)]}' { "log": [ { "commit": "f7e4217b007d1f73e7e3cf10ba4fea4a608c603f", "tree": "9c3932bb871d4b6727dc588e4d6c9987637aaee5", "parents": [ "c9f4f06d3191bd91c1a081b54a6c8e913e7b8a83" ], "author": { "name": "Roman Zippel", "email": "zippel@linux-m68k.org", "time": "Wed May 09 02:35:17 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:56 2007 -0700" }, "message": "rename thread_info to stack\n\nThis finally renames the thread_info field in task structure to stack, so that\nthe assumptions about this field are gone and archs have more freedom about\nplacing the thread_info structure.\n\nNonbroken archs which have a proper thread pointer can do the access to both\ncurrent thread and task structure via a single pointer.\n\nIt\u0027ll allow for a few more cleanups of the fork code, from which e.g. ia64\ncould benefit.\n\nSigned-off-by: Roman Zippel \u003czippel@linux-m68k.org\u003e\n[akpm@linux-foundation.org: build fix]\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Ian Molton \u003cspyro@f2s.com\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nCc: Mikael Starvik \u003cstarvik@axis.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Yoshinori Sato \u003cysato@users.sourceforge.jp\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nCc: Greg Ungerer \u003cgerg@uclinux.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Kazumoto Kojima \u003ckkojima@rr.iij4u.or.jp\u003e\nCc: Richard Curnow \u003crc@rc0.org.uk\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCc: Miles Bader \u003cuclinux-v850@lsi.nec.co.jp\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e63340ae6b6205fef26b40a75673d1c9c0c8bb90", "tree": "8d3212705515edec73c3936bb9e23c71d34a7b41", "parents": [ "04c9167f91e309c9c4ea982992aa08e83b2eb42e" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Tue May 08 00:28:08 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue May 08 11:15:07 2007 -0700" }, "message": "header cleaning: don\u0027t include smp_lock.h when not used\n\nRemove includes of \u003clinux/smp_lock.h\u003e where it is not used/needed.\nSuggested by Al Viro.\n\nBuilds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,\nsparc64, and arm (all 59 defconfigs).\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e3222c4ecc649c4ae568e61dda9349482401b501", "tree": "d96614ef67d947a3dd8ab0929a4755bce9fdbcc1", "parents": [ "4fc75ff4816c3483b4b772b2f6cb3d8fd88ca547" ], "author": { "name": "Badari Pulavarty", "email": "pbadari@us.ibm.com", "time": "Tue May 08 00:25:21 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue May 08 11:15:00 2007 -0700" }, "message": "Merge sys_clone()/sys_unshare() nsproxy and namespace handling\n\nsys_clone() and sys_unshare() both makes copies of nsproxy and its associated\nnamespaces. But they have different code paths.\n\nThis patch merges all the nsproxy and its associated namespace copy/clone\nhandling (as much as possible). Posted on container list earlier for\nfeedback.\n\n- Create a new nsproxy and its associated namespaces and pass it back to\n caller to attach it to right process.\n\n- Changed all copy_*_ns() routines to return a new copy of namespace\n instead of attaching it to task-\u003ensproxy.\n\n- Moved the CAP_SYS_ADMIN checks out of copy_*_ns() routines.\n\n- Removed unnessary !ns checks from copy_*_ns() and added BUG_ON()\n just incase.\n\n- Get rid of all individual unshare_*_ns() routines and make use of\n copy_*_ns() instead.\n\n[akpm@osdl.org: cleanups, warning fix]\n[clg@fr.ibm.com: remove dup_namespaces() declaration]\n[serue@us.ibm.com: fix CONFIG_IPC_NS\u003dn, clone(CLONE_NEWIPC) retval]\n[akpm@linux-foundation.org: fix build with CONFIG_SYSVIPC\u003dn]\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: \u003ccontainers@lists.osdl.org\u003e\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.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": "50953fe9e00ebbeffa032a565ab2f08312d51a87", "tree": "9f95f56f0b51600959a76cd88ce17f6e9c7a98a3", "parents": [ "4b1d89290b62bb2db476c94c82cf7442aab440c8" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Sun May 06 14:50:16 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon May 07 12:12:57 2007 -0700" }, "message": "slab allocators: Remove SLAB_DEBUG_INITIAL flag\n\nI have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by\nSLAB.\n\nI think its purpose was to have a callback after an object has been freed\nto verify that the state is the constructor state again? The callback is\nperformed before each freeing of an object.\n\nI would think that it is much easier to check the object state manually\nbefore the free. That also places the check near the code object\nmanipulation of the object.\n\nAlso the SLAB_DEBUG_INITIAL callback is only performed if the kernel was\ncompiled with SLAB debugging on. If there would be code in a constructor\nhandling SLAB_DEBUG_INITIAL then it would have to be conditional on\nSLAB_DEBUG otherwise it would just be dead code. But there is no such code\nin the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real\nuse of, difficult to understand and there are easier ways to accomplish the\nsame effect (i.e. add debug code before kfree).\n\nThere is a related flag SLAB_CTOR_VERIFY that is frequently checked to be\nclear in fs inode caches. Remove the pointless checks (they would even be\npointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors.\n\nThis is the last slab flag that SLUB did not support. Remove the check for\nunimplemented flags from SLUB.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d6dd61c831226f9cd7750885da04d360d6455101", "tree": "30f84a429821d207f7de5dd6225d3d9515042c0a", "parents": [ "5311ab62cdc7788784971ed816ce85e926f3e994" ], "author": { "name": "Jeremy Fitzhardinge", "email": "jeremy@goop.org", "time": "Wed May 02 19:27:14 2007 +0200" }, "committer": { "name": "Andi Kleen", "email": "andi@basil.nowhere.org", "time": "Wed May 02 19:27:14 2007 +0200" }, "message": "[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction\n\nAdd hooks to allow a paravirt implementation to track the lifetime of\nan mm. Paravirtualization requires three hooks, but only two are\nneeded in common code. They are:\n\narch_dup_mmap, which is called when a new mmap is created at fork\n\narch_exit_mmap, which is called when the last process reference to an\n mm is dropped, which typically happens on exit and exec.\n\nThe third hook is activate_mm, which is called from the arch-specific\nactivate_mm() macro/function, and so doesn\u0027t need stub versions for\nother architectures. It\u0027s called when an mm is first used.\n\nSigned-off-by: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nCc: linux-arch@vger.kernel.org\nCc: James Bottomley \u003cJames.Bottomley@SteelEye.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e29e175b0f40cffc86068156733def14a7a533ab", "tree": "563204ffd4c548f2ea5773f14259afd60ecfc212", "parents": [ "35ae834fa02ba89cfbd4a80892c0e458fd6d5c0b" ], "author": { "name": "Zilvinas Valinskas", "email": "zilvinas@wilibox.com", "time": "Fri Mar 16 13:38:34 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Mar 16 19:25:06 2007 -0700" }, "message": "[PATCH] initialise pi_lock if CONFIG_RT_MUTEXES\u003dN\n\nFixes a bogus lockdep warning which causes lockdep to disable itself.\n\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c9cb2e3d7c9178ab75d0942f96abb3abe0369906", "tree": "2d4a5470ece5efe82463653678c491c2f249d560", "parents": [ "fd064b9b7770d5c7705bf9542950c7bd81c30f98" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Feb 16 01:27:49 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 16 08:13:58 2007 -0800" }, "message": "[PATCH] hrtimers: namespace and enum cleanup\n\n- hrtimers did not use the hrtimer_restart enum and relied on the implict\n int representation. Fix the prototypes and the functions using the enums.\n- Use seperate name spaces for the enumerations\n- Convert hrtimer_restart macro to inline function\n- Add comments\n\nNo functional changes.\n\n[akpm@osdl.org: fix input driver]\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nCc: Dmitry Torokhov \u003cdtor@mail.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ab521dc0f8e117fd808d3e425216864d60390500", "tree": "f9d6449c4d8c9508fd43edfe845108043e1536b2", "parents": [ "3e7cd6c413c9e6fbb5e1ee2acdadb4ababd2d474" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Feb 12 00:53:00 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Feb 12 09:48:32 2007 -0800" }, "message": "[PATCH] tty: update the tty layer to work with struct pid\n\nOf kernel subsystems that work with pids the tty layer is probably the largest\nconsumer. But it has the nice virtue that the assiation with a session only\nlasts until the session leader exits. Which means that no reference counting\nis required. So using struct pid winds up being a simple optimization to\navoid hash table lookups.\n\nIn the long term the use of pid_nr also ensures that when we have multiple pid\nspaces mixed everything will work correctly.\n\nSigned-off-by: Eric W. Biederman \u003ceric@maxwell.lnxi.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\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": "4b98d11b40f03382918796f3c5c936d5495d20a4", "tree": "616b7260196c9bd0eaf208ef8fab91fcf9efcece", "parents": [ "18f705f49a5b19206233f7cef8f869ce7291f8c8" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Sat Feb 10 01:46:45 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 11:18:07 2007 -0800" }, "message": "[PATCH] ifdef -\u003erchar, -\u003ewchar, -\u003esyscr, -\u003esyscw from task_struct\n\nThey are fat: 4x8 bytes in task_struct.\nThey are uncoditionally updated in every fork, read, write and sendfile.\nThey are used only if you have some \"extended acct fields feature\".\n\nAnd please, please, please, read(2) knows about bytes, not characters,\nwhy it is called \"rchar\"?\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Jay Lan \u003cjlan@engr.sgi.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9abcf40b1d1443e6f0ef86e6a822193142a34abc", "tree": "054b522b1e5ef7cb3d3f87985aba1d25a5d7f050", "parents": [ "fc2dd2e51a1940acac665696e6a70a1a73dc90a4" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Thu Feb 01 13:52:48 2007 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Feb 01 16:17:06 2007 -0800" }, "message": "[PATCH] fork_idle() should be __cpuinit, not __devinit\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "444f378b237a0f728f5c4aba752c08d13c209344", "tree": "248fd00bb2e60cb0890fce38b6a66fed65f977e4", "parents": [ "8c8c4bafc3a20a6fb9078315ff865bc42276f9ba" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Jan 30 13:35:18 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Jan 30 13:35:18 2007 -0800" }, "message": "Revert \"[PATCH] namespaces: fix exit race by splitting exit\"\n\nThis reverts commit 7a238fcba0629b6f2edbcd37458bae56fcf36be5 in\npreparation for a better and simpler fix proposed by Eric Biederman\n(and fixed up by Serge Hallyn)\n\nAcked-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7a238fcba0629b6f2edbcd37458bae56fcf36be5", "tree": "ad556f0ec00637df5b4c4a2063c6b3325666d2f1", "parents": [ "c0d4d573feed199b16094c072e7cb07afb01c598" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Mon Jan 29 13:19:40 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Jan 30 08:26:44 2007 -0800" }, "message": "[PATCH] namespaces: fix exit race by splitting exit\n\nFix exit race by splitting the nsproxy putting into two pieces. First\npiece reduces the nsproxy refcount. If we dropped the last reference, then\nit puts the mnt_ns, and returns the nsproxy as a hint to the caller. Else\nit returns NULL. The second piece of exiting task namespaces sets\ntsk-\u003ensproxy to NULL, and drops the references to other namespaces and\nfrees the nsproxy only if an nsproxy was passed in.\n\nA little awkward and should probably be reworked, but hopefully it fixes\nthe NFS oops.\n\nSigned-off-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Daniel Hokka Zakrisson \u003cdaniel@hozac.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ec8c0446b6e2b67b5c8813eb517f4bf00efa99a9", "tree": "e7c12d7c486c958a5e38888b41cfcd6a558f1aff", "parents": [ "bcd022801ee514e28c32837f0b3ce18c775f1a7b" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Tue Dec 12 17:14:57 2006 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Wed Dec 13 09:27:08 2006 -0800" }, "message": "[PATCH] Optimize D-cache alias handling on fork\n\nVirtually index, physically tagged cache architectures can get away\nwithout cache flushing when forking. This patch adds a new cache\nflushing function flush_cache_dup_mm(struct mm_struct *) which for the\nmoment I\u0027ve implemented to do the same thing on all architectures\nexcept on MIPS where it\u0027s a no-op.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4fd45812cbe875a620c86a096a5d46c742694b7e", "tree": "8d2c99caa718da6cda87229076adf708494ff251", "parents": [ "bbea9f69668a3d0cf9feba15a724cd02896f8675" ], "author": { "name": "Vadim Lobanov", "email": "vlobanov@speakeasy.net", "time": "Sun Dec 10 02:21:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Sun Dec 10 09:57:22 2006 -0800" }, "message": "[PATCH] fdtable: Remove the free_files field\n\nAn fdtable can either be embedded inside a files_struct or standalone (after\nbeing expanded). When an fdtable is being discarded after all RCU references\nto it have expired, we must either free it directly, in the standalone case,\nor free the files_struct it is contained within, in the embedded case.\n\nCurrently the free_files field controls this behavior, but we can get rid of\nit entirely, as all the necessary information is already recorded. We can\ndistinguish embedded and standalone fdtables using max_fds, and if it is\nembedded we can divine the relevant files_struct using container_of().\n\nSigned-off-by: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bbea9f69668a3d0cf9feba15a724cd02896f8675", "tree": "bc58506e4daba4a04309181a5501ae4eb5424783", "parents": [ "f3d19c90fb117a5f080310a4592929aa8e1ad8e9" ], "author": { "name": "Vadim Lobanov", "email": "vlobanov@speakeasy.net", "time": "Sun Dec 10 02:21:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Sun Dec 10 09:57:22 2006 -0800" }, "message": "[PATCH] fdtable: Make fdarray and fdsets equal in size\n\nCurrently, each fdtable supports three dynamically-sized arrays of data: the\nfdarray and two fdsets. The code allows the number of fds supported by the\nfdarray (fdtable-\u003emax_fds) to differ from the number of fds supported by each\nof the fdsets (fdtable-\u003emax_fdset).\n\nIn practice, it is wasteful for these two sizes to differ: whenever we hit a\nlimit on the smaller-capacity structure, we will reallocate the entire fdtable\nand all the dynamic arrays within it, so any delta in the memory used by the\nlarger-capacity structure will never be touched at all.\n\nRather than hogging this excess, we shouldn\u0027t even allocate it in the first\nplace, and keep the capacities of the fdarray and the fdsets equal. This\npatch removes fdtable-\u003emax_fdset. As an added bonus, most of the supporting\ncode becomes simpler.\n\nSigned-off-by: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f3d19c90fb117a5f080310a4592929aa8e1ad8e9", "tree": "80dee984c0b9f06d458257e54dc7742c981d2b05", "parents": [ "5eb6c7a2ab413dea1ee6c08dd58263a1c2c2efa3" ], "author": { "name": "Vadim Lobanov", "email": "vlobanov@speakeasy.net", "time": "Sun Dec 10 02:21:09 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Sun Dec 10 09:57:21 2006 -0800" }, "message": "[PATCH] fdtable: Delete pointless code in dup_fd()\n\nThe dup_fd() function creates a new files_struct and fdtable embedded inside\nthat files_struct, and then possibly expands the fdtable using expand_files().\n\nThe out_release error path is invoked when expand_files() returns an error\ncode. However, when this attempt to expand fails, the fdtable is left in its\noriginal embedded form, so it is pointless to try to free the associated\nfdarray and fdsets.\n\nSigned-off-by: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nCc: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7c3ab7381e79dfc7db14a67c6f4f3285664e1ec2", "tree": "de5d63d17e400eb06b26c88adfd2ef2cf290898e", "parents": [ "47694bb86af3648d4ec34c7afd46653cefc9b359" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sun Dec 10 02:19:19 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Sun Dec 10 09:55:41 2006 -0800" }, "message": "[PATCH] io-accounting: core statistics\n\nThe present per-task IO accounting isn\u0027t very useful. It simply counts the\nnumber of bytes passed into read() and write(). So if a process reads 1MB\nfrom an already-cached file, it is accused of having performed 1MB of I/O,\nwhich is wrong.\n\n(David Wright had some comments on the applicability of the present logical IO accounting:\n\n For billing purposes it is useless but for workload analysis it is very\n useful\n\n read_bytes/read_calls average read request size\n write_bytes/write_calls average write request size\n\n read_bytes/read_blocks ie logical/physical can indicate hit rate or thrashing\n write_bytes/write_blocks ie logical/physical guess since pdflush writes can\n be missed\n\n I often look for logical larger than physical to see filesystem cache\n problems. And the bytes/cpusec can help find applications that are\n dominating the cache and causing slow interactive response from page cache\n contention.\n\n I want to find the IO intensive applications and make sure they are doing\n efficient IO. Thus the acctcms(sysV) or csacms command would give the high\n IO commands).\n\nThis patchset adds new accounting which tries to be more accurate. We account\nfor three things:\n\nreads:\n\n attempt to count the number of bytes which this process really did cause\n to be fetched from the storage layer. Done at the submit_bio() level, so it\n is accurate for block-backed filesystems. I also attempt to wire up NFS and\n CIFS.\n\nwrites:\n\n attempt to count the number of bytes which this process caused to be sent\n to the storage layer. This is done at page-dirtying time.\n\n The big inaccuracy here is truncate. If a process writes 1MB to a file\n and then deletes the file, it will in fact perform no writeout. But it will\n have been accounted as having caused 1MB of write.\n\n So...\n\ncancelled_writes:\n\n account the number of bytes which this process caused to not happen, by\n truncating pagecache.\n\n We _could_ just subtract this from the process\u0027s `write\u0027 accounting. But\n that means that some processes would be reported to have done negative\n amounts of write IO, which is silly.\n\n So we just report the raw number and punt this decision up to userspace.\n\nNow, we _could_ account for writes at the physical I/O level. But\n\n- This would require that we track memory-dirtying tasks at the per-page\n level (would require a new pointer in struct page).\n\n- It would mean that IO statistics for a process are usually only available\n long after that process has exitted. Which means that we probably cannot\n communicate this info via taskstats.\n\nThis patch:\n\nWire up the kernel-private data structures and the accessor functions to\nmanipulate them.\n\nCc: Jay Lan \u003cjlan@sgi.com\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Chris Sturtivant \u003ccsturtiv@sgi.com\u003e\nCc: Tony Ernst \u003ctee@sgi.com\u003e\nCc: Guillaume Thouvenin \u003cguillaume.thouvenin@bull.net\u003e\nCc: David Wright \u003cdaw@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6b3286ed1169d74fea401367d6d4d6c6ec758a81", "tree": "faf5beddb797875bb92855f8606735478267959a", "parents": [ "1ec320afdc9552c92191d5f89fcd1ebe588334ca" ], "author": { "name": "Kirill Korotaev", "email": "dev@sw.ru", "time": "Fri Dec 08 02:37:56 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:51 2006 -0800" }, "message": "[PATCH] rename struct namespace to struct mnt_namespace\n\nRename \u0027struct namespace\u0027 to \u0027struct mnt_namespace\u0027 to avoid confusion with\nother namespaces being developped for the containers : pid, uts, ipc, etc.\n\u0027namespace\u0027 variables and attributes are also renamed to \u0027mnt_ns\u0027\n\nSigned-off-by: Kirill Korotaev \u003cdev@sw.ru\u003e\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1ec320afdc9552c92191d5f89fcd1ebe588334ca", "tree": "e526fb29f9487f1ea34aa9ccdf14c318aea2159f", "parents": [ "937949d9edbf4049bd41af6c9f92c26280584564" ], "author": { "name": "Cedric Le Goater", "email": "clg@fr.ibm.com", "time": "Fri Dec 08 02:37:55 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:51 2006 -0800" }, "message": "[PATCH] add process_session() helper routine: deprecate old field\n\nAdd an anonymous union and ((deprecated)) to catch direct usage of the\nsession field.\n\n[akpm@osdl.org: fix various missed conversions]\n[jdike@addtoit.com: fix UML bug]\nSigned-off-by: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "937949d9edbf4049bd41af6c9f92c26280584564", "tree": "d0a28f503b082f890cfa1f7fe952fda8fc771752", "parents": [ "ef55d53caa055aedee13e77da82740987dd64f2d" ], "author": { "name": "Cedric Le Goater", "email": "clg@fr.ibm.com", "time": "Fri Dec 08 02:37:54 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:51 2006 -0800" }, "message": "[PATCH] add process_session() helper routine\n\nReplace occurences of task-\u003esignal-\u003esession by a new process_session() helper\nroutine.\n\nIt will be useful for pid namespaces to abstract the session pid number.\n\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f3a43f3f64bff8e205c3702f6b4804d66e306848", "tree": "355a340fa26d3b72aa967119a6948ff45d46a0d0", "parents": [ "c941192aafe053ae445fb22f5d89bd34794c5442" ], "author": { "name": "Josef \"Jeff\" Sipek", "email": "jsipek@cs.sunysb.edu", "time": "Fri Dec 08 02:36:43 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:42 2006 -0800" }, "message": "[PATCH] kernel: change uses of f_{dentry, vfsmnt} to use f_path\n\nChange all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in\nlinux/kernel/.\n\nSigned-off-by: Josef \"Jeff\" Sipek \u003cjsipek@cs.sunysb.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dae3c5a0b7052ad7dd9fa78c51ecfab828c5007b", "tree": "fea5f0ac63b3b14641593e0c38634829719ff95c", "parents": [ "ae424ae4b5bcd820ad6ee6f0b986c4e14ed4d6cf" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Dec 08 02:36:09 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:38 2006 -0800" }, "message": "[PATCH] sys_unshare: remove a broken CLONE_SIGHAND code\n\nsys_unshare(CLONE_SIGHAND) is broken, the code under \u0027if (new_sigh)\u0027 is\nnever executed but very wrong. Just remove it to avoid a confusion,\ntask_lock() has nothing to do with -\u003esighand changing.\n\nAlso, change the comment in unshare_sighand(). Yes, CLONE_THREAD implies\nCLONE_SIGHAND, but still it looks confusing. Also, we don\u0027t need to check\ncurrent-\u003esighand !\u003d NULL.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4522d58275f124105819723e24e912c8e5bf3cdd", "tree": "b92c29014fadffe049c1925676037f0092b8d112", "parents": [ "6cf24f031bc97cb5a7c9df3b6e73c45b628b2b28", "64a26a731235b59c9d73bbe82c1f896d57400d37" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:59:11 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:59:11 2006 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://one.firstfloor.org/home/andi/git/linux-2.6\n\n* \u0027for-linus\u0027 of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)\n [PATCH] x86-64: Export smp_call_function_single\n [PATCH] i386: Clean up smp_tune_scheduling()\n [PATCH] unwinder: move .eh_frame to RODATA\n [PATCH] unwinder: fully support linker generated .eh_frame_hdr section\n [PATCH] x86-64: don\u0027t use set_irq_regs()\n [PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq\n [PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM\n [PATCH] i386: replace kmalloc+memset with kzalloc\n [PATCH] x86-64: remove remaining pc98 code\n [PATCH] x86-64: remove unused variable\n [PATCH] x86-64: Fix constraints in atomic_add_return()\n [PATCH] x86-64: fix asm constraints in i386 atomic_add_return\n [PATCH] x86-64: Correct documentation for bzImage protocol v2.05\n [PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code\n [PATCH] x86-64: Fix numaq build error\n [PATCH] x86-64: include/asm-x86_64/cpufeature.h isn\u0027t a userspace header\n [PATCH] unwinder: Add debugging output to the Dwarf2 unwinder\n [PATCH] x86-64: Clarify error message in GART code\n [PATCH] x86-64: Fix interrupt race in idle callback (3rd try)\n [PATCH] x86-64: Remove unwind stack pointer alignment forcing again\n ...\n\nFixed conflict in include/linux/uaccess.h manually\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "34ec12349c8a9505adc59d72f92b4595bc2483ff", "tree": "2307c825f1a0d8bf9976d5fadcc8516ad5829eac", "parents": [ "115085ea0794c0f339be8f9d25505c7f9861d824" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed Dec 06 20:36:52 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:34 2006 -0800" }, "message": "[PATCH] taskstats: cleanup -\u003esignal-\u003estats allocation\n\nAllocate -\u003esignal-\u003estats on demand in taskstats_exit(), this allows us to\nremove taskstats_tgid_alloc() (the last non-trivial inline) from taskstat\u0027s\npublic interface.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nCc: Jay Lan \u003cjlan@engr.sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fec1d0115240593b39898289e6e1413ea6e44a84", "tree": "9e0c5506118a5fb84d1b21195323dd1c3d7588ea", "parents": [ "736c4b8572ac24b1e6fd58d00872305a120ac700" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Wed Dec 06 20:36:34 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:33 2006 -0800" }, "message": "[PATCH] Disable CLONE_CHILD_CLEARTID for abnormal exit\n\nThe CLONE_CHILD_CLEARTID flag is used by NPTL to have its threads\ncommunicate via memory/futex when they exit, so pthread_join can\nsynchronize using a simple futex wait. The word of user memory where NPTL\nstores a thread\u0027s own TID is what it passes; this gets reset to zero at\nthread exit.\n\nIt is not desireable to touch this user memory when threads are dying due\nto a fatal signal. A core dump is more usefully representative of the\ndying program state if the threads live at the time of the crash have their\nNPTL data structures unperturbed. The userland expectation of\nCLONE_CHILD_CLEARTID has only ever been that it works for a thread making\nan _exit system call.\n\nThis problem was identified by Ernie Petrides \u003cpetrides@redhat.com\u003e.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ernie Petrides \u003cpetrides@redhat.com\u003e\nCc: Jakub Jelinek \u003cjakub@redhat.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e18b890bb0881bbab6f4f1a6cd20d9c60d66b003", "tree": "4828be07e1c24781c264b42c5a75bcd968223c3f", "parents": [ "441e143e95f5aa1e04026cb0aa71c801ba53982f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Dec 06 20:33:20 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:25 2006 -0800" }, "message": "[PATCH] slab: remove kmem_cache_t\n\nReplace all uses of kmem_cache_t with struct kmem_cache.\n\nThe patch was generated using the following script:\n\n\t#!/bin/sh\n\t#\n\t# Replace one string by another in all the kernel sources.\n\t#\n\n\tset -e\n\n\tfor file in `find * -name \"*.c\" -o -name \"*.h\"|xargs grep -l $1`; do\n\t\tquilt add $file\n\t\tsed -e \"1,\\$s/$1/$2/g\" $file \u003e/tmp/$$\n\t\tmv /tmp/$$ $file\n\t\tquilt refresh\n\tdone\n\nThe script was run like this\n\n\tsh replace kmem_cache_t \"struct kmem_cache\"\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e94b1766097d53e6f3ccfb36c8baa562ffeda3fc", "tree": "93fa0a8ab84976d4e89c50768ca8b8878d642a0d", "parents": [ "54e6ecb23951b195d02433a741c7f7cb0b796c78" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Dec 06 20:33:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:24 2006 -0800" }, "message": "[PATCH] slab: remove SLAB_KERNEL\n\nSLAB_KERNEL is an alias of GFP_KERNEL.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7602bdf2fd14a40dd9b104e516fdc05e1bd17952", "tree": "5ca703b0a95f6f2e6d977c816532b9085f453974", "parents": [ "098fe651f7e9d759d1117c78c1a642b9b3945922" ], "author": { "name": "Ashwin Chaugule", "email": "ashwin.chaugule@celunite.com", "time": "Wed Dec 06 20:31:57 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:21 2006 -0800" }, "message": "[PATCH] new scheme to preempt swap token\n\nThe new swap token patches replace the current token traversal algo. The old\nalgo had a crude timeout parameter that was used to handover the token from\none task to another. This algo, transfers the token to the tasks that are in\nneed of the token. The urgency for the token is based on the number of times\na task is required to swap-in pages. Accordingly, the priority of a task is\nincremented if it has been badly affected due to swap-outs. To ensure that\nthe token doesnt bounce around rapidly, the token holders are given a priority\nboost. The priority of tasks is also decremented, if their rate of swap-in\u0027s\nkeeps reducing. This way, the condition to check whether to pre-empt the swap\ntoken, is a matter of comparing two task\u0027s priority fields.\n\n[akpm@osdl.org: cleanups]\nSigned-off-by: Ashwin Chaugule \u003cashwin.chaugule@celunite.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f95d47caae5302a63d92be9a0292abc90e2a14e1", "tree": "cfa963975d104c56aba28df6c941759175ed4b98", "parents": [ "62111195800d80c66cdc69063ea3145878c99fbf" ], "author": { "name": "Jeremy Fitzhardinge", "email": "jeremy@goop.org", "time": "Thu Dec 07 02:14:02 2006 +0100" }, "committer": { "name": "Andi Kleen", "email": "andi@basil.nowhere.org", "time": "Thu Dec 07 02:14:02 2006 +0100" }, "message": "[PATCH] i386: Use %gs as the PDA base-segment in the kernel\n\nThis patch is the meat of the PDA change. This patch makes several related\nchanges:\n\n1: Most significantly, %gs is now used in the kernel. This means that on\n entry, the old value of %gs is saved away, and it is reloaded with\n __KERNEL_PDA.\n\n2: entry.S constructs the stack in the shape of struct pt_regs, and this\n is passed around the kernel so that the process\u0027s saved register\n state can be accessed.\n\n Unfortunately struct pt_regs doesn\u0027t currently have space for %gs\n (or %fs). This patch extends pt_regs to add space for gs (no space\n is allocated for %fs, since it won\u0027t be used, and it would just\n complicate the code in entry.S to work around the space).\n\n3: Because %gs is now saved on the stack like %ds, %es and the integer\n registers, there are a number of places where it no longer needs to\n be handled specially; namely context switch, and saving/restoring the\n register state in a signal context.\n\n4: And since kernel threads run in kernel space and call normal kernel\n code, they need to be created with their %gs \u003d\u003d __KERNEL_PDA.\n\nSigned-off-by: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nCc: Chuck Ebbert \u003c76306.1226@compuserve.com\u003e\nCc: Zachary Amsden \u003czach@vmware.com\u003e\nCc: Jan Beulich \u003cjbeulich@novell.com\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\n" }, { "commit": "753ca4f312a4b26940e4731b4fa5dbbbbcc77e97", "tree": "bf0ca9aa882e50b681ec72e43998542472752ef6", "parents": [ "a1b26c32af51d0fd82754bc06b495dd03c2f2d58" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Sat Nov 25 11:09:34 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Sat Nov 25 13:28:34 2006 -0800" }, "message": "[PATCH] fix copy_process() error check\n\nThe return value of copy_process() should be checked by IS_ERR().\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9a3a04ac386f44175b6a4142eaeab3d4170a57f3", "tree": "b07590ec50da7d079b1c2852ccc79cbcd8fb2cce", "parents": [ "dc791d479802a784836a236d4a77a5325be545c4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Tue Nov 14 15:20:51 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Tue Nov 14 15:20:51 2006 -0800" }, "message": "Revert \"[PATCH] fix Data Acess error in dup_fd\"\n\nThis reverts commit 0130b0b32ee53dc7add773fcea984f6a26ef1da3.\n\nSergey Vlasov points out (and Vadim Lobanov concurs) that the bug it was\nsupposed to fix must be some unrelated memory corruption, and the \"fix\"\nactually causes more problems:\n\n \"However, the new code does not look safe in all cases. If some other\n task has opened more files while dup_fd() released oldf-\u003efile_lock, the\n new code will update open_files to the new larger value. But newf was\n allocated with the old smaller value of open_files, therefore subsequent\n accesses to newf may try to write into unallocated memory.\"\n\nso revert it.\n\nCc: Sharyathi Nagesh \u003csharyath@in.ibm.com\u003e\nCc: Sergey Vlasov \u003cvsu@altlinux.ru\u003e\nCc: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nCc: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0130b0b32ee53dc7add773fcea984f6a26ef1da3", "tree": "2a4920ab222bf2cfa24e0b25522478120bd51afe", "parents": [ "5fd934a9a1b72c718ad5c388fd2e0fd90486cbf3" ], "author": { "name": "Sharyathi Nagesh", "email": "sharyath@in.ibm.com", "time": "Fri Nov 10 12:27:54 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 13 07:40:43 2006 -0800" }, "message": "[PATCH] fix Data Acess error in dup_fd\n\nOn running the Stress Test on machine for more than 72 hours following\nerror message was observed.\n\n0:mon\u003e e\ncpu 0x0: Vector: 300 (Data Access) at [c00000007ce2f7f0]\n pc: c000000000060d90: .dup_fd+0x240/0x39c\n lr: c000000000060d6c: .dup_fd+0x21c/0x39c\n sp: c00000007ce2fa70\n msr: 800000000000b032\n dar: ffffffff00000028\n dsisr: 40000000\n current \u003d 0xc000000074950980\n paca \u003d 0xc000000000454500\n pid \u003d 27330, comm \u003d bash\n\n0:mon\u003e t\n[c00000007ce2fa70] c000000000060d28 .dup_fd+0x1d8/0x39c (unreliable)\n[c00000007ce2fb30] c000000000060f48 .copy_files+0x5c/0x88\n[c00000007ce2fbd0] c000000000061f5c .copy_process+0x574/0x1520\n[c00000007ce2fcd0] c000000000062f88 .do_fork+0x80/0x1c4\n[c00000007ce2fdc0] c000000000011790 .sys_clone+0x5c/0x74\n[c00000007ce2fe30] c000000000008950 .ppc_clone+0x8/0xc\n\nThe problem is because of race window. When if(expand) block is executed in\ndup_fd unlocking of oldf-\u003efile_lock give a window for fdtable in oldf to be\nmodified. So actual open_files in oldf may not match with open_files\nvariable.\n\nCc: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b8534d7bd89df0cd41cd47bcd6733a05ea9a691a", "tree": "c4650f417d7f05a9c645d6a0b1f64405ec4c8a39", "parents": [ "17b02695b254aa2ef0e53df9c8e6548f86e66a9d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sat Oct 28 10:38:53 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 28 11:30:54 2006 -0700" }, "message": "[PATCH] taskstats: kill -\u003etaskstats_lock in favor of -\u003esiglock\n\nsignal_struct is (mostly) protected by -\u003esighand-\u003esiglock, I think we don\u0027t\nneed -\u003etaskstats_lock to protect -\u003estats. This also allows us to simplify the\nlocking in fill_tgid().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Jay Lan \u003cjlan@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "093a8e8aecd77b2799934996a55a6838e1e2b8f3", "tree": "ece87b2e194494059b2d4aaa43a094786dac1db7", "parents": [ "05d5bcd60e8202e5c7b28cf61186043a4d612623" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sat Oct 28 10:38:51 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 28 11:30:54 2006 -0700" }, "message": "[PATCH] taskstats_tgid_free: fix usage\n\ntaskstats_tgid_free() is called on copy_process\u0027s error path. This is wrong.\n\n\tIF (clone_flags \u0026 CLONE_THREAD)\n\t\tWe should not clear -\u003esignal-\u003etaskstats, current uses it,\n\t\tit probably has a valid accumulated info.\n\tELSE\n\t\ttaskstats_tgid_init() set -\u003esignal-\u003etaskstats \u003d NULL,\n\t\tthere is nothing to free.\n\nMove the callsite to __exit_signal(). We don\u0027t need any locking, entire\nthread group is exiting, nobody should have a reference to soon to be\nreleased -\u003esignal.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Jay Lan \u003cjlan@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bea493a031fe3337f4fe5479e8e865513828ea76", "tree": "e8876149b729076e0104b59f387e615dcd2e7a76", "parents": [ "91b943ee4afa2037678dc1db30b89baef0e17090" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 17 00:10:33 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 17 08:18:48 2006 -0700" }, "message": "[PATCH] rt-mutex: fixup rt-mutex debug code\n\nBUG: warning at kernel/rtmutex-debug.c:125/rt_mutex_debug_task_free() (Not tainted)\n [\u003cc04051e3\u003e] show_trace_log_lvl+0x58/0x16a\n [\u003cc04057f0\u003e] show_trace+0xd/0x10\n [\u003cc0405900\u003e] dump_stack+0x19/0x1b\n [\u003cc043f03d\u003e] rt_mutex_debug_task_free+0x35/0x6a\n [\u003cc04224c0\u003e] free_task+0x15/0x24\n [\u003cc042378c\u003e] copy_process+0x12bd/0x1324\n [\u003cc0423835\u003e] do_fork+0x42/0x113\n [\u003cc04021dd\u003e] sys_fork+0x19/0x1b\n [\u003cc0403fb7\u003e] syscall_call+0x7/0xb\n\nIn copy_process(), dup_task_struct() also duplicates the -\u003epi_lock,\n-\u003epi_waiters and -\u003epi_blocked_on members. rt_mutex_debug_task_free()\ncalled from free_task() validates these members. However free_task() can\nbe invoked before these members are reset for the new task.\n\nMove the initialization code before the first bail that can hit free_task().\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "73ea41302bab5e02c9e86ab15c509494a550f1db", "tree": "10971a839dd53a9e18d6c866c9be93517fe8de25", "parents": [ "25b21cb2f6d69b0475b134e0a3e8e269137270fa" ], "author": { "name": "Kirill Korotaev", "email": "dev@openvz.org", "time": "Mon Oct 02 02:18:20 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:22 2006 -0700" }, "message": "[PATCH] IPC namespace - utils\n\nThis patch adds basic IPC namespace functionality to\nIPC utils:\n- init_ipc_ns\n- copy/clone/unshare/free IPC ns\n- /proc preparations\n\nSigned-off-by: Pavel Emelianov \u003cxemul@openvz.org\u003e\nSigned-off-by: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "25b21cb2f6d69b0475b134e0a3e8e269137270fa", "tree": "cd9c3966408c0ca5903249437c35ff35961de544", "parents": [ "c0b2fc316599d6cd875b6b8cafa67f03b9512b4d" ], "author": { "name": "Kirill Korotaev", "email": "dev@openvz.org", "time": "Mon Oct 02 02:18:19 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:22 2006 -0700" }, "message": "[PATCH] IPC namespace core\n\nThis patch set allows to unshare IPCs and have a private set of IPC objects\n(sem, shm, msg) inside namespace. Basically, it is another building block of\ncontainers functionality.\n\nThis patch implements core IPC namespace changes:\n- ipc_namespace structure\n- new config option CONFIG_IPC_NS\n- adds CLONE_NEWIPC flag\n- unshare support\n\n[clg@fr.ibm.com: small fix for unshare of ipc namespace]\n[akpm@osdl.org: build fix]\nSigned-off-by: Pavel Emelianov \u003cxemul@openvz.org\u003e\nSigned-off-by: Kirill Korotaev \u003cdev@openvz.org\u003e\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c0b2fc316599d6cd875b6b8cafa67f03b9512b4d", "tree": "6e03101b6692dfe3284de05a5f4fd5495d513ab3", "parents": [ "071df104f808b8195c40643dcb4d060681742e29" ], "author": { "name": "Serge Hallyn", "email": "serue@us.ibm.com", "time": "Mon Oct 02 02:18:18 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:22 2006 -0700" }, "message": "[PATCH] uts: copy nsproxy only when needed\n\nThe nsproxy was being copied in unshare() when anything was being unshared,\neven if it was something not referenced from nsproxy. This should end up\nin some cases with far more memory usage than necessary.\n\nSigned-off-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Andrey Savochkin \u003csaw@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "071df104f808b8195c40643dcb4d060681742e29", "tree": "e5c3355e526e0182797d59c7e80062fbc2bb7d77", "parents": [ "bf47fdcda65b44dbd674eeedcaa06e0aa28a5a00" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Mon Oct 02 02:18:17 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:22 2006 -0700" }, "message": "[PATCH] namespaces: utsname: implement CLONE_NEWUTS flag\n\nImplement a CLONE_NEWUTS flag, and use it at clone and sys_unshare.\n\n[clg@fr.ibm.com: IPC unshare fix]\n[bunk@stusta.de: cleanup]\nSigned-off-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Andrey Savochkin \u003csaw@sw.ru\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1651e14e28a2d9f446018ef522882e0709a2ce4f", "tree": "401ff78624fdc4b445f3f95174a223acaf6a4ca0", "parents": [ "0437eb594e6e5e699248f865482e61034be846d0" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Mon Oct 02 02:18:08 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:20 2006 -0700" }, "message": "[PATCH] namespaces: incorporate fs namespace into nsproxy\n\nThis moves the mount namespace into the nsproxy. The mount namespace count\nnow refers to the number of nsproxies point to it, rather than the number of\ntasks. As a result, the unshare_namespace() function in kernel/fork.c no\nlonger checks whether it is being shared.\n\nSigned-off-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Andrey Savochkin \u003csaw@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ab516013ad9ca47f1d3a936fa81303bfbf734d52", "tree": "643ea9c4c3d28958cb42dd87b1856f74edd22b11", "parents": [ "b1ba4ddde0cf67991d89f039365eaaeda61aa027" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Mon Oct 02 02:18:06 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:20 2006 -0700" }, "message": "[PATCH] namespaces: add nsproxy\n\nThis patch adds a nsproxy structure to the task struct. Later patches will\nmove the fs namespace pointer into this structure, and introduce a new utsname\nnamespace into the nsproxy.\n\nThe vserver and openvz functionality, then, would be implemented in large part\nby virtualizing/isolating more and more resources into namespaces, each\ncontained in the nsproxy.\n\n[akpm@osdl.org: build fix]\nSigned-off-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Kirill Korotaev \u003cdev@openvz.org\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Herbert Poetzl \u003cherbert@13thfloor.at\u003e\nCc: Andrey Savochkin \u003csaw@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8f0ab5147951267134612570604cf8341901a80c", "tree": "d394edb3ab69396128e7971136f05fd71d863ece", "parents": [ "9acc1853519a0473620d424105f9d49ea5b4e62e" ], "author": { "name": "Jay Lan", "email": "jlan@engr.sgi.com", "time": "Sat Sep 30 23:28:59 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 01 00:39:29 2006 -0700" }, "message": "[PATCH] csa: convert CONFIG tag for extended accounting routines\n\nThere were a few accounting data/macros that are used in CSA but are #ifdef\u0027ed\ninside CONFIG_BSD_PROCESS_ACCT. This patch is to change those ifdef\u0027s from\nCONFIG_BSD_PROCESS_ACCT to CONFIG_TASK_XACCT. A few defines are moved from\nkernel/acct.c and include/linux/acct.h to kernel/tsacct.c and\ninclude/linux/tsacct_kern.h.\n\nSigned-off-by: Jay Lan \u003cjlan@sgi.com\u003e\nCc: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Jes Sorensen \u003cjes@sgi.com\u003e\nCc: Chris Sturtivant \u003ccsturtiv@sgi.com\u003e\nCc: Tony Ernst \u003ctee@sgi.com\u003e\nCc: Guillaume Thouvenin \u003cguillaume.thouvenin@bull.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5b160f5ecd2f1b6df2e0015dc1f319c8ef803d62", "tree": "ff7f77b4178299146d6450f01f5d1da769c3fda9", "parents": [ "1c573afebc6213e4372e0d8352034c23d5262e1f" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Sep 29 02:00:52 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 29 09:18:18 2006 -0700" }, "message": "[PATCH] copy_process: cosmetic -\u003eioprio tweak\n\ncopy_process:\n// holds tasklist_lock + -\u003esiglock\n /*\n * inherit ioprio\n */\n p-\u003eioprio \u003d current-\u003eioprio;\n\nWhy? -\u003eioprio was already copied in dup_task_struct(). I guess this is\nneeded to ensure that the child can\u0027t escape\nsys_ioprio_set(IOPRIO_WHO_{PGRP,USER}), yes?\n\nIn that case we don\u0027t need -\u003esiglock held, and the comment should be\nupdated.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6c5c934153513dc72e2d6464f39e8ef1f27c0a3e", "tree": "be799da4af646a96c2d6ab473e276a7361beb685", "parents": [ "3d5b6fccc4b900cc4267692f015ea500bad4c6bf" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Sep 29 01:59:40 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 29 09:18:09 2006 -0700" }, "message": "[PATCH] ifdef blktrace debugging fields\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ebdea46fecae40c4d7effcd33f40918a37a1df4b", "tree": "e4312bf7f1f3d184738963a0ec300aa9fdfd55c1", "parents": [ "fecf3404f4aba6d0edeba31eeb018cbb6326dff2", "250d375d1da45a5e08ab8baf5eaa7eb258afd82b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Sep 28 14:40:39 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Sep 28 14:40:39 2006 -0700" }, "message": "Merge branch \u0027devel\u0027 of master.kernel.org:/home/rmk/linux-2.6-arm\n\n* \u0027devel\u0027 of master.kernel.org:/home/rmk/linux-2.6-arm: (130 commits)\n [ARM] 3856/1: Add clocksource for Intel IXP4xx platforms\n [ARM] 3855/1: Add generic time support\n [ARM] 3873/1: S3C24XX: Add irq_chip names\n [ARM] 3872/1: S3C24XX: Apply consistant tabbing to irq_chips\n [ARM] 3871/1: S3C24XX: Fix ordering of EINT4..23\n [ARM] nommu: confirms the CR_V bit in nommu mode\n [ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores.\n [ARM] 3870/1: AT91: Start removing static memory mappings\n [ARM] 3869/1: AT91: NAND support for DK and KB9202 boards\n [ARM] 3868/1: AT91 hardware header update\n [ARM] 3867/1: AT91 GPIO update\n [ARM] 3866/1: AT91 clock update\n [ARM] 3865/1: AT91RM9200 header updates\n [ARM] 3862/2: S3C2410 - add basic power management support for AML M5900 series\n [ARM] kthread: switch arch/arm/kernel/apm.c\n [ARM] Off-by-one in arch/arm/common/icst*\n [ARM] 3864/1: Refactore sharpsl_pm\n [ARM] 3863/1: Add Locomo SPI Device\n [ARM] 3847/2: Convert LOMOMO to use struct device for GPIOs\n [ARM] Use CPU_CACHE_* where possible in asm/cacheflush.h\n ...\n" }, { "commit": "0a4254058037eb172758961d0a5b94f4320a1425", "tree": "e9e64daf007952322c7ab0671b2f2f841085c04d", "parents": [ "b62a5c740df1e3d49a97349fce0c6a23f633d7fe" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Tue Sep 26 10:52:38 2006 +0200" }, "committer": { "name": "Andi Kleen", "email": "andi@basil.nowhere.org", "time": "Tue Sep 26 10:52:38 2006 +0200" }, "message": "[PATCH] Add the canary field to the PDA area and the task struct\n\nThis patch adds the per thread cookie field to the task struct and the PDA.\nAlso it makes sure that the PDA value gets the new cookie value at context\nswitch, and that a new task gets a new cookie at task creation time.\n\nSigned-off-by: Arjan van Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nCC: Andi Kleen \u003cak@suse.de\u003e\n" }, { "commit": "b36e4758dc1b9ff1f6d97e951edba22366230d11", "tree": "3419ae3d588bdc1ecc51748c63077cb18ac974c3", "parents": [ "7ad1bcb25c5623f1f87c50fdf2272f58ff91db5a" ], "author": { "name": "Russell King", "email": "rmk@dyn-67.arm.linux.org.uk", "time": "Sun Aug 27 12:26:34 2006 +0100" }, "committer": { "name": "Russell King", "email": "rmk+kernel@arm.linux.org.uk", "time": "Wed Sep 20 14:58:35 2006 +0100" }, "message": "[ARM] Fix kernel/fork.c for lockdep on ARM\n\nARM has interrupts enabled over context switches (iow, has\n__ARCH_WANT_INTERRUPTS_ON_CTXSW defined.) The lockdep code in fork.c\n assumes that interrupts are always disabled. Fix this wrong\nassumption by making the initialisation of \u0027p-\u003ehardirqs_enabled\u0027\ndepend on __ARCH_WANT_INTERRUPTS_ON_CTXSW.\n\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\n" }, { "commit": "35df17c57cecb08f0120fb18926325f1093dc429", "tree": "dc79780b3133e55dc591e35238fdb313e8e0219e", "parents": [ "30f3174d1c506db2c6d2c1dddc9c064e741d6b76" ], "author": { "name": "Shailabh Nagar", "email": "nagar@watson.ibm.com", "time": "Thu Aug 31 21:27:38 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 01 11:39:08 2006 -0700" }, "message": "[PATCH] task delay accounting fixes\n\nCleanup allocation and freeing of tsk-\u003edelays used by delay accounting.\nThis solves two problems reported for delay accounting:\n\n1. oops in __delayacct_blkio_ticks\nhttp://www.uwsg.indiana.edu/hypermail/linux/kernel/0608.2/1844.html\n\nCurrently tsk-\u003edelays is getting freed too early in task exit which can\ncause a NULL tsk-\u003edelays to get accessed via reading of /proc/\u003ctgid\u003e/stats.\n The patch fixes this problem by freeing tsk-\u003edelays closer to when\ntask_struct itself is freed up. As a result, it also eliminates the use of\ntsk-\u003edelays_lock which was only being used (inadequately) to safeguard\naccess to tsk-\u003edelays while a task was exiting.\n\n2. Possible memory leak in kernel/delayacct.c\nhttp://www.uwsg.indiana.edu/hypermail/linux/kernel/0608.2/1389.html\n\nThe patch cleans up tsk-\u003edelays allocations after a bad fork which was\nmissing earlier.\n\nThe patch has been tested to fix the problems listed above and stress\ntested with rapid calls to delay accounting\u0027s taskstats command interface\n(which is the other path that can access the same data, besides the /proc\ninterface causing the oops above).\n\nSigned-off-by: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9f59ce5d0e0dd837853385927b150f5cef3a7f52", "tree": "12d158ca678e803e77803cd9476fd6104e8ae0c0", "parents": [ "f9abd1ace43d6186268856dbec2ebf411218d6ca" ], "author": { "name": "Chuck Ebbert", "email": "76306.1226@compuserve.com", "time": "Sat Aug 05 12:14:11 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Aug 06 08:57:46 2006 -0700" }, "message": "[PATCH] ptrace: make pid of child process available for PTRACE_EVENT_VFORK_DONE\n\nWhen delivering PTRACE_EVENT_VFORK_DONE, provide pid of the child process\nwhen tracer calls ptrace(PTRACE_GETEVENTMSG). This is already\n(accidentally) available when the tracer is tracing VFORK in addition to\nVFORK_DONE.\n\nSigned-off-by: Chuck Ebbert \u003c76306.1226@compuserve.com\u003e\nCc: Daniel Jacobowitz \u003cdan@debian.org\u003e\nCc: Albert Cahalan \u003cacahalan@gmail.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ad4ecbcba72855a2b5319b96e2a3a65ed1ca3bfd", "tree": "a2f5b98598948525de77ab594e4432f09a230388", "parents": [ "25890454667b3295f67b3372352be90705f8667c" ], "author": { "name": "Shailabh Nagar", "email": "nagar@watson.ibm.com", "time": "Fri Jul 14 00:24:44 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jul 14 21:53:57 2006 -0700" }, "message": "[PATCH] delay accounting taskstats interface send tgid once\n\nSend per-tgid data only once during exit of a thread group instead of once\nwith each member thread exit.\n\nCurrently, when a thread exits, besides its per-tid data, the per-tgid data\nof its thread group is also sent out, if its thread group is non-empty.\nThe per-tgid data sent consists of the sum of per-tid stats for all\n*remaining* threads of the thread group.\n\nThis patch modifies this sending in two ways:\n\n- the per-tgid data is sent only when the last thread of a thread group\n exits. This cuts down heavily on the overhead of sending/receiving\n per-tgid data, especially when other exploiters of the taskstats\n interface aren\u0027t interested in per-tgid stats\n\n- the semantics of the per-tgid data sent are changed. Instead of being\n the sum of per-tid data for remaining threads, the value now sent is the\n true total accumalated statistics for all threads that are/were part of\n the thread group.\n\nThe patch also addresses a minor issue where failure of one accounting\nsubsystem to fill in the taskstats structure was causing the send of\ntaskstats to not be sent at all.\n\nThe patch has been tested for stability and run cerberus for over 4 hours\non an SMP.\n\n[akpm@osdl.org: bugfixes]\nSigned-off-by: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nSigned-off-by: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Jay Lan \u003cjlan@engr.sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ca74e92b4698276b6696f15a801759f50944f387", "tree": "26f0de66d8207608e07ee22389bfc173e773c0c2", "parents": [ "e8f4d97e1b58b50ad6449bb2d35e6632c0236abd" ], "author": { "name": "Shailabh Nagar", "email": "nagar@watson.ibm.com", "time": "Fri Jul 14 00:24:36 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jul 14 21:53:56 2006 -0700" }, "message": "[PATCH] per-task-delay-accounting: setup\n\nInitialization code related to collection of per-task \"delay\" statistics which\nmeasure how long it had to wait for cpu, sync block io, swapping etc. The\ncollection of statistics and the interface are in other patches. This patch\nsets up the data structures and allows the statistics collection to be\ndisabled through a kernel boot parameter.\n\nSigned-off-by: Shailabh Nagar \u003cnagar@watson.ibm.com\u003e\nSigned-off-by: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Jes Sorensen \u003cjes@sgi.com\u003e\nCc: Peter Chubb \u003cpeterc@gelato.unsw.edu.au\u003e\nCc: Erich Focht \u003cefocht@ess.nec.de\u003e\nCc: Levent Serinol \u003clserinol@gmail.com\u003e\nCc: Jay Lan \u003cjlan@engr.sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c59923a15c12d2b3597af913bf234a0ef264a38b", "tree": "b501b52309d68e711b7e162b570c16e535922d32", "parents": [ "f84dfe82962759f3355eacc8e377361bb77b5274" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Mon Jul 10 04:45:40 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 10 13:24:26 2006 -0700" }, "message": "[PATCH] remove the tasklist_lock export\n\nAs announced half a year ago this patch will remove the tasklist_lock\nexport. The previous two patches got rid of the remaining modular users.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "36c8b586896f60cb91a4fd526233190b34316baf", "tree": "003246e1e676de33703daa979b3e3109ca202a89", "parents": [ "48f24c4da1ee7f3f22289cb85e8b8a73e4df4db5" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:25:41 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:11 2006 -0700" }, "message": "[PATCH] sched: cleanup, remove task_t, convert to struct task_struct\n\ncleanup: remove task_t and convert all the uses to struct task_struct. I\nintroduced it for the scheduler anno and it was a mistake.\n\nConversion was mostly scripted, the result was reviewed and all\nsecondary whitespace and style impact (if any) was fixed up by hand.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ad33945175bed649ca5fe0881269db005bbb449a", "tree": "2aac47ea54ac59f33e8188e25e1e9d9807eecae7", "parents": [ "d378834840907326ac9d448056d957d13cc3718f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:25:15 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:08 2006 -0700" }, "message": "[PATCH] lockdep: annotate -\u003emmap_sem\n\nTeach special (recursive) locking code to the lock validator. Has no effect\non non-lockdep kernels.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fbb9ce9530fd9b66096d5187fa6a115d16d9746c", "tree": "1151a55e5d56045bac17b9766e6a4696cff0a26f", "parents": [ "cae2ed9aa573415c6e5de9a09b7ff0d74af793bc" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:50 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:03 2006 -0700" }, "message": "[PATCH] lockdep: core\n\nDo \u0027make oldconfig\u0027 and accept all the defaults for new config options -\nreboot into the kernel and if everything goes well it should boot up fine and\nyou should have /proc/lockdep and /proc/lockdep_stats files.\n\nTypically if the lock validator finds some problem it will print out\nvoluminous debug output that begins with \"BUG: ...\" and which syslog output\ncan be used by kernel developers to figure out the precise locking scenario.\n\nWhat does the lock validator do? It \"observes\" and maps all locking rules as\nthey occur dynamically (as triggered by the kernel\u0027s natural use of spinlocks,\nrwlocks, mutexes and rwsems). Whenever the lock validator subsystem detects a\nnew locking scenario, it validates this new rule against the existing set of\nrules. If this new rule is consistent with the existing set of rules then the\nnew rule is added transparently and the kernel continues as normal. If the\nnew rule could create a deadlock scenario then this condition is printed out.\n\nWhen determining validity of locking, all possible \"deadlock scenarios\" are\nconsidered: assuming arbitrary number of CPUs, arbitrary irq context and task\ncontext constellations, running arbitrary combinations of all the existing\nlocking scenarios. In a typical system this means millions of separate\nscenarios. This is why we call it a \"locking correctness\" validator - for all\nrules that are observed the lock validator proves it with mathematical\ncertainty that a deadlock could not occur (assuming that the lock validator\nimplementation itself is correct and its internal data structures are not\ncorrupted by some other kernel subsystem). [see more details and conditionals\nof this statement in include/linux/lockdep.h and\nDocumentation/lockdep-design.txt]\n\nFurthermore, this \"all possible scenarios\" property of the validator also\nenables the finding of complex, highly unlikely multi-CPU multi-context races\nvia single single-context rules, increasing the likelyhood of finding bugs\ndrastically. In practical terms: the lock validator already found a bug in\nthe upstream kernel that could only occur on systems with 3 or more CPUs, and\nwhich needed 3 very unlikely code sequences to occur at once on the 3 CPUs.\nThat bug was found and reported on a single-CPU system (!). So in essence a\nrace will be found \"piecemail-wise\", triggering all the necessary components\nfor the race, without having to reproduce the race scenario itself! In its\nshort existence the lock validator found and reported many bugs before they\nactually caused a real deadlock.\n\nTo further increase the efficiency of the validator, the mapping is not per\n\"lock instance\", but per \"lock-class\". For example, all struct inode objects\nin the kernel have inode-\u003einotify_mutex. If there are 10,000 inodes cached,\nthen there are 10,000 lock objects. But -\u003einotify_mutex is a single \"lock\ntype\", and all locking activities that occur against -\u003einotify_mutex are\n\"unified\" into this single lock-class. The advantage of the lock-class\napproach is that all historical -\u003einotify_mutex uses are mapped into a single\n(and as narrow as possible) set of locking rules - regardless of how many\ndifferent tasks or inode structures it took to build this set of rules. The\nset of rules persist during the lifetime of the kernel.\n\nTo see the rough magnitude of checking that the lock validator does, here\u0027s a\nportion of /proc/lockdep_stats, fresh after bootup:\n\n lock-classes: 694 [max: 2048]\n direct dependencies: 1598 [max: 8192]\n indirect dependencies: 17896\n all direct dependencies: 16206\n dependency chains: 1910 [max: 8192]\n in-hardirq chains: 17\n in-softirq chains: 105\n in-process chains: 1065\n stack-trace entries: 38761 [max: 131072]\n combined max dependencies: 2033928\n hardirq-safe locks: 24\n hardirq-unsafe locks: 176\n softirq-safe locks: 53\n softirq-unsafe locks: 137\n irq-safe locks: 59\n irq-unsafe locks: 176\n\nThe lock validator has observed 1598 actual single-thread locking patterns,\nand has validated all possible 2033928 distinct locking scenarios.\n\nMore details about the design of the lock validator can be found in\nDocumentation/lockdep-design.txt, which can also found at:\n\n http://redhat.com/~mingo/lockdep-patches/lockdep-design.txt\n\n[bunk@stusta.de: cleanups]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "de30a2b355ea85350ca2f58f3b9bf4e5bc007986", "tree": "0bef670aff65614b3c78ca13b20307355b8221d5", "parents": [ "5bdc9b447c0076f494a56fdcd93ee8c5e78a2afd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:42 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:03 2006 -0700" }, "message": "[PATCH] lockdep: irqtrace subsystem, core\n\nAccurate hard-IRQ-flags and softirq-flags state tracing.\n\nThis allows us to attach extra functionality to IRQ flags on/off\nevents (such as trace-on/off).\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9a11b49a805665e13a56aa067afaf81d43ec1514", "tree": "bf499956e3f67d1211d68ab1e2eb76645f453dfb", "parents": [ "fb7e42413a098cc45b3adf858da290033af62bae" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:33 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:01 2006 -0700" }, "message": "[PATCH] lockdep: better lock debugging\n\nGeneric lock debugging:\n\n - generalized lock debugging framework. For example, a bug in one lock\n subsystem turns off debugging in all lock subsystems.\n\n - got rid of the caller address passing (__IP__/__IP_DECL__/etc.) from\n the mutex/rtmutex debugging code: it caused way too much prototype\n hackery, and lockdep will give the same information anyway.\n\n - ability to do silent tests\n\n - check lock freeing in vfree too.\n\n - more finegrained debugging options, to allow distributions to\n turn off more expensive debugging features.\n\nThere\u0027s no separate \u0027held mutexes\u0027 list anymore - but there\u0027s a \u0027held locks\u0027\nstack within lockdep, which unifies deadlock detection across all lock\nclasses. (this is independent of the lockdep validation stuff - lockdep first\nchecks whether we are holding a lock already)\n\nHere are the current debugging options:\n\nCONFIG_DEBUG_MUTEXES\u003dy\nCONFIG_DEBUG_LOCK_ALLOC\u003dy\n\nwhich do:\n\n config DEBUG_MUTEXES\n bool \"Mutex debugging, basic checks\"\n\n config DEBUG_LOCK_ALLOC\n bool \"Detect incorrect freeing of live mutexes\"\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6ab3d5624e172c553004ecc862bfeac16d9d68b7", "tree": "6d98881fe91fd9583c109208d5c27131b93fa248", "parents": [ "e02169b682bc448ccdc819dc8639ed34a23cedd8" ], "author": { "name": "Jörn Engel", "email": "joern@wohnheim.fh-wedel.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "message": "Remove obsolete #include \u003clinux/config.h\u003e\n\nSigned-off-by: Jörn Engel \u003cjoern@wohnheim.fh-wedel.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "c87e2837be82df479a6bae9f155c43516d2feebc", "tree": "ad6ab35f0b78f71abaa7b05185e9e3f97809c6de", "parents": [ "0cdbee9920fb37eb2dc49b860c2b28862d647adc" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 27 02:54:58 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jun 27 17:32:47 2006 -0700" }, "message": "[PATCH] pi-futex: futex_lock_pi/futex_unlock_pi support\n\nThis adds the actual pi-futex implementation, based on rt-mutexes.\n\n[dino@in.ibm.com: fix an oops-causing race]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "23f78d4a03c53cbd75d87a795378ea540aa08c86", "tree": "27dfe06337990911380fe8c5949ae9acd8e9568a", "parents": [ "b29739f902ee76a05493fb7d2303490fc75364f4" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jun 27 02:54:53 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jun 27 17:32:47 2006 -0700" }, "message": "[PATCH] pi-futex: rt mutex core\n\nCore functions for the rt-mutex subsystem.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cf2dfbfbf4c5cb489ea12defd85a484307b955b8", "tree": "c6aa61378a738694390c2728957ed72608b4a183", "parents": [ "5debfa6da5b06954bc79fe8deed0d1062c58dcec" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Mon Jun 26 00:26:10 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:27 2006 -0700" }, "message": "[PATCH] coredump: copy_process: don\u0027t check SIGNAL_GROUP_EXIT\n\nAfter the previous patch SIGNAL_GROUP_EXIT implies a pending SIGKILL, we\ncan remove this check from copy_process() because we already checked\n!signal_pending().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "48e6484d49020dba3578ad117b461e8a391e8f0f", "tree": "7824ca84bfe71c3fe2c09a1fedc31106fec4f500", "parents": [ "662795deb854b31501e0ffb42b7f0cce802c134a" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Jun 26 00:25:48 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jun 26 09:58:24 2006 -0700" }, "message": "[PATCH] proc: Rewrite the proc dentry flush on exit optimization\n\nTo keep the dcache from filling up with dead /proc entries we flush them on\nprocess exit. However over the years that code has gotten hairy with a\ndentry_pointer and a lock in task_struct and misdocumented as a correctness\nfeature.\n\nI have rewritten this code to look and see if we have a corresponding entry in\nthe dcache and if so flush it on process exit. This removes the extra fields\nin the task_struct and allows me to trivially handle the case of a\n/proc/\u003ctgid\u003e/task/\u003cpid\u003e entry as well as the current /proc/\u003cpid\u003e entries.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0e4648141af02331f21aabcd34940c70f09a2d04", "tree": "3e4dea992a8e3f3194be04a0fd3e14c24a313ee7", "parents": [ "6bc392741d661eb84be503d1fdf14b6746615e4c" ], "author": { "name": "KaiGai Kohei", "email": "kaigai@ak.jp.nec.com", "time": "Sun Jun 25 05:49:24 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jun 25 10:01:25 2006 -0700" }, "message": "[PATCH] pacct: add pacct_struct to fix some pacct bugs.\n\nThe pacct facility need an i/o operation when an accounting record is\ngenerated. There is a possibility to wake OOM killer up. If OOM killer is\nactivated, it kills some processes to make them release process memory\nregions.\n\nBut acct_process() is called in the killed processes context before calling\nexit_mm(), so those processes cannot release own memory. In the results, any\nprocesses stop in this point and it finally cause a system stall.\n" }, { "commit": "6e6672604773b9bae44d88d38afdf0763c104b1c", "tree": "fa597c1b9d46d3f7ed6743f2230a0ac9813693a7", "parents": [ "538c5902b81cc384e93ad3834b6d4a0b3fcb2285" ], "author": { "name": "Prasanna Meda", "email": "mlp@google.com", "time": "Fri Jun 23 02:05:23 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:43:04 2006 -0700" }, "message": "[PATCH] dup fd error fix\n\nSet errorp in dup_fd, it will be used in sys_unshare also.\n\nSigned-off-by: Prasanna Meda \u003cmlp@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0ae26f1b3159f3acb21ae1e866c3c7e16edd450f", "tree": "28a86cc8682ad5b247f597773572e410b9457d72", "parents": [ "32797f976d62af709943aae38a9457b5a6dbcd8a" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Fri Jun 23 02:05:15 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:43:03 2006 -0700" }, "message": "[PATCH] mmput() might sleep\n\nexit_aio() and exit_mmap() can sleep. But it\u0027s easy to accidentally call\nmmput() from inside locks.\n\nCc: Dave Peterson \u003cdsp@llnl.gov\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fa84cb935d4ec601528f5e2f0d5d31e7876a5044", "tree": "ba0694902a1fec4e32ff15503fc316c24b4a4501", "parents": [ "d6fe3945b42d09a1eca7ad180a1646e585b8594f" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Mar 29 20:30:19 2006 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon May 01 06:06:13 2006 -0400" }, "message": "[PATCH] move call of audit_free() into do_exit()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a0aa7f68afeeb92f6274b395177c20e617c8ed2d", "tree": "6750a82e5799dd2fe9cd8eb8320a98107f0f5d05", "parents": [ "7daac4902053045450fa29db42aba19a4581f850" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Apr 20 13:05:33 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Apr 20 13:05:33 2006 +0200" }, "message": "[PATCH] Don\u0027t inherit -\u003esplice_pipe across forks\n\nIt\u0027s really task private, so clear that field on fork after copying\ntask structure.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "5e85d4abe3f43bb5362f384bab0e20ef082ce0b5", "tree": "cd3a29086e5274fd08bc8d22d15568deab144755", "parents": [ "181ae4005d0a4010802be534d929b38c42b9ac06" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Apr 18 22:20:16 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Apr 19 09:13:49 2006 -0700" }, "message": "[PATCH] task: Make task list manipulations RCU safe\n\nWhile we can currently walk through thread groups, process groups, and\nsessions with just the rcu_read_lock, this opens the door to walking the\nentire task list.\n\nWe already have all of the other RCU guarantees so there is no cost in\ndoing this, this should be enough so that proc can stop taking the\ntasklist lock during readdir.\n\nprev_task was killed because it has no users, and using it will miss new\ntasks when doing an rcu traversal.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "64541d19702cfdb7ea946fdc20faee849f6874b1", "tree": "0eb2fbcac51359b590b9692b112fe662fee49a4a", "parents": [ "1f60245479ca6d4d3f2cf4a47c7dd18caf5afdf2" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Apr 14 12:43:15 2006 -0600" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Apr 14 17:43:57 2006 -0700" }, "message": "[PATCH] kill unushed __put_task_struct_cb\n\nSomehow in the midst of dotting i\u0027s and crossing t\u0027s during\nthe merge up to rc1 we wound up keeping __put_task_struct_cb\nwhen it should have been killed as it no longer has any users.\nSorry I probably should have caught this while it was\nstill in the -mm tree.\n\nHaving the old code there gets confusing when reading\nthrough the code and trying to understand what is\nhappening.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "428622986858aebddc32d022af65e88b9d2ea8bb", "tree": "888b968f53e55d81386836ae3f43f46cea4ad6ce", "parents": [ "e358c1a2c45f7ec32d77cc09a2bb42d6823a4193" ], "author": { "name": "Kirill Korotaev", "email": "dev@openvz.org", "time": "Fri Mar 31 17:58:46 2006 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 31 12:25:46 2006 -0800" }, "message": "[PATCH] wrong error path in dup_fd() leading to oopses in RCU\n\nWrong error path in dup_fd() - it should return NULL on error,\nnot an address of already freed memory :/\n\nTriggered by OpenVZ stress test suite.\n\nWhat is interesting is that it was causing different oopses in RCU like\nbelow:\nCall Trace:\n [\u003cc013492c\u003e] rcu_do_batch+0x2c/0x80\n [\u003cc0134bdd\u003e] rcu_process_callbacks+0x3d/0x70\n [\u003cc0126cf3\u003e] tasklet_action+0x73/0xe0\n [\u003cc01269aa\u003e] __do_softirq+0x10a/0x130\n [\u003cc01058ff\u003e] do_softirq+0x4f/0x60\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n [\u003cc0113817\u003e] smp_apic_timer_interrupt+0x77/0x110\n [\u003cc0103b54\u003e] apic_timer_interrupt+0x1c/0x24\n Code: Bad EIP value.\n \u003c0\u003eKernel panic - not syncing: Fatal exception in interrupt\n\nSigned-Off-By: Pavel Emelianov \u003cxemul@sw.ru\u003e\nSigned-Off-By: Dmitry Mishin \u003cdim@openvz.org\u003e\nSigned-Off-By: Kirill Korotaev \u003cdev@openvz.org\u003e\nSigned-Off-By: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "92476d7fc0326a409ab1d3864a04093a6be9aca7", "tree": "ea50a5a31522492d9915e0763a7adc6ac87c4fbc", "parents": [ "8c7904a00b06d2ee51149794b619e07369fcf9d4" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Fri Mar 31 02:31:42 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 31 12:19:00 2006 -0800" }, "message": "[PATCH] pidhash: Refactor the pid hash table\n\nSimplifies the code, reduces the need for 4 pid hash tables, and makes the\ncode more capable.\n\nIn the discussions I had with Oleg it was felt that to a large extent the\ncleanup itself justified the work. With struct pid being dynamically\nallocated meant we could create the hash table entry when the pid was\nallocated and free the hash table entry when the pid was freed. Instead of\nplaying with the hash lists when ever a process would attach or detach to a\nprocess.\n\nFor myself the fact that it gave what my previous task_ref patch gave for free\nwith simpler code was a big win. The problem is that if you hold a reference\nto struct task_struct you lock in 10K of low memory. If you do that in a user\ncontrollable way like /proc does, with an unprivileged but hostile user space\napplication with typical resource limits of 1000 fds and 100 processes I can\ntrigger the OOM killer by consuming all of low memory with task structs, on a\nmachine wight 1GB of low memory.\n\nIf I instead hold a reference to struct pid which holds a pointer to my\ntask_struct, I don\u0027t suffer from that problem because struct pid is 2 orders\nof magnitude smaller. In fact struct pid is small enough that most other\nkernel data structures dwarf it, so simply limiting the number of referring\ndata structures is enough to prevent exhaustion of low memory.\n\nThis splits the current struct pid into two structures, struct pid and struct\npid_link, and reduces our number of hash tables from PIDTYPE_MAX to just one.\nstruct pid_link is the per process linkage into the hash tables and lives in\nstruct task_struct. struct pid is given an indepedent lifetime, and holds\npointers to each of the pid types.\n\nThe independent life of struct pid simplifies attach_pid, and detach_pid,\nbecause we are always manipulating the list of pids and not the hash table.\nIn addition in giving struct pid an indpendent life it makes the concept much\nmore powerful.\n\nKernel data structures can now embed a struct pid * instead of a pid_t and\nnot suffer from pid wrap around problems or from keeping unnecessarily\nlarge amounts of memory allocated.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "158d9ebd19280582da172626ad3edda1a626dace", "tree": "5b821a6faf28d136b65ae30a56e7f731adc11c28", "parents": [ "390e2ff07712468ce6600a43aa91e897b056ce12" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Fri Mar 31 02:31:34 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 31 12:18:59 2006 -0800" }, "message": "[PATCH] resurrect __put_task_struct\n\nThis just got nuked in mainline. Bring it back because Eric\u0027s patches use it.\n\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a7e5328a06a2beee3a2bbfaf87ce2a7bbe937de1", "tree": "168102a80e9b98d19e8bf39156d35dacdb253c3d", "parents": [ "4a2c7a7837da1b91468e50426066d988050e4d56" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:27 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] cleanup __exit_signal-\u003ecleanup_sighand path\n\nMove \u0027tsk-\u003esighand \u003d NULL\u0027 from cleanup_sighand() to __exit_signal(). This\nmakes the exit path more understandable and allows us to do\ncleanup_sighand() outside of -\u003esiglock protected section.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4a2c7a7837da1b91468e50426066d988050e4d56", "tree": "e7e321e1a61b934e3c0d938360cc4b990407fcea", "parents": [ "47e65328a7b1cdfc4e3102e50d60faf94ebba7d3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:26 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] make fork() atomic wrt pgrp/session signals\n\nEric W. Biederman wrote:\n\u003e\n\u003e Ok. SUSV3/Posix is clear, fork is atomic with respect\n\u003e to signals. Either a signal comes before or after a\n\u003e fork but not during. (See the rationale section).\n\u003e http://www.opengroup.org/onlinepubs/000095399/functions/fork.html\n\u003e\n\u003e The tasklist_lock does not stop forks from adding to a process\n\u003e group. The forks stall while the tasklist_lock is held, but a fork\n\u003e that began before we grabbed the tasklist_lock simply completes\n\u003e afterwards, and the child does not receive the signal.\n\nThis also means that SIGSTOP or sig_kernel_coredump() signal can\u0027t\nbe delivered to pgrp/session reliably.\n\nWith this patch copy_process() returns -ERESTARTNOINTR when it\ndetects a pending signal, fork() will be restarted transparently\nafter handling the signals.\n\nThis patch also deletes now unneeded \"group_stop_count \u003e 0\" check,\ncopy_process() can no longer succeed while group stop in progress.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-By: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47e65328a7b1cdfc4e3102e50d60faf94ebba7d3", "tree": "78e00a5321cca87767806a91e623e71b5c6637c7", "parents": [ "88531f725bd52e37a7be726860e4ff3f09031d89" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:25 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:44 2006 -0800" }, "message": "[PATCH] pids: kill PIDTYPE_TGID\n\nThis patch kills PIDTYPE_TGID pid_type thus saving one hash table in\nkernel/pid.c and speeding up subthreads create/destroy a bit. It is also a\npreparation for the further tref/pids rework.\n\nThis patch adds \u0027struct list_head thread_group\u0027 to \u0027struct task_struct\u0027\ninstead.\n\nWe don\u0027t detach group leader from PIDTYPE_PID namespace until another\nthread inherits it\u0027s -\u003epid \u003d\u003d -\u003etgid, so we are safe wrt premature\nfree_pidmap(-\u003etgid) call.\n\nCurrently there are no users of find_task_by_pid_type(PIDTYPE_TGID).\nShould the need arise, we can use find_task_by_pid()-\u003egroup_leader.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-By: Eric Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c81addc9d3a0ebff2155e0cd86f90820ab97147e", "tree": "56eb3a50f71e7a0e2a0f0daef4ec097375b06f8d", "parents": [ "29ff471234d53c7235db287bc52f91884c2977c6" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:43 2006 -0800" }, "message": "[PATCH] rename __exit_sighand to cleanup_sighand\n\nCosmetic, rename __exit_sighand to cleanup_sighand and move it close to\ncopy_sighand().\n\nThis matches copy_signal/cleanup_signal naming, and I think it is easier to\nfollow.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6b3934ef52712ece50605dfc72e55d00c580831a", "tree": "5ec3c4f69a20880f75de6ff8d7d2f67d96328df3", "parents": [ "7001510d0cbf51ad202dd2d0744f54104285cbb9" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:16 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] copy_process: cleanup bad_fork_cleanup_signal\n\n__exit_signal() does important cleanups atomically under -\u003esiglock. It is\nalso called from copy_process\u0027s error path. This is not good, for example we\ncan\u0027t move __unhash_process() under -\u003esiglock for that reason.\n\nWe should not mix these 2 paths, just look at ugly \u0027if (p-\u003esighand)\u0027 under\n\u0027bad_fork_cleanup_sighand:\u0027 label. For copy_process() case it is sufficient\nto just backout copy_signal(), nothing more.\n\nAgain, nobody can see this task yet. For CLONE_THREAD case we just decrement\nsignal-\u003ecount, otherwise nobody can see this -\u003esignal and we can free it\nlockless.\n\nThis patch assumes it is safe to do exit_thread_group_keys() without\ntasklist_lock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7001510d0cbf51ad202dd2d0744f54104285cbb9", "tree": "1df2a6930c460c12026231634b86d14b153a4a86", "parents": [ "a9e88e84b5245da0a1dadb6ccca70ae84e93ccf6" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:14 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] copy_process: cleanup bad_fork_cleanup_sighand\n\nThe only caller of exit_sighand(tsk) is copy_process\u0027s error path. We can\ncall __exit_sighand() directly and kill exit_sighand().\n\nThis \u0027tsk\u0027 was not yet registered in pid_hash[] or init_task.tasks, it has no\nexternal references, nobody can see it, and\n\n\tIF (clone_flags \u0026 CLONE_SIGHAND)\n\t\tAt least \u0027current\u0027 has a reference to -\u003esighand, this\n\t\tmeans atomic_dec_and_test(sighand-\u003ecount) can\u0027t be true.\n\n\tELSE\n\t\tNobody can see this -\u003esighand, this means we can free it\n\t\twithout any locking.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nAcked-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "aa1757f90bea3f598b6e5d04d922a6a60200f1da", "tree": "4f8f3804b2595031d0b84de7086dc28375290f0d", "parents": [ "1f09f9749cdde4e69f95d62d96d2e03f50b3353c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:42 2006 -0800" }, "message": "[PATCH] convert sighand_cache to use SLAB_DESTROY_BY_RCU\n\nThis patch borrows a clever Hugh\u0027s \u0027struct anon_vma\u0027 trick.\n\nWithout tasklist_lock held we can\u0027t trust task-\u003esighand until we locked it\nand re-checked that it is still the same.\n\nBut this means we don\u0027t need to defer \u0027kmem_cache_free(sighand)\u0027. We can\nreturn the memory to slab immediately, all we need is to be sure that\nsighand-\u003esiglock can\u0027t dissapear inside rcu protected section.\n\nTo do so we need to initialize -\u003esiglock inside ctor function,\nSLAB_DESTROY_BY_RCU does the rest.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "73b9ebfe126a4a886ee46cbab637374d7024668a", "tree": "d7ba00d4ce76b49c1569334956cd196b35977a04", "parents": [ "c97d98931ac52ef110b62d9b75c6a6f2bfbc1898" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:07 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:41 2006 -0800" }, "message": "[PATCH] pidhash: don\u0027t count idle threads\n\nfork_idle() does unhash_process() just after copy_process(). Contrary,\nboot_cpu\u0027s idle thread explicitely registers itself for each pid_type with nr\n\u003d 0.\n\ncopy_process() already checks p-\u003epid !\u003d 0 before process_counts++, I think we\ncan just skip attach_pid() calls and job control inits for idle threads and\nkill unhash_process(). We don\u0027t need to cleanup -\u003eproc_dentry in fork_idle()\nbecause with this patch idle threads are never hashed in\nkernel/pid.c:pid_hash[].\n\nWe don\u0027t need to hash pid \u003d\u003d 0 in pidmap_init(). free_pidmap() is never\ncalled with pid \u003d\u003d 0 arg, so it will never be reused. So it is still possible\nto use pid \u003d\u003d 0 in any PIDTYPE_xxx namespace from kernel/pid.c\u0027s POV.\n\nHowever with this patch we don\u0027t hash pid \u003d\u003d 0 for PIDTYPE_PID case. We still\nhave have PIDTYPE_PGID/PIDTYPE_SID entries with pid \u003d\u003d 0: /sbin/init and\nkernel threads which don\u0027t call daemonize().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c97d98931ac52ef110b62d9b75c6a6f2bfbc1898", "tree": "f811f8b2862692c2eb7ee92e62e8f0afcfd37a2d", "parents": [ "9b678ece42893b53aae5ed7cb8d7cb261cacb72c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Mar 28 16:11:06 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 18:36:41 2006 -0800" }, "message": "[PATCH] kill SET_LINKS/REMOVE_LINKS\n\nBoth SET_LINKS() and SET_LINKS/REMOVE_LINKS() have exactly one caller, and\nthese callers already check thread_group_leader().\n\nThis patch kills theese macros, they mix two different things: setting\nprocess\u0027s parent and registering it in init_task.tasks list. Callers are\nupdated to do these actions by hand.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8f17d3a5049d32392b79925c73a0cf99ce6d5af0", "tree": "3c2aa0cbe337684d353dd2cfb0c177b4ae15217c", "parents": [ "8fdd6c6df7889dc89df3d9fe0f5bbe6733e39f48" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 27 01:16:27 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:49 2006 -0800" }, "message": "[PATCH] lightweight robust futexes updates\n\n- fix: initialize the robust list(s) to NULL in copy_process.\n\n- doc update\n\n- cleanup: rename _inuser to _inatomic\n\n- __user cleanups and other small cleanups\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9ae21d1bb376436285cd5346d3e4b3655d6dd1b9", "tree": "8f889770fae721da63bd378c1834a87e2eb1cfb5", "parents": [ "f9b4192923fa6e38331e88214b1fe5fc21583fcc", "e9415777b1cd0eaf4d1d3d61772f0e6d5c2551ad" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 09:41:18 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 09:41:18 2006 -0800" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:\n drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment\n Kconfig help: MTD_JEDECPROBE already supports Intel\n Remove ugly debugging stuff\n do_mounts.c: Minor ROOT_DEV comment cleanup\n BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c\n BUG_ON() Conversion in mm/mempool.c\n BUG_ON() Conversion in mm/memory.c\n BUG_ON() Conversion in kernel/fork.c\n BUG_ON() Conversion in ipc/sem.c\n BUG_ON() Conversion in fs/ext2/\n BUG_ON() Conversion in fs/hfs/\n BUG_ON() Conversion in fs/dcache.c\n BUG_ON() Conversion in fs/buffer.c\n BUG_ON() Conversion in input/serio/hp_sdc_mlc.c\n BUG_ON() Conversion in md/dm-table.c\n BUG_ON() Conversion in md/dm-path-selector.c\n BUG_ON() Conversion in drivers/isdn\n BUG_ON() Conversion in drivers/char\n BUG_ON() Conversion in drivers/mtd/\n" }, { "commit": "05cfb614ddbf3181540ce09d44d96486f8ba8d6a", "tree": "aafed98638557a4643141d906fbb2406f0764a94", "parents": [ "df869b630d9d9131c10cf073fb61646048874b2f" ], "author": { "name": "Roman Zippel", "email": "zippel@linux-m68k.org", "time": "Sun Mar 26 01:38:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 08:57:03 2006 -0800" }, "message": "[PATCH] hrtimers: remove data field\n\nThe nanosleep cleanup allows to remove the data field of hrtimer. The\ncallback function can use container_of() to get it\u0027s own data. Since the\nhrtimer structure is anyway embedded in other structures, this adds no\noverhead.\n\nSigned-off-by: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "910dea7fdda22f0ee83d26d459e460c79ed94557", "tree": "46e68906b0026e11ed567cedb7993060c89da9e2", "parents": [ "27315c96a4c3d5f24a902111dae537cdc28302e4" ], "author": { "name": "Eric Sesterhenn", "email": "snakebyte@gmx.de", "time": "Sun Mar 26 18:29:26 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Sun Mar 26 18:29:26 2006 +0200" }, "message": "BUG_ON() Conversion in kernel/fork.c\n\nthis changes if() BUG(); constructs to BUG_ON() which is\ncleaner, contains unlikely() and can better optimized away.\n\nSigned-off-by: Eric Sesterhenn \u003csnakebyte@gmx.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "c61afb181c649754ea221f104e268cbacfc993e3", "tree": "870917b3f9175cf1663a2620d989856913cfb5f8", "parents": [ "101a50019ae5e370d73984ee05d56dd3b08f330a" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Fri Mar 24 03:16:08 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 24 07:33:23 2006 -0800" }, "message": "[PATCH] cpuset memory spread slab cache optimizations\n\nThe hooks in the slab cache allocator code path for support of NUMA\nmempolicies and cpuset memory spreading are in an important code path. Many\nsystems will use neither feature.\n\nThis patch optimizes those hooks down to a single check of some bits in the\ncurrent tasks task_struct flags. For non NUMA systems, this hook and related\ncode is already ifdef\u0027d out.\n\nThe optimization is done by using another task flag, set if the task is using\na non-default NUMA mempolicy. Taking this flag bit along with the\nPF_SPREAD_PAGE and PF_SPREAD_SLAB flag bits added earlier in this \u0027cpuset\nmemory spreading\u0027 patch set, one can check for the combination of any of these\nspecial case memory placement mechanisms with a single test of the current\ntasks task_struct flags.\n\nThis patch also tightens up the code, to save a few bytes of kernel text\nspace, and moves some of it out of line. Due to the nested inlines called\nfrom multiple places, we were ending up with three copies of this code, which\nonce we get off the main code path (for local node allocation) seems a bit\nwasteful of instruction memory.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2056a782f8e7e65fd4bfd027506b4ce1c5e9ccd4", "tree": "d4fe59a7ca0c110690937085548936a4535c39db", "parents": [ "6dac40a7ce2483a47b54af07afebeb84131c7228" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Mar 23 20:00:26 2006 +0100" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Mar 23 20:00:26 2006 +0100" }, "message": "[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "0c9e63fd38a2fb2181668a0cdd622a3c23cfd567", "tree": "8fdb91603347b1da2e83a095ebcaab44b2c3c237", "parents": [ "d8733c2956968a01394a4d2a9e97a8b431a78776" ], "author": { "name": "Eric Dumazet", "email": "dada1@cosmosbay.com", "time": "Thu Mar 23 03:00:12 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:09 2006 -0800" }, "message": "[PATCH] Shrinks sizeof(files_struct) and better layout\n\n1) Reduce the size of (struct fdtable) to exactly 64 bytes on 32bits\n platforms, lowering kmalloc() allocated space by 50%.\n\n2) Reduce the size of (files_struct), using a special 32 bits (or\n 64bits) embedded_fd_set, instead of a 1024 bits fd_set for the\n close_on_exec_init and open_fds_init fields. This save some ram (248\n bytes per task) as most tasks dont open more than 32 files. D-Cache\n footprint for such tasks is also reduced to the minimum.\n\n3) Reduce size of allocated fdset. Currently two full pages are\n allocated, that is 32768 bits on x86 for example, and way too much. The\n minimum is now L1_CACHE_BYTES.\n\nUP and SMP should benefit from this patch, because most tasks will touch\nonly one cache line when open()/close() stdin/stdout/stderr (0/1/2),\n(next_fd, close_on_exec_init, open_fds_init, fd_array[0 .. 2] being in the\nsame cache line)\n\nSigned-off-by: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "06f9d4f94a075285d25253edbf57f2cda07d4ff3", "tree": "56a3d3c05606811b15ab7b301c25815e9ac5e1e8", "parents": [ "b40607fc02f8248828d52d88f91b7d68df1933b0" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Mar 22 00:07:40 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:53:55 2006 -0800" }, "message": "[PATCH] unshare: Error if passed unsupported flags\n\nA bare bones trivial patch to ensure we always get -EINVAL on the\nunsupported cases for sys_unshare. If this goes in before 2.6.16 it allows\nus to forward compatible with future applications using sys_unshare.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: JANAK DESAI \u003cjanak@us.ibm.com\u003e\nCc: \u003cstable@kerenl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2d61b86775a5676a8fba2ba2f0f869564e35c630", "tree": "afdb967ec1bb3ddd212acdd8f25675c371f7e6e7", "parents": [ "265a92856b17524c87da0258ac0d3cec80ae1d35" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sat Mar 18 20:41:10 2006 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 18 10:49:36 2006 -0800" }, "message": "[PATCH] disable unshare(CLONE_VM) for now\n\nsys_unshare() does mmput(new_mm). This is not enough if we have\nmm-\u003ecore_waiters.\n\nThis patch is a temporary fix for soon to be released 2.6.16.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\n[ Checked with Uli: \"I\u0027m not planning to use unshare(CLONE_VM). It\u0027s\n not needed for any functionality planned so far. What we (as in Red\n Hat) need unshare() for now is the filesystem side.\" ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e0e8eb54d8ae0c4cfd1d297f6351b08a7f635c5f", "tree": "e6f6442aca13fe9d20d149ed9b414f038d90778f", "parents": [ "232a347a444e687b5f8cf0f6485704db1c6024d3" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Mar 16 10:31:38 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 17 07:46:59 2006 -0800" }, "message": "[PATCH] unshare: Use rcu_assign_pointer when setting sighand\n\nThe sighand pointer only needs the rcu_read_lock on the\nread side. So only depending on task_lock protection\nwhen setting this pointer is not enough. We also need\na memory barrier to ensure the initialization is seen first.\n\nUse rcu_assign_pointer as it does this for us, and clearly\ndocuments that we are setting an rcu readable pointer.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nAcked-by: Paul E. McKenney \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f9a3879abf2f1a27c39915e6074b8ff15a24cb55", "tree": "67a133c1957e992ee10f8d33e312616f494d7b07", "parents": [ "63e1fd41c7127650d355e7db7dd92890edf5523b" ], "author": { "name": "GOTO Masanori", "email": "gotom@sanori.org", "time": "Mon Mar 13 21:20:44 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 14 07:57:17 2006 -0800" }, "message": "[PATCH] Fix sigaltstack corruption among cloned threads\n\nThis patch fixes alternate signal stack corruption among cloned threads\nwith CLONE_SIGHAND (and CLONE_VM) for linux-2.6.16-rc6.\n\nThe value of alternate signal stack is currently inherited after a call of\nclone(... CLONE_SIGHAND | CLONE_VM). But if sigaltstack is set by a\nparent thread, and then if multiple cloned child threads (+ parent threads)\ncall signal handler at the same time, some threads may be conflicted -\nbecause they share to use the same alternative signal stack region.\nFinally they get sigsegv. It\u0027s an undesirable race condition. Note that\nchild threads created from NPTL pthread_create() also hit this conflict\nwhen the parent thread uses sigaltstack, without my patch.\n\nTo fix this problem, this patch clears the child threads\u0027 sigaltstack\ninformation like exec(). This behavior follows the SUSv3 specification.\nIn SUSv3, pthread_create() says \"The alternate stack shall not be inherited\n(when new threads are initialized)\". It means that sigaltstack should be\ncleared when sigaltstack memory space is shared by cloned threads with\nCLONE_SIGHAND.\n\nNote that I chose \"if (clone_flags \u0026 CLONE_SIGHAND)\" line because:\n - If clone_flags line is not existed, fork() does not inherit sigaltstack.\n - CLONE_VM is another choice, but vfork() does not inherit sigaltstack.\n - CLONE_SIGHAND implies CLONE_VM, and it looks suitable.\n - CLONE_THREAD is another candidate, and includes CLONE_SIGHAND + CLONE_VM,\n but this flag has a bit different semantics.\nI decided to use CLONE_SIGHAND.\n\n[ Changed to test for CLONE_VM \u0026\u0026 !CLONE_VFORK after discussion --Linus ]\n\nSigned-off-by: GOTO Masanori \u003cgotom@sanori.org\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Jakub Jelinek \u003cjakub@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7cd9013be6c22f3ff6f777354f766c8c0b955e17", "tree": "328e45aadb4c5bc9b6cd530be03572070201f5e5", "parents": [ "27d162e26a873883937b64526445877bd3341d23" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sat Mar 11 03:27:18 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 11 09:19:34 2006 -0800" }, "message": "[PATCH] remove __put_task_struct_cb export again\n\nThe patch \u0027[PATCH] RCU signal handling\u0027 [1] added an export for\n__put_task_struct_cb, a put_task_struct helper newly introduced in that\npatch. But the put_task_struct couldn\u0027t be used modular previously as\n__put_task_struct wasn\u0027t exported. There are not callers of it in modular\ncode, and it shouldn\u0027t be exported because we don\u0027t want drivers to hold\nreferences to task_structs.\n\nThis patch removes the export and folds __put_task_struct into\n__put_task_struct_cb as there\u0027s no other caller.\n\n[1] http://www2.kernel.org/git/gitweb.cgi?p\u003dlinux/kernel/git/torvalds/linux-2.6.git;a\u003dcommit;h\u003de56d090310d7625ecb43a1eeebd479f04affb48b\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: Paul E. McKenney \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dadac81b1b86196fcc48fb87620403c4a7174f06", "tree": "fc19d44716915e55b237af3fb01a09f5be6d91c3", "parents": [ "3f17da699431ec48540beabc55c54d4b5e66c8e7" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed Feb 15 22:13:26 2006 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Feb 15 10:21:24 2006 -0800" }, "message": "[PATCH] fix kill_proc_info() vs fork() theoretical race\n\ncopy_process:\n\n\tattach_pid(p, PIDTYPE_PID, p-\u003epid);\n\tattach_pid(p, PIDTYPE_TGID, p-\u003etgid);\n\nWhat if kill_proc_info(p-\u003epid) happens in between?\n\ncopy_process() holds current-\u003esighand.siglock, so we are safe\nin CLONE_THREAD case, because current-\u003esighand \u003d\u003d p-\u003esighand.\n\nOtherwise, p-\u003esighand is unlocked, the new process is already\nvisible to the find_task_by_pid(), but have a copy of parent\u0027s\n\u0027struct pid\u0027 in -\u003epids[PIDTYPE_TGID].\n\nThis means that __group_complete_signal() may hang while doing\n\n\tdo ... while (next_thread() !\u003d p)\n\nWe can solve this problem if we reverse these 2 attach_pid()s:\n\n\tattach_pid() does wmb()\n\n\tgroup_send_sig_info() calls spin_lock(), which\n\tprovides a read barrier. // Yes ?\n\nI don\u0027t think we can hit this race in practice, but still.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3f17da699431ec48540beabc55c54d4b5e66c8e7", "tree": "0cc68e5daea5d4532a0225aa47cce193a32f6655", "parents": [ "7775aa7690c26b3c5606090a43533a7a7429eb91" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed Feb 15 22:13:24 2006 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Feb 15 10:21:23 2006 -0800" }, "message": "[PATCH] fix kill_proc_info() vs CLONE_THREAD race\n\nThere is a window after copy_process() unlocks -\u003esighand.siglock\nand before it adds the new thread to the thread list.\n\nIn that window __group_complete_signal(SIGKILL) will not see the\nnew thread yet, so this thread will start running while the whole\nthread group was supposed to exit.\n\nI beleive we have another good reason to place attach_pid(PID/TGID)\nunder -\u003esighand.siglock. We can do the same for\n\n\trelease_task()-\u003e__unhash_process()\n\n\tde_thread()-\u003eswitch_exec_pids()\n\nAfter that we don\u0027t need tasklist_lock to iterate over the thread\nlist, and we can simplify things, see for example do_sigaction()\nor sys_times().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a016f3389c06606dd80e687942ff3c71d41823c4", "tree": "c6fdc00cc6762d98fea1fad64d851119d5e7aa45", "parents": [ "a0a7ec308f1be5957b20a1a535d21f683dfd83f0" ], "author": { "name": "JANAK DESAI", "email": "janak@us.ibm.com", "time": "Tue Feb 07 12:59:02 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 07 16:12:34 2006 -0800" }, "message": "[PATCH] unshare system call -v5: unshare files\n\nIf the file descriptor structure is being shared, allocate a new one and copy\ninformation from the current, shared, structure.\n\nSigned-off-by: Janak Desai \u003cjanak@us.ibm.com\u003e\nCc: Al Viro \u003cviro@ftp.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a0a7ec308f1be5957b20a1a535d21f683dfd83f0", "tree": "3814ee7b6aa51558d7c2200e41d587c9150389e5", "parents": [ "741a295130606143edbf9fc740f633dbc1e6225f" ], "author": { "name": "JANAK DESAI", "email": "janak@us.ibm.com", "time": "Tue Feb 07 12:59:01 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 07 16:12:34 2006 -0800" }, "message": "[PATCH] unshare system call -v5: unshare vm\n\nIf vm structure is being shared, allocate a new one and copy information from\nthe current, shared, structure.\n\nSigned-off-by: Janak Desai \u003cjanak@us.ibm.com\u003e\nCc: Al Viro \u003cviro@ftp.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "741a295130606143edbf9fc740f633dbc1e6225f", "tree": "3679047dd44e94ba94ee1487880a94def93a06f9", "parents": [ "99d1419d96d7df9cfa56bc977810be831bd5ef64" ], "author": { "name": "JANAK DESAI", "email": "janak@us.ibm.com", "time": "Tue Feb 07 12:59:00 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 07 16:12:34 2006 -0800" }, "message": "[PATCH] unshare system call -v5: unshare namespace\n\nIf the namespace structure is being shared, allocate a new one and copy\ninformation from the current, shared, structure.\n\nSigned-off-by: Janak Desai \u003cjanak@us.ibm.com\u003e\nCc: Al Viro \u003cviro@ftp.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "99d1419d96d7df9cfa56bc977810be831bd5ef64", "tree": "994e2fe33cef91933d299af9c26ddb9a92da58f4", "parents": [ "cf2e340f4249b781b3d2beb41e891d08581f0e10" ], "author": { "name": "JANAK DESAI", "email": "janak@us.ibm.com", "time": "Tue Feb 07 12:58:59 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 07 16:12:34 2006 -0800" }, "message": "[PATCH] unshare system call -v5: unshare filesystem info\n\nIf filesystem structure is being shared, allocate a new one and copy\ninformation from the current, shared, structure.\n\nSigned-off-by: Janak Desai \u003cjanak@us.ibm.com\u003e\nCc: Al Viro \u003cviro@ftp.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cf2e340f4249b781b3d2beb41e891d08581f0e10", "tree": "77130c96dbf86a2659bd346f14ccc3b0857a3e7c", "parents": [ "0d4c3e7a8c65892c7d6a748fdbb4499e988880db" ], "author": { "name": "JANAK DESAI", "email": "janak@us.ibm.com", "time": "Tue Feb 07 12:58:58 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 07 16:12:34 2006 -0800" }, "message": "[PATCH] unshare system call -v5: system call handler function\n\nsys_unshare system call handler function accepts the same flags as clone\nsystem call, checks constraints on each of the flags and invokes corresponding\nunshare functions to disassociate respective process context if it was being\nshared with another task.\n\nHere is the link to a program for testing unshare system call.\n\nhttp://prdownloads.sourceforge.net/audit/unshare_test.c?download\n\nPlease note that because of a problem in rmdir associated with bind mounts and\nclone with CLONE_NEWNS, the test fails while trying to remove temporary test\ndirectory. You can remove that temporary directory by doing rmdir, twice,\nfrom the command line. The first will fail with EBUSY, but the second will\nsucceed. I have reported the problem to Ram Pai and Al Viro with a small\nprogram which reproduces the problem. Al told us yesterday that he will be\nlooking at the problem soon. I have tried multiple rmdirs from the\nunshare_test program itself, but for some reason that is not working. Doing\ntwo rmdirs from command line does seem to remove the directory.\n\nSigned-off-by: Janak Desai \u003cjanak@us.ibm.com\u003e\nCc: Al Viro \u003cviro@ftp.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "7978672c4d9a1e6a6081de3a9d9ba5e5b24904a0" }