)]}' { "log": [ { "commit": "73d3646029138743989b6c213628484301a72eb1", "tree": "1df20844702dbf7d8d014ae08bdb479a8350533f", "parents": [ "b3ac022cb9dc5883505a88b159d1b240ad1ef405" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Wed May 26 14:43:25 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "proc: cleanup: remove unused assignments\n\nI removed 3 unused assignments. The first two get reset on the first\nstatement of their functions. For \"err\" in root.c we don\u0027t return an\nerror and we don\u0027t use the variable again.\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.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": "7e49827cc937a742ae02078b483e3eb78f791a2a", "tree": "0f3e0a8483a41b2221c74b8286b2349af03dab04", "parents": [ "6e1be45aa6ba6a36c0312f65ecf311135c73001d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed May 26 14:43:22 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu May 27 09:12:47 2010 -0700" }, "message": "proc: get_nr_threads() doesn\u0027t need -\u003esiglock any longer\n\nNow that task-\u003esignal can\u0027t go away get_nr_threads() doesn\u0027t need\n-\u003esiglock to read signal-\u003ecount.\n\nAlso, make it inline, move into sched.h, and convert 2 other proc users of\nsignal-\u003ecount to use this (now trivial) helper.\n\nHenceforth get_nr_threads() is the only valid user of signal-\u003ecount, we\nare ready to turn it into \"int nr_threads\" or, perhaps, kill it.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "98c89cdd3a292af3451e47a2a33132f5183861b0", "tree": "cfad77bcfd2d04fb0b9326a859803a1ab90b0757", "parents": [ "164d44fd92e79d5bce54d0d62df9f856f7b23925", "99df95a22f7cfcf85405d4edc07c2d953542f0dd" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 19 17:23:28 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed May 19 17:23:28 2010 -0700" }, "message": "Merge branch \u0027bkl/procfs\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing\n\n* \u0027bkl/procfs\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing:\n sunrpc: Include missing smp_lock.h\n procfs: Kill the bkl in ioctl\n procfs: Push down the bkl from ioctl\n procfs: Use generic_file_llseek in /proc/vmcore\n procfs: Use generic_file_llseek in /proc/kmsg\n procfs: Use generic_file_llseek in /proc/kcore\n procfs: Kill BKL in llseek on proc base\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": "87df842410ce5a86fdca9fbec0dba80d2aa88b6f", "tree": "e8d311184e8f2695a961935882ad5269724fce04", "parents": [ "2eaa9cfdf33b8d7fb7aff27792192e0019ae8fc6" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Wed Mar 17 23:06:02 2010 +0100" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Apr 09 16:29:12 2010 +0200" }, "message": "procfs: Kill BKL in llseek on proc base\n\nWe don\u0027t use the BKL elsewhere, so use generic_file_llseek\nso we can avoid default_llseek taking the BKL.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\n[restore proc_fdinfo_file_operations as non-seekable]\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: John Kacur \u003cjkacur@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Al Viro \u003cviro@ZenIV.linux.org.uk\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": "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": "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": "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": "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": "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": "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": "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": "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": "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": "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": "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": "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": "0b4ec6e4e01d98e55ae325a41304cccd87fa4c0f", "tree": "1e075fdf4aaf0c5c003564b3f3414bb4a92ef2ed", "parents": [ "04288f42033607099cebf5ca15ce8dcec3a9688b", "3af968e066d593bc4dacc021715f3e95ddf0996f" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Jun 09 09:27:53 2009 +1000" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Jun 09 09:27:53 2009 +1000" }, "message": "Merge branch \u0027master\u0027 into next\n" }, { "commit": "bd6daba909d8484bd2ccf6017db4028d7a420927", "tree": "e5c5fa2ddb9b3658a24c15ca4050c71f68dc634f", "parents": [ "b2e1feaf0af6b8a826b86748a19ddc2013ab7dbd" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Thu May 28 14:34:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri May 29 08:40:02 2009 -0700" }, "message": "procfs: make errno values consistent when open pident vs exit(2) race occurs\n\nproc_pident_instantiate() has following call flow.\n\nproc_pident_lookup()\n proc_pident_instantiate()\n proc_pid_make_inode()\n\nAnd, proc_pident_lookup() has following error handling.\n\n\tconst struct pid_entry *p, *last;\n\terror \u003d ERR_PTR(-ENOENT);\n\tif (!task)\n\t\tgoto out_no_task;\n\nThen, proc_pident_instantiate should return ENOENT too when racing against\nexit(2) occur.\n\nEINAL has two bad reason.\n - it implies caller is wrong. bad the race isn\u0027t caller\u0027s mistake.\n - man 2 open don\u0027t explain EINVAL. user often don\u0027t handle it.\n\nNote: Other proc_pid_make_inode() caller already use ENOENT properly.\n\nAcked-by: Eric W. Biederman \u003cebiederm@xmission.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": "107db7c7dd137aeb7361b8c2606ac936c0be58ff", "tree": "7e8e024bbed52ac111a0b2ac878da1a95752c28b", "parents": [ "5e751e992f3fb08ba35e1ca8095ec8fbf9eda523" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri May 08 13:55:27 2009 +0100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon May 11 08:15:39 2009 +1000" }, "message": "CRED: Guard the setprocattr security hook against ptrace\n\nGuard the setprocattr security hook against ptrace by taking the target task\u0027s\ncred_guard_mutex around it. The problem is that setprocattr() may otherwise\nnote the lack of a debugger, and then perform an action on that basis whilst\nletting a debugger attach between the two points. Holding cred_guard_mutex\nacross the test and the action prevents ptrace_attach() from doing that.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "f83ce3e6b02d5e48b3a43b001390e2b58820389d", "tree": "71c57abf4f9d259f5bfa22deaf724db85738f862", "parents": [ "7fdf523067666b0eaff330f362401ee50ce187c4" ], "author": { "name": "Jake Edge", "email": "jake@lwn.net", "time": "Mon May 04 12:51:14 2009 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 04 15:14:23 2009 -0700" }, "message": "proc: avoid information leaks to non-privileged processes\n\nBy using the same test as is used for /proc/pid/maps and /proc/pid/smaps,\nonly allow processes that can ptrace() a given process to see information\nthat might be used to bypass address space layout randomization (ASLR).\nThese include eip, esp, wchan, and start_stack in /proc/pid/stat as well\nas the non-symbolic output from /proc/pid/wchan.\n\nASLR can be bypassed by sampling eip as shown by the proof-of-concept\ncode at http://code.google.com/p/fuzzyaslr/ As part of a presentation\n(http://www.cr0.org/paper/to-jt-linux-alsr-leak.pdf) esp and wchan were\nalso noted as possibly usable information leaks as well. The\nstart_stack address also leaks potentially useful information.\n\nCc: Stable Team \u003cstable@kernel.org\u003e\nSigned-off-by: Jake Edge \u003cjake@lwn.net\u003e\nAcked-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "31b07093c44a7a442394d44423e21d783f5523b8", "tree": "8569f8450dd2e7560a36a751faeee8d402c031ca", "parents": [ "1af3557abdef34ee036a6de4cb79e24468544b8d" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Thu Apr 09 13:57:59 2009 +0900" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Thu Apr 16 16:17:10 2009 -0700" }, "message": "proc: mounts_poll() make consistent to mdstat_poll\n\nIn recently sysfs_poll discussion, Neil Brown pointed out /proc/mounts\nalso should be fixed.\n\nSUSv3 says \"Regular files shall always poll TRUE for reading and\nwriting\". see\nhttp://www.opengroup.org/onlinepubs/009695399/functions/poll.html\n\nThen, mounts_poll()\u0027s default should be \"POLLIN | POLLRDNORM\". it mean\nalways readable.\n\nIn addition, event trigger should use \"POLLERR | POLLPRI\" instead\nPOLLERR. it makes consistent to mdstat_poll() and sysfs_poll(). and,\nselect(2) can handle POLLPRI easily.\n\n\nReported-by: Neil Brown \u003cneilb@suse.de\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Ram Pai \u003clinuxram@us.ibm.com\u003e\nCc: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "5ad4e53bd5406ee214ddc5a41f03f779b8b2d526", "tree": "b3dab5140284b3edf02bf2b13f74bfddb25aa62a", "parents": [ "ce3b0f8d5c2203301fc87f3aaaed73e5819e2a48" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sun Mar 29 19:50:06 2009 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Mar 31 23:00:27 2009 -0400" }, "message": "Get rid of indirect include of fs_struct.h\n\nDon\u0027t pull it in sched.h; very few files actually need it and those\ncan include directly. sched.h itself only needs forward declaration\nof struct fs_struct;\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7c2c7d993044cddc5010f6f429b100c63bc7dffb", "tree": "b92a6daf7c11f9a53de6fed07512fe02cd5b4a68", "parents": [ "e426b64c412aaa3e9eb3e4b261dc5be0d5a83e78" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Mar 28 23:21:27 2009 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Mar 28 17:30:00 2009 -0700" }, "message": "fix setuid sometimes wouldn\u0027t\n\ncheck_unsafe_exec() also notes whether the fs_struct is being\nshared by more threads than will get killed by the exec, and if so\nsets LSM_UNSAFE_SHARE to make bprm_set_creds() careful about euid.\nBut /proc/\u003cpid\u003e/cwd and /proc/\u003cpid\u003e/root lookups make transient\nuse of get_fs_struct(), which also raises that sharing count.\n\nThis might occasionally cause a setuid program not to change euid,\nin the same way as happened with files-\u003ecount (check_unsafe_exec\nalso looks at sighand-\u003ecount, but /proc doesn\u0027t raise that one).\n\nWe\u0027d prefer exec not to unshare fs_struct: so fix this in procfs,\nreplacing get_fs_struct() by get_fs_path(), which does path_get\nwhile still holding task_lock, instead of raising fs-\u003ecount.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: stable@kernel.org\n___\n\n fs/proc/base.c | 50 +++++++++++++++--------------------------------\n 1 file changed, 16 insertions(+), 34 deletions(-)\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d72f71eb0edd629c95715aa7305b0259d3581e34", "tree": "f7f96de5c94ffae797b9b8e41939c8bdeb0ecb81", "parents": [ "5a3fd05a9bb2f104020fbfc4551ad4aaed4660a4" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Feb 20 05:58:47 2009 +0000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Mar 27 14:44:01 2009 -0400" }, "message": "constify dentry_operations: procfs\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "ee568b25ee9e160b32d1aef73d8b2ee9c05d34db", "tree": "a29f070d82e6f787570213161c4c46c16ca6ef8a", "parents": [ "30390880debce4a68fd23e87a787f27609e4bf4a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Mar 17 10:02:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Mar 17 10:02:35 2009 -0700" }, "message": "Avoid 64-bit \"switch()\" statements on 32-bit architectures\n\nCommit ee6f779b9e0851e2f7da292a9f58e0095edf615a (\"filp-\u003ef_pos not\ncorrectly updated in proc_task_readdir\") changed the proc code to use\nfilp-\u003ef_pos directly, rather than through a temporary variable. In the\nprocess, that caused the operations to be done on the full 64 bits, even\nthough the offset is never that big.\n\nThat\u0027s all fine and dandy per se, but for some unfathomable reason gcc\ngenerates absolutely horrid code when using 64-bit values in switch()\nstatements. To the point of actually calling out to gcc helper\nfunctions like __cmpdi2 rather than just doing the trivial comparisons\ndirectly the way gcc does for normal compares. At which point we get\nlink failures, because we really don\u0027t want to support that kind of\ncrazy code.\n\nFix this by just casting the f_pos value to \"unsigned long\", which\nis plenty big enough for /proc, and avoids the gcc code generation issue.\n\nReported-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Zhang Le \u003cr0bertz@gentoo.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ee6f779b9e0851e2f7da292a9f58e0095edf615a", "tree": "71aa57da0fea292c50b12d9ef73373fcd940162e", "parents": [ "5bee17f18b595937e6beafeee5197868a3f74a06" ], "author": { "name": "Zhang Le", "email": "r0bertz@gentoo.org", "time": "Mon Mar 16 14:44:31 2009 +0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 16 07:51:33 2009 -0700" }, "message": "filp-\u003ef_pos not correctly updated in proc_task_readdir\n\nfilp-\u003ef_pos only get updated at the end of the function. Thus d_off of those\ndirents who are in the middle will be 0, and this will cause a problem in\nglibc\u0027s readdir implementation, specifically endless loop. Because when overflow\noccurs, f_pos will be set to next dirent to read, however it will be 0, unless\nthe next one is the last one. So it will start over again and again.\n\nThere is a sample program in man 2 gendents. This is the output of the program\nrunning on a multithread program\u0027s task dir before this patch is applied:\n\n $ ./a.out /proc/3807/task\n --------------- nread\u003d128 ---------------\n i-node# file type d_reclen d_off d_name\n 506442 directory 16 1 .\n 506441 directory 16 0 ..\n 506443 directory 16 0 3807\n 506444 directory 16 0 3809\n 506445 directory 16 0 3812\n 506446 directory 16 0 3861\n 506447 directory 16 0 3862\n 506448 directory 16 8 3863\n\nThis is the output after this patch is applied\n\n $ ./a.out /proc/3807/task\n --------------- nread\u003d128 ---------------\n i-node# file type d_reclen d_off d_name\n 506442 directory 16 1 .\n 506441 directory 16 2 ..\n 506443 directory 16 3 3807\n 506444 directory 16 4 3809\n 506445 directory 16 5 3812\n 506446 directory 16 6 3861\n 506447 directory 16 7 3862\n 506448 directory 16 8 3863\n\nSigned-off-by: Zhang Le \u003cr0bertz@gentoo.org\u003e\nAcked-by: Al Viro \u003cviro@ZenIV.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a0c9f240a992c4c2b6ac40324ece27475cf3b71a", "tree": "e42e5231d0e551b1b1f726c06c2ca27c510efb7a", "parents": [ "5bb47b9ff3d16d40f8d45380b373497a545fa280", "230e40fbda242544389a5428a2efac568178ddfe" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jan 07 12:01:06 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jan 07 12:01:06 2009 -0800" }, "message": "Merge branch \u0027proc-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc\n\n* \u0027proc-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc:\n proc: remove write-only variable in proc_pident_lookup()\n proc: fix sparse warning\n proc: add /proc/*/stack\n proc: remove \u0027##\u0027 usage\n proc: remove useless WARN_ONs\n proc: stop using BKL\n" }, { "commit": "56ff5efad96182f4d3cb3dc6b07396762c658f16", "tree": "cb91f93aa2324573527165d56d230b606a3111ed", "parents": [ "acfa4380efe77e290d3a96b11cd4c9f24f4fbb18" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Dec 09 09:34:39 2008 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Jan 05 11:54:28 2009 -0500" }, "message": "zero i_uid/i_gid on inode allocation\n\n... and don\u0027t bother in callers. Don\u0027t bother with zeroing i_blocks,\nwhile we are at it - it\u0027s already been zeroed.\n\ni_mode is not worth the effort; it has no common default value.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "230e40fbda242544389a5428a2efac568178ddfe", "tree": "596bf1b66ba0c0478290d1186597f58572ec82aa", "parents": [ "dfe6b7d9406c631d697f8bbe1eae5569b808154f" ], "author": { "name": "WANG Cong", "email": "wangcong@zeuux.org", "time": "Tue Dec 30 19:10:35 2008 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Jan 05 12:27:45 2009 +0300" }, "message": "proc: remove write-only variable in proc_pident_lookup()\n\nSigned-off-by: WANG Cong \u003cwangcong@zeuux.org\u003e\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "dfe6b7d9406c631d697f8bbe1eae5569b808154f", "tree": "000330d17342d96abe809ad2a64ce6a4f1631275", "parents": [ "2ec220e27f5040aec1e88901c1b6ea3d135787ad" ], "author": { "name": "Hannes Eder", "email": "hannes@hanneseder.net", "time": "Tue Dec 30 18:49:13 2008 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Jan 05 12:27:45 2009 +0300" }, "message": "proc: fix sparse warning\n\nfs/proc/base.c:312:4: warning: do-while statement is not a compound statement\n\nSigned-off-by: Hannes Eder \u003channes@hanneseder.net\u003e\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "2ec220e27f5040aec1e88901c1b6ea3d135787ad", "tree": "06ed111c8e331d47927d9b46386f4063b74ec419", "parents": [ "631f9c1868b970197747c80fc5168ad7d9fd5d53" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Mon Nov 10 11:26:08 2008 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Jan 05 12:27:44 2009 +0300" }, "message": "proc: add /proc/*/stack\n\n/proc/*/stack adds the ability to query a task\u0027s stack trace. It is more\nuseful than /proc/*/wchan as it provides full stack trace instead of single\ndepth. Example output:\n\n\t$ cat /proc/self/stack\n\t[\u003cc010a271\u003e] save_stack_trace_tsk+0x17/0x35\n\t[\u003cc01827b4\u003e] proc_pid_stack+0x4a/0x76\n\t[\u003cc018312d\u003e] proc_single_show+0x4a/0x5e\n\t[\u003cc016bdec\u003e] seq_read+0xf3/0x29f\n\t[\u003cc015a004\u003e] vfs_read+0x6d/0x91\n\t[\u003cc015a0c1\u003e] sys_read+0x3b/0x60\n\t[\u003cc0102eda\u003e] syscall_call+0x7/0xb\n\t[\u003cffffffff\u003e] 0xffffffff\n\n[add save_stack_trace_tsk() on mips, ACK Ralf --adobriyan]\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "631f9c1868b970197747c80fc5168ad7d9fd5d53", "tree": "ba6dd234710698070aa4aa83d105cef771a901a1", "parents": [ "ecae934edc0c29ec7405da18855004c317de26c6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Nov 10 01:32:52 2008 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Jan 05 12:27:44 2009 +0300" }, "message": "proc: remove \u0027##\u0027 usage\n\nInability to jump to /proc/*/foo handlers with ctags is annoying.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "ecae934edc0c29ec7405da18855004c317de26c6", "tree": "e5cd5a059a8ad984a73c21af7014852782242813", "parents": [ "b4df2b92d8461444fac429c75ba6e125c63056bc" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Sun Nov 09 23:12:18 2008 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Jan 05 12:27:44 2009 +0300" }, "message": "proc: remove useless WARN_ONs\n\nNULL \"struct inode *\" means VFS passed NULL inode to -\u003eopen.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "a39b863342b8aba52390092be95db58f6ed56061", "tree": "a952625e9815c0a4d7fe9f85c33908068513429a", "parents": [ "b0f4b285d7ed174804658539129a834270f4829a", "4e202284e6ac1695df3eb4a0e549ea78addfb663" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Dec 28 12:27:58 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Dec 28 12:27:58 2008 -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: (31 commits)\n sched: fix warning in fs/proc/base.c\n schedstat: consolidate per-task cpu runtime stats\n sched: use RCU variant of list traversal in for_each_leaf_rt_rq()\n sched, cpuacct: export percpu cpuacct cgroup stats\n sched, cpuacct: refactoring cpuusage_read / cpuusage_write\n sched: optimize update_curr()\n sched: fix wakeup preemption clock\n sched: add missing arch_update_cpu_topology() call\n sched: let arch_update_cpu_topology indicate if topology changed\n sched: idle_balance() does not call load_balance_newidle()\n sched: fix sd_parent_degenerate on non-numa smp machine\n sched: add uid information to sched_debug for CONFIG_USER_SCHED\n sched: move double_unlock_balance() higher\n sched: update comment for move_task_off_dead_cpu\n sched: fix inconsistency when redistribute per-cpu tg-\u003ecfs_rq shares\n sched/rt: removed unneeded defintion\n sched: add hierarchical accounting to cpu accounting controller\n sched: include group statistics in /proc/sched_debug\n sched: rename SCHED_NO_NO_OMIT_FRAME_POINTER \u003d\u003e SCHED_OMIT_FRAME_POINTER\n sched: clean up SCHED_CPUMASK_ALLOC\n ...\n" }, { "commit": "cbacc2c7f066a1e01b33b0e27ae5efbf534bc2db", "tree": "90d1093131d2a3543a8b3b1f3364e7c6f4081a93", "parents": [ "4a6908a3a050aacc9c3a2f36b276b46c0629ad91", "74192246910ff4fb95309ba1a683215644beeb62" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Dec 25 11:40:09 2008 +1100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Thu Dec 25 11:40:09 2008 +1100" }, "message": "Merge branch \u0027next\u0027 into for-linus\n" }, { "commit": "826e08b0157c0ce8a80dfe3c0a6c5a1540dd0b1d", "tree": "7bf9ec3611721a05aaac7053b8626cf9feff1c9f", "parents": [ "9c2c48020ec0dd6ecd27e5a1298f73b40d85a595" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 22 07:37:41 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 22 07:41:06 2008 +0100" }, "message": "sched: fix warning in fs/proc/base.c\n\nStephen Rothwell reported this new (harmless) build warning on platforms that\ndefine u64 to long:\n\n fs/proc/base.c: In function \u0027proc_pid_schedstat\u0027:\n fs/proc/base.c:352: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 3 has type \u0027u64\u0027\n\nasm-generic/int-l64.h platforms strike again: that file should be eliminated.\n\nFix it by casting the parameters to long long.\n\nReported-by: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9c2c48020ec0dd6ecd27e5a1298f73b40d85a595", "tree": "1a44f56e18012120aff0969094eebd572deb2ea3", "parents": [ "e9515c3c9feecd74174c2998add0db51e02abb8d" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Tue Dec 16 23:41:22 2008 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 18 13:54:01 2008 +0100" }, "message": "schedstat: consolidate per-task cpu runtime stats\n\nImpact: simplify code\n\nWhen we turn on CONFIG_SCHEDSTATS, per-task cpu runtime is accumulated\ntwice. Once in task-\u003ese.sum_exec_runtime and once in sched_info.cpu_time.\nThese two stats are exactly the same.\n\nGiven that task-\u003ese.sum_exec_runtime is always accumulated by the core\nscheduler, sched_info can reuse that data instead of duplicate the accounting.\n\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9c24624727f6d6c460e45762a408ca5f5b9b8ef2", "tree": "39f41dc5e46a9f0e1151963eb1d4f2b7ff77ee3d", "parents": [ "6ee5a399d6a92a52646836a6e10faf255c16393e" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Tue Dec 09 13:14:27 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 10 08:01:54 2008 -0800" }, "message": "KSYM_SYMBOL_LEN fixes\n\nMiles Lane tailing /sys files hit a BUG which Pekka Enberg has tracked\nto my 966c8c12dc9e77f931e2281ba25d2f0244b06949 sprint_symbol(): use\nless stack exposing a bug in slub\u0027s list_locations() -\nkallsyms_lookup() writes a 0 to namebuf[KSYM_NAME_LEN-1], but that was\nbeyond the end of page provided.\n\nThe 100 slop which list_locations() allows at end of page looks roughly\nenough for all the other stuff it might print after the symbol before\nit checks again: break out KSYM_SYMBOL_LEN earlier than before.\n\nLatencytop and ftrace and are using KSYM_NAME_LEN buffers where they\nneed KSYM_SYMBOL_LEN buffers, and vmallocinfo a 2*KSYM_NAME_LEN buffer\nwhere it wants a KSYM_SYMBOL_LEN buffer: fix those before anyone copies\nthem.\n\n[akpm@linux-foundation.org: ftrace.h needs module.h]\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc Miles Lane \u003cmiles.lane@gmail.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.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": "c69e8d9c01db2adc503464993c358901c9af9de4", "tree": "bed94aaa9aeb7a7834d1c880f72b62a11a752c78", "parents": [ "86a264abe542cfececb4df129bc45a0338d8cdb9" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Nov 14 10:39:19 2008 +1100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri Nov 14 10:39:19 2008 +1100" }, "message": "CRED: Use RCU to access another task\u0027s creds and to release a task\u0027s own creds\n\nUse RCU to access another task\u0027s creds and to release a task\u0027s own creds.\nThis means that it will be possible for the credentials of a task to be\nreplaced without another task (a) requiring a full lock to read them, and (b)\nseeing deallocated memory.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "b6dff3ec5e116e3af6f537d4caedcad6b9e5082a", "tree": "9e76f972eb7ce9b84e0146c8e4126a3f86acb428", "parents": [ "15a2460ed0af7538ca8e6c610fe607a2cd9da142" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Nov 14 10:39:16 2008 +1100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri Nov 14 10:39:16 2008 +1100" }, "message": "CRED: Separate task security context from task_struct\n\nSeparate the task security context from task_struct. At this point, the\nsecurity data is temporarily embedded in the task_struct with two pointers\npointing to it.\n\nNote that the Alpha arch is altered as it refers to (E)UID and (E)GID in\nentry.S via asm-offsets.\n\nWith comment fixes Signed-off-by: Marc Dionne \u003cmarc.c.dionne@gmail.com\u003e\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "aeb5d727062a0238a2f96c9c380fbd2be4640c6f", "tree": "51dae8a071fcf42e4431a66d37c5b843c8e99cf6", "parents": [ "2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Sep 02 15:28:45 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Oct 21 07:47:06 2008 -0400" }, "message": "[PATCH] introduce fmode_t, do annotations\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "3bbfe0596746e1590888a6e1e6a07583265238b7", "tree": "057d3d2aa8cb68eff8c944378e86ba120eff9cf4", "parents": [ "45acb8db06bad529f0feaf89465ce33152640089" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Oct 10 03:27:16 2008 +0400" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Oct 10 04:24:51 2008 +0400" }, "message": "proc: remove kernel.maps_protect\n\nAfter commit 831830b5a2b5d413407adf380ef62fe17d6fcbf2 aka\n\"restrict reading from /proc/\u003cpid\u003e/maps to those who share -\u003emm or can ptrace\"\nsysctl stopped being relevant because commit moved security checks from -\u003eshow\ntime to -\u003estart time (mm_for_maps()).\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Kees Cook \u003ckees.cook@canonical.com\u003e\n" }, { "commit": "478307230810d7e2a753ed220db9066dfdf88718", "tree": "7cb8bfebc5a0a7c043bdfda5675ddb526da1af34", "parents": [ "a6bebbc87a8c16eabb6bd5c6fd2d994be0236fba" ], "author": { "name": "Kees Cook", "email": "kees.cook@canonical.com", "time": "Mon Oct 06 03:11:58 2008 +0400" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Oct 10 04:18:57 2008 +0400" }, "message": "[PATCH] proc: show personality via /proc/pid/personality\n\nMake process personality flags visible in /proc. Since a process\u0027s\npersonality is potentially sensitive (e.g. READ_IMPLIES_EXEC), make this\nfile only readable by the process owner.\n\nSigned-off-by: Kees Cook \u003ckees.cook@canonical.com\u003e\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "a6bebbc87a8c16eabb6bd5c6fd2d994be0236fba", "tree": "3e617ca49063f3a12c982da5d6c687882a1b4070", "parents": [ "53167a3ef23df561d898dee636f3393e9fba937c" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Sun Oct 05 00:51:15 2008 +0400" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Oct 10 04:18:57 2008 +0400" }, "message": "[PATCH] signal, procfs: some lock_task_sighand() users do not need rcu_read_lock()\n\nlock_task_sighand() make sure task-\u003esighand is being protected,\nso we do not need rcu_read_lock().\n[ exec() will get task-\u003esighand-\u003esiglock before change task-\u003esighand! ]\n\nBut code using rcu_read_lock() _just_ to protect lock_task_sighand()\nonly appear in procfs. (and some code in procfs use lock_task_sighand()\nwithout such redundant protection.)\n\nOther subsystem may put lock_task_sighand() into rcu_read_lock()\ncritical region, but these rcu_read_lock() are used for protecting\n\"for_each_process()\", \"find_task_by_vpid()\" etc. , not for protecting\nlock_task_sighand().\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\n[ok from Oleg]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "7c44319dc6deb0028ef7811670bf1e4bc6644672", "tree": "5904a9867ebe43153123b11a32d5389cb947596b", "parents": [ "dc39778f952a820b7da45756a900a4778da343cd" ], "author": { "name": "Alexander Beregalov", "email": "a.beregalov@gmail.com", "time": "Tue Aug 05 13:01:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 05 14:33:50 2008 -0700" }, "message": "proc: fix warnings\n\nproc: fix warnings\n\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 3 has type \u0027u64\u0027\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 4 has type \u0027u64\u0027\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 5 has type \u0027u64\u0027\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 6 has type \u0027u64\u0027\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 7 has type \u0027u64\u0027\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 8 has type \u0027u64\u0027\n fs/proc/base.c:2429: warning: format \u0027%llu\u0027 expects type \u0027long long unsigned int\u0027, but argument 9 has type \u0027u64\u0027\n\nSigned-off-by: Alexander Beregalov \u003ca.beregalov@gmail.com\u003e\nAcked-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "940389b8afad6495211614c13eb91ef7001773ec", "tree": "92c581cc9dc7a067899a6a28e382e4099dfe8ead", "parents": [ "837b41b5de356aa67abb2cadb5eef3efc7776f91" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Mon Jul 28 00:48:12 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 27 16:12:28 2008 -0700" }, "message": "task IO accounting: move all IO statistics in struct task_io_accounting\n\nSimplify the code of include/linux/task_io_accounting.h.\n\nIt is also more reasonable to have all the task i/o-related statistics in a\nsingle struct (task_io_accounting).\n\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5995477ab7f3522c497c9c4a1c55373e9d655574", "tree": "a147fb61642a7ac5441855964eb97a2ff1e37202", "parents": [ "605ccb73f6a1c891a16268b3a2923208fc637958" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Sun Jul 27 17:29:15 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 27 09:58:20 2008 -0700" }, "message": "task IO accounting: improve code readability\n\nPut all i/o statistics in struct proc_io_accounting and use inline functions to\ninitialize and increment statistics, removing a lot of single variable\nassignments.\n\nThis also reduces the kernel size as following (with CONFIG_TASK_XACCT\u003dy and\nCONFIG_TASK_IO_ACCOUNTING\u003dy).\n\n text data bss dec hex filename\n 11651 0 0 11651 2d83 kernel/exit.o.before\n 11619 0 0 11619 2d63 kernel/exit.o.after\n 10886 132 136 11154 2b92 kernel/fork.o.before\n 10758 132 136 11026 2b12 kernel/fork.o.after\n\n 3082029 807968 4818600 8708597 84e1f5 vmlinux.o.before\n 3081869 807968 4818600 8708437 84e155 vmlinux.o.after\n\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4836e3007882984279ca63d3c42bf0b14616eb78", "tree": "28bf22726964e068b825491d71a141eefedbe5f8", "parents": [ "5c7c204aeca51ccfad63caab4fcdc5d8026c0fd8", "4e1e018ecc6f7bfd10fc75b3ff9715cc8164e0a2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 20:23:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 20:23:44 2008 -0700" }, "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: (39 commits)\n [PATCH] fix RLIM_NOFILE handling\n [PATCH] get rid of corner case in dup3() entirely\n [PATCH] remove remaining namei_{32,64}.h crap\n [PATCH] get rid of indirect users of namei.h\n [PATCH] get rid of __user_path_lookup_open\n [PATCH] f_count may wrap around\n [PATCH] dup3 fix\n [PATCH] don\u0027t pass nameidata to __ncp_lookup_validate()\n [PATCH] don\u0027t pass nameidata to gfs2_lookupi()\n [PATCH] new (local) helper: user_path_parent()\n [PATCH] sanitize __user_walk_fd() et.al.\n [PATCH] preparation to __user_walk_fd cleanup\n [PATCH] kill nameidata passing to permission(), rename to inode_permission()\n [PATCH] take noexec checks to very few callers that care\n Re: [PATCH 3/6] vfs: open_exec cleanup\n [patch 4/4] vfs: immutable inode checking cleanup\n [patch 3/4] fat: dont call notify_change\n [patch 2/4] vfs: utimes cleanup\n [patch 1/4] vfs: utimes: move owner check into inode_change_ok()\n [PATCH] vfs: use kstrdup() and check failing allocation\n ...\n" }, { "commit": "b2d002dba5a8a4c0c3ec96fd1ff3c9def6bd71a1", "tree": "a87afab3739039531bdec50aa4f588cdd672bd02", "parents": [ "6a9436d0c3cbe8941b1acd5b0736d355295cad98" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Sat Jul 26 15:22:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 20:16:47 2008 -0700" }, "message": "task IO accounting: correctly account threads IO statistics\n\nOleg Nesterov points out that we should check that the task is still alive\nbefore we iterate over the threads. This patch includes a fixup for this.\n\nAlso simplify do_io_accounting() implementation.\n\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e6305c43eda10ebfd2ad9e35d6e172ccc7bb3695", "tree": "8a95bd0e27fb3ce895cca9ef91af2e1605e4cdab", "parents": [ "1bd5191d9f5d1928c4efdf604c4164b04bb88dbe" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 15 21:03:57 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:14 2008 -0400" }, "message": "[PATCH] sanitize -\u003epermission() prototype\n\n* kill nameidata * argument; map the 3 bits in -\u003eflags anybody cares\n about to new MAY_... ones and pass with the mask.\n* kill redundant gfs2_iop_permission()\n* sanitize ecryptfs_permission()\n* fix remaining places where -\u003epermission() instances might barf on new\n MAY_... found in mask.\n\nThe obvious next target in that direction is permission(9)\n\nfolded fix for nfs_permission() breakage from Miklos Szeredi \u003cmszeredi@suse.cz\u003e\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "ebcb67341fee34061430f3367f2e507e52ee051b", "tree": "c6790a014ead7c6432178aa2a0dac7eb41c25b40", "parents": [ "bbc698636ed48b6fcd323964e0f847a6a796325d" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:46:00 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:10 2008 -0700" }, "message": "/proc/PID/syscall\n\nThis adds /proc/PID/syscall and /proc/PID/task/TID/syscall magic files.\nThese use task_current_syscall() to show the task\u0027s current system call\nnumber and argument registers, stack pointer and PC. For a task blocked\nbut not in a syscall, the file shows \"-1\" in place of the syscall number,\nfollowed by only the SP and PC. For a task that\u0027s not blocked, it shows\n\"running\".\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d094efeb1e98010c6b99923f1eb7e17bf1e3a74", "tree": "6ee271b6da5796e5321d2ab6f9d7d9ba03c300a2", "parents": [ "dae33574dcf5211e1f43c7e45fa29f73ba3e00cb" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:08 2008 -0700" }, "message": "tracehook: tracehook_tracer_task\n\nThis adds the tracehook_tracer_task() hook to consolidate all forms of\n\"Who is using ptrace on me?\" logic. This is used for \"TracerPid:\" in\n/proc and for permission checks. We also clean up the selinux code the\ncalled an identical accessor.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "297c5d92634c809cef23d73e7b2556f2528ff7e2", "tree": "d006fa29daa24242c64cff3b66dd75fbb0003b0f", "parents": [ "0c18d7a5df82524e634637c3aec24d4cba096442" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Fri Jul 25 01:48:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:47 2008 -0700" }, "message": "task IO accounting: provide distinct tgid/tid I/O statistics\n\nReport per-thread I/O statistics in /proc/pid/task/tid/io and aggregate\nparent I/O statistics in /proc/pid/io. This approach follows the same\nmodel used to account per-process and per-thread CPU times.\n\nAs a practial application, this allows for example to quickly find the top\nI/O consumer when a process spawns many child threads that perform the\nactual I/O work, because the aggregated I/O statistics can always be found\nin /proc/pid/io.\n\n[ Oleg Nesterov points out that we should check that the task is still\n alive before we iterate over the threads, but also says that we can do\n that fixup on top of this later. - Linus ]\n\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nCc: Matt Heaton \u003cmatt@hostmonster.com\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nAcked-by-with-comments: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "006ebb40d3d65338bd74abb03b945f8d60e362bd", "tree": "c548c678b54b307e1fb9acf94676fb7bfd849501", "parents": [ "feb2a5b82d87fbdc01c00b7e9413e4b5f4c1f0c1" ], "author": { "name": "Stephen Smalley", "email": "sds@tycho.nsa.gov", "time": "Mon May 19 08:32:49 2008 -0400" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Jul 14 15:01:47 2008 +1000" }, "message": "Security: split proc ptrace checking into read vs. attach\n\nEnable security modules to distinguish reading of process state via\nproc from full ptrace access by renaming ptrace_may_attach to\nptrace_may_access and adding a mode argument indicating whether only\nread access or full attach access is requested. This allows security\nmodules to permit access to reading process state without granting\nfull ptrace access. The base DAC/capability checking remains unchanged.\n\nRead access to /proc/pid/mem continues to apply a full ptrace attach\ncheck since check_mem_permission() already requires the current task\nto already be ptracing the target. The other ptrace checks within\nproc for elements like environ, maps, and fds are changed to pass the\nread mode instead of attach.\n\nIn the SELinux case, we model such reading of process state as a\nreading of a proc file labeled with the target process\u0027 label. This\nenables SELinux policy to permit such reading of process state without\npermitting control or manipulation of the target process, as there are\na number of cases where programs probe for such information via proc\nbut do not need to be able to control the target (e.g. procps,\nlsof, PolicyKit, ConsoleKit). At present we have to choose between\nallowing full ptrace in policy (more permissive than required/desired)\nor breaking functionality (or in some cases just silencing the denials\nvia dontaudit rules but this can hide genuine attacks).\n\nThis version of the patch incorporates comments from Casey Schaufler\n(change/replace existing ptrace_may_attach interface, pass access\nmode), and Chris Wright (provide greater consistency in the checking).\n\nNote that like their predecessors __ptrace_may_attach and\nptrace_may_attach, the __ptrace_may_access and ptrace_may_access\ninterfaces use different return value conventions from each other (0\nor -errno vs. 1 or 0). I retained this difference to avoid any\nchanges to the caller logic but made the difference clearer by\nchanging the latter interface to return a bool rather than an int and\nby adding a comment about it to ptrace.h for any future callers.\n\nSigned-off-by: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nAcked-by: Chris Wright \u003cchrisw@sous-sol.org\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "aed5417593ad125283f35513573282139a8664b5", "tree": "8e9ba5f4d81ef3c8e8de0e0d7d6d1acaa79041f2", "parents": [ "aabe188565124ee2ed060a072764d6ed34dfa4ed" ], "author": { "name": "Vegard Nossum", "email": "vegard.nossum@gmail.com", "time": "Thu Jun 05 22:46:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 06 11:29:13 2008 -0700" }, "message": "proc: calculate the correct /proc/\u003cpid\u003e link count\n\nThis patch:\n\n commit e9720acd728a46cb40daa52c99a979f7c4ff195c\n Author: Pavel Emelyanov \u003cxemul@openvz.org\u003e\n Date: Fri Mar 7 11:08:40 2008 -0800\n\n [NET]: Make /proc/net a symlink on /proc/self/net (v3)\n\nintroduced a /proc/self/net directory without bumping the corresponding\nlink count for /proc/self.\n\nThis patch replaces the static link count initializations with a call that\ncounts the number of directory entries in the given pid_entry table\nwhenever it is instantiated, and thus relieves the burden of manually\nkeeping the two in sync.\n\n[akpm@linux-foundation.org: cleanup]\nAcked-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\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": "6ee650467d5bf972d10441e99688e9b48171f99c", "tree": "34e851884d9fed7a4a24836b85934c931d8110f5", "parents": [ "f26a3988917913b3d11b2bd741601a2c64ab9204" ], "author": { "name": "Steve Grubb", "email": "sgrubb@redhat.com", "time": "Tue Apr 29 15:01:13 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat May 17 03:27:27 2008 -0400" }, "message": "[PATCH] open sessionid permissions\n\nThe current permissions on sessionid are a little too restrictive.\n\nSigned-off-by: Steve Grubb \u003csgrubb@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9f3acc3140444a900ab280de942291959f0f615d", "tree": "0d7f3f9698071ff90fb9a127a4c6e86e1c37c945", "parents": [ "a2dcb44c3c5a8151d2d9f6ac8ad0789efcdbe184" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Apr 24 07:44:08 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu May 01 13:08:16 2008 -0400" }, "message": "[PATCH] split linux/file.h\n\nInitial splitoff of the low-level stuff; taken to fdtable.h\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "638fa202cdb207083a12d6f73e313605a8fc1037", "tree": "e049d74e9f7e15a55149dc17482572c8b2aefa18", "parents": [ "0d5c9f5f59a61cf8e98e2925cb5d81cbe7694305" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Tue Apr 29 01:01:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:17 2008 -0700" }, "message": "procfs: mem permission cleanup\n\nThis cleans up the permission checks done for /proc/PID/mem i/o calls. It\nputs all the logic in a new function, check_mem_permission().\n\nThe old code repeated the (!MAY_PTRACE(task) || !ptrace_may_attach(task))\nmagical expression multiple times. The new function does all that work in one\nplace, with clear comments.\n\nThe old code called security_ptrace() twice on successful checks, once in\nMAY_PTRACE() and once in __ptrace_may_attach(). Now it\u0027s only called once,\nand only if all other checks have succeeded.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "925d1c401fa6cfd0df5d2e37da8981494ccdec07", "tree": "4f3b7a09311cd99783b822350628125e44f9902d", "parents": [ "e93b4ea20adb20f1f1f07f10ba5d7dd739d2843e" ], "author": { "name": "Matt Helsley", "email": "matthltc@us.ibm.com", "time": "Tue Apr 29 01:01:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:17 2008 -0700" }, "message": "procfs task exe symlink\n\nThe kernel implements readlink of /proc/pid/exe by getting the file from\nthe first executable VMA. Then the path to the file is reconstructed and\nreported as the result.\n\nBecause of the VMA walk the code is slightly different on nommu systems.\nThis patch avoids separate /proc/pid/exe code on nommu systems. Instead of\nwalking the VMAs to find the first executable file-backed VMA we store a\nreference to the exec\u0027d file in the mm_struct.\n\nThat reference would prevent the filesystem holding the executable file\nfrom being unmounted even after unmapping the VMAs. So we track the number\nof VM_EXECUTABLE VMAs and drop the new reference when the last one is\nunmapped. This avoids pinning the mounted filesystem.\n\n[akpm@linux-foundation.org: improve comments]\n[yamamoto@valinux.co.jp: fix dup_mmap]\nSigned-off-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc:\"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2d4d4864ac08caff5c204a752bd004eed4f08760", "tree": "a8907c33afae589146fdcd06eacd740aff48c6a1", "parents": [ "a1a2c409b666befc58c2db9c7fbddf200f153470" ], "author": { "name": "Ram Pai", "email": "linuxram@us.ibm.com", "time": "Thu Mar 27 13:06:25 2008 +0100" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Apr 23 00:05:03 2008 -0400" }, "message": "[patch 6/7] vfs: mountinfo: add /proc/\u003cpid\u003e/mountinfo\n\n[mszeredi@suse.cz] rewrite and split big patch into managable chunks\n\n/proc/mounts in its current form lacks important information:\n\n - propagation state\n - root of mount for bind mounts\n - the st_dev value used within the filesystem\n - identifier for each mount and it\u0027s parent\n\nIt also suffers from the following problems:\n\n - not easily extendable\n - ambiguity of mountpoints within a chrooted environment\n - doesn\u0027t distinguish between filesystem dependent and independent options\n - doesn\u0027t distinguish between per mount and per super block options\n\nThis patch introduces /proc/\u003cpid\u003e/mountinfo which attempts to address\nall these deficiencies.\n\nCode shared between /proc/\u003cpid\u003e/mounts and /proc/\u003cpid\u003e/mountinfo is\nextracted into separate functions.\n\nThanks to Al Viro for the help in getting the design right.\n\nSigned-off-by: Ram Pai \u003clinuxram@us.ibm.com\u003e\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a1a2c409b666befc58c2db9c7fbddf200f153470", "tree": "3ea8e4c8f1311436939492d70de23dcf185994de", "parents": [ "719f5d7f0b90ac2c8f8ca4232eb322b266fea01e" ], "author": { "name": "Miklos Szeredi", "email": "mszeredi@suse.cz", "time": "Thu Mar 27 13:06:24 2008 +0100" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Apr 23 00:04:57 2008 -0400" }, "message": "[patch 5/7] vfs: mountinfo: allow using process root\n\nAllow /proc/\u003cpid\u003e/mountinfo to use the root of \u003cpid\u003e to calculate\nmountpoints.\n\n - move definition of \u0027struct proc_mounts\u0027 to \u003clinux/mnt_namespace.h\u003e\n - add the process\u0027s namespace and root to this structure\n - pass a pointer to \u0027struct proc_mounts\u0027 into seq_operations\n\nIn addition the following cleanups are made:\n\n - use a common open function for /proc/\u003cpid\u003e/{mounts,mountstat}\n - surround namespace.c part of these proc files with #ifdef CONFIG_PROC_FS\n - make the seq_operations structures const\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9b4f526cdc0f95f635607dfba6ac788b3deca188", "tree": "f9f324dbd88856fdaeff1d0146059806bacba26f", "parents": [ "ed1524371716466e9c762808b02601d0d0276a92" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Apr 22 01:32:44 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Apr 22 19:55:03 2008 -0400" }, "message": "[PATCH] proc_readfd_common() race fix\n\nSince we drop the rcu_read_lock inside the loop, we can\u0027t assume\nthat files-\u003efdt will remain unchanged (and not freed) between\niterations.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7d3628b230ecbdc29566c18bc7800ff8ed66a71f", "tree": "eac1bff40bdb655fdfdeaf1e22ce12a81296f1fb", "parents": [ "2c7871982cf27caaddbaeb7e2121ce1374b520ff", "94833dfb8c98ed4ca1944dd2c1339d88a2d1c758" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 21 07:57:45 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Mar 21 07:57:45 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (46 commits)\n [NET] ifb: set separate lockdep classes for queue locks\n [IPV6] KCONFIG: Fix description about IPV6_TUNNEL.\n [TCP]: Fix shrinking windows with window scaling\n netpoll: zap_completion_queue: adjust skb-\u003eusers counter\n bridge: use time_before() in br_fdb_cleanup()\n [TG3]: Fix build warning on sparc32.\n MAINTAINERS: bluez-devel is subscribers-only\n audit: netlink socket can be auto-bound to pid other than current-\u003epid (v2)\n [NET]: Fix permissions of /proc/net\n [SCTP]: Fix a race between module load and protosw access\n [NETFILTER]: ipt_recent: sanity check hit count\n [NETFILTER]: nf_conntrack_h323: logical-bitwise \u0026 confusion in process_setup()\n [RT2X00] drivers/net/wireless/rt2x00/rt2x00dev.c: remove dead code, fix warning\n [IPV4]: esp_output() misannotations\n [8021Q]: vlan_dev misannotations\n xfrm: -\u003eeth_proto is __be16\n [IPV4]: ipv4_is_lbcast() misannotations\n [SUNRPC]: net/* NULL noise\n [SCTP]: fix misannotated __sctp_rcv_asconf_lookup()\n [PKT_SCHED]: annotate cls_u32\n ...\n" }, { "commit": "4f42c288e66a3395e94158badbd182b2dae8eccb", "tree": "647a3d4fdeabdd36b29de8b4e8197123ee133fe6", "parents": [ "270637abff0cdf848b910b9f96ad342e1da61c66" ], "author": { "name": "Andre Noll", "email": "maan@systemlinux.org", "time": "Thu Mar 20 15:27:28 2008 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Thu Mar 20 15:27:28 2008 -0700" }, "message": "[NET]: Fix permissions of /proc/net\n\ncommit e9720ac ([NET]: Make /proc/net a symlink on /proc/self/net (v3))\nbroke ganglia and probably other applications that read /proc/net/dev.\n\nThis is due to the change of permissions of /proc/net that was\nintroduced in that commit.\n\nBefore: dr-xr-xr-x 5 root root 0 Mar 19 11:30 /proc/net\nAfter: dr-xr--r-- 5 root root 0 Mar 19 11:29 /proc/self/net\n\nThis patch restores the permissions to the old value which makes\nganglia happy again.\n\nPavel Emelyanov says:\n\n\tThis also broke the postfix, as it was reported in bug #10286\n\tand described in detail by Benjamin.\n\nSigned-off-by: Andre Noll \u003cmaan@systemlinux.org\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "1e0bd7550ea9cf474b1ad4c6ff5729a507f75fdc", "tree": "06e2df8c0f07339e55f7c410e43094dd91a99892", "parents": [ "bde4f8fa8db2abd5ac9c542d76012d0fedab050f" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Thu Mar 13 08:15:31 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Mar 18 10:51:22 2008 -0400" }, "message": "[PATCH] export sessionid alongside the loginuid in procfs\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "609eb39c8d8a8d2930780428f6cbe2f63eb84734", "tree": "0cf74a0e6e64531b31c5a1c9d45fbcb88f5e4d1f", "parents": [ "123d43acd2e55cd7db792d17c7e906db42cada42", "22626216c46f2ec86287e75ea86dd9ac3df54265" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 12 13:08:09 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 12 13:08:09 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits)\n [SCTP]: Fix local_addr deletions during list traversals.\n net: fix build with CONFIG_NET\u003dn\n [TCP]: Prevent sending past receiver window with TSO (at last skb)\n rt2x00: Add new D-Link USB ID\n rt2x00: never disable multicast because it disables broadcast too\n libertas: fix the \u0027compare command with itself\u0027 properly\n drivers/net/Kconfig: fix whitespace for GELIC_WIRELESS entry\n [NETFILTER]: nf_queue: don\u0027t return error when unregistering a non-existant handler\n [NETFILTER]: nfnetlink_queue: fix EPERM when binding/unbinding and instance 0 exists\n [NETFILTER]: nfnetlink_log: fix EPERM when binding/unbinding and instance 0 exists\n [NETFILTER]: nf_conntrack: replace horrible hack with ksize()\n [NETFILTER]: nf_conntrack: add \\n to \"expectation table full\" message\n [NETFILTER]: xt_time: fix failure to match on Sundays\n [NETFILTER]: nfnetlink_log: fix computation of netlink skb size\n [NETFILTER]: nfnetlink_queue: fix computation of allocated size for netlink skb.\n [NETFILTER]: nfnetlink: fix ifdef in nfnetlink_compat.h\n [NET]: include \u003clinux/types.h\u003e into linux/ethtool.h for __u* typedef\n [NET]: Make /proc/net a symlink on /proc/self/net (v3)\n RxRPC: fix rxrpc_recvmsg()\u0027s returning of msg_name\n net/enc28j60: oops fix\n ...\n" }, { "commit": "b2211a361a4289c83971f89da53fe2eb9e72769d", "tree": "e73ba46c7d54199ccef2ec378569d29501179bf5", "parents": [ "5ea3a7480606cef06321cd85bc5113c72d2c7c68" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Tue Mar 11 18:03:35 2008 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue Mar 11 18:03:35 2008 -0700" }, "message": "net: fix build with CONFIG_NET\u003dn\n\nfs/built-in.o:(.rodata+0x1134): undefined reference to `proc_net_inode_operations\u0027\nfs/built-in.o:(.rodata+0x1138): undefined reference to `proc_net_operations\u0027\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "e9720acd728a46cb40daa52c99a979f7c4ff195c", "tree": "01380f601384cf93f30dedb64afe80359fecb807", "parents": [ "1ff82fe0024e8070c38346b8abc1ff09612dea4c" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Mar 07 11:08:40 2008 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Fri Mar 07 11:08:40 2008 -0800" }, "message": "[NET]: Make /proc/net a symlink on /proc/self/net (v3)\n\nCurrent /proc/net is done with so called \"shadows\", but current\nimplementation is broken and has little chances to get fixed.\n\nThe problem is that dentries subtree of /proc/net directory has\nfancy revalidation rules to make processes living in different\nnet namespaces see different entries in /proc/net subtree, but\ncurrently, tasks see in the /proc/net subdir the contents of any\nother namespace, depending on who opened the file first.\n\nThe proposed fix is to turn /proc/net into a symlink, which points\nto /proc/self/net, which in turn shows what previously was in\n/proc/net - the network-related info, from the net namespace the\nappropriate task lives in.\n\n# ls -l /proc/net\nlrwxrwxrwx 1 root root 8 Mar 5 15:17 /proc/net -\u003e self/net\n\nIn other words - this behaves like /proc/mounts, but unlike\n\"mounts\", \"net\" is not a file, but a directory.\n\nChanges from v2:\n* Fixed discrepancy of /proc/net nlink count and selinux labeling\n screwup pointed out by Stephen.\n\n To get the correct nlink count the -\u003egetattr callback for /proc/net\n is overridden to read one from the net-\u003eproc_net entry.\n\n To make selinux still work the net-\u003eproc_net entry is initialized\n properly, i.e. with the \"net\" name and the proc_net parent.\n\nSelinux fixes are\nAcked-by: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\n\nChanges from v1:\n* Fixed a task_struct leak in get_proc_task_net, pointed out by Paul.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "13d77c37cab2bb906022309e1e7182c327e49916", "tree": "e63f3a56dc443f3a2807b85102464d04934d06db", "parents": [ "d6643d12cb0885d06a1491b16c1476abcbd53d40" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Wed Feb 20 16:53:29 2008 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Feb 25 16:34:18 2008 +0100" }, "message": "latencytop: change /proc task_struct access method\n\nChange getting task_struct by get_proc_task() at read or write time,\nand returns -ESRCH if get_proc_task() returns NULL.\nThis is same behavior as other /proc files.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d6643d12cb0885d06a1491b16c1476abcbd53d40", "tree": "f342c01a278486e47a973cc84ffac72c43b57c64", "parents": [ "ae0027869db7d28563cd783865fab04ffd18419c" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Thu Feb 14 10:27:00 2008 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Feb 25 16:34:17 2008 +0100" }, "message": "latencytop: fix memory leak on latency proc file\n\nAt lstats_open(), calling get_proc_task() gets task struct, but it never put.\nput_task_struct() should be called when releasing.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ae0027869db7d28563cd783865fab04ffd18419c", "tree": "9d57da1dd823e9413fd539a4a60e09df6fe630f8", "parents": [ "2d07b255c7b8a9723010e5c74778e058dc05162e" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Thu Feb 14 10:26:24 2008 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Feb 25 16:34:17 2008 +0100" }, "message": "latencytop: fix kernel panic while reading latency proc file\n\nReading /proc/\u003cpid\u003e/latency or /proc/\u003cpid\u003e/task/\u003ctid\u003e/latency could cause\nNULL pointer dereference.\n\nIn lstats_open(), get_proc_task() can return NULL, in which case the kernel\nwill oops at lstats_show_proc() because m-\u003eprivate is NULL.\n\nWhen get_proc_task() returns NULL, the kernel should return -ENOENT.\n\nThis can be reproduced by the following script.\nwhile :\ndo\n date\n bash -c \u0027ls \u003e ls.$$\u0027 \u0026\n pid\u003d$!\n cat /proc/$pid/latency \u0026\n cat /proc/$pid/latency \u0026\n cat /proc/$pid/latency \u0026\n cat /proc/$pid/latency\ndone\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8808117ca571fd63e188a2306baae86cca9fce7a", "tree": "2cccec386bb732f0a14378dac298846f40fd691d", "parents": [ "45254b4fb2aef51c94a7397df1e481c4137b4b97" ], "author": { "name": "Eugene Teo", "email": "eugeneteo@kernel.sg", "time": "Sat Feb 23 15:23:52 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sat Feb 23 17:12:15 2008 -0800" }, "message": "proc: add RLIMIT_RTTIME to /proc/\u003cpid\u003e/limits\n\nRLIMIT_RTTIME was introduced to allow the user to set a runtime timeout on\nreal-time tasks: http://lkml.org/lkml/2007/12/18/218. This patch updates\n/proc/\u003cpid\u003e/limits with the new rlimit.\n\nSigned-off-by: Eugene Teo \u003ceugeneteo@kernel.sg\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\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": "cf28b4863f9ee8f122e8ff3ac0d403e07ba9c6d9", "tree": "65c91f6911b34c32e517938289621ce0e7baeaf3", "parents": [ "c32c2f63a9d6c953aaf168c0b2551da9734f76d2" ], "author": { "name": "Jan Blunck", "email": "jblunck@suse.de", "time": "Thu Feb 14 19:38:44 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 14 21:17:09 2008 -0800" }, "message": "d_path: Make d_path() use a struct path\n\nd_path() is used on a \u003cdentry,vfsmount\u003e pair. Lets use a struct path to\nreflect this.\n\n[akpm@linux-foundation.org: fix build in mm/memory.c]\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nAcked-by: Bryan Wu \u003cbryan.wu@analog.com\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: Michael Halcrow \u003cmhalcrow@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3dcd25f37cfe2943beca93f41f50994108248a60", "tree": "38fbe59fc60f6dd2bc88dcb0cbe5c265f5892e8a", "parents": [ "44707fdf5938ad269ea5d6c5744d82f6a7328746" ], "author": { "name": "Jan Blunck", "email": "jblunck@suse.de", "time": "Thu Feb 14 19:38:35 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 14 21:17:08 2008 -0800" }, "message": "d_path: Make proc_get_link() use a struct path argument\n\nproc_get_link() is always called with a dentry and a vfsmount from a struct\npath. Make proc_get_link() take it directly as an argument.\n\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6ac08c39a16f72c2d3e845cb6849a1392fa03e80", "tree": "d7603571e9ab3ea4b57b7901211320e48d0c5ed8", "parents": [ "5dd784d04924be5d8bc066aded0ec3274b20e612" ], "author": { "name": "Jan Blunck", "email": "jblunck@suse.de", "time": "Thu Feb 14 19:34:38 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 14 21:13:33 2008 -0800" }, "message": "Use struct path in fs_struct\n\n* Use struct path in fs_struct.\n\nSigned-off-by: Andreas Gruenbacher \u003cagruen@suse.de\u003e\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nAcked-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1d957f9bf87da74f420424d16ece005202bbebd3", "tree": "363d4770c0c74a536524c99ccd2762ce96ee9bbe", "parents": [ "4ac9137858e08a19f29feac4e1f4df7c268b0ba5" ], "author": { "name": "Jan Blunck", "email": "jblunck@suse.de", "time": "Thu Feb 14 19:34:35 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 14 21:13:33 2008 -0800" }, "message": "Introduce path_put()\n\n* Add path_put() functions for releasing a reference to the dentry and\n vfsmount of a struct path in the right order\n\n* Switch from path_release(nd) to path_put(\u0026nd-\u003epath)\n\n* Rename dput_path() to path_put_conditional()\n\n[akpm@linux-foundation.org: fix cifs]\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nSigned-off-by: Andreas Gruenbacher \u003cagruen@suse.de\u003e\nAcked-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: \u003clinux-fsdevel@vger.kernel.org\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Steven French \u003csfrench@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4ac9137858e08a19f29feac4e1f4df7c268b0ba5", "tree": "f5b5d84fd12fcc2b0ba0e7ce1a79ff381ad8f5dd", "parents": [ "c5e725f33b733a77de622e91b6ba5645fcf070be" ], "author": { "name": "Jan Blunck", "email": "jblunck@suse.de", "time": "Thu Feb 14 19:34:32 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 14 21:13:33 2008 -0800" }, "message": "Embed a struct path into struct nameidata instead of nd-\u003e{dentry,mnt}\n\nThis is the central patch of a cleanup series. In most cases there is no good\nreason why someone would want to use a dentry for itself. This series reflects\nthat fact and embeds a struct path into nameidata.\n\nTogether with the other patches of this series\n- it enforced the correct order of getting/releasing the reference count on\n \u003cdentry,vfsmount\u003e pairs\n- it prepares the VFS for stacking support since it is essential to have a\n struct path in every place where the stack can be traversed\n- it reduces the overall code size:\n\nwithout patch series:\n text data bss dec hex filename\n5321639 858418 715768 6895825 6938d1 vmlinux\n\nwith patch series:\n text data bss dec hex filename\n5320026 858418 715768 6894212 693284 vmlinux\n\nThis patch:\n\nSwitch from nd-\u003e{dentry,mnt} to nd-\u003epath.{dentry,mnt} everywhere.\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: fix cifs]\n[akpm@linux-foundation.org: fix smack]\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nSigned-off-by: Andreas Gruenbacher \u003cagruen@suse.de\u003e\nAcked-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: 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": "b55fcb22d445a7460cbbc138ceae096d5617715a", "tree": "0b4ef31edaec10ad8b87a36b66a853e5d0020675", "parents": [ "0cf975e16927fd70f34cee20d3856246c13bb4c8" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Fri Feb 08 15:00:43 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 15:33:32 2008 -0800" }, "message": "revert \"proc: fix the threaded proc self\"\n\nRevert commit c6caeb7c4544608e8ae62731334661fc396c7f85 (\"proc: fix the\nthreaded /proc/self\"), since Eric says \"The patch really is wrong.\nThere is at least one corner case in procps that cares.\"\n\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"Guillaume Chazarain\" \u003cguichaz@yahoo.fr\u003e\nCc: \"Pavel Emelyanov\" \u003cxemul@openvz.org\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "03a44825be987d720df854f63b2f7bd30e46bdde", "tree": "6ac01a425ff2201db972fd3b836efc9b0ab6eaec", "parents": [ "ec26e11740cdff8c3c8330ea235478704ffb4a71" ], "author": { "name": "Jan Engelhardt", "email": "jengelh@computergmbh.de", "time": "Fri Feb 08 04:21:19 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:38 2008 -0800" }, "message": "procfs: constify function pointer tables\n\nSigned-off-by: Jan Engelhardt \u003cjengelh@computergmbh.de\u003e\nAcked-by: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nAcked-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nAcked-By: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Bryan Wu \u003cbryan.wu@analog.com\u003e\nAcked-by: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c6caeb7c4544608e8ae62731334661fc396c7f85", "tree": "3afabe64dedd7bf7d0f88f7612e5f468c8d55c1d", "parents": [ "488e5bc4560d0b510c1ddc451c51a6cc14e3a930" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:18:35 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:24 2008 -0800" }, "message": "proc: fix the threaded /proc/self\n\nLong ago when the CLONE_THREAD support first went it someone thought it\nwould be wise to point /proc/self at /proc/\u003ctgid\u003e instead of /proc/\u003cpid\u003e.\n\nGiven that /proc/\u003ctgid\u003e can return information about a very different task\n(if enough things have been unshared) then our current process /proc/\u003ctgid\u003e\nseems blatantly wrong. So far I have yet to think up an example where the\ncurrent behavior would be advantageous, and I can see several places where\nit is seriously non-intuitive.\n\nWe may be stuck with the current broken behavior for backwards\ncompatibility reasons but lets try fixing our ancient bug for the 2.6.25\ntime frame and see if anyone screams.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"Guillaume Chazarain\" \u003cguichaz@yahoo.fr\u003e\nCc: \"Pavel Emelyanov\" \u003cxemul@openvz.org\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "488e5bc4560d0b510c1ddc451c51a6cc14e3a930", "tree": "0b0df343406ff47578280e01388fc997064c8aa9", "parents": [ "df5f8314ca30d6a76735748e5ba4ca9809c0f434" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:18:34 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:24 2008 -0800" }, "message": "proc: proper pidns handling for /proc/self\n\nCurrently if you access a /proc that is not mounted with your processes\ncurrent pid namespace /proc/self will point at a completely random task.\n\nThis patch fixes /proc/self to point to the current process if it is\navailable in the particular mount of /proc or to return -ENOENT if the\ncurrent process is not visible.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "df5f8314ca30d6a76735748e5ba4ca9809c0f434", "tree": "e0a6157b1666a320e69586a81c77a3fe83b36a2a", "parents": [ "a56d3fc74c0178c5f41c48315604d62cff4e746d" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:18:33 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:24 2008 -0800" }, "message": "proc: seqfile convert proc_pid_status to properly handle pid namespaces\n\nCurrently we possibly lookup the pid in the wrong pid namespace. So\nseq_file convert proc_pid_status which ensures the proper pid namespaces is\npassed in.\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: another build fix]\n[akpm@linux-foundation.org: s390 build fix]\n[akpm@linux-foundation.org: fix task_name() output]\n[akpm@linux-foundation.org: fix nommu build]\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Andrew Morgan \u003cmorgan@kernel.org\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.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": "a56d3fc74c0178c5f41c48315604d62cff4e746d", "tree": "a6049be18c706090b8c65dc4f6ff9398f880199d", "parents": [ "ee992744ea53db0a90c986fd0a70fbbf91e7f8bd" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:18:32 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:24 2008 -0800" }, "message": "seqfile convert proc_pid_statm\n\nThis conversion is just for code cleanliness, uniformity, and general safety.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\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": "ee992744ea53db0a90c986fd0a70fbbf91e7f8bd", "tree": "2d15727e92c407bb22c4842923cbfb2dfda82306", "parents": [ "be614086a4aff163d5aa0dc160638d1193b59cde" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:18:31 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:23 2008 -0800" }, "message": "proc: rewrite do_task_stat to correctly handle pid namespaces.\n\nCurrently (as pointed out by Oleg) do_task_stat has a race when calling\ntask_pid_nr_ns with the task exiting. In addition do_task_stat is not\ncurrently displaying information in the context of the pid namespace that\nmounted the /proc filesystem. So \"cut -d\u0027 \u0027 -f 1 /proc/\u003cpid\u003e/stat\" may not\nequal \u003cpid\u003e.\n\nThis patch fixes the problem by converting to a single_open seq_file show\nmethod. Getting the pid namespace from the filesystem superblock instead of\ncurrent, and simply using the the struct pid from the inode instead of\nattempting to get that same pid from the task.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\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": "be614086a4aff163d5aa0dc160638d1193b59cde", "tree": "f60781ec8485fa7c1a5324a9767ec762e38b7447", "parents": [ "94413d8807a3c511a3675be4ce27a4d16d6408ee" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Feb 08 04:18:30 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:23 2008 -0800" }, "message": "proc: implement proc_single_file_operations\n\nCurrently many /proc/pid files use a crufty precursor to the current seq_file\napi, and they don\u0027t have direct access to the pid_namespace or the pid of for\nwhich they are displaying data.\n\nSo implement proc_single_file_operations to make the seq_file routines easy to\nuse, and to give access to the full state of the pid of we are displaying data\nfor.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\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": "7766755a2f249e7e0dabc5255a0a3d151ff79821", "tree": "0f9d130d3f8107c77ed61b75f4745dc86e36d457", "parents": [ "195cf453d2c3d789cbe80e3735755f860c2fb222" ], "author": { "name": "Andrea Arcangeli", "email": "andrea@suse.de", "time": "Mon Feb 04 22:29:21 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:18 2008 -0800" }, "message": "Fix /proc dcache deadlock in do_exit\n\nThis patch fixes a sles9 system hang in start_this_handle from a customer\nwith some heavy workload where all tasks are waiting on kjournald to commit\nthe transaction, but kjournald waits on t_updates to go down to zero (it\nnever does).\n\nThis was reported as a lowmem shortage deadlock but when checking the debug\ndata I noticed the VM wasn\u0027t under pressure at all (well it was really\nunder vm pressure, because lots of tasks hanged in the VM prune_dcache\nmethods trying to flush dirty inodes, but no task was hanging in GFP_NOFS\nmode, the holder of the journal handle should have if this was a vm issue\nin the first place).\n\nNo task was apparently holding the leftover handle in the committing\ntransaction, so I deduced t_updates was stuck to 1 because a journal_stop\nwas never run by some path (this turned out to be correct). With a debug\npatch adding proper reverse links and stack trace logging in ext3 deployed\nin production, I found journal_stop is never run because\nmark_inode_dirty_sync is called inside release_task called by do_exit.\n(that was quite fun because I would have never thought about this\nsubtleness, I thought a regular path in ext3 had a bug and it forgot to\ncall journal_stop)\n\ndo_exit-\u003erelease_task-\u003emark_inode_dirty_sync-\u003eschedule() (will never\ncome back to run journal_stop)\n\nThe reason is that shrink_dcache_parent is racy by design (feature not\na bug) and it can do blocking I/O in some case, but the point is that\ncalling shrink_dcache_parent at the last stage of do_exit isn\u0027t safe\nfor self-reaping tasks.\n\nI guess the memory pressure of the unbalanced highmem system allowed\nto trigger this more easily.\n\nNow mainline doesn\u0027t have this line in iput (like sles9 has):\n\n \t if (inode-\u003ei_state \u0026 I_DIRTY_DELAYED)\n\t \t\t\tmark_inode_dirty_sync(inode);\n\nso it will probably not crash with ext3, but for example ext2 implements an\nI/O-blocking ext2_put_inode that will lead to similar screwups with\next2_free_blocks never coming back and it\u0027s definitely wrong to call\nblocking-IO paths inside do_exit. So this should fix a subtle bug in\nmainline too (not verified in practice though). The equivalent fix for\next3 is also not verified yet to fix the problem in sles9 but I don\u0027t have\ndoubt it will (it usually takes days to crash, so it\u0027ll take weeks to be\nsure).\n\nAn alternate fix would be to offload that work to a kernel thread, but I\ndon\u0027t think a reschedule for this is worth it, the vm should be able to\ncollect those entries for the synchronous release_task.\n\nSigned-off-by: Andrea Arcangeli \u003candrea@suse.de\u003e\nCc: Jan Kara \u003cjack@ucw.cz\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\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": "1e88328111aae3ea408f346763ba9f9bad71f876", "tree": "22be92057a7426ca5b6c8ee9b136bbc417c902a8", "parents": [ "304daa8132a95e998b6716d4b7bd8bd76aa152b2" ], "author": { "name": "Matt Mackall", "email": "mpm@selenic.com", "time": "Mon Feb 04 22:29:07 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:17 2008 -0800" }, "message": "maps4: make page monitoring /proc file optional\n\nMake /proc/ page monitoring configurable\n\nThis puts the following files under an embedded config option:\n\n/proc/pid/clear_refs\n/proc/pid/smaps\n/proc/pid/pagemap\n/proc/kpagecount\n/proc/kpageflags\n\n[akpm@linux-foundation.org: Kconfig fix]\nSigned-off-by: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "85863e475e59afb027b0113290e3796ee6020b7d", "tree": "047cc687b98c0261bd3c083f17c090fbf082355f", "parents": [ "a6198797cc3fd659b2d81cdf6bb6b9bba9cd93e9" ], "author": { "name": "Matt Mackall", "email": "mpm@selenic.com", "time": "Mon Feb 04 22:29:04 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:16 2008 -0800" }, "message": "maps4: add /proc/pid/pagemap interface\n\nThis interface provides a mapping for each page in an address space to its\nphysical page frame number, allowing precise determination of what pages are\nmapped and what pages are shared between processes.\n\nNew in this version:\n\n- headers gone again (as recommended by Dave Hansen and Alan Cox)\n- 64-bit entries (as per discussion with Andi Kleen)\n- swap pte information exported (from Dave Hansen)\n- page walker callback for holes (from Dave Hansen)\n- direct put_user I/O (as suggested by Rusty Russell)\n\nThis patch folds in cleanups and swap PTE support from Dave Hansen\n\u003chaveblue@us.ibm.com\u003e.\n\nSigned-off-by: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f248dcb34d7b7ac255db70071a20be9d9c6ad491", "tree": "ec7c7fb115e40b4a337af98a6f9f2ad5db9af1f0", "parents": [ "4752c369789250eafcd7813e11c8fb689235b0d2" ], "author": { "name": "Matt Mackall", "email": "mpm@selenic.com", "time": "Mon Feb 04 22:29:03 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:16 2008 -0800" }, "message": "maps4: move clear_refs code to task_mmu.c\n\nThis puts all the clear_refs code where it belongs and probably lets things\ncompile on MMU-less systems as well.\n\nSigned-off-by: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@goop.org\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "0c11b9428f619ab377c92eff2f160a834a6585dd" }