)]}' { "log": [ { "commit": "85ba2d862e521375a8ee01526c5c46b1f24bb4af", "tree": "f098555cb580b2864f145aa845b574f07d2cf694", "parents": [ "1f5a4ad97a0e7b663d527ecc02aabe203d000d91" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: wait_task_inactive\n\nThis extends wait_task_inactive() with a new argument so it can be used in\na \"soft\" mode where it will check for the task changing state unexpectedly\nand back off. There is no change to existing callers. This lays the\ngroundwork to allow robust, noninvasive tracing that can try to sample a\nblocked thread but back off safely if it wakes up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b787f7ba677840da16a2228c16571ce8a1fcb799", "tree": "b1838c4ae7f38c00efc2375871a255275500f245", "parents": [ "2b2a1ff64afbadac842bbc58c5166962cf4f7664" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: force signal_pending()\n\nThis defines a new hook tracehook_force_sigpending() that lets tracing\ncode decide to force TIF_SIGPENDING on in recalc_sigpending().\n\nThis is not used yet, so it compiles away to nothing for now. It lays the\ngroundwork for new tracing code that can interrupt a task synthetically\nwithout actually sending a signal.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2b2a1ff64afbadac842bbc58c5166962cf4f7664", "tree": "660640eb95117ce6f7436331f23f73805abced10", "parents": [ "fa00b80b3c41a845b3d56f866fb40a2e98754c51" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: death\n\nThis moves the ptrace logic in task death (exit_notify) into tracehook.h\ninlines. Some code is rearranged slightly to make things nicer. There is\nno change, only cleanup.\n\nThere is one hook called with the tasklist_lock write-locked, as ptrace\nneeds. There is also a new hook called after exit_state changes and\nwithout locks. This is a better place for tracing work to be in the\nfuture, since it doesn\u0027t delay the whole system with locking.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa00b80b3c41a845b3d56f866fb40a2e98754c51", "tree": "819d6966cad1fdeef3f32497c696afb203e3720b", "parents": [ "7bcf6a2ca5f639b038c48711ebe6c4eca2036641" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: job control\n\nThis defines the tracehook_notify_jctl() hook to formalize the ptrace\neffects on the job control notifications. There is no change, only\ncleanup.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7bcf6a2ca5f639b038c48711ebe6c4eca2036641", "tree": "4219a0725d581310f729d4616361febd700f0574", "parents": [ "283d7559e7712f95a05331eb0a85394c6368101b" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: get_signal_to_deliver\n\nThis defines the tracehook_get_signal() hook to allow tracing code to slip\nin before normal signal dequeuing. This lays the groundwork for new\ntracing features that can inject synthetic signals outside the normal\nqueue or control the disposition of delivered signals. The calling\nconvention lets tracehook_get_signal() decide both exactly what will\nhappen and what signal number to report in the handler/exit.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "445a91d2fe3667fb8fc251433645f686933cf56a", "tree": "496f0715ba3079f3bf98e9808480fe7f25872b16", "parents": [ "35de254dc60f91004b3b5ebb1fc7b2c3093d6032" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: tracehook_consider_fatal_signal\n\nThis defines tracehook_consider_fatal_signal() has a fine-grained hook for\ndeciding to skip the special cases for a fatal signal, as ptrace does.\nThere is no change, only cleanup.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "35de254dc60f91004b3b5ebb1fc7b2c3093d6032", "tree": "101e174247bb3174c8abe0fb8d1405ed6a4db6d1", "parents": [ "c45aea27617d6a1e0aacddc3b0233f704222fcbd" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:51 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: tracehook_consider_ignored_signal\n\nThis defines tracehook_consider_ignored_signal() has a fine-grained hook\nfor deciding to prevent the normal short-circuit of sending an ignored\nsignal, as ptrace does. There is no change, only cleanup.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dae33574dcf5211e1f43c7e45fa29f73ba3e00cb", "tree": "090eb4af17451836fb39cebf57fbee64a6bd23b5", "parents": [ "daded34be96b1975ff8539ff62ad8b158ce7d842" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: release_task\n\nThis moves the ptrace-related logic from release_task into tracehook.h and\nptrace.h inlines. It provides clean hooks both before and after locking\ntasklist_lock, for future tracing logic to do more cleanup without the\nlock.\n\nThis also changes release_task() itself in the rare \"zap_leader\" case to\nset the leader to EXIT_DEAD before iterating. This maintains the\ninvariant that release_task() only ever handles a task in EXIT_DEAD. This\nis a common-sense invariant that is already always true except in this one\narcane case of zombie leader whose parent ignores SIGCHLD.\n\nThis change is harmless and only costs one store in this one rare case.\nIt keeps the expected state more consisently sane, which is nicer when\ndebugging weirdness in release_task(). It also lets some future code in\nthe tracehook entry points rely on this invariant for bookkeeping.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "daded34be96b1975ff8539ff62ad8b158ce7d842", "tree": "8cab5e809e513efd1a403e587a53a1e75365d1fc", "parents": [ "09a05394fe2448a4139b014936330af23fa7ec83" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: vfork-done\n\nThis moves the PTRACE_EVENT_VFORK_DONE tracing into a tracehook.h inline,\ntracehook_report_vfork_done(). The change has no effect, just clean-up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "09a05394fe2448a4139b014936330af23fa7ec83", "tree": "a7b3f0ffe271d4d35c3b98a99183d8792ea4db53", "parents": [ "30199f5a46aee204bf437a4f5b0740f3efe448b7" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: clone\n\nThis moves all the ptrace initialization and tracing logic for task\ncreation into tracehook.h and ptrace.h inlines. It reorganizes the code\nslightly, but should not change any behavior.\n\nThere are four tracehook entry points, at each important stage of task\ncreation. This keeps the interface from the core fork.c code fairly\nclean, while supporting the complex setup required for ptrace or something\nlike it.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "30199f5a46aee204bf437a4f5b0740f3efe448b7", "tree": "9855ecf45727f6c41e9d75d4a5ac68c35546c14d", "parents": [ "ff1188646c6870f336e910fb894eeed74f50471f" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: exit\n\nThis moves the PTRACE_EVENT_EXIT tracing into a tracehook.h inline,\ntracehook_report_exec(). The change has no effect, just clean-up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ff1188646c6870f336e910fb894eeed74f50471f", "tree": "7e0c7ecad4ab3f9c2f20540b289b4cd932453e67", "parents": [ "6341c393fcc37d58727865f1ee2f65e632e9d4f0" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:45 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: unexport ptrace_notify\n\nThe ptrace_notify() function should not be called by any modules. It was\nonly ever exported to be called by binfmt exec functions. But that is no\nlonger necessary since fs/exec.c deals with that generically now. There\nshould be no calls to ptrace_notify() from outside the core kernel.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "261c40c1191ad8d7a2e49fa2bb5f6a84e3d44b10", "tree": "31660b2632ffaa1ea43107eb941670d5c95d3fce", "parents": [ "4c8573e25f27b60b495aaa23089032f685ffd5ba" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jul 25 19:45:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:07 2008 -0700" }, "message": "use WARN() in kernel/irq/chip.c\n\nUse WARN() instead of a printk+WARN_ON() pair; this way the message\nbecomes part of the warning section for better reporting/collection.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b8c512f6190e313df69060bae4a161c5c044e272", "tree": "4b36b2ff66f5139141058d8d63f3dc219281bb5d", "parents": [ "51cc50685a4275c6a02653670af9f108a64e01cf" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jul 25 19:45:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:07 2008 -0700" }, "message": "Use WARN() in kernel/irq/manage.c\n\nReplace a printk+WARN_ON() by a WARN(); this increases the chance of the\nstring making it into the bugreport (ie: it goes inside the\n---[ cut here ]--- section)\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "51cc50685a4275c6a02653670af9f108a64e01cf", "tree": "819d47bd2b0c8a9d1835d863853804b0a0242b97", "parents": [ "d91958815d214ea365b98cbff6215383897edcb6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Jul 25 19:45:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:07 2008 -0700" }, "message": "SL*B: drop kmem cache argument from constructor\n\nKmem cache passed to constructor is only needed for constructors that are\nthemselves multiplexeres. Nobody uses this \"feature\", nor does anybody uses\npassed kmem cache in non-trivial way, so pass only pointer to object.\n\nNon-trivial places are:\n\tarch/powerpc/mm/init_64.c\n\tarch/powerpc/mm/hugetlbpage.c\n\nThis is flag day, yes.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Jon Tollefson \u003ckniht@linux.vnet.ibm.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\n[akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c]\n[akpm@linux-foundation.org: fix mm/slab.c]\n[akpm@linux-foundation.org: fix ubifs]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "20d8b67c06fa5e74f44e80b0a0fd68c8327f7c6a", "tree": "7162455643e7ce45e253033bf648bf41d9796dd9", "parents": [ "7babe8db99d305340cf4828ce1f5a1481d5622ef" ], "author": { "name": "Eduard - Gabriel Munteanu", "email": "eduard.munteanu@linux360.ro", "time": "Fri Jul 25 19:45:12 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "relay: add buffer-only channels; useful for early logging\n\nAllows one to create and use a channel with no associated files. Files\ncan be initialized later. This is useful in scenarios such as logging in\nearly code, before VFS is up. Therefore, such channels can be created and\nused as soon as kmem_cache_init() completed.\n\nThis is needed by kmemtrace to do tracing in early kernel code.\n\n[kosaki.motohiro@jp.fujitsu.com: build fix]\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7babe8db99d305340cf4828ce1f5a1481d5622ef", "tree": "fdac7a084646bb6d125ebc62b0b75806e45d1025", "parents": [ "c2147a5092cfe13dbf3210e54e8a622015edeecc" ], "author": { "name": "Eduard - Gabriel Munteanu", "email": "eduard.munteanu@linux360.ro", "time": "Fri Jul 25 19:45:11 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "Full conversion to early_initcall() interface, remove old interface\n\nA previous patch added the early_initcall(), to allow a cleaner hooking of\npre-SMP initcalls. Now we remove the older interface, converting all\nexisting users to the new one.\n\n[akpm@linux-foundation.org: cleanups]\n[akpm@linux-foundation.org: build fix]\n[kosaki.motohiro@jp.fujitsu.com: warning fix]\n[kosaki.motohiro@jp.fujitsu.com: warning fix]\nSigned-off-by: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "89081d17f7bb81d89fa1aa9b70f821c5cf4d39e9", "tree": "1835fa64801fee048c8074ae4d63b0a7f4b14ee3", "parents": [ "3ab83521378268044a448113c6aa9a9e245f4d2f" ], "author": { "name": "Huang Ying", "email": "ying.huang@intel.com", "time": "Fri Jul 25 19:45:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "kexec jump: save/restore device state\n\nThis patch implements devices state save/restore before after kexec.\n\nThis patch together with features in kexec_jump patch can be used for\nfollowing:\n\n- A simple hibernation implementation without ACPI support. You can kexec a\n hibernating kernel, save the memory image of original system and shutdown\n the system. When resuming, you restore the memory image of original system\n via ordinary kexec load then jump back.\n\n- Kernel/system debug through making system snapshot. You can make system\n snapshot, jump back, do some thing and make another system snapshot.\n\n- Cooperative multi-kernel/system. With kexec jump, you can switch between\n several kernels/systems quickly without boot process except the first time.\n This appears like swap a whole kernel/system out/in.\n\n- A general method to call program in physical mode (paging turning\n off). This can be used to invoke BIOS code under Linux.\n\nThe following user-space tools can be used with kexec jump:\n\n- kexec-tools needs to be patched to support kexec jump. The patches\n and the precompiled kexec can be download from the following URL:\n source: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-src_git_kh10.tar.bz2\n patches: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-patches_git_kh10.tar.bz2\n binary: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec_git_kh10\n\n- makedumpfile with patches are used as memory image saving tool, it\n can exclude free pages from original kernel memory image file. The\n patches and the precompiled makedumpfile can be download from the\n following URL:\n source: http://khibernation.sourceforge.net/download/release_v10/makedumpfile/makedumpfile-src_cvs_kh10.tar.bz2\n patches: http://khibernation.sourceforge.net/download/release_v10/makedumpfile/makedumpfile-patches_cvs_kh10.tar.bz2\n binary: http://khibernation.sourceforge.net/download/release_v10/makedumpfile/makedumpfile_cvs_kh10\n\n- An initramfs image can be used as the root file system of kexeced\n kernel. An initramfs image built with \"BuildRoot\" can be downloaded\n from the following URL:\n initramfs image: http://khibernation.sourceforge.net/download/release_v10/initramfs/rootfs_cvs_kh10.gz\n All user space tools above are included in the initramfs image.\n\nUsage example of simple hibernation:\n\n1. Compile and install patched kernel with following options selected:\n\nCONFIG_X86_32\u003dy\nCONFIG_RELOCATABLE\u003dy\nCONFIG_KEXEC\u003dy\nCONFIG_CRASH_DUMP\u003dy\nCONFIG_PM\u003dy\nCONFIG_HIBERNATION\u003dy\nCONFIG_KEXEC_JUMP\u003dy\n\n2. Build an initramfs image contains kexec-tool and makedumpfile, or\n download the pre-built initramfs image, called rootfs.gz in\n following text.\n\n3. Prepare a partition to save memory image of original kernel, called\n hibernating partition in following text.\n\n4. Boot kernel compiled in step 1 (kernel A).\n\n5. In the kernel A, load kernel compiled in step 1 (kernel B) with\n /sbin/kexec. The shell command line can be as follow:\n\n /sbin/kexec --load-preserve-context /boot/bzImage --mem-min\u003d0x100000\n --mem-max\u003d0xffffff --initrd\u003drootfs.gz\n\n6. Boot the kernel B with following shell command line:\n\n /sbin/kexec -e\n\n7. The kernel B will boot as normal kexec. In kernel B the memory\n image of kernel A can be saved into hibernating partition as\n follow:\n\n jump_back_entry\u003d`cat /proc/cmdline | tr \u0027 \u0027 \u0027\\n\u0027 | grep kexec_jump_back_entry | cut -d \u0027\u003d\u0027`\n echo $jump_back_entry \u003e kexec_jump_back_entry\n cp /proc/vmcore dump.elf\n\n Then you can shutdown the machine as normal.\n\n8. Boot kernel compiled in step 1 (kernel C). Use the rootfs.gz as\n root file system.\n\n9. In kernel C, load the memory image of kernel A as follow:\n\n /sbin/kexec -l --args-none --entry\u003d`cat kexec_jump_back_entry` dump.elf\n\n10. Jump back to the kernel A as follow:\n\n /sbin/kexec -e\n\n Then, kernel A is resumed.\n\nImplementation point:\n\nTo support jumping between two kernels, before jumping to (executing)\nthe new kernel and jumping back to the original kernel, the devices\nare put into quiescent state, and the state of devices and CPU is\nsaved. After jumping back from kexeced kernel and jumping to the new\nkernel, the state of devices and CPU are restored accordingly. The\ndevices/CPU state save/restore code of software suspend is called to\nimplement corresponding function.\n\nKnown issues:\n\n- Because the segment number supported by sys_kexec_load is limited,\n hibernation image with many segments may not be load. This is\n planned to be eliminated by adding a new flag to sys_kexec_load to\n make a image can be loaded with multiple sys_kexec_load invoking.\n\nNow, only the i386 architecture is supported.\n\nSigned-off-by: Huang Ying \u003cying.huang@intel.com\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3ab83521378268044a448113c6aa9a9e245f4d2f", "tree": "e9e8496577e4b2e994edf204e9a8ae7c026eec95", "parents": [ "7fccf0326536c1b245b98740d489abb9aab69a12" ], "author": { "name": "Huang Ying", "email": "ying.huang@intel.com", "time": "Fri Jul 25 19:45:07 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "kexec jump\n\nThis patch provides an enhancement to kexec/kdump. It implements the\nfollowing features:\n\n- Backup/restore memory used by the original kernel before/after\n kexec.\n\n- Save/restore CPU state before/after kexec.\n\nThe features of this patch can be used as a general method to call program in\nphysical mode (paging turning off). This can be used to call BIOS code under\nLinux.\n\nkexec-tools needs to be patched to support kexec jump. The patches and\nthe precompiled kexec can be download from the following URL:\n\n source: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-src_git_kh10.tar.bz2\n patches: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec-tools-patches_git_kh10.tar.bz2\n binary: http://khibernation.sourceforge.net/download/release_v10/kexec-tools/kexec_git_kh10\n\nUsage example of calling some physical mode code and return:\n\n1. Compile and install patched kernel with following options selected:\n\nCONFIG_X86_32\u003dy\nCONFIG_KEXEC\u003dy\nCONFIG_PM\u003dy\nCONFIG_KEXEC_JUMP\u003dy\n\n2. Build patched kexec-tool or download the pre-built one.\n\n3. Build some physical mode executable named such as \"phy_mode\"\n\n4. Boot kernel compiled in step 1.\n\n5. Load physical mode executable with /sbin/kexec. The shell command\n line can be as follow:\n\n /sbin/kexec --load-preserve-context --args-none phy_mode\n\n6. Call physical mode executable with following shell command line:\n\n /sbin/kexec -e\n\nImplementation point:\n\nTo support jumping without reserving memory. One shadow backup page (source\npage) is allocated for each page used by kexeced code image (destination\npage). When do kexec_load, the image of kexeced code is loaded into source\npages, and before executing, the destination pages and the source pages are\nswapped, so the contents of destination pages are backupped. Before jumping\nto the kexeced code image and after jumping back to the original kernel, the\ndestination pages and the source pages are swapped too.\n\nC ABI (calling convention) is used as communication protocol between\nkernel and called code.\n\nA flag named KEXEC_PRESERVE_CONTEXT for sys_kexec_load is added to\nindicate that the loaded kernel image is used for jumping back.\n\nNow, only the i386 architecture is supported.\n\nSigned-off-by: Huang Ying \u003cying.huang@intel.com\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7fccf0326536c1b245b98740d489abb9aab69a12", "tree": "33344d665a3927d97e105351308b2d425ddd0749", "parents": [ "f1d82698029b92a88f5500b99f66514b6dee2bc3" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Fri Jul 25 19:45:02 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:04 2008 -0700" }, "message": "kernel/kexec.c: make \u0027kimage_terminate\u0027 void\n\nSince kimage_terminate() always returns 0, make it void.\n\nSigned-off-by: WANG Cong \u003cwangcong@zeuux.org\u003e\nSigned-off-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a2e2e3577c3ef2b5dbb866e97e612aae4adfa32f", "tree": "9f0889d3046078e1db7e8310171c7e3a48be42cc", "parents": [ "44ccac13c7f4728cf2992d49384671a176db74dd" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Fri Jul 25 19:44:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:02 2008 -0700" }, "message": "pm selftest: rtc paranoia\n\nCope with a quirk of some RTCs (notably ACPI ones) which aren\u0027t guaranteed\nto implement oneshot behavior when they woke the system from sleeep:\nforcibly disable the alarm, just in case.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9b81361631bbb1d85c99ddec677d42afe516737b", "tree": "20682b5ce245d9a953f316517bd5006cf7ce4f2c", "parents": [ "e44d1b2998d62a1f2f4d7eb17b56ba396535509f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 25 13:02:37 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 11:35:41 2008 -0700" }, "message": "signalfd: fix undefined reference to `compat_sys_signalfd4\u0027 when !CONFIG_SIGNALFD\n\nfix:\n\narch/x86/ia32/built-in.o: In function `ia32_sys_call_table\u0027:\n(.rodata+0xa38): undefined reference to `compat_sys_signalfd4\u0027\n\non !CONFIG_SIGNALFD.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b81f3ea92ba1fa676775677679889dc2a7f03c8b", "tree": "ec2d6dc99c1b6f7372a5d9bd3d3e75b79b2a899b", "parents": [ "9b0975a20af1ff2f367e3b6b7c150eb114c6b500" ], "author": { "name": "Vegard Nossum", "email": "vegard.nossum@gmail.com", "time": "Fri Jul 25 01:48:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "taskstats: remove initialization of static per-cpu variable\n\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nSigned-off-by: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "016ae219b920c4e606088761d3d6070cdf8ba706", "tree": "6bf9035016e8d9131a54cf6343e056a5dcdc74aa", "parents": [ "873b47717732c2f33a4b14de02571a4295a02f0c" ], "author": { "name": "Keika Kobayashi", "email": "kobayashi.kk@ncos.nec.co.jp", "time": "Fri Jul 25 01:48:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "per-task-delay-accounting: update taskstats for memory reclaim delay\n\nAdd members for memory reclaim delay to taskstats, and accumulate them in\n__delayacct_add_tsk() .\n\nSigned-off-by: Keika Kobayashi \u003ckobayashi.kk@ncos.nec.co.jp\u003e\nCc: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "873b47717732c2f33a4b14de02571a4295a02f0c", "tree": "aaef0fe872dbd4ce5c290f3509e5db69f9a3f04a", "parents": [ "3e85ba034deec351f02cb55ff225bbd616463841" ], "author": { "name": "Keika Kobayashi", "email": "kobayashi.kk@ncos.nec.co.jp", "time": "Fri Jul 25 01:48:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "per-task-delay-accounting: add memory reclaim delay\n\nSometimes, application responses become bad under heavy memory load.\nApplications take a bit time to reclaim memory. The statistics, how long\nmemory reclaim takes, will be useful to measure memory usage.\n\nThis patch adds accounting memory reclaim to per-task-delay-accounting for\naccounting the time of do_try_to_free_pages().\n\n\u003ci.e\u003e\n\n- When System is under low memory load,\n memory reclaim may not occur.\n\n$ free\n total used free shared buffers cached\nMem: 8197800 1577300 6620500 0 4808 1516724\n-/+ buffers/cache: 55768 8142032\nSwap: 16386292 0 16386292\n\n$ vmstat 1\nprocs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----\n r b swpd free buff cache si so bi bo in cs us sy id wa\n 0 0 0 5069748 10612 3014060 0 0 0 0 3 26 0 0 100 0\n 0 0 0 5069748 10612 3014060 0 0 0 0 4 22 0 0 100 0\n 0 0 0 5069748 10612 3014060 0 0 0 0 3 18 0 0 100 0\n\nMeasure the time of tar command.\n\n$ ls -s test.dat\n1501472 test.dat\n\n$ time tar cvf test.tar test.dat\nreal 0m13.388s\nuser 0m0.116s\nsys 0m5.304s\n\n$ ./delayget -d -p \u003cpid\u003e\nCPU count real total virtual total delay total\n 428 5528345500 5477116080 62749891\nIO count delay total\n 338 8078977189\nSWAP count delay total\n 0 0\nRECLAIM count delay total\n 0 0\n\n- When system is under heavy memory load\n memory reclaim may occur.\n\n$ vmstat 1\nprocs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----\n r b swpd free buff cache si so bi bo in cs us sy id wa\n 0 0 7159032 49724 1812 3012 0 0 0 0 3 24 0 0 100 0\n 0 0 7159032 49724 1812 3012 0 0 0 0 4 24 0 0 100 0\n 0 0 7159032 49848 1812 3012 0 0 0 0 3 22 0 0 100 0\n\nIn this case, one process uses more 8G memory\nby execution of malloc() and memset().\n\n$ time tar cvf test.tar test.dat\nreal 1m38.563s \u003c- increased by 85 sec\nuser 0m0.140s\nsys 0m7.060s\n\n$ ./delayget -d -p \u003cpid\u003e\nCPU count real total virtual total delay total\n 9021 7140446250 7315277975 923201824\nIO count delay total\n 8965 90466349669\nSWAP count delay total\n 3 21036367\nRECLAIM count delay total\n 740 61011951153\n\nIn the later case, the value of RECLAIM is increasing.\nSo, taskstats can show how much memory reclaim influences TAT.\n\nSigned-off-by: Keika Kobayashi \u003ckobayashi.kk@ncos.nec.co.jp\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujistu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3e85ba034deec351f02cb55ff225bbd616463841", "tree": "104931bdb095bd9f7cb987e50800a036b0c2dcb4", "parents": [ "297c5d92634c809cef23d73e7b2556f2528ff7e2" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Jul 25 01:48:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "tsacct: fix bacct_add_tsk()\u0027s use of do_div()\n\nFix bacct_add_tsk()\u0027s use of do_div() on an s64 by making ac_etime a u64\ninstead and dividing that.\n\nPossibly this should be guarded lest the interval calculation turn up\nnegative, but the possible negativity of the result of the division is\ncast away, and it shouldn\u0027t end up negative anyway.\n\nThis was introduced by patch f3cef7a99469afc159fec3a61b42dc7ca5b6824f.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Jay Lan \u003cjlan@engr.sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "297c5d92634c809cef23d73e7b2556f2528ff7e2", "tree": "d006fa29daa24242c64cff3b66dd75fbb0003b0f", "parents": [ "0c18d7a5df82524e634637c3aec24d4cba096442" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Fri Jul 25 01:48:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "task IO accounting: provide distinct tgid/tid I/O statistics\n\nReport per-thread I/O statistics in /proc/pid/task/tid/io and aggregate\nparent I/O statistics in /proc/pid/io. This approach follows the same\nmodel used to account per-process and per-thread CPU times.\n\nAs a practial application, this allows for example to quickly find the top\nI/O consumer when a process spawns many child threads that perform the\nactual I/O work, because the aggregated I/O statistics can always be found\nin /proc/pid/io.\n\n[ Oleg Nesterov points out that we should check that the task is still\n alive before we iterate over the threads, but also says that we can do\n that fixup on top of this later. - Linus ]\n\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nCc: Matt Heaton \u003cmatt@hostmonster.com\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nAcked-by-with-comments: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0c18d7a5df82524e634637c3aec24d4cba096442", "tree": "9b49f775403c77b8fe4d59f4d7c84d43e26e3f5b", "parents": [ "7d1e13505be8c2bd2207894f4e0f069e1f9b51c9" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: fix and add comments around acct_process()\n\nFix the one describing what this function is and add one more - about\nlocking absence around pid namespaces loop.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7d1e13505be8c2bd2207894f4e0f069e1f9b51c9", "tree": "d8471439c564bb15532c9dac041d0787faee2c90", "parents": [ "b5a7174875ea570cc675f2c503e800db8efdd6a7" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: account dying tasks in all relevant namespaces\n\nThis just makes the acct_proces walk the pid namespaces from current up to\nthe top and account a task in each with the accounting turned on.\n\nns-\u003eparent access if safe lockless, since current it still alive and holds\nits namespace, which in turn holds its parent.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b5a7174875ea570cc675f2c503e800db8efdd6a7", "tree": "19bddd97fa7bfc762a6f2bf3fa88d3df45ba52aa", "parents": [ "0b6b030fc30d169bb406b34b4fc60d99dde4a9c6" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: turn acct off for all pidns-s on umount time\n\nAll the bsd_acct_strcts with opened accounting are linked into a global\nlist. So, the acct_auto_close(_mnt) walks one and drops the accounting\nfor each.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b6b030fc30d169bb406b34b4fc60d99dde4a9c6", "tree": "2bf5160ccfe22107937ddc03a1acd4fc9b1ccaf2", "parents": [ "6248b1b342005a428b1247b4e89249da1528d88d" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: switch from global bsd_acct_struct instance to per-pidns one\n\nAllocate the structure on the first call to sys_acct(). After this each\nnamespace, that ordered the accounting, will live with this structure till\nits own death.\n\nTwo notes\n- routines, that close the accounting on fs umount time use\n the init_pid_ns\u0027s acct by now;\n- accounting routine accounts to dying task\u0027s namespace\n (also by now).\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6248b1b342005a428b1247b4e89249da1528d88d", "tree": "307885e0e15dc646e2f63ab1e148ab13ed260e0f", "parents": [ "a75d97976517dcda69150fd81d6be86ae63324a1" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: make internal code work with passed bsd_acct_struct, not global\n\nThis adds the appropriate pointer to all the internal (i.e. static)\nfunctions that work with global acct instance. API calls pass a global\ninstance to them (while we still have such).\n\nMostly this is a s/acct_globals./acct-\u003e/ over the file.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a75d97976517dcda69150fd81d6be86ae63324a1", "tree": "57639d58edc123dd77413d929e2759cdd9159c23", "parents": [ "e59a04a7aa5ce2483470aee4f2eb79ba6b9afe8b" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:45 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "bsdacct: turn the acct_lock from on-the-struct to global\n\nDon\u0027t use per-bsd-acct-struct lock, but work with a global one.\n\nThis lock is taken for short periods, so it doesn\u0027t seem it\u0027ll become a\nbottleneck, but it will allow us to easily avoid many locking difficulties\nin the future.\n\nSo this is a mostly s/acct_globals.lock/acct_lock/ over the file.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e59a04a7aa5ce2483470aee4f2eb79ba6b9afe8b", "tree": "0cd0b592198740572b3b75c23a91d17a7f8d730b", "parents": [ "1c552858ac2b1732a99d234d46b98098baef41ff" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "bsdacct: make check timer accept a bsd_acct_struct argument\n\nWe\u0027re going to have many bsd_acct_struct instances, not just one, so the\ntimer (currently working with a global one) has to know which one to work\nwith.\n\nUse a handy setup_timer macro for it (thanks to Oleg for one).\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1c552858ac2b1732a99d234d46b98098baef41ff", "tree": "cfbd66b72a9fced68b1b937ef353a1dcf9b0b1f0", "parents": [ "20fad13ac66ac001c19220d3d08b4de5b6cca6e1" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "bsdacct: \"truthify\" a comment near acct_process\n\nThe acct_process does not accept any arguments actually.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "84406c153a5bfa5d8b428a0933e9d39db6b59a75", "tree": "5f39add26e885b810118fbf1740a61f1aac88a4d", "parents": [ "081e4c8a75692c21f3a119a81ca3270081879d0e" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "pidns: use kzalloc when allocating new pid_namespace struct\n\nIt makes many fields initialization implicit helping in auto-setting\n#ifdef-ed fields (bsd-acct related pointer will be such).\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "081e4c8a75692c21f3a119a81ca3270081879d0e", "tree": "ded825beb43c21c28e3ff4fdf0e4efe6a2b0ca66", "parents": [ "49b5cf34727a6c1be1568ab28e89a2d9a6bf51e0" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "bsdacct: rename acct_gbls to bsd_acct_struct\n\nAfter I fixed access to task-\u003etgid in kernel/acct.c, Oleg pointed out some\nbad side effects with this accounting vs pid namespaces interaction. I.e.\n when some task in pid namespace sets this accounting up, this blocks all\nthe others from doing the same. Restricting this to init namespace only\ncould help, but didn\u0027t look a graceful solution.\n\nSo here is the approach to make this accounting work with pid namespaces\nproperly.\n\nThe idea is simple - when a task dies it accounts itself in each namespace\nit is visible from and which set the accounting up.\n\nFor example here are the commands run and the output of lastcomm from init\nand sub namespaces:\n\ninit_ns# accton pacct\n sub_ns# accton pacct (this is a different file - sub ns is run in\n a chroot-ed environment)\ninit_ns# cat /dev/null\n sub_ns# ls /dev/null\ninit_ns# accton\n sub_ns# accton\n\n sub_ns# lastcomm -f pacct\nls 0 [136,0] 0.00 secs Thu May 15 10:30\naccton 0 [136,0] 0.00 secs Thu May 15 10:30\n\ninit_ns# lastcomm -f pacct\naccton root pts/0 0.00 secs Thu May 15 14:30 \u003c\u003c got from sub\ncat root pts/1 0.00 secs Thu May 15 14:30\nls root pts/0 0.00 secs Thu May 15 14:30 \u003c\u003c got from sub\naccton root pts/1 0.00 secs Thu May 15 14:30\n\nThat was the summary, the details are in patches.\n\nThis patch:\n\nIt will be visible in pid_namespace.h file, so fix its name to look better\noutside the acct.c file.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "49b5cf34727a6c1be1568ab28e89a2d9a6bf51e0", "tree": "29505ad668bfadc67a670ad4ebc5c65823a87413", "parents": [ "7394f0f6c0baab650ea9194cb1be847df646fb57" ], "author": { "name": "Jonathan Lim", "email": "jlim@sgi.com", "time": "Fri Jul 25 01:48:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:46 2008 -0700" }, "message": "accounting: account for user time when updating memory integrals\n\nAdapt acct_update_integrals() to include user time when calculating the time\ndifference. The units of acct_rss_mem1 and acct_vm_mem1 are also changed from\npages-jiffies to pages-usecs to avoid calling jiffies_to_usecs() in\nxacct_add_tsk() which might overflow.\n\nSigned-off-by: Jonathan Lim \u003cjlim@sgi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7394f0f6c0baab650ea9194cb1be847df646fb57", "tree": "dac44a6ddeac45d0ac604053b798291e68d2a70a", "parents": [ "a89cc1959d0ea5f36bf7421dc97b34f03809637d" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:48:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "unexport uts_sem\n\nWith the removal of the Solaris binary emulation the export of\nuts_sem became unused.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a89cc1959d0ea5f36bf7421dc97b34f03809637d", "tree": "3532653b4246c9771fb7bcbfcc1dd979de12415e", "parents": [ "28325df0d9339b7f3aba9c45174d4586223ef46b" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Fri Jul 25 01:48:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "markers: fix sparse integer as NULL pointer warning\n\nkernel/trace/trace_sysprof.c:164:20: warning: Using plain integer as NULL pointer\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "28325df0d9339b7f3aba9c45174d4586223ef46b", "tree": "ca5fcbc3b2bd63ee94b2ce2fe80752ea2d9c884f", "parents": [ "24879a8e3e68f146d4d85528cc0b5dea712b77c5" ], "author": { "name": "Mathieu Desnoyers", "email": "mathieu.desnoyers@polymtl.ca", "time": "Fri Jul 25 01:48:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "markers: use rcu_barrier_sched() and call_rcu_sched()\n\nrcu_barrier_sched() and call_rcu_sched() were introduced in 2.6.26 for the\nMarkers. Change the marker code to use them.\n\nIt can be seen as a fix since the marker code was using an ugly,\ntemporary, #ifdef hack to work around CONFIG_PREEMPT_RCU.\n\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nAcked-by: Paul McKenney \u003cpaulmck@us.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e49859e71e0318b564de1546bdc30fab738f9deb", "tree": "74f63bbfad6ca9682404e85c3d69482663273004", "parents": [ "19b0cfcca41dd772065671ad0584e1cea0f3fd13" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "pidns: remove now unused find_pid function.\n\nThis one had the only users so far - the kill_proc, which is removed, so\ndrop this (invalid in namespaced world) call too.\n\nAnd of course - erase all references on it from comments.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "19b0cfcca41dd772065671ad0584e1cea0f3fd13", "tree": "6a8a627e2e2f3f26b02fc4228517c421e66a8043", "parents": [ "33166b1ffca5e1945246bcaa77d72a22b0d3e531" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:48:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "pidns: remove now unused kill_proc function\n\nThis function operated on a pid_t to kill a task, which is no longer valid\nin a containerized system.\n\nIt has finally lost all its users and we can safely remove it from the\ntree.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "99541c23cd32bacf1a591ca537a7c0cb9053ad7e", "tree": "c7156bfa677ddcf6a376ca7d9eaa8d924d7824db", "parents": [ "339caf2a224fc9af0f01686bf287dda32c6efca6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@parallels.com", "time": "Fri Jul 25 01:48:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "sysctl: check for bogus modes\n\nCatch, e. g., 644/0644 typo.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@parallels.com\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "339caf2a224fc9af0f01686bf287dda32c6efca6", "tree": "c7d016474620b40913b89c610d733a36ac81a647", "parents": [ "6eedf8d30d2b48e86fbcee1a32fb2fa5f42219ee" ], "author": { "name": "David Sterba", "email": "dsterba@suse.cz", "time": "Fri Jul 25 01:48:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:45 2008 -0700" }, "message": "proc: misplaced export of find_get_pid\n\nMove EXPORT_SYMBOL right after the func\n\nSigned-off-by: David Sterba \u003cdsterba@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8448502cfc915f70e3f8923849ade27d472044cb", "tree": "964522eb36ea5424ece910092da5dce773c1f6cc", "parents": [ "8de6d308bab4f67fcf953562f9f08f9527cad72d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:41 2008 -0700" }, "message": "workqueues: do CPU_UP_CANCELED if CPU_UP_PREPARE fails\n\nThe bug was pointed out by Akinobu Mita \u003cakinobu.mita@gmail.com\u003e, and this\npatch is based on his original patch.\n\nworkqueue_cpu_callback(CPU_UP_PREPARE) expects that if it returns\nNOTIFY_BAD, _cpu_up() will send CPU_UP_CANCELED then.\n\nHowever, this is not true since\n\n\t\"cpu hotplug: cpu: deliver CPU_UP_CANCELED only to NOTIFY_OKed callbacks with CPU_UP_PREPARE\"\n\tcommit: a0d8cdb652d35af9319a9e0fb7134de2a276c636\n\nThe callback which has returned NOTIFY_BAD will not receive\nCPU_UP_CANCELED. Change the code to fulfil the CPU_UP_CANCELED logic if\nCPU_UP_PREPARE fails.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReported-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8de6d308bab4f67fcf953562f9f08f9527cad72d", "tree": "d896d82088d50a6c9d56300225605c5658f44549", "parents": [ "ef1ca236b8d645349ed6569598ae3f6c1b9511c0" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: schedule_on_each_cpu() can use schedule_work_on()\n\nschedule_on_each_cpu() can use schedule_work_on() to avoid the code\nduplication.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef1ca236b8d645349ed6569598ae3f6c1b9511c0", "tree": "a193741b4aca43c90fcf2bf8be0d999d27b99eba", "parents": [ "a67da70dc0955580665f5444f318b92e69a3c272" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: queue_work() can use queue_work_on()\n\nqueue_work() can use queue_work_on() to avoid the code duplication.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a67da70dc0955580665f5444f318b92e69a3c272", "tree": "204164627e0fb6495516b24cca005845f492f600", "parents": [ "69b895fd13d73aebf62b75502eb6513d43057ba3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: lockdep annotations for flush_work()\n\nAdd lockdep annotations to flush_work() and update the comment.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jarek Poplawski \u003cjarkao2@o2.pl\u003e\nAcked-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3da1c84c00c7e5fa8348336bd8c342f9128b0f14", "tree": "af960c65a670319fa86846a493a6d97f9fb37cd9", "parents": [ "8616a89ab761239c963eea3a63be383f127cc7e8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: make get_online_cpus() useable for work-\u003efunc()\n\nworkqueue_cpu_callback(CPU_DEAD) flushes cwq-\u003ethread under\ncpu_maps_update_begin(). This means that the multithreaded workqueues\ncan\u0027t use get_online_cpus() due to the possible deadlock, very bad and\nvery old problem.\n\nIntroduce the new state, CPU_POST_DEAD, which is called after\ncpu_hotplug_done() but before cpu_maps_update_done().\n\nChange workqueue_cpu_callback() to use CPU_POST_DEAD instead of CPU_DEAD.\nThis means that create/destroy functions can\u0027t rely on get_online_cpus()\nany longer and should take cpu_add_remove_lock instead.\n\n[akpm@linux-foundation.org: fix CONFIG_SMP\u003dn]\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8616a89ab761239c963eea3a63be383f127cc7e8", "tree": "b74212be00198b64d0c3fcbf552e0e3ced01a350", "parents": [ "db700897224b5ebdf852f2d38920ce428940d059" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: schedule_on_each_cpu: use flush_work()\n\nChange schedule_on_each_cpu() to use flush_work() instead of\nflush_workqueue(), this way we don\u0027t wait for other work_struct\u0027s which\ncan be queued meanwhile.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db700897224b5ebdf852f2d38920ce428940d059", "tree": "98f0052929e79b35393352addde70fa5e97b8dee", "parents": [ "1a4d9b0aa0d3c50314e57525a5e5ec2cfc48b4c8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: implement flush_work()\n\nMost of users of flush_workqueue() can be changed to use cancel_work_sync(),\nbut sometimes we really need to wait for the completion and cancelling is not\nan option. schedule_on_each_cpu() is good example.\n\nAdd the new helper, flush_work(work), which waits for the completion of the\nspecific work_struct. More precisely, it \"flushes\" the result of of the last\nqueue_work() which is visible to the caller.\n\nFor example, this code\n\n\tqueue_work(wq, work);\n\t/* WINDOW */\n\tqueue_work(wq, work);\n\n\tflush_work(work);\n\ndoesn\u0027t necessary work \"as expected\". What can happen in the WINDOW above is\n\n\t- wq starts the execution of work-\u003efunc()\n\n\t- the caller migrates to another CPU\n\nnow, after the 2nd queue_work() this work is active on the previous CPU, and\nat the same time it is queued on another. In this case flush_work(work) may\nreturn before the first work-\u003efunc() completes.\n\nIt is trivial to add another helper\n\n\tint flush_work_sync(struct work_struct *work)\n\t{\n\t\treturn flush_work(work) || wait_on_work(work);\n\t}\n\nwhich works \"more correctly\", but it has to iterate over all CPUs and thus\nit much slower than flush_work().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nAcked-by: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1a4d9b0aa0d3c50314e57525a5e5ec2cfc48b4c8", "tree": "2ea94cce9fe2cfbcfdc2fd25d33e57f31e0b2699", "parents": [ "565b9b14e7f48131bca58840aa404bbef058fa89" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: insert_work: use \"list_head *\" instead of \"int tail\"\n\ninsert_work() inserts the new work_struct before or after cwq-\u003eworklist,\ndepending on the \"int tail\" parameter. Change it to accept \"list_head *\"\ninstead, this shrinks .text a bit and allows us to insert the barrier\nafter specific work_struct.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a94e2d408eaedbd85aae259621d46fafc10479a2", "tree": "d853f7b2e183875c6ad90fb6ab38e084b037d043", "parents": [ "182c515fd2a942623aed4e4e0e0b37fe96571b05" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "coredump: kill mm-\u003ecore_done\n\nNow that we have core_state-\u003edumper list we can use it to wake up the\nsub-threads waiting for the coredump completion.\n\nThis uglifies the code and .text grows by 47 bytes, but otoh mm_struct\nlessens by sizeof(struct completion). Also, with this change we can\ndecouple exit_mm() from the coredumping code.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b564daf806d492dd4f7afe9b6c83b8d35d137669", "tree": "fbd6d186035b9a0a270fca97887da5d6b106a60c", "parents": [ "9d5b327bf198d2720666de958dcc2ae219d86952" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "coredump: construct the list of coredumping threads at startup time\n\nbinfmt-\u003ecore_dump() has to iterate over the all threads in system in order\nto find the coredumping threads and construct the list using the\nGFP_ATOMIC allocations.\n\nWith this patch each thread allocates the list node on exit_mm()\u0027s stack and\nadds itself to the list.\n\nThis allows us to do further changes:\n\n\t- simplify -\u003ecore_dump()\n\n\t- change exit_mm() to clear -\u003emm first, then wait for -\u003ecore_done.\n\t this makes the coredumping process visible to oom_kill\n\n\t- kill mm-\u003ecore_done\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c5f1cc8c1828486a61ab3e575da6e2c62b34d399", "tree": "9cc88e7d1dae063482e1e9117ded747578cbd7ad", "parents": [ "8cd9c249128a59e8e833d454a784b0cbd338d468" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: turn core_state-\u003enr_threads into atomic_t\n\nTurn core_state-\u003enr_threads into atomic_t and kill now unneeded\ndown_write(\u0026mm-\u003emmap_sem) in exit_mm().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "999d9fc1670bc082928b93b11d1f2e0e417d973c", "tree": "e540e7fd2fab970ba2be5e39ac9f8282a373bc24", "parents": [ "32ecb1f26dd50eeaac4e3f4dea4541c97848e459" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: move mm-\u003ecore_waiters into struct core_state\n\nMove mm-\u003ecore_waiters into \"struct core_state\" allocated on stack. This\nshrinks mm_struct a little bit and allows further changes.\n\nThis patch mostly does s/core_waiters/core_state. The only essential\nchange is that coredump_wait() must clear mm-\u003ecore_state before return.\n\nThe coredump_wait()\u0027s path is uglified and .text grows by 30 bytes, this\nis fixed by the next patch.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "32ecb1f26dd50eeaac4e3f4dea4541c97848e459", "tree": "4c2f3b6af9ff6babf2f395432de8e870508f2ec3", "parents": [ "24d5288f06ed8b3a368eba967d587cdb012dfdf7" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: turn mm-\u003ecore_startup_done into the pointer to struct core_state\n\nmm-\u003ecore_startup_done points to \"struct completion startup_done\" allocated\non the coredump_wait()\u0027s stack. Introduce the new structure, core_state,\nwhich holds this \"struct completion\". This way we can add more info\nvisible to the threads participating in coredump without enlarging\nmm_struct.\n\nNo changes in affected .o files.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "246bb0b1deb29726990620d8b5e55ca29f331362", "tree": "5173b9e0c1d18934a8b2693c690a7162acb1bca8", "parents": [ "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kill PF_BORROWED_MM in favour of PF_KTHREAD\n\nKill PF_BORROWED_MM. Change use_mm/unuse_mm to not play with -\u003eflags, and\ndo s/PF_BORROWED_MM/PF_KTHREAD/ for a couple of other users.\n\nNo functional changes yet. But this allows us to do further\nfixes/cleanups.\n\noom_kill/ptrace/etc often check \"p-\u003emm !\u003d NULL\" to filter out the\nkthreads, this is wrong because of use_mm(). The problem with\nPF_BORROWED_MM is that we need task_lock() to avoid races. With this\npatch we can check PF_KTHREAD directly, or use a simple lockless helper:\n\n\t/* The result must not be dereferenced !!! */\n\tstruct mm_struct *__get_task_mm(struct task_struct *tsk)\n\t{\n\t\tif (tsk-\u003eflags \u0026 PF_KTHREAD)\n\t\t\treturn NULL;\n\t\treturn tsk-\u003emm;\n\t}\n\nNote also ecard_task(). It runs with -\u003emm !\u003d NULL, but it\u0027s the kernel\nthread without PF_BORROWED_MM.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf", "tree": "6822edd5c63db79e97b8c5379a18a058bc5405ff", "parents": [ "3d749b9e676b26584a47e75c235aa6f69d0697ae" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "introduce PF_KTHREAD flag\n\nIntroduce the new PF_KTHREAD flag to mark the kernel threads. It is set\nby INIT_TASK() and copied to the forked childs (we could set it in\nkthreadd() along with PF_NOFREEZE instead).\n\ndaemonize() was changed as well. In that case testing of PF_KTHREAD is\nracy, but daemonize() is hopeless anyway.\n\nThis flag is cleared in do_execve(), before search_binary_handler().\nProbably not the best place, we can do this in exec_mmap() or in\nstart_thread(), or clear it along with PF_FORKNOEXEC. But I think this\ndoesn\u0027t matter in practice, and if do_execve() fails kthread should die\nsoon.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3d749b9e676b26584a47e75c235aa6f69d0697ae", "tree": "2db2dab84cde07c4872ac5e8d4078f2a3fc4271d", "parents": [ "364d3c13c17f45da6d638011078d4c4d3070d719" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "ptrace: simplify ptrace_stop()-\u003esigkill_pending() path\n\n1. SIGKILL can\u0027t be blocked, remove this check from sigkill_pending().\n\n2. When ptrace_stop() sees sigkill_pending() \u003d\u003d T, it can just return.\n Kill \"int killed\" and simplify the code. This also is more correct,\n the tracer shouldn\u0027t see us in TASK_TRACED if we are not going to\n stop.\n\nI strongly believe this code needs further changes. We should do the \"was\nthis task killed\" check unconditionally, currently it depends on\narch_ptrace_stop_needed(). On the other hand, sigkill_pending() isn\u0027t\nvery clever. If the task was killed tkill(SIGKILL), the signal can be\nalready dequeued if the caller is do_exit().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bc64efd220dcd4449aef8dd2564d73127b583b09", "tree": "21739809b2ab9b13677cae99f175c3983114abc6", "parents": [ "d8878ba3f05ae5bbfad5a6e72e5121c0ea35f989" ], "author": { "name": "Gustavo Fernando Padovan", "email": "gustavo@las.ic.unicamp.br", "time": "Fri Jul 25 01:47:33 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kernel/signal.c: change vars pid and tgid types to pid_t\n\nChange the type of pid and tgid variables from int to the POSIX type\npid_t.\n\nSigned-off-by: Gustavo F. Padovan \u003cgustavo@las.ic.unicamp.br\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d8878ba3f05ae5bbfad5a6e72e5121c0ea35f989", "tree": "31fbf7bd9605c103d8ef9e538beb54da8df04540", "parents": [ "e4901f92a8dbe843e76651a50f7a2a6dd3d53474" ], "author": { "name": "Michael Kerrisk", "email": "mtk.manpages@googlemail.com", "time": "Fri Jul 25 01:47:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "signals: make siginfo_t si_utime + si_sstime report times in USER_HZ, not HZ\n\nIn the switch to configurable HZ in 2.6, the treatment of the si_utime and\nsi_stime fields that are exposed to userland via the siginfo structure\nlooks to have been botched. As things stand, these fields report times in\nunits of HZ, so that userland gets information that varies depending on\nthe HZ that the kernel was configured with. This patch changes the\nreported values to use USER_HZ units.\n\nSigned-off-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2b201a9eddf509e8e935b45e573648e36f4b623f", "tree": "84cbb34667bcde5566e5c3d127c9089bb9792dab", "parents": [ "92413d771e7123304fb4b9efd2a00cccc946e383" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: do_signal_stop: kill the SIGNAL_UNKILLABLE check\n\nfae5fa44f1fd079ffbed8e0add929dd7bbd1347f changed do_signal_stop() to check\nSIGNAL_UNKILLABLE, this wasn\u0027t needed. If signal_group_exit() \u003d\u003d F, the\nsignal sent to SIGNAL_UNKILLABLE task must be already filtered out by the\ncaller, get_signal_to_deliver(). And if signal_group_exit() \u003d\u003d T we are\nnot going to stop.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "92413d771e7123304fb4b9efd2a00cccc946e383", "tree": "c973360a9bec6c965b9f4b41923357feec14aa3a", "parents": [ "3854a771821c970065e3203a0b40ddc4101538cc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:30 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: dequeue_signal: don\u0027t check SIGNAL_GROUP_EXIT when setting SIGNAL_STOP_DEQUEUED\n\ndequeue_signal() checks SIGNAL_GROUP_EXIT before setting\nSIGNAL_STOP_DEQUEUED. This was added by\n788e05a67c343fa22f2ae1d3ca264e7f15c25eaf a long ago to avoid the\ncoredump/SIGSTOP race.\n\nSince then the related code was changed, and now this subtle check is both\nincomplete and unneeded at the same time. It is incomplete because\nnowadays exec() doesn\u0027t set SIGNAL_GROUP_EXIT, so in fact we should check\nsignal_group_exit() to avoid a similar race. Fortunately, we doesn\u0027t need\nthe check at all. The only function which relies on SIGNAL_STOP_DEQUEUED\nis do_signal_stop(), and it ignores this flag if signal_group_exit() \u003d\u003d T,\nthis covers the SIGNAL_GROUP_EXIT case.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3854a771821c970065e3203a0b40ddc4101538cc", "tree": "b6f56b8d426c4a9682dfc8605a08a5c60f96a599", "parents": [ "100360f03077663b7bef3af44805b6cf700c3bee" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "__exit_signal: don\u0027t take rcu lock\n\nThere is no reason for rcu_read_lock() in __exit_signal(). tsk-\u003esighand\ncan only be changed if tsk does exec, obviously this is not possible.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "100360f03077663b7bef3af44805b6cf700c3bee", "tree": "338cedfd71101fdaeb317fc0692d1bf93bd3a1a7", "parents": [ "d4434207616980885205c605697868c0f07e4378" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: change collect_signal() to return void\n\nWith the recent changes collect_signal() always returns true. Change it\nto return void and update the single caller.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d4434207616980885205c605697868c0f07e4378", "tree": "82415d69b92557e09d57f42c49aba05ef4775a89", "parents": [ "6715ca451cfff1c9ce4b33ad9918a1dacf43997c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:28 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: collect_signal: simplify the \"still_pending\" logic\n\nFactor out sigdelset() calls and remove the \"still_pending\" variable.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6715ca451cfff1c9ce4b33ad9918a1dacf43997c", "tree": "a66cdfd7026e7ad40ad0675a35ff35886216ed5f", "parents": [ "96347e7759e2e433c427defa0fa1adfc8cce6226" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: collect_signal: remove the unneeded sigismember() check\n\ncollect_signal() checks sigismember(\u0026list-\u003esignal, sig), this is not\nneeded. This \"sig\" was just found by next_signal(), so it must be valid.\n\nWe have a (completely broken) call to -\u003enotifier in between, but it must\nnot play with sigpending-\u003esignal bits or unlock -\u003esiglock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "96347e7759e2e433c427defa0fa1adfc8cce6226", "tree": "0b78316c887be06b269288d7306d6cac038fe644", "parents": [ "4b7a1304267bff68260ae861784b27130e805be3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "posix timers: release_posix_timer: kill the bogus put_task_struct(-\u003eit_process);\n\nrelease_posix_timer() can\u0027t be called with -\u003eit_process !\u003d NULL. Once\nsys_timer_create() sets -\u003eit_process it must not call\nrelease_posix_timer(), otherwise we can race with another thread doing\nsys_timer_delete(), this timer is visible to idr_find() and unlocked.\n\nThe same is true for two other callers (actually, for any possible\ncaller), sys_timer_delete() and itimer_delete(). They must clear\n-\u003eit_process before unlock_timer() + release_posix_timer().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4b7a1304267bff68260ae861784b27130e805be3", "tree": "65065cc702a9d73fba4a85d0bdab5ed326a5b479", "parents": [ "da5ef6bb96158b0fc0d808704237a453af449124" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "posix timers: timer_delete: remove the bogus \"-\u003eit_process !\u003d NULL\" check\n\nsys_timer_delete() and itimer_delete() check \"timer-\u003eit_process !\u003d NULL\",\nthis looks completely bogus. -\u003eit_process \u003d\u003d NULL means that this timer\nis already under destruction or it is not fully initialized, this must not\nhappen.\n\n\tsys_timer_delete: the timer is locked, and lock_timer() can\u0027t succeed\n\tif -\u003eit_process \u003d\u003d NULL.\n\n\titimer_delete: it is called by exit_itimers() when there are no other\n\tthreads which can play with signal_struct-\u003eposix_timers.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "da5ef6bb96158b0fc0d808704237a453af449124", "tree": "a63113cc3f60c2a6916697bbb06d3c677fa7c121", "parents": [ "02412483777651a26b19a75e49c2a451a174ca9c" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: two minor code-cleanups\n\nIn cpuset_update_task_memory_state() local variable struct task_struct\n*tsk \u003d current;\n\nAnd local variable tsk is used 14 times and statement task_cs(tsk) is used\ntwice in this function. So using task_cs(tsk) instead of task_cs(current)\nis better for readability.\n\nAnd \"(struct cgroup_scanner *)\u0026scan\" is not good for readability also.\n(and \"container_of\" is used in cpuset_do_move_task(), not\n\"(cpuset_hotplug_scanner *)scan\")\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "02412483777651a26b19a75e49c2a451a174ca9c", "tree": "2289c80253b5e6be9b3fe3635e919bbe7a3bd03d", "parents": [ "489a5393a20dcbf91104052120eb2eff8791b61b" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: code-cleanup for started_after\n\ncgroup(cgroup_scan_tasks) will initialize heap-\u003egt for us. This patch\nremoves started_after() and its helper-function.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "489a5393a20dcbf91104052120eb2eff8791b61b", "tree": "63ed72ce1a7a5e4c5d361e8d1c7a876183d8bbf9", "parents": [ "c372e817afc629fea9ff6321313325ed0b4a855b" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: don\u0027t pass empty cpumasks to partition_sched_domains()\n\nI create lots of empty cpusets(empty cpumasks) and turn off the\n\"sched_load_balance\" in top cpuset.\n\nI found that all these empty cpumasks are passed to\npartition_sched_domains() in rebuild_sched_domains(), it\u0027s very\ntime-consuming for partition_sched_domains() and it\u0027s not need.\n\nIt also reduce memory consumed and some works in rebuild_sched_domains()\ntoo.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c372e817afc629fea9ff6321313325ed0b4a855b", "tree": "931188486a41a7923e4eb9b658a272b256b3c048", "parents": [ "f9b4fb8dabf38fb456c97f01aace07cb6e7c1723" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:47:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: avoid unnecessary sched domains rebuilding\n\nWhen changing \u0027sched_relax_domain_level\u0027, don\u0027t rebuild sched domains if\n\u0027cpus\u0027 is empty or \u0027sched_load_balance\u0027 is not set.\n\nAlso make the comments of rebuild_sched_domains() more readable.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f9b4fb8dabf38fb456c97f01aace07cb6e7c1723", "tree": "07fbf909044858d6c50b4098f94c8f084df3924c", "parents": [ "0b2f630a28d53b5a2082a5275bc3334b10373508" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Fri Jul 25 01:47:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpusets: update task\u0027s cpus_allowed and mems_allowed after CPU/NODE offline/online\n\nThe bug is that a task may run on the cpu/node which is not in its\ncpuset.cpus/ cpuset.mems.\n\nIt can be reproduced by the following commands:\n-----------------------------------\n# mkdir /dev/cpuset\n# mount -t cpuset xxx /dev/cpuset\n# mkdir /dev/cpuset/0\n# echo 0-1 \u003e /dev/cpuset/0/cpus\n# echo 0 \u003e /dev/cpuset/0/mems\n# echo $$ \u003e /dev/cpuset/0/tasks\n# echo 0 \u003e /sys/devices/system/cpu/cpu1/online\n# echo 1 \u003e /sys/devices/system/cpu/cpu1/online\n-----------------------------------\n\nThere is only CPU0 in cpuset.cpus, but the task in this cpuset runs on\nboth CPU0 and CPU1.\n\nIt is because the task\u0027s cpu_allowed didn\u0027t get updated after we did CPU\noffline/online manipulation. Similar for mem_allowed.\n\nThis patch fixes this bug expect for root cpuset. Because there is a\nproblem about root cpuset, in that whether it is necessary to update all\nthe tasks in root cpuset or not after cpu/node offline/online.\n\nIf updating, some kernel threads which is bound into a specified cpu will\nbe unbound.\n\nIf not updating, there is a bug in root cpuset. This bug is also caused\nby offline/online manipulation. For example, there is a dual-cpu machine.\n we create a sub cpuset in root cpuset and assign 1 to its cpus. And then\nwe attach some tasks into this sub cpuset. After this, we offline CPU1.\nNow, the tasks in this new cpuset are moved into root cpuset automatically\nbecause there is no cpu in sub cpuset. Then we online CPU1, we find all\nthe tasks which doesn\u0027t belong to root cpuset originally just run on CPU0.\n\nMaybe we need to add a flag in the task_struct to mark which task can\u0027t be\nunbound?\n\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b2f630a28d53b5a2082a5275bc3334b10373508", "tree": "24f7aa54cedcf941b89f59c964873f3034e76b23", "parents": [ "628f42355389cfb596ca3a5a5f64fb9054a2a06a" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Fri Jul 25 01:47:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cpusets: restructure the function update_cpumask() and update_nodemask()\n\nExtract two functions from update_cpumask() and update_nodemask().They\nwill be used later for updating tasks\u0027 cpus_allowed and mems_allowed after\nCPU/NODE offline/online.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e885dcde75685e09f23cffae1f6d5169c105b8a0", "tree": "711a91e83fad632c194700839d3e47631aee677a", "parents": [ "856c13aa1ff6136c1968414fdea5938ea9d5ebf2" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Fri Jul 25 01:47:06 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cgroup_clone: use pid of newly created task for new cgroup\n\ncgroup_clone creates a new cgroup with the pid of the task. This works\ncorrectly for unshare, but for clone cgroup_clone is called from\ncopy_namespaces inside copy_process, which happens before the new pid is\ncreated. As a result, the new cgroup was created with current\u0027s pid.\nThis patch:\n\n\t1. Moves the call inside copy_process to after the new pid\n\t is created\n\t2. Passes the struct pid into ns_cgroup_clone (as it is not\n\t yet attached to the task)\n\t3. Passes a name from ns_cgroup_clone() into cgroup_clone()\n\t so as to keep cgroup_clone() itself simpler\n\t4. Uses pid_vnr() to get the process id value, so that the\n\t pid used to name the new cgroup is always the pid as it\n\t would be known to the task which did the cloning or\n\t unsharing. I think that is the most intuitive thing to\n\t do. This way, task t1 does clone(CLONE_NEWPID) to get\n\t t2, which does clone(CLONE_NEWPID) to get t3, then the\n\t cgroup for t3 will be named for the pid by which t2 knows\n\t t3.\n\n(Thanks to Dan Smith for finding the main bug)\n\nChangelog:\n\tJune 11: Incorporate Paul Menage\u0027s feedback: don\u0027t pass\n\t NULL to ns_cgroup_clone from unshare, and reduce\n\t\t patch size by using \u0027nodename\u0027 in cgroup_clone.\n\tJune 10: Original version\n\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Serge Hallyn \u003cserge@us.ibm.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nTested-by: Dan Smith \u003cdanms@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "856c13aa1ff6136c1968414fdea5938ea9d5ebf2", "tree": "deee908f253c77cbcb868a915e45bfb2ed99383c", "parents": [ "f92523e3a7861f5dbd76021e0719a35fe8771f2d" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: convert res_counter_write() to be a cgroups write_string() handler\n\nCurrently res_counter_write() is a raw file handler even though it\u0027s\nultimately taking a number, since in some cases it wants to\npre-process the string when converting it to a number.\n\nThis patch converts res_counter_write() from a raw file handler to a\nwrite_string() handler; this allows some of the boilerplate\ncopying/locking/checking to be removed, and simplies the cleanup path,\nsince these functions are now performed by the cgroups framework.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e37123953292146445c8629b3950d0513fd10ae2", "tree": "8481ef1898a61cb5438205df349e01c432a1d55b", "parents": [ "af351026aafc8da16518a02b41c66d3e0c1cdef4" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:02 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: remove cpuset_common_file_write()\n\nThis patch tweaks the signatures of the update_cpumask() and\nupdate_nodemask() functions so that they can be called directly as\nhandlers for the new cgroups write_string() method.\n\nThis allows cpuset_common_file_write() to be removed.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "af351026aafc8da16518a02b41c66d3e0c1cdef4", "tree": "f294376157f2e1c91f5a4b6ff90b4183dc6f7969", "parents": [ "6379c106152388f7ea45d6dda63edda0e9181fc8" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: turn attach_task_by_pid directly into a cgroup write handler\n\nThis patch changes attach_task_by_pid() to take a u64 rather than a\nstring; as a result it can be called directly as a control groups\nwrite_u64 handler, and cgroup_common_file_write() can be removed.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6379c106152388f7ea45d6dda63edda0e9181fc8", "tree": "ad38aad4eb0f2b4431ff15ec85c3e3aea99f7207", "parents": [ "84eea842886ac35020be6043e04748ed22014359" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: move notify_on_release file to separate write handler\n\nThis patch moves the write handler for the cgroups notify_on_release\nfile into a separate handler. This handler requires no cgroups locking\nsince it relies on atomic bitops for synchronization.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "84eea842886ac35020be6043e04748ed22014359", "tree": "acd2bb7c3bc267a032b5e637c598708f38c68cb3", "parents": [ "e788e066c651b1bbf4a927dc95395c1aa13be436" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:00 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: misc cleanups to write_string patchset\n\nThis patch contains cleanups suggested by reviewers for the recent\nwrite_string() patchset:\n\n- pair cgroup_lock_live_group() with cgroup_unlock() in cgroup.c for\n clarity, rather than directly unlocking cgroup_mutex.\n\n- make the return type of cgroup_lock_live_group() a bool\n\n- use a #define\u0027d constant for the local buffer size in read/write functions\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e788e066c651b1bbf4a927dc95395c1aa13be436", "tree": "8ffb80dc5917ba5b77e17ab2b71afcea3aadfef8", "parents": [ "db3b14978abc02041046ed8353f0899cb58ffffc" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:59 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: move the release_agent file to use typed handlers\n\nAdds cgroup_release_agent_write() and cgroup_release_agent_show()\nmethods to handle writing/reading the path to a cgroup hierarchy\u0027s\nrelease agent. As a result, cgroup_common_file_read() is now unnecessary.\n\nAs part of the change, a previously-tolerated race in\ncgroup_release_agent() is avoided by copying the current\nrelease_agent_path prior to calling call_usermode_helper().\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db3b14978abc02041046ed8353f0899cb58ffffc", "tree": "355ba027c6354bd13bcbb5318e8478b3de4599e9", "parents": [ "ce16b49d37e748574f7fabc2726268d542d0aa1a" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: add write_string cgroup control file method\n\nThis patch adds a write_string() method for cgroups control files. The\nsemantics are that a buffer is copied from userspace to kernelspace\nand the handler function invoked on that buffer. The buffer is\nguaranteed to be nul-terminated, and no longer than max_write_len\n(defaulting to 64 bytes if unspecified). Later patches will convert\nexisting raw file write handlers in control group subsystems to use\nthis method.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8947f9d5b361ce927be6d5c11fed57905b7a4100", "tree": "f4a7d212cfef8889a60022c8ff3c9cfcf97962c2", "parents": [ "71cbb949d17d4d776abd547135feb7f3282405c8" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:56 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: annotate two variables with __read_mostly\n\n- need_forkexit_callback will be read only after system boot.\n- use_task_css_set_links will be read only after it\u0027s set.\n\nAnd these 2 variables are checked when a new process is forked.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "71cbb949d17d4d776abd547135feb7f3282405c8", "tree": "decd47a6cb05a36bb8a2f224b50bd12a8acc862e", "parents": [ "f2992db2a4f7ae10f61d5bc68c7c1528cec639e2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Fri Jul 25 01:46:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup: list_for_each cleanup\n\n--------------------------\nwhile() {\n\tlist_entry();\n\t...\n}\n--------------------------\n\nis equivalent to following code.\n\n--------------------------\nlist_for_each_entry(){\n\t...\n}\n--------------------------\n\nlater can review easily more.\n\nthis patch is just clean up.\nit doesn\u0027t have any behavor change.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7e9abd89cbdf9b73d327d8173343abce9022609b", "tree": "7e738e46ba5e384fc6bc984196ed2d09a0ea8102", "parents": [ "9d96d82da437ed5f2053821779ed5d7797ed1f81" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup: use read lock to guard find_existing_css_set()\n\nThe function does not modify anything (except the temporary css template), so\nit\u0027s sufficient to hold read lock.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8b6dd986823a8d92ed9f54baa5cef8604d9d9d44", "tree": "42aa64ad046b200c4a04491eb3c72ac2f7ffde0e", "parents": [ "ef53d9c5e4da147ecaa43c44c5e5945eb83970a2" ], "author": { "name": "Abhishek Sagar", "email": "sagar.abhishek@gmail.com", "time": "Fri Jul 25 01:46:05 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "kprobes: remove redundant config check\n\nI noticed that there\u0027s a CONFIG_KPROBES check inside kernel/kprobes.c,\nwhich is redundant.\n\nSigned-off-by: Abhishek Sagar \u003csagar.abhishek@gmail.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef53d9c5e4da147ecaa43c44c5e5945eb83970a2", "tree": "3b596445e5d0613fda4b33a4ae96e0e3fffdcf1e", "parents": [ "53a9600c634e3bfd6230e0597aca159bf4d4d010" ], "author": { "name": "Srinivasa D S", "email": "srinivasa@in.ibm.com", "time": "Fri Jul 25 01:46:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "kprobes: improve kretprobe scalability with hashed locking\n\nCurrently list of kretprobe instances are stored in kretprobe object (as\nused_instances,free_instances) and in kretprobe hash table. We have one\nglobal kretprobe lock to serialise the access to these lists. This causes\nonly one kretprobe handler to execute at a time. Hence affects system\nperformance, particularly on SMP systems and when return probe is set on\nlot of functions (like on all systemcalls).\n\nSolution proposed here gives fine-grain locks that performs better on SMP\nsystem compared to present kretprobe implementation.\n\nSolution:\n\n 1) Instead of having one global lock to protect kretprobe instances\n present in kretprobe object and kretprobe hash table. We will have\n two locks, one lock for protecting kretprobe hash table and another\n lock for kretporbe object.\n\n 2) We hold lock present in kretprobe object while we modify kretprobe\n instance in kretprobe object and we hold per-hash-list lock while\n modifying kretprobe instances present in that hash list. To prevent\n deadlock, we never grab a per-hash-list lock while holding a kretprobe\n lock.\n\n 3) We can remove used_instances from struct kretprobe, as we can\n track used instances of kretprobe instances using kretprobe hash\n table.\n\nTime duration for kernel compilation (\"make -j 8\") on a 8-way ppc64 system\nwith return probes set on all systemcalls looks like this.\n\ncacheline non-cacheline Un-patched kernel\naligned patch \t aligned patch\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nreal 9m46.784s 9m54.412s 10m2.450s\nuser 40m5.715s 40m7.142s 40m4.273s\nsys 2m57.754s 2m58.583s 3m17.430s\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nTime duration for kernel compilation (\"make -j 8) on the same system, when\nkernel is not probed.\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nreal 9m26.389s\nuser 40m8.775s\nsys 2m7.283s\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nSigned-off-by: Srinivasa DS \u003csrinivasa@in.ibm.com\u003e\nSigned-off-by: Jim Keniston \u003cjkenisto@us.ibm.com\u003e\nAcked-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "717115e1a5856b57af0f71e1df7149108294fc10", "tree": "9528a992245c2fb993a0cf0bc8221dc7dea5d259", "parents": [ "2711b793eb62a5873a0ba583a69252040aef176e" ], "author": { "name": "Dave Young", "email": "hidave.darkstar@gmail.com", "time": "Fri Jul 25 01:45:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:29 2008 -0700" }, "message": "printk ratelimiting rewrite\n\nAll ratelimit user use same jiffies and burst params, so some messages\n(callbacks) will be lost.\n\nFor example:\na call printk_ratelimit(5 * HZ, 1)\nb call printk_ratelimit(5 * HZ, 1) before the 5*HZ timeout of a, then b will\nwill be supressed.\n\n- rewrite __ratelimit, and use a ratelimit_state as parameter. Thanks for\n hints from andrew.\n\n- Add WARN_ON_RATELIMIT, update rcupreempt.h\n\n- remove __printk_ratelimit\n\n- use __ratelimit in net_ratelimit\n\nSigned-off-by: Dave Young \u003chidave.darkstar@gmail.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Dave Young \u003chidave.darkstar@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7a2c477069fbd32f91598f05334003979b987a39", "tree": "fe4ac84819050159a45752ad4c03b2abc971ad06", "parents": [ "a8f18b909c0a3f22630846207035c8b84bb252b8" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jul 25 01:45:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:29 2008 -0700" }, "message": "kernel/irq/manage.c: replace a printk + WARN_ON() to a WARN()\n\nReplace a printk+WARN_ON() by a WARN(); this increases the chance of the\nstring making it into the bugreport (ie: it goes inside the\n---[ cut here ]--- section)\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a8f18b909c0a3f22630846207035c8b84bb252b8", "tree": "72a2dee787b9d077cc24f5cf7392b071401506ec", "parents": [ "b6c63937001889af6fe431aaba97e59d04e028e7" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jul 25 01:45:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:29 2008 -0700" }, "message": "Add a WARN() macro; this is WARN_ON() + printk arguments\n\nAdd a WARN() macro that acts like WARN_ON(), with the added feature that it\ntakes a printk like argument that is printed as part of the warning message.\n\n[akpm@linux-foundation.org: fix printk arguments]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b69c49b78457f681ecfb3147bd968434ee6559c1", "tree": "9557c950c21cf4336ccc403136ea11384150af31", "parents": [ "62ec30d45ecbb85b5991474c8f04192697687495" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Fri Jul 25 01:45:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:28 2008 -0700" }, "message": "clean up duplicated alloc/free_thread_info\n\nWe duplicate alloc/free_thread_info defines on many platforms (the\nmajority uses __get_free_pages/free_pages). This patch defines common\ndefines and removes these duplicated defines.\n__HAVE_ARCH_THREAD_INFO_ALLOCATOR is introduced for platforms that do\nsomething different.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ac331d158e198d2a91a5b0a3ec4ca9991fdb57af", "tree": "b0921e2bc8e59d5df2c554c41c3b9f04e05d6d7c", "parents": [ "f557d0996a6f9c06912528ea85e1dba0fb7d485f" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Fri Jul 25 01:45:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:28 2008 -0700" }, "message": "call_usermodehelper(): increase reliability\n\nPresently call_usermodehelper_setup() uses GFP_ATOMIC. but it can return\nNULL _very_ easily.\n\nGFP_ATOMIC is needed only when we can\u0027t sleep. and, GFP_KERNEL is robust\nand better.\n\nthus, I add gfp_mask argument to call_usermodehelper_setup().\n\nSo, its callers pass the gfp_t as below:\n\ncall_usermodehelper() and call_usermodehelper_keys():\n\tdepend on \u0027wait\u0027 argument.\ncall_usermodehelper_pipe():\n\talways GFP_KERNEL because always run under process context.\norderly_poweroff():\n\tpass to GFP_ATOMIC because may run under interrupt context.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: \"Paul Menage\" \u003cmenage@google.com\u003e\nReviewed-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7", "tree": "6329fc91e860f2949d737c611aa846eb2d653103", "parents": [ "696adfe84c11c571a1e0863460ff0ec142b4e5a9" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:45:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:27 2008 -0700" }, "message": "build kernel/profile.o only when requested\n\nBuild kernel/profile.o only if CONFIG_PROFILING is enabled.\n\nThis makes CONFIG_PROFILING\u003dn kernels smaller.\n\nAs a bonus, some profile_tick() calls and one branch from schedule() are\nnow eliminated with CONFIG_PROFILING\u003dn (but I doubt these are\nmeasurable effects).\n\nThis patch changes the effects of CONFIG_PROFILING\u003dn, but I don\u0027t think\nhaving more than two choices would be the better choice.\n\nThis patch also adds the name of the first parameter to the prototypes\nof profile_{hits,tick}() since I anyway had to add them for the dummy\nfunctions.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2fc9c4e18f94431e7eb77d97edb2a995b46fba55", "tree": "4d5f003ab52c9e50774c856a5cc2e53699b0b21e", "parents": [ "58340a07c194e0aed7bc58b61ff24330bb2a409f" ], "author": { "name": "Vegard Nossum", "email": "vegard.nossum@gmail.com", "time": "Fri Jul 25 01:45:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:27 2008 -0700" }, "message": "kallsyms: fix potential overflow in binary search\n\nThis will probably never trigger... but it won\u0027t hurt to be careful.\n\nhttp://googleresearch.blogspot.com/2006/06/extra-extra-read-all-about-it-nearly.html\n\nSigned-off-by: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Joshua Bloch \u003cjjb@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5df439ef06d4173357711a04740aa8bfcf50d621", "tree": "79c3ff05b59600efb5a24c1f15070075ab16f47b", "parents": [ "c82dd5321cf779f1f536ef26b383cbe8c9de7f10" ], "author": { "name": "Wang Chen", "email": "wangchen@cn.fujitsu.com", "time": "Fri Jul 25 01:45:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:26 2008 -0700" }, "message": "flag parameters: fix compile error of sys_epoll_create1\n\nGEN .version\n CHK include/linux/compile.h\n UPD include/linux/compile.h\n CC init/version.o\n LD init/built-in.o\n LD vmlinux\narch/x86/kernel/built-in.o: In function `sys_call_table\u0027:\n(.rodata+0x8a4): undefined reference to `sys_epoll_create1\u0027\nmake: *** [vmlinux] Error 1\n\nSigned-off-by: Wang Chen \u003cwangchen@cn.fujitsu.com\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ecc8b655b38a880b578146895e0e1e2d477ca2c0", "tree": "4acce96bac00909fa9472f0c0669714243ea5bee", "parents": [ "2528ce3237be4e900f5eaa455490146e1422e424", "e338125b8a886923ba8367207c144764dc352584" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:55:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:55:01 2008 -0700" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n nohz: adjust tick_nohz_stop_sched_tick() call of s390 as well\n nohz: prevent tick stop outside of the idle loop\n" }, { "commit": "2528ce3237be4e900f5eaa455490146e1422e424", "tree": "0be844679c06c7da121527189770f9737dfcc6c2", "parents": [ "8ffa5b65968262ba6bb046329972791c0d960745", "36bd53d07243ae83c1b73bae549086cea2252854" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:54:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:54:26 2008 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n arch/mips/kernel/stacktrace.c: Heiko can\u0027t type\n kthread: reduce stack pressure in create_kthread and kthreadd\n fix core/stacktrace changes on avr32, mips, sh\n" } ], "next": "8ffa5b65968262ba6bb046329972791c0d960745" }