)]}' { "log": [ { "commit": "34441427aab4bdb3069a4ffcda69a99357abcb2e", "tree": "3beebde910f25b0945e9105017fd743c9e5241a5", "parents": [ "3c904afd7358e9ef515eb5df36b6f25c2b7fc2da" ], "author": { "name": "Robin Holt", "email": "holt@sgi.com", "time": "Tue May 11 14:06:46 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue May 11 17:33:41 2010 -0700" }, "message": "revert \"procfs: provide stack information for threads\" and its fixup commits\n\nOriginally, commit d899bf7b (\"procfs: provide stack information for\nthreads\") attempted to introduce a new feature for showing where the\nthreadstack was located and how many pages are being utilized by the\nstack.\n\nCommit c44972f1 (\"procfs: disable per-task stack usage on NOMMU\") was\napplied to fix the NO_MMU case.\n\nCommit 89240ba0 (\"x86, fs: Fix x86 procfs stack information for threads on\n64-bit\") was applied to fix a bug in ia32 executables being loaded.\n\nCommit 9ebd4eba7 (\"procfs: fix /proc/\u003cpid\u003e/stat stack pointer for kernel\nthreads\") was applied to fix a bug which had kernel threads printing a\nuserland stack address.\n\nCommit 1306d603f (\u0027proc: partially revert \"procfs: provide stack\ninformation for threads\"\u0027) was then applied to revert the stack pages\nbeing used to solve a significant performance regression.\n\nThis patch nearly undoes the effect of all these patches.\n\nThe reason for reverting these is it provides an unusable value in\nfield 28. For x86_64, a fork will result in the task-\u003estack_start\nvalue being updated to the current user top of stack and not the stack\nstart address. This unpredictability of the stack_start value makes\nit worthless. That includes the intended use of showing how much stack\nspace a thread has.\n\nOther architectures will get different values. As an example, ia64\ngets 0. The do_fork() and copy_process() functions appear to treat the\nstack_start and stack_size parameters as architecture specific.\n\nI only partially reverted c44972f1 (\"procfs: disable per-task stack usage\non NOMMU\") . If I had completely reverted it, I would have had to change\nmm/Makefile only build pagewalk.o when CONFIG_PROC_PAGE_MONITOR is\nconfigured. Since I could not test the builds without significant effort,\nI decided to not change mm/Makefile.\n\nI only partially reverted 89240ba0 (\"x86, fs: Fix x86 procfs stack\ninformation for threads on 64-bit\") . I left the KSTK_ESP() change in\nplace as that seemed worthwhile.\n\nSigned-off-by: Robin Holt \u003cholt@sgi.com\u003e\nCc: Stefani Seibold \u003cstefani@seibold.net\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Michal Simek \u003cmonstr@monstr.eu\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \u003cstable@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": "3835541dd481091c4dbf5ef83c08aed12e50fd61", "tree": "bb40567215e394392ed0167867a0bf2a5916a583", "parents": [ "9e584fbbd9fd4f0f10b8aafc9982df8d0b553e35" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Tue Apr 27 13:13:06 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 27 16:26:03 2010 -0700" }, "message": "procfs: fix tid fdinfo\n\nCorrect the file_operations struct in fdinfo entry of tid_base_stuff[].\n\nPresently /proc/*/task/*/fdinfo contains symlinks to opened files like\n/proc/*/fd/.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.com\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \u003cstable@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": "116354d177ba2da37e91cf884e3d11e67f825efd", "tree": "150227e8a5c9ce8b6dd9333593ed513c8c012686", "parents": [ "57119c34e53bbb8d244c3ff1335ef5145768538f" ], "author": { "name": "Naoya Horiguchi", "email": "n-horiguchi@ah.jp.nec.com", "time": "Tue Apr 06 14:35:04 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 07 08:38:04 2010 -0700" }, "message": "pagemap: fix pfn calculation for hugepage\n\nWhen we look into pagemap using page-types with option -p, the value of\npfn for hugepages looks wrong (see below.) This is because pte was\nevaluated only once for one vma although it should be updated for each\nhugepage. This patch fixes it.\n\n $ page-types -p 3277 -Nl -b huge\n voffset offset len flags\n 7f21e8a00 11e400 1 ___U___________H_G________________\n 7f21e8a01 11e401 1ff ________________TG________________\n ^^^\n 7f21e8c00 11e400 1 ___U___________H_G________________\n 7f21e8c01 11e401 1ff ________________TG________________\n ^^^\n\nOne hugepage contains 1 head page and 511 tail pages in x86_64 and each\ntwo lines represent each hugepage. Voffset and offset mean virtual\naddress and physical address in the page unit, respectively. The\ndifferent hugepages should not have the same offset value.\n\nWith this patch applied:\n\n $ page-types -p 3386 -Nl -b huge\n voffset offset len flags\n 7fec7a600 112c00 1 ___UD__________H_G________________\n 7fec7a601 112c01 1ff ________________TG________________\n ^^^\n 7fec7a800 113200 1 ___UD__________H_G________________\n 7fec7a801 113201 1ff ________________TG________________\n ^^^\n OK\n\nMore info:\n\n- This patch modifies walk_page_range()\u0027s hugepage walker. But the\n change only affects pagemap_read(), which is the only caller of hugepage\n callback.\n\n- Without this patch, hugetlb_entry() callback is called per vma, that\n doesn\u0027t match the natural expectation from its name.\n\n- With this patch, hugetlb_entry() is called per hugepte entry and the\n callback can become much simpler.\n\nSigned-off-by: Naoya Horiguchi \u003cn-horiguchi@ah.jp.nec.com\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "309361e09ca9e9670dc8664e5d14125bf82078af", "tree": "2886267e80efa99d5447d56305e6560fd4cce410", "parents": [ "5fbfb18d7a5b846946d52c4a10e3aaa213ec31b6" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Tue Apr 06 13:45:39 2010 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 06 08:23:47 2010 -0700" }, "message": "proc: copy_to_user() returns unsigned\n\ncopy_to_user() returns the number of bytes left to be copied.\n\nThis was a typo from: d82ef020cf31 \"proc: pagemap: Hold mmap_sem during\npage walk\".\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "336f5899d287f06d8329e208fc14ce50f7ec9698", "tree": "9b762d450d5eb248a6ff8317badb7e223d93ed58", "parents": [ "a4ab2773205e8b94c18625455f85e3b6bb9d7ad6", "db217dece3003df0841bacf9556b5c06aa097dae" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Apr 05 11:37:28 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Apr 05 11:37:28 2010 +0900" }, "message": "Merge branch \u0027master\u0027 into export-slabh\n" }, { "commit": "d82ef020cf31504c816803b1def94eb5ff173363", "tree": "1aac1f2260b602d28804a809783076d68a06bb33", "parents": [ "5e11611a5d22252f3f9c169a3c9377eac0c32033" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Apr 02 09:11:29 2010 +0900" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 04 12:06:02 2010 -0700" }, "message": "proc: pagemap: Hold mmap_sem during page walk\n\nIn initial design, walk_page_range() was designed just for walking page\ntable and it didn\u0027t require mmap_sem. Now, find_vma() etc.. are used\nin walk_page_range() and we need mmap_sem around it.\n\nThis patch adds mmap_sem around walk_page_range().\n\nBecause /proc/\u003cpid\u003e/pagemap\u0027s callback routine use put_user(), we have\nto get rid of it to do sane fix.\n\nChangelog: 2010/Apr/2\n - fixed start_vaddr and end overflow\nChangelog: 2010/Apr/1\n - fixed start_vaddr calculation\n - removed unnecessary cast.\n - removed unnecessary change in smaps.\n - use GFP_TEMPORARY instead of GFP_KERNEL\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: San Mehat \u003csan@google.com\u003e\nCc: Brian Swetland \u003cswetland@google.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n[ Fixed kmalloc failure return code as per Matt ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b95c35e76b29ba812e5dabdd91592e25ec640e93", "tree": "9584cf21e47baec986f5dc5455081e8538126be1", "parents": [ "30d1872d9eb3663b4cf7bdebcbf5cd465674cced" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Apr 01 15:13:57 2010 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 01 08:50:21 2010 -0700" }, "message": "oom: fix the unsafe usage of badness() in proc_oom_score()\n\nproc_oom_score(task) has a reference to task_struct, but that is all.\nIf this task was already released before we take tasklist_lock\n\n\t- we can\u0027t use task-\u003egroup_leader, it points to nowhere\n\n\t- it is not safe to call badness() even if this task is\n\t -\u003egroup_leader, has_intersects_mems_allowed() assumes\n\t it is safe to iterate over -\u003ethread_group list.\n\n\t- even worse, badness() can hit -\u003esignal \u003d\u003d NULL\n\nAdd the pid_alive() check to ensure __unhash_process() was not called.\n\nAlso, use \"task\" instead of task-\u003egroup_leader. badness() should return\nthe same result for any sub-thread. Currently this is not true, but\nthis should be changed anyway.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5a0e3ad6af8660be21ca98a971cd00f331318c05", "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1", "parents": [ "ed391f4ebf8f701d3566423ce8f17e614cde9806" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Mar 24 17:04:11 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Mar 30 22:02:32 2010 +0900" }, "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files. percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed. Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability. As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n only the necessary includes are there. ie. if only gfp is used,\n gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n blocks and try to put the new include such that its order conforms\n to its surrounding. It\u0027s put in the include block which contains\n core kernel includes, in the same order that the rest are ordered -\n alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n because the file doesn\u0027t have fitting include block), it prints out\n an error message indicating which .h file needs to be added to the\n file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n and ~3000 slab.h inclusions. The script emitted errors for ~400\n files.\n\n2. Each error was manually checked. Some didn\u0027t need the inclusion,\n some needed manual addition while adding it to implementation .h or\n embedding .c file was more appropriate for others. This step added\n inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n editing them as sprinkling gfp.h and slab.h inclusions around .h\n files could easily lead to inclusion dependency hell. Most gfp.h\n inclusion directives were ignored as stuff from gfp.h was usually\n wildly available and often used in preprocessor macros. Each\n slab.h inclusion directive was examined and added manually as\n necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my\n distributed build env didn\u0027t work with gcov compiles) and a few\n more options had to be turned off depending on archs to make things\n build (like ipr on powerpc/64 which failed due to missing writeq).\n\n * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n * powerpc and powerpc64 SMP allmodconfig\n * sparc and sparc64 SMP allmodconfig\n * ia64 SMP allmodconfig\n * s390 SMP allmodconfig\n * alpha SMP allmodconfig\n * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n" }, { "commit": "4fd2c20d964a8fb9861045f1022475c9d200d684", "tree": "ff062c1c775a085851a38c77a81c6907fdade35d", "parents": [ "c6b6ef8bb05af632889c5536513b9f4004961f73" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Tue Mar 23 13:35:42 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 24 16:31:22 2010 -0700" }, "message": "kcore: fix test for end of list\n\n\"m\" is never NULL here. We need a different test for the end of list\ncondition.\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "12bac0d9f4dbf3445a0319beee848d15fa32775e", "tree": "4b712e05e785c010a31d12bb4a1f662173b9fcee", "parents": [ "e17a5765f20d1219c3f05eb17aab11671978e0ec" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Mar 05 13:44:00 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 06 11:26:45 2010 -0800" }, "message": "proc: warn on non-existing proc entries\n\n* warn if creation goes on to non-existent directory\n* warn if removal goes on from non-existing directory\n* warn if non-existing proc entry is removed\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e17a5765f20d1219c3f05eb17aab11671978e0ec", "tree": "6dae8ad2358efac94587dd86104fdccc715fbfde", "parents": [ "5748150eabdacd3f870c311b63d32f5e312bf624" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Mar 05 13:43:59 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 06 11:26:45 2010 -0800" }, "message": "proc: do translation + unlink atomically at remove_proc_entry()\n\nremove_proc_entry() does\n\n\tlock\n\tlookup parent\n\tunlock\n\tlock\n\tunlink proc entry from lists\n\tunlock\n\nwhich can be made bit more correct by doing parent translation + unlink\nwithout dropping lock.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d554ed895dc8f293cc712c71f14b101ace82579a", "tree": "fd29ba33d640e156e2ca4267ffbdb9dc566fd3d6", "parents": [ "221e3ebf6d5f2625373573155924e39f196c5d3d" ], "author": { "name": "Jiri Slaby", "email": "jslaby@suse.cz", "time": "Fri Mar 05 13:42:42 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 06 11:26:29 2010 -0800" }, "message": "fs: use rlimit helpers\n\nMake sure compiler won\u0027t do weird things with limits. E.g. fetching them\ntwice may return 2 different values after writable limits are implemented.\n\nI.e. either use rlimit helpers added in commit 3e10e716abf3 (\"resource:\nadd helpers for fetching rlimits\") or ACCESS_ONCE if not applicable.\n\nSigned-off-by: Jiri Slaby \u003cjslaby@suse.cz\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b084d4353ff99d824d3bc5a5c2c22c70b1fba722", "tree": "8178db2b337fc8a36e6ca2e1fc2e7d7473957e27", "parents": [ "34e55232e59f7b19050267a05ff1226e5cd122a5" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Mar 05 13:41:42 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 06 11:26:24 2010 -0800" }, "message": "mm: count swap usage\n\nA frequent questions from users about memory management is what numbers of\nswap ents are user for processes. And this information will give some\nhints to oom-killer.\n\nBesides we can count the number of swapents per a process by scanning\n/proc/\u003cpid\u003e/smaps, this is very slow and not good for usual process\ninformation handler which works like \u0027ps\u0027 or \u0027top\u0027. (ps or top is now\nenough slow..)\n\nThis patch adds a counter of swapents to mm_counter and update is at each\nswap events. Information is exported via /proc/\u003cpid\u003e/status file as\n\n[kamezawa@bluextal memory]$ cat /proc/self/status\nName: cat\nState: R (running)\nTgid: 2910\nPid: 2910\nPPid: 2823\nTracerPid: 0\nUid: 500 500 500 500\nGid: 500 500 500 500\nFDSize: 256\nGroups: 500\nVmPeak: 82696 kB\nVmSize: 82696 kB\nVmLck: 0 kB\nVmHWM: 432 kB\nVmRSS: 432 kB\nVmData: 172 kB\nVmStk: 84 kB\nVmExe: 48 kB\nVmLib: 1568 kB\nVmPTE: 40 kB\nVmSwap: 0 kB \u003c\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d this.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.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": "d559db086ff5be9bcc259e5aa50bf3d881eaf1d1", "tree": "aa968c8a4093234e4623a34c0415bf9d8683671c", "parents": [ "19b629f581320999ddb9f6597051b79cdb53459c" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Mar 05 13:41:39 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 06 11:26:23 2010 -0800" }, "message": "mm: clean up mm_counter\n\nPresently, per-mm statistics counter is defined by macro in sched.h\n\nThis patch modifies it to\n - defined in mm.h as inlinf functions\n - use array instead of macro\u0027s name creation.\n\nThis patch is for reducing patch size in future patch to modify\nimplementation of per-mm counter.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.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": "0f2cc4ecd81dc1917a041dc93db0ada28f8356fa", "tree": "f128b50f48f50f0cda6d2b20b53e9ad6e2dfded3", "parents": [ "1fae4cfb97302289bb5df6a8195eb28385d0b002", "9643f5d94aadd47a5fa9754fb60f2c957de05903" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 04 08:15:33 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 04 08:15:33 2010 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits)\n init: Open /dev/console from rootfs\n mqueue: fix typo \"failues\" -\u003e \"failures\"\n mqueue: only set error codes if they are really necessary\n mqueue: simplify do_open() error handling\n mqueue: apply mathematics distributivity on mq_bytes calculation\n mqueue: remove unneeded info-\u003emessages initialization\n mqueue: fix mq_open() file descriptor leak on user-space processes\n fix race in d_splice_alias()\n set S_DEAD on unlink() and non-directory rename() victims\n vfs: add NOFOLLOW flag to umount(2)\n get rid of -\u003emnt_parent in tomoyo/realpath\n hppfs can use existing proc_mnt, no need for do_kern_mount() in there\n Mirror MS_KERNMOUNT in -\u003emnt_flags\n get rid of useless vfsmount_lock use in put_mnt_ns()\n Take vfsmount_lock to fs/internal.h\n get rid of insanity with namespace roots in tomoyo\n take check for new events in namespace (guts of mounts_poll()) to namespace.c\n Don\u0027t mess with generic_permission() under -\u003ed_lock in hpfs\n sanitize const/signedness for udf\n nilfs: sanitize const/signedness in dealing with -\u003ed_name.name\n ...\n\nFix up fairly trivial (famous last words...) conflicts in\ndrivers/infiniband/core/uverbs_main.c and security/tomoyo/realpath.c\n" }, { "commit": "9f5596af44514f99e3a654a4f7cb813354b9e516", "tree": "6a579bf387683b910bd32e8aa7edef9956e58dd1", "parents": [ "e21e7095a78867364d7aa9223d833ccb966f93f3" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Feb 05 00:40:25 2010 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Mar 03 14:07:59 2010 -0500" }, "message": "take check for new events in namespace (guts of mounts_poll()) to namespace.c\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "587d4a17d837ac0f17edb26f1b6c80c0abda6343", "tree": "ff9c8ee81e102f297d53fca6ecda25af2bb8f818", "parents": [ "193cf4b99113a4550598ba9e8343e591fc062e23" ], "author": { "name": "Helight.Xu", "email": "helight.xu@gmail.com", "time": "Wed Dec 30 13:24:41 2009 +0800" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Mar 03 13:00:18 2010 -0500" }, "message": "some clean up in fs/proc\n\nEXPORT_SYMBOL(proc_symlink);\nEXPORT_SYMBOL(proc_mkdir);\nEXPORT_SYMBOL(create_proc_entry);\nEXPORT_SYMBOL(proc_create_data);\nEXPORT_SYMBOL(remove_proc_entry);\n\nThose EXPORT_SYMBOL shouldn\u0027t be in fs/proc/root.c,\nshould be in fs/proc/generic.c.\n\nSigned-off-by: Helight.Xu \u003chelight.xu@gmail.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "b4ccebdd37ff70d349321a198f416ba737a5e833", "tree": "275d717070346722c3aacd8355fb4f743216e03b", "parents": [ "30ff056c42c665b9ea535d8515890857ae382540", "ef57471a73b67a7b65fd8708fd55c77cb7c619af" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Mar 01 09:36:31 2010 +1100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Mar 01 09:36:31 2010 +1100" }, "message": "Merge branch \u0027next\u0027 into for-linus\n" }, { "commit": "642c4c75a765d7a3244ab39c8e6fb09be21eca5b", "tree": "ce0be9b476f362835d3a3d6e4fd32801cd15c9fe", "parents": [ "f91b22c35f6b0ae06ec5b67922eca1999c3b6e0a", "71da81324c83ef65bb196c7f874ac1c6996d8287" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Feb 28 10:13:16 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Feb 28 10:13:16 2010 -0800" }, "message": "Merge branch \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (44 commits)\n rcu: Fix accelerated GPs for last non-dynticked CPU\n rcu: Make non-RCU_PROVE_LOCKING rcu_read_lock_sched_held() understand boot\n rcu: Fix accelerated grace periods for last non-dynticked CPU\n rcu: Export rcu_scheduler_active\n rcu: Make rcu_read_lock_sched_held() take boot time into account\n rcu: Make lockdep_rcu_dereference() message less alarmist\n sched, cgroups: Fix module export\n rcu: Add RCU_CPU_STALL_VERBOSE to dump detailed per-task information\n rcu: Fix rcutorture mod_timer argument to delay one jiffy\n rcu: Fix deadlock in TREE_PREEMPT_RCU CPU stall detection\n rcu: Convert to raw_spinlocks\n rcu: Stop overflowing signed integers\n rcu: Use canonical URL for Mathieu\u0027s dissertation\n rcu: Accelerate grace period if last non-dynticked CPU\n rcu: Fix citation of Mathieu\u0027s dissertation\n rcu: Documentation update for CONFIG_PROVE_RCU\n security: Apply lockdep-based checking to rcu_dereference() uses\n idr: Apply lockdep-based diagnostics to rcu_dereference() uses\n radix-tree: Disable RCU lockdep checking in radix tree\n vfs: Abstract rcu_dereference_check for files-fdtable use\n ...\n" }, { "commit": "6ebdc661b608671e9ca572af8bb42d58108cc008", "tree": "e99caacb964a27caeae699160fa5eddcb14526e9", "parents": [ "d7930c9ef9cc67044f5ddaac54d06ca22645a012", "df0edeb59eb559be0bee53452fda2f5cc0ae133f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 25 15:38:37 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Feb 25 15:38:37 2010 -0800" }, "message": "Merge branch \u0027next-devicetree\u0027 of git://git.secretlab.ca/git/linux-2.6\n\n* \u0027next-devicetree\u0027 of git://git.secretlab.ca/git/linux-2.6: (41 commits)\n of: remove undefined request_OF_resource \u0026 release_OF_resource\n of/sparc: Remove sparc-local declaration of allnodes and devtree_lock\n of: move definition of of_chosen into common code.\n of: remove unused extern reference to devtree_lock\n of: put default string compare and #a/s-cell values into common header\n of/flattree: Don\u0027t assume HAVE_LMB\n of: protect linux/of.h with CONFIG_OF\n proc_devtree: fix THIS_MODULE without module.h\n of: Remove old and misplaced function declarations\n of/flattree: Make the kernel accept ePAPR style phandle information\n of/flattree: endian-convert members of boot_param_header\n of: assume big-endian properties, adding conversions where necessary\n of: use __be32 for cell value accessors\n of/flattree: use OF_ROOT_NODE_{SIZE,ADDR}_CELLS DEFAULT for fdt parsing\n of/flattree: use callback to setup initrd from /chosen\n proc_devtree: include linux/of.h\n of: make set_node_proc_entry private to proc_devtree.c\n of: include linux/proc_fs.h\n of/flattree: merge early_init_dt_scan_memory() common code\n of: add \u0027of_\u0027 prefix to machine_is_compatible()\n ...\n" }, { "commit": "7dc52157982ab771f40e3c0b7dc55b954c3c2d19", "tree": "a41e39174d9535f0c678eb36249ceee4a1775d6b", "parents": [ "497f0ab39cd25bed317b29482c147c967f7ecd1f" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Feb 22 17:04:52 2010 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Feb 25 10:34:48 2010 +0100" }, "message": "vfs: Apply lockdep-based checking to rcu_dereference() uses\n\nAdd lockdep-ified RCU primitives to alloc_fd(), files_fdtable()\nand fcheck_files().\n\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nLKML-Reference: \u003c1266887105-1528-8-git-send-email-paulmck@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7fee4868be91e71a3ee8e57289ebf5e10a12297e", "tree": "b2bdbfa885e60fb1c04c2b5fca30ba5fa150fecd", "parents": [ "ac278a9c505092dd82077a2446af8f9fc0d9c095" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Jan 14 01:03:28 2010 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Feb 19 10:25:41 2010 -0500" }, "message": "Switch proc/self to nd_set_link()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7c540d9e3da38c3d1c15fb8059e4577a84ac0066", "tree": "5cbddd96076c4655154c72e73f852e81af2506f3", "parents": [ "21b082ecdd7e6b8a5eba2cc013cae41b24de7f51" ], "author": { "name": "Jeremy Kerr", "email": "jeremy.kerr@canonical.com", "time": "Sun Feb 14 07:13:41 2010 -0700" }, "committer": { "name": "Grant Likely", "email": "grant.likely@secretlab.ca", "time": "Sun Feb 14 07:13:41 2010 -0700" }, "message": "proc_devtree: fix THIS_MODULE without module.h\n\nCommit e22f628395432b967f2f505858c64450f7835365 introduced a build\nbreakage for ARM devtree work: the THIS_MODULE macro was added, but we\ndon\u0027t have module.h\n\nThis change adds the necessary #include to get THIS_MODULE defined.\nWhile we could just replace it with NULL (PROC_FS is a bool, not a\ntristate), using THIS_MODULE will prevent unexpected breakage if we\never do compile this as a module.\n\nSigned-off-by: Jeremy Kerr \u003cjeremy.kerr@canonical.com\u003e\nSigned-off-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\nAcked-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Michal Simek \u003cmonstr@monstr.eu\u003e\n" }, { "commit": "50ab2fe147e22c8786552cda1791a61ae81b84d2", "tree": "62be0d312fbf7c4806d431e9ec6bc190b0876a46", "parents": [ "8cfb3343f70bcf9403218df120ecf345f06dd585" ], "author": { "name": "Jeremy Kerr", "email": "jeremy.kerr@canonical.com", "time": "Mon Feb 01 21:34:14 2010 -0700" }, "committer": { "name": "Grant Likely", "email": "grant.likely@secretlab.ca", "time": "Tue Feb 09 08:34:10 2010 -0700" }, "message": "proc_devtree: include linux/of.h\n\nCurrenly, proc_devtree.c depends on asm/prom.h to include linux/of.h, to\nprovide some device-tree definitions (eg, struct property).\n\nInstead, include linux/of.h directly. We still need asm/prom.h for\nHAVE_ARCH_DEVTREE_FIXUPS.\n\nSigned-off-by: Jeremy Kerr \u003cjeremy.kerr@canonical.com\u003e\nSigned-off-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\n" }, { "commit": "8cfb3343f70bcf9403218df120ecf345f06dd585", "tree": "59fc53d15ab487d26ee14ed5c62648b93c9d894f", "parents": [ "a9f2f63a671d5e91ed89ade408d87f1692a373de" ], "author": { "name": "Jeremy Kerr", "email": "jeremy.kerr@canonical.com", "time": "Mon Feb 01 21:34:14 2010 -0700" }, "committer": { "name": "Grant Likely", "email": "grant.likely@secretlab.ca", "time": "Tue Feb 09 08:34:10 2010 -0700" }, "message": "of: make set_node_proc_entry private to proc_devtree.c\n\nWe only need set_node_proc_entry in proc_devtree.c, so move it there.\n\nThis fixes the !HAVE_ARCH_DEVTREE_FIXUPS build, as we can\u0027t make make\nthe definition in linux/of.h conditional on this #define (definitions in\nasm/prom.h can\u0027t be exposed to linux/of.h, due to the enforced #include\nordering).\n\nSigned-off-by: Jeremy Kerr \u003cjeremy.kerr@canonical.com\u003e\nSigned-off-by: Grant Likely \u003cgrant.likely@secretlab.ca\u003e\n" }, { "commit": "d78ca3cd733d8a2c3dcd88471beb1a15d973eed8", "tree": "a27ccf86f5f7df3cc987d0203ed0bff2db46db57", "parents": [ "002345925e6c45861f60db6f4fc6236713fd8847" ], "author": { "name": "Kees Cook", "email": "kees.cook@canonical.com", "time": "Wed Feb 03 15:37:13 2010 -0800" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Feb 04 14:20:41 2010 +1100" }, "message": "syslog: use defined constants instead of raw numbers\n\nRight now the syslog \"type\" action are just raw numbers which makes\nthe source difficult to follow. This patch replaces the raw numbers\nwith defined constants for some level of sanity.\n\nSigned-off-by: Kees Cook \u003ckees.cook@canonical.com\u003e\nAcked-by: John Johansen \u003cjohn.johansen@canonical.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "002345925e6c45861f60db6f4fc6236713fd8847", "tree": "d7849eafe1755116597166bbebf43e2bee86cb76", "parents": [ "0719aaf5ead7555b7b7a4a080ebf2826a871384e" ], "author": { "name": "Kees Cook", "email": "kees.cook@canonical.com", "time": "Wed Feb 03 15:36:43 2010 -0800" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Feb 04 14:20:12 2010 +1100" }, "message": "syslog: distinguish between /proc/kmsg and syscalls\n\nThis allows the LSM to distinguish between syslog functions originating\nfrom /proc/kmsg access and direct syscalls. By default, the commoncaps\nwill now no longer require CAP_SYS_ADMIN to read an opened /proc/kmsg\nfile descriptor. For example the kernel syslog reader can now drop\nprivileges after opening /proc/kmsg, instead of staying privileged with\nCAP_SYS_ADMIN. MAC systems that implement security_syslog have unchanged\nbehavior.\n\nSigned-off-by: Kees Cook \u003ckees.cook@canonical.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: John Johansen \u003cjohn.johansen@canonical.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "86acdca1b63e6890540fa19495cfc708beff3d8b", "tree": "f589566363ef4f77098eba9ced48325f410168e6", "parents": [ "004b35063296b6772fa72404a35b498f1e71e87e" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Dec 22 23:45:11 2009 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Jan 14 09:05:25 2010 -0500" }, "message": "fix autofs/afs/etc. magic mountpoint breakage\n\nWe end up trying to kfree() nd.last.name on open(\"/mnt/tmp\", O_CREAT)\nif /mnt/tmp is an autofs direct mount. The reason is that nd.last_type\nis bogus here; we want LAST_BIND for everything of that kind and we\nget LAST_NORM left over from finding parent directory.\n\nSo make sure that it *is* set properly; set to LAST_BIND before\ndoing -\u003efollow_link() - for normal symlinks it will be changed\nby __vfs_follow_link() and everything else needs it set that way.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7f53a09ed40f08416b3029ada8f02252e7596c18", "tree": "51d2bef1ca3a4667e5b9058b6f2b365edd101ebd", "parents": [ "d2b34e20c1f431604e0dde910c3ff271c84ed706" ], "author": { "name": "Minchan Kim", "email": "minchan.kim@gmail.com", "time": "Fri Jan 08 14:43:10 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jan 11 09:34:07 2010 -0800" }, "message": "smaps: fix wrong rss count\n\nA long time ago we regarded zero page as file_rss and vm_normal_page\ndoesn\u0027t return NULL.\n\nBut now, we reinstated ZERO_PAGE and vm_normal_page\u0027s implementation can\nreturn NULL in case of zero page. Also we don\u0027t count it with file_rss\nany more.\n\nThen, RSS and PSS can\u0027t be matched. For consistency, Let\u0027s ignore zero\npage in smaps_pte_range.\n\nSigned-off-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nReviewed-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": "1306d603fcf1f6682f8575d1ff23631a24184b21", "tree": "8e2278cfabf874cb16bf03bd182ae75b87055741", "parents": [ "f146aabfe921006b98dfa4a78506763aedfd3206" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Fri Jan 08 14:42:56 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jan 11 09:34:06 2010 -0800" }, "message": "proc: partially revert \"procfs: provide stack information for threads\"\n\nCommit d899bf7b (procfs: provide stack information for threads) introduced\nto show stack information in /proc/{pid}/status. But it cause large\nperformance regression. Unfortunately /proc/{pid}/status is used ps\ncommand too and ps is one of most important component. Because both to\ntake mmap_sem and page table walk are heavily operation.\n\nIf many process run, the ps performance is,\n\n[before d899bf7b]\n\n% perf stat ps \u003e/dev/null\n\n Performance counter stats for \u0027ps\u0027:\n\n 4090.435806 task-clock-msecs # 0.032 CPUs\n 229 context-switches # 0.000 M/sec\n 0 CPU-migrations # 0.000 M/sec\n 234 page-faults # 0.000 M/sec\n 8587565207 cycles # 2099.425 M/sec\n 9866662403 instructions # 1.149 IPC\n 3789415411 cache-references # 926.409 M/sec\n 30419509 cache-misses # 7.437 M/sec\n\n 128.859521955 seconds time elapsed\n\n[after d899bf7b]\n\n% perf stat ps \u003e /dev/null\n\n Performance counter stats for \u0027ps\u0027:\n\n 4305.081146 task-clock-msecs # 0.028 CPUs\n 480 context-switches # 0.000 M/sec\n 2 CPU-migrations # 0.000 M/sec\n 237 page-faults # 0.000 M/sec\n 9021211334 cycles # 2095.480 M/sec\n 10605887536 instructions # 1.176 IPC\n 3612650999 cache-references # 839.160 M/sec\n 23917502 cache-misses # 5.556 M/sec\n\n 152.277819582 seconds time elapsed\n\nThus, this patch revert it. Fortunately /proc/{pid}/task/{tid}/smaps\nprovide almost same information. we can use it.\n\nCommit d899bf7b introduced two features:\n\n 1) Add the annotattion of [thread stack: xxxx] mark to\n /proc/{pid}/task/{tid}/maps.\n 2) Add StackUsage field to /proc/{pid}/status.\n\nI only revert (2), because I haven\u0027t seen (1) cause regression.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Stefani Seibold \u003cstefani@seibold.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\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": "aac3d39693529ca538e37ebdb6ed5d6432a697c7", "tree": "bb1b0c9fe0538008aa2c97c6f5d9dfc2a4c34190", "parents": [ "10e5453ffa0d04a2eda3cda3f55b88cb9c04595f", "077614ee1e93245a3b9a4e1213659405dbeb0ba6" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 19 09:47:49 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 19 09:47:49 2009 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (25 commits)\n sched: Fix broken assertion\n sched: Assert task state bits at build time\n sched: Update task_state_arraypwith new states\n sched: Add missing state chars to TASK_STATE_TO_CHAR_STR\n sched: Move TASK_STATE_TO_CHAR_STR near the TASK_state bits\n sched: Teach might_sleep() about preemptible RCU\n sched: Make warning less noisy\n sched: Simplify set_task_cpu()\n sched: Remove the cfs_rq dependency from set_task_cpu()\n sched: Add pre and post wakeup hooks\n sched: Move kthread_bind() back to kthread.c\n sched: Fix select_task_rq() vs hotplug issues\n sched: Fix sched_exec() balancing\n sched: Ensure set_task_cpu() is never called on blocked tasks\n sched: Use TASK_WAKING for fork wakups\n sched: Select_task_rq_fair() must honour SD_LOAD_BALANCE\n sched: Fix task_hot() test order\n sched: Fix set_cpu_active() in cpu_down()\n sched: Mark boot-cpu active before smp_init()\n sched: Fix cpu_clock() in NMIs, on !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK\n ...\n" }, { "commit": "e1781538cf5c870ab696e9b8f0a5c498d3900f2f", "tree": "42027696b4bc241194299b29cef2ae814b087acd", "parents": [ "464763cf1c6df632dccc8f2f4c7e50163154a2c0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Dec 17 13:16:30 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 17 13:22:45 2009 +0100" }, "message": "sched: Assert task state bits at build time\n\nSince everybody is lazy and prone to forgetting things, make the\ncompiler help us a bit.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20091217121830.060186433@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "464763cf1c6df632dccc8f2f4c7e50163154a2c0", "tree": "1d1107fb4d5261f5606a8cffbc39e4c07c81c972", "parents": [ "44d90df6b757c59651ddd55f1a84f28132b50d29" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Dec 17 13:16:29 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 17 13:22:45 2009 +0100" }, "message": "sched: Update task_state_arraypwith new states\n\nNeglected because its hidden... (who reads comments anyway)\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20091217121829.970166036@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d4220f987cf473c65a342ca69e3eb13dea919a49", "tree": "dbb004a9c805d6de3f6e3955398fee1084a29f16", "parents": [ "61cf693159d6a968a7014e24905143f71ed8ddcf", "f2c03debdfb387fa2e35cac6382779072b8b9209" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 16 12:36:49 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 16 12:36:49 2009 -0800" }, "message": "Merge branch \u0027hwpoison\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6\n\n* \u0027hwpoison\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: (34 commits)\n HWPOISON: Remove stray phrase in a comment\n HWPOISON: Try to allocate migration page on the same node\n HWPOISON: Don\u0027t do early filtering if filter is disabled\n HWPOISON: Add a madvise() injector for soft page offlining\n HWPOISON: Add soft page offline support\n HWPOISON: Undefine short-hand macros after use to avoid namespace conflict\n HWPOISON: Use new shake_page in memory_failure\n HWPOISON: Use correct name for MADV_HWPOISON in documentation\n HWPOISON: mention HWPoison in Kconfig entry\n HWPOISON: Use get_user_page_fast in hwpoison madvise\n HWPOISON: add an interface to switch off/on all the page filters\n HWPOISON: add memory cgroup filter\n memcg: add accessor to mem_cgroup.css\n memcg: rename and export try_get_mem_cgroup_from_page()\n HWPOISON: add page flags filter\n mm: export stable page flags\n HWPOISON: limit hwpoison injector to known page types\n HWPOISON: add fs/device filters\n HWPOISON: return 0 to indicate success reliably\n HWPOISON: make semantics of IGNORED/DELAYED clear\n ...\n" }, { "commit": "698ba7b5a3a7be772922340fade365c675b8243f", "tree": "3e251d4ee8cbd8489d75e7570b2d821395021d59", "parents": [ "d1da96aada79fd1d29ae4e3157120d1ce1e77594" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Dec 15 16:47:37 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 16 07:20:12 2009 -0800" }, "message": "elf: kill USE_ELF_CORE_DUMP\n\nCurrently all architectures but microblaze unconditionally define\nUSE_ELF_CORE_DUMP. The microblaze omission seems like an error to me, so\nlet\u0027s kill this ifdef and make sure we are the same everywhere.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: Michal Simek \u003cmichal.simek@petalogix.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "135d5655dc58a24eda64e3f6c192d7d605e10050", "tree": "4851018ab64c1173059198dde42501cc615886b4", "parents": [ "f065f41f48569122b5bcddbd1ba2354f7cc29fdc" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Dec 15 16:45:39 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 16 07:19:57 2009 -0800" }, "message": "proc: rename de_get() to pde_get() and inline it\n\n* de_get() is trivial -- make inline, save a few bits of code, drop\n \"refcount is 0\" check -- it should be done in some generic refcount\n code, don\u0027t recall it\u0027s was helpful\n\n* rename GET and PUT functions to pde_get(), pde_put() for cool prefix!\n\n* remove obvious and incorrent comments\n\n* in remove_proc_entry() use pde_put(), when I fixed PDE refcounting to\n be normal one, remove_proc_entry() was supposed to do \"-1\" and code now\n reflects that.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "1a9b5b7fe0c5dad8a635288882d36785dea742f9", "tree": "a179debe5795643c63db2bb7ffbcfb559fbf88d2", "parents": [ "31d3d3484f9bd263925ecaa341500ac2df3a5d9b" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Wed Dec 16 12:19:59 2009 +0100" }, "committer": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Wed Dec 16 12:19:59 2009 +0100" }, "message": "mm: export stable page flags\n\nRename get_uflags() to stable_page_flags() and make it a global function\nfor use in the hwpoison page flags filter, which need to compare user\npage flags with the value provided by user space.\n\nAlso move KPF_* to kernel-page-flags.h for use by user space tools.\n\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCC: Nick Piggin \u003cnpiggin@suse.de\u003e\nCC: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\n" }, { "commit": "4614a696bd1c3a9af3a08f0e5874830a85b889d4", "tree": "0b363d89ce612ab8557d49ab8b0f49b8520ffa66", "parents": [ "7e1e0ef22c9ba9f797d7c4448feee722584bba5c" ], "author": { "name": "john stultz", "email": "johnstul@us.ibm.com", "time": "Mon Dec 14 18:00:05 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 15 08:53:24 2009 -0800" }, "message": "procfs: allow threads to rename siblings via /proc/pid/tasks/tid/comm\n\nSetting a thread\u0027s comm to be something unique is a very useful ability\nand is helpful for debugging complicated threaded applications. However\ncurrently the only way to set a thread name is for the thread to name\nitself via the PR_SET_NAME prctl.\n\nHowever, there may be situations where it would be advantageous for a\nthread dispatcher to be naming the threads its managing, rather then\nhaving the threads self-describe themselves. This sort of behavior is\navailable on other systems via the pthread_setname_np() interface.\n\nThis patch exports a task\u0027s comm via proc/pid/comm and\nproc/pid/task/tid/comm interfaces, and allows thread siblings to write to\nthese values.\n\n[akpm@linux-foundation.org: cleanups]\nSigned-off-by: John Stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Mike Fulton \u003cfultonm@ca.ibm.com\u003e\nCc: Sean Foley \u003cSean_Foley@ca.ibm.com\u003e\nCc: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nCc: 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": "7e1e0ef22c9ba9f797d7c4448feee722584bba5c", "tree": "892fd5374f4815891065f148617fefc601e19219", "parents": [ "ea637639591def87a54cea811cbac796980cb30d" ], "author": { "name": "Steven J. Magnani", "email": "steve@digidescorp.com", "time": "Mon Dec 14 18:00:04 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 15 08:53:24 2009 -0800" }, "message": "procfs: use proper units for noMMU statm\n\nOn no-MMU systems, sizes reported in /proc/n/statm have units of bytes.\nPer Documentation/filesystems/proc.txt, these values should be in pages.\n\nSigned-off-by: Steven J. Magnani \u003csteve@digidescorp.com\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nCc: David Howells \u003cdhowells@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": "5dc37642cbce34619e4588a9f0bdad1d2f870956", "tree": "00165a3a0b3d768abaf83cf44642f09398b989cc", "parents": [ "d33b9f45bd24a6391bc05e2b5a13c1b5787ca9c2" ], "author": { "name": "Naoya Horiguchi", "email": "n-horiguchi@ah.jp.nec.com", "time": "Mon Dec 14 18:00:01 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 15 08:53:24 2009 -0800" }, "message": "mm hugetlb: add hugepage support to pagemap\n\nThis patch enables extraction of the pfn of a hugepage from\n/proc/pid/pagemap in an architecture independent manner.\n\nDetails\n-------\nMy test program (leak_pagemap) works as follows:\n - creat() and mmap() a file on hugetlbfs (file size is 200MB \u003d\u003d 100 hugepages,)\n - read()/write() something on it,\n - call page-types with option -p,\n - munmap() and unlink() the file on hugetlbfs\n\nWithout my patches\n------------------\n$ ./leak_pagemap\n flags page-count MB symbolic-flags long-symbolic-flags\n0x0000000000000000 1 0 __________________________________\n0x0000000000000804 1 0 __R________M______________________ referenced,mmap\n0x000000000000086c 81 0 __RU_lA____M______________________ referenced,uptodate,lru,active,mmap\n0x0000000000005808 5 0 ___U_______Ma_b___________________ uptodate,mmap,anonymous,swapbacked\n0x0000000000005868 12 0 ___U_lA____Ma_b___________________ uptodate,lru,active,mmap,anonymous,swapbacked\n0x000000000000586c 1 0 __RU_lA____Ma_b___________________ referenced,uptodate,lru,active,mmap,anonymous,swapbacked\n total 101 0\n\nThe output of page-types don\u0027t show any hugepage.\n\nWith my patches\n---------------\n$ ./leak_pagemap\n flags page-count MB symbolic-flags long-symbolic-flags\n0x0000000000000000 1 0 __________________________________\n0x0000000000030000 51100 199 ________________TG________________ compound_tail,huge\n0x0000000000028018 100 0 ___UD__________H_G________________ uptodate,dirty,compound_head,huge\n0x0000000000000804 1 0 __R________M______________________ referenced,mmap\n0x000000000000080c 1 0 __RU_______M______________________ referenced,uptodate,mmap\n0x000000000000086c 80 0 __RU_lA____M______________________ referenced,uptodate,lru,active,mmap\n0x0000000000005808 4 0 ___U_______Ma_b___________________ uptodate,mmap,anonymous,swapbacked\n0x0000000000005868 12 0 ___U_lA____Ma_b___________________ uptodate,lru,active,mmap,anonymous,swapbacked\n0x000000000000586c 1 0 __RU_lA____Ma_b___________________ referenced,uptodate,lru,active,mmap,anonymous,swapbacked\n total 51300 200\n\nThe output of page-types shows 51200 pages contributing to hugepages,\ncontaining 100 head pages and 51100 tail pages as expected.\n\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Naoya Horiguchi \u003cn-horiguchi@ah.jp.nec.com\u003e\nCc: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Andy Whitcroft \u003capw@canonical.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": "bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71", "tree": "2f6dffd2d3e4dd67355a224de7e7a960335a92fd", "parents": [ "11c34c7deaeeebcee342cbc35e1bb2a6711b2431", "3ff6a468b45b5dfeb0e903e56f4eb27d34b2437c" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Wed Dec 09 17:14:38 2009 +1100" }, "committer": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Wed Dec 09 17:14:38 2009 +1100" }, "message": "Merge commit \u0027origin/master\u0027 into next\n\nConflicts:\n\tinclude/linux/kvm.h\n" }, { "commit": "1557d33007f63dd96e5d15f33af389378e5f2e54", "tree": "06d05722b2ba5d2a67532f779fa8a88efe3c88f1", "parents": [ "6ec22f9b037fc0c2e00ddb7023fad279c365324d", "c656ae95d1c5c8ed5763356263ace2d03087efec" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 07:38:50 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 07:38:50 2009 -0800" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)\n security/tomoyo: Remove now unnecessary handling of security_sysctl.\n security/tomoyo: Add a special case to handle accesses through the internal proc mount.\n sysctl: Drop \u0026 in front of every proc_handler.\n sysctl: Remove CTL_NONE and CTL_UNNUMBERED\n sysctl: kill dead ctl_handler definitions.\n sysctl: Remove the last of the generic binary sysctl support\n sysctl net: Remove unused binary sysctl code\n sysctl security/tomoyo: Don\u0027t look at ctl_name\n sysctl arm: Remove binary sysctl support\n sysctl x86: Remove dead binary sysctl support\n sysctl sh: Remove dead binary sysctl support\n sysctl powerpc: Remove dead binary sysctl support\n sysctl ia64: Remove dead binary sysctl support\n sysctl s390: Remove dead sysctl binary support\n sysctl frv: Remove dead binary sysctl support\n sysctl mips/lasat: Remove dead binary sysctl support\n sysctl drivers: Remove dead binary sysctl support\n sysctl crypto: Remove dead binary sysctl support\n sysctl security/keys: Remove dead binary sysctl support\n sysctl kernel: Remove binary sysctl logic\n ...\n" }, { "commit": "897e81bea1fcfcd2c5cdb720c9efdb25da9ff374", "tree": "92cf33ed2c35c1ece633f09365702f1c8e24d415", "parents": [ "c3fa27d1367fac63ac8533d6f20ea851d0d70a10", "0cf55e1ec08bb5a22e068309e2d8ba1180ab4239" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 05 15:30:49 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 05 15:30:49 2009 -0800" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (35 commits)\n sched, cputime: Introduce thread_group_times()\n sched, cputime: Cleanups related to task_times()\n Revert \"sched, x86: Optimize branch hint in __switch_to()\"\n sched: Fix isolcpus boot option\n sched: Revert 498657a478c60be092208422fefa9c7b248729c2\n sched, time: Define nsecs_to_jiffies()\n sched: Remove task_{u,s,g}time()\n sched: Introduce task_times() to replace task_{u,s}time() pair\n sched: Limit the number of scheduler debug messages\n sched.c: Call debug_show_all_locks() when dumping all tasks\n sched, x86: Optimize branch hint in __switch_to()\n sched: Optimize branch hint in context_switch()\n sched: Optimize branch hint in pick_next_task_fair()\n sched_feat_write(): Update ppos instead of file-\u003ef_pos\n sched: Sched_rt_periodic_timer vs cpu hotplug\n sched, kvm: Fix race condition involving sched_in_preempt_notifers\n sched: More generic WAKE_AFFINE vs select_idle_sibling()\n sched: Cleanup select_task_rq_fair()\n sched: Fix granularity of task_u/stime()\n sched: Fix/add missing update_rq_clock() calls\n ...\n" }, { "commit": "0cf55e1ec08bb5a22e068309e2d8ba1180ab4239", "tree": "6102662a9594d51155bee11666fe8517fcbe6039", "parents": [ "d99ca3b977fc5a93141304f571475c2af9e6c1c5" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Wed Dec 02 17:28:07 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 02 17:32:40 2009 +0100" }, "message": "sched, cputime: Introduce thread_group_times()\n\nThis is a real fix for problem of utime/stime values decreasing\ndescribed in the thread:\n\n http://lkml.org/lkml/2009/11/3/522\n\nNow cputime is accounted in the following way:\n\n - {u,s}time in task_struct are increased every time when the thread\n is interrupted by a tick (timer interrupt).\n\n - When a thread exits, its {u,s}time are added to signal-\u003e{u,s}time,\n after adjusted by task_times().\n\n - When all threads in a thread_group exits, accumulated {u,s}time\n (and also c{u,s}time) in signal struct are added to c{u,s}time\n in signal struct of the group\u0027s parent.\n\nSo {u,s}time in task struct are \"raw\" tick count, while\n{u,s}time and c{u,s}time in signal struct are \"adjusted\" values.\n\nAnd accounted values are used by:\n\n - task_times(), to get cputime of a thread:\n This function returns adjusted values that originates from raw\n {u,s}time and scaled by sum_exec_runtime that accounted by CFS.\n\n - thread_group_cputime(), to get cputime of a thread group:\n This function returns sum of all {u,s}time of living threads in\n the group, plus {u,s}time in the signal struct that is sum of\n adjusted cputimes of all exited threads belonged to the group.\n\nThe problem is the return value of thread_group_cputime(),\nbecause it is mixed sum of \"raw\" value and \"adjusted\" value:\n\n group\u0027s {u,s}time \u003d foreach(thread){{u,s}time} + exited({u,s}time)\n\nThis misbehavior can break {u,s}time monotonicity.\nAssume that if there is a thread that have raw values greater\nthan adjusted values (e.g. interrupted by 1000Hz ticks 50 times\nbut only runs 45ms) and if it exits, cputime will decrease (e.g.\n-5ms).\n\nTo fix this, we could do:\n\n group\u0027s {u,s}time \u003d foreach(t){task_times(t)} + exited({u,s}time)\n\nBut task_times() contains hard divisions, so applying it for\nevery thread should be avoided.\n\nThis patch fixes the above problem in the following way:\n\n - Modify thread\u0027s exit (\u003d __exit_signal()) not to use task_times().\n It means {u,s}time in signal struct accumulates raw values instead\n of adjusted values. As the result it makes thread_group_cputime()\n to return pure sum of \"raw\" values.\n\n - Introduce a new function thread_group_times(*task, *utime, *stime)\n that converts \"raw\" values of thread_group_cputime() to \"adjusted\"\n values, in same calculation procedure as task_times().\n\n - Modify group\u0027s exit (\u003d wait_task_zombie()) to use this introduced\n thread_group_times(). It make c{u,s}time in signal struct to\n have adjusted values like before this patch.\n\n - Replace some thread_group_cputime() by thread_group_times().\n This replacements are only applied where conveys the \"adjusted\"\n cputime to users, and where already uses task_times() near by it.\n (i.e. sys_times(), getrusage(), and /proc/\u003cPID\u003e/stat.)\n\nThis patch have a positive side effect:\n\n - Before this patch, if a group contains many short-life threads\n (e.g. runs 0.9ms and not interrupted by ticks), the group\u0027s\n cputime could be invisible since thread\u0027s cputime was accumulated\n after adjusted: imagine adjustment function as adj(ticks, runtime),\n {adj(0, 0.9) + adj(0, 0.9) + ....} \u003d {0 + 0 + ....} \u003d 0.\n After this patch it will not happen because the adjustment is\n applied after accumulated.\n\nv2:\n - remove if()s, put new variables into signal_struct.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nLKML-Reference: \u003c4B162517.8040909@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d5b7c78e975302a1bab28263266c39ecb71acad4", "tree": "47d9a18b2e81b3f93faf89b548b50beff29dd4fe", "parents": [ "d180c5bccec02612256fd8076ff3c1fac3429553" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Thu Nov 26 14:49:05 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 12:59:20 2009 +0100" }, "message": "sched: Remove task_{u,s,g}time()\n\nNow all task_{u,s}time() pairs are replaced by task_times().\nAnd task_gtime() is too simple to be an inline function.\n\nCleanup them all.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nLKML-Reference: \u003c4B0E16D1.70902@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d180c5bccec02612256fd8076ff3c1fac3429553", "tree": "1ef4a45c81531645640380965916c68bbe7f6abb", "parents": [ "16bc67edeb49b531940b2ba6c183780a1b5c472d" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Thu Nov 26 14:48:30 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 12:59:19 2009 +0100" }, "message": "sched: Introduce task_times() to replace task_{u,s}time() pair\n\nFunctions task_{u,s}time() are called in pair in almost all\ncases. However task_stime() is implemented to call task_utime()\nfrom its inside, so such paired calls run task_utime() twice.\n\nIt means we do heavy divisions (div_u64 + do_div) twice to get\nutime and stime which can be obtained at same time by one set\nof divisions.\n\nThis patch introduces a function task_times(*tsk, *utime,\n*stime) to retrieve utime and stime at once in better, optimized\nway.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nLKML-Reference: \u003c4B0E16AE.906@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "16bc67edeb49b531940b2ba6c183780a1b5c472d", "tree": "71b4bc48e47e54f2c0b3126d8f81d2f31b707ea8", "parents": [ "f6630114d9198aa959ac95c131334c020038f253", "047106adcc85e3023da210143a6ab8a55df9e0fc" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 10:50:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 10:50:42 2009 +0100" }, "message": "Merge branch \u0027sched/urgent\u0027 into sched/core\n\nMerge reason: Pick up fixes that did not make it into .32.0\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1e43bee9c70654b4d52472c19e5f0a0cc18b6b36", "tree": "ff601ec0c0d14125d0324f21b3c7e6d5e19fa252", "parents": [ "7d6709a20866a885916214590b7c394a21be9e25", "a8a8a669ea13d792296737505adc43ccacf3a648" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Tue Nov 24 17:16:30 2009 +1100" }, "committer": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Tue Nov 24 17:16:30 2009 +1100" }, "message": "Merge commit \u0027origin/master\u0027 into next\n" }, { "commit": "9ebd4eba761b624a6a6c9189335adeddcb1fa0e0", "tree": "8b5b5fc3514df3edf8bf6436636bf813c1f51e8c", "parents": [ "6ad696d2cf535772dff659298ec7e7260e344595" ], "author": { "name": "Stefani Seibold", "email": "stefani@seibold.net", "time": "Tue Nov 17 14:06:23 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 17 17:40:33 2009 -0800" }, "message": "procfs: fix /proc/\u003cpid\u003e/stat stack pointer for kernel threads\n\nFix a small issue for the stack pointer in /proc/\u003cpid\u003e/stat. In case of a\nkernel thread the value of the printed stack pointer should be 0.\n\nSigned-off-by: Stefani Seibold \u003cstefani@seibold.net\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": "bb9074ff58fe745e4f244f76209241909c82ec9c", "tree": "cf6be00ab88b1e315f6b74a896a370440f677599", "parents": [ "4739a9748e1bd7459f22f7e94e7d85710ca83954", "156171c71a0dc4bce12b4408bb1591f8fe32dc1a" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Nov 17 01:01:34 2009 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Nov 17 01:01:34 2009 -0800" }, "message": "Merge commit \u0027v2.6.32-rc7\u0027\n\nResolve the conflict between v2.6.32-rc7 where dn_def_dev_handler\ngets a small bug fix and the sysctl tree where I am removing all\nsysctl strategy routines.\n" }, { "commit": "29f12ca32122db98481150be09d35bd72b68045e", "tree": "df2bbe3d67451a6c51a5056a40cd8dfa09dd5b29", "parents": [ "15f3c476589c8778b0c10f1fb5160f9107c69556" ], "author": { "name": "Sukadev Bhattiprolu", "email": "sukadev@linux.vnet.ibm.com", "time": "Wed Nov 11 14:26:32 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 12 07:25:57 2009 -0800" }, "message": "pidns: fix a leak in /proc dentries and inodes with pid namespaces.\n\nDaniel Lezcano reported a leak in \u0027struct pid\u0027 and \u0027struct pid_namespace\u0027\nthat is discussed in:\n\n\thttp://lkml.org/lkml/2009/10/2/159.\n\nTo summarize the thread, when container-init is terminated, it sets the\nPF_EXITING flag, zaps other processes in the container and waits to reap\nthem. As a part of reaping, the container-init should flush any /proc\ndentries associated with the processes. But because the container-init is\nitself exiting and the following PF_EXITING check, the dentries are not\nflushed, resulting in leak in /proc inodes and dentries.\n\nThis fix reverts the commit 7766755a2f249e7e0 (\"Fix /proc dcache deadlock\nin do_exit\") which introduced the check for PF_EXITING. At the time of\nthe commit, shrink_dcache_parent() flushed dentries from other filesystems\nalso and could have caused a deadlock which the commit fixed. But as\npointed out by Eric Biederman, after commit 0feae5c47aabdde59,\nshrink_dcache_parent() no longer affects other filesystems. So reverting\nthe commit is now safe.\n\nAs pointed out by Jan Kara, the leak is not as critical since the\nunclaimed space will be reclaimed under memory pressure or by:\n\n\techo 3 \u003e /proc/sys/vm/drop_caches\n\nBut since this check is no longer required, its best to remove it.\n\nSigned-off-by: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nReported-by: Daniel Lezcano \u003cdlezcano@fr.ibm.com\u003e\nAcked-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nAcked-by: Jan Kara \u003cjack@ucw.cz\u003e\nCc: Andrea Arcangeli \u003candrea@cpushare.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: \u003cstable@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": "2315ffa0a9f789c588c7139effa7404a387d8685", "tree": "756d32f0ab8b67e9d45a1e4399c9ee6080909e70", "parents": [ "6fce56ec91b502ba6fcbbc2a6d25a8c2c7f77934" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Apr 03 03:18:02 2009 -0700" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Nov 11 00:53:43 2009 -0800" }, "message": "sysctl: Don\u0027t look at ctl_name and strategy in the generic code\n\nThe ctl_name and strategy fields are unused, now that sys_sysctl\nis a compatibility wrapper around /proc/sys. No longer looking\nat them in the generic code is effectively what we are doing\nnow and provides the guarantee that during further cleanups\nwe can just remove references to those fields and everything\nwill work ok.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "e22f628395432b967f2f505858c64450f7835365", "tree": "32871701810d8c3c87b6cc2041a468d5c0bad36a", "parents": [ "5a1eb5c4453207ad9e7f6e8ca4f8db289743c993" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Sun Sep 06 23:31:25 2009 +0000" }, "committer": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Fri Oct 30 17:20:51 2009 +1100" }, "message": "Convert /proc/device-tree/ to seq_file\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\n" }, { "commit": "370c28def65b3a5765192753a164403619b41d01", "tree": "cb77542b92402cdd3aec14d01597fe04bd19b44b", "parents": [ "92f7ba70eecf4da8264a767b181cc2090f62d4ad" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Oct 26 16:49:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 07:39:25 2009 -0700" }, "message": "hwpoison: fix/proc/meminfo alignment\n\nGiven such a long name, the kB count in /proc/meminfo\u0027s HardwareCorrupted\nline is being shown too far right (it does align with x86_64\u0027s VmallocChunk\nabove, but I hope nobody will ever have that much corrupted!). Align it.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\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": "ce0e7b28fb75cb003cfc8d0238613aaf1c55e797", "tree": "e70bec2040045b68876d85036756bc046b5d2742", "parents": [ "0b9e31e9264f1bad89856afb96da1688292f13b4" ], "author": { "name": "Ryota Ozaki", "email": "ozaki.ryota@gmail.com", "time": "Sat Oct 24 01:20:10 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Oct 25 17:31:30 2009 +0100" }, "message": "sched, cpuacct: Fix niced guest time accounting\n\nCPU time of a guest is always accounted in \u0027user\u0027 time\nwithout concern for the nice value of its counterpart\nprocess although the guest is scheduled under the nice\nvalue.\n\nThis patch fixes the defect and accounts cpu time of\na niced guest in \u0027nice\u0027 time as same as a niced process.\n\nAnd also the patch adds \u0027guest_nice\u0027 to cpuacct. The\nvalue provides niced guest cpu time which is like \u0027nice\u0027\nto \u0027user\u0027.\n\nThe original discussions can be found here:\n\n http://www.mail-archive.com/kvm@vger.kernel.org/msg23982.html\n http://www.mail-archive.com/kvm@vger.kernel.org/msg23860.html\n\nSigned-off-by: Ryota Ozaki \u003cozaki.ryota@gmail.com\u003e\nAcked-by: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1256314810-7897-1-git-send-email-ozaki.ryota@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0b9e31e9264f1bad89856afb96da1688292f13b4", "tree": "7a9e9b6456dce993efeed8734de0a15a1f16ae94", "parents": [ "cf82ff7ea7695b0e82ba07bc5e9f1bd03a74e1aa", "964fe080d94db82a3268443e9b9ece4c60246414" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Oct 25 17:30:53 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Oct 25 17:30:53 2009 +0100" }, "message": "Merge branch \u0027linus\u0027 into sched/core\n\nConflicts:\n\tfs/proc/array.c\n\nMerge reason: resolve conflict and queue up dependent patch.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "253fb02d62571e5455eedc9e39b9d660e86a40f0", "tree": "f52fc8f0d792148d43e4e38ed48dc3666ef50b75", "parents": [ "7823da36ce8e42d66941887eb922768d259763f2" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Wed Oct 07 16:32:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 07:36:39 2009 -0700" }, "message": "pagemap: export KPF_HWPOISON\n\nThis flag indicates a hardware detected memory corruption on the page.\nAny future access of the page data may bring down the machine.\n\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\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": "4055e97318809638a57fbe1746b93bc7a90ef0d3", "tree": "8dedb30f4e9f2da35447a88d7a906427e48eb310", "parents": [ "3700c155af56b54adfc737ba3164a41de2c59d41" ], "author": { "name": "Jaswinder Singh Rajput", "email": "jaswinder@kernel.org", "time": "Wed Oct 07 16:32:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 07:36:38 2009 -0700" }, "message": "fs: includecheck fix: proc, kcore.c\n\nfix the following \u0027make includecheck\u0027 warning:\n\n fs/proc/kcore.c: linux/mm.h is included more than once.\n\nSigned-off-by: Jaswinder Singh Rajput \u003cjaswinderrajput@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": "c44972f1782124f945ec8bea8a78f30f1a3538bd", "tree": "f804afc972b794100547383b5ca8e1936a91c3aa", "parents": [ "b9b9df62e7fd6b5f099c24bc867100ab86e1da5a" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Thu Sep 24 14:47:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 17:11:24 2009 -0700" }, "message": "procfs: disable per-task stack usage on NOMMU\n\nIt needs walk_page_range().\n\nReported-by: Michal Simek \u003cmonstr@monstr.eu\u003e\nTested-by: Michal Simek \u003cmonstr@monstr.eu\u003e\nCc: Stefani Seibold \u003cstefani@seibold.net\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7ca263cdf8cf74d0f1c6f48d07d556de92e3bec9", "tree": "409ed34476208f714e0d4c529a642d8fd21feaa5", "parents": [ "a6b49cb210f878709bdc0bddc16a853f18790d02", "96830a57de1197519b62af6a4c9ceea556c18c3d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 09:04:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 09:04:24 2009 -0700" }, "message": "Merge branch \u0027cputime\u0027 of git://git390.marist.edu/pub/scm/linux-2.6\n\n* \u0027cputime\u0027 of git://git390.marist.edu/pub/scm/linux-2.6:\n [PATCH] Fix idle time field in /proc/uptime\n" }, { "commit": "db16826367fefcb0ddb93d76b66adc52eb4e6339", "tree": "626224c1eb1eb79c522714591f208b4fdbdcd9d4", "parents": [ "cd6045138ed1bb5d8773e940d51c34318eef3ef2", "465fdd97cbe16ef8727221857e96ef62dd352017" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:53:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:53:22 2009 -0700" }, "message": "Merge branch \u0027hwpoison\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6\n\n* \u0027hwpoison\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: (21 commits)\n HWPOISON: Enable error_remove_page on btrfs\n HWPOISON: Add simple debugfs interface to inject hwpoison on arbitary PFNs\n HWPOISON: Add madvise() based injector for hardware poisoned pages v4\n HWPOISON: Enable error_remove_page for NFS\n HWPOISON: Enable .remove_error_page for migration aware file systems\n HWPOISON: The high level memory error handler in the VM v7\n HWPOISON: Add PR_MCE_KILL prctl to control early kill behaviour per process\n HWPOISON: shmem: call set_page_dirty() with locked page\n HWPOISON: Define a new error_remove_page address space op for async truncation\n HWPOISON: Add invalidate_inode_page\n HWPOISON: Refactor truncate to allow direct truncating of page v2\n HWPOISON: check and isolate corrupted free pages v2\n HWPOISON: Handle hardware poisoned pages in try_to_unmap\n HWPOISON: Use bitmask/action code for try_to_unmap behaviour\n HWPOISON: x86: Add VM_FAULT_HWPOISON handling to x86 page fault handler v2\n HWPOISON: Add poison check to page fault handling\n HWPOISON: Add basic support for poisoned pages in fault handler v3\n HWPOISON: Add new SIGBUS error codes for hardware poison signals\n HWPOISON: Add support for poison swap entries v2\n HWPOISON: Export some rmap vma locking to outside world\n ...\n" }, { "commit": "8d65af789f3e2cf4cfbdbf71a0f7a61ebcd41d38", "tree": "121df3bfffc7853ac6d2c514ad514d4a748a0933", "parents": [ "c0d0787b6d47d9f4d5e8bd321921104e854a9135" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Sep 23 15:57:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:21:04 2009 -0700" }, "message": "sysctl: remove \"struct file *\" argument of -\u003eproc_handler\n\nIt\u0027s unused.\n\nIt isn\u0027t needed -- read or write flag is already passed and sysctl\nshouldn\u0027t care about the rest.\n\nIt _was_ used in two places at arch/frv for some reason.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "96830a57de1197519b62af6a4c9ceea556c18c3d", "tree": "fc92ae39a4d06e3fb2970e9fc5f6e7a46abf1df0", "parents": [ "94a8d5caba74211ec76dac80fc6e2d5c391530df" ], "author": { "name": "Michael Abbott", "email": "michael.abbott@diamond.ac.uk", "time": "Thu Sep 24 10:15:19 2009 +0200" }, "committer": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Thu Sep 24 10:16:24 2009 +0200" }, "message": "[PATCH] Fix idle time field in /proc/uptime\n\nGit commit 79741dd changes idle cputime accounting, but unfortunately\nthe /proc/uptime file hasn\u0027t caught up. Here the idle time calculation\nfrom /proc/stat is copied over.\n\nSigned-off-by: Michael Abbott \u003cmichael.abbott@diamond.ac.uk\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n" }, { "commit": "0d4c36a9b6ab6b15851f60956d901a3c53574ea8", "tree": "08ca4041ee0a3748835b34227868427b7a82467f", "parents": [ "678ad5d8aaf8925cb8465f84e1e47d9b1284666a" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "/proc/kcore: update stat.st_size after memory hotplug\n\nAfter memory hotplug (or other events in future), kcore size can be\nmodified.\n\nTo update inode-\u003ei_size, we have to know inode/dentry but we can\u0027t get it\nfrom inside /proc directly. But considerinyg memory hotplug, kcore image\nis updated only when it\u0027s opened. Then, updating inode-\u003ei_size at open()\nis enough.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "678ad5d8aaf8925cb8465f84e1e47d9b1284666a", "tree": "638189ae49da8da3dff9ba2f422f16a734b9388c", "parents": [ "90396f96b7da0e2305ffe0266d22b6f8221f28ba" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "/proc/kcore: fix stat.st_size\n\nPresently the size of /proc/kcore which can be read by \u0027ls -l\u0027 is 0. But\nit\u0027s not the correct value.\n\nOn x86-64, ls -l shows\n ... root root 140737486266368 2009-09-17 10:29 /proc/kcore\nThen, 7FFFFFFE02000. This comes from vmalloc area\u0027s size.\n(*) This shows \"core\" size, not memory size.\n\nThis patch shows the size by updating \"size\" field in struct\nproc_dir_entry. Later, lookup routine will create inode and fill\ninode-\u003ei_size based on this value. Then, this has a problem.\n\n - Once inode is cached, inode-\u003ei_size will never be updated.\n\nThen, this patch is not memory-hotplug-aware.\n\nTo update inode-\u003ei_size, we have to know dentry or inode.\nBut there is no way to lookup them by inside kernel. Hmmm....\nNext patch will try it.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "90396f96b7da0e2305ffe0266d22b6f8221f28ba", "tree": "8e609c30ef66e6f4753346043c1f31bf2855cedc", "parents": [ "81ac3ad9061dd9cd490ee92f0c5316a14d77ce18" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:50 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "kcore: more fixes for init\n\nproc_kcore_init() doesn\u0027t check NULL case. fix it and remove unnecessary\ncomments.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "81ac3ad9061dd9cd490ee92f0c5316a14d77ce18", "tree": "1787b8c307b5e70e2763c4e7c0767c2b7e108dc4", "parents": [ "26562c59fa9111ae3ea7b78045889662aac9e5ac" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "kcore: register module area in generic way\n\nSome archs define MODULED_VADDR/MODULES_END which is not in VMALLOC area.\nThis is handled only in x86-64. This patch make it more generic. And we\ncan use vread/vwrite to access the area. Fix it.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "26562c59fa9111ae3ea7b78045889662aac9e5ac", "tree": "fe231752dcc4db5967bd798dbd9749a516678e18", "parents": [ "3089aa1b0c07fb7c48f9829c619f50198307789d" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: register vmemmap range\n\nBenjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e pointed out that vmemmap\nrange is not included in KCORE_RAM, KCORE_VMALLOC ....\n\nThis adds KCORE_VMEMMAP if SPARSEMEM_VMEMMAP is used. By this, vmemmap\ncan be readable via /proc/kcore\n\nBecause it\u0027s not vmalloc area, vread/vwrite cannot be used. But the range\nis static against the memory layout, this patch handles vmemmap area by\nthe same scheme with physical memory.\n\nThis patch assumes SPARSEMEM_VMEMMAP range is not in VMALLOC range. It\u0027s\ncorrect now.\n\n[akpm@linux-foundation.org: fix typo]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.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": "3089aa1b0c07fb7c48f9829c619f50198307789d", "tree": "63677c773c559458ba301bd448ecce6e007b6742", "parents": [ "908eedc6168bd92e89f90d89fa389065a36358fa" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:48 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: use registerd physmem information\n\nFor /proc/kcore, each arch registers its memory range by kclist_add().\nIn usual,\n\n\t- range of physical memory\n\t- range of vmalloc area\n\t- text, etc...\n\nare registered but \"range of physical memory\" has some troubles. It\ndoesn\u0027t updated at memory hotplug and it tend to include unnecessary\nmemory holes. Now, /proc/iomem (kernel/resource.c) includes required\nphysical memory range information and it\u0027s properly updated at memory\nhotplug. Then, it\u0027s good to avoid using its own code(duplicating\ninformation) and to rebuild kclist for physical memory based on\n/proc/iomem.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: 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": "9492587cf35d370db33ef4b38375dfb35a105b61", "tree": "59daaf91e847d3c5cd6f542626da75db5814b06d", "parents": [ "a0614da88b67ffa3dbcc0d40b817e682c7c4a0ee" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: register text area in generic way\n\nSome 64bit arch has special segment for mapping kernel text. It should be\nentried to /proc/kcore in addtion to direct-linear-map, vmalloc area.\nThis patch unifies KCORE_TEXT entry scattered under x86 and ia64.\n\nI\u0027m not familiar with other archs (mips has its own even after this patch)\nbut range of [_stext ..._end) is a valid area of text and it\u0027s not in\ndirect-map area, defining CONFIG_ARCH_PROC_KCORE_TEXT is only a necessary\nthing to do.\n\nNote: I left mips as it is now.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "a0614da88b67ffa3dbcc0d40b817e682c7c4a0ee", "tree": "ae4ca3a8553592af41f7c2cc1a64912d934f6baf", "parents": [ "c30bb2a25fcfde6157e6154a32c14686fb0bedbe" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: register vmalloc area in generic way\n\nFor /proc/kcore, vmalloc areas are registered per arch. But, all of them\nregisters same range of [VMALLOC_START...VMALLOC_END) This patch unifies\nthem. By this. archs which have no kclist_add() hooks can see vmalloc\narea correctly.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "c30bb2a25fcfde6157e6154a32c14686fb0bedbe", "tree": "afa4811d46e5f9035a035b2c8c864bbb6c5af049", "parents": [ "2ef43ec772551e975a6ea7cf22b59c84955aadf9" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: add kclist types\n\nPresently, kclist_add() only eats start address and size as its arguments.\nConsidering to make kclist dynamically reconfigulable, it\u0027s necessary to\nknow which kclists are for System RAM and which are not.\n\nThis patch add kclist types as\n KCORE_RAM\n KCORE_VMALLOC\n KCORE_TEXT\n KCORE_OTHER\n\nThis \"type\" is used in a patch following this for detecting KCORE_RAM.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "2ef43ec772551e975a6ea7cf22b59c84955aadf9", "tree": "9560c13bcc6deb3ee00a60f93730b248029e69bb", "parents": [ "d899bf7b55f503ba7d3d07ed27c3a37e270fa7db" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: use usual list for kclist\n\nThis patchset is for /proc/kcore. With this,\n\n - many per-arch hooks are removed.\n\n - /proc/kcore will know really valid physical memory area.\n\n - /proc/kcore will be aware of memory hotplug.\n\n - /proc/kcore will be architecture independent i.e.\n if an arch supports CONFIG_MMU, it can use /proc/kcore.\n (if the arch uses usual memory layout.)\n\nThis patch:\n\n/proc/kcore uses its own list handling codes. It\u0027s better to use\ngeneric list codes.\n\nNo changes in logic. just clean up.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "d899bf7b55f503ba7d3d07ed27c3a37e270fa7db", "tree": "32a5ee7816b2f0cb3261dcca8102b9cafe9251bd", "parents": [ "cba8aafe1e07dfc8bae5ba78be8e02883bd34d31" ], "author": { "name": "Stefani Seibold", "email": "stefani@seibold.net", "time": "Tue Sep 22 16:45:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "procfs: provide stack information for threads\n\nA patch to give a better overview of the userland application stack usage,\nespecially for embedded linux.\n\nCurrently you are only able to dump the main process/thread stack usage\nwhich is showed in /proc/pid/status by the \"VmStk\" Value. But you get no\ninformation about the consumed stack memory of the the threads.\n\nThere is an enhancement in the /proc/\u003cpid\u003e/{task/*,}/*maps and which marks\nthe vm mapping where the thread stack pointer reside with \"[thread stack\nxxxxxxxx]\". xxxxxxxx is the maximum size of stack. This is a value\ninformation, because libpthread doesn\u0027t set the start of the stack to the\ntop of the mapped area, depending of the pthread usage.\n\nA sample output of /proc/\u003cpid\u003e/task/\u003ctid\u003e/maps looks like:\n\n08048000-08049000 r-xp 00000000 03:00 8312 /opt/z\n08049000-0804a000 rw-p 00001000 03:00 8312 /opt/z\n0804a000-0806b000 rw-p 00000000 00:00 0 [heap]\na7d12000-a7d13000 ---p 00000000 00:00 0\na7d13000-a7f13000 rw-p 00000000 00:00 0 [thread stack: 001ff4b4]\na7f13000-a7f14000 ---p 00000000 00:00 0\na7f14000-a7f36000 rw-p 00000000 00:00 0\na7f36000-a8069000 r-xp 00000000 03:00 4222 /lib/libc.so.6\na8069000-a806b000 r--p 00133000 03:00 4222 /lib/libc.so.6\na806b000-a806c000 rw-p 00135000 03:00 4222 /lib/libc.so.6\na806c000-a806f000 rw-p 00000000 00:00 0\na806f000-a8083000 r-xp 00000000 03:00 14462 /lib/libpthread.so.0\na8083000-a8084000 r--p 00013000 03:00 14462 /lib/libpthread.so.0\na8084000-a8085000 rw-p 00014000 03:00 14462 /lib/libpthread.so.0\na8085000-a8088000 rw-p 00000000 00:00 0\na8088000-a80a4000 r-xp 00000000 03:00 8317 /lib/ld-linux.so.2\na80a4000-a80a5000 r--p 0001b000 03:00 8317 /lib/ld-linux.so.2\na80a5000-a80a6000 rw-p 0001c000 03:00 8317 /lib/ld-linux.so.2\nafaf5000-afb0a000 rw-p 00000000 00:00 0 [stack]\nffffe000-fffff000 r-xp 00000000 00:00 0 [vdso]\n\nAlso there is a new entry \"stack usage\" in /proc/\u003cpid\u003e/{task/*,}/status\nwhich will you give the current stack usage in kb.\n\nA sample output of /proc/self/status looks like:\n\nName:\tcat\nState:\tR (running)\nTgid:\t507\nPid:\t507\n.\n.\n.\nCapBnd:\tfffffffffffffeff\nvoluntary_ctxt_switches:\t0\nnonvoluntary_ctxt_switches:\t0\nStack usage:\t12 kB\n\nI also fixed stack base address in /proc/\u003cpid\u003e/{task/*,}/stat to the base\naddress of the associated thread stack and not the one of the main\nprocess. This makes more sense.\n\n[akpm@linux-foundation.org: fs/proc/array.c now needs walk_page_range()]\nSigned-off-by: Stefani Seibold \u003cstefani@seibold.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\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": "cba8aafe1e07dfc8bae5ba78be8e02883bd34d31", "tree": "473586963e635921613db5e4ae8ac339ae497a18", "parents": [ "fb92a4b068be96799da3748c11cbd69760e44d7b" ], "author": { "name": "Vincent Li", "email": "macli@brc.ubc.ca", "time": "Tue Sep 22 16:45:38 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "fs/proc/base.c: fix proc_fault_inject_write() input sanity check\n\nRemove obfuscated zero-length input check and return -EINVAL instead of\n-EIO error to make the error message clear to user. Add whitespace\nstripping. No functionality changes.\n\nThe old code:\n\necho 1 \u003e /proc/pid/make-it-fail (ok)\necho 1foo \u003e /proc/pid/make-it-fail (-bash: echo: write error: Input/output error)\n\nThe new code:\n\necho 1 \u003e /proc/pid/make-it-fail (ok)\necho 1foo \u003e /proc/pid/make-it-fail (-bash: echo: write error: Invalid argument)\n\nThis patch is conservative in changes to not breaking existing\nscripts/applications.\n\nSigned-off-by: Vincent Li \u003cmacli@brc.ubc.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fb92a4b068be96799da3748c11cbd69760e44d7b", "tree": "da10040b94e5a0b83de42008c369aa7c3242c333", "parents": [ "acef82b873b6899d80e639317228f2104dae79a2" ], "author": { "name": "Vincent Li", "email": "macli@brc.ubc.ca", "time": "Tue Sep 22 16:45:36 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "fs/proc/task_mmu.c v1: fix clear_refs_write() input sanity check\n\nAndrew Morton pointed out similar string hacking and obfuscated check for\nzero-length input at the end of the function, David Rientjes suggested to\nuse strict_strtol to replace simple_strtol, this patch cover above\nsuggestions, add removing of leading and trailing whitespace from user\ninput. It does not change function behavious.\n\nSigned-off-by: Vincent Li \u003cmacli@brc.ubc.ca\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Amerigo Wang \u003cxiyou.wangcong@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": "acef82b873b6899d80e639317228f2104dae79a2", "tree": "840a9cdb4629f5be3f10d8f507e6785e447d8500", "parents": [ "9b4d1cbef8f41aff2b3e4ca31f566c071fe601de" ], "author": { "name": "Amerigo Wang", "email": "xiyou.wangcong@gmail.com", "time": "Tue Sep 22 16:45:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "kcore: fix /proc/kcore\u0027s stat.st_size\n\nIn 9063c61fd5cbd (\"x86, 64-bit: Clean up user address masking\") Linus\nfixed the wrong size of /proc/kcore problem.\n\nBut its size still looks insane, since it never equals the size of\nphysical memory.\n\nSigned-off-by: WANG Cong \u003camwang@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Tao Ma \u003ctao.ma@oracle.com\u003e\nCc: \u003cmtk.manpages@gmail.com\u003e\nAcked-by: 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": "9b4d1cbef8f41aff2b3e4ca31f566c071fe601de", "tree": "fc64d537b5142646d917ad928e3fb1df4caf4655", "parents": [ "cff4edb591c153a779a27a3fd8e7bc1217f2f6b8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Sep 22 16:45:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "proc_flush_task: flush /proc/tid/task/pid when a sub-thread exits\n\nThe exiting sub-thread flushes /proc/pid only, but this doesn\u0027t buy too\nmuch: ps and friends mostly use /proc/tid/task/pid.\n\nRemove \"if (thread_group_leader())\" checks from proc_flush_task() path,\nthis means we always remove /proc/tid/task/pid dentry on exit, and this\nactually matches the comment above proc_flush_task().\n\nThe test-case:\n\n\tstatic void* tfunc(void *arg)\n\t{\n\t\tchar name[256];\n\n\t\tsprintf(name, \"/proc/%d/task/%ld/status\", getpid(), gettid());\n\t\tclose(open(name, O_RDONLY));\n\n\t\treturn NULL;\n\t}\n\n\tint main(void)\n\t{\n\t\tpthread_t t;\n\n\t\tfor (;;) {\n\t\t\tif (!pthread_create(\u0026t, NULL, \u0026tfunc, NULL))\n\t\t\t\tpthread_join(t, NULL);\n\t\t}\n\t}\n\nslabtop shows that pid/proc_inode_cache/etc grow quickly and\n\"indefinitely\" until the task is killed or shrink_slab() is called, not\ngood. And the main thread needs a lot of time to exit.\n\nThe same can happen if something like \"ps -efL\" runs continuously, while\nsome application spawns short-living threads.\n\nReported-by: \"James M. Leddy\" \u003cjleddy@redhat.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dominic Duval \u003cdduval@redhat.com\u003e\nCc: Frank Hirtz \u003cfhirtz@redhat.com\u003e\nCc: \"Fuller, Johnray\" \u003cJohnray.Fuller@gs.com\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Paul Batkowski \u003cpbatkowski@redhat.com\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": "cff4edb591c153a779a27a3fd8e7bc1217f2f6b8", "tree": "664f2a20cd0ae38ef06a2f8cc59e5ffca13e5d8b", "parents": [ "27f6cb160b71b342b7a47d28a4b6c422ea74ccd1" ], "author": { "name": "Kees Cook", "email": "kees.cook@canonical.com", "time": "Tue Sep 22 16:45:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "proc: fix reported unit for RLIMIT_CPU\n\n/proc/$pid/limits should show RLIMIT_CPU as seconds, which is the unit\nused in kernel/posix-cpu-timers.c:\n\n unsigned long psecs \u003d cputime_to_secs(ptime);\n ...\n if (psecs \u003e\u003d sig-\u003erlim[RLIMIT_CPU].rlim_max) {\n ...\n __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);\n\nSigned-off-by: Kees Cook \u003ckees.cook@canonical.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nAcked-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88e9d34c727883d7d6f02cf1475b3ec98b8480c7", "tree": "475f544536d52739e0929e7727cab5124e855a06", "parents": [ "b7ed698cc9d556306a4088c238e2ea9311ea2cb3" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Sep 22 16:43:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "seq_file: constify seq_operations\n\nMake all seq_operations structs const, to help mitigate against\nrevectoring user-triggerable function pointers.\n\nThis is derived from the grsecurity patch, although generated from scratch\nbecause it\u0027s simpler than extracting the changes from there.\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5d863b89688e5811cd9e5bd0082cb38abe03adf3", "tree": "6041584a854fc70cd497843f134e2cf983741230", "parents": [ "8c5cd6f3a1721085652da204d454af4f8b92eda2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: fix oom_adjust_write() input sanity check\n\nAndrew Morton pointed out oom_adjust_write() has very strange EIO\nand new line handling. this patch fixes it.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "495789a51a91cb8c015d8d77fecbac1caf20b186", "tree": "ac2a71ed40ed84f5673326aa6bf7f278b54d989a", "parents": [ "28b83c5193e7ab951e402252278f2cc79dc4d298" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: make oom_score to per-process value\n\noom-killer kills a process, not task. Then oom_score should be calculated\nas per-process too. it makes consistency more and makes speed up\nselect_bad_process().\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "28b83c5193e7ab951e402252278f2cc79dc4d298", "tree": "10080e8d3957c2a03f8419ab44c9ecb0ffcdaee0", "parents": [ "f168e1b6390e2d79cf57e48e6ae6d9b0a9e2851a" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: move oom_adj value from task_struct to signal_struct\n\nCurrently, OOM logic callflow is here.\n\n __out_of_memory()\n select_bad_process() for each task\n badness() calculate badness of one task\n oom_kill_process() search child\n oom_kill_task() kill target task and mm shared tasks with it\n\nexample, process-A have two thread, thread-A and thread-B and it have very\nfat memory and each thread have following oom_adj and oom_score.\n\n thread-A: oom_adj \u003d OOM_DISABLE, oom_score \u003d 0\n thread-B: oom_adj \u003d 0, oom_score \u003d very-high\n\nThen, select_bad_process() select thread-B, but oom_kill_task() refuse\nkill the task because thread-A have OOM_DISABLE. Thus __out_of_memory()\ncall select_bad_process() again. but select_bad_process() select the same\ntask. It mean kernel fall in livelock.\n\nThe fact is, select_bad_process() must select killable task. otherwise\nOOM logic go into livelock.\n\nAnd root cause is, oom_adj shouldn\u0027t be per-thread value. it should be\nper-process value because OOM-killer kill a process, not thread. Thus\nThis patch moves oomkilladj (now more appropriately named oom_adj) from\nstruct task_struct to struct signal_struct. it naturally prevent\nselect_bad_process() choose wrong task.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "73d7c33e81aed92ac185950a20407c1a2ea65a83", "tree": "e178b87c69034a6487db9bdfbf7ffc932056002f", "parents": [ "d0107eb07320b5d37c0f8a9f015534caebb28a48" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Mon Sep 21 17:02:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:34 2009 -0700" }, "message": "kcore: /proc/kcore should use vread\n\n/proc/kcore has its own routine to access vmallc area. It can be replaced\nwith vread(). And by this, /proc/kcore can do safe access to vmalloc\narea.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: Mike Smith \u003cscgtrp@gmail.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "398499d5f3613c47f2143b8c54a04efb5d7a6da9", "tree": "0b337ca1d0e20caa2295c159d5c0deadf362e4a0", "parents": [ "7103ad323b1ae32bedc3267402117e2f8b45e48d" ], "author": { "name": "Moussa A. Ba", "email": "moussa.a.ba@gmail.com", "time": "Mon Sep 21 17:02:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:33 2009 -0700" }, "message": "pagemap clear_refs: modify to specify anon or mapped vma clearing\n\nThe patch makes the clear_refs more versatile in adding the option to\nselect anonymous pages or file backed pages for clearing. This addition\nhas a measurable impact on user space application performance as it\ndecreases the number of pagewalks in scenarios where one is only\ninterested in a specific type of page (anonymous or file mapped).\n\nThe patch adds anonymous and file backed filters to the clear_refs interface.\n\necho 1 \u003e /proc/PID/clear_refs resets the bits on all pages\necho 2 \u003e /proc/PID/clear_refs resets the bits on anonymous pages only\necho 3 \u003e /proc/PID/clear_refs resets the bits on file backed pages only\n\nAny other value is ignored\n\nSigned-off-by: Moussa A. Ba \u003cmoussa.a.ba@gmail.com\u003e\nSigned-off-by: Jared E. Hulbert \u003cjaredeh@gmail.com\u003e\nAcked-by: 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": "9a840895147b12de5cdd633c600b38686840ee53", "tree": "a266a69a39decb4ec0364ac331f0ab19b6f09f06", "parents": [ "21333b2b66b805a360641568588e5a0bb06d9d1f" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:02:01 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:31 2009 -0700" }, "message": "ksm: identify PageKsm pages\n\nKSM will need to identify its kernel merged pages unambiguously, and\n/proc/kpageflags will probably like to do so too.\n\nSince KSM will only be substituting anonymous pages, statistics are best\npreserved by making a PageKsm page a special PageAnon page: one with no\nanon_vma.\n\nBut KSM then needs its own page_add_ksm_rmap() - keep it in ksm.h near\nPageKsm; and do_wp_page() must COW them, unlike singly mapped PageAnons.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Chris Wright \u003cchrisw@redhat.com\u003e\nSigned-off-by: Izik Eidus \u003cieidus@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4b02108ac1b3354a22b0d83c684797692efdc395", "tree": "9f65d6e8e35ddce940e7b9da6305cf5a19e5904e", "parents": [ "c6a7f5728a1db45d30df55a01adc130b4ab0327c" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:01:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:27 2009 -0700" }, "message": "mm: oom analysis: add shmem vmstat\n\nRecently we encountered OOM problems due to memory use of the GEM cache.\nGenerally a large amuont of Shmem/Tmpfs pages tend to create a memory\nshortage problem.\n\nWe often use the following calculation to determine the amount of shmem\npages:\n\nshmem \u003d NR_ACTIVE_ANON + NR_INACTIVE_ANON - NR_ANON_PAGES\n\nhowever the expression does not consider isolated and mlocked pages.\n\nThis patch adds explicit accounting for pages used by shmem and tmpfs.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nAcked-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c6a7f5728a1db45d30df55a01adc130b4ab0327c", "tree": "36649bc6ebb959841a5097c699968722cfd99c4d", "parents": [ "71de1ccbe1fb40203edd3beb473f8580d917d2ca" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:01:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:27 2009 -0700" }, "message": "mm: oom analysis: Show kernel stack usage in /proc/meminfo and OOM log output\n\nThe amount of memory allocated to kernel stacks can become significant and\ncause OOM conditions. However, we do not display the amount of memory\nconsumed by stacks.\n\nAdd code to display the amount of memory used for stacks in /proc/meminfo.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: Rik van Riel \u003criel@redhat.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": "d01d4827858cdc2e1c437c87ab65ec0a00fd40f8", "tree": "433ed8bfdf144887129e9b0ea625c99780bedfd6", "parents": [ "0d721ceadbeaa24d7f9dd41b3e5e29912327a7e1" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Mon Sep 21 11:06:27 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 11:37:27 2009 +0200" }, "message": "sched: Always show Cpus_allowed field in /proc/\u003cpid\u003e/status\n\nThe Cpus_allowed fields in /proc/\u003cpid\u003e/status is currently only\nshown in case of CONFIG_CPUSETS. However their contents are also\nuseful for the !CONFIG_CPUSETS case.\n\nSo change the current behaviour and always show these fields.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090921090627.GD4649@osiris.boeblingen.de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6a46079cf57a7f7758e8b926980a4f852f89b34d", "tree": "efd72e830201370d6273bd436dda5a3c4cd6ed9b", "parents": [ "4db96cf077aa938b11fe7ac79ecc9b29ec00fbab" ], "author": { "name": "Andi Kleen", "email": "andi@firstfloor.org", "time": "Wed Sep 16 11:50:15 2009 +0200" }, "committer": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Wed Sep 16 11:50:15 2009 +0200" }, "message": "HWPOISON: The high level memory error handler in the VM v7\n\nAdd the high level memory handler that poisons pages\nthat got corrupted by hardware (typically by a two bit flip in a DIMM\nor a cache) on the Linux level. The goal is to prevent everyone\nfrom accessing these pages in the future.\n\nThis done at the VM level by marking a page hwpoisoned\nand doing the appropriate action based on the type of page\nit is.\n\nThe code that does this is portable and lives in mm/memory-failure.c\n\nTo quote the overview comment:\n\nHigh level machine check handler. Handles pages reported by the\nhardware as being corrupted usually due to a 2bit ECC memory or cache\nfailure.\n\nThis focuses on pages detected as corrupted in the background.\nWhen the current CPU tries to consume corruption the currently\nrunning process can just be killed directly instead. This implies\nthat if the error cannot be handled for some reason it\u0027s safe to\njust ignore it because no corruption has been consumed yet. Instead\nwhen that happens another machine check will happen.\n\nHandles page cache pages in various states. The tricky part\nhere is that we can access any page asynchronous to other VM\nusers, because memory failures could happen anytime and anywhere,\npossibly violating some of their assumptions. This is why this code\nhas to be extremely careful. Generally it tries to use normal locking\nrules, as in get the standard locks, even if that means the\nerror handling takes potentially a long time.\n\nSome of the operations here are somewhat inefficient and have non\nlinear algorithmic complexity, because the data structures have not\nbeen optimized for this case. This is in particular the case\nfor the mapping from a vma to a process. Since this case is expected\nto be rare we hope we can get away with this.\n\nThere are in principle two strategies to kill processes on poison:\n- just unmap the data and wait for an actual reference before\nkilling\n- kill as soon as corruption is detected.\nBoth have advantages and disadvantages and should be used\nin different situations. Right now both are implemented and can\nbe switched with a new sysctl vm.memory_failure_early_kill\nThe default is early kill.\n\nThe patch does some rmap data structure walking on its own to collect\nprocesses to kill. This is unusual because normally all rmap data structure\nknowledge is in rmap.c only. I put it here for now to keep\neverything together and rmap knowledge has been seeping out anyways\n\nIncludes contributions from Johannes Weiner, Chris Mason, Fengguang Wu,\nNick Piggin (who did a lot of great work) and others.\n\nCc: npiggin@suse.de\nCc: riel@redhat.com\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nReviewed-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\n" }, { "commit": "0753ba01e126020bf0f8150934903b48935b697d", "tree": "fbfd7e2d0abbe724a8c5e0e17fb9af522ed2e097", "parents": [ "89a4eb4b66e8f4d395e14a14d262dac4d6ca52f0" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Tue Aug 18 14:11:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 18 16:31:13 2009 -0700" }, "message": "mm: revert \"oom: move oom_adj value\"\n\nThe commit 2ff05b2b (oom: move oom_adj value) moveed the oom_adj value to\nthe mm_struct. It was a very good first step for sanitize OOM.\n\nHowever Paul Menage reported the commit makes regression to his job\nscheduler. Current OOM logic can kill OOM_DISABLED process.\n\nWhy? His program has the code of similar to the following.\n\n\t...\n\tset_oom_adj(OOM_DISABLE); /* The job scheduler never killed by oom */\n\t...\n\tif (vfork() \u003d\u003d 0) {\n\t\tset_oom_adj(0); /* Invoked child can be killed */\n\t\texecve(\"foo-bar-cmd\");\n\t}\n\t....\n\nvfork() parent and child are shared the same mm_struct. then above\nset_oom_adj(0) doesn\u0027t only change oom_adj for vfork() child, it\u0027s also\nchange oom_adj for vfork() parent. Then, vfork() parent (job scheduler)\nlost OOM immune and it was killed.\n\nActually, fork-setting-exec idiom is very frequently used in userland program.\nWe must not break this assumption.\n\nThen, this patch revert commit 2ff05b2b and related commit.\n\nReverted commit list\n---------------------\n- commit 2ff05b2b4e (oom: move oom_adj value from task_struct to mm_struct)\n- commit 4d8b9135c3 (oom: avoid unnecessary mm locking and scanning for OOM_DISABLE)\n- commit 8123681022 (oom: only oom kill exiting tasks with attached memory)\n- commit 933b787b57 (mm: copy over oom_adj value at fork time)\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "704b836cbf19e885f8366bccb2e4b0474346c02d", "tree": "d0513d3ef70e1b875cd7786f94150ba2428b6a88", "parents": [ "00f89d218523b9bf6b522349c039d5ac80aa536d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri Jul 10 03:27:40 2009 +0200" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Aug 10 20:49:26 2009 +1000" }, "message": "mm_for_maps: take -\u003ecred_guard_mutex to fix the race with exec\n\nThe problem is minor, but without -\u003ecred_guard_mutex held we can race\nwith exec() and get the new -\u003emm but check old creds.\n\nNow we do not need to re-check task-\u003emm after ptrace_may_access(), it\ncan\u0027t be changed to the new mm under us.\n\nStrictly speaking, this also fixes another very minor problem. Unless\nsecurity check fails or the task exits mm_for_maps() should never\nreturn NULL, the caller should get either old or new -\u003emm.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "00f89d218523b9bf6b522349c039d5ac80aa536d", "tree": "cde7a8bde2798e4fb3ae28756f6cedd4db9191cc", "parents": [ "13f0feafa6b8aead57a2a328e2fca6a5828bf286" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri Jul 10 03:27:38 2009 +0200" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Aug 10 20:48:32 2009 +1000" }, "message": "mm_for_maps: shift down_read(mmap_sem) to the caller\n\nmm_for_maps() takes -\u003emmap_sem after security checks, this looks\nstrange and obfuscates the locking rules. Move this lock to its\nsingle caller, m_start().\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "13f0feafa6b8aead57a2a328e2fca6a5828bf286", "tree": "fb396118339319406daf7f6782782eaef31b3b53", "parents": [ "f4b9a988685da6386d7f9a72df3098bcc3270526" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Jun 23 21:25:32 2009 +0200" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Aug 10 20:47:42 2009 +1000" }, "message": "mm_for_maps: simplify, use ptrace_may_access()\n\nIt would be nice to kill __ptrace_may_access(). It requires task_lock(),\nbut this lock is only needed to read mm-\u003eflags in the middle.\n\nConvert mm_for_maps() to use ptrace_may_access(), this also simplifies\nthe code a little bit.\n\nAlso, we do not need to take -\u003emmap_sem in advance. In fact I think\nmm_for_maps() should not play with -\u003emmap_sem at all, the caller should\ntake this lock.\n\nWith or without this patch, without -\u003ecred_guard_mutex held we can race\nwith exec() and get the new -\u003emm but check old creds.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nReviewed-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "2f6d311080c36e30a5fa87adca550dc6b51dbfdc", "tree": "7ee0a11c33b538cb978848aeb7d46bb16df129b9", "parents": [ "bcac2b1b7d67f4e7c001b755409fafb37cb0d888" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Wed Jun 17 16:26:00 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 18 13:03:41 2009 -0700" }, "message": "proc: vmcore - use kzalloc in get_new_element()\n\nInstead of kmalloc+memset better use straight kzalloc\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nReviewed-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@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": "bcac2b1b7d67f4e7c001b755409fafb37cb0d888", "tree": "5b69b8e5f1321a602a522b49f676bca54c0cb565", "parents": [ "3fe4a975d662f11037cb710f8b4b158a3e38f9c0" ], "author": { "name": "Michal Simek", "email": "monstr@monstr.eu", "time": "Wed Jun 17 16:25:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 18 13:03:41 2009 -0700" }, "message": "procfs: remove sparse errors in proc_devtree.c\n\nCHECK fs/proc/proc_devtree.c\nfs/proc/proc_devtree.c:197:14: warning: Using plain integer as NULL pointer\nfs/proc/proc_devtree.c:203:34: warning: Using plain integer as NULL pointer\nfs/proc/proc_devtree.c:210:14: warning: Using plain integer as NULL pointer\nfs/proc/proc_devtree.c:223:26: warning: Using plain integer as NULL pointer\nfs/proc/proc_devtree.c:226:14: warning: Using plain integer as NULL pointer\n\nSigned-off-by: Michal Simek \u003cmonstr@monstr.eu\u003e\nCc: Alexey Dobriyan \u003cadobriyan@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": "d3d64df21d3d0de675a0d3ffa7c10514f3644b30", "tree": "7ea3c79d8adb2c0282327f9ce63208978857eb07", "parents": [ "9d9b8fb0e5ebf4b0398e579f6061d4451fea3242" ], "author": { "name": "Keika Kobayashi", "email": "kobayashi.kk@ncos.nec.co.jp", "time": "Wed Jun 17 16:25:55 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 18 13:03:41 2009 -0700" }, "message": "proc: export statistics for softirq to /proc\n\nExport statistics for softirq in /proc/softirqs and /proc/stat.\n\n1. /proc/softirqs\nImplement /proc/softirqs which shows the number of softirq\nfor each CPU like /proc/interrupts.\n\n2. /proc/stat\nAdd the \"softirq\" line to /proc/stat.\nThis line shows the number of softirq for all cpu.\nThe first column is the total of all softirqs and\neach subsequent column is the total for particular softirq.\n\n[kosaki.motohiro@jp.fujitsu.com: remove redundant for_each_possible_cpu() loop]\nSigned-off-by: Keika Kobayashi \u003ckobayashi.kk@ncos.nec.co.jp\u003e\nReviewed-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@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": "2ff05b2b4eac2e63d345fc731ea151a060247f53", "tree": "1840bc2d3b381eca5d39869499339b0fcc6eabbf", "parents": [ "c9e444103b5e7a5a3519f9913f59767f92e33baf" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Tue Jun 16 15:32:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 16 19:47:43 2009 -0700" }, "message": "oom: move oom_adj value from task_struct to mm_struct\n\nThe per-task oom_adj value is a characteristic of its mm more than the\ntask itself since it\u0027s not possible to oom kill any thread that shares the\nmm. If a task were to be killed while attached to an mm that could not be\nfreed because another thread were set to OOM_DISABLE, it would have\nneedlessly been terminated since there is no potential for future memory\nfreeing.\n\nThis patch moves oomkilladj (now more appropriately named oom_adj) from\nstruct task_struct to struct mm_struct. This requires task_lock() on a\ntask to check its oom_adj value to protect against exec, but it\u0027s already\nnecessary to take the lock when dereferencing the mm to find the total VM\nsize for the badness heuristic.\n\nThis fixes a livelock if the oom killer chooses a task and another thread\nsharing the same memory has an oom_adj value of OOM_DISABLE. This occurs\nbecause oom_kill_task() repeatedly returns 1 and refuses to kill the\nchosen task while select_bad_process() will repeatedly choose the same\ntask during the next retry.\n\nTaking task_lock() in select_bad_process() to check for OOM_DISABLE and in\noom_kill_task() to check for threads sharing the same memory will be\nremoved in the next patch in this series where it will no longer be\nnecessary.\n\nWriting to /proc/pid/oom_adj for a kthread will now return -EINVAL since\nthese threads are immune from oom killing already. They simply report an\noom_adj value of OOM_DISABLE.\n\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: 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": "6837765963f1723e80ca97b1fae660f3a60d77df", "tree": "a9a6ed4b7e3bf188966da78b04bf39298f24375a", "parents": [ "bce7394a3ef82b8477952fbab838e4a6e8cb47d2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Tue Jun 16 15:32:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 16 19:47:42 2009 -0700" }, "message": "mm: remove CONFIG_UNEVICTABLE_LRU config option\n\nCurrently, nobody wants to turn UNEVICTABLE_LRU off. Thus this\nconfigurability is unnecessary.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nAcked-by: Minchan Kim \u003cminchan.kim@gmail.com\u003e\nCc: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "177975495914efb372f7edee28ba9a0fdb754149", "tree": "d26a09871ee7b250a5c96e323cc4d5245e35eeff", "parents": [ "ed7ce0f1022942301776f93159c981b09382ddea" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Tue Jun 16 15:32:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 16 19:47:38 2009 -0700" }, "message": "proc: export more page flags in /proc/kpageflags\n\nExport all page flags faithfully in /proc/kpageflags.\n\n\t11. KPF_MMAP\t\t(pseudo flag) memory mapped page\n\t12. KPF_ANON\t\t(pseudo flag) memory mapped page (anonymous)\n\t13. KPF_SWAPCACHE\tpage is in swap cache\n\t14. KPF_SWAPBACKED\tpage is swap/RAM backed\n\t15. KPF_COMPOUND_HEAD\t(*)\n\t16. KPF_COMPOUND_TAIL\t(*)\n\t17. KPF_HUGE\t\thugeTLB pages\n\t18. KPF_UNEVICTABLE\tpage is in the unevictable LRU list\n\t19. KPF_HWPOISON(TBD)\thardware detected corruption\n\t20. KPF_NOPAGE\t\t(pseudo flag) no page frame at the address\n\t32-39.\t\t\tmore obscure flags for kernel developers\n\n\t(*) For compound pages, exporting _both_ head/tail info enables\n\t users to tell where a compound page starts/ends, and its order.\n\nThe accompanying page-types tool will handle the details like decoupling\noverloaded flags and hiding obscure flags to normal users.\n\nThanks to KOSAKI and Andi for their valuable recommendations!\n\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.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" } ], "next": "ed7ce0f1022942301776f93159c981b09382ddea" }