)]}' { "log": [ { "commit": "fac046ad0b1ee2c4244ebf43a26433ef0ea29ae4", "tree": "a2354b6b80efebbbd0d0f24a325a722ad06b5a54", "parents": [ "ea58ceb543b45d45b257a86eaf9d60c94e8adcf2" ], "author": { "name": "Shaohua Li", "email": "shaohua.li@intel.com", "time": "Tue Dec 15 16:47:47 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 16 07:20:13 2009 -0800" }, "message": "aio: remove unused field\n\nDon\u0027t know the reason, but it appears ki_wait field of iocb never gets used.\n\nSigned-off-by: Shaohua Li \u003cshaohua.li@intel.com\u003e\nCc: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Zach Brown \u003czach.brown@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": "b9d128f1088ea5245109dfc9bbceb128b6371a77", "tree": "63e85f281dd372e77af4022e2235a4e5a46287de", "parents": [ "a870a3a485ddf7c0dec549269ed71d169556d61c" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 29 13:59:26 2009 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 29 13:59:26 2009 +0100" }, "message": "block: move bdi/address_space unplug functions to backing-dev.h\n\nThere\u0027s nothing block related about them, the backing device\nis used by things like NFS etc as well. This gets rid of the\nneed to protect such calls by CONFIG_BLOCK.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "cfb1e33eed48165763edc7a4a067cf5f74898d0b", "tree": "d0e0bdd0664615b1f7be6cf770476e16dbcad116", "parents": [ "1af60fbd759d31f565552fea315c2033947cfbe6" ], "author": { "name": "Jeff Moyer", "email": "jmoyer@redhat.com", "time": "Fri Oct 02 18:57:36 2009 -0400" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Wed Oct 28 09:29:25 2009 +0100" }, "message": "aio: implement request batching\n\nHi,\n\nSome workloads issue batches of small I/O, and the performance is poor\ndue to the call to blk_run_address_space for every single iocb. Nathan\nRoberts pointed this out, and suggested that by deferring this call\nuntil all I/Os in the iocb array are submitted to the block layer, we\ncan realize some impressive performance gains (up to 30% for sequential\n4k reads in batches of 16).\n\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "385773e04806e8903e9ec683f5c4bd14926a86dc", "tree": "4e883e55117d7e3955800fd220f9f7a4704eb78a", "parents": [ "8c87df457cb58fe75b9b893007917cf8095660a0" ], "author": { "name": "H Hartley Sweeten", "email": "hartleys@visionengravers.com", "time": "Tue Sep 22 16:43:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "aio.c: move EXPORT* macros to line after function\n\nAs mentioned in Documentation/CodingStyle, move EXPORT* macro\u0027s\nto the line immediately after the closing function brace line.\n\nAlso, move the __initcall() similarly.\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3d2d827f5ca5e32816194119d5c980c7e04474a6", "tree": "fe0e84669f5f20e1dff8e3dc6b191b4d5dfc0145", "parents": [ "425fbf047cc70bb30dff368a6da02c8c2d229318" ], "author": { "name": "Michael S. Tsirkin", "email": "mst@redhat.com", "time": "Mon Sep 21 17:03:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:42 2009 -0700" }, "message": "mm: move use_mm/unuse_mm from aio.c to mm/\n\nAnyone who wants to do copy to/from user from a kernel thread, needs\nuse_mm (like what fs/aio has). Move that into mm/, to make reusing and\nexporting easier down the line, and make aio use it. Next intended user,\nbesides aio, will be vhost-net.\n\nAcked-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nSigned-off-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "133890103b9de08904f909995973e4b5c08a780e", "tree": "0cda85a58dafafa0a197cf1a789124203f1e7a88", "parents": [ "f7c2df9b55212d5ec94169a4de11e44c683e0af4" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Jun 30 11:41:11 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 30 18:55:58 2009 -0700" }, "message": "eventfd: revised interface and cleanups\n\nChange the eventfd interface to de-couple the eventfd memory context, from\nthe file pointer instance.\n\nWithout such change, there is no clean way to racely free handle the\nPOLLHUP event sent when the last instance of the file* goes away. Also,\nnow the internal eventfd APIs are using the eventfd context instead of the\nfile*.\n\nThis patch is required by KVM\u0027s IRQfd code, which is still under\ndevelopment.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Gregory Haskins \u003cghaskins@novell.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Avi Kivity \u003cavi@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "65c24491b4fef017c64e39ec64384fde5e05e0a0", "tree": "3afa5c9eace50837f3c31238102358cf67b8a1ff", "parents": [ "87c3a86e1c220121d0ced59d1a71e78ed9abc6dd" ], "author": { "name": "Jeff Moyer", "email": "jmoyer@redhat.com", "time": "Wed Mar 18 17:04:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 19 15:57:18 2009 -0700" }, "message": "aio: lookup_ioctx can return the wrong value when looking up a bogus context\n\nThe libaio test harness turned up a problem whereby lookup_ioctx on a\nbogus io context was returning the 1 valid io context from the list\n(harness/cases/3.p).\n\nBecause of that, an extra put_iocontext was done, and when the process\nexited, it hit a BUG_ON in the put_iocontext macro called from exit_aio\n(since we expect a users count of 1 and instead get 0).\n\nThe problem was introduced by \"aio: make the lookup_ioctx() lockless\"\n(commit abf137dd7712132ee56d5b3143c2ff61a72a5faa).\n\nThanks to Zach for pointing out that hlist_for_each_entry_rcu will not\nreturn with a NULL tpos at the end of the loop, even if the entry was\nnot found.\n\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nAcked-by: Zach Brown \u003czach.brown@oracle.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\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": "87c3a86e1c220121d0ced59d1a71e78ed9abc6dd", "tree": "f0460d0a5f34da0c3df3cc729b705fc93a69be4b", "parents": [ "d0115552cdb0b4d4146975889fee2e9355515c4b" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Wed Mar 18 17:04:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 19 15:57:18 2009 -0700" }, "message": "eventfd: remove fput() call from possible IRQ context\n\nRemove a source of fput() call from inside IRQ context. Myself, like Eric,\nwasn\u0027t able to reproduce an fput() call from IRQ context, but Jeff said he was\nable to, with the attached test program. Independently from this, the bug is\nconceptually there, so we might be better off fixing it. This patch adds an\noptimization similar to the one we already do on -\u003eki_filp, on -\u003eki_eventfd.\nPlaying with -\u003ef_count directly is not pretty in general, but the alternative\nhere would be to add a brand new delayed fput() infrastructure, that I\u0027m not\nsure is worth it.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "002c8976ee537724b20a5e179d9b349309438836", "tree": "272ebe6d0dcb06bb16b978fb9793d266dbc1301a", "parents": [ "a26eab2400f0477bfac0255600552394855016f7" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:14:18 2009 +0100" }, "committer": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Jan 14 14:15:25 2009 +0100" }, "message": "[CVE-2009-0029] System call wrappers part 16\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\n" }, { "commit": "abf137dd7712132ee56d5b3143c2ff61a72a5faa", "tree": "8334f03c598343bb93340f081fcde5ba659b440b", "parents": [ "392ddc32982a5c661dd90dd49a3cb37f1c68b782" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Tue Dec 09 08:11:22 2008 +0100" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Mon Dec 29 08:29:50 2008 +0100" }, "message": "aio: make the lookup_ioctx() lockless\n\nThe mm-\u003eioctx_list is currently protected by a reader-writer lock,\nso we always grab that lock on the read side for doing ioctx\nlookups. As the workload is extremely reader biased, turn this into\nan rcu hlist so we can make lookup_ioctx() lockless. Get rid of\nthe rwlock and use a spinlock for providing update side exclusion.\n\nThere\u0027s usually only 1 entry on this list, so it doesn\u0027t make sense\nto look into fancier data structures.\n\nReviewed-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "516e0cc5646f377ab80fcc2ee639892eccb99853", "tree": "e06296dcedb42dbe397d237887873e70c5823d51", "parents": [ "3c333937ee3be114b181c4861188cfe8f6a59697" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 00:39:17 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:40 2008 -0400" }, "message": "[PATCH] f_count may wrap around\n\nmake it atomic_long_t; while we are at it, get rid of useless checks in affs,\nhfs and hpfs - -\u003eopen() always has it equal to 1, -\u003erelease() - to 0.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "246bb0b1deb29726990620d8b5e55ca29f331362", "tree": "5173b9e0c1d18934a8b2693c690a7162acb1bca8", "parents": [ "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kill PF_BORROWED_MM in favour of PF_KTHREAD\n\nKill PF_BORROWED_MM. Change use_mm/unuse_mm to not play with -\u003eflags, and\ndo s/PF_BORROWED_MM/PF_KTHREAD/ for a couple of other users.\n\nNo functional changes yet. But this allows us to do further\nfixes/cleanups.\n\noom_kill/ptrace/etc often check \"p-\u003emm !\u003d NULL\" to filter out the\nkthreads, this is wrong because of use_mm(). The problem with\nPF_BORROWED_MM is that we need task_lock() to avoid races. With this\npatch we can check PF_KTHREAD directly, or use a simple lockless helper:\n\n\t/* The result must not be dereferenced !!! */\n\tstruct mm_struct *__get_task_mm(struct task_struct *tsk)\n\t{\n\t\tif (tsk-\u003eflags \u0026 PF_KTHREAD)\n\t\t\treturn NULL;\n\t\treturn tsk-\u003emm;\n\t}\n\nNote also ecard_task(). It runs with -\u003emm !\u003d NULL, but it\u0027s the kernel\nthread without PF_BORROWED_MM.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aab2545fdd6641b76af0ae96456c4ca9d1e50dad", "tree": "5fa741cea7b76283cbab237ff6909f5c6ff32752", "parents": [ "06a1578e2448112d6f635b1a458a65e36f0f97c6" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jun 06 11:31:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jun 06 11:36:22 2008 -0700" }, "message": "uml: activate_mm: remove the dead PF_BORROWED_MM check\n\nuse_mm() was changed to use switch_mm() instead of activate_mm(), since\nthen nobody calls (and nobody should call) activate_mm() with\nPF_BORROWED_MM bit set.\n\nAs Jeff Dike pointed out, we can also remove the \"old !\u003d new\" check, it is\nalways true.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c6f3a97f86a5c97be0ca255976110bb9c3cfe669", "tree": "95a7bf3c928a85b26aed128786fc09e18bc5dcfc", "parents": [ "691cc54c7d28542434d2b3ee4ddbad6a99312dec" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Apr 30 00:55:03 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 30 08:29:53 2008 -0700" }, "message": "debugobjects: add timer specific object debugging code\n\nAdd calls to the generic object debugging infrastructure and provide fixup\nfunctions which allow to keep the system alive when recoverable problems have\nbeen detected by the object debugging core code.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "39fa00311f21318cc498b139c2cc2830dcad98ff", "tree": "936eeb3a4046fb9b17cc4297e3b783f49c0a1dc0", "parents": [ "68ab3d883a2df13f4b93a923bae3a287cbee29d3" ], "author": { "name": "Jeff Moyer", "email": "jmoyer@redhat.com", "time": "Tue Apr 29 01:03:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:29 2008 -0700" }, "message": "aio: fix misleading comments\n\nThe FIXME comments are inaccurate.\nThe locking comment over lookup_ioctx() is wrong.\n\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Shen Feng \u003cshen@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "801678c5a3b4c79236970bcca27c733f5559e0d1", "tree": "5ad4761f539525077895f261b64fccda4d1303c4", "parents": [ "9a6f70bbed4e8b72dd340812d7c606bfd5e00b47" ], "author": { "name": "Hirofumi Nakagawa", "email": "hnakagawa@miraclelinux.com", "time": "Tue Apr 29 01:03:09 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:25 2008 -0700" }, "message": "Remove duplicated unlikely() in IS_ERR()\n\nSome drivers have duplicated unlikely() macros. IS_ERR() already has\nunlikely() in itself.\n\nThis patch cleans up such pointless code.\n\nSigned-off-by: Hirofumi Nakagawa \u003chnakagawa@miraclelinux.com\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: Paul Clements \u003cpaul.clements@steeleye.com\u003e\nCc: Richard Purdie \u003crpurdie@rpsys.net\u003e\nCc: Alessandro Zummo \u003ca.zummo@towertech.it\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nCc: Michael Halcrow \u003cmhalcrow@us.ibm.com\u003e\nCc: Anton Altaparmakov \u003caia21@cantab.net\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Carsten Otte \u003ccotte@de.ibm.com\u003e\nCc: Patrick McHardy \u003ckaber@trash.net\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Jaroslav Kysela \u003cperex@perex.cz\u003e\nCc: Takashi Iwai \u003ctiwai@suse.de\u003e\nAcked-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d5470b596abdd566339b2417e807b1198be64b97", "tree": "e668e8196ed46efc9ea6036c5889e5f3a54dedcf", "parents": [ "07d45da616f8514651360b502314fc9554223a03" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Apr 29 00:58:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:00 2008 -0700" }, "message": "fs/aio.c: make 3 functions static\n\nMake the following needlessly global functions static:\n\n- __put_ioctx()\n- lookup_ioctx()\n- io_submit_one()\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e92adcba261fd391591bb63c1703185a04a41554", "tree": "83cd94eaa57931da66137a65089a0bcdddf20533", "parents": [ "180c06efce691f2b721dd0d965079827bdd7ee03" ], "author": { "name": "Jeff Moyer", "email": "jmoyer@redhat.com", "time": "Mon Apr 28 02:12:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Apr 28 08:58:17 2008 -0700" }, "message": "aio: io_getevents() should return if io_destroy() is invoked\n\nThis patch wakes up a thread waiting in io_getevents if another thread\ndestroys the context. This was tested using a small program that spawns a\nthread to wait in io_getevents while the parent thread destroys the io context\nand then waits for the getevents thread to exit. Without this patch, the\nprogram hangs indefinitely. With the patch, the program exits as expected.\n\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Christopher Smith \u003cx@xman.org\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\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": "8d1c98b0b5c0148b519c6416e689ef6a89ffcea3", "tree": "904c70d4ed15dd79a003c34bad2e25cff9522420", "parents": [ "d479540dbaba6f7acdb48e0242fee868c7a68116" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu Apr 10 21:29:19 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 11 08:06:43 2008 -0700" }, "message": "eventfd/kaio integration fix\n\nJeff Roberson discovered a race when using kaio eventfd based notifications.\nWhen it occurs it can lead tomissed wakeups and hung userspace.\n\nThis patch fixes the race by moving the notification inside the spinlocked\nsection of kaio. The operation is safe since eventfd spinlock and kaio one\nare unrelated.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Jeff Roberson \u003cjroberson@chesapeake.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "598af051a79d05b751fe793f1fe09fcf74763e02", "tree": "c9adafd96ee316c3d05f2978697d3624547f9e84", "parents": [ "54a015104136974262afa4b8ddd943ea70dec8a2" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Thu Apr 10 15:38:45 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 10 17:28:26 2008 -0700" }, "message": "asmlinkage_protect sys_io_getevents\n\nUse asmlinkage_protect in sys_io_getevents, because GCC for i386 with\nCONFIG_FRAME_POINTER\u003dn can decide to clobber an argument word on the\nstack, i.e. the user struct pt_regs. Here the problem is not a tail\ncall, but just the compiler\u0027s use of the stack when it inlines and\noptimizes the body of the called function. This seems to avoid it.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6cb2a21049b8990df4576c5fce4d48d0206c22d5", "tree": "4303438449e0c0d4859e1818115e09d2fd8340ca", "parents": [ "264e3e889d86e552b4191d69bb60f4f3b383135a" ], "author": { "name": "Quentin Barnes", "email": "qbarnes+linux@yahoo-inc.com", "time": "Wed Mar 19 17:00:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Mar 19 18:53:35 2008 -0700" }, "message": "aio: bad AIO race in aio_complete() leads to process hang\n\nMy group ran into a AIO process hang on a 2.6.24 kernel with the process\nsleeping indefinitely in io_getevents(2) waiting for the last wakeup to come\nand it never would.\n\nWe ran the tests on x86_64 SMP. The hang only occurred on a Xeon box\n(\"Clovertown\") but not a Core2Duo (\"Conroe\"). On the Xeon, the L2 cache isn\u0027t\nshared between all eight processors, but is L2 is shared between between all\ntwo processors on the Core2Duo we use.\n\nMy analysis of the hang is if you go down to the second while-loop\nin read_events(), what happens on processor #1:\n\t1) add_wait_queue_exclusive() adds thread to ctx-\u003ewait\n\t2) aio_read_evt() to check tail\n\t3) if aio_read_evt() returned 0, call [io_]schedule() and sleep\n\nIn aio_complete() with processor #2:\n\tA) info-\u003etail \u003d tail;\n\tB) waitqueue_active(\u0026ctx-\u003ewait)\n\tC) if waitqueue_active() returned non-0, call wake_up()\n\nThe way the code is written, step 1 must be seen by all other processors\nbefore processor 1 checks for pending events in step 2 (that were recorded by\nstep A) and step A by processor 2 must be seen by all other processors\n(checked in step 2) before step B is done.\n\nThe race I believed I was seeing is that steps 1 and 2 were\neffectively swapped due to the __list_add() being delayed by the L2\ncache not shared by some of the other processors. Imagine:\nproc 2: just before step A\nproc 1, step 1: adds to ctx-\u003ewait, but is not visible by other processors yet\nproc 1, step 2: checks tail and sees no pending events\nproc 2, step A: updates tail\nproc 1, step 3: calls [io_]schedule() and sleeps\nproc 2, step B: checks ctx-\u003ewait, but sees no one waiting, skips wakeup\n so proc 1 sleeps indefinitely\n\nMy patch adds a memory barrier between steps A and B. It ensures that the\nupdate in step 1 gets seen on processor 2 before continuing. If processor 1\nwas just before step 1, the memory barrier makes sure that step A (update\ntail) gets seen by the time processor 1 makes it to step 2 (check tail).\n\nBefore the patch our AIO process would hang virtually 100% of the time. After\nthe patch, we have yet to see the process ever hang.\n\nSigned-off-by: Quentin Barnes \u003cqbarnes+linux@yahoo-inc.com\u003e\nReviewed-by: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: \u003cstable@kernel.org\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n[ We should probably disallow that \"if (waitqueue_active()) wake_up()\"\n coding pattern, because it\u0027s so often buggy wrt memory ordering ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c2ec66828fd253802abb912668f4bf9597e3c898", "tree": "6d7dfe34b423b5bf32a5a5ae6b35207db4bb5d22", "parents": [ "7adfa2ff3efa02a7a9f2632d2d2662d3e5eb5304" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Fri Feb 08 04:20:15 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:33 2008 -0800" }, "message": "aio: negative offset should return -EINVAL\n\nAn AIO read or write should return -EINVAL if the offset is negative.\nThis check matches the one in pread and pwrite.\n\nThis was found by the libaio test suite.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Zach Brown \u003czach.brown@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": "7adfa2ff3efa02a7a9f2632d2d2662d3e5eb5304", "tree": "8a312d527e25142c65eec3bf9360cfbaae4c2666", "parents": [ "25478445c4a39318acbe08ba8df7945766cbb5b5" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Fri Feb 08 04:20:14 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:33 2008 -0800" }, "message": "aio: partial write should not return error code\n\nWhen an AIO write gets an error after writing some data (eg. ENOSPC), it\nshould return the amount written already, not the error. Just like write()\nis supposed to.\n\nThis was found by the libaio test suite.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-By: Zach Brown \u003czach.brown@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": "fc9b52cd8f5f459b88adcf67c47668425ae31a78", "tree": "c29924eaf60d2e73641bf11fa906a23fa81f46c9", "parents": [ "75acb9cd2ef0bbb463098fdd40cbcdda79d45fa3" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Fri Feb 08 04:19:52 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:31 2008 -0800" }, "message": "fs: remove fastcall, it is always empty\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "56c4da454de1264e381256f658f61b9ef690dd21", "tree": "51c57b07cda376f93db3032f24e9a28fba834573", "parents": [ "6b7d190b14d478c759be22dcb7ee4695a711b562" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Wed Jan 30 13:31:17 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jan 30 13:31:17 2008 +0100" }, "message": "core: remove last users of empty FASTCALL macro\n\nFASTCALL is always empty after the x86 removal.\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "e00ba3dae077f54cfd2af42e939a618caa7a3bca", "tree": "eb2f29fe8df7cb29be7d1bdda8dabe825f30f182", "parents": [ "e3c0ac04f980750a368f7cd5f1b8d1d2cdc1f735" ], "author": { "name": "Jeff Moyer", "email": "jmoyer@redhat.com", "time": "Tue Dec 04 23:45:02 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Dec 05 09:21:18 2007 -0800" }, "message": "aio: only account I/O wait time in read_events if there are active requests\n\nOn 2.6.24, top started showing 100% iowait on one CPU when a UML instance was\nrunning (but completely idle). The UML code sits in io_getevents waiting for\nan event to be submitted and completed.\n\nFix this by checking ctx-\u003ereqs_active before scheduling to determine whether\nor not we are waiting for I/O.\n\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Miklos Szeredi \u003cmiklos@szeredi.hu\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6212e3a388fdda3f19fa660ef5a30edf54d1dcfd", "tree": "7218bbf29af36ff0c36aa2af8323a5206ea44b1c", "parents": [ "9cd9a0058dd35268b24fa16795a92c800f4086d4" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Oct 18 03:04:56 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:20 2007 -0700" }, "message": "Remove struct task_struct::io_wait\n\nHell knows what happened in commit 63b05203af57e7de4f3bb63b8b81d43bc196d32b\nduring 2.6.9 development. Commit introduced io_wait field which remained\nwrite-only than and still remains write-only.\n\nAlso garbage collect macros which \"use\" io_wait.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "41d10da3717409de33d5441f2f6d8f072ab3fbb6", "tree": "4822afef881132248a7c91ba6eb33065f3209f2b", "parents": [ "c17ac85504efec5f3a9b0c5b05bffd6f30e5b655" ], "author": { "name": "Jeff Moyer", "email": "jmoyer@redhat.com", "time": "Tue Oct 16 23:27:20 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:53 2007 -0700" }, "message": "aio: account I/O wait time properly\n\nSome months back I proposed changing the schedule() call in\nread_events to an io_schedule():\n\thttp://osdir.com/ml/linux.kernel.aio.general/2006-10/msg00024.html\nThis was rejected as there are AIO operations that do not initiate\ndisk I/O. I\u0027ve had another look at the problem, and the only AIO\noperation that will not initiate disk I/O is IOCB_CMD_NOOP. However,\nthis command isn\u0027t even wired up!\n\nGiven that it doesn\u0027t work, and hasn\u0027t for *years*, I\u0027m going to\nsuggest again that we do proper I/O accounting when using AIO.\n\nSigned-off-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nAcked-by: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "87e2831c3fa39cbf6f7ab676bb5aef039b9659e2", "tree": "88e1a3fca607a0643a7f6e60aef80a2bc04323c3", "parents": [ "745ad48e8cac47beec0b2f72dc3c64424bce1fec" ], "author": { "name": "Yan Zheng", "email": "yanzheng@21cn.com", "time": "Mon Oct 08 12:16:20 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 08 12:58:14 2007 -0700" }, "message": "AIO: fix cleanup in io_submit_one(...)\n\nWhen IOCB_FLAG_RESFD flag is set and iocb-\u003eaio_resfd is incorrect,\nstatement \u0027goto out_put_req\u0027 is executed. At label \u0027out_put_req\u0027,\naio_put_req(..) is called, which requires \u0027req-\u003eki_filp\u0027 set.\n\nSigned-off-by: Yan Zheng\u003cyanzheng@21cn.com\u003e\nCc: Zach Brown \u003czach.brown@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": "9c3060bedd84144653a2ad7bea32389f65598d40", "tree": "80336eb24be8458cda1f35ee752f05bc7c329fbb", "parents": [ "fdb902b1225e1668315f38e96d2f439452c03a15" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Thu May 10 22:23:21 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 08:29:37 2007 -0700" }, "message": "signal/timer/event: KAIO eventfd support example\n\nThis is an example about how to add eventfd support to the current KAIO code,\nin order to enable KAIO to post readiness events to a pollable fd (hence\ncompatible with POSIX select/poll). The KAIO code simply signals the eventfd\nfd when events are ready, and this triggers a POLLIN in the fd. This patch\nuses a reserved for future use member of the struct iocb to pass an eventfd\nfile descriptor, that KAIO will use to post events every time a request\ncompletes. At that point, an aio_getevents() will return the completed result\nto a struct io_event. I made a quick test program to verify the patch, and it\nruns fine here:\n\nhttp://www.xmailserver.org/eventfd-aio-test.c\n\nThe test program uses poll(2), but it\u0027d, of course, work with select and epoll\ntoo.\n\nThis can allow to schedule both block I/O and other poll-able devices\nrequests, and wait for results using select/poll/epoll. In a typical\nscenario, an application would submit KAIO request using aio_submit(), and\nwill also use epoll_ctl() on the whole other class of devices (that with the\naddition of signals, timers and user events, now it\u0027s pretty much complete),\nand then would:\n\n\tepoll_wait(...);\n\tfor_each_event {\n\t\tif (curr_event_is_kaiofd) {\n\t\t\taio_getevents();\n\t\t\tdispatch_aio_events();\n\t\t} else {\n\t\t\tdispatch_epoll_event();\n\t\t}\n\t}\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "28e53bddf814485699a4142bc056fd37d4e11dd4", "tree": "5182090c4cc2186eedbda3cb90ed82a2836f6ff6", "parents": [ "5830c5902138f80b0a097b797200c739466beedd" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Wed May 09 02:34:22 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:53 2007 -0700" }, "message": "unify flush_work/flush_work_keventd and rename it to cancel_work_sync\n\nflush_work(wq, work) doesn\u0027t need the first parameter, we can use cwq-\u003ewq\n(this was possible from the very beginnig, I missed this). So we can unify\nflush_work_keventd and flush_work.\n\nAlso, rename flush_work() to cancel_work_sync() and fix all callers.\nPerhaps this is not the best name, but \"flush_work\" is really bad.\n\n(akpm: this is why the earlier patches bypassed maintainers)\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jeff Garzik \u003cjeff@garzik.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Tejun Heo \u003chtejun@gmail.com\u003e\nCc: Auke Kok \u003cauke-jan.h.kok@intel.com\u003e,\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a9df62c7585e6caa1e7d2425b2b14460ec3afc20", "tree": "f3d291e208ca09cb0c185ed96242bb977e4e60e3", "parents": [ "83c22520c51bf67529367e8237f95c03fe44e2da" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Wed May 09 02:33:54 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:51 2007 -0700" }, "message": "aio: use flush_work()\n\nMigrate AIO over to use flush_work().\n\nCc: \"Maciej W. Rozycki\" \u003cmacro@linux-mips.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\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": "0a31bd5f2bbb6473ef9d24f0063ca91cfa678b64", "tree": "a945e829bf6bf7a93bf844b2ee9f2a3a2fa17c5d", "parents": [ "5af60839909b8e3b28ca7cd7912fa0b23475617f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Sun May 06 14:49:57 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon May 07 12:12:55 2007 -0700" }, "message": "KMEM_CACHE(): simplify slab cache creation\n\nThis patch provides a new macro\n\nKMEM_CACHE(\u003cstruct\u003e, \u003cflags\u003e)\n\nto simplify slab creation. KMEM_CACHE creates a slab with the name of the\nstruct, with the size of the struct and with the alignment of the struct.\nAdditional slab flags may be specified if necessary.\n\nExample\n\nstruct test_slab {\n\tint a,b,c;\n\tstruct list_head;\n} __cacheline_aligned_in_smp;\n\ntest_slab_cache \u003d KMEM_CACHE(test_slab, SLAB_PANIC)\n\nwill create a new slab named \"test_slab\" of the size sizeof(struct\ntest_slab) and aligned to the alignment of test slab. If it fails then we\npanic.\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": "28defbea64622f69d65a6079bf800cedb9915a5f", "tree": "245b552f14d72f0e3f28c7f2a443db55557050c9", "parents": [ "d459094083c3a23b31514bbe31cc3f4c21ed4445" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Tue Mar 27 15:44:01 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Mar 27 17:53:25 2007 -0700" }, "message": "[PATCH] aio: remove bare user-triggerable error printk\n\nThe user can generate console output if they cause do_mmap() to fail\nduring sys_io_setup(). This was seen in a regression test that does\nexactly that by spinning calling mmap() until it gets -ENOMEM before\ncalling io_setup().\n\nWe don\u0027t need this printk at all, just remove it.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c376222960ae91d5ffb9197ee36771aaed1d9f90", "tree": "7f431c42529fec77433d33490bd9f2a8c47ba091", "parents": [ "1b135431abf5ea92e61bf4e91d93726c7b96da5f" ], "author": { "name": "Robert P. J. Day", "email": "rpjday@mindspring.com", "time": "Sat Feb 10 01:45:03 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:27 2007 -0800" }, "message": "[PATCH] Transform kmem_cache_alloc()+memset(0) -\u003e kmem_cache_zalloc().\n\nReplace appropriate pairs of \"kmem_cache_alloc()\" + \"memset(0)\" with the\ncorresponding \"kmem_cache_zalloc()\" call.\n\nSigned-off-by: Robert P. J. Day \u003crpjday@mindspring.com\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: James Bottomley \u003cJames.Bottomley@steeleye.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nAcked-by: Joel Becker \u003cJoel.Becker@oracle.com\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Jan Kara \u003cjack@ucw.cz\u003e\nCc: Michael Halcrow \u003cmhalcrow@us.ibm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Chris Wright \u003cchrisw@sous-sol.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e10a4437cb37c85f2df95432025b392d98aac2aa", "tree": "f8a560ecf6e75f582c0f025385d5e350a21d9fd6", "parents": [ "7c5cae368a6c44eac0e817ae130301b65ff446dc" ], "author": { "name": "Robert P. J. Day", "email": "rpjday@mindspring.com", "time": "Sat Feb 10 01:42:56 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:17 2007 -0800" }, "message": "[PATCH] Remove final references to deprecated \"MAP_ANON\" page protection flag\n\nRemove the last vestiges of the long-deprecated \"MAP_ANON\" page protection\nflag: use \"MAP_ANONYMOUS\" instead.\n\nSigned-off-by: Robert P. J. Day \u003crpjday@mindspring.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dee11c2364f51cac53df17d742a0c69097e29a4e", "tree": "339b45f1dbd99a22bbe161ebeb5b7cd8850289ba", "parents": [ "3e8219806c33b64a00b0013f96f735451f30c64c" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Sat Feb 03 01:13:45 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sat Feb 03 11:26:06 2007 -0800" }, "message": "[PATCH] aio: fix buggy put_ioctx call in aio_complete - v2\n\nAn AIO bug was reported that sleeping function is being called in softirq\ncontext:\n\nBUG: warning at kernel/mutex.c:132/__mutex_lock_common()\nCall Trace:\n [\u003ca000000100577b00\u003e] __mutex_lock_slowpath+0x640/0x6c0\n [\u003ca000000100577ba0\u003e] mutex_lock+0x20/0x40\n [\u003ca0000001000a25b0\u003e] flush_workqueue+0xb0/0x1a0\n [\u003ca00000010018c0c0\u003e] __put_ioctx+0xc0/0x240\n [\u003ca00000010018d470\u003e] aio_complete+0x2f0/0x420\n [\u003ca00000010019cc80\u003e] finished_one_bio+0x200/0x2a0\n [\u003ca00000010019d1c0\u003e] dio_bio_complete+0x1c0/0x200\n [\u003ca00000010019d260\u003e] dio_bio_end_aio+0x60/0x80\n [\u003ca00000010014acd0\u003e] bio_endio+0x110/0x1c0\n [\u003ca0000001002770e0\u003e] __end_that_request_first+0x180/0xba0\n [\u003ca000000100277b90\u003e] end_that_request_chunk+0x30/0x60\n [\u003ca0000002073c0c70\u003e] scsi_end_request+0x50/0x300 [scsi_mod]\n [\u003ca0000002073c1240\u003e] scsi_io_completion+0x200/0x8a0 [scsi_mod]\n [\u003ca0000002074729b0\u003e] sd_rw_intr+0x330/0x860 [sd_mod]\n [\u003ca0000002073b3ac0\u003e] scsi_finish_command+0x100/0x1c0 [scsi_mod]\n [\u003ca0000002073c2910\u003e] scsi_softirq_done+0x230/0x300 [scsi_mod]\n [\u003ca000000100277d20\u003e] blk_done_softirq+0x160/0x1c0\n [\u003ca000000100083e00\u003e] __do_softirq+0x200/0x240\n [\u003ca000000100083eb0\u003e] do_softirq+0x70/0xc0\n\nSee report: http://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d116599593200888\u0026w\u003d2\n\nflush_workqueue() is not allowed to be called in the softirq context.\nHowever, aio_complete() called from I/O interrupt can potentially call\nput_ioctx with last ref count on ioctx and triggers bug. It is simply\nincorrect to perform ioctx freeing from aio_complete.\n\nThe bug is trigger-able from a race between io_destroy() and aio_complete().\nA possible scenario:\n\ncpu0 cpu1\nio_destroy aio_complete\n wait_for_all_aios { __aio_put_req\n ... ctx-\u003ereqs_active--;\n if (!ctx-\u003ereqs_active)\n return;\n }\n ...\n put_ioctx(ioctx)\n\n put_ioctx(ctx);\n __put_ioctx\n bam! Bug trigger!\n\nThe real problem is that the condition check of ctx-\u003ereqs_active in\nwait_for_all_aios() is incorrect that access to reqs_active is not\nbeing properly protected by spin lock.\n\nThis patch adds that protective spin lock, and at the same time removes\nall duplicate ref counting for each kiocb as reqs_active is already used\nas a ref count for each active ioctx. This also ensures that buggy call\nto flush_workqueue() in softirq context is eliminated.\n\nSigned-off-by: \"Ken Chen\" \u003ckenchen@google.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nCc: \u003cstable@kernel.org\u003e\nAcked-by: Jeff Moyer \u003cjmoyer@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1ebb1101c556b1915ff041655e629a072e64dcda", "tree": "d306821837152a8c772591a9bf136e5e091a7a31", "parents": [ "43cdff92ad47e0ca024c8a07d29f9bb6119e759c" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Fri Dec 29 16:47:02 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Sat Dec 30 10:55:54 2006 -0800" }, "message": "[PATCH] Fix lock inversion aio_kick_handler()\n\nlockdep found a AB BC CA lock inversion in retry-based AIO:\n\n1) The task struct\u0027s alloc_lock (A) is acquired in process context with\n interrupts enabled. An interrupt might arrive and call wake_up() which\n grabs the wait queue\u0027s q-\u003elock (B).\n\n2) When performing retry-based AIO the AIO core registers\n aio_wake_function() as the wake funtion for iocb-\u003eki_wait. It is called\n with the wait queue\u0027s q-\u003elock (B) held and then tries to add the iocb to\n the run list after acquiring the ctx_lock (C).\n\n3) aio_kick_handler() holds the ctx_lock (C) while acquiring the\n alloc_lock (A) via lock_task() and unuse_mm(). Lockdep emits a warning\n saying that we\u0027re trying to connect the irq-safe q-\u003elock to the\n irq-unsafe alloc_lock via ctx_lock.\n\nThis fixes the inversion by calling unuse_mm() in the AIO kick handing path\nafter we\u0027ve released the ctx_lock. As Ben LaHaise pointed out __put_ioctx\ncould set ctx-\u003emm to NULL, so we must only access ctx-\u003emm while we have the\nlock.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: \"Chen, Kenneth W\" \u003ckenneth.w.chen@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "90aef12e6dd609e1ad7fb70044eedc78ca55ee5e", "tree": "35ff39f80d010c548df660d3a3e53c5861741777", "parents": [ "74c383f1400f559562aa517d6d62f77245bddf52" ], "author": { "name": "Jeremy Fitzhardinge", "email": "jeremy@goop.org", "time": "Wed Dec 13 00:34:49 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Wed Dec 13 09:05:51 2006 -0800" }, "message": "[PATCH] Use activate_mm() in fs/aio.c:use_mm()\n\nactivate_mm() is not the right thing to be using in use_mm(). It should be\nswitch_mm().\n\nOn normal x86, they\u0027re synonymous, but for the Xen patches I\u0027m adding a\nhook which assumes that activate_mm is only used the first time a new mm\nis used after creation (I have another hook for dealing with dup_mm). I\nthink this use of activate_mm() is the only place where it could be used\na second time on an mm.\n\n\u003eFrom a quick look at the other architectures I think this is OK (most\nsimply implement one in terms of the other), but some are doing some\nsubtly different stuff between the two.\n\nAcked-by: David Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "97d2a80584b30b5cd32da411deca1986ef61877a", "tree": "b9c9c874c0a3fd88f2420a9b68b39306400e5809", "parents": [ "b62e8ec2ac580b47c11eb76e8852ac1ec7d617cd" ], "author": { "name": "Benjamin LaHaise", "email": "bcrl@kvack.org", "time": "Wed Dec 06 20:40:45 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:46 2006 -0800" }, "message": "[PATCH] aio: remove ki_retried debugging member\n\nRemove the ki_retried member from struct kiocb. I think the idea was\nbounced around a while back, but Arnaldo pointed out another reason that we\nshould dig it up when he pointed out that the last cacheline of struct\nkiocb only contains 4 bytes. By removing the debugging member, we save\nmore than the 8 byte on 64 bit machines.\n\nSigned-off-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nAcked-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nAcked-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b62e8ec2ac580b47c11eb76e8852ac1ec7d617cd", "tree": "4fe334645cc47277ddac8be16b16e03b6d9dae66", "parents": [ "85916f8166b59eeac63d2b4f7f1df8de849334b4" ], "author": { "name": "Chen, Kenneth W", "email": "kenneth.w.chen@intel.com", "time": "Wed Dec 06 20:40:43 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:46 2006 -0800" }, "message": "[PATCH] aio: kill pointless ki_nbytes assignment in aio_setup_single_vector\n\nio_submit_one assigns ki_left \u003d ki_nbytes \u003d iocb-\u003eaio_nbytes, then calls\ndown to aio_setup_iocb, then to aio_setup_single_vector. In there,\nki_nbytes is reassigned to the same value it got two call stack above it.\nThere is no need to do so.\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nAcked-by: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\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": "4c1ac1b49122b805adfa4efc620592f68dccf5db", "tree": "87557f4bc2fd4fe65b7570489c2f610c45c0adcd", "parents": [ "c4028958b6ecad064b1a6303a6a5906d4fe48d73", "d916faace3efc0bf19fe9a615a1ab8fa1a24cd93" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue Dec 05 14:37:56 2006 +0000" }, "committer": { "name": "David Howells", "email": "dhowells@warthog.cambridge.redhat.com", "time": "Tue Dec 05 14:37:56 2006 +0000" }, "message": "Merge branch \u0027master\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6\n\nConflicts:\n\n\tdrivers/infiniband/core/iwcm.c\n\tdrivers/net/chelsio/cxgb2.c\n\tdrivers/net/wireless/bcm43xx/bcm43xx_main.c\n\tdrivers/net/wireless/prism54/islpci_eth.c\n\tdrivers/usb/core/hub.h\n\tdrivers/usb/input/hid-core.c\n\tnet/core/netpoll.c\n\nFix up merge failures with Linus\u0027s head and fix new compilation failures.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "93e06b4140cc018826bce4d97b0bf7c9ba05ae6e", "tree": "784cacb45d99f7fc5fe15f378240f1042ae4e495", "parents": [ "d99c5909859625f3c9c6dfee6caa3b2a7c0ef163" ], "author": { "name": "Eric Sesterhenn", "email": "snakebyte@gmx.de", "time": "Thu Nov 30 05:29:23 2006 +0100" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Thu Nov 30 05:29:23 2006 +0100" }, "message": "BUG_ON conversion for fs/aio.c\n\nThis patch converts a if () BUG(); construct to BUG_ON();\nwhich occupies less space, uses unlikely and is safer when\nBUG() is disabled.\n\nSigned-off-by: Eric Sesterhenn \u003csnakebyte@gmx.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "65f27f38446e1976cc98fd3004b110fedcddd189", "tree": "68f8be93feae31dfa018c22db392a05546b63ee1", "parents": [ "365970a1ea76d81cb1ad2f652acb605f06dae256" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:55:48 2006 +0000" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:55:48 2006 +0000" }, "message": "WorkStruct: Pass the work_struct pointer instead of context data\n\nPass the work_struct pointer to the work function rather than context data.\nThe work function can use container_of() to work out the data.\n\nFor the cases where the container of the work_struct may go away the moment the\npending bit is cleared, it is made possible to defer the release of the\nstructure by deferring the clearing of the pending bit.\n\nTo make this work, an extra flag is introduced into the management side of the\nwork_struct. This governs auto-release of the structure upon execution.\n\nOrdinarily, the work queue executor would release the work_struct for further\nscheduling or deallocation by clearing the pending bit prior to jumping to the\nwork function. This means that, unless the driver makes some guarantee itself\nthat the work_struct won\u0027t go away, the work function may not access anything\nelse in the work_struct or its container lest they be deallocated.. This is a\nproblem if the auxiliary data is taken away (as done by the last patch).\n\nHowever, if the pending bit is *not* cleared before jumping to the work\nfunction, then the work function *may* access the work_struct and its container\nwith no problems. But then the work function must itself release the\nwork_struct by calling work_release().\n\nIn most cases, automatic release is fine, so this is the default. Special\ninitiators exist for the non-auto-release case (ending in _NAR).\n\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "52bad64d95bd89e08c49ec5a071fa6dcbe5a1a9c", "tree": "5849b4e3c17daa70a7e81cfdeaddac9ac8a0e953", "parents": [ "0f9005a6f7a82f4aacbd72f7b92322a8ca1c3f97" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:54:01 2006 +0000" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Nov 22 14:54:01 2006 +0000" }, "message": "WorkStruct: Separate delayable and non-delayable events.\n\nSeparate delayable work items from non-delayable work items be splitting them\ninto a separate structure (delayed_work), which incorporates a work_struct and\nthe timer_list removed from work_struct.\n\nThe work_struct struct is huge, and this limits it\u0027s usefulness. On a 64-bit\narchitecture it\u0027s nearly 100 bytes in size. This reduces that by half for the\nnon-delayable type of event.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "691578cd558e647dd89ae5bc74a2307bce821186", "tree": "dcb4d7a06e46688cc7e3d5be064fec8a4e65dc6b", "parents": [ "3a0f5bbb1a36ed113065099d3dc69a66e1c8d567" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Tue Oct 03 01:16:04 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Oct 03 08:04:19 2006 -0700" }, "message": "[PATCH] pr_debug: aio: use size_t length modifier in pr_debug format arguments\n\naio: use size_t length modifier in pr_debug format arguments\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "eed4e51fb60c3863c134a5e9f6006b29805ead97", "tree": "edb0a80d75c454ad77001f3bd1a87933cbcff53f", "parents": [ "543ade1fc901db4c3dbe9fb27241fb977f1f3eea" ], "author": { "name": "Badari Pulavarty", "email": "pbadari@us.ibm.com", "time": "Sat Sep 30 23:28:49 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 01 00:39:29 2006 -0700" }, "message": "[PATCH] Add vector AIO support\n\nThis work is initially done by Zach Brown to add support for vectored aio.\nThese are the core changes for AIO to support\nIOCB_CMD_PREADV/IOCB_CMD_PWRITEV.\n\n[akpm@osdl.org: huge build fix]\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nAcked-by: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "027445c37282bc1ed26add45e573ad2d3e4860a5", "tree": "93eab101a938ffebaea64703033c8649df4d73f0", "parents": [ "9ea0f9499d15c49df23e7aac4332d830c40e12d0" ], "author": { "name": "Badari Pulavarty", "email": "pbadari@us.ibm.com", "time": "Sat Sep 30 23:28:46 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 01 00:39:28 2006 -0700" }, "message": "[PATCH] Vectorize aio_read/aio_write fileop methods\n\nThis patch vectorizes aio_read() and aio_write() methods to prepare for\ncollapsing all aio \u0026 vectored operations into one interface - which is\naio_read()/aio_write().\n\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Michael Holzheu \u003cHOLZHEU@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d6e05edc59ecd79e8badf440c0d295a979bdfa3e", "tree": "50362161f69317242ab603c51a18a818a4c93285", "parents": [ "f18190bd3407554ba6df30a1927e07e6cba93e56" ], "author": { "name": "Andreas Mohr", "email": "andi@lisas.de", "time": "Mon Jun 26 18:35:02 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Jun 26 18:35:02 2006 +0200" }, "message": "spelling fixes\n\nacquired (aquired)\ncontiguous (contigious)\nsuccessful (succesful, succesfull)\nsurprise (suprise)\nwhether (weather)\nsome other misspellings\n\nSigned-off-by: Andreas Mohr \u003candi@lisas.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "626ab0e69d376fa07599af669af8ba92d58e87c1", "tree": "a995e0231e61fab63568bc7bade81dc20c1dae09", "parents": [ "54e73770357142e297c916c7865f5fca7499f69c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jun 23 02:05:55 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:43:07 2006 -0700" }, "message": "[PATCH] list: use list_replace_init() instead of list_splice_init()\n\nlist_splice_init(list, head) does unneeded job if it is known that\nlist_empty(head) \u003d\u003d 1. We can use list_replace_init() instead.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "11b0b5abb2097a63c1081d9b7e825b987b227972", "tree": "162c828c8d807a1b30869acbe11682dc9222dc16", "parents": [ "656bde5728b824ca23fcab8bc5800b309ea48d64" ], "author": { "name": "Oliver Neukum", "email": "neukum@fachschaft.cup.uni-muenchen.de", "time": "Sat Mar 25 03:08:13 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 25 08:23:00 2006 -0800" }, "message": "[PATCH] use kzalloc and kcalloc in core fs code\n\nSigned-off-by: Oliver Neukum \u003coliver@neukum.name\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "095975da26dba21698582e91e96be10f7417333f", "tree": "ce1ffac556d394ef56a18faa97d38f79b07f31e2", "parents": [ "a57004e1afb6ee03c509f1b1ec74a000682ab93b" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sun Jan 08 01:02:19 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:48 2006 -0800" }, "message": "[PATCH] rcu file: use atomic primitives\n\nUse atomic_inc_not_zero for rcu files instead of special case rcuref.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: \"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": "d00689af6b3b6ba9e1fdefec3bd62edc860c385d", "tree": "823a0998010a3074f8ae3cd0874de0cb91be719c", "parents": [ "20dcae32439384b6863c626bb3b2a09bed65b33e" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Sun Nov 13 16:07:34 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:16 2005 -0800" }, "message": "[PATCH] aio: replace locking comments with assert_spin_locked()\n\naio: replace locking comments with assert_spin_locked()\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "20dcae32439384b6863c626bb3b2a09bed65b33e", "tree": "9750c39119447fb32963448bf1935e1ba22b2f9d", "parents": [ "4557398f8cbaf9f254cff747534b4724c7f75c4f" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Sun Nov 13 16:07:33 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:16 2005 -0800" }, "message": "[PATCH] aio: remove kioctx from mm_struct\n\nSync iocbs have a life cycle that don\u0027t need a kioctx. Their retrying, if\nany, is done in the context of their owner who has allocated them on the\nstack.\n\nThe sole user of a sync iocb\u0027s ctx reference was aio_complete() checking for\nan elevated iocb ref count that could never happen. No path which grabs an\niocb ref has access to sync iocbs.\n\nIf we were to implement sync iocb cancelation it would be done by the owner of\nthe iocb using its on-stack reference.\n\nRemoving this chunk from aio_complete allows us to remove the entire kioctx\ninstance from mm_struct, reducing its size by a third. On a i386 testing box\nthe slab size went from 768 to 504 bytes and from 5 to 8 per page.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d55b5fdaf40846221d543937b786956e27837fda", "tree": "ecdf572d7d2b08b4f7b31d804542a920934b6d9a", "parents": [ "0f6ed7c2641fe4cea83cd09c21928ca30c0983ec" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Mon Nov 07 00:59:31 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:38 2005 -0800" }, "message": "[PATCH] aio: remove aio_max_nr accounting race\n\nAIO was adding a new context\u0027s max requests to the global total before\ntesting if that resulting total was over the global limit. This let\ninnocent tasks get their new limit tested along with a racing guilty task\nthat was crossing the limit. This serializes the _nr accounting with a\nspinlock It also switches to using unsigned long for the global totals.\nIndividual contexts are still limited to an unsigned int\u0027s worth of\nrequests by the syscall interface.\n\nThe problem and fix were verified with a simple program that spun creating\nand destroying a context while holding on to another long lived context.\nBefore the patch a task creating a tiny context could get a spurious EAGAIN\nif it raced with a task creating a very large context that overran the\nlimit.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8766ce41018a0cb80fbe0ce7dbf747f357c752da", "tree": "68daf47f292ef79987f208db8f4d2dabfec7fb57", "parents": [ "a991304496bdaec09f497d1eb5d9dcf2f94b7d5d" ], "author": { "name": "Kostik Belousov", "email": "konstantin.belousov@zoral.com.ua", "time": "Sun Oct 23 12:57:13 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 23 16:38:38 2005 -0700" }, "message": "[PATCH] aio syscalls are not checked by lsm\n\nAnother case of missing call to security_file_permission: aio functions\n(namely, io_submit) does not check credentials with security modules.\n\nBelow is the simple patch to the problem. It seems that it is enough to\ncheck for rights at the request submission time.\n\nSigned-off-by: Kostik Belousov \u003ckostikbel@gmail.com\u003e\nSigned-off-by: Chris Wright \u003cchrisw@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4faa5285283fad081443e3612ca426a311bb6c7e", "tree": "f5178184a94fb8343afee94a5b7cd47c05a2bc49", "parents": [ "e7507ed91e093b9e4e218e41ebfdce05458258fc" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Mon Oct 17 16:43:33 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 17 17:03:57 2005 -0700" }, "message": "[PATCH] aio: revert lock_kiocb()\n\nlock_kiocb() was introduced to serialize retrying and cancellation. In the\nprocess of doing so it tried to sleep waiting for KIF_LOCKED while holding\nthe ctx_lock spinlock. Recent fixes have ensured that multiple concurrent\nretries won\u0027t be attempted for a given iocb. Cancel has other problems and\nhas no significant in-tree users that have been complaining about it. So\nfor the immediate future we\u0027ll revert sleeping with the lock held and will\naddress proper cancellation and retry serialization in the future.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "353fb07e2043d2df12dddf4e2c39552d0ab9b026", "tree": "a93c6f5a88bf9c7382ccc7a08424e58ed1fec2e3", "parents": [ "897f15fb587fd2772b9e7ff6ec0265057f3c3975" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Fri Sep 30 11:58:56 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 30 12:41:17 2005 -0700" }, "message": "[PATCH] aio: avoid extra aio_{read,write} call when ki_left \u003d\u003d 0\n\nRecently aio_p{read,write} changed to perform retries internally rather\nthan returning -EIOCBRETRY. This inadvertantly resulted in always calling\naio_{read,write} with ki_left at 0 which would in turn immediately return\n0. Harmless, but we can avoid this call by checking in the caller.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Benjamin LaHaise \u003cbcrl@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "897f15fb587fd2772b9e7ff6ec0265057f3c3975", "tree": "d975ce5f131b8f42915cf264122cd265661651e0", "parents": [ "998765e5588b197737d457e16f72832d8036190f" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Fri Sep 30 11:58:55 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 30 12:41:17 2005 -0700" }, "message": "[PATCH] aio: remove unlocked task_list test and resulting race\n\nOnly one of the run or kick path is supposed to put an iocb on the run\nlist. If both of them do it than one of them can end up referencing a\nfreed iocb. The kick path could delete the task_list item from the wait\nqueue before getting the ctx_lock and putting the iocb on the run list.\nThe run path was testing the task_list item outside the lock so that it\ncould catch ki_retry methods that return -EIOCBRETRY *without* putting the\niocb on a wait queue and promising to call kick_iocb. This unlocked check\ncould then race with the kick path to cause both to try and put the iocb on\nthe run list.\n\nThe patch stops the run path from testing task_list by requring that any\nki_retry that returns -EIOCBRETRY *must* guarantee that kick_iocb() will be\ncalled in the future. aio_p{read,write}, the only in-tree -EIOCBRETRY\nusers, are updated.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Benjamin LaHaise \u003cbcrl@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "998765e5588b197737d457e16f72832d8036190f", "tree": "3a87877bffebc776a7102ab1b5f247a45d1c4ab3", "parents": [ "6e3254c4e2927c117044a02acf5f5b56e1373053" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Fri Sep 30 11:58:54 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 30 12:41:17 2005 -0700" }, "message": "[PATCH] aio: lock around kiocbTryKick()\n\nOnly one of the run or kick path is supposed to put an iocb on the run\nlist. If both of them do it than one of them can end up referencing a\nfreed iocb. The kick patch could set the Kicked bit before acquiring the\nctx_lock and putting the iocb on the run list. The run path, while holding\nthe ctx_lock, could see this partial kick and mistake it for a kick that\nwas deferred while it was doing work with the run_list NULLed out. It\nwould then race with the kick thread to add the iocb to the run list.\n\nThis patch moves the kick setting under the ctx_lock so that only one of\nthe kick or run path queues the iocb on the run list, as intended.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nSigned-off-by: Benjamin LaHaise \u003cbcrl@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a464adeb7e8f1cd65ca911e20a7c02e452dc2c17", "tree": "f55ea0606247dd2fef36905c9ae817060cfae149", "parents": [ "8ac2120d90273c590cf7662f03d103519101685b" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Fri Sep 16 19:28:09 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Sep 17 11:50:02 2005 -0700" }, "message": "[PATCH] Add smp_mb__after_clear_bit() to unlock_kiocb()\n\nAdd smp_mb__after_clear_bit() to unlock_kiocb()\n\nAIO\u0027s use of wait_on_bit_lock()/wake_up_bit() forgot to add a barrier\nbetween clearing its lock bit and calling wake_up_bit() so wake_up_bit()\u0027s\nunlocked waitqueue_active() can race. This puts AIO\u0027s use in line with the\nothers and the comment above wake_up_bit().\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ab2af1f5005069321c5d130f09cce577b03f43ef", "tree": "73a70ba486f522cd9eeeef376ede2b5a1c1b473b", "parents": [ "6e72ad2c581de121cc7e772469e2a8f6b1fd4379" ], "author": { "name": "Dipankar Sarma", "email": "dipankar@in.ibm.com", "time": "Fri Sep 09 13:04:13 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 13:57:55 2005 -0700" }, "message": "[PATCH] files: files struct with RCU\n\nPatch to eliminate struct files_struct.file_lock spinlock on the reader side\nand use rcu refcounting rcuref_xxx api for the f_count refcounter. The\nupdates to the fdtable are done by allocating a new fdtable structure and\nsetting files-\u003efdt to point to the new structure. The fdtable structure is\nprotected by RCU thereby allowing lock-free lookup. For fd arrays/sets that\nare vmalloced, we use keventd to free them since RCU callbacks can\u0027t sleep. A\nglobal list of fdtable to be freed is not scalable, so we use a per-cpu list.\nIf keventd is already handling the current cpu\u0027s work, we use a timer to defer\nqueueing of that work.\n\nSince the last publication, this patch has been re-written to avoid using\nexplicit memory barriers and use rcu_assign_pointer(), rcu_dereference()\npremitives instead. This required that the fd information is kept in a\nseparate structure (fdtable) and updated atomically.\n\nSigned-off-by: 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": "ac0b1bc1edbe81c0cb36cad7e7f5b91f4d9e12ed", "tree": "b982e728eafeebc226882f91482ff7d0d9ee5cc3", "parents": [ "8f58202bf6b915656e116ece3bc4ace14bfe533a" ], "author": { "name": "Benjamin LaHaise", "email": "bcrl@linux.intel.com", "time": "Fri Sep 09 13:02:09 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 13:57:32 2005 -0700" }, "message": "[PATCH] aio: kiocb locking to serialise retry and cancel\n\nImplement a per-kiocb lock to serialise retry operations and cancel. This\nis done using wait_on_bit_lock() on the KIF_LOCKED bit of kiocb-\u003eki_flags.\nAlso, make the cancellation path lock the kiocb and subsequently release\nall references to it if the cancel was successful. This version includes a\nfix for the deadlock with __aio_run_iocbs.\n\nSigned-off-by: Benjamin LaHaise \u003cbcrl@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8f58202bf6b915656e116ece3bc4ace14bfe533a", "tree": "a50d0a3e3b1f7593557fa06379ac4b284717e87c", "parents": [ "6f519165a97924ab3eeb99f388718d12ff97f1f4" ], "author": { "name": "Wendy Cheng", "email": "wcheng@redhat.com", "time": "Fri Sep 09 13:02:08 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 13:57:32 2005 -0700" }, "message": "[PATCH] change io_cancel return code for no cancel case\n\nNote that other than few exceptions, most of the current filesystem and/or\ndrivers do not have aio cancel specifically defined (kiob-\u003eki_cancel field\nis mostly NULL). However, sys_io_cancel system call universally sets\nreturn code to -EAGAIN. This gives applications a wrong impression that\nthis call is implemented but just never works. We have customer inquires\nabout this issue.\n\nChanged by Benjamin LaHaise to EINVAL instead of ENOSYS\n\nSigned-off-by: S. Wendy Cheng \u003cwcheng@redhat.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1e40cd383ccc7c9f8b338c56ce28c326e25eb2fe", "tree": "8dab0fb849ccc25febf6c8f8865094141a50b8d2", "parents": [ "ed1b58d8b53519e10a35c6a2bb49cac35f439621" ], "author": { "name": "Paolo \u0027Blaisorblade\u0027 Giarrusso", "email": "blaisorblade@yahoo.it", "time": "Sat Sep 03 15:57:25 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:06:21 2005 -0700" }, "message": "[PATCH] uml: fixes performance regression in activate_mm and thus exec()\n\nNormally, activate_mm() is called from exec(), and thus it used to be a\nno-op because we use a completely new \"MM context\" on the host (for\ninstance, a new process), and so we didn\u0027t need to flush any \"TLB entries\"\n(which for us are the set of memory mappings for the host process from the\nvirtual \"RAM\" file).\n\nKernel threads, instead, are usually handled in a different way. So, when\nfor AIO we call use_mm(), things used to break and so Benjamin implemented\nactivate_mm(). However, that is only needed for AIO, and could slow down\nexec() inside UML, so be smart: detect being called for AIO (via\nPF_BORROWED_MM) and do the full flush only in that situation.\n\nComment also the caller so that people won\u0027t go breaking UML without\nnoticing. I also rely on the caller\u0027s locks for testing current-\u003eflags.\n\nSigned-off-by: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCC: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c016e2257acd00a7ffd87fa1eec896138563d1aa", "tree": "aa22df355afe2be5b5476c1c6d26da99e47836fc", "parents": [ "334a13ec3d01a1a4b4f2249735b793105cb4a519" ], "author": { "name": "Sébastien Dugu", "email": "sebastien.dugue@bull.net", "time": "Tue Jun 28 20:44:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Tue Jun 28 21:20:32 2005 -0700" }, "message": "[PATCH] aio-retry-fix: fix aio retry work queueing\n\nIn the case of buffered AIO, in the aio retry path (aio_run_iocb), when the\nretry method returns EIOCBRETRY the kicked iocb is added to the context run\nlist but is never queued onto the work queue. The request therefore is\nnever completed.\n\nThis patch fixes that by adding the appropriate call to aio_queue_work in\naio_run_aiocb so that subsequent retries will be handled by the aio worker\nthread.\n\nSigned-off-by: Sébastien Dugué \u003csebastien.dugue@bull.net\u003e\nAcked-by: Benjamin LaHaise \u003cbenjamin.c.lahaise@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "954d3e95369cf73b4bc1e570729f68264a0e6fe0", "tree": "542c6435428848f02a0eb060a83b3dd1a7f90083", "parents": [ "644d3a088a3b862ed0b57c286cf58a6bd338ce08" ], "author": { "name": "Ken Chen", "email": "kenneth.w.chen@intel.com", "time": "Sun May 01 08:59:16 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sun May 01 08:59:16 2005 -0700" }, "message": "[PATCH] aio: optimize io_submit_one()\n\nThis patch optimizes io_submit_one to call aio_run_iocb() directly if\nctx-\u003erun_list is empty. When the list is empty, the operation of adding to\nthe list, then call to __aio_run_iocbs() is unnecessary because these\noperations are done in one atomic step. ctx-\u003erun_list always has only one\nelement in this case. This optimization speeds up industry standard db\ntransaction processing benchmark by 0.2%.\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "644d3a088a3b862ed0b57c286cf58a6bd338ce08", "tree": "f5373e9265c7518a29a92a97510fdc5993855661", "parents": [ "4bf69b2a06090c01c27f25ea5cd1440f7bf9256f" ], "author": { "name": "Ken Chen", "email": "kenneth.w.chen@intel.com", "time": "Sun May 01 08:59:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sun May 01 08:59:15 2005 -0700" }, "message": "[PATCH] aio: clean up debug code\n\nClean up code that was previously used for debug purpose. Remove aio_run,\naio_wakeups, iocb-\u003eki_queued and iocb-\u003eki_kicked. Also clean up unused\nvariable count in __aio_run_iocbs() and debug code in read_events().\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4bf69b2a06090c01c27f25ea5cd1440f7bf9256f", "tree": "35bed1e865ee9f8b086954d866cee9c1c2b92b0f", "parents": [ "212079cf4ee99e492a57b817e796825d423a30bb" ], "author": { "name": "Ken Chen", "email": "kenneth.w.chen@intel.com", "time": "Sun May 01 08:59:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sun May 01 08:59:15 2005 -0700" }, "message": "[PATCH] aio: ring wrapping simplification\n\nSince the tail pointer in aio_ring structure never wrap ring size more than\nonce, so a simple compare is sufficient to wrap the index around. This avoid\na more expensive mod operation.\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "212079cf4ee99e492a57b817e796825d423a30bb", "tree": "58f54e75ec697f89ba12b39614e937bb374a451d", "parents": [ "efcd5e3ab089496865571d22443dd3f514dae60c" ], "author": { "name": "Ken Chen", "email": "kenneth.w.chen@intel.com", "time": "Sun May 01 08:59:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sun May 01 08:59:15 2005 -0700" }, "message": "[PATCH] aio: remove superfluous kiocb member initialization\n\nThis patch removes superfluous kiocb member initialization in the AIO\nallocation and deallocation path. For example, in really_put_req(),\nright before kiocb is returned to slab, 5 variables are reset to NULL.\nThe same variables will be initialized at the kiocb allocation time,\nso why bother reset them knowing that they will be set to valid data\nat alloc time? Another example: ki_retry is initialized in __aio_get_req,\nbut is initialized again in io_submit_one.\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nCc: Suparna Bhattacharya \u003csuparna@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "25ee7e3832951cf5896b194f6cd929a44863f419", "tree": "5b6486ded5188e41ac9bc81ad4a5e2bd746f7ede", "parents": [ "056de2fa12febe02597f971eb6ea8f2cc9c9b06e" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Apr 25 08:18:14 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Mon Apr 25 08:18:14 2005 -0700" }, "message": "[PATCH] fs/aio.c: make some code static\n\nThis patch makes some needlessly global code static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }