)]}' { "log": [ { "commit": "fe21773d655c2c64641ec2cef499289ea175c817", "tree": "ebc1f49f0b7135aa05bbf3a5463a6e1c238add89", "parents": [ "c3d8c1414573be8cf7c8fdc1e076935697c7f6af" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue Sep 06 15:16:34 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:18 2005 -0700" }, "message": "[PATCH] Provide better printk() support for SMP machines\n\nThe attached patch prevents oopses interleaving with characters from\nother printks on other CPUs by only breaking the lock if the oops is\nhappening on the machine holding the lock.\n\nIt might be better if the oops generator got the lock and then called an\ninner vprintk routine that assumed the caller holds the lock, thus\nmaking oops reports \"atomic\".\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8446f1d391f3d27e6bf9c43d4cbcdac0ca720417", "tree": "738853af877c9a391b4f2db467e7f90c6e2e38ed", "parents": [ "4732efbeb997189d9f9b04708dc26bf8613ed721" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 06 15:16:27 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:17 2005 -0700" }, "message": "[PATCH] detect soft lockups\n\nThis patch adds a new kernel debug feature: CONFIG_DETECT_SOFTLOCKUP.\n\nWhen enabled then per-CPU watchdog threads are started, which try to run\nonce per second. If they get delayed for more than 10 seconds then a\ncallback from the timer interrupt detects this condition and prints out a\nwarning message and a stack dump (once per lockup incident). The feature\nis otherwise non-intrusive, it doesnt try to unlock the box in any way, it\nonly gets the debug info out, automatically, and on all CPUs affected by\nthe lockup.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nSigned-Off-By: Matthias Urlichs \u003csmurf@smurf.noris.de\u003e\nSigned-off-by: Richard Purdie \u003crpurdie@rpsys.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4732efbeb997189d9f9b04708dc26bf8613ed721", "tree": "885308bb2b521e52e13aaa8a67c78b2ab3c18cd8", "parents": [ "5b039e681b8c5f30aac9cc04385cc94be45d0823" ], "author": { "name": "Jakub Jelinek", "email": "jakub@redhat.com", "time": "Tue Sep 06 15:16:25 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:17 2005 -0700" }, "message": "[PATCH] FUTEX_WAKE_OP: pthread_cond_signal() speedup\n\nATM pthread_cond_signal is unnecessarily slow, because it wakes one waiter\n(which at least on UP usually means an immediate context switch to one of\nthe waiter threads). This waiter wakes up and after a few instructions it\nattempts to acquire the cv internal lock, but that lock is still held by\nthe thread calling pthread_cond_signal. So it goes to sleep and eventually\nthe signalling thread is scheduled in, unlocks the internal lock and wakes\nthe waiter again.\n\nNow, before 2003-09-21 NPTL was using FUTEX_REQUEUE in pthread_cond_signal\nto avoid this performance issue, but it was removed when locks were\nredesigned to the 3 state scheme (unlocked, locked uncontended, locked\ncontended).\n\nFollowing scenario shows why simply using FUTEX_REQUEUE in\npthread_cond_signal together with using lll_mutex_unlock_force in place of\nlll_mutex_unlock is not enough and probably why it has been disabled at\nthat time:\n\nThe number is value in cv-\u003e__data.__lock.\n thr1 thr2 thr3\n0 pthread_cond_wait\n1 lll_mutex_lock (cv-\u003e__data.__lock)\n0 lll_mutex_unlock (cv-\u003e__data.__lock)\n0 lll_futex_wait (\u0026cv-\u003e__data.__futex, futexval)\n0 pthread_cond_signal\n1 lll_mutex_lock (cv-\u003e__data.__lock)\n1 pthread_cond_signal\n2 lll_mutex_lock (cv-\u003e__data.__lock)\n2 lll_futex_wait (\u0026cv-\u003e__data.__lock, 2)\n2 lll_futex_requeue (\u0026cv-\u003e__data.__futex, 0, 1, \u0026cv-\u003e__data.__lock)\n # FUTEX_REQUEUE, not FUTEX_CMP_REQUEUE\n2 lll_mutex_unlock_force (cv-\u003e__data.__lock)\n0 cv-\u003e__data.__lock \u003d 0\n0 lll_futex_wake (\u0026cv-\u003e__data.__lock, 1)\n1 lll_mutex_lock (cv-\u003e__data.__lock)\n0 lll_mutex_unlock (cv-\u003e__data.__lock)\n # Here, lll_mutex_unlock doesn\u0027t know there are threads waiting\n # on the internal cv\u0027s lock\n\nNow, I believe it is possible to use FUTEX_REQUEUE in pthread_cond_signal,\nbut it will cost us not one, but 2 extra syscalls and, what\u0027s worse, one of\nthese extra syscalls will be done for every single waiting loop in\npthread_cond_*wait.\n\nWe would need to use lll_mutex_unlock_force in pthread_cond_signal after\nrequeue and lll_mutex_cond_lock in pthread_cond_*wait after lll_futex_wait.\n\nAnother alternative is to do the unlocking pthread_cond_signal needs to do\n(the lock can\u0027t be unlocked before lll_futex_wake, as that is racy) in the\nkernel.\n\nI have implemented both variants, futex-requeue-glibc.patch is the first\none and futex-wake_op{,-glibc}.patch is the unlocking inside of the kernel.\n The kernel interface allows userland to specify how exactly an unlocking\noperation should look like (some atomic arithmetic operation with optional\nconstant argument and comparison of the previous futex value with another\nconstant).\n\nIt has been implemented just for ppc*, x86_64 and i?86, for other\narchitectures I\u0027m including just a stub header which can be used as a\nstarting point by maintainers to write support for their arches and ATM\nwill just return -ENOSYS for FUTEX_WAKE_OP. The requeue patch has been\n(lightly) tested just on x86_64, the wake_op patch on ppc64 kernel running\n32-bit and 64-bit NPTL and x86_64 kernel running 32-bit and 64-bit NPTL.\n\nWith the following benchmark on UP x86-64 I get:\n\nfor i in nptl-orig nptl-requeue nptl-wake_op; do echo time elf/ld.so --library-path .:$i /tmp/bench; \\\nfor j in 1 2; do echo ( time elf/ld.so --library-path .:$i /tmp/bench ) 2\u003e\u00261; done; done\ntime elf/ld.so --library-path .:nptl-orig /tmp/bench\nreal 0m0.655s user 0m0.253s sys 0m0.403s\nreal 0m0.657s user 0m0.269s sys 0m0.388s\ntime elf/ld.so --library-path .:nptl-requeue /tmp/bench\nreal 0m0.496s user 0m0.225s sys 0m0.271s\nreal 0m0.531s user 0m0.242s sys 0m0.288s\ntime elf/ld.so --library-path .:nptl-wake_op /tmp/bench\nreal 0m0.380s user 0m0.176s sys 0m0.204s\nreal 0m0.382s user 0m0.175s sys 0m0.207s\n\nThe benchmark is at:\nhttp://sourceware.org/ml/libc-alpha/2005-03/txt00001.txt\nOlder futex-requeue-glibc.patch version is at:\nhttp://sourceware.org/ml/libc-alpha/2005-03/txt00002.txt\nOlder futex-wake_op-glibc.patch version is at:\nhttp://sourceware.org/ml/libc-alpha/2005-03/txt00003.txt\nWill post a new version (just x86-64 fixes so that the patch\napplies against pthread_cond_signal.S) to libc-hacker ml soon.\n\nAttached is the kernel FUTEX_WAKE_OP patch as well as a simple-minded\ntestcase that will not test the atomicity of the operation, but at least\ncheck if the threads that should have been woken up are woken up and\nwhether the arithmetic operation in the kernel gave the expected results.\n\nAcked-by: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Jamie Lokier \u003cjamie@shareable.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Yoichi Yuasa \u003cyuasa@hh.iij4u.or.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d7ae79c72d072e3208c18ff2dc402a69229b7b1b", "tree": "cdc92d7602d9b93637ff0444910ebe2d2f97ee68", "parents": [ "48c8b1134249432318c8e5d19adc37c45242c4b1" ], "author": { "name": "Pavel Machek", "email": "pavel@suse.cz", "time": "Tue Sep 06 15:16:21 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:16 2005 -0700" }, "message": "[PATCH] swsusp: update documentation\n\nThis updates documentation a bit (mostly removing obsolete stuff), and\nmarks swsusp as no longer experimental in config.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "54d5d42404e7705cf3804593189e963350d470e5", "tree": "7cf8a7fce163b19672193d8cf4ef6a7f6c131d9e", "parents": [ "f63ed39c578a2a2d067356a85ce7c28a7c795d8a" ], "author": { "name": "Ashok Raj", "email": "ashok.raj@intel.com", "time": "Tue Sep 06 15:16:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:15 2005 -0700" }, "message": "[PATCH] x86/x86_64: deferred handling of writes to /proc/irqxx/smp_affinity\n\nWhen handling writes to /proc/irq, current code is re-programming rte\nentries directly. This is not recommended and could potentially cause\nchipset\u0027s to lockup, or cause missing interrupts.\n\nCONFIG_IRQ_BALANCE does this correctly, where it re-programs only when the\ninterrupt is pending. The same needs to be done for /proc/irq handling as well.\nOtherwise user space irq balancers are really not doing the right thing.\n\n- Changed pending_irq_balance_cpumask to pending_irq_migrate_cpumask for\n lack of a generic name.\n- added move_irq out of IRQ_BALANCE, and added this same to X86_64\n- Added new proc handler for write, so we can do deferred write at irq\n handling time.\n- Display of /proc/irq/XX/smp_affinity used to display CPU_MASKALL, instead\n it now shows only active cpu masks, or exactly what was set.\n- Provided a common move_irq implementation, instead of duplicating\n when using generic irq framework.\n\nTested on i386/x86_64 and ia64 with CONFIG_PCI_MSI turned on and off.\nTested UP builds as well.\n\nMSI testing: tbd: I have cards, need to look for a x-over cable, although I\ndid test an earlier version of this patch. Will test in a couple days.\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nAcked-by: Zwane Mwaikambo \u003czwane@holomorphy.com\u003e\nGrudgingly-acked-by: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Coywolf Qi Hunt \u003ccoywolf@lovecn.org\u003e\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ed75e8d58010fdc06e2c3a81bfbebae92314c7e3", "tree": "3f6f8dc5a34c9e03f613d4b907e02802ab075a9e", "parents": [ "94c80b2598dbd2b8a6fe5f5c2c3af1beb37f66c7" ], "author": { "name": "Laurent Vivier", "email": "LaurentVivier@wanadoo.fr", "time": "Sat Sep 03 15:57:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:20 2005 -0700" }, "message": "[PATCH] UML Support - Ptrace: adds the host SYSEMU support, for UML and general usage\n\n Jeff Dike \u003cjdike@addtoit.com\u003e,\n Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade_spam@yahoo.it\u003e,\n Bodo Stroesser \u003cbstroesser@fujitsu-siemens.com\u003e\n\nAdds a new ptrace(2) mode, called PTRACE_SYSEMU, resembling PTRACE_SYSCALL\nexcept that the kernel does not execute the requested syscall; this is useful\nto improve performance for virtual environments, like UML, which want to run\nthe syscall on their own.\n\nIn fact, using PTRACE_SYSCALL means stopping child execution twice, on entry\nand on exit, and each time you also have two context switches; with SYSEMU you\navoid the 2nd stop and so save two context switches per syscall.\n\nAlso, some architectures don\u0027t have support in the host for changing the\nsyscall number via ptrace(), which is currently needed to skip syscall\nexecution (UML turns any syscall into getpid() to avoid it being executed on\nthe host). Fixing that is hard, while SYSEMU is easier to implement.\n\n* This version of the patch includes some suggestions of Jeff Dike to avoid\n adding any instructions to the syscall fast path, plus some other little\n changes, by myself, to make it work even when the syscall is executed with\n SYSENTER (but I\u0027m unsure about them). It has been widely tested for quite a\n lot of time.\n\n* Various fixed were included to handle the various switches between\n various states, i.e. when for instance a syscall entry is traced with one of\n PT_SYSCALL / _SYSEMU / _SINGLESTEP and another one is used on exit.\n Basically, this is done by remembering which one of them was used even after\n the call to ptrace_notify().\n\n* We\u0027re combining TIF_SYSCALL_EMU with TIF_SYSCALL_TRACE or TIF_SINGLESTEP\n to make do_syscall_trace() notice that the current syscall was started with\n SYSEMU on entry, so that no notification ought to be done in the exit path;\n this is a bit of a hack, so this problem is solved in another way in next\n patches.\n\n* Also, the effects of the patch:\n\"Ptrace - i386: fix Syscall Audit interaction with singlestep\"\nare cancelled; they are restored back in the last patch of this series.\n\nDetailed descriptions of the patches doing this kind of processing follow (but\nI\u0027ve already summed everything up).\n\n* Fix behaviour when changing interception kind #1.\n\n In do_syscall_trace(), we check the status of the TIF_SYSCALL_EMU flag\n only after doing the debugger notification; but the debugger might have\n changed the status of this flag because he continued execution with\n PTRACE_SYSCALL, so this is wrong. This patch fixes it by saving the flag\n status before calling ptrace_notify().\n\n* Fix behaviour when changing interception kind #2:\n avoid intercepting syscall on return when using SYSCALL again.\n\n A guest process switching from using PTRACE_SYSEMU to PTRACE_SYSCALL\n crashes.\n\n The problem is in arch/i386/kernel/entry.S. The current SYSEMU patch\n inhibits the syscall-handler to be called, but does not prevent\n do_syscall_trace() to be called after this for syscall completion\n interception.\n\n The appended patch fixes this. It reuses the flag TIF_SYSCALL_EMU to\n remember \"we come from PTRACE_SYSEMU and now are in PTRACE_SYSCALL\", since\n the flag is unused in the depicted situation.\n\n* Fix behaviour when changing interception kind #3:\n avoid intercepting syscall on return when using SINGLESTEP.\n\n When testing 2.6.9 and the skas3.v6 patch, with my latest patch and had\n problems with singlestepping on UML in SKAS with SYSEMU. It looped\n receiving SIGTRAPs without moving forward. EIP of the traced process was\n the same for all SIGTRAPs.\n\nWhat\u0027s missing is to handle switching from PTRACE_SYSCALL_EMU to\nPTRACE_SINGLESTEP in a way very similar to what is done for the change from\nPTRACE_SYSCALL_EMU to PTRACE_SYSCALL_TRACE.\n\nI.e., after calling ptrace(PTRACE_SYSEMU), on the return path, the debugger is\nnotified and then wake ups the process; the syscall is executed (or skipped,\nwhen do_syscall_trace() returns 0, i.e. when using PTRACE_SYSEMU), and\ndo_syscall_trace() is called again. Since we are on the return path of a\nSYSEMU\u0027d syscall, if the wake up is performed through ptrace(PTRACE_SYSCALL),\nwe must still avoid notifying the parent of the syscall exit. Now, this\nbehaviour is extended even to resuming with PTRACE_SINGLESTEP.\n\nSigned-off-by: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "57c4ce3cbfba1bb0da7f37b9328a713cbd5d0919", "tree": "916c1435e9cba3dd050e526637ee8bf51db140e8", "parents": [ "6161b2ce8116b9a623260ab811e2c035b3fac2e5" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Sat Sep 03 15:57:06 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:18 2005 -0700" }, "message": "[PATCH] pm: clean up /sys/power/disk\n\nClean code up a bit, and only show suspend to disk as available when\nit is configured in.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6161b2ce8116b9a623260ab811e2c035b3fac2e5", "tree": "8cb36b11631c0843fb5a7e600626a2f6a230846b", "parents": [ "99dc7d63e0dcb457580241055b2a39d011309db8" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Sat Sep 03 15:57:05 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:17 2005 -0700" }, "message": "[PATCH] pm: fix process freezing\n\nIf process freezing fails, some processes are frozen, and rest are left in\n\"were asked to be frozen\" state. Thats wrong, we should leave it in some\nconsistent state.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "99dc7d63e0dcb457580241055b2a39d011309db8", "tree": "3be63831f5fa823ef7e5c99339e9a71c29d3ad08", "parents": [ "dd5d666b7995e542b7f81a4bb1c7ad634f4f6c51" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Sat Sep 03 15:57:05 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:17 2005 -0700" }, "message": "[PATCH] swsusp: fix error handling and cleanups\n\nDrop printing during normal boot (when no image exists in swap), print\nmessage when drivers fail, fix error paths and consolidate near-identical\nfunctions in disk.c (and functions with just one statement).\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dd5d666b7995e542b7f81a4bb1c7ad634f4f6c51", "tree": "de010e4bd66681ec75657746d652eb89f08142b7", "parents": [ "6ed9fcec85d5ef0e34ea18affe95e4a246714565" ], "author": { "name": "Shaohua Li", "email": "shaohua.li@intel.com", "time": "Sat Sep 03 15:57:04 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:17 2005 -0700" }, "message": "[PATCH] swsusp: add locking to software_resume\n\nIt is trying to protect swsusp_resume_device and software_resume() from two\nusers banging it from userspace at the same time.\n\nSigned-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "56057e1a128a9aab516350500e5b154e70577929", "tree": "68f323a6e919d96dad59471decb3bea3ec6a36fc", "parents": [ "46dacba52a19d1414ba249499a48382c16242d99" ], "author": { "name": "Michal Schmidt", "email": "xschmi00@stud.feec.vutbr.cz", "time": "Sat Sep 03 15:57:02 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:17 2005 -0700" }, "message": "[PATCH] swsusp: simpler calculation of number of pages in PBE list\n\nThe function calc_nr uses an iterative algorithm to calculate the number of\npages needed for the image and the pagedir. Exactly the same result can be\nobtained with a one-line expression.\n\nNote that this was even proved correct ;-).\n\nSigned-off-by: Michal Schmidt \u003cxschmi00@stud.feec.vutbr.cz\u003e\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c2ff18f4070f6303a81fd7d9d967d7c9e01b588f", "tree": "250a50e27885a179d0fee37cef31cf3a4d4627d3", "parents": [ "583a4e88db1eadc52116e1f97b4519de655b2b80" ], "author": { "name": "Andreas Steinmetz", "email": "ast@domdv.de", "time": "Sat Sep 03 15:56:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:16 2005 -0700" }, "message": "[PATCH] encrypt suspend data for easy wiping\n\nThe patch protects from leaking sensitive data after resume from suspend.\nDuring suspend a temporary key is created and this key is used to encrypt the\ndata written to disk. When, during resume, the data was read back into memory\nthe temporary key is destroyed which simply means that all data written to\ndisk during suspend are then inaccessible so they can\u0027t be stolen lateron.\n\nThink of the following: you suspend while an application is running that keeps\nsensitive data in memory. The application itself prevents the data from being\nswapped out. Suspend, however, must write these data to swap to be able to\nresume lateron. Without suspend encryption your sensitive data are then\nstored in plaintext on disk. This means that after resume your sensitive data\nare accessible to all applications having direct access to the swap device\nwhich was used for suspend. If you don\u0027t need swap after resume these data\ncan remain on disk virtually forever. Thus it can happen that your system\ngets broken in weeks later and sensitive data which you thought were encrypted\nand protected are retrieved and stolen from the swap device.\n\nSigned-off-by: Andreas Steinmetz \u003cast@domdv.de\u003e\nAcked-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2a23b5d1e119fd10e25b8e93464c8d549f5a5c5d", "tree": "60eede3a1a0a92837c0207de2750880d9a309db1", "parents": [ "52fdd08903a1d1162e184114837e232640191627" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Sat Sep 03 15:56:53 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:14 2005 -0700" }, "message": "[PATCH] remove busywait in refrigerator\n\nThis should make refrigerator sleep properly, not busywait after the first\nschedule() returns.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dae06ac43d56d23e50a2300d511b32a9e38cd657", "tree": "62bfa95e769ec5c731f02435b49025a15c45faf4", "parents": [ "5d337b9194b1ce3b6fd5f3cb2799455ed2f9a3d1" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Sep 03 15:54:42 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:05:42 2005 -0700" }, "message": "[PATCH] swap: update swsusp use of swap_info\n\nAha, swsusp dips into swap_info[], better update it to swap_lock. It\u0027s\nbitflipping flags with 0xFF, so get_swap_page will allocate from only the one\nchosen device: let\u0027s change that to flip SWP_WRITEOK.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "20380731bc2897f2952ae055420972ded4cd786e", "tree": "abd31e5ebfadcf4f9024634eec8b11855029e512", "parents": [ "9deff7f2365958c5c5aa8cb5a0dd651c4dd83f8f" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@mandriva.com", "time": "Tue Aug 16 02:18:02 2005 -0300" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Aug 29 16:01:32 2005 -0700" }, "message": "[NET]: Fix sparse warnings\n\nOf this type, mostly:\n\nCHECK net/ipv6/netfilter.c\nnet/ipv6/netfilter.c:96:12: warning: symbol \u0027ipv6_netfilter_init\u0027 was not declared. Should it be static?\nnet/ipv6/netfilter.c:101:6: warning: symbol \u0027ipv6_netfilter_fini\u0027 was not declared. Should it be static?\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@mandriva.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "066286071d3542243baa68166acb779187c848b3", "tree": "ef6604f16ceb13842a30311654e6a64aac716c48", "parents": [ "9a4595bc7e67962f13232ee55a64e063062c3a99" ], "author": { "name": "Patrick McHardy", "email": "kaber@trash.net", "time": "Mon Aug 15 12:33:26 2005 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Aug 29 16:01:11 2005 -0700" }, "message": "[NETLINK]: Add \"groups\" argument to netlink_kernel_create\n\nSigned-off-by: Patrick McHardy \u003ckaber@trash.net\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "4fdb3bb723db469717c6d38fda667d8b0fa86ebd", "tree": "43d82e717922e6319cf8a8f9dc5ee902c651b491", "parents": [ "020b4c12dbe3868d792a01d7c1470cd837abe10f" ], "author": { "name": "Harald Welte", "email": "laforge@netfilter.org", "time": "Tue Aug 09 19:40:55 2005 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Aug 29 15:35:08 2005 -0700" }, "message": "[NETLINK]: Add properly module refcounting for kernel netlink sockets.\n\n- Remove bogus code for compiling netlink as module\n- Add module refcounting support for modules implementing a netlink\n protocol\n- Add support for autoloading modules that implement a netlink protocol\n as soon as someone opens a socket for that protocol\n\nSigned-off-by: Harald Welte \u003claforge@netfilter.org\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "212d6d2237f60bc28c1518f8abf9d3ed6c17574a", "tree": "693ac9cdb0693acb0f935d4b61a34e6a12056add", "parents": [ "ca2f3daf779f5e89d14e9783fcfd7920842df9e9" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Thu Aug 25 12:47:56 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Aug 26 16:38:47 2005 -0700" }, "message": "[PATCH] completely disable cpu_exclusive sched domain\n\nAt the suggestion of Nick Piggin and Dinakar, totally disable\nthe facility to allow cpu_exclusive cpusets to define dynamic\nsched domains in Linux 2.6.13, in order to avoid problems\nfirst reported by John Hawkes (corrupt sched data structures\nand kernel oops).\n\nThis has been built for ppc64, i386, ia64, x86_64, sparc, alpha.\nIt has been built, booted and tested for cpuset functionality\non an SN2 (ia64).\n\nDinakar or Nick - could you verify that it for sure does avoid\nthe problems Hawkes reported. Hawkes is out of town, and I don\u0027t\nhave the recipe to reproduce what he found.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ca2f3daf779f5e89d14e9783fcfd7920842df9e9", "tree": "07ce4cc60957d842dac1cb3d44dd5441071cf90f", "parents": [ "13142341ac867bb67e88204cbfcb8d90f9a861b7" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Thu Aug 25 12:47:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Aug 26 16:38:46 2005 -0700" }, "message": "[PATCH] undo partial cpu_exclusive sched domain disabling\n\nThe partial disabling of Dinakar\u0027s new facility to allow\ncpu_exclusive cpusets to define dynamic sched domains\ndoesn\u0027t go far enough. At the suggestion of Nick Piggin\nand Dinakar, let us instead totally disable this facility\nfor 2.6.13, in order to avoid problems first reported\nby John Hawkes (corrupt sched data structures and kernel oops).\n\nThis patch removes the partial disabling code in 2.6.13-rc7,\nin anticipation of the next patch, which will totally disable\nit instead.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3725822f7c7134249addcd4549aff086950c8090", "tree": "d7db18d3d5f75fe4309ddc7aa373f3213f845b41", "parents": [ "40bb0c3ef52d872de348e10000eb5432a43a147d" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Wed Aug 24 04:15:10 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Aug 24 09:40:45 2005 -0700" }, "message": "[PATCH] cpu_exclusive sched domains build fix\n\nAs reported by Paul Mackerras \u003cpaulus@samba.org\u003e, the previous patch\n\"cpu_exclusive sched domains fix\" broke the ppc64 build with\nCONFIC_CPUSET, yielding error messages:\n\nkernel/cpuset.c: In function \u0027update_cpu_domains\u0027:\nkernel/cpuset.c:648: error: invalid lvalue in unary \u0027\u0026\u0027\nkernel/cpuset.c:648: error: invalid lvalue in unary \u0027\u0026\u0027\n\nOn some arch\u0027s, the node_to_cpumask() is a function, returning\na cpumask_t. But the for_each_cpu_mask() requires an lvalue mask.\n\nThe following patch fixes this build failure by making a copy\nof the cpumask_t on the stack.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d10689b68aff7b48e3de1a3f7fcd6567bd2905af", "tree": "c81c261274011d301dfbcfd1a3e13480b93c167e", "parents": [ "ae75784bc576a1af70509c2f3ba2b70bb65a0c58" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Tue Aug 23 01:04:27 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Aug 23 20:02:52 2005 -0700" }, "message": "[PATCH] cpu_exclusive sched domains on partial nodes temp fix\n\nThis keeps the kernel/cpuset.c routine update_cpu_domains() from\ninvoking the sched.c routine partition_sched_domains() if the cpuset in\nquestion doesn\u0027t fall on node boundaries.\n\nI have boot tested this on an SN2, and with the help of a couple of ad\nhoc printk\u0027s, determined that it does indeed avoid calling the\npartition_sched_domains() routine on partial nodes.\n\nI did not directly verify that this avoids setting up bogus sched\ndomains or avoids the oops that Hawkes saw.\n\nThis patch imposes a silent artificial constraint on which cpusets can\nbe used to define dynamic sched domains.\n\nThis patch should allow proceeding with this new feature in 2.6.13 for\nthe configurations in which it is useful (node alligned sched domains)\nwhile avoiding trying to setup sched domains in the less useful cases\nthat can cause the kernel corruption and oops.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nAcked-by: John Hawkes \u003chawkes@sgi.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4c5640cb5f5a6fd780d99397eca028b575cb1206", "tree": "3f5eb4b4390ea71031eb2c93261052e6698cbdc1", "parents": [ "3f024c1a4bc8ef9a149879351ce8b3aa749e0c2f" ], "author": { "name": "David Meybohm", "email": "dmeybohmlkml@bellsouth.net", "time": "Mon Aug 22 13:11:08 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Aug 23 11:44:29 2005 -0700" }, "message": "[PATCH] preempt race in getppid\n\nWith CONFIG_PREEMPT \u0026\u0026 !CONFIG_SMP, it\u0027s possible for sys_getppid to\nreturn a bogus value if the parent\u0027s task_struct gets reallocated after\ncurrent-\u003egroup_leader-\u003ereal_parent is read:\n\n asmlinkage long sys_getppid(void)\n {\n int pid;\n struct task_struct *me \u003d current;\n struct task_struct *parent;\n\n parent \u003d me-\u003egroup_leader-\u003ereal_parent;\nRACE HERE \u003d\u003e for (;;) {\n pid \u003d parent-\u003etgid;\n #ifdef CONFIG_SMP\n {\n struct task_struct *old \u003d parent;\n\n /*\n * Make sure we read the pid before re-reading the\n * parent pointer:\n */\n smp_rmb();\n parent \u003d me-\u003egroup_leader-\u003ereal_parent;\n if (old !\u003d parent)\n continue;\n }\n #endif\n break;\n }\n return pid;\n }\n\nIf the process gets preempted at the indicated point, the parent process\ncan go ahead and call exit() and then get wait()\u0027d on to reap its\ntask_struct. When the preempted process gets resumed, it will not do any\nfurther checks of the parent pointer on !CONFIG_SMP: it will read the\nbad pid and return.\n\nSo, the same algorithm used when SMP is enabled should be used when\npreempt is enabled, which will recheck -\u003ereal_parent in this case.\n\nSigned-off-by: David Meybohm \u003cdmeybohmlkml@bellsouth.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "024f474795af7a0d41bd6d60061d78bd66d13f56", "tree": "41dd079483713c7669b4c684686de3b701362d34", "parents": [ "6cbe9de7a4353d1a1b77887b5459ac5304c0984a" ], "author": { "name": "Matt Mackall", "email": "mpm@selenic.com", "time": "Thu Aug 18 11:24:19 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Aug 18 12:53:58 2005 -0700" }, "message": "[PATCH] Make RLIMIT_NICE ranges consistent with getpriority(2)\n\nAs suggested by Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e, make RLIMIT_NICE\nconsistent with getpriority before it becomes available in released glibc.\n\nSigned-off-by: Matt Mackall \u003cmpm@selenic.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Chris Wright \u003cchrisw@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dd12f48d4e8774415b528d3991ae47c28f26e1ac", "tree": "d8083c3415d540adb7983bd23a80fb8420fa8414", "parents": [ "ade6648b3b11a5d81f6f28135193ab6d85d621db" ], "author": { "name": "Bhavesh P. Davda", "email": "bhavesh@avaya.com", "time": "Wed Aug 17 12:26:33 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Aug 17 12:52:04 2005 -0700" }, "message": "[PATCH] NPTL signal delivery deadlock fix\n\nThis bug is quite subtle and only happens in a very interesting\nsituation where a real-time threaded process is in the middle of a\ncoredump when someone whacks it with a SIGKILL. However, this deadlock\nleaves the system pretty hosed and you have to reboot to recover.\n\nNot good for real-time priority-preemption applications like our\ntelephony application, with 90+ real-time (SCHED_FIFO and SCHED_RR)\nprocesses, many of them multi-threaded, interacting with each other for\nhigh volume call processing.\n\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "606867443764edac5a2c542f2fa0a12ef7a7c7fd", "tree": "61110afaef5e8be41be940815a8bd6065e32c5da", "parents": [ "3462b925414a146d4c2252de97d20f89218d1ffb" ], "author": { "name": "James Bottomley", "email": "James.Bottomley@SteelEye.com", "time": "Wed Aug 10 11:29:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Aug 10 11:55:19 2005 -0700" }, "message": "[PATCH] remove name length check in a workqueue\n\nWe have a chek in there to make sure that the name won\u0027t overflow\ntask_struct.comm[], but it\u0027s triggering for scsi with lots of HBAs, only\nscsi is using single-threaded workqueues which don\u0027t append the \"/%d\"\nanyway.\n\nAll too hard. Just kill the BUG_ON.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\n\n[ kthread_create() uses vsnprintf() and limits the thing, so no\n actual overflow can actually happen regardless ]\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3077a260e9f316b611436b1506eec9cc5c4f8aa6", "tree": "43b7d5faa5f204904c713c463015792d9ff56b01", "parents": [ "a242b44da6feb604c4c659b78f63dedb69b2d4a3" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Tue Aug 09 10:07:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Aug 09 12:08:22 2005 -0700" }, "message": "[PATCH] cpuset release ABBA deadlock fix\n\nFix possible cpuset_sem ABBA deadlock if \u0027notify_on_release\u0027 set.\n\nFor a particular usage pattern, creating and destroying cpusets fairly\nfrequently using notify_on_release, on a very large system, this deadlock\ncan be seen every few days. If you are not using the cpuset\nnotify_on_release feature, you will never see this deadlock.\n\nThe existing code, on task exit (or cpuset deletion) did:\n\n get cpuset_sem\n if cpuset marked notify_on_release and is ready to release:\n compute cpuset path relative to /dev/cpuset mount point\n call_usermodehelper() forks /sbin/cpuset_release_agent with path\n drop cpuset_sem\n\nUnfortunately, the fork in call_usermodehelper can allocate memory, and\nallocating memory can require cpuset_sem, if the mems_generation values\nchanged in the interim. This results in an ABBA deadlock, trying to obtain\ncpuset_sem when it is already held by the current task.\n\nTo fix this, I put the cpuset path (which must be computed while holding\ncpuset_sem) in a temporary buffer, to be used in the call_usermodehelper\ncall of /sbin/cpuset_release_agent only _after_ dropping cpuset_sem.\n\nSo the new logic is:\n\n get cpuset_sem\n if cpuset marked notify_on_release and is ready to release:\n compute cpuset path relative to /dev/cpuset mount point\n stash path in kmalloc\u0027d buffer\n drop cpuset_sem\n call_usermodehelper() forks /sbin/cpuset_release_agent with path\n free path\n\nThe sharp eyed reader might notice that this patch does not contain any\ncalls to kmalloc. The existing code in the check_for_release() routine was\nalready kmalloc\u0027ing a buffer to hold the cpuset path. In the old code, it\njust held the buffer for a few lines, over the cpuset_release_agent() call\nthat in turn invoked call_usermodehelper(). In the new code, with the\napplication of this patch, it returns that buffer via the new char\n**ppathbuf parameter, for later use and freeing in cpuset_release_agent(),\nwhich is called after cpuset_sem is dropped. Whereas the old code has just\none call to cpuset_release_agent(), right in the check_for_release()\nroutine, the new code has three calls to cpuset_release_agent(), from the\nvarious places that a cpuset can be released.\n\nThis patch has been build and booted on SN2, and passed a stress test that\npreviously hit the deadlock within a few seconds.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c306895167c8384b88bc02945a0d226a04218fa5", "tree": "d3f298c9cf8f36787acae2c829e64f05a392162c", "parents": [ "e8ed11b9dc07df0134248542ca8e7d40751a6052" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Thu Aug 04 16:49:32 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Aug 04 16:57:49 2005 -0700" }, "message": "[PATCH] revert \"timer exit cleanup\"\n\nRevert this June 17 patch: it broke persistence of timers across execve().\n\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: george anzinger \u003cgeorge@mvista.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c36f19e02a96488f550fdb678c92500afca3109b", "tree": "b446faa5bd5a0e506b20def0e5f0a1f210dce30a", "parents": [ "d95a1b4818f2fe38a3cfc9a7d5817dc9a1a69329" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Thu Aug 04 11:36:26 2005 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Aug 04 08:20:47 2005 -0700" }, "message": "[PATCH] Remove suspend() calls from shutdown path\n\nThis removes the calls to device_suspend() from the shutdown path that\nwere added sometime during 2.6.13-rc*. They aren\u0027t working properly on\na number of configs (I got reports from both ppc powerbook users and x86\nusers) causing the system to not shutdown anymore.\n\nI think it isn\u0027t the right approach at the moment anyway. We have\nalready a shutdown() callback for the drivers that actually care about\nshutdown and the suspend() code isn\u0027t yet in a good enough shape to be\nso much generalized. Also, the semantics of suspend and shutdown are\nslightly different on a number of setups and the way this was patched in\nprovides little way for drivers to cleanly differenciate. It should\nhave been at least a different message.\n\nFor 2.6.13, I think we should revert to 2.6.12 behaviour and have a\nworking suspend back.\n\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "842bbaaa7394820c8f1fe0629cd15478653caf86", "tree": "5934040b40357f479b16d638ffd2fe435f4837e8", "parents": [ "561fb765b97f287211a2c73a844c5edb12f44f1d" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Aug 01 21:11:47 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Aug 01 21:38:01 2005 -0700" }, "message": "[PATCH] Module per-cpu alignment cannot always be met\n\nThe module code assumes noone will ever ask for a per-cpu area more than\nSMP_CACHE_BYTES aligned. However, as these cases show, gcc asks sometimes\nasks for 32-byte alignment for the per-cpu section on a module, and if\nCONFIG_X86_L1_CACHE_SHIFT is 4, we hit that BUG_ON(). This is obviously an\nunusual combination, as there have been few reports, but better to warn\nthan die.\n\nSee:\n\thttp://www.ussg.iu.edu/hypermail/linux/kernel/0409.0/0768.html\n\nAnd more recently:\n\thttp://bugs.gentoo.org/show_bug.cgi?id\u003d97006\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6cb54819d7b1867053e2dfd8c0ca3a8dc65a7eff", "tree": "1a1422dc2e103fe92dd86bfa26b8b39b3f2413d5", "parents": [ "5d546f54324e04747e82ccbb4ea85f54bdcacd6d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 01 13:39:13 2005 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Aug 01 10:03:56 2005 -0700" }, "message": "[PATCH] remove sys_set_zone_reclaim()\n\nThis removes sys_set_zone_reclaim() for now. While i\u0027m sure Martin is\ntrying to solve a real problem, we must not hard-code an incomplete and\ninsufficient approach into a syscall, because syscalls are pretty much\nfor eternity. I am quite strongly convinced that this syscall must not\nhit v2.6.13 in its current form.\n\nFirstly, the syscall lacks basic syscall design: e.g. it allows the\nglobal setting of VM policy for unprivileged users. (!) [ Imagine an\nOracle installation and a SAP installation on the same NUMA box fighting\nover the \u0027optimal\u0027 setting for this flag. What will they do? Will they\ntry to set the flag to their own preferred value every second or so? ]\n\nSecondly, it was added based on a single datapoint from Martin:\n\n http://marc.theaimsgroup.com/?l\u003dlinux-mm\u0026m\u003d111763597218177\u0026w\u003d2\n\nwhere Martin characterizes the numbers the following way:\n\n \u0027 Run-to-run variability for \"make -j\" is huge, so these numbers aren\u0027t\n terribly useful except to see that with reclaim the benchmark still\n finishes in a reasonable amount of time. \u0027\n\nin other words: the fundamental problem has likely not been solved, only\na tendential move into the right direction has been observed, and a\nhandful of numbers were picked out of a set of hugely variable results,\nwithout showing the variability data. How much variance is there\nrun-to-run?\n\nI\u0027d really suggest to first walk the walk and see what\u0027s needed to get\nstable \u0026 predictable kernel compilation numbers on that NUMA box, before\nadding random syscalls to tune a particular aspect of the VM ... which\napproach might not even matter once the whole picture has been analyzed\nand understood!\n\nThe third, most important point is that the syscall exposes VM tuning\ninternals in a completely unstructured way. What sense does it make to\nhave a _GLOBAL_ per-node setting for \u0027should we go to another node for\nreclaim\u0027? If then it might make sense to do this per-app, via numalib or\nso.\n\nThe change is minimalistic in that it doesnt remove the syscall and the\nunderlying infrastructure changes, only the user-visible changes. We\ncould perhaps add a CAP_SYS_ADMIN-only sysctl for this hack, a\u0027ka\n/proc/sys/vm/swappiness, but even that looks quite counterproductive\nwhen the generic approach is that we are trying to reduce the number of\nexternal factors in the VM balance picture.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c70f5d6610c601ea2ae4ae4e49f66c80801e895f", "tree": "288ab7efcb1285474e7f7277002cba8de236bbf1", "parents": [ "6d1d07e41a1de478a0da3cc14b4a8054ef09931c" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sat Jul 30 10:22:49 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Jul 30 10:49:59 2005 -0700" }, "message": "[PATCH] revert bogus softirq changes\n\nThis snuck in with an x86_64 change. Thanks to Richard Purdie\n\u003crpurdie@rpsys.net\u003e for spotting it.\n\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1108bae41e2ac596f46bc4cd8876b93063203d2b", "tree": "dafda7d00016ab17d34e7a83239c35b6b682812a", "parents": [ "d6d2a2ab05da6e44bd127fe375078bb7c36a0ad0" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Jul 29 12:50:57 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jul 29 12:02:09 2005 -0700" }, "message": "[PATCH] reboot: remove device_suspend(PMSG_FREEZE) from kernel_kexec\n\nIf device_suspend(PMSG_FREEZE) is not ready to be called in\nkernel_restart it is definitely not ready to be called in the even more\nfickle kernel_kexec.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "78fa74a23b16bdb0d944272b696915c4e0bb3ee1", "tree": "5f0d83021afeb7adffce9b41557e1d2e3c8c08bd", "parents": [ "a2d76bd8fa29f9b6dbf3ee8f6bc7bdda21bc5ce8" ], "author": { "name": "George Anzinger", "email": "george@mvista.com", "time": "Thu Jul 28 21:16:16 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 28 21:46:05 2005 -0700" }, "message": "[PATCH] posix timers: fix normalization problem\n\n(We found this (after a customer complained) and it is in the kernel.org\nkernel. Seems that for CLOCK_MONOTONIC absolute timers and clock_nanosleep\ncalls both the request time and wall_to_monotonic are subtracted prior to\nthe normalize resulting in an overflow in the existing normalize test.\nThis causes the result to be shifted ~4 seconds ahead instead of ~2 seconds\nback in time.)\n\nThe normalize code in posix-timers.c fails when the tv_nsec member is ~1.2\nseconds negative. This can happen on absolute timers (and\nclock_nanosleeps) requested on CLOCK_MONOTONIC (both the request time and\nwall_to_monotonic are subtracted resulting in the possibility of a number\nclose to -2 seconds.)\n\nThis fix uses the set_normalized_timespec() (which does not have an\noverflow problem) to fix the problem and as a side effect makes the code\ncleaner.\n\nSigned-off-by: George Anzinger \u003cgeorge@mvista.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ed6b676ca8b50e0b538e61c283d52fd04f007abf", "tree": "753ea613ce334c41f835f6aac21074b137d24713", "parents": [ "3829ee6b1be03d5aa3005fe7d19f30088b539836" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Thu Jul 28 21:15:49 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 28 21:46:02 2005 -0700" }, "message": "[PATCH] x86_64: Switch to the interrupt stack when running a softirq in local_bh_enable()\n\nThis avoids some potential stack overflows with very deep softirq callchains.\ni386 does this too.\n\nTOADD CFI annotation\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e4ff4d7f9d85a2bc714307eb9113617182e62845", "tree": "845bea10c10850e6bd842367aafddca66ca24a06", "parents": [ "49302d0c42592b37f49ae96e0f06a3599cf5a8a0" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Wed Jul 27 10:41:23 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:46:37 2005 -0700" }, "message": "[PATCH] Avoid device suspend on reboot\n\nMy fairly ordinary x86 test box gets stuck during reboot on the\nwait_for_completion() in ide_do_drive_cmd():\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "77933d7276ee8fa0e2947641941a6f7a100a327b", "tree": "e3a42724642410f5257c794a71b34642092eedd5", "parents": [ "03e259a9cdbd0583e71468293aaa1ccadbdaeff1" ], "author": { "name": "Jesper Juhl", "email": "juhl@dif.dk", "time": "Wed Jul 27 11:46:09 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:26:20 2005 -0700" }, "message": "[PATCH] clean up inline static vs static inline\n\n`gcc -W\u0027 likes to complain if the static keyword is not at the beginning of\nthe declaration. This patch fixes all remaining occurrences of \"inline\nstatic\" up with \"static inline\" in the entire kernel tree (140 occurrences in\n47 files).\n\nWhile making this change I came across a few lines with trailing whitespace\nthat I also fixed up, I have also added or removed a blank line or two here\nand there, but there are no functional changes in the patch.\n\nSigned-off-by: Jesper Juhl \u003cjuhl-lkml@dif.dk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e77e17161ccb8bd877bf83b3611cd318e451c605", "tree": "55fb0a366a2f1e3364f0088d5699cbf09b37d29a", "parents": [ "d9fd8a6d443b509147280f058d4e59f0b796a323" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Wed Jul 27 11:45:11 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:26:06 2005 -0700" }, "message": "[PATCH] kernel/crash_dump.c: add kerneldoc\n\nAdd kerneldoc to kernel/crash_dump.c\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d9fd8a6d443b509147280f058d4e59f0b796a323", "tree": "427385e403fc0d4282be19732a00ddfd224c1461", "parents": [ "207a7ba8dc000e1b13acac97f3736810dd86e8e2" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Wed Jul 27 11:45:11 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:26:06 2005 -0700" }, "message": "[PATCH] kernel/cpuset.c: add kerneldoc, fix typos\n\nAdd kerneldoc to kernel/cpuset.c\n\nFix cpuset typos in init/Kconfig\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "207a7ba8dc000e1b13acac97f3736810dd86e8e2", "tree": "de7baa1aa4a7752c6ea447938e73817de899d141", "parents": [ "c293621bbf678a3d85e3ed721c3921c8a670610d" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Wed Jul 27 11:45:10 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:26:06 2005 -0700" }, "message": "[PATCH] kernel/capability.c: add kerneldoc\n\nAdd kerneldoc to kernel/capability.c\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "951f22d5b1f0eaae35dafc669e3774a0c2084d10", "tree": "66c0131b576dadb98026da11d624df453c4c9a7c", "parents": [ "8449d003f323ca7a00eec38905d984ba5ec83a29" ], "author": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Wed Jul 27 11:44:57 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:26:04 2005 -0700" }, "message": "[PATCH] s390: spin lock retry\n\nSplit spin lock and r/w lock implementation into a single try which is done\ninline and an out of line function that repeatedly tries to get the lock\nbefore doing the cpu_relax(). Add a system control to set the number of\nretries before a cpu is yielded.\n\nThe reason for the spin lock retry is that the diagnose 0x44 that is used to\ngive up the virtual cpu is quite expensive. For spin locks that are held only\nfor a short period of time the costs of the diagnoses outweights the savings\nfor spin locks that are held for a longer timer. The default retry count is\n1000.\n\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d912d1ff218195c248c770eb677726695e07aa40", "tree": "6718b67656e3cf0ec0c03b585f43f8815809cdcd", "parents": [ "b7343f01e326374e69666ca6001bdb6a7c67e9f7" ], "author": { "name": "George Anzinger", "email": "george@mvista.com", "time": "Wed Jul 27 11:43:44 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:25:51 2005 -0700" }, "message": "[PATCH] itimer fixes\n\nFix the recent off-by-one fix in the itimer code:\n\n1. The repeating timer is figured using the requested time\n\t(not +1 as we know where we are in the jiffie).\n\n2. The tests for interval too large are left to the time_val to jiffie code.\n\nSigned-off-by: George Anzinger \u003cgeorge@mvista.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bba0e4670a4e1841a96b561dcc60ebe335049891", "tree": "613d90ff9d665edd9a6ad769c7d9757922507fd5", "parents": [ "9a14d4c898285623d1f5c338b659fa82cf4480fb" ], "author": { "name": "Nigel Cunningham", "email": "ncunningham@cyclades.com", "time": "Wed Jul 27 11:43:41 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:25:50 2005 -0700" }, "message": "[PATCH] Address BUG: using smp_processor_id() in preemptible [00000001] code\n\nThis patch fixes a warning in the disable_nonboot_cpus call in\nkernel/power/smp.c.\n\nSigned-off by: Nigel Cunningham \u003cnigel@suspend2.net\u003e\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d46523ea32a79fbc8cd1237f9441f45cc3f02456", "tree": "0afe4590170ad25e38005f72431680ba47ba6860", "parents": [ "18586e721636527cb5177467fb17e2350615978a" ], "author": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Mon Jul 25 16:28:39 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 15:40:00 2005 -0700" }, "message": "[PATCH] fix MAX_USER_RT_PRIO and MAX_RT_PRIO\n\nHere\u0027s the patch again to fix the code to handle if the values between\nMAX_USER_RT_PRIO and MAX_RT_PRIO are different.\n\nWithout this patch, an SMP system will crash if the values are\ndifferent.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Dean Nelson \u003cdcn@sgi.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "18586e721636527cb5177467fb17e2350615978a", "tree": "96d34b10d000fa8b1df16ae8f4c73761013371b5", "parents": [ "fc00a6274b786f6863b32c79ff6f92aa0960b789" ], "author": { "name": "Andreas Steinmetz", "email": "ast@domdv.de", "time": "Sat Jul 23 13:42:04 2005 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 15:30:51 2005 -0700" }, "message": "[PATCH] Fix RLIMIT_RTPRIO breakage\n\nRLIMIT_RTPRIO is supposed to grant non privileged users the right to use\nSCHED_FIFO/SCHED_RR scheduling policies with priorites bounded by the\nRLIMIT_RTPRIO value via sched_setscheduler(). This is usually used by\naudio users.\n\nUnfortunately this is broken in 2.6.13rc3 as you can see in the excerpt\nfrom sched_setscheduler below:\n\n /*\n * Allow unprivileged RT tasks to decrease priority:\n */\n if (!capable(CAP_SYS_NICE)) {\n /* can\u0027t change policy */\n if (policy !\u003d p-\u003epolicy)\n return -EPERM;\n\nAfter the above unconditional test which causes sched_setscheduler to\nfail with no regard to the RLIMIT_RTPRIO value the following check is made:\n\n /* can\u0027t increase priority */\n if (policy !\u003d SCHED_NORMAL \u0026\u0026\n param-\u003esched_priority \u003e p-\u003ert_priority \u0026\u0026\n param-\u003esched_priority \u003e\n p-\u003esignal-\u003erlim[RLIMIT_RTPRIO].rlim_cur)\n return -EPERM;\n\nThus I do believe that the RLIMIT_RTPRIO value must be taken into\naccount for the policy check, especially as the RLIMIT_RTPRIO limit is\nof no use without this change.\n\nThe attached patch fixes this problem.\n\nSigned-off-by: Andreas Steinmetz \u003cast@domdv.de\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fdde86ac50357b6a811e3574e47d189e81a21444", "tree": "b5e8d3d295da10b84ba6538359e20c5435b3085a", "parents": [ "804ebf46d51653e736108074473d9493398f2df9" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 12:01:17 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:44 2005 -0700" }, "message": "[PATCH] swpsuspend: Have suspend to disk use factors of sys_reboot\n\nThe suspend to disk code was a poor copy of the code in\nsys_reboot now that we have kernel_power_off, kernel_restart\nand kernel_halt use them instead of poorly duplicating them inline.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2f048ea81df94f72dee0d42b3d9b941c03b8c9c5", "tree": "1a60d6cc74585629750030c26c05ca471ca39546", "parents": [ "ff31977782a05504f2586ec9e3e5ab4b09a4c893" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:49:23 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:43 2005 -0700" }, "message": "[PATCH] Call emergency_reboot from panic\n\nWe know the system is in trouble so there is no question if this\nis an emergecy :)\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ff31977782a05504f2586ec9e3e5ab4b09a4c893", "tree": "3cf1d3ab1be8688a4de9bca44d8dac276f6038e2", "parents": [ "62b3a04d75d2dc9480d5ad3b60f4258e548a6a83" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:47:32 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:43 2005 -0700" }, "message": "[PATCH] Use kernel_power_off in sysrq-o\n\nWe already do all of the gymnastics to run from process context\nto call the power off code so call into the power off code cleanly.\n\nThis especially helps acpi as part of it\u0027s shutdown logic should\nrun acpi_shutdown called from device_shutdown which was not\nbeing called from here.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7c9034735eccbf82608a4602c59aaf6053ea9416", "tree": "219e8cd4b5cfffeb261f42a2bd8e512be19cba40", "parents": [ "abcd9e51f5b832439b119d530db1353c12fd4073" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:29:55 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:41 2005 -0700" }, "message": "[PATCH] Add emergency_restart()\n\nWhen the kernel is working well and we want to restart cleanly\nkernel_restart is the function to use. But in many instances\nthe kernel wants to reboot when thing are expected to be working\nvery badly such as from panic or a software watchdog handler.\n\nThis patch adds the function emergency_restart() so that\ncallers can be clear what semantics they expect when calling\nrestart. emergency_restart() is expected to be callable\nfrom interrupt context and possibly reliable in even more\ntrying circumstances.\n\nThis is an initial generic implementation for all architectures.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "abcd9e51f5b832439b119d530db1353c12fd4073", "tree": "27ea8acee7a35021e399cafb80f4a4a57a1688e4", "parents": [ "4a00ea1e18228e5ef99d4780671fda97226bda30" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:27:34 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:41 2005 -0700" }, "message": "[PATCH] Make ctrl_alt_del call kernel_restart to get a proper reboot.\n\nIt is obvious we wanted to call kernel_restart here\nbut since we don\u0027t have it the code was expanded inline and hasn\u0027t\nbeen correct since sometime in 2.4.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4a00ea1e18228e5ef99d4780671fda97226bda30", "tree": "d77c793ef68df78b3c9a73eab16438732f875c3c", "parents": [ "47f61f397cc08b5a9a815bd03cb10c48dab66034" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:24:14 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:41 2005 -0700" }, "message": "[PATCH] Refactor sys_reboot into reusable parts\n\nBecause the factors of sys_reboot don\u0027t exist people calling\ninto the reboot path duplicate the code badly, leading to\ninconsistent expectations of code in the reboot path.\n\nThis patch should is just code motion.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47f61f397cc08b5a9a815bd03cb10c48dab66034", "tree": "747b69851f018f80ae8f7dcf512cb8f6d43eae02", "parents": [ "a6fa657b9d5c892c6a92912632c4b5715955b4f8" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Jul 26 11:21:38 2005 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 26 14:35:41 2005 -0700" }, "message": "[PATCH] Add missing device_suspsend(PMSG_FREEZE) calls.\n\nIn the recent addition of device_suspend calls into\nsys_reboot two code paths were missed.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0399cb08c54708db231d616f106f64d920e0b723", "tree": "f0424d43c578f7c5c1e7aa6ea6ca1c906c7ac289", "parents": [ "153f805781d35c91ab2f54aa2b8930cc4cfc7e89" ], "author": { "name": "Robert Love", "email": "rml@novell.com", "time": "Wed Jul 13 12:38:18 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 13 11:09:31 2005 -0700" }, "message": "[PATCH] inotify: move sysctl\n\nThis moves the inotify sysctl knobs to \"/proc/sys/fs/inotify\" from\n\"/proc/sys/fs\". Also some related cleanup.\n\nSigned-off-by: Robert Love \u003crml@novell.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0eeca28300df110bd6ed54b31193c83b87921443", "tree": "7db42d8a18d80eca538f5b7d25e0532b8fa38b85", "parents": [ "bd4c625c061c2a38568d0add3478f59172455159" ], "author": { "name": "Robert Love", "email": "rml@novell.com", "time": "Tue Jul 12 17:06:03 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 12 20:38:38 2005 -0700" }, "message": "[PATCH] inotify\n\ninotify is intended to correct the deficiencies of dnotify, particularly\nits inability to scale and its terrible user interface:\n\n * dnotify requires the opening of one fd per each directory\n that you intend to watch. This quickly results in too many\n open files and pins removable media, preventing unmount.\n * dnotify is directory-based. You only learn about changes to\n directories. Sure, a change to a file in a directory affects\n the directory, but you are then forced to keep a cache of\n stat structures.\n * dnotify\u0027s interface to user-space is awful. Signals?\n\ninotify provides a more usable, simple, powerful solution to file change\nnotification:\n\n * inotify\u0027s interface is a system call that returns a fd, not SIGIO.\n\t You get a single fd, which is select()-able.\n * inotify has an event that says \"the filesystem that the item\n you were watching is on was unmounted.\"\n * inotify can watch directories or files.\n\nInotify is currently used by Beagle (a desktop search infrastructure),\nGamin (a FAM replacement), and other projects.\n\nSee Documentation/filesystems/inotify.txt.\n\nSigned-off-by: Robert Love \u003crml@novell.com\u003e\nCc: John McCutchan \u003cttb@tentacle.dhs.org\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3f603ed319d5120e883e64ac5967b2fc848fc43b", "tree": "52ef311c245e4e4cd623b546ea1daf05a5ea8911", "parents": [ "55ee3b8365fd5d301b9076eea739146f2b91e82c", "5028770a42e7bc4d15791a44c28f0ad539323807" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 12 16:04:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 12 16:04:50 2005 -0700" }, "message": "Merge master.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-2.6\n" }, { "commit": "3b6bfcdb116f2cc2cab921fcac6d39d4022952d2", "tree": "b9bdc0f85d16bac6de043883880c203627bab9c5", "parents": [ "70d1d47c47c4643af357cb44d0d891c1b765f2ab" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Tue Jul 12 13:58:09 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 12 16:00:58 2005 -0700" }, "message": "[PATCH] lower VM_DONTCOPY total_vm\n\ndup_mmap of a VM_DONTCOPY vma forgot to lower the child\u0027s total_vm. (But\nno way does this account for the recent report of total_vm seen too low.)\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d53d9f16ea95a91ad4aa114809dcde486ca4000d", "tree": "f9cacb8d23e209653c6af2d30791ee93593ceda3", "parents": [ "22a4427972af371fddb49c0184a93851ad51070d" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Tue Jul 12 13:58:07 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 12 16:00:58 2005 -0700" }, "message": "[PATCH] name_to_dev_t warning fix\n\nkernel/power/disk.c needs a declaration of name_to_dev_t() in scope. mount.h\nseems like an appropriate choice.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5028770a42e7bc4d15791a44c28f0ad539323807", "tree": "74800e35129775413c13ce7caf036ca19e3ce56c", "parents": [ "9f02d6b7b43d46a74dd385f06090104ecd0fb807", "d8683a0cb5d09cb7f19feefa708424a84577e68f" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Tue Jul 12 17:21:56 2005 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Tue Jul 12 17:21:56 2005 -0400" }, "message": "[ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...\n\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "5ae947ecc9c1c23834201e5321684a5cb68bdd3f", "tree": "2d6b2df724d5973eb9baeae70cf3742639404021", "parents": [ "e2a5b420f716cd1a46674b1a90389612eced916f" ], "author": { "name": "David Shaohua Li", "email": "shaohua.li@intel.com", "time": "Fri Mar 18 16:27:13 2005 -0500" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Mon Jul 11 23:21:54 2005 -0400" }, "message": "[ACPI] Suspend to RAM fix\n\nFree some RAM before entering S3 so that upon\nresume we can be sure early allocations will succeed.\n\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d3469\n\nSigned-off-by: David Shaohua Li \u003cshaohua.li@intel.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "e2a5b420f716cd1a46674b1a90389612eced916f", "tree": "96f363f2e402d53428c046269514a82856b0cb34", "parents": [ "be91492ca871e58f61b517cfba541095bb60001c" ], "author": { "name": "Alexey Starikovskiy", "email": "alexey.y.starikovskiy@intel.com", "time": "Fri Mar 18 16:20:46 2005 -0500" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Mon Jul 11 23:20:49 2005 -0400" }, "message": "[ACPI] ACPI poweroff fix\n\nRegister an \"acpi\" system device to be notified of shutdown preparation.\nThis depends on CONFIG_PM\n\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d4041\n\nSigned-off-by: Alexey Starikovskiy \u003calexey.y.starikovskiy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "5bbcfd9000887c0da7d57cc7b3ac869fc0dd5aa9", "tree": "7047a60dc99e5484560b40027c81f92a4e291b29", "parents": [ "a4014d8f61a6a136d22422cf8aa978e6495dbad9" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 07 17:57:04 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:47 2005 -0700" }, "message": "[PATCH] cond_resched(): fix bogus might_sleep() warning\n\nThe BKS might be reacquired before we have dropped PREEMPT_ACTIVE, which\ncould trigger a second could trigger a second cond_resched() call. Bug\nfound by Hirofumi Ogawa.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6c036527a630720063b67d9a65455e8caca2c8fa", "tree": "316e947f5f4efcda0205e48044ed1d12665eaed1", "parents": [ "0db925af1db5f3dfe1691c35b39496e2baaff9c9" ], "author": { "name": "Christoph Lameter", "email": "christoph@lameter.com", "time": "Thu Jul 07 17:56:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:46 2005 -0700" }, "message": "[PATCH] mostly_read data section\n\nAdd a new section called \".data.read_mostly\" for data items that are read\nfrequently and rarely written to like cpumaps etc.\n\nIf these maps are placed in the .data section then these frequenly read\nitems may end up in cachelines with data is is frequently updated. In that\ncase all processors in an SMP system must needlessly reload the cachelines\nagain and again containing elements of those frequently used variables.\n\nThe ability to share these cachelines will allow each cpu in an SMP system\nto keep local copies of those shared cachelines thereby optimizing\nperformance.\n\nSigned-off-by: Alok N Kataria \u003calokk@calsoftinc.com\u003e\nSigned-off-by: Shobhit Dayal \u003cshobhit@calsoftinc.com\u003e\nSigned-off-by: Christoph Lameter \u003cchristoph@scalex86.org\u003e\nSigned-off-by: Shai Fultheim \u003cshai@scalex86.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1322ad41513f8f9196801f53cc0851df056f3478", "tree": "c7494232c8d2bb840368c664be256b93bf6696fa", "parents": [ "47b724f3fe372a3d9acf0bb560fb5c93c9867880" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Thu Jul 07 17:56:45 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:43 2005 -0700" }, "message": "[PATCH] pm: clean up process.c\n\nfreezeable() already tests for TRACED/STOPPED processes, no need to do it\ntwice.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47b724f3fe372a3d9acf0bb560fb5c93c9867880", "tree": "bbb6cf40166e0be65cf5589a6b1d46e732df1f47", "parents": [ "3efa147ad7608196639882ba4075b376f306fe16" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Thu Jul 07 17:56:44 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:43 2005 -0700" }, "message": "[PATCH] swsusp: fix error handling\n\nFix error handling and whitespace in swsusp.c. swsusp_free() was called when\nthere was nothing allocating, leading to oops.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3efa147ad7608196639882ba4075b376f306fe16", "tree": "edc1176c8af4ce97c3586382ebb7de68936f1bec", "parents": [ "e00d9967e3addea86dded46deefc5daec5d52e5a" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Thu Jul 07 17:56:43 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jul 07 18:23:43 2005 -0700" }, "message": "[PATCH] pm: Fix resume from initrd\n\nMove device name resolution code around so that it is not called from\nresume-from-initrd. name_to_dev_t may be unavailable at that point.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6772926bef3c9f0ec761b39e5702535471fff70b", "tree": "b55f1b7af51e10c54781e24b5472236323d24ee5", "parents": [ "4b1294f928d9396e45f62b1c306ac8bf9fae036b" ], "author": { "name": "Rusty Lynch", "email": "rusty.lynch@intel.com", "time": "Tue Jul 05 18:54:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jul 05 19:19:00 2005 -0700" }, "message": "[PATCH] kprobes: fix namespace problem and sparc64 build\n\nThe following renames arch_init, a kprobes function for performing any\narchitecture specific initialization, to arch_init_kprobes in order to\ncleanup the namespace.\n\nAlso, this patch adds arch_init_kprobes to sparc64 to fix the sparc64 kprobes\nbuild from the last return probe patch.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "200803dfe4ff772740d63db725ab2f1b185ccf92", "tree": "f567852c984c947f792edb18fee273cfa363d374", "parents": [ "21fe3471c3aaa5c489c5d3a4d705291eb7511248" ], "author": { "name": "Alan Cox", "email": "alan@lxorguk.ukuu.org.uk", "time": "Tue Jun 28 20:45:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 28 21:20:35 2005 -0700" }, "message": "[PATCH] irqpoll\n\nAnyone reporting a stuck IRQ should try these options. Its effectiveness\nvaries we\u0027ve found in the Fedora case. Quite a few systems with misdescribed\nIRQ routing just work when you use irqpoll. It also fixes up the VIA systems\nalthough thats now fixed with the VIA quirk (which we could just make default\nas its what Redmond OS does but Linus didn\u0027t like it historically).\n\nA small number of systems have jammed IRQ sources or misdescribes that cause\nan IRQ that we have no handler registered anywhere for. In those cases it\ndoesn\u0027t help.\n\nSigned-off-by: Alan Cox \u003cnumber6@the-village.bc.nu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f01b1b0baa454825ed95c28d2a6a71bbf4510836", "tree": "6a7dda617cdb79933780b841429e67ec7c908d52", "parents": [ "b36bbb6c3d5244eaf52241ec69f79494137f2db0" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Jun 28 20:44:47 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 28 21:20:30 2005 -0700" }, "message": "[PATCH] ITIMER_REAL: fix possible deadlock and race\n\nAs Steven Rostedt pointed out, there are 2 problems with ITIMER_REAL\ntimers.\n\n1. do_setitimer() does not call del_timer_sync() in case\n when the timer is not pending (it_real_value() returns 0).\n This is wrong, the timer may still be running, and it can\n rearm itself.\n\n2. It calls del_timer_sync() with tsk-\u003esighand-\u003esiglock held.\n This is deadlockable, because timer\u0027s handler needs this\n lock too.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47f176fdaf8924bc83fddcf9658f2fd3ef60d573", "tree": "ae54af35889451bf7873595180365182bd704ff1", "parents": [ "8d451687ca57371d303c5554b377d7f5c2ac6ae0" ], "author": { "name": "Luca Falavigna", "email": "dktrkranz@gmail.com", "time": "Tue Jun 28 20:44:42 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 28 21:20:29 2005 -0700" }, "message": "[PATCH] Using msleep() instead of HZ\n\nUse msleep() in a few places.\n\nSigned-off-by: Luca Falavigna \u003cdktrkranz@gmail.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jeff Garzik \u003cjgarzik@pobox.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f340c0d1a3f40fdcba69cd291530a4debc58748f", "tree": "22fca5983aff6ce2aa7d4ede0b031666dfe1f28d", "parents": [ "082cf69eb82681f4eacb3a5653834c7970714bef" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 28 16:40:42 2005 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 28 14:56:51 2005 -0700" }, "message": "[PATCH] Tweak idle thread setup semantics\n\nThis patch tweaks idle thread setup semantics a bit: instead of setting\nNEED_RESCHED in init_idle(), we do an explicit schedule() before calling\ninto cpu_idle().\n\nThis patch, while having no negative side-effects, enables wider use of\ncond_resched()s. (which might happen in the stock kernel too, but it\u0027s\nparticulary important for voluntary-preempt)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "314b6a4d80a7a5217c86ffdca926b6f406da0e0e", "tree": "f2a1b6a94511fb449ff35c7a3f6b1dc0f548335e", "parents": [ "97afa0a25afb43a82954662773a9d48d61b2996a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Jun 27 22:29:33 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 28 14:53:40 2005 -0700" }, "message": "[PATCH] kexec: fix sparse warnings\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "802eae7c800fb7f583e6c06afa363585af2bef00", "tree": "fa30469a4dc1f1a20abdf9466ec3c68bddef6ac9", "parents": [ "9ec4b1f356b3bad928ae8e2aa9caebfa737d52df" ], "author": { "name": "Rusty Lynch", "email": "rusty.lynch@intel.com", "time": "Mon Jun 27 15:17:08 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Mon Jun 27 15:23:52 2005 -0700" }, "message": "[PATCH] Return probe redesign: architecture independent changes\n\nThe following is the second version of the function return probe patches\nI sent out earlier this week. Changes since my last submission include:\n\n* Fix in ppc64 code removing an unneeded call to re-enable preemption\n* Fix a build problem in ia64 when kprobes was turned off\n* Added another BUG_ON check to each of the architecture trampoline\n handlers\n\nMy initial patch description \u003d\u003d\u003e\n\n From my experiences with adding return probes to x86_64 and ia64, and the\nfeedback on LKML to those patches, I think we can simplify the design\nfor return probes.\n\nThe following patch tweaks the original design such that:\n\n* Instead of storing the stack address in the return probe instance, the\n task pointer is stored. This gives us all we need in order to:\n - find the correct return probe instance when we enter the trampoline\n (even if we are recursing)\n - find all left-over return probe instances when the task is going away\n\n This has the side effect of simplifying the implementation since more\n work can be done in kernel/kprobes.c since architecture specific knowledge\n of the stack layout is no longer required. Specifically, we no longer have:\n\t- arch_get_kprobe_task()\n\t- arch_kprobe_flush_task()\n\t- get_rp_inst_tsk()\n\t- get_rp_inst()\n\t- trampoline_post_handler() \u003csee next bullet\u003e\n\n* Instead of splitting the return probe handling and cleanup logic across\n the pre and post trampoline handlers, all the work is pushed into the\n pre function (trampoline_probe_handler), and then we skip single stepping\n the original function. In this case the original instruction to be single\n stepped was just a NOP, and we can do without the extra interruption.\n\nThe new flow of events to having a return probe handler execute when a target\nfunction exits is:\n\n* At system initialization time, a kprobe is inserted at the beginning of\n kretprobe_trampoline. kernel/kprobes.c use to handle this on it\u0027s own,\n but ia64 needed to do this a little differently (i.e. a function pointer\n is really a pointer to a structure containing the instruction pointer and\n a global pointer), so I added the notion of arch_init(), so that\n kernel/kprobes.c:init_kprobes() now allows architecture specific\n initialization by calling arch_init() before exiting. Each architecture\n now registers a kprobe on it\u0027s own trampoline function.\n\n* register_kretprobe() will insert a kprobe at the beginning of the targeted\n function with the kprobe pre_handler set to arch_prepare_kretprobe\n (still no change)\n\n* When the target function is entered, the kprobe is fired, calling\n arch_prepare_kretprobe (still no change)\n\n* In arch_prepare_kretprobe() we try to get a free instance and if one is\n available then we fill out the instance with a pointer to the return probe,\n the original return address, and a pointer to the task structure (instead\n of the stack address.) Just like before we change the return address\n to the trampoline function and mark the instance as used.\n\n If multiple return probes are registered for a given target function,\n then arch_prepare_kretprobe() will get called multiple times for the same\n task (since our kprobe implementation is able to handle multiple kprobes\n at the same address.) Past the first call to arch_prepare_kretprobe,\n we end up with the original address stored in the return probe instance\n pointing to our trampoline function. (This is a significant difference\n from the original arch_prepare_kretprobe design.)\n\n* Target function executes like normal and then returns to kretprobe_trampoline.\n\n* kprobe inserted on the first instruction of kretprobe_trampoline is fired\n and calls trampoline_probe_handler() (no change here)\n\n* trampoline_probe_handler() consumes each of the instances associated with\n the current task by calling the registered handler function and marking\n the instance as unused until an instance is found that has a return address\n different then the trampoline function.\n\n (change similar to my previous ia64 RFC)\n\n* If the task is killed with some left-over return probe instances (meaning\n that a target function was entered, but never returned), then we just\n free any instances associated with the task. (Not much different other\n then we can handle this without calling architecture specific functions.)\n\n There is a known problem that this patch does not yet solve where\n registering a return probe flush_old_exec or flush_thread will put us\n in a bad state. Most likely the best way to handle this is to not allow\n registering return probes on these two functions.\n\n (Significant change)\n\nThis patch series applies to the 2.6.12-rc6-mm1 kernel, and provides:\n * kernel/kprobes.c changes\n * i386 patch of existing return probes implementation\n * x86_64 patch of existing return probe implementation\n * ia64 implementation\n * ppc64 implementation (provided by Ananth)\n\nThis patch implements the architecture independant changes for a reworking\nof the kprobes based function return probes design. Changes include:\n\n * Removing functions for querying a return probe instance off a stack address\n * Removing the stack_addr field from the kretprobe_instance definition,\n and adding a task pointer\n * Adding architecture specific initialization via arch_init()\n * Removing extern definitions for the architecture trampoline functions\n (this isn\u0027t needed anymore since the architecture handles the\n initialization of the kprobe in the return probe trampoline function.)\n\nSigned-off-by: Rusty Lynch \u003crusty.lynch@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9ec4b1f356b3bad928ae8e2aa9caebfa737d52df", "tree": "24d27ffed66595a9d864448ec53200ca1745f62c", "parents": [ "d3b8a1a8496c83bc4a3cc76505c29255af15572c" ], "author": { "name": "Ananth N Mavinakayanahalli", "email": "ananth@in.ibm.com", "time": "Mon Jun 27 15:17:01 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Mon Jun 27 15:23:52 2005 -0700" }, "message": "[PATCH] kprobes: fix single-step out of line - take2\n\nNow that PPC64 has no-execute support, here is a second try to fix the\nsingle step out of line during kprobe execution. Kprobes on x86_64 already\nsolved this problem by allocating an executable page and using it as the\nscratch area for stepping out of line. Reuse that.\n\nSigned-off-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "22e2c507c301c3dbbcf91b4948b88f78842ee6c9", "tree": "9a97c91d1362e69703aa286021daffb8a5456f4c", "parents": [ "020f46a39eb7b99a575b9f4d105fce2b142acdf1" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon Jun 27 10:55:12 2005 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Mon Jun 27 14:33:29 2005 -0700" }, "message": "[PATCH] Update cfq io scheduler to time sliced design\n\nThis updates the CFQ io scheduler to the new time sliced design (cfq\nv3). It provides full process fairness, while giving excellent\naggregate system throughput even for many competing processes. It\nsupports io priorities, either inherited from the cpu nice value or set\ndirectly with the ioprio_get/set syscalls. The latter closely mimic\nset/getpriority.\n\nThis import is based on my latest from -mm.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2031d0f586839bc68f35bcf8580b18947f8491d4", "tree": "e317615b4cb62350edeea0afe0a4fc94152cee29", "parents": [ "98e7f29418a4931f97e6b78d1ef3a47103fe6cd5", "3e1d1d28d99dabe63c64f7f40f1ca1d646de1f73" ], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 17:16:53 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 17:16:53 2005 -0700" }, "message": "Merge Christoph\u0027s freeze cleanup patch\n" }, { "commit": "3e1d1d28d99dabe63c64f7f40f1ca1d646de1f73", "tree": "d1e7c1e2e8902072042aefc3a7976b271cf76021", "parents": [ "b3e112bcc19abd8e9657dca34a87316786e096f3" ], "author": { "name": "Christoph Lameter", "email": "christoph@lameter.com", "time": "Fri Jun 24 23:13:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 17:10:13 2005 -0700" }, "message": "[PATCH] Cleanup patch for process freezing\n\n1. Establish a simple API for process freezing defined in linux/include/sched.h:\n\n frozen(process)\t\tCheck for frozen process\n freezing(process)\t\tCheck if a process is being frozen\n freeze(process)\t\tTell a process to freeze (go to refrigerator)\n thaw_process(process)\tRestart process\n frozen_process(process)\tProcess is frozen now\n\n2. Remove all references to PF_FREEZE and PF_FROZEN from all\n kernel sources except sched.h\n\n3. Fix numerous locations where try_to_freeze is manually done by a driver\n\n4. Remove the argument that is no longer necessary from two function calls.\n\n5. Some whitespace cleanup\n\n6. Clear potential race in refrigerator (provides an open window of PF_FREEZE\n cleared before setting PF_FROZEN, recalc_sigpending does not check\n PF_FROZEN).\n\nThis patch does not address the problem of freeze_processes() violating the rule\nthat a task may only modify its own flags by setting PF_FREEZE. This is not clean\nin an SMP environment. freeze(process) is therefore not SMP safe!\n\nSigned-off-by: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8c0e33c133021ee241e9d51255b9fb18eb34ef0e", "tree": "30ddff7f7cf375c36d11d49352365a42b25e1def", "parents": [ "f45494480f31342125870c1a184999d7c5a59471" ], "author": { "name": "Nick Wilson", "email": "njw@osdl.org", "time": "Sat Jun 25 14:59:00 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:25:02 2005 -0700" }, "message": "[PATCH] Use ALIGN to remove duplicate code\n\nThis patch makes use of ALIGN() to remove duplicate round-up code.\n\nSigned-off-by: Nick Wilson \u003cnjw@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5a6b454f8024bac68495b6cd51615feb0b54baa9", "tree": "5514a66b49478b01c67527bb34b0f16aae4511e7", "parents": [ "486fd404fbc840e28a959d2f2842b6c46ed6b250" ], "author": { "name": "Jesper Juhl", "email": "juhl-lkml@dif.dk", "time": "Sat Jun 25 14:58:48 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:59 2005 -0700" }, "message": "[PATCH] remove redundant NULL check before before kfree() in kernel/sysctl.c\n\nSigned-off-by: Jesper Juhl \u003cjuhl-lkml@dif.dk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "96ec3efdcbaea4f403f2a5f1204edbf903a01961", "tree": "e76ac60d389be7e7ed40e5bf2cd63f46b84b7e87", "parents": [ "b20f3ae5f0efe1812d2a1278e2127a335884d445" ], "author": { "name": "Domen Puncer", "email": "domen@coderock.org", "time": "Sat Jun 25 14:58:43 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:58 2005 -0700" }, "message": "[PATCH] kernel/timer: fix msleep_interruptible() comment\n\nThe comment for msleep_interruptible() is wrong, as it will ignore\nwait-queue events, but will wake up early for signals.\n\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nSigned-off-by: Domen Puncer \u003cdomen@coderock.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "72414d3f1d22fc3e311b162fca95c430048d38ce", "tree": "46850947c1602357dd3c51d8d6ebaa5805507f9f", "parents": [ "4f339ecb30c759f94a29992d4635d9194132b6cf" ], "author": { "name": "Maneesh Soni", "email": "maneesh@in.ibm.com", "time": "Sat Jun 25 14:58:28 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:55 2005 -0700" }, "message": "[PATCH] kexec code cleanup\n\no Following patch provides purely cosmetic changes and corrects CodingStyle\n guide lines related certain issues like below in kexec related files\n\n o braces for one line \"if\" statements, \"for\" loops,\n o more than 80 column wide lines,\n o No space after \"while\", \"for\" and \"switch\" key words\n\no Changes:\n o take-2: Removed the extra tab before \"case\" key words.\n o take-3: Put operator at the end of line and space before \"*/\"\n\nSigned-off-by: Maneesh Soni \u003cmaneesh@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6e274d144302068a00794ec22e73520c0615cb6f", "tree": "f7ea59ea47d3c5676fbac8d39e8deaa1f94146ae", "parents": [ "86b1ae38c0a62409dc862a28e3f08920f55f944b" ], "author": { "name": "Alexander Nyberg", "email": "alexn@telia.com", "time": "Sat Jun 25 14:58:26 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:54 2005 -0700" }, "message": "[PATCH] kdump: Use real pt_regs from exception\n\nMakes kexec_crashdump() take a pt_regs * as an argument. This allows to\nget exact register state at the point of the crash. If we come from direct\npanic assertion NULL will be passed and the current registers saved before\ncrashdump.\n\nThis hooks into two places:\ndie(): check the conditions under which we will panic when calling\ndo_exit and go there directly with the pt_regs that caused the fatal\nfault.\n\ndie_nmi(): If we receive an NMI lockup while in the kernel use the\npt_regs and go directly to crash_kexec(). We\u0027re probably nested up badly\nat this point so this might be the only chance to escape with proper\ninformation.\n\nSigned-off-by: Alexander Nyberg \u003calexn@telia.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "666bfddbe8b8fd4fd44617d6c55193d5ac7edb29", "tree": "74b03732131c51dbfd79a06f97d5ccec8894f9f3", "parents": [ "2030eae52b416a9a9f0ffda74c982b7f1e19496d" ], "author": { "name": "Vivek Goyal", "email": "vgoyal@in.ibm.com", "time": "Sat Jun 25 14:58:21 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:53 2005 -0700" }, "message": "[PATCH] kdump: Access dump file in elf format (/proc/vmcore)\n\nFrom: \"Vivek Goyal\" \u003cvgoyal@in.ibm.com\u003e\n\no Support for /proc/vmcore interface. This interface exports elf core image\n either in ELF32 or ELF64 format, depending on the format in which elf headers\n have been stored by crashed kernel.\no Added support for CONFIG_VMCORE config option.\no Removed the dependency on /proc/kcore.\n\nFrom: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\n\nThis patch has been refactored to more closely match the prevailing style in\nthe affected files. And to clearly indicate the dependency between\n/proc/kcore and proc/vmcore.c\n\nFrom: Hariprasad Nellitheertha \u003chari@in.ibm.com\u003e\n\nThis patch contains the code that provides an ELF format interface to the\nprevious kernel\u0027s memory post kexec reboot.\n\nSigned off by Hariprasad Nellitheertha \u003chari@in.ibm.com\u003e\nSigned-off-by: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Vivek Goyal \u003cvgoyal@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2030eae52b416a9a9f0ffda74c982b7f1e19496d", "tree": "3715724cb19e9165873635fcdf7e9e30d86f7710", "parents": [ "60e64d46a58236e3c718074372cab6a5b56a3b15" ], "author": { "name": "Vivek Goyal", "email": "vgoyal@in.ibm.com", "time": "Sat Jun 25 14:58:20 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:53 2005 -0700" }, "message": "[PATCH] Retrieve elfcorehdr address from command line\n\nThis patch adds support for retrieving the address of elf core header if one\nis passed in command line.\n\nSigned-off-by: Vivek Goyal \u003cvgoyal@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "60e64d46a58236e3c718074372cab6a5b56a3b15", "tree": "194e5fa7a53a1ac4a106b1527ec69cf3c2179bb0", "parents": [ "5f016456c96868c27df248a54d1cc919e7b70a23" ], "author": { "name": "Vivek Goyal", "email": "vgoyal@in.ibm.com", "time": "Sat Jun 25 14:58:19 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:53 2005 -0700" }, "message": "[PATCH] kdump: Routines for copying dump pages\n\nThis patch provides the interfaces necessary to read the dump contents,\ntreating it as a high memory device.\n\nSigned off by Hariprasad Nellitheertha \u003chari@in.ibm.com\u003e\nSigned-off-by: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Vivek Goyal \u003cvgoyal@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "625f1c8219d95300ed32e4c67eb62a50ded095ba", "tree": "2e303a649604cabc922f2ade67435eaf83bbfa98", "parents": [ "cf13f0eaffa31bf6a145c53c589654b11c72ddc7" ], "author": { "name": "Vivek Goyal", "email": "vgoyal@in.ibm.com", "time": "Sat Jun 25 14:58:12 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:51 2005 -0700" }, "message": "[PATCH] Kdump: Export crash notes section address through sysfs\n\no Following patch exports kexec global variable \"crash_notes\" to user space\n through sysfs as kernel attribute in /sys/kernel.\n\nSigned-off-by: Maneesh Soni \u003cmaneesh@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "50cccc699ed849d31c9e3f7643db33edade20e4e", "tree": "7cd6e1adfa7b42a7be2815361e5d41c2fd89ee48", "parents": [ "dc009d92435f99498cbc579ce76bf28e837e2c14" ], "author": { "name": "Vivek Goyal", "email": "vgoyal@in.ibm.com", "time": "Sat Jun 25 14:57:55 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:48 2005 -0700" }, "message": "[PATCH] Kexec on panic vmlinux initrd fix\n\nThis is a minor bug fix in kexec to resolve the problem of loading panic\nkernel with initrd.\n\no Problem: Loading a capture kenrel fails if initrd is also being loaded.\n This has been observed for vmlinux image for kexec on panic case.\n\no This patch fixes the problem. In segment location and size verification\n logic, minor correction has been done. Segment memory end (mend) should be\n mstart + memsz - 1. This one byte offset was source of failure for initrd\n loading which was being loaded at hole boundary.\n\nSigned-off-by: Vivek Goyal \u003cvgoyal@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dc009d92435f99498cbc579ce76bf28e837e2c14", "tree": "2ba8732b28225593d996b8faa079dc6ab4bbc9bc", "parents": [ "d0537508a9921efced238b20967e50e519ac34af" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Sat Jun 25 14:57:52 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:48 2005 -0700" }, "message": "[PATCH] kexec: add kexec syscalls\n\nThis patch introduces the architecture independent implementation the\nsys_kexec_load, the compat_sys_kexec_load system calls.\n\nKexec on panic support has been integrated into the core patch and is\nrelatively clean.\n\nIn addition the hopefully architecture independent option\ncrashkernel\u003dsize@location has been docuemented. It\u0027s purpose is to reserve\nspace for the panic kernel to live, and where no DMA transfer will ever be\nsetup to access.\n\nSigned-off-by: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Alexander Nyberg \u003calexn@telia.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Vivek Goyal \u003cvgoyal@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f8cbd99bd3a023db8d6356d19a5f6f539d367327", "tree": "f7472cc26a2a1dad631c35a4eb6d0c10cf8cd66e", "parents": [ "f704f56af95bec3c1ca719d64d0becef74d40899" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jun 25 14:57:39 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:45 2005 -0700" }, "message": "[PATCH] sched: voluntary kernel preemption\n\nThis patch adds a new preemption model: \u0027Voluntary Kernel Preemption\u0027. The\n3 models can be selected from a new menu:\n\n (X) No Forced Preemption (Server)\n ( ) Voluntary Kernel Preemption (Desktop)\n ( ) Preemptible Kernel (Low-Latency Desktop)\n\nwe still default to the stock (Server) preemption model.\n\nVoluntary preemption works by adding a cond_resched()\n(reschedule-if-needed) call to every might_sleep() check. It is lighter\nthan CONFIG_PREEMPT - at the cost of not having as tight latencies. It\nrepresents a different latency/complexity/overhead tradeoff.\n\nIt has no runtime impact at all if disabled. Here are size stats that show\nhow the various preemption models impact the kernel\u0027s size:\n\n text data bss dec hex filename\n 3618774 547184 179896 4345854 424ffe vmlinux.stock\n 3626406 547184 179896 4353486 426dce vmlinux.voluntary +0.2%\n 3748414 548640 179896 4476950 445016 vmlinux.preempt +3.5%\n\nvoluntary-preempt is +0.2% of .text, preempt is +3.5%.\n\nThis feature has been tested for many months by lots of people (and it\u0027s\nalso included in the RHEL4 distribution and earlier variants were in Fedora\nas well), and it\u0027s intended for users and distributions who dont want to\nuse full-blown CONFIG_PREEMPT for one reason or another.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f704f56af95bec3c1ca719d64d0becef74d40899", "tree": "f024287878246703cf28f738d2c553c476c53c34", "parents": [ "cc19ca86a023fcd552c78e77a7be6ce271f92a28" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jun 25 14:57:38 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:45 2005 -0700" }, "message": "[PATCH] enable PREEMPT_BKL on !PREEMPT+SMP too\n\nThe only sane way to clean up the current 3 lock_kernel() variants seems to\nbe to remove the spinlock-based BKL implementations altogether, and to keep\nthe semaphore-based one only. If we dont want to do that for whatever\nreason then i\u0027m afraid we have to live with the current complexity. (but\ni\u0027m open for other cleanup suggestions as well.)\n\nTo explore this possibility we\u0027ll (at a minimum) have to know whether the\nsemaphore-based BKL works fine on plain SMP too. The patch below enables\nthis.\n\nThe patch may make sense in isolation as well, as it might bring\nperformance benefits: code that would formerly spin on the BKL spinlock\nwill now schedule away and give up the CPU. It might introduce performance\nregressions as well, if any performance-critical code uses the BKL heavily\nand gets overscheduled due to the semaphore. I very much hope there is no\nsuch performance-critical codepath left though.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cc19ca86a023fcd552c78e77a7be6ce271f92a28", "tree": "b4e9c9b02b73105d363070c49a765208b99cee1a", "parents": [ "7f1867a5b3dc3034cbea403b229d65eed4a7f62e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jun 25 14:57:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:45 2005 -0700" }, "message": "[PATCH] consolidate PREEMPT options into kernel/Kconfig.preempt\n\nThis patch consolidates the CONFIG_PREEMPT and CONFIG_PREEMPT_BKL\npreemption options into kernel/Kconfig.preempt. This, besides reducing\nsource-code, also enables more centralized tweaking of preemption related\noptions.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "85d7b94981e2e919697bc235aad7367b33c3864b", "tree": "79d7705a897abde11b5f2f967bf24487aaeea354", "parents": [ "1a20ff27ef75d866730ee796acd811a925af762f" ], "author": { "name": "Dinakar Guniguntala", "email": "dino@in.ibm.com", "time": "Sat Jun 25 14:57:34 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:45 2005 -0700" }, "message": "[PATCH] Dynamic sched domains: cpuset changes\n\nAdds the core update_cpu_domains code and updated cpusets documentation\n\nSigned-off-by: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1a20ff27ef75d866730ee796acd811a925af762f", "tree": "a9e6acd72db03cfec5fdaee8cfab231032216581", "parents": [ "37e4ab3f0cba13adf3535d373fd98e5ee47b5410" ], "author": { "name": "Dinakar Guniguntala", "email": "dino@in.ibm.com", "time": "Sat Jun 25 14:57:33 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:45 2005 -0700" }, "message": "[PATCH] Dynamic sched domains: sched changes\n\nThe following patches add dynamic sched domains functionality that was\nextensively discussed on lkml and lse-tech. I would like to see this added to\n-mm\n\no The main advantage with this feature is that it ensures that the scheduler\n load balacing code only balances against the cpus that are in the sched\n domain as defined by an exclusive cpuset and not all of the cpus in the\n system. This removes any overhead due to load balancing code trying to\n pull tasks outside of the cpu exclusive cpuset only to be prevented by\n the tasks\u0027 cpus_allowed mask.\no cpu exclusive cpusets are useful for servers running orthogonal\n workloads such as RT applications requiring low latency and HPC\n applications that are throughput sensitive\n\no It provides a new API partition_sched_domains in sched.c\n that makes dynamic sched domains possible.\no cpu_exclusive cpusets sets are now associated with a sched domain.\n Which means that the users can dynamically modify the sched domains\n through the cpuset file system interface\no ia64 sched domain code has been updated to support this feature as well\no Currently, this does not support hotplug. (However some of my tests\n indicate hotplug+preempt is currently broken)\no I have tested it extensively on x86.\no This should have very minimal impact on performance as none of\n the fast paths are affected\n\nSigned-off-by: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Matthew Dobson \u003ccolpatch@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "37e4ab3f0cba13adf3535d373fd98e5ee47b5410", "tree": "8891a73f2a6d4257835064ab45d167154abad71f", "parents": [ "a3464a102a69a4e00efb0a763e274ce290995b4b" ], "author": { "name": "Olivier Croquette", "email": "ocroquette@free.fr", "time": "Sat Jun 25 14:57:32 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:44 2005 -0700" }, "message": "[PATCH] Changing RT priority without CAP_SYS_NICE\n\nPresently, a process without the capability CAP_SYS_NICE can not change\nits own policy, which is OK.\n\nBut it can also not decrease its RT priority (if scheduled with policy\nSCHED_RR or SCHED_FIFO), which is what this patch changes.\n\nThe rationale is the same as for the nice value: a process should be\nable to require less priority for itself. Increasing the priority is\nstill not allowed.\n\nThis is for example useful if you give a multithreaded user process a RT\npriority, and the process would like to organize its internal threads\nusing priorities also. Then you can give the process the highest\npriority needed N, and the process starts its threads with lower\npriorities: N-1, N-2...\n\nThe POSIX norm says that the permissions are implementation specific, so\nI think we can do that.\n\nIn a sense, it makes the permissions consistent whatever the policy is:\nwith this patch, process scheduled by SCHED_FIFO, SCHED_RR and\nSCHED_OTHER can all decrease their priority.\n\nFrom: Ingo Molnar \u003cmingo@elte.hu\u003e\n\ncleaned up and merged to -mm.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a3464a102a69a4e00efb0a763e274ce290995b4b", "tree": "63a9301d4a02dfcefd8dff70f033c634aa93bb2f", "parents": [ "77391d71681d05d2f4502f91ad62618522abf624" ], "author": { "name": "Chen Shang", "email": "shangcs@gmail.com", "time": "Sat Jun 25 14:57:31 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:44 2005 -0700" }, "message": "[PATCH] sched: micro-optimize task requeueing in schedule()\n\nmicro-optimize task requeueing in schedule() \u0026 clean up recalc_task_prio().\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "77391d71681d05d2f4502f91ad62618522abf624", "tree": "e8931edb38a4ef3b7eb9e5ec7d25f7128e049994", "parents": [ "476d139c218e44e045e4bc6d4cc02b010b343939" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Jun 25 14:57:30 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:44 2005 -0700" }, "message": "[PATCH] sched: relax pinned balancing\n\nThe maximum rebalance interval allowed by the multiprocessor balancing\nbackoff is often not large enough to handle corner cases where there are\nlots of tasks pinned on a CPU. Suresh reported:\n\n\tI see system livelock\u0027s if for example I have 7000 processes\n\tpinned onto one cpu (this is on the fastest 8-way system I\n\thave access to).\n\nAfter this patch, the machine is reported to go well above this number.\n\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "476d139c218e44e045e4bc6d4cc02b010b343939", "tree": "82a6537b829b2b35156fba5a312f4e44273a4356", "parents": [ "674311d5b411e9042df4fdf7aef0b3c8217b6240" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Jun 25 14:57:29 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:44 2005 -0700" }, "message": "[PATCH] sched: consolidate sbe sbf\n\nConsolidate balance-on-exec with balance-on-fork. This is made easy by the\nsched-domains RCU patches.\n\nAs well as the general goodness of code reduction, this allows the runqueues\nto be unlocked during balance-on-fork.\n\nschedstats is a problem. Maybe just have balance-on-event instead of\ndistinguishing fork and exec?\n\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "674311d5b411e9042df4fdf7aef0b3c8217b6240", "tree": "4ee6b739629e7fc33b519fd087a116b4fa33a217", "parents": [ "3dbd5342074a1e570ec84edf859deb9be588006d" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Jun 25 14:57:27 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:44 2005 -0700" }, "message": "[PATCH] sched: RCU domains\n\nOne of the problems with the multilevel balance-on-fork/exec is that it needs\nto jump through hoops to satisfy sched-domain\u0027s locking semantics (that is,\nyou may traverse your own domain when not preemptable, and you may traverse\nothers\u0027 domains when holding their runqueue lock).\n\nbalance-on-exec had to potentially migrate between more than one CPU before\nfinding a final CPU to migrate to, and balance-on-fork needed to potentially\ntake multiple runqueue locks.\n\nSo bite the bullet and make sched-domains go completely RCU. This actually\nsimplifies the code quite a bit.\n\nFrom: Ingo Molnar \u003cmingo@elte.hu\u003e\n\nschedstats RCU fix, and a nice comment on for_each_domain, from Ingo.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3dbd5342074a1e570ec84edf859deb9be588006d", "tree": "a5f0aa3f4152b409d9b109766f55020c28bbb9af", "parents": [ "245af2c7870bd5940f7bfad19a0a03b32751fbc5" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Jun 25 14:57:26 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:43 2005 -0700" }, "message": "[PATCH] sched: multilevel sbe sbf\n\nThe fundamental problem that Suresh has with balance on exec and fork is that\nit only tries to balance the top level domain with the flag set.\n\nThis was worked around by removing degenerate domains, but is still a problem\nif people want to start using more complex sched-domains, especially\nmultilevel NUMA that ia64 is already using.\n\nThis patch makes balance on fork and exec try balancing over not just the top\nmost domain with the flag set, but all the way down the domain tree.\n\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "245af2c7870bd5940f7bfad19a0a03b32751fbc5", "tree": "7c54e2b290a6b1a9fd15fa99f194c7ed5e9f0a11", "parents": [ "41c7ce9ad9a859871dffbe7dbc8b1f9571724e3c" ], "author": { "name": "Suresh Siddha", "email": "suresh.b.siddha@intel.com", "time": "Sat Jun 25 14:57:25 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:43 2005 -0700" }, "message": "[PATCH] sched: remove degenerate domains\n\nRemove degenerate scheduler domains during the sched-domain init.\n\nFor example on x86_64, we always have NUMA configured in. On Intel EM64T\nsystems, top most sched domain will be of NUMA and with only one sched_group\nin it.\n\nWith fork/exec balances(recent Nick\u0027s fixes in -mm tree), we always endup\ntaking wrong decisions because of this topmost domain (as it contains only one\ngroup and find_idlest_group always returns NULL). We will endup loading HT\npackage completely first, letting active load balance kickin and correct it.\n\nIn general, this patch also makes sense with out recent Nick\u0027s fixes in -mm.\n\nFrom: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\n\nModified to account for more than just sched_groups when scanning for\ndegenerate domains by Nick Piggin. And allow a runqueue\u0027s sd to go NULL\nrather than keep a single degenerate domain around (this happens when you run\nwith maxcpus\u003d1).\n\nSigned-off-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "41c7ce9ad9a859871dffbe7dbc8b1f9571724e3c", "tree": "e6046310efc8b0c3ec71922eb86ea2d3da11b2f7", "parents": [ "4866cde064afbb6c2a488c265e696879de616daa" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Jun 25 14:57:24 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:43 2005 -0700" }, "message": "[PATCH] sched: null domains\n\nFix the last 2 places that directly access a runqueue\u0027s sched-domain and\nassume it cannot be NULL.\n\nThat allows the use of NULL for domain, instead of a dummy domain, to signify\nno balancing is to happen. No functional changes.\n\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4866cde064afbb6c2a488c265e696879de616daa", "tree": "6effad1ab6271129fc607b98273086409876563a", "parents": [ "48c08d3f8ff94fa118187e4d8d4a5707bb85e59d" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Jun 25 14:57:23 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Jun 25 16:24:43 2005 -0700" }, "message": "[PATCH] sched: cleanup context switch locking\n\nInstead of requiring architecture code to interact with the scheduler\u0027s\nlocking implementation, provide a couple of defines that can be used by the\narchitecture to request runqueue unlocked context switches, and ask for\ninterrupts to be enabled over the context switch.\n\nAlso replaces the \"switch_lock\" used by these architectures with an oncpu\nflag (note, not a potentially slow bitflag). This eliminates one bus\nlocked memory operation when context switching, and simplifies the\ntask_running function.\n\nSigned-off-by: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "48c08d3f8ff94fa118187e4d8d4a5707bb85e59d" }