncarries additional parameters such as command line arguments, environment\ndata and auxiliary vector.\n\nSo when we do restore procedure and once we\u0027ve restored stack data itself\nwe need to setup mm_struct::arg_start/end, env_start/end, so restored\nprocess would be able to find command line arguments and environment data\nit had at checkpoint time. The same applies to auxiliary vector.\n\nFor this reason additional PR_SET_MM_(ARG_START | ARG_END | ENV_START |\nENV_END | AUXV) codes are introduced.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: Kees Cook \u003ckeescook@chromium.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Andrew Vagin \u003cavagin@openvz.org\u003e\nCc: Serge Hallyn \u003cserge.hallyn@canonical.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Vasiliy Kulikov \u003csegoon@openwall.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d97b46a64674a267bc41c9e16132ee2a98c3347d", "tree": "316f77d212c84aef226684eb05d5d33f40743ac9", "parents": [ "818411616baf46ceba0cff6f05af3a9b294734f7" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Thu May 31 16:26:44 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "syscalls, x86: add __NR_kcmp syscall\n\nWhile doing the checkpoint-restore in the user space one need to determine\nwhether various kernel objects (like mm_struct-s of file_struct-s) are\nshared between tasks and restore this state.\n\nThe 2nd step can be solved by using appropriate CLONE_ flags and the\nunshare syscall, while there\u0027s currently no ways for solving the 1st one.\n\nOne of the ways for checking whether two tasks share e.g. mm_struct is to\nprovide some mm_struct ID of a task to its proc file, but showing such\ninfo considered to be not that good for security reasons.\n\nThus after some debates we end up in conclusion that using that named\n\u0027comparison\u0027 syscall might be the best candidate. So here is it --\n__NR_kcmp.\n\nIt takes up to 5 arguments - the pids of the two tasks (which\ncharacteristics should be compared), the comparison type and (in case of\ncomparison of files) two file descriptors.\n\nLookups for pids are done in the caller\u0027s PID namespace only.\n\nAt moment only x86 is supported and tested.\n\n[akpm@linux-foundation.org: fix up selftests, warnings]\n[akpm@linux-foundation.org: include errno.h]\n[akpm@linux-foundation.org: tweak comment text]\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Andrey Vagin \u003cavagin@openvz.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Glauber Costa \u003cglommer@parallels.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: Pekka Enberg \u003cpenberg@kernel.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Vasiliy Kulikov \u003csegoon@openwall.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Valdis.Kletnieks@vt.edu\nCc: Michal Marek \u003cmmarek@suse.cz\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "98ed57eef9f67dfe541be0bca34660ffc88365b2", "tree": "1dee418c15205a31a811597587bdec9d1bc0cdd2", "parents": [ "ac34ebb3a67e699edcb5ac72f19d31679369dfaa" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Thu May 31 16:26:42 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "sysctl: make kernel.ns_last_pid control dependent on CHECKPOINT_RESTORE\n\nFor those who doesn\u0027t need C/R functionality there is no need to control\nlast pid, ie the pid for the next fork() call.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "00c10bc13cdb58447d6bb2a003afad7bd60f5a5f", "tree": "64058d4c643706035e2327adecd8be18b852dfb6", "parents": [ "3208450488ae724196f1efffc457e4265957c04e" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu May 31 16:26:40 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:32 2012 -0700" }, "message": "pidns: make killed children autoreap\n\nForce SIGCHLD handling to SIG_IGN so that signals are not generated and so\nthat the children autoreap. This increases the parallelize and in general\nthe speed of network namespace shutdown.\n\nNote self reaping childrean can exist past zap_pid_ns_processess but they\nwill all be reaped before we allow the pid namespace init task with pid \u003d\u003d\n1 to be reaped.\n\n[akpm@linux-foundation.org: checkpatch fixes]\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3208450488ae724196f1efffc457e4265957c04e", "tree": "bfad76a020bf5635e6529b3105f6ea4b521d7973", "parents": [ "9eaa3d9bb2c4da99b1161cfcc63f3e77d9d3d156" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu May 31 16:26:39 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:31 2012 -0700" }, "message": "pidns: use task_active_pid_ns in do_notify_parent\n\nUsing task_active_pid_ns is more robust because it works even after we\nhave called exit_namespaces. This change allows us to have parent\nprocesses that are zombies. Normally a zombie parent processes is crazy\nand the last thing you would want to have but in the case of not letting\nthe init process of a pid namespace be reaped until all of it\u0027s children\nare dead and reaped a zombie parent process is exactly what we want.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Pavel Emelyanov \u003cxemul@parallels.com\u003e\nCc: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Louis Rilling \u003clouis.rilling@kerlabs.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e4cc2f873ad0833aa5c4aca56bebe15b9603a1e7", "tree": "f649dffdeb819f64434362f93cb42a7506866751", "parents": [ "2c922c51e6924298f8271d75732964f1ffdecaf2" ], "author": { "name": "Anton Vorontsov", "email": "anton.vorontsov@linaro.org", "time": "Thu May 31 16:26:26 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:30 2012 -0700" }, "message": "kernel/cpu.c: document clear_tasks_mm_cpumask()\n\nAdd more comments on clear_tasks_mm_cpumask, plus adds a runtime check:\nthe function is only suitable for offlined CPUs, and if called\ninappropriately, the kernel should scream aloud.\n\n[akpm@linux-foundation.org: tweak comment: s/walks up/walks/, use 80 cols]\nSuggested-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSuggested-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cb79295e20a8088a2fd6a9b3cb5f2d889ec36b4d", "tree": "e749be4ebd059d9dd1ff109c1cecb7b63109d2e0", "parents": [ "f7505d64f2db5da2d7d94873ddf2cd2524847061" ], "author": { "name": "Anton Vorontsov", "email": "anton.vorontsov@linaro.org", "time": "Thu May 31 16:26:22 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:29 2012 -0700" }, "message": "cpu: introduce clear_tasks_mm_cpumask() helper\n\nMany architectures clear tasks\u0027 mm_cpumask like this:\n\n\tread_lock(\u0026tasklist_lock);\n\tfor_each_process(p) {\n\t\tif (p-\u003emm)\n\t\t\tcpumask_clear_cpu(cpu, mm_cpumask(p-\u003emm));\n\t}\n\tread_unlock(\u0026tasklist_lock);\n\nDepending on the context, the code above may have several problems,\nsuch as:\n\n1. Working with task-\u003emm w/o getting mm or grabing the task lock is\n dangerous as -\u003emm might disappear (exit_mm() assigns NULL under\n task_lock(), so tasklist lock is not enough).\n\n2. Checking for process-\u003emm is not enough because process\u0027 main\n thread may exit or detach its mm via use_mm(), but other threads\n may still have a valid mm.\n\nThis patch implements a small helper function that does things\ncorrectly, i.e.:\n\n1. We take the task\u0027s lock while whe handle its mm (we can\u0027t use\n get_task_mm()/mmput() pair as mmput() might sleep);\n\n2. To catch exited main thread case, we use find_lock_task_mm(),\n which walks up all threads and returns an appropriate task\n (with task lock held).\n\nAlso, Per Peter Zijlstra\u0027s idea, now we don\u0027t grab tasklist_lock in\nthe new helper, instead we take the rcu read lock. We can do this\nbecause the function is called after the cpu is taken down and marked\noffline, so no new tasks will get this cpu set in their mm mask.\n\nSigned-off-by: Anton Vorontsov \u003canton.vorontsov@linaro.org\u003e\nCc: Richard Weinberger \u003crichard@nod.at\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f7505d64f2db5da2d7d94873ddf2cd2524847061", "tree": "a10aee9604306826816e8e5fc689201f49d7a6d0", "parents": [ "bca15543736f9be6d84e0bbc262ea7069076b9e6" ], "author": { "name": "Konstantin Khlebnikov", "email": "khlebnikov@openvz.org", "time": "Thu May 31 16:26:21 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:29 2012 -0700" }, "message": "fork: call complete_vfork_done() after clearing child_tid and flushing rss-counters\n\nChild should wake up the parent from vfork() only after finishing all\noperations with shared mm. There is no sense in using\nCLONE_CHILD_CLEARTID together with CLONE_VFORK, but it looks more accurate\nnow.\n\nSigned-off-by: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nCc: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "168eeccbc956d2ec083c3a513f7706784ee0dc5f", "tree": "6fb95d3080fadd96ea37b0e8c1bd747a183f8f60", "parents": [ "43e13cc107cf6cd3c15fbe1cef849435c2223d50" ], "author": { "name": "Tim Bird", "email": "tim.bird@am.sony.com", "time": "Thu May 31 16:26:16 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "stack usage: add pid to warning printk in check_stack_usage\n\nIn embedded systems, sometimes the same program (busybox) is the cause of\nmultiple warnings. Outputting the pid with the program name in the\nwarning printk helps distinguish which instances of a program are using\nthe stack most.\n\nThis is a small patch, but useful.\n\nSigned-off-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "43e13cc107cf6cd3c15fbe1cef849435c2223d50", "tree": "9a1b3aa79ec2e8374944c23cf57a73790a3fc6ce", "parents": [ "9b3c98cd663750c33434572ff76ba306505eba5a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu May 31 16:26:16 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "cred: remove task_is_dead() from __task_cred() validation\n\nCommit 8f92054e7ca1 (\"CRED: Fix __task_cred()\u0027s lockdep check and banner\ncomment\"):\n\n add the following validation condition:\n\n task-\u003eexit_state \u003e\u003d 0\n\n to permit the access if the target task is dead and therefore\n unable to change its own credentials.\n\nOK, but afaics currently this can only help wait_task_zombie() which calls\n__task_cred() without rcu lock.\n\nRemove this validation and change wait_task_zombie() to use task_uid()\ninstead. This means we do rcu_read_lock() only to shut up the lockdep,\nbut we already do the same in, say, wait_task_stopped().\n\ntask_is_dead() should die, task-\u003eexit_state !\u003d 0 means that this task has\npassed exit_notify(), only do_wait-like code paths should use this.\n\nUnfortunately, we can\u0027t kill task_is_dead() right now, it has already\nacquired buggy users in drivers/staging. The fix already exists.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nReviewed-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Jiri Olsa \u003cjolsa@redhat.com\u003e\nCc: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9b3c98cd663750c33434572ff76ba306505eba5a", "tree": "ff01ae7a11c5b0ece5a1c7107fc77276505b7342", "parents": [ "785042f2e275089e22c36b462f6495ce8d91732d" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Thu May 31 16:26:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod.c: fix kernel-doc warning\n\nWarning(kernel/kmod.c:419): No description found for parameter \u0027depth\u0027\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "785042f2e275089e22c36b462f6495ce8d91732d", "tree": "4e847408b4e675c7c616d357ae9b330f7104fbc0", "parents": [ "81ab6e7b26b453a795d46f2616ed0e31d97f05b9" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu May 31 16:26:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod: move call_usermodehelper_fns() to .c file and unexport all it\u0027s helpers\n\nIf we move call_usermodehelper_fns() to kmod.c file and EXPORT_SYMBOL it\nwe can avoid exporting all it\u0027s helper functions:\n\tcall_usermodehelper_setup\n\tcall_usermodehelper_setfns\n\tcall_usermodehelper_exec\nAnd make all of them static to kmod.c\n\nSince the optimizer will see all these as a single call site it will\ninline them inside call_usermodehelper_fns(). So we loose the call to\n_fns but gain 3 calls to the helpers. (Not that it matters)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "81ab6e7b26b453a795d46f2616ed0e31d97f05b9", "tree": "a8d50eb5b35ad93b793450bfef4d90df34494a2c", "parents": [ "ae3cef7300e9fddc35ad251dd5f27c5b88c8594a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu May 31 16:26:15 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod: convert two call sites to call_usermodehelper_fns()\n\nBoth kernel/sys.c \u0026\u0026 security/keys/request_key.c where inlining the exact\nsame code as call_usermodehelper_fns(); So simply convert these sites to\ndirectly use call_usermodehelper_fns().\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ae3cef7300e9fddc35ad251dd5f27c5b88c8594a", "tree": "d1f057eaeac5234e9056b3e9fa186c1bd7873bc5", "parents": [ "f0aac6162e945590057dcfb841bdce8fd18ed4f6" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu May 31 16:26:14 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:28 2012 -0700" }, "message": "kmod: unexport call_usermodehelper_freeinfo()\n\ncall_usermodehelper_freeinfo() is not used outside of kmod.c. So unexport\nit, and make it static to kmod.c\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Tetsuo Handa \u003cpenguin-kernel@I-love.SAKURA.ne.jp\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d84970bbaf9a09b3fc60c18ee6d59bc9cb4c3b8a", "tree": "6ff6ac8a9c40c68e925ed000faae72379e6a3ea8", "parents": [ "97fd75b7b8e0f4e6d3f06b819c89b2555f626fcf" ], "author": { "name": "Nicolas Pitre", "email": "nico@fluxnic.net", "time": "Thu May 31 16:26:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:27 2012 -0700" }, "message": "kernel/cpu_pm.c: fix various typos\n\nSigned-off-by: Nicolas Pitre \u003cnico@linaro.org\u003e\nAcked-by: Colin Cross \u003cccross@android.com\u003e\nAcked-by: Santosh Shilimkar \u003csantosh.shilimkar@ti.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "97fd75b7b8e0f4e6d3f06b819c89b2555f626fcf", "tree": "96a575e38c143ddabe9a35d8ad89f268ccafb569", "parents": [ "499eea6bf9c06df3bf4549954aee6fb3427946ed" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Thu May 31 16:26:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:26 2012 -0700" }, "message": "kernel/irq/manage.c: use the pr_foo() infrastructure to prefix printks\n\nUse the module-wide pr_fmt() mechanism rather than open-coding \"genirq: \"\neverywhere.\n\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "499eea6bf9c06df3bf4549954aee6fb3427946ed", "tree": "bdd7c4be7ac845e0511c6b36f91245105ed8fdcf", "parents": [ "5401cf3fac92b35415c1d011e9866a90b8bed88f" ], "author": { "name": "Sasikantha babu", "email": "sasikanth.v19@gmail.com", "time": "Thu May 31 16:26:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:26 2012 -0700" }, "message": "sethostname/setdomainname: notify userspace when there is a change in uts_kern_table\n\nsethostname() and setdomainname() notify userspace on failure (without\nmodifying uts_kern_table). Change things so that we only notify userspace\non success, when uts_kern_table was actually modified.\n\nSigned-off-by: Sasikantha babu \u003csasikanth.v19@gmail.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@linuxfoundation.org\u003e\nCc: WANG Cong \u003camwang@redhat.com\u003e\nReviewed-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ee5e5683d8ac3fec876cb6c26792212f773d5898", "tree": "80268aac11745372df02fb3fbdab669e60a405af", "parents": [ "a3860c1c5dd1137db23d7786d284939c5761d517" ], "author": { "name": "Wei Yang", "email": "weiyang@linux.vnet.ibm.com", "time": "Thu May 31 16:26:05 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 31 17:49:26 2012 -0700" }, "message": "kernel/resource.c: correct the comment of allocate_resource()\n\nIn the comment of allocate_resource(), the explanation of parameter max\nand min is not correct.\n\nActually, these two parameters are used to specify the range of the\nresource that will be allocated, not the min/max size that will be\nallocated.\n\nSigned-off-by: Wei Yang \u003cweiyang@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cb7225feec627e91d598198996429e9ee6804f8d", "tree": "15b755aadc5c3df60282eddbddc4a542d829ddf8", "parents": [ "a23c4dc422cff7bd30f40f5dc7c9ac4a6339005a" ], "author": { "name": "Namhyung Kim", "email": "namhyung.kim@lge.com", "time": "Thu May 31 14:51:44 2012 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Thu May 31 14:01:00 2012 -0300" }, "message": "perf: Remove duplicate invocation on perf_event_for_each\n\nThe @func callback was invoked twice for group leader when\nperf_event_for_each() called. It seems the commit 75f937f24bd9\n(\"perf_counter: Fix ctx-\u003emutex vs counter -\u003emutex inversion\") made the\nmistake during the change.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung.kim@lge.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1338443506-25009-1-git-send-email-namhyung.kim@lge.com\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "65a50c951a38e9827dd9655b6e686bde912e799b", "tree": "cce85e74511741d52069977fee6984ce66c9277c", "parents": [ "42fe55ce905212542426fa6407a76534a5fb696a", "59cd358a7a5b2f6b61faa01dae6cfda3830ac62a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 11:12:00 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 11:12:00 2012 -0700" }, "message": "Merge branch \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf updates from Ingo Molnar.\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)\n perf ui browser: Stop using \u0027self\u0027\n perf annotate browser: Read perf config file for settings\n perf config: Allow \u0027_\u0027 in config file variable names\n perf annotate browser: Make feature toggles global\n perf annotate browser: The idx_asm field should be used in asm only view\n perf tools: Convert critical messages to ui__error()\n perf ui: Make --stdio default when TUI is not supported\n tools lib traceevent: Silence compiler warning on 32bit build\n perf record: Fix branch_stack type in perf_record_opts\n perf tools: Reconstruct event with modifiers from perf_event_attr\n perf top: Fix counter name fixup when fallbacking to cpu-clock\n perf tools: fix thread_map__new_by_pid_str() memory leak in error path\n perf tools: Do not use _FORTIFY_SOURCE when DEBUG\u003d1 is specified\n tools lib traceevent: Fix signature of create_arg_item()\n tools lib traceevent: Use proper function parameter type\n tools lib traceevent: Fix freeing arg on process_dynamic_array()\n tools lib traceevent: Fix a possibly wrong memory dereference\n tools lib traceevent: Fix a possible memory leak\n tools lib traceevent: Allow expressions in __print_symbolic() fields\n perf evlist: Explicititely initialize input_name\n ...\n" }, { "commit": "0d167518e045cc8bb63f0a8a0a85ad4fa4e0044f", "tree": "101a9b5d425d79f663e4f25f1e90b7a8cc6604f1", "parents": [ "2f83766d4b18774c856329a8fca4c9338dfeda39", "ff26eaadf4d914e397872b99885d45756104e9ae" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 08:52:42 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 30 08:52:42 2012 -0700" }, "message": "Merge branch \u0027for-3.5/core\u0027 of git://git.kernel.dk/linux-block\n\nMerge block/IO core bits from Jens Axboe:\n \"This is a bit bigger on the core side than usual, but that is purely\n because we decided to hold off on parts of Tejun\u0027s submission on 3.4\n to give it a bit more time to simmer. As a consequence, it\u0027s seen a\n long cycle in for-next.\n\n It contains:\n\n - Bug fix from Dan, wrong locking type.\n - Relax splice gifting restriction from Eric.\n - A ton of updates from Tejun, primarily for blkcg. This improves\n the code a lot, making the API nicer and cleaner, and also includes\n fixes for how we handle and tie policies and re-activate on\n switches. The changes also include generic bug fixes.\n - A simple fix from Vivek, along with a fix for doing proper delayed\n allocation of the blkcg stats.\"\n\nFix up annoying conflict just due to different merge resolution in\nDocumentation/feature-removal-schedule.txt\n\n* \u0027for-3.5/core\u0027 of git://git.kernel.dk/linux-block: (92 commits)\n blkcg: tg_stats_alloc_lock is an irq lock\n vmsplice: relax alignement requirements for SPLICE_F_GIFT\n blkcg: use radix tree to index blkgs from blkcg\n blkcg: fix blkcg-\u003ecss ref leak in __blkg_lookup_create()\n block: fix elvpriv allocation failure handling\n block: collapse blk_alloc_request() into get_request()\n blkcg: collapse blkcg_policy_ops into blkcg_policy\n blkcg: embed struct blkg_policy_data in policy specific data\n blkcg: mass rename of blkcg API\n blkcg: style cleanups for blk-cgroup.h\n blkcg: remove blkio_group-\u003epath[]\n blkcg: blkg_rwstat_read() was missing inline\n blkcg: shoot down blkgs if all policies are deactivated\n blkcg: drop stuff unused after per-queue policy activation update\n blkcg: implement per-queue policy activation\n blkcg: add request_queue-\u003eroot_blkg\n blkcg: make request_queue bypassing on allocation\n blkcg: make sure blkg_lookup() returns %NULL if @q is bypassing\n blkcg: make blkg_conf_prep() take @pol and return with queue lock held\n blkcg: remove static policy ID enums\n ...\n" }, { "commit": "6a4c96eef42f835734a82c6b512abf9881b7c55d", "tree": "d7b542e7606e0eaeec8f1160ea2eb37f18fa8d29", "parents": [ "7997a456ef841bb78eb6f881d7cc2c17c2f9b35e" ], "author": { "name": "Kamalesh Babulal", "email": "kamalesh@linux.vnet.ibm.com", "time": "Wed May 23 14:44:11 2012 +0530" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:27 2012 +0200" }, "message": "sched: Remove NULL assignment of dattr_cur\n\nRemove explicit NULL assignment of static pointer\ndattr_cur from init_sched_domains().\n\nSigned-off-by: Kamalesh Babulal \u003ckamalesh@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/20120523091411.GG5005@linux.vnet.ibm.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "7997a456ef841bb78eb6f881d7cc2c17c2f9b35e", "tree": "b27fd20b6cec18b19744ae6ad74f201cfab37584", "parents": [ "1292531f6f27af909e713671dd9cc3bcab8114b7" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Fri May 25 15:42:47 2012 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:27 2012 +0200" }, "message": "sched: Remove the last NULL entry from sched_feat_names\n\nNo need to have the last NULL entry.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4FBF29E7.5020805@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "1292531f6f27af909e713671dd9cc3bcab8114b7", "tree": "65f989da9c6bb9596d9b77f9c228f4d63f9b5317", "parents": [ "454c79999f7eaedcdf4c15c449e43902980cbdf5" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Fri May 25 15:41:54 2012 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:26 2012 +0200" }, "message": "sched: Make sched_feat_names const\n\nThe strings sched_feat_names are never changed.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/4FBF29B2.9030904@ct.jp.nec.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "454c79999f7eaedcdf4c15c449e43902980cbdf5", "tree": "0da7f5fe6328283a2bf36648bc04e74028d5bfd8", "parents": [ "29baa7478ba47d746e3625c91d3b2afbf46b4312" ], "author": { "name": "Colin Cross", "email": "ccross@android.com", "time": "Wed May 16 21:34:23 2012 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:25 2012 +0200" }, "message": "sched/rt: Fix SCHED_RR across cgroups\n\ntask_tick_rt() has an optimization to only reschedule SCHED_RR tasks\nif they were the only element on their rq. However, with cgroups\na SCHED_RR task could be the only element on its per-cgroup rq but\nstill be competing with other SCHED_RR tasks in its parent\u0027s\ncgroup. In this case, the SCHED_RR task in the child cgroup would\nnever yield at the end of its timeslice. If the child cgroup\nrt_runtime_us was the same as the parent cgroup rt_runtime_us,\nthe task in the parent cgroup would starve completely.\n\nModify task_tick_rt() to check that the task is the only task on its\nrq, and that the each of the scheduling entities of its ancestors\nis also the only entity on its rq.\n\nSigned-off-by: Colin Cross \u003cccross@android.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/r/1337229266-15798-1-git-send-email-ccross@android.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "29baa7478ba47d746e3625c91d3b2afbf46b4312", "tree": "a902e53baab64d89c07561694d171c4f8f4d1843", "parents": [ "b654f7de41b0e3903ee2b51d3b8db77fe52ce728" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Apr 23 12:11:21 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:25 2012 +0200" }, "message": "sched: Move nr_cpus_allowed out of \u0027struct sched_rt_entity\u0027\n\nSince nr_cpus_allowed is used outside of sched/rt.c and wants to be\nused outside of there more, move it to a more natural site.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-kr61f02y9brwzkh6x53pdptm@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "b654f7de41b0e3903ee2b51d3b8db77fe52ce728", "tree": "cdcd46a04d8b59d75045f1d3ae753e4843dbe2c0", "parents": [ "74a5ce20e6eeeb3751340b390e7ac1d1d07bbf55" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue May 22 14:04:28 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:24 2012 +0200" }, "message": "sched: Make sure to not re-read variables after validation\n\nWe could re-read rq-\u003ert_avg after we validated it was smaller than\ntotal, invalidating the check and resulting in an unintended negative.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nLink: http://lkml.kernel.org/r/1337688268.9698.29.camel@twins\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "74a5ce20e6eeeb3751340b390e7ac1d1d07bbf55", "tree": "ebbef56666aa11303eafbfb6adbfce56e7a4c605", "parents": [ "2ea45800d8e1c3c51c45a233d6bd6289a297a386" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed May 23 18:00:43 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:24 2012 +0200" }, "message": "sched: Fix SD_OVERLAP\n\nSD_OVERLAP exists to allow overlapping groups, overlapping groups\nappear in NUMA topologies that aren\u0027t fully connected.\n\nThe typical result of not fully connected NUMA is that each cpu (or\nrather node) will have different spans for a particular distance.\nHowever due to how sched domains are traversed -- only the first cpu\nin the mask goes one level up -- the next level only cares about the\nspans of the cpus that went up.\n\nDue to this two things were observed to be broken:\n\n - build_overlap_sched_groups() -- since its possible the cpu we\u0027re\n building the groups for exists in multiple (or all) groups, the\n selection criteria of the first group didn\u0027t ensure there was a cpu\n for which is was true that cpumask_first(span) \u003d\u003d cpu. Thus load-\n balancing would terminate.\n\n - update_group_power() -- assumed that the cpu span of the first\n group of the domain was covered by all groups of the child domain.\n The above explains why this isn\u0027t true, so deal with it.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nLink: http://lkml.kernel.org/r/1337788843.9783.14.camel@laptop\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "2ea45800d8e1c3c51c45a233d6bd6289a297a386", "tree": "13a6795e66593f355804915f30800f85b0289216", "parents": [ "5aaa0b7a2ed5b12692c9ffb5222182bd558d3146" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri May 25 09:26:43 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:23 2012 +0200" }, "message": "sched: Don\u0027t try allocating memory from offline nodes\n\nAllocators don\u0027t appreciate it when you try and allocate memory from\noffline nodes.\n\nReported-and-tested-by: Tony Luck \u003ctony.luck@intel.com\u003e\nReported-and-tested-by: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLink: http://lkml.kernel.org/n/tip-epfc1io9whb7o22bcujf31vn@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "5aaa0b7a2ed5b12692c9ffb5222182bd558d3146", "tree": "0334762e9d0e773acf21e61c682f895c25201c89", "parents": [ "9f646389aa7727a2fd8f9ae6337b92af9cfbc264" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu May 17 17:15:29 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 14:02:16 2012 +0200" }, "message": "sched/nohz: Fix rq-\u003ecpu_load calculations some more\n\nFollow up on commit 556061b00 (\"sched/nohz: Fix rq-\u003ecpu_load[]\ncalculations\") since while that fixed the busy case it regressed the\nmostly idle case.\n\nAdd a callback from the nohz exit to also age the rq-\u003ecpu_load[]\narray. This closes the hole where either there was no nohz load\nbalance pass during the nohz, or there was a \u0027significant\u0027 amount of\nidle time between the last nohz balance and the nohz exit.\n\nSo we\u0027ll update unconditionally from the tick to not insert any\naccidental 0 load periods while busy, and we try and catch up from\nnohz idle balance and nohz exit. Both these are still prone to missing\na jiffy, but that has always been the case.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: pjt@google.com\nCc: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nLink: http://lkml.kernel.org/n/tip-kt0trz0apodbf84ucjfdbr1a@git.kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "063e04776172f93b16a5eefd5661a340c1126513", "tree": "19cb1623631c8cc5dcf0d91f4731feec7cbefa04", "parents": [ "59cd358a7a5b2f6b61faa01dae6cfda3830ac62a", "731a7378b81c2f5fa88ca1ae20b83d548d5613dc" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 10:59:04 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 30 10:59:04 2012 +0200" }, "message": "Merge branch \u0027linus\u0027 into perf/urgent\n\nMerge back Linus\u0027s latest branch so that we pick up the uprobes changes.\n\n( I tested this branch locally and while it\u0027s one from the middle of the\n merge window it\u0027s a good one to base further work off. )\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "eea62f831b8030b0eeea8314eed73b6132d1de26", "tree": "7fd58cf63e62484b8d3a0c8c5d2e9193b85945a4", "parents": [ "9dd6fa03ab31bb57cee4623a689d058d222fbe68" ], "author": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Tue May 08 13:32:24 2012 +0930" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue May 29 23:28:41 2012 -0400" }, "message": "brlocks/lglocks: turn into functions\n\nlglocks and brlocks are currently generated with some complicated macros\nin lglock.h. But there\u0027s no reason to not just use common utility\nfunctions and put all the data into a common data structure.\n\nSince there are at least two users it makes sense to share this code in a\nlibrary. This is also easier maintainable than a macro forest.\n\nThis will also make it later possible to dynamically allocate lglocks and\nalso use them in modules (this would both still need some additional, but\nnow straightforward, code)\n\n[akpm@linux-foundation.org: checkpatch fixes]\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "4796dd200db943e36f876e7029552212e5bbdf33", "tree": "a594c2b1ce1f4dbc96b25a516e49655917a9fa30", "parents": [ "05a6c8a9226599f921bd0b6e439dbc04df96a6fc" ], "author": { "name": "Stephen Boyd", "email": "sboyd@codeaurora.org", "time": "Tue May 29 15:07:33 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:32 2012 -0700" }, "message": "vsprintf: fix %ps on non symbols when using kallsyms\n\nUsing %ps in a printk format will sometimes fail silently and print the\nempty string if the address passed in does not match a symbol that\nkallsyms knows about. But using %pS will fall back to printing the full\naddress if kallsyms can\u0027t find the symbol. Make %ps act the same as %pS\nby falling back to printing the address.\n\nWhile we\u0027re here also make %ps print the module that a symbol comes from\nso that it matches what %pS already does. Take this simple function for\nexample (in a module):\n\n\tstatic void test_printk(void)\n\t{\n\t\tint test;\n\t\tpr_info(\"with pS: %pS\\n\", \u0026test);\n\t\tpr_info(\"with ps: %ps\\n\", \u0026test);\n\t}\n\nBefore this patch:\n\n with pS: 0xdff7df44\n with ps:\n\nAfter this patch:\n\n with pS: 0xdff7df44\n with ps: 0xdff7df44\n\nSigned-off-by: Stephen Boyd \u003csboyd@codeaurora.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2bb2ba9d51a8044a71a29608d2c4ef8f5b2d57a2", "tree": "5e58869c606c541d41a9bfa62aa6e8bc42cae5ac", "parents": [ "f9be23d6da035241b7687b25e64401171986dcef" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Tue May 29 15:07:03 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:27 2012 -0700" }, "message": "rescounters: add res_counter_uncharge_until()\n\nWhen killing a res_counter which is a child of other counter, we need to\ndo\n\n\tres_counter_uncharge(child, xxx)\n\tres_counter_charge(parent, xxx)\n\nThis is not atomic and wastes CPU. This patch adds\nres_counter_uncharge_until(). This function\u0027s uncharge propagates to\nancestors until specified res_counter.\n\n\tres_counter_uncharge_until(child, parent, xxx)\n\nNow the operation is atomic and efficient.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@redhat.com\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\nCc: Michal Hocko \u003cmhocko@suse.cz\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Ying Han \u003cyinghan@google.com\u003e\nCc: Glauber Costa \u003cglommer@parallels.com\u003e\nReviewed-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "91c63734f6908425903aed69c04035592f18d398", "tree": "6790827ab915b17c63d5c39d8c72c47f3764f868", "parents": [ "0ce72d4f7333248efbef1f3309770c7edb1b2625" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue May 29 15:06:24 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:20 2012 -0700" }, "message": "kernel: cgroup: push rcu read locking from css_is_ancestor() to callsite\n\nLibrary functions should not grab locks when the callsites can do it,\neven if the lock nests like the rcu read-side lock does.\n\nPush the rcu_read_lock() from css_is_ancestor() to its single user,\nmem_cgroup_same_or_subtree() in preparation for another user that may\nalready hold the rcu read-side lock.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Michal Hocko \u003cmhocko@suse.cz\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7edc8b0ac16cbaed7cb4ea4c6b95ce98d2997e84", "tree": "e333f72f3dc2c91385b8392bc31a44f5423d7f5c", "parents": [ "841e31e5cc6219d62054788faa289b6ed682d068" ], "author": { "name": "Siddhesh Poyarekar", "email": "siddhesh.poyarekar@gmail.com", "time": "Tue May 29 15:06:22 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:19 2012 -0700" }, "message": "mm/fork: fix overflow in vma length when copying mmap on clone\n\nThe vma length in dup_mmap is calculated and stored in a unsigned int,\nwhich is insufficient and hence overflows for very large maps (beyond\n16TB). The following program demonstrates this:\n\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/mman.h\u003e\n\n#define GIG 1024 * 1024 * 1024L\n#define EXTENT 16393\n\nint main(void)\n{\n int i, r;\n void *m;\n char buf[1024];\n\n for (i \u003d 0; i \u003c EXTENT; i++) {\n m \u003d mmap(NULL, (size_t) 1 * 1024 * 1024 * 1024L,\n PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);\n\n if (m \u003d\u003d (void *)-1)\n printf(\"MMAP Failed: %d\\n\", m);\n else\n printf(\"%d : MMAP returned %p\\n\", i, m);\n\n r \u003d fork();\n\n if (r \u003d\u003d 0) {\n printf(\"%d: successed\\n\", i);\n return 0;\n } else if (r \u003c 0)\n printf(\"FORK Failed: %d\\n\", r);\n else if (r \u003e 0)\n wait(NULL);\n }\n return 0;\n}\n\nIncrease the storage size of the result to unsigned long, which is\nsufficient for storing the difference between addresses.\n\nSigned-off-by: Siddhesh Poyarekar \u003csiddhesh.poyarekar@gmail.com\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Hugh Dickins \u003chughd@google.com\u003e\nCc: \u003cstable@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e709ffd6169ccd259eb5874e853303e91e94e829", "tree": "796b56c2507b8581492da73e354d651c9dd7076b", "parents": [ "edad9d2c337d43278a9d5aeb0ed531c2e838f8a6" ], "author": { "name": "Rik van Riel", "email": "riel@redhat.com", "time": "Tue May 29 15:06:18 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 29 16:22:19 2012 -0700" }, "message": "mm: remove swap token code\n\nThe swap token code no longer fits in with the current VM model. It\ndoes not play well with cgroups or the better NUMA placement code in\ndevelopment, since we have only one swap token globally.\n\nIt also has the potential to mess with scalability of the system, by\nincreasing the number of non-reclaimable pages on the active and\ninactive anon LRU lists.\n\nLast but not least, the swap token code has been broken for a year\nwithout complaints, as reported by Konstantin Khlebnikov. This suggests\nwe no longer have much use for it.\n\nThe days of sub-1G memory systems with heavy use of swap are over. If\nwe ever need thrashing reducing code in the future, we will have to\nimplement something that does scale.\n\nSigned-off-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: Konstantin Khlebnikov \u003ckhlebnikov@openvz.org\u003e\nAcked-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Hugh Dickins \u003chughd@google.com\u003e\nAcked-by: Bob Picco \u003cbpicco@meloft.net\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa980ca87d15bb8a1317853f257a505990f3ffde", "tree": "4288f6d27c8a2e30c1fa3b8a9a0f95c5fd6d48c6", "parents": [ "6101167727932a929e37fb8a6eeb68bdbf54d58e" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu May 24 08:24:39 2012 -0700" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Sun May 27 17:22:56 2012 -0700" }, "message": "cgroup: superblock can\u0027t be released with active dentries\n\n48ddbe1946 \"cgroup: make css-\u003erefcnt clearing on cgroup removal\noptional\" allowed a css to linger after the associated cgroup is\nremoved. As a css holds a reference on the cgroup\u0027s dentry, it means\nthat cgroup dentries may linger for a while.\n\ncgroup_create() does grab an active reference on the superblock to\nprevent it from going away while there are !root cgroups; however, the\nreference is put from cgroup_diput() which is invoked on cgroup\nremoval, so cgroup dentries which are removed but persisting due to\nlingering csses already have released their superblock active refs\nallowing superblock to be killed while those dentries are around.\n\nGiven the right condition, this makes cgroup_kill_sb() call\nkill_litter_super() with dentries with non-zero d_count leading to\nBUG() in shrink_dcache_for_umount_subtree().\n\nFix it by adding cgroup_dops-\u003ed_release() operation and moving\ndeactivate_super() to it. cgroup_diput() now marks dentry-\u003ed_fsdata\nwith itself if superblock should be deactivated and cgroup_d_release()\ndeactivates the superblock on dentry release.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: Sasha Levin \u003clevinsasha928@gmail.com\u003e\nTested-by: Sasha Levin \u003clevinsasha928@gmail.com\u003e\nLKML-Reference: \u003cCA+1xoqe5hMuxzCRhMy7J0XchDk2ZnuxOHJKikROk1-ReAzcT6g@mail.gmail.com\u003e\nAcked-by: Li Zefan \u003clizefan@huawei.com\u003e\n" }, { "commit": "62cf20b32aee4ae889a2eb40fd41c0eab73de970", "tree": "a3bd7d28b380b0a3e52398542910027c6c8a92cb", "parents": [ "fc0830fe017d02b7b4995b5c402b484b65d9dfc6" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 14:08:57 2012 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 14:08:57 2012 +0200" }, "message": "tick: Move skew_tick option into the HIGH_RES_TIMER section\n\ncommit 5307c95 (tick: Add tick skew boot option) broke the\n!CONFIG_HIGH_RES_TIMERS build.\n\nMove the boot option parsing into the CONFIG_HIGH_RES_TIMERS section.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Mike Galbraith \u003cmgalbraith@suse.de\u003e\n" }, { "commit": "e5400321a6f15ce0fe77c8455954f213ef7dcc54", "tree": "4bd9bc61b44ec4e91f000d2d8968f4d1e66f080b", "parents": [ "5307c9556bc17e3cd26d4e94fc3b2565921834de" ], "author": { "name": "Magnus Damm", "email": "magnus.damm@gmail.com", "time": "Wed May 09 23:39:34 2012 +0900" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 01:44:51 2012 +0200" }, "message": "clockevents: Make clockevents_config() a global symbol\n\nMake clockevents_config() into a global symbol to allow it to be used\nby compiled-in clockevent drivers. This is needed by drivers that want\nto update the timer frequency after registration time.\n\nSigned-off-by: Magnus Damm \u003cdamm@opensource.se\u003e\nTested-by: Simon Horman \u003chorms@verge.net.au\u003e\nCc: arnd@arndb.de\nCc: johnstul@us.ibm.com\nCc: rjw@sisk.pl\nCc: lethal@linux-sh.org\nCc: gregkh@linuxfoundation.org\nCc: olof@lixom.net\nCc: Magnus Damm \u003cmagnus.damm@gmail.com\u003e\nLink: http://lkml.kernel.org/r/20120509143934.27521.46553.sendpatchset@w520\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "5307c9556bc17e3cd26d4e94fc3b2565921834de", "tree": "e51937060ccd5e293dec7246a7961b0ae5509a53", "parents": [ "ce004178be1bbaa292e9e6497939e2970300095a" ], "author": { "name": "Mike Galbraith", "email": "mgalbraith@suse.de", "time": "Tue May 08 12:20:58 2012 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri May 25 01:44:50 2012 +0200" }, "message": "tick: Add tick skew boot option\n\nLet the user decide whether power consumption or jitter is the\nmore important consideration for their machines.\n\nQuoting removal commit af5ab277ded04bd9bc6b048c5a2f0e7d70ef0867:\n\n\"Historically, Linux has tried to make the regular timer tick on the\n various CPUs not happen at the same time, to avoid contention on\n xtime_lock.\n \n Nowadays, with the tickless kernel, this contention no longer happens\n since time keeping and updating are done differently. In addition,\n this skew is actually hurting power consumption in a measurable way on\n many-core systems.\"\n\nProblems:\n\n- Contrary to the above, systems do encounter contention on both\n xtime_lock and RCU structure locks when the tick is synchronized.\n \n- Moderate sized RT systems suffer intolerable jitter due to the tick\n being synchronized.\n\n- SGI reports the same for their large systems.\n\n- Fully utilized systems reap no power saving benefit from skew removal,\n but do suffer from resulting induced lock contention.\n\n- 0209f649 rcu: limit rcu_node leaf-level fanout\n This patch was born to combat lock contention which testing showed\n to have been _induced by_ skew removal. Skew the tick, contention\n disappeared virtually completely.\n\nSigned-off-by: Mike Galbraith \u003cmgalbraith@suse.de\u003e\nLink: http://lkml.kernel.org/r/1336472458.21924.78.camel@marge.simpson.net\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "07acfc2a9349a8ce45b236c2624dad452001966b", "tree": "c40f3eaac18a8320e65af220979223b5cd632b1b", "parents": [ "b5f4035adfffbcc6b478de5b8c44b618b3124aff", "322728e55aa7834e2fab2786b76df183c4843a12" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 16:17:30 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 16:17:30 2012 -0700" }, "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm\n\nPull KVM changes from Avi Kivity:\n \"Changes include additional instruction emulation, page-crossing MMIO,\n faster dirty logging, preventing the watchdog from killing a stopped\n guest, module autoload, a new MSI ABI, and some minor optimizations\n and fixes. Outside x86 we have a small s390 and a very large ppc\n update.\n\n Regarding the new (for kvm) rebaseless workflow, some of the patches\n that were merged before we switch trees had to be rebased, while\n others are true pulls. In either case the signoffs should be correct\n now.\"\n\nFix up trivial conflicts in Documentation/feature-removal-schedule.txt\narch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h.\n\nI suspect the kvm_para.h resolution ends up doing the \"do I have cpuid\"\ncheck effectively twice (it was done differently in two different\ncommits), but better safe than sorry ;)\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits)\n KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block\n KVM: s390: onereg for timer related registers\n KVM: s390: epoch difference and TOD programmable field\n KVM: s390: KVM_GET/SET_ONEREG for s390\n KVM: s390: add capability indicating COW support\n KVM: Fix mmu_reload() clash with nested vmx event injection\n KVM: MMU: Don\u0027t use RCU for lockless shadow walking\n KVM: VMX: Optimize %ds, %es reload\n KVM: VMX: Fix %ds/%es clobber\n KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()\n KVM: VMX: unlike vmcs on fail path\n KVM: PPC: Emulator: clean up SPR reads and writes\n KVM: PPC: Emulator: clean up instruction parsing\n kvm/powerpc: Add new ioctl to retreive server MMU infos\n kvm/book3s: Make kernel emulated H_PUT_TCE available for \"PR\" KVM\n KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler\n KVM: PPC: Book3S: Enable IRQs during exit handling\n KVM: PPC: Fix PR KVM on POWER7 bare metal\n KVM: PPC: Fix stbux emulation\n KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields\n ...\n" }, { "commit": "4a70d2d9909b43ed88043b98cabe2c7fbd563021", "tree": "380c5c2a4c2826b5275fae15eb91c78d8ead6467", "parents": [ "ee74d13229fb606353ff56f4927fa93b37e95bbe" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu May 24 20:41:00 2012 +0530" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 24 22:58:08 2012 +0200" }, "message": "smpboot, idle: Fix comment mismatch over idle_threads_init()\n\nThe comment over idle_threads_init() really talks about the functionality\nof idle_init(). Move that comment to idle_init(), and add a suitable\ncomment over idle_threads_init().\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: suresh.b.siddha@intel.com\nCc: venki@google.com\nCc: nikunj@linux.vnet.ibm.com\nLink: http://lkml.kernel.org/r/20120524151100.2549.66501.stgit@srivatsabhat.in.ibm.com\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "ee74d13229fb606353ff56f4927fa93b37e95bbe", "tree": "6cfc806db818bdc739c5a46d41e2c81c96364463", "parents": [ "f9369910a6225b8d4892c3f20ae740a711cd5ace" ], "author": { "name": "Srivatsa S. Bhat", "email": "srivatsa.bhat@linux.vnet.ibm.com", "time": "Thu May 24 20:40:55 2012 +0530" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 24 22:58:08 2012 +0200" }, "message": "smpboot, idle: Optimize calls to smp_processor_id() in idle_threads_init()\n\nWhile trying to initialize idle threads for all cpus, idle_threads_init()\ncalls smp_processor_id() in a loop, which is unnecessary. The intent\nis to initialize idle threads for all non-boot cpus. So just use a variable\nto note the boot cpu and use it in the loop.\n\nSigned-off-by: Srivatsa S. Bhat \u003csrivatsa.bhat@linux.vnet.ibm.com\u003e\nCc: suresh.b.siddha@intel.com\nCc: venki@google.com\nCc: nikunj@linux.vnet.ibm.com\nLink: http://lkml.kernel.org/r/20120524151055.2549.64309.stgit@srivatsabhat.in.ibm.com\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "b343c8beec664ef6f0e9964d3001c7c7966331ae", "tree": "c61be2147a700ff83704164686e1db23461d0bb3", "parents": [ "745914df47053c758f3d7999dfa82df184c2e5af", "a87487e687ceafdc696b8cb1fb27e37cc463586b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 13:55:24 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 13:55:24 2012 -0700" }, "message": "Merge tag \u0027irqdomain-for-linus\u0027 of git://git.secretlab.ca/git/linux-2.6\n\nPull irqdomain changes from Grant Likely:\n \"Minor changes and fixups for irqdomain infrastructure. The most\n important change adds the ability to remove a registered irqdomain.\"\n\n* tag \u0027irqdomain-for-linus\u0027 of git://git.secretlab.ca/git/linux-2.6:\n irqdomain: Document size parameter of irq_domain_add_linear()\n irqdomain: trivial pr_fmt conversion.\n irqdomain: Kill off duplicate definitions.\n irqdomain: Make irq_domain_simple_map() static.\n irqdomain: Export remaining public API symbols.\n irqdomain: Support removal of IRQ domains.\n" }, { "commit": "818b0f3bfb236ae66cac3ff38e86b9e47f24b7aa", "tree": "711e4396d69f1127cd723b00ad348c47bd433a2b", "parents": [ "23812b9d9e497580d38c62ebdc6f308733b0a32a" ], "author": { "name": "Jiang Liu", "email": "liuj97@gmail.com", "time": "Fri Mar 30 23:11:34 2012 +0800" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 24 22:36:40 2012 +0200" }, "message": "genirq: Introduce irq_do_set_affinity() to reduce duplicated code\n\nAll invocations of chip-\u003eirq_set_affinity() are doing the same return\nvalue checks. Let them all use a common function.\n\n[ tglx: removed the silly likely while at it ]\n\nSigned-off-by: Jiang Liu \u003cjiang.liu@huawei.com\u003e\nCc: Jiang Liu \u003cliuj97@gmail.com\u003e\nCc: Keping Chen \u003cchenkeping@huawei.com\u003e\nLink: http://lkml.kernel.org/r/1333120296-13563-3-git-send-email-jiang.liu@huawei.com\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "c7523a7c88db637d66841018532cb4b3ab6ab0a8", "tree": "cec08263a493831d43e17d4daa633e2a6b09480e", "parents": [ "2f78d8e249973f1eeb88315e6444e616c60177ae", "b80fe1015be4e3c926d8eb4cc6a340fdd22a43e1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 13:29:46 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 13:29:46 2012 -0700" }, "message": "Merge branch \u0027timers-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull timer updates from Thomas Gleixner.\n\nVarious trivial conflict fixups in arch Kconfig due to addition of\nunrelated entries nearby. And one slightly more subtle one for sparc32\n(new user of GENERIC_CLOCKEVENTS), fixed up as per Thomas.\n\n* \u0027timers-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)\n timekeeping: Fix a few minor newline issues.\n time: remove obsolete declaration\n ntp: Fix a stale comment and a few stray newlines.\n ntp: Correct TAI offset during leap second\n timers: Fixup the Kconfig consolidation fallout\n x86: Use generic time config\n unicore32: Use generic time config\n um: Use generic time config\n tile: Use generic time config\n sparc: Use: generic time config\n sh: Use generic time config\n score: Use generic time config\n s390: Use generic time config\n openrisc: Use generic time config\n powerpc: Use generic time config\n mn10300: Use generic time config\n mips: Use generic time config\n microblaze: Use generic time config\n m68k: Use generic time config\n m32r: Use generic time config\n ...\n" }, { "commit": "23812b9d9e497580d38c62ebdc6f308733b0a32a", "tree": "5093189b4bea411380c112a35b9183b5b7deea95", "parents": [ "f9369910a6225b8d4892c3f20ae740a711cd5ace" ], "author": { "name": "Ning Jiang", "email": "ning.n.jiang@gmail.com", "time": "Tue May 22 00:19:20 2012 +0800" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu May 24 22:27:45 2012 +0200" }, "message": "genirq: Add IRQS_PENDING for nested and simple irq\n\nEvery interrupt which is an active wakeup source needs the ability to\nabort suspend if there is a pending irq. Right now only edge and level\nirqs can do that.\n\n |\n +---------+\n | INTC |\n +---------+\n | GPIO_IRQ\n +------------+\n | gpio-exp |\n +------------+\n | |\n GPIO0_IRQ GPIO1_IRQ\n\nIn the above diagram, gpio expander has irq number GPIO_IRQ, it is\nconnected with two sub GPIO pins, GPIO0 and GPIO1.\n\nDuring suspend, we set IRQF_NO_SUSPEND for GPIO_IRQ so that gpio\nexpander driver can handle the sub irq GPIO0_IRQ and GPIO1_IRQ, and\nthese two irqs themselves can further be handled by simple or nested\nirq in some drivers(typically gpio and mfd driver). If they are used\nas wakeup sources during suspend, we want them to be able to abort\nsuspend too.\n\nSetting IRQS_PENDING flag in handle_nested_irq() and handle_simple_irq()\nwhen the irq is disabled allows check_wakeup_irqs() to identify such\nirqs as source for aborting suspend.\n\nSigned-off-by: Ning Jiang \u003cning.n.jiang@gmail.com\u003e\nCc: rjw@sisk.pl\nLink: http://lkml.kernel.org/r/CAH3Oq6T905%2B3fkF43NAMMFvJvq7dsk_so6T2vQ8ZJrA5xiU3YA@mail.gmail.com\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "28f3d717618156c0dcd2f497d791b578a7931d87", "tree": "37b11581b51929b5473541e53bd242b3e1a9f666", "parents": [ "654443e20dfc0617231f28a07c96a979ee1a0239", "1ca7ee30630e1022dbcf1b51be20580815ffab73" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 11:54:29 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 11:54:29 2012 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net\n\nPull more networking updates from David Miller:\n \"Ok, everything from here on out will be bug fixes.\"\n\n1) One final sync of wireless and bluetooth stuff from John Linville.\n These changes have all been in his tree for more than a week, and\n therefore have had the necessary -next exposure. John was just away\n on a trip and didn\u0027t have a change to send the pull request until a\n day or two ago.\n\n2) Put back some defines in user exposed header file areas that were\n removed during the tokenring purge. From Stephen Hemminger and Paul\n Gortmaker.\n\n3) A bug fix for UDP hash table allocation got lost in the pile due to\n one of those \"you got it.. no I\u0027ve got it..\" situations. :-)\n\n From Tim Bird.\n\n4) SKB coalescing in TCP needs to have stricter checks, otherwise we\u0027ll\n try to coalesce overlapping frags and crash. Fix from Eric Dumazet.\n\n5) RCU routing table lookups can race with free_fib_info(), causing\n crashes when we deref the device pointers in the route. Fix by\n releasing the net device in the RCU callback. From Yanmin Zhang.\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (293 commits)\n tcp: take care of overlaps in tcp_try_coalesce()\n ipv4: fix the rcu race between free_fib_info and ip_route_output_slow\n mm: add a low limit to alloc_large_system_hash\n ipx: restore token ring define to include/linux/ipx.h\n if: restore token ring ARP type to header\n xen: do not disable netfront in dom0\n phy/micrel: Fix ID of KSZ9021\n mISDN: Add X-Tensions USB ISDN TA XC-525\n gianfar:don\u0027t add FCB length to hard_header_len\n Bluetooth: Report proper error number in disconnection\n Bluetooth: Create flags for bt_sk()\n Bluetooth: report the right security level in getsockopt\n Bluetooth: Lock the L2CAP channel when sending\n Bluetooth: Restore locking semantics when looking up L2CAP channels\n Bluetooth: Fix a redundant and problematic incoming MTU check\n Bluetooth: Add support for Foxconn/Hon Hai AR5BBU22 0489:E03C\n Bluetooth: Fix EIR data generation for mgmt_device_found\n Bluetooth: Fix Inquiry with RSSI event mask\n Bluetooth: improve readability of l2cap_seq_list code\n Bluetooth: Fix skb length calculation\n ...\n" }, { "commit": "654443e20dfc0617231f28a07c96a979ee1a0239", "tree": "a0dc3f093eb13892539082e663607c34b4fc2d07", "parents": [ "2c01e7bc46f10e9190818437e564f7e0db875ae9", "9cba26e66d09bf394ae5a739627a1dc8b7cae6f4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 11:39:34 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 11:39:34 2012 -0700" }, "message": "Merge branch \u0027perf-uprobes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull user-space probe instrumentation from Ingo Molnar:\n \"The uprobes code originates from SystemTap and has been used for years\n in Fedora and RHEL kernels. This version is much rewritten, reviews\n from PeterZ, Oleg and myself shaped the end result.\n\n This tree includes uprobes support in \u0027perf probe\u0027 - but SystemTap\n (and other tools) can take advantage of user probe points as well.\n\n Sample usage of uprobes via perf, for example to profile malloc()\n calls without modifying user-space binaries.\n\n First boot a new kernel with CONFIG_UPROBE_EVENT\u003dy enabled.\n\n If you don\u0027t know which function you want to probe you can pick one\n from \u0027perf top\u0027 or can get a list all functions that can be probed\n within libc (binaries can be specified as well):\n\n\t$ perf probe -F -x /lib/libc.so.6\n\n To probe libc\u0027s malloc():\n\n\t$ perf probe -x /lib64/libc.so.6 malloc\n\tAdded new event:\n\tprobe_libc:malloc (on 0x7eac0)\n\n You can now use it in all perf tools, such as:\n\n\tperf record -e probe_libc:malloc -aR sleep 1\n\n Make use of it to create a call graph (as the flat profile is going to\n look very boring):\n\n\t$ perf record -e probe_libc:malloc -gR make\n\t[ perf record: Woken up 173 times to write data ]\n\t[ perf record: Captured and wrote 44.190 MB perf.data (~1930712\n\n\t$ perf report | less\n\n\t 32.03% git libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\n\t 29.49% cc1 libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\t |\n\t |--0.95%-- 0x208eb1000000000\n\t |\n\t |--0.63%-- htab_traverse_noresize\n\n\t 11.04% as libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\t |\n\n\t 7.15% ld libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\t |\n\n\t 5.07% sh libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\t |\n\t 4.99% python-config libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\t |\n\t 4.54% make libc-2.15.so [.] malloc\n\t |\n\t --- malloc\n\t |\n\t |--7.34%-- glob\n\t | |\n\t | |--93.18%-- 0x41588f\n\t | |\n\t | --6.82%-- glob\n\t | 0x41588f\n\n\t ...\n\n Or:\n\n\t$ perf report -g flat | less\n\n\t# Overhead Command Shared Object Symbol\n\t# ........ ............. ............. ..........\n\t#\n\t 32.03% git libc-2.15.so [.] malloc\n\t 27.19%\n\t malloc\n\n\t 29.49% cc1 libc-2.15.so [.] malloc\n\t 24.77%\n\t malloc\n\n\t 11.04% as libc-2.15.so [.] malloc\n\t 11.02%\n\t malloc\n\n\t 7.15% ld libc-2.15.so [.] malloc\n\t 6.57%\n\t malloc\n\n\t ...\n\n The core uprobes design is fairly straightforward: uprobes probe\n points register themselves at (inode:offset) addresses of\n libraries/binaries, after which all existing (or new) vmas that map\n that address will have a software breakpoint injected at that address.\n vmas are COW-ed to preserve original content. The probe points are\n kept in an rbtree.\n\n If user-space executes the probed inode:offset instruction address\n then an event is generated which can be recovered from the regular\n perf event channels and mmap-ed ring-buffer.\n\n Multiple probes at the same address are supported, they create a\n dynamic callback list of event consumers.\n\n The basic model is further complicated by the XOL speedup: the\n original instruction that is probed is copied (in an architecture\n specific fashion) and executed out of line when the probe triggers.\n The XOL area is a single vma per process, with a fixed number of\n entries (which limits probe execution parallelism).\n\n The API: uprobes are installed/removed via\n /sys/kernel/debug/tracing/uprobe_events, the API is integrated to\n align with the kprobes interface as much as possible, but is separate\n to it.\n\n Injecting a probe point is privileged operation, which can be relaxed\n by setting perf_paranoid to -1.\n\n You can use multiple probes as well and mix them with kprobes and\n regular PMU events or tracepoints, when instrumenting a task.\"\n\nFix up trivial conflicts in mm/memory.c due to previous cleanup of\nunmap_single_vma().\n\n* \u0027perf-uprobes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)\n perf probe: Detect probe target when m/x options are absent\n perf probe: Provide perf interface for uprobes\n tracing: Fix kconfig warning due to a typo\n tracing: Provide trace events interface for uprobes\n tracing: Extract out common code for kprobes/uprobes trace events\n tracing: Modify is_delete, is_return from int to bool\n uprobes/core: Decrement uprobe count before the pages are unmapped\n uprobes/core: Make background page replacement logic account for rss_stat counters\n uprobes/core: Optimize probe hits with the help of a counter\n uprobes/core: Allocate XOL slots for uprobes use\n uprobes/core: Handle breakpoint and singlestep exceptions\n uprobes/core: Rename bkpt to swbp\n uprobes/core: Make order of function parameters consistent across functions\n uprobes/core: Make macro names consistent\n uprobes: Update copyright notices\n uprobes/core: Move insn to arch specific structure\n uprobes/core: Remove uprobe_opcode_sz\n uprobes/core: Make instruction tables volatile\n uprobes: Move to kernel/events/\n uprobes/core: Clean up, refactor and improve the code\n ...\n" }, { "commit": "ab11ca34eea8fda7a1a9302d86f6ef6108ffd68f", "tree": "987ec6c263f3dfa4a7a6f9ce4d5ece47cbc12e29", "parents": [ "f9369910a6225b8d4892c3f20ae740a711cd5ace", "71006fb22b0f5a2045605b3887ee99a0e9adafe4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 10:21:51 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 24 10:21:51 2012 -0700" }, "message": "Merge branch \u0027v4l_for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media\n\nPull media updates from Mauro Carvalho Chehab:\n - some V4L2 API updates needed by embedded devices\n - DVB API extensions for ATSC-MH delivery system, used in US for mobile\n TV\n - new tuners for fc0011/0012/0013 and tua9001\n - a new dvb driver for af9033/9035\n - a new ATSC-MH frontend (lg2160)\n - new remote controller keymaps\n - Removal of a few legacy webcam driver that got replaced by gspca on\n several kernel versions ago\n - a new driver for Exynos 4/5 webcams(s5pp fimc-lite)\n - a new webcam sensor driver (smiapp)\n - a new video input driver for embedded (sta2x1xx)\n - several improvements, fixes, cleanups, etc inside the drivers.\n\nManually fix up conflicts due to err() -\u003e dev_err() conversion in\ndrivers/staging/media/easycap/easycap_main.c\n\n* \u0027v4l_for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (484 commits)\n [media] saa7134-cards: Remove a PCI entry added by mistake\n [media] radio-sf16fmi: add support for SF16-FMD\n [media] rc-loopback: remove duplicate line\n [media] patch for Asus My Cinema PS3-100 (1043:48cd)\n [media] au0828: Move the Kconfig knob under V4L_USB_DRIVERS\n [media] em28xx: simple comment fix\n [media] [resend] radio-sf16fmr2: add PnP support for SF16-FMD2\n [media] smiapp: Use v4l2_ctrl_new_int_menu() instead of v4l2_ctrl_new_custom()\n [media] smiapp: Add support for 8-bit uncompressed formats\n [media] smiapp: Allow generic quirk registers\n [media] smiapp: Use non-binning limits if the binning limit is zero\n [media] smiapp: Initialise rval in smiapp_read_nvm()\n [media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check\n [media] smiapp: Use 8-bit reads only before identifying the sensor\n [media] smiapp: Quirk for sensors that only do 8-bit reads\n [media] smiapp: Pass struct sensor to register writing commands instead of i2c_client\n [media] smiapp: Allow using external clock from the clock framework\n [media] zl10353: change .read_snr() to report SNR as a 0.1 dB\n [media] media: add support to gspca/pac7302.c for 093a:2627 (Genius FaceCam 300)\n [media] m88rs2000 - only flip bit 2 on reg 0x70 on 16th try\n ...\n" }, { "commit": "9ba0541453b3a57797701b9fbc0fd8d0be173050", "tree": "29cc15e3d9b05d78f8adb8516baf6c1a3d7626a9", "parents": [ "f9369910a6225b8d4892c3f20ae740a711cd5ace", "6a31e1f135d1abfb5137697f889c8cd5d72eb522" ], "author": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Thu May 24 09:06:24 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Thu May 24 09:06:24 2012 +0200" }, "message": "Merge branch \u0027tip/perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent\n\nPull an ftrace ring-buffer fix from Steve Rostedt:\n\n * fix kernel crash when changing the size of the ring-buffer on\n boxes where possible_cpus !\u003d online_cpus.\n\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "31fe62b9586643953f0c0c37a6357dafc69034e2", "tree": "69f9990423969df4ecbaea9d1e8de748284bea5e", "parents": [ "d0a24a3516fb36023bef28d2355fa34e7f32029f" ], "author": { "name": "Tim Bird", "email": "tim.bird@am.sony.com", "time": "Wed May 23 13:33:35 2012 +0000" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Thu May 24 00:28:21 2012 -0400" }, "message": "mm: add a low limit to alloc_large_system_hash\n\nUDP stack needs a minimum hash size value for proper operation and also\nuses alloc_large_system_hash() for proper NUMA distribution of its hash\ntables and automatic sizing depending on available system memory.\n\nOn some low memory situations, udp_table_init() must ignore the\nalloc_large_system_hash() result and reallocs a bigger memory area.\n\nAs we cannot easily free old hash table, we leak it and kmemleak can\nissue a warning.\n\nThis patch adds a low limit parameter to alloc_large_system_hash() to\nsolve this problem.\n\nWe then specify UDP_HTABLE_SIZE_MIN for UDP/UDPLite hash table\nallocation.\n\nReported-by: Mark Asselstine \u003cmark.asselstine@windriver.com\u003e\nReported-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nSigned-off-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "f23ca335462e3c84f13270b9e65f83936068ec2c", "tree": "f0df939f9906c28267c930554223720a82241c71", "parents": [ "dea649b8ac1861107c5d91e1a71121434fc64193" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri May 11 10:59:09 2012 +1000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed May 23 22:11:41 2012 -0400" }, "message": "keys: kill task_struct-\u003ereplacement_session_keyring\n\nKill the no longer used task_struct-\u003ereplacement_session_keyring, update\ncopy_creds() and exit_creds().\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Richard Kuo \u003crkuo@codeaurora.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Alexander Gordeev \u003cagordeev@redhat.com\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: David Smith \u003cdsmith@redhat.com\u003e\nCc: \"Frank Ch. Eigler\" \u003cfche@redhat.com\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "4d1d61a6b203d957777d73fcebf19d90b038b5b2", "tree": "8b597fa00168ee59e3abf5ec8cf4e92f8fd28d8a", "parents": [ "e73f8959af0439d114847eab5a8a5ce48f1217c4" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri May 11 10:59:08 2012 +1000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed May 23 22:11:12 2012 -0400" }, "message": "genirq: reimplement exit_irq_thread() hook via task_work_add()\n\nexit_irq_thread() and task-\u003eirq_thread are needed to handle the unexpected\n(and unlikely) exit of irq-thread.\n\nWe can use task_work instead and make this all private to\nkernel/irq/manage.c, cleanup plus micro-optimization.\n\n1. rename exit_irq_thread() to irq_thread_dtor(), make it\n static, and move it up before irq_thread().\n\n2. change irq_thread() to do task_work_add(irq_thread_dtor)\n at the start and task_work_cancel() before return.\n\n tracehook_notify_resume() can never play with kthreads,\n only do_exit()-\u003eexit_task_work() can call the callback\n and this is what we want.\n\n3. remove task_struct-\u003eirq_thread and the special hook\n in do_exit().\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nReviewed-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Richard Kuo \u003crkuo@codeaurora.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Alexander Gordeev \u003cagordeev@redhat.com\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: David Smith \u003cdsmith@redhat.com\u003e\nCc: \"Frank Ch. Eigler\" \u003cfche@redhat.com\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "e73f8959af0439d114847eab5a8a5ce48f1217c4", "tree": "47f056093590a5e5552e3a75f163e1f798063bda", "parents": [ "62366c88b29c5a32e1531142092f98eaf49b1103" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri May 11 10:59:07 2012 +1000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed May 23 22:09:21 2012 -0400" }, "message": "task_work_add: generic process-context callbacks\n\nProvide a simple mechanism that allows running code in the (nonatomic)\ncontext of the arbitrary task.\n\nThe caller does task_work_add(task, task_work) and this task executes\ntask_work-\u003efunc() either from do_notify_resume() or from do_exit(). The\ncallback can rely on PF_EXITING to detect the latter case.\n\n\"struct task_work\" can be embedded in another struct, still it has \"void\n*data\" to handle the most common/simple case.\n\nThis allows us to kill the -\u003ereplacement_session_keyring hack, and\npotentially this can have more users.\n\nPerformance-wise, this adds 2 \"unlikely(!hlist_empty())\" checks into\ntracehook_notify_resume() and do_exit(). But at the same time we can\nremove the \"replacement_session_keyring !\u003d NULL\" checks from\narch/*/signal.c and exit_creds().\n\nNote: task_work_add/task_work_run abuses -\u003epi_lock. This is only because\nthis lock is already used by lookup_pi_state() to synchronize with\ndo_exit() setting PF_EXITING. Fortunately the scope of this lock in\ntask_work.c is really tiny, and the code is unlikely anyway.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Richard Kuo \u003crkuo@codeaurora.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Alexander Gordeev \u003cagordeev@redhat.com\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: David Smith \u003cdsmith@redhat.com\u003e\nCc: \"Frank Ch. Eigler\" \u003cfche@redhat.com\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "f9369910a6225b8d4892c3f20ae740a711cd5ace", "tree": "8650ff79d7607bceb35509c028400ecf1c317de0", "parents": [ "05f144a0d5c2207a0349348127f996e104ad7404", "415d04d08fec74b226c92c1fb54ad117c9c6bac4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 18:11:45 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 18:11:45 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal\n\nPull first series of signal handling cleanups from Al Viro:\n \"This is just the first part of the queue (about a half of it);\n assorted fixes all over the place in signal handling.\n\n This one ends with all sigsuspend() implementations switched to\n generic one (-\u003esaved_sigmask-based).\n\n With this, a bunch of assorted old buglets are fixed and most of the\n missing bits of NOTIFY_RESUME hookup are in place. Two more fixes sit\n in arm and um trees respectively, and there\u0027s a couple of broken ones\n that need obvious fixes - parisc and avr32 check TIF_NOTIFY_RESUME\n only on one of two codepaths; fixes for that will happen in the next\n series\"\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (55 commits)\n unicore32: if there\u0027s no handler we need to restore sigmask, syscall or no syscall\n xtensa: add handling of TIF_NOTIFY_RESUME\n microblaze: drop \u0027oldset\u0027 argument of do_notify_resume()\n microblaze: handle TIF_NOTIFY_RESUME\n score: add handling of NOTIFY_RESUME to do_notify_resume()\n m68k: add TIF_NOTIFY_RESUME and handle it.\n sparc: kill ancient comment in sparc_sigaction()\n h8300: missing checks of __get_user()/__put_user() return values\n frv: missing checks of __get_user()/__put_user() return values\n cris: missing checks of __get_user()/__put_user() return values\n powerpc: missing checks of __get_user()/__put_user() return values\n sh: missing checks of __get_user()/__put_user() return values\n sparc: missing checks of __get_user()/__put_user() return values\n avr32: struct old_sigaction is never used\n m32r: struct old_sigaction is never used\n xtensa: xtensa_sigaction doesn\u0027t exist\n alpha: tidy signal delivery up\n score: don\u0027t open-code force_sigsegv()\n cris: don\u0027t open-code force_sigsegv()\n blackfin: don\u0027t open-code force_sigsegv()\n ...\n" }, { "commit": "644473e9c60c1ff4f6351fed637a6e5551e3dce7", "tree": "10316518bedc735a2c6552886658d69dfd9f1eb0", "parents": [ "fb827ec68446c83e9e8754fa9b55aed27ecc4661", "4b06a81f1daee668fbd6de85557bfb36dd36078f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 17:42:39 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 17:42:39 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace\n\nPull user namespace enhancements from Eric Biederman:\n \"This is a course correction for the user namespace, so that we can\n reach an inexpensive, maintainable, and reasonably complete\n implementation.\n\n Highlights:\n - Config guards make it impossible to enable the user namespace and\n code that has not been converted to be user namespace safe.\n\n - Use of the new kuid_t type ensures the if you somehow get past the\n config guards the kernel will encounter type errors if you enable\n user namespaces and attempt to compile in code whose permission\n checks have not been updated to be user namespace safe.\n\n - All uids from child user namespaces are mapped into the initial\n user namespace before they are processed. Removing the need to add\n an additional check to see if the user namespace of the compared\n uids remains the same.\n\n - With the user namespaces compiled out the performance is as good or\n better than it is today.\n\n - For most operations absolutely nothing changes performance or\n operationally with the user namespace enabled.\n\n - The worst case performance I could come up with was timing 1\n billion cache cold stat operations with the user namespace code\n enabled. This went from 156s to 164s on my laptop (or 156ns to\n 164ns per stat operation).\n\n - (uid_t)-1 and (gid_t)-1 are reserved as an internal error value.\n Most uid/gid setting system calls treat these value specially\n anyway so attempting to use -1 as a uid would likely cause\n entertaining failures in userspace.\n\n - If setuid is called with a uid that can not be mapped setuid fails.\n I have looked at sendmail, login, ssh and every other program I\n could think of that would call setuid and they all check for and\n handle the case where setuid fails.\n\n - If stat or a similar system call is called from a context in which\n we can not map a uid we lie and return overflowuid. The LFS\n experience suggests not lying and returning an error code might be\n better, but the historical precedent with uids is different and I\n can not think of anything that would break by lying about a uid we\n can\u0027t map.\n\n - Capabilities are localized to the current user namespace making it\n safe to give the initial user in a user namespace all capabilities.\n\n My git tree covers all of the modifications needed to convert the core\n kernel and enough changes to make a system bootable to runlevel 1.\"\n\nFix up trivial conflicts due to nearby independent changes in fs/stat.c\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (46 commits)\n userns: Silence silly gcc warning.\n cred: use correct cred accessor with regards to rcu read lock\n userns: Convert the move_pages, and migrate_pages permission checks to use uid_eq\n userns: Convert cgroup permission checks to use uid_eq\n userns: Convert tmpfs to use kuid and kgid where appropriate\n userns: Convert sysfs to use kgid/kuid where appropriate\n userns: Convert sysctl permission checks to use kuid and kgids.\n userns: Convert proc to use kuid/kgid where appropriate\n userns: Convert ext4 to user kuid/kgid where appropriate\n userns: Convert ext3 to use kuid/kgid where appropriate\n userns: Convert ext2 to use kuid/kgid where appropriate.\n userns: Convert devpts to use kuid/kgid where appropriate\n userns: Convert binary formats to use kuid/kgid where appropriate\n userns: Add negative depends on entries to avoid building code that is userns unsafe\n userns: signal remove unnecessary map_cred_ns\n userns: Teach inode_capable to understand inodes whose uids map to other namespaces.\n userns: Fail exec for suid and sgid binaries with ids outside our user namespace.\n userns: Convert stat to return values mapped from kuids and kgids\n userns: Convert user specfied uids and gids in chown into kuids and kgid\n userns: Use uid_eq gid_eq helpers when comparing kuids and kgids in the vfs\n ...\n" }, { "commit": "fb827ec68446c83e9e8754fa9b55aed27ecc4661", "tree": "e953aedce01fa1c90a8e7b591e40310c3c1e7447", "parents": [ "d5b4bb4d103cd601d8009f2d3a7e44586c9ae7cc", "ef26a5a6eadb7cd0637e1e9e246cd42505b8ec8c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 17:34:09 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 17:34:09 2012 -0700" }, "message": "Merge tag \u0027module-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus\n\nPull module patches from Rusty Russell, who really sells them:\n \"Three trivial patches of no real utility. Modules are boring.\"\n\nBut to make things slightly more exciting, he adds:\n \"Fortunately David Howells is looking to change this, with his module\n signing patchset. But that\u0027s for next merge window...\n\n Cheers,\n Rusty.\"\n\n* tag \u0027module-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:\n Guard check in module loader against integer overflow\n modpost: use proper kernel style for autogenerated files\n modpost: Stop grab_file() from leaking filedescriptors if fstat() fails\n" }, { "commit": "468f4d1a855f8039dabf441b8bf68cae264033ff", "tree": "303ac5bc1ac3f86f136a30f9356e84f20dcbf13f", "parents": [ "eb2689e06b3526c7684b09beecf26070f05ee825", "8714c8d74d313c3ba27bf9c2aaacb1ad71c644f8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 14:07:06 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 14:07:06 2012 -0700" }, "message": "Merge tag \u0027pm-for-3.5\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm\n\nPull power management updates from Rafael Wysocki:\n\n - Implementation of opportunistic suspend (autosleep) and user space\n interface for manipulating wakeup sources.\n\n - Hibernate updates from Bojan Smojver and Minho Ban.\n\n - Updates of the runtime PM core and generic PM domains framework\n related to PM QoS.\n\n - Assorted fixes.\n\n* tag \u0027pm-for-3.5\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits)\n epoll: Fix user space breakage related to EPOLLWAKEUP\n PM / Domains: Make it possible to add devices to inactive domains\n PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format\n PM / Domains: Fix computation of maximum domain off time\n PM / Domains: Fix link checking when add subdomain\n PM / Sleep: User space wakeup sources garbage collector Kconfig option\n PM / Sleep: Make the limit of user space wakeup sources configurable\n PM / Documentation: suspend-and-cpuhotplug.txt: Fix typo\n PM / Domains: Cache device stop and domain power off governor results, v3\n PM / Domains: Make device removal more straightforward\n PM / Sleep: Fix a mistake in a conditional in autosleep_store()\n epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready\n PM / QoS: Create device constraints objects on notifier registration\n PM / Runtime: Remove device fields related to suspend time, v2\n PM / Domains: Rework default domain power off governor function, v2\n PM / Domains: Rework default device stop governor function, v2\n PM / Sleep: Add user space interface for manipulating wakeup sources, v3\n PM / Sleep: Add \"prevent autosleep time\" statistics to wakeup sources\n PM / Sleep: Implement opportunistic sleep, v2\n PM / Sleep: Add wakeup_source_activate and wakeup_source_deactivate tracepoints\n ...\n" }, { "commit": "6a31e1f135d1abfb5137697f889c8cd5d72eb522", "tree": "aa7de2d77705955a2f5c290b34c54104ada9ad8b", "parents": [ "73787190d04a34e6da745da893b3ae8bedde418f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed May 23 15:35:17 2012 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed May 23 15:35:17 2012 -0400" }, "message": "ring-buffer: Check for valid buffer before changing size\n\nOn some machines the number of possible CPUS is not the same as the\nnumber of CPUs that is on the machine. Ftrace uses possible_cpus to\nupdate the tracing structures but the ring buffer only allocates\nper cpu buffers for online CPUs when they come up.\n\nWhen the wakeup tracer was enabled in such a case, the ftrace code\nenabled all possible cpu buffers, but the code in ring_buffer_resize()\ndid not check to see if the buffer in question was allocated. Since\nboot up CPUs did not match possible CPUs it caused the following\ncrash:\n\nBUG: unable to handle kernel NULL pointer dereference at 00000020\nIP: [\u003cc1097851\u003e] ring_buffer_resize+0x16a/0x28d\n*pde \u003d 00000000\nOops: 0000 [#1] PREEMPT SMP\nDumping ftrace buffer:\n (ftrace buffer empty)\nModules linked in: [last unloaded: scsi_wait_scan]\n\nPid: 1387, comm: bash Not tainted 3.4.0-test+ #13 /DG965MQ\nEIP: 0060:[\u003cc1097851\u003e] EFLAGS: 00010217 CPU: 0\nEIP is at ring_buffer_resize+0x16a/0x28d\nEAX: f5a14340 EBX: f6026b80 ECX: 00000ff4 EDX: 00000ff3\nESI: 00000000 EDI: 00000002 EBP: f4275ecc ESP: f4275eb0\n DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068\nCR0: 80050033 CR2: 00000020 CR3: 34396000 CR4: 000007d0\nDR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000\nDR6: ffff0ff0 DR7: 00000400\nProcess bash (pid: 1387, ti\u003df4274000 task\u003df4380cb0 task.ti\u003df4274000)\nStack:\n c109cf9a f6026b98 00000162 00160f68 00000006 00160f68 00000002 f4275ef0\n c109d013 f4275ee8 c123b72a c1c0bf00 c1cc81dc 00000005 f4275f98 00000007\n f4275f70 c109d0c7 7700000e 75656b61 00000070 f5e90900 f5c4e198 00000301\nCall Trace:\n [\u003cc109cf9a\u003e] ? tracing_set_tracer+0x115/0x1e9\n [\u003cc109d013\u003e] tracing_set_tracer+0x18e/0x1e9\n [\u003cc123b72a\u003e] ? _copy_from_user+0x30/0x46\n [\u003cc109d0c7\u003e] tracing_set_trace_write+0x59/0x7f\n [\u003cc10ec01e\u003e] ? fput+0x18/0x1c6\n [\u003cc11f8732\u003e] ? security_file_permission+0x27/0x2b\n [\u003cc10eaacd\u003e] ? rw_verify_area+0xcf/0xf2\n [\u003cc10ec01e\u003e] ? fput+0x18/0x1c6\n [\u003cc109d06e\u003e] ? tracing_set_tracer+0x1e9/0x1e9\n [\u003cc10ead77\u003e] vfs_write+0x8b/0xe3\n [\u003cc10ebead\u003e] ? fget_light+0x30/0x81\n [\u003cc10eaf54\u003e] sys_write+0x42/0x63\n [\u003cc1834fbf\u003e] sysenter_do_call+0x12/0x28\n\nThis happens with the latency tracer as the ftrace code updates the\nsaved max buffer via its cpumask and not with a global setting.\n\nAdding a check in ring_buffer_resize() to make sure the buffer being resized\nexists, fixes the problem.\n\nCc: Vaibhav Nagarnaik \u003cvnagarnaik@google.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "56edab315927d2a5ae6064b9fc083236a6fc278f", "tree": "1b00b00033d769d6039448b6d8feffcf86b06088", "parents": [ "3813d4024a75562baf77d3907fb6afbf8f9c8232", "5bcdf5e4fee3c45e1281c25e4941f2163cb28c65", "ab0cce560ef177bdc7a8f73e9962be9d829a7b2c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 12:12:49 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 12:12:49 2012 -0700" }, "message": "Merge branches \u0027perf-urgent-for-linus\u0027 and \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull perf fixes from Ingo Molnar:\n\n - Leftover AMD PMU driver fix fix from the end of the v3.4\n stabilization cycle.\n\n - Late tools/perf/ changes that missed the first round:\n * endianness fixes\n * event parsing improvements\n * libtraceevent fixes factored out from trace-cmd\n * perl scripting engine fixes related to libtraceevent,\n * testcase improvements\n * perf inject / pipe mode fixes\n * plus a kernel side fix\n\n* \u0027perf-urgent-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n perf/x86: Update event scheduling constraints for AMD family 15h models\n\n* \u0027perf-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n Revert \"sched, perf: Use a single callback into the scheduler\"\n perf evlist: Show event attribute details\n perf tools: Bump default sample freq to 4 kHz\n perf buildid-list: Work better with pipe mode\n perf tools: Fix piped mode read code\n perf inject: Fix broken perf inject -b\n perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA\n perf tools: Add union u64_swap type for swapping u64 data\n perf tools: Carry perf_event_attr bitfield throught different endians\n perf record: Fix documentation for branch stack sampling\n perf target: Add cpu flag to sample_type if target has cpu\n perf tools: Always try to build libtraceevent\n perf tools: Rename libparsevent to libtraceevent in Makefile\n perf script: Rename struct event to struct event_format in perl engine\n perf script: Explicitly handle known default print arg type\n perf tools: Add hardcoded name term for pmu events\n perf tools: Separate \u0027mem:\u0027 event scanner bits\n perf tools: Use allocated list for each parsed event\n perf tools: Add support for displaying event parser debug info\n perf test: Move parse event automated tests to separated object\n" }, { "commit": "ec0d7f18ab7b5097d7c0c8f3d909ca1031b9d5cd", "tree": "7d62c924592145f819ecaa5d60460a05a10dfdbd", "parents": [ "269af9a1a08d368b46d72e74126564d04c354f7e", "1dcc8d7ba235a316a056f993e88f0d18b92c60d9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 10:59:07 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 10:59:07 2012 -0700" }, "message": "Merge branch \u0027x86-fpu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull fpu state cleanups from Ingo Molnar:\n \"This tree streamlines further aspects of FPU handling by eliminating\n the prepare_to_copy() complication and moving that logic to\n arch_dup_task_struct().\n\n It also fixes the FPU dumps in threaded core dumps, removes and old\n (and now invalid) assumption plus micro-optimizes the exit path by\n avoiding an FPU save for dead tasks.\"\n\nFixed up trivial add-add conflict in arch/sh/kernel/process.c that came\nin because we now do the FPU handling in arch_dup_task_struct() rather\nthan the legacy (and now gone) prepare_to_copy().\n\n* \u0027x86-fpu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n x86, fpu: drop the fpu state during thread exit\n x86, xsave: remove thread_has_fpu() bug check in __sanitize_i387_state()\n coredump: ensure the fpu state is flushed for proper multi-threaded core dump\n fork: move the real prepare_to_copy() users to arch_dup_task_struct()\n" }, { "commit": "269af9a1a08d368b46d72e74126564d04c354f7e", "tree": "f0f2a8dd54075edebbb728602822e2b7378588d0", "parents": [ "8ca038dc10eec80f280d9d483f1835ac2763a787", "8b5ad472991796b2347464922c72de2ca5a028f3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 10:44:35 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 10:44:35 2012 -0700" }, "message": "Merge branch \u0027x86-extable-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull exception table generation updates from Ingo Molnar:\n \"The biggest change here is to allow the build-time sorting of the\n exception table, to speed up booting. This is achieved by the\n architecture enabling BUILDTIME_EXTABLE_SORT. This option is enabled\n for x86 and MIPS currently.\n\n On x86 a number of fixes and changes were needed to allow build-time\n sorting of the exception table, in particular a relocation invariant\n exception table format was needed. This required the abstracting out\n of exception table protocol and the removal of 20 years of accumulated\n assumptions about the x86 exception table format.\n\n While at it, this tree also cleans up various other aspects of\n exception handling, such as early(er) exception handling for\n rdmsr_safe() et al.\n\n All in one, as the result of these changes the x86 exception code is\n now pretty nice and modern. As an added bonus any regressions in this\n code will be early and violent crashes, so if you see any of those,\n you\u0027ll know whom to blame!\"\n\nFix up trivial conflicts in arch/{mips,x86}/Kconfig files due to nearby\nmodifications of other core architecture options.\n\n* \u0027x86-extable-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits)\n Revert \"x86, extable: Disable presorted exception table for now\"\n scripts/sortextable: Handle relative entries, and other cleanups\n x86, extable: Switch to relative exception table entries\n x86, extable: Disable presorted exception table for now\n x86, extable: Add _ASM_EXTABLE_EX() macro\n x86, extable: Remove open-coded exception table entries in arch/x86/ia32/ia32entry.S\n x86, extable: Remove open-coded exception table entries in arch/x86/include/asm/xsave.h\n x86, extable: Remove open-coded exception table entries in arch/x86/include/asm/kvm_host.h\n x86, extable: Remove the now-unused __ASM_EX_SEC macros\n x86, extable: Remove open-coded exception table entries in arch/x86/xen/xen-asm_32.S\n x86, extable: Remove open-coded exception table entries in arch/x86/um/checksum_32.S\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/usercopy_32.c\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/putuser.S\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/getuser.S\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/csum-copy_64.S\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/copy_user_nocache_64.S\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/copy_user_64.S\n x86, extable: Remove open-coded exception table entries in arch/x86/lib/checksum_32.S\n x86, extable: Remove open-coded exception table entries in arch/x86/kernel/test_rodata.c\n x86, extable: Remove open-coded exception table entries in arch/x86/kernel/entry_64.S\n ...\n" }, { "commit": "3a8580f82024e30b31c662aa49346adf7a3bcdb5", "tree": "7769a01f152b4081f4e4225e499082fd5c67b184", "parents": [ "1d767cae4dbd4116fc3b2cc3251a20760f98339f", "2ccf62b36097aa88e0ea152d6ef0c0ca2d3884e6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 09:01:41 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 23 09:01:41 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml\n\nPull UML updates from Richard Weinberger:\n \"Most changes are bug fixes and cleanups\"\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:\n um: missing checks of __put_user()/__get_user() return values\n um: stub_rt_sigsuspend isn\u0027t needed these days anymore\n um/x86: merge (and trim) 32- and 64-bit variants of ptrace.h\n irq: Remove irq_chip-\u003erelease()\n um: Remove CONFIG_IRQ_RELEASE_METHOD\n um: Remove usage of irq_chip-\u003erelease()\n um: Implement um_free_irq()\n um: Fix __swp_type()\n um: Implement a custom pte_same() function\n um: Add BUG() to do_ops()\u0027s error path\n um: Remove unused variables\n um: bury unused _TIF_RESTORE_SIGMASK\n um: wrong sigmask saved in case of multiple sigframes\n um: add TIF_NOTIFY_RESUME\n um: -\u003erestart_block.fn needs to be reset on sigreturn\n" }, { "commit": "ab0cce560ef177bdc7a8f73e9962be9d829a7b2c", "tree": "d9875b21c42862201624eb7d9ea2c36f4ea4035d", "parents": [ "26252ea675663d1bc6747125fcaa2b7cc4ed8a03" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Wed May 23 13:13:02 2012 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@kernel.org", "time": "Wed May 23 17:40:51 2012 +0200" }, "message": "Revert \"sched, perf: Use a single callback into the scheduler\"\n\nThis reverts commit cb04ff9ac424 (\"sched, perf: Use a single\ncallback into the scheduler\").\n\nBefore this change was introduced, the process switch worked\nlike this (wrt. to perf event schedule):\n\n schedule (prev, next)\n - schedule out all perf events for prev\n - switch to next\n - schedule in all perf events for current (next)\n\nAfter the commit, the process switch looks like:\n\n schedule (prev, next)\n - schedule out all perf events for prev\n - schedule in all perf events for (next)\n - switch to next\n\nThe problem is, that after we schedule perf events in, the pmu\nis enabled and we can receive events even before we make the\nswitch to next - so \"current\" still being prev process (event\nSAMPLE data are filled based on the value of the \"current\"\nprocess).\n\nThats exactly what we see for test__PERF_RECORD test. We receive\nSAMPLES with PID of the process that our tracee is scheduled\nfrom.\n\nDiscussed with Peter Zijlstra:\n\n \u003e Bah!, yeah I guess reverting is the right thing for now. Sad\n \u003e though.\n \u003e\n \u003e So by having the two hooks we have a black-spot between them\n \u003e where we receive no events at all, this black-spot covers the\n \u003e hand-over of current and we thus don\u0027t receive the \u0027wrong\u0027\n \u003e events.\n \u003e\n \u003e I rather liked we could do away with both that black-spot and\n \u003e clean up the code a little, but apparently people rely on it.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: acme@redhat.com\nCc: paulus@samba.org\nCc: cjashfor@linux.vnet.ibm.com\nCc: fweisbec@gmail.com\nCc: eranian@google.com\nLink: http://lkml.kernel.org/r/20120523111302.GC1638@m.brq.redhat.com\nSigned-off-by: Ingo Molnar \u003cmingo@kernel.org\u003e\n" }, { "commit": "ef26a5a6eadb7cd0637e1e9e246cd42505b8ec8c", "tree": "94f8b1998d94080a842f94529f0d95cfe1bcc53a", "parents": [ "3c7ec94d2c4a67d9663a080aa5080134308261c4" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue May 22 15:56:13 2012 +0100" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Wed May 23 22:28:53 2012 +0930" }, "message": "Guard check in module loader against integer overflow\n\nThe check:\n\n\tif (len \u003c hdr-\u003ee_shoff + hdr-\u003ee_shnum * sizeof(Elf_Shdr))\n\nmay not work if there\u0027s an overflow in the right-hand side of the condition.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "e8650a08232e75274304b812ff04cfce9af9671c", "tree": "0609c942e6ca99016e788ff2ee2bbed1bb9215a4", "parents": [ "3c2c4b73aa79e4a1b601710b59e092441175f4bb", "f70d4a95edc7da87f39cd8b603ba131df2c198ed" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 22 19:22:50 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 22 19:22:50 2012 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\nPull trivial updates from Jiri Kosina:\n \"As usual, it\u0027s mostly typo fixes, redundant code elimination and some\n documentation updates.\"\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)\n edac, mips: don\u0027t change code that has been removed in edac/mips tree\n xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer\n lib: Change mail address of Oskar Schirmer\n net: Change mail address of Oskar Schirmer\n arm/m68k: Change mail address of Sebastian Hess\n i2c: Change mail address of Oskar Schirmer\n net: Fix tcp_build_and_update_options comment in struct tcp_sock\n atomic64_32.h: fix parameter naming mismatch\n Kconfig: replace \"--- help ---\" with \"---help---\"\n c2port: fix bogus Kconfig \"default no\"\n edac: Fix spelling errors.\n qla1280: Remove redundant NULL check before release_firmware() call\n remoteproc: remove redundant NULL check before release_firmware()\n qla2xxx: Remove redundant NULL check before release_firmware() call.\n aic94xx: Get rid of redundant NULL check before release_firmware() call\n tehuti: delete redundant NULL check before release_firmware()\n qlogic: get rid of a redundant test for NULL before call to release_firmware()\n bna: remove redundant NULL test before release_firmware()\n tg3: remove redundant NULL test before release_firmware() call\n typhoon: get rid of redundant conditional before all to release_firmware()\n ...\n" }, { "commit": "d79ee93de909dfb252279b9a95978bbda9a814a9", "tree": "bfccca60fd36259ff4bcc5e78a2c272fbd680065", "parents": [ "2ff2b289a695807e291e1ed9f639d8a3ba5f4254", "1c2927f18576d65631d8e0ddd19e1d023183222e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 22 18:27:32 2012 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 22 18:27:32 2012 -0700" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip\n\nPull scheduler changes from Ingo Molnar:\n \"The biggest change is the cleanup/simplification of the load-balancer:\n instead of the current practice of architectures twiddling scheduler\n internal data structures and providing the scheduler domains in\n colorfully inconsistent ways, we now have generic scheduler code in\n kernel/sched/core.c:sched_init_numa() that looks at the architecture\u0027s\n node_distance() parameters and (while not fully trusting it) deducts a\n NUMA topology from it.\n\n This inevitably changes balancing behavior - hopefully for the better.\n\n There are various smaller optimizations, cleanups and fixlets as well\"\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:\n sched: Taint kernel with TAINT_WARN after sleep-in-atomic bug\n sched: Remove stale power aware scheduling remnants and dysfunctional knobs\n sched/debug: Fix printing large integers on 32-bit platforms\n sched/fair: Improve the -\u003egroup_imb logic\n sched/nohz: Fix rq-\u003ecpu_load[] calculations\n sched/numa: Don\u0027t scale the imbalance\n sched/fair: Revert sched-domain iteration breakage\n sched/x86: Rewrite set_cpu_sibling_map()\n sched/numa: Fix the new NUMA topology bits\n sched/numa: Rewrite the CONFIG_NUMA sched domain support\n sched/fair: Propagate \u0027struct lb_env\u0027 usage into find_busiest_group\n sched/fair: Add some serialization to the sched_domain load-balance walk\n sched/fair: Let minimally loaded cpu balance the group\n sched: Change rq-\u003enr_running to unsigned int\n x86/numa: Check for nonsensical topologies on real hw as well\n x86/numa: Hard partition cpu topology masks on node boundaries\n x86/numa: Allow specifying node_distance() for numa\u003dfake\n x86/sched: Make mwait_usable() heed to \"idle\u003d\" kernel parameters properly\n sched: Update documentation and comments\n sched_rt: Avoid unnecessary dequeue and enqueue of pushable tasks in set_cpus_allowed_rt()\n" } ], "next": "2ff2b289a695807e291e1ed9f639d8a3ba5f4254" }