)]}' { "log": [ { "commit": "4b19449db074eec86ae31a96d3cdca4aa7f138ab", "tree": "3316e76279fee09aff54ad18c6f808919b93a472", "parents": [ "395108880efff4a4ffa1ffa554477f7f5ba6a031" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:21 2009 -0700" }, "message": "epoll keyed wakeups: make tty use keyed wakeups\n\nIntroduce keyed event wakeups inside the TTY code.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@movementarian.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "395108880efff4a4ffa1ffa554477f7f5ba6a031", "tree": "7d5797145d54b6cd8752eb2a6b1fd934336a005f", "parents": [ "2dfa4eeab0fc7e8633974f2770945311b31eedf6" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:23 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "epoll keyed wakeups: make eventfd use keyed wakeups\n\nIntroduce keyed event wakeups inside the eventfd code.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@movementarian.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2dfa4eeab0fc7e8633974f2770945311b31eedf6", "tree": "de372dc3955bb8ab2dec1b50f4292f367fa4e22f", "parents": [ "37e5540b3c9d838eb20f2ca8ea2eb8072271e403" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "epoll keyed wakeups: teach epoll about hints coming with the wakeup key\n\nUse the events hint now sent by some devices, to avoid unnecessary wakeups\nfor events that are of no interest for the caller. This code handles both\ndevices that are sending keyed events, and the ones that are not (and\nevent the ones that sometimes send events, and sometimes don\u0027t).\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@movementarian.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "37e5540b3c9d838eb20f2ca8ea2eb8072271e403", "tree": "f1788aef6d73d2334e739da7ca87f2900285c262", "parents": [ "c0da37753695e010776ccf2200a5731e0f88a9f3" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "epoll keyed wakeups: make sockets use keyed wakeups\n\nAdd support for event-aware wakeups to the sockets code. Events are\ndelivered to the wakeup target, so that epoll can avoid spurious wakeups\nfor non-interesting events.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nAcked-by: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@movementarian.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c0da37753695e010776ccf2200a5731e0f88a9f3", "tree": "4bcc83b718a284808d01929b662ee95fb0c49e8b", "parents": [ "4ede816ac36e027db5fe0051ad9c73f76db63772" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "epoll keyed wakeups: introduce new *_poll() wakeup macros\n\nIntroduce new wakeup macros that allow passing an event mask to the wakeup\ntargets. They exactly mimic their non-_poll() counterpart, with the added\nevent mask passing capability. I did add only the ones currently\nrequested, avoiding the _nr() and _all() for the moment.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@movementarian.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4ede816ac36e027db5fe0051ad9c73f76db63772", "tree": "6c79eae26067c2355a2d4c7e65bca84208a76c40", "parents": [ "bcd0b235bf3808dec5115c381cd55568f63b85f0" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "epoll keyed wakeups: add __wake_up_locked_key() and __wake_up_sync_key()\n\nThis patchset introduces wakeup hints for some of the most popular (from\nepoll POV) devices, so that epoll code can avoid spurious wakeups on its\nwaiters.\n\nThe problem with epoll is that the callback-based wakeups do not, ATM,\ncarry any information about the events the wakeup is related to. So the\nonly choice epoll has (not being able to call f_op-\u003epoll() from inside the\ncallback), is to add the file* to a ready-list and resolve the real events\nlater on, at epoll_wait() (or its own f_op-\u003epoll()) time. This can cause\nspurious wakeups, since the wake_up() itself might be for an event the\ncaller is not interested into.\n\nThe rate of these spurious wakeup can be pretty high in case of many\nnetwork sockets being monitored.\n\nBy allowing devices to report the events the wakeups refer to (at least\nthe two major classes - POLLIN/POLLOUT), we are able to spare useless\nwakeups by proper handling inside the epoll\u0027s poll callback.\n\nEpoll will have in any case to call f_op-\u003epoll() on the file* later on,\nsince the change to be done in order to have the full event set sent via\nwakeup, is too invasive for the way our f_op-\u003epoll() system works (the\nfull event set is calculated inside the poll function - there are too many\nof them to even start thinking the change - also poll/select would need\nchange too).\n\nEpoll is changed in a way that both devices which send event hints, and\nthe ones that don\u0027t, are correctly handled. The former will gain some\nefficiency though.\n\nAs a general rule for devices, would be to add an event mask by using\nkey-aware wakeup macros, when making up poll wait queues. I tested it\n(together with the epoll\u0027s poll fix patch Andrew has in -mm) and wakeups\nfor the supported devices are correctly filtered.\n\nTest program available here:\n\nhttp://www.xmailserver.org/epoll_test.c\n\nThis patch:\n\nNothing revolutionary here. Just using the available \"key\" that our\nwakeup core already support. The __wake_up_locked_key() was no brainer,\nsince both __wake_up_locked() and __wake_up_locked_key() are thin wrappers\naround __wake_up_common().\n\nThe __wake_up_sync() function had a body, so the choice was between\nborrowing the body for __wake_up_sync_key() and calling it from\n__wake_up_sync(), or make an inline and calling it from both. I chose the\nformer since in most archs it all resolves to \"mov $0, REG; jmp ADDR\".\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: William Lee Irwin III \u003cwli@movementarian.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bcd0b235bf3808dec5115c381cd55568f63b85f0", "tree": "d73c4aa83dcd5321d2c48e070020576098b9705e", "parents": [ "4f0989dbfa8d18dd17c32120aac1eb3e906a62a2" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "eventfd: improve support for semaphore-like behavior\n\nPeople started using eventfd in a semaphore-like way where before they\nwere using pipes.\n\nThat is, counter-based resource access. Where a \"wait()\" returns\nimmediately by decrementing the counter by one, if counter is greater than\nzero. Otherwise will wait. And where a \"post(count)\" will add count to\nthe counter releasing the appropriate amount of waiters. If eventfd the\n\"post\" (write) part is fine, while the \"wait\" (read) does not dequeue 1,\nbut the whole counter value.\n\nThe problem with eventfd is that a read() on the fd returns and wipes the\nwhole counter, making the use of it as semaphore a little bit more\ncumbersome. You can do a read() followed by a write() of COUNTER-1, but\nIMO it\u0027s pretty easy and cheap to make this work w/out extra steps. This\npatch introduces a new eventfd flag that tells eventfd to only dequeue 1\nfrom the counter, allowing simple read/write to make it behave like a\nsemaphore. Simple test here:\n\nhttp://www.xmailserver.org/eventfd-sem.c\n\nTo be back-compatible with earlier kernels, userspace applications should\nprobe for the availability of this feature via\n\n#ifdef EFD_SEMAPHORE\n\tfd \u003d eventfd2 (CNT, EFD_SEMAPHORE);\n\tif (fd \u003d\u003d -1 \u0026\u0026 errno \u003d\u003d EINVAL)\n\t\t\u003cfallback\u003e\n#else\n\t\t\u003cfallback\u003e\n#endif\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: \u003clinux-api@vger.kernel.org\u003e\nTested-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nCc: Ulrich Drepper \u003cdrepper@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": "4f0989dbfa8d18dd17c32120aac1eb3e906a62a2", "tree": "8b81c45c23ff2a598ed67c5732dfb0ca69693aa0", "parents": [ "e057e15ff66a620eda4c407486cbb8f8fbb7d878" ], "author": { "name": "Tony Battersby", "email": "tonyb@cybernetics.com", "time": "Tue Mar 31 15:24:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:20 2009 -0700" }, "message": "epoll: use real type instead of void *\n\neventpoll.c uses void * in one place for no obvious reason; change it to\nuse the real type instead.\n\nSigned-off-by: Tony Battersby \u003ctonyb@cybernetics.com\u003e\nAcked-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": "e057e15ff66a620eda4c407486cbb8f8fbb7d878", "tree": "aa9e15c13ce5882ca0f0b442eec71d99fec8a4ff", "parents": [ "d1bc90dd5d037079f96b3327f943eb6ae8ef7491" ], "author": { "name": "Tony Battersby", "email": "tonyb@cybernetics.com", "time": "Tue Mar 31 15:24:15 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:19 2009 -0700" }, "message": "epoll: clean up ep_modify\n\nep_modify() doesn\u0027t need to set event.data from within the ep-\u003elock\nspinlock as the comment suggests. The only place event.data is used is\nep_send_events_proc(), and this is protected by ep-\u003emtx instead of\nep-\u003elock. Also update the comment for mutex_lock() at the top of\nep_scan_ready_list(), which mentions epoll_ctl(EPOLL_CTL_DEL) but not\nepoll_ctl(EPOLL_CTL_MOD).\n\nep_modify() can also use spin_lock_irq() instead of spin_lock_irqsave().\n\nSigned-off-by: Tony Battersby \u003ctonyb@cybernetics.com\u003e\nAcked-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": "d1bc90dd5d037079f96b3327f943eb6ae8ef7491", "tree": "0380bd32cee23815b214d81a12b618140c544799", "parents": [ "d0305882825784e74f68a56eee6c3a812a99f235" ], "author": { "name": "Tony Battersby", "email": "tonyb@cybernetics.com", "time": "Tue Mar 31 15:24:15 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:19 2009 -0700" }, "message": "epoll: remove unnecessary xchg\n\nxchg in ep_unregister_pollwait() is unnecessary because it is protected by\neither epmutex or ep-\u003emtx (the same protection as ep_remove()).\n\nIf xchg was necessary, it would be insufficient to protect against\nproblems: if multiple concurrent calls to ep_unregister_pollwait() were\npossible then a second caller that returns without doing anything because\nnwait \u003d\u003d 0 could return before the waitqueues are removed by the first\ncaller, which looks like it could lead to problematic races with\nep_poll_callback().\n\nSo remove xchg and add comments about the locking.\n\nSigned-off-by: Tony Battersby \u003ctonyb@cybernetics.com\u003e\nAcked-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": "d0305882825784e74f68a56eee6c3a812a99f235", "tree": "a4dcfea753279e1f8f4e7cc8256a8f5c195341ce", "parents": [ "abff55cee1039b5a3b96f7a5eb6e65b9f247a274" ], "author": { "name": "Tony Battersby", "email": "tonyb@cybernetics.com", "time": "Tue Mar 31 15:24:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:19 2009 -0700" }, "message": "epoll: remember the event if epoll_wait returns -EFAULT\n\nIf epoll_wait returns -EFAULT, the event that was being returned when the\nfault was encountered will be forgotten. This is not a big deal since\nEFAULT will happen only if a buggy userspace program passes in a bad\naddress, in which case what happens later usually doesn\u0027t matter.\nHowever, it is easy to remember the event for later, and this patch makes\na simple change to do that.\n\nSigned-off-by: Tony Battersby \u003ctonyb@cybernetics.com\u003e\nAcked-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": "abff55cee1039b5a3b96f7a5eb6e65b9f247a274", "tree": "dfbcc71256c2129d2e0ee3e077461103338b9591", "parents": [ "bb57c3edcd2fc51d95914c39448f36e43af9d6af" ], "author": { "name": "Tony Battersby", "email": "tonyb@cybernetics.com", "time": "Tue Mar 31 15:24:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:19 2009 -0700" }, "message": "epoll: don\u0027t use current in irq context\n\nep_call_nested() (formerly ep_poll_safewake()) uses \"current\" (without\ndereferencing it) to detect callback recursion, but it may be called from\nirq context where the use of current is generally discouraged. It would\nbe better to use get_cpu() and put_cpu() to detect the callback recursion.\n\nSigned-off-by: Tony Battersby \u003ctonyb@cybernetics.com\u003e\nAcked-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": "bb57c3edcd2fc51d95914c39448f36e43af9d6af", "tree": "8d38edcdc5ef1f2694c3607829952f04ce266292", "parents": [ "296e236e96dddef351a1809c0d414bcddfcf3800" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:12 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:19 2009 -0700" }, "message": "epoll: remove debugging code\n\nRemove debugging code from epoll. There\u0027s no need for it to be included\ninto mainline code.\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": "296e236e96dddef351a1809c0d414bcddfcf3800", "tree": "279d6eb3f0114a49897cd4bbc0eaf43fffd46c6e", "parents": [ "5071f97ec6d74f006072de0ce89b67c8792fe5a1" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:11 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:19 2009 -0700" }, "message": "epoll: fix epoll\u0027s own poll (update)\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Pavel Pisa \u003cpisa@cmp.felk.cvut.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5071f97ec6d74f006072de0ce89b67c8792fe5a1", "tree": "cb20ebd79c6c146c73d321b4558f8176a0cf06c9", "parents": [ "3cdbbeebb77348176bd6a03fd86e11bc281c529e" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Mar 31 15:24:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:18 2009 -0700" }, "message": "epoll: fix epoll\u0027s own poll\n\nFix a bug inside the epoll\u0027s f_op-\u003epoll() code, that returns POLLIN even\nthough there are no actual ready monitored fds. The bug shows up if you\nadd an epoll fd inside another fd container (poll, select, epoll).\n\nThe problem is that callback-based wake ups used by epoll does not carry\n(patches will follow, to fix this) any information about the events that\nactually happened. So the callback code, since it can\u0027t call the file*\n-\u003epoll() inside the callback, chains the file* into a ready-list.\n\nSo, suppose you added an fd with EPOLLOUT only, and some data shows up on\nthe fd, the file* mapped by the fd will be added into the ready-list (via\nwakeup callback). During normal epoll_wait() use, this condition is\nsorted out at the time we\u0027re actually able to call the file*\u0027s\nf_op-\u003epoll().\n\nInside the old epoll\u0027s f_op-\u003epoll() though, only a quick check\n!list_empty(ready-list) was performed, and this could have led to\nreporting POLLIN even though no ready fds would show up at a following\nepoll_wait(). In order to correctly report the ready status for an epoll\nfd, the ready-list must be checked to see if any really available fd+event\nwould be ready in a following epoll_wait().\n\nOperation (calling f_op-\u003epoll() from inside f_op-\u003epoll()) that, like wake\nups, must be handled with care because of the fact that epoll fds can be\nadded to other epoll fds.\n\nTest code:\n\n/*\n * epoll_test by Davide Libenzi (Simple code to test epoll internals)\n * Copyright (C) 2008 Davide Libenzi\n *\n * This program is free software; you can redistribute it and/or modify\n * it under the terms of the GNU General Public License as published by\n * the Free Software Foundation; either version 2 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n * GNU General Public License for more details.\n *\n * You should have received a copy of the GNU General Public License\n * along with this program; if not, write to the Free Software\n * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n *\n * Davide Libenzi \u003cdavidel@xmailserver.org\u003e\n *\n */\n\n#include \u003csys/types.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cstdlib.h\u003e\n#include \u003cstring.h\u003e\n#include \u003cerrno.h\u003e\n#include \u003csignal.h\u003e\n#include \u003climits.h\u003e\n#include \u003cpoll.h\u003e\n#include \u003csys/epoll.h\u003e\n#include \u003csys/wait.h\u003e\n\n#define EPWAIT_TIMEO\t(1 * 1000)\n#ifndef POLLRDHUP\n#define POLLRDHUP 0x2000\n#endif\n\n#define EPOLL_MAX_CHAIN\t100L\n\n#define EPOLL_TF_LOOP (1 \u003c\u003c 0)\n\nstruct epoll_test_cfg {\n\tlong size;\n\tlong flags;\n};\n\nstatic int xepoll_create(int n) {\n\tint epfd;\n\n\tif ((epfd \u003d epoll_create(n)) \u003d\u003d -1) {\n\t\tperror(\"epoll_create\");\n\t\texit(2);\n\t}\n\n\treturn epfd;\n}\n\nstatic void xepoll_ctl(int epfd, int cmd, int fd, struct epoll_event *evt) {\n\tif (epoll_ctl(epfd, cmd, fd, evt) \u003c 0) {\n\t\tperror(\"epoll_ctl\");\n\t\texit(3);\n\t}\n}\n\nstatic void xpipe(int *fds) {\n\tif (pipe(fds)) {\n\t\tperror(\"pipe\");\n\t\texit(4);\n\t}\n}\n\nstatic pid_t xfork(void) {\n\tpid_t pid;\n\n\tif ((pid \u003d fork()) \u003d\u003d (pid_t) -1) {\n\t\tperror(\"pipe\");\n\t\texit(5);\n\t}\n\n\treturn pid;\n}\n\nstatic int run_forked_proc(int (*proc)(void *), void *data) {\n\tint status;\n\tpid_t pid;\n\n\tif ((pid \u003d xfork()) \u003d\u003d 0)\n\t\texit((*proc)(data));\n\tif (waitpid(pid, \u0026status, 0) !\u003d pid) {\n\t\tperror(\"waitpid\");\n\t\treturn -1;\n\t}\n\n\treturn WIFEXITED(status) ? WEXITSTATUS(status): -2;\n}\n\nstatic int check_events(int fd, int timeo) {\n\tstruct pollfd pfd;\n\n\tfprintf(stdout, \"Checking events for fd %d\\n\", fd);\n\tmemset(\u0026pfd, 0, sizeof(pfd));\n\tpfd.fd \u003d fd;\n\tpfd.events \u003d POLLIN | POLLOUT;\n\tif (poll(\u0026pfd, 1, timeo) \u003c 0) {\n\t\tperror(\"poll()\");\n\t\treturn 0;\n\t}\n\tif (pfd.revents \u0026 POLLIN)\n\t\tfprintf(stdout, \"\\tPOLLIN\\n\");\n\tif (pfd.revents \u0026 POLLOUT)\n\t\tfprintf(stdout, \"\\tPOLLOUT\\n\");\n\tif (pfd.revents \u0026 POLLERR)\n\t\tfprintf(stdout, \"\\tPOLLERR\\n\");\n\tif (pfd.revents \u0026 POLLHUP)\n\t\tfprintf(stdout, \"\\tPOLLHUP\\n\");\n\tif (pfd.revents \u0026 POLLRDHUP)\n\t\tfprintf(stdout, \"\\tPOLLRDHUP\\n\");\n\n\treturn pfd.revents;\n}\n\nstatic int epoll_test_tty(void *data) {\n\tint epfd, ifd \u003d fileno(stdin), res;\n\tstruct epoll_event evt;\n\n\tif (check_events(ifd, 0) !\u003d POLLOUT) {\n\t\tfprintf(stderr, \"Something is cooking on STDIN (%d)\\n\", ifd);\n\t\treturn 1;\n\t}\n\tepfd \u003d xepoll_create(1);\n\tfprintf(stdout, \"Created epoll fd (%d)\\n\", epfd);\n\tmemset(\u0026evt, 0, sizeof(evt));\n\tevt.events \u003d EPOLLIN;\n\txepoll_ctl(epfd, EPOLL_CTL_ADD, ifd, \u0026evt);\n\tif (check_events(epfd, 0) \u0026 POLLIN) {\n\t\tres \u003d epoll_wait(epfd, \u0026evt, 1, 0);\n\t\tif (res \u003d\u003d 0) {\n\t\t\tfprintf(stderr, \"Epoll fd (%d) is ready when it shouldn\u0027t!\\n\",\n\t\t\t\tepfd);\n\t\t\treturn 2;\n\t\t}\n\t}\n\n\treturn 0;\n}\n\nstatic int epoll_wakeup_chain(void *data) {\n\tstruct epoll_test_cfg *tcfg \u003d data;\n\tint i, res, epfd, bfd, nfd, pfds[2];\n\tpid_t pid;\n\tstruct epoll_event evt;\n\n\tmemset(\u0026evt, 0, sizeof(evt));\n\tevt.events \u003d EPOLLIN;\n\n\tepfd \u003d bfd \u003d xepoll_create(1);\n\n\tfor (i \u003d 0; i \u003c tcfg-\u003esize; i++) {\n\t\tnfd \u003d xepoll_create(1);\n\t\txepoll_ctl(bfd, EPOLL_CTL_ADD, nfd, \u0026evt);\n\t\tbfd \u003d nfd;\n\t}\n\txpipe(pfds);\n\tif (tcfg-\u003eflags \u0026 EPOLL_TF_LOOP)\n\t{\n\t\txepoll_ctl(bfd, EPOLL_CTL_ADD, epfd, \u0026evt);\n\t\t/*\n\t\t * If we\u0027re testing for loop, we want that the wakeup\n\t\t * triggered by the write to the pipe done in the child\n\t\t * process, triggers a fake event. So we add the pipe\n\t\t * read size with EPOLLOUT events. This will trigger\n\t\t * an addition to the ready-list, but no real events\n\t\t * will be there. The the epoll kernel code will proceed\n\t\t * in calling f_op-\u003epoll() of the epfd, triggering the\n\t\t * loop we want to test.\n\t\t */\n\t\tevt.events \u003d EPOLLOUT;\n\t}\n\txepoll_ctl(bfd, EPOLL_CTL_ADD, pfds[0], \u0026evt);\n\n\t/*\n\t * The pipe write must come after the poll(2) call inside\n\t * check_events(). This tests the nested wakeup code in\n\t * fs/eventpoll.c:ep_poll_safewake()\n\t * By having the check_events() (hence poll(2)) happens first,\n\t * we have poll wait queue filled up, and the write(2) in the\n\t * child will trigger the wakeup chain.\n\t */\n\tif ((pid \u003d xfork()) \u003d\u003d 0) {\n\t\tsleep(1);\n\t\twrite(pfds[1], \"w\", 1);\n\t\texit(0);\n\t}\n\n\tres \u003d check_events(epfd, 2000) \u0026 POLLIN;\n\n\tif (waitpid(pid, NULL, 0) !\u003d pid) {\n\t\tperror(\"waitpid\");\n\t\treturn -1;\n\t}\n\n\treturn res;\n}\n\nstatic int epoll_poll_chain(void *data) {\n\tstruct epoll_test_cfg *tcfg \u003d data;\n\tint i, res, epfd, bfd, nfd, pfds[2];\n\tpid_t pid;\n\tstruct epoll_event evt;\n\n\tmemset(\u0026evt, 0, sizeof(evt));\n\tevt.events \u003d EPOLLIN;\n\n\tepfd \u003d bfd \u003d xepoll_create(1);\n\n\tfor (i \u003d 0; i \u003c tcfg-\u003esize; i++) {\n\t\tnfd \u003d xepoll_create(1);\n\t\txepoll_ctl(bfd, EPOLL_CTL_ADD, nfd, \u0026evt);\n\t\tbfd \u003d nfd;\n\t}\n\txpipe(pfds);\n\tif (tcfg-\u003eflags \u0026 EPOLL_TF_LOOP)\n\t{\n\t\txepoll_ctl(bfd, EPOLL_CTL_ADD, epfd, \u0026evt);\n\t\t/*\n\t\t * If we\u0027re testing for loop, we want that the wakeup\n\t\t * triggered by the write to the pipe done in the child\n\t\t * process, triggers a fake event. So we add the pipe\n\t\t * read size with EPOLLOUT events. This will trigger\n\t\t * an addition to the ready-list, but no real events\n\t\t * will be there. The the epoll kernel code will proceed\n\t\t * in calling f_op-\u003epoll() of the epfd, triggering the\n\t\t * loop we want to test.\n\t\t */\n\t\tevt.events \u003d EPOLLOUT;\n\t}\n\txepoll_ctl(bfd, EPOLL_CTL_ADD, pfds[0], \u0026evt);\n\n\t/*\n\t * The pipe write mush come before the poll(2) call inside\n\t * check_events(). This tests the nested f_op-\u003epoll calls code in\n\t * fs/eventpoll.c:ep_eventpoll_poll()\n\t * By having the pipe write(2) happen first, we make the kernel\n\t * epoll code to load the ready lists, and the following poll(2)\n\t * done inside check_events() will test nested poll code in\n\t * ep_eventpoll_poll().\n\t */\n\tif ((pid \u003d xfork()) \u003d\u003d 0) {\n\t\twrite(pfds[1], \"w\", 1);\n\t\texit(0);\n\t}\n\tsleep(1);\n\tres \u003d check_events(epfd, 1000) \u0026 POLLIN;\n\n\tif (waitpid(pid, NULL, 0) !\u003d pid) {\n\t\tperror(\"waitpid\");\n\t\treturn -1;\n\t}\n\n\treturn res;\n}\n\nint main(int ac, char **av) {\n\tint error;\n\tstruct epoll_test_cfg tcfg;\n\n\tfprintf(stdout, \"\\n********** Testing TTY events\\n\");\n\terror \u003d run_forked_proc(epoll_test_tty, NULL);\n\tfprintf(stdout, error \u003d\u003d 0 ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\ttcfg.size \u003d 3;\n\ttcfg.flags \u003d 0;\n\tfprintf(stdout, \"\\n********** Testing short wakeup chain\\n\");\n\terror \u003d run_forked_proc(epoll_wakeup_chain, \u0026tcfg);\n\tfprintf(stdout, error \u003d\u003d POLLIN ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\ttcfg.size \u003d EPOLL_MAX_CHAIN;\n\ttcfg.flags \u003d 0;\n\tfprintf(stdout, \"\\n********** Testing long wakeup chain (HOLD ON)\\n\");\n\terror \u003d run_forked_proc(epoll_wakeup_chain, \u0026tcfg);\n\tfprintf(stdout, error \u003d\u003d 0 ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\ttcfg.size \u003d 3;\n\ttcfg.flags \u003d 0;\n\tfprintf(stdout, \"\\n********** Testing short poll chain\\n\");\n\terror \u003d run_forked_proc(epoll_poll_chain, \u0026tcfg);\n\tfprintf(stdout, error \u003d\u003d POLLIN ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\ttcfg.size \u003d EPOLL_MAX_CHAIN;\n\ttcfg.flags \u003d 0;\n\tfprintf(stdout, \"\\n********** Testing long poll chain (HOLD ON)\\n\");\n\terror \u003d run_forked_proc(epoll_poll_chain, \u0026tcfg);\n\tfprintf(stdout, error \u003d\u003d 0 ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\ttcfg.size \u003d 3;\n\ttcfg.flags \u003d EPOLL_TF_LOOP;\n\tfprintf(stdout, \"\\n********** Testing loopy wakeup chain (HOLD ON)\\n\");\n\terror \u003d run_forked_proc(epoll_wakeup_chain, \u0026tcfg);\n\tfprintf(stdout, error \u003d\u003d 0 ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\ttcfg.size \u003d 3;\n\ttcfg.flags \u003d EPOLL_TF_LOOP;\n\tfprintf(stdout, \"\\n********** Testing loopy poll chain (HOLD ON)\\n\");\n\terror \u003d run_forked_proc(epoll_poll_chain, \u0026tcfg);\n\tfprintf(stdout, error \u003d\u003d 0 ?\n\t\t\"********** OK\\n\": \"********** FAIL (%d)\\n\", error);\n\n\treturn 0;\n}\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Pavel Pisa \u003cpisa@cmp.felk.cvut.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3cdbbeebb77348176bd6a03fd86e11bc281c529e", "tree": "079d84c58cdb0e6f4d43eee69d42d26d5a48af35", "parents": [ "891f7d73ea30f925596b90bcf21020bfc5d90f3f" ], "author": { "name": "Daniel Mack", "email": "daniel@caiaq.de", "time": "Tue Mar 31 15:23:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:18 2009 -0700" }, "message": "drivers/misc/isl29003.c: driver for the ISL29003 ambient light sensor\n\nAdd a driver for Intersil\u0027s ISL29003 ambient light sensor device plus some\ndocumentation. Inspired by tsl2550.c, a driver for a similar device.\n\nIt is put in drivers/misc for now until the industrial I/O framework gets\nmerged.\n\nSigned-off-by: Daniel Mack \u003cdaniel@caiaq.de\u003e\nAcked-by: Jonathan Cameron \u003cjic23@cam.ac.uk\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "891f7d73ea30f925596b90bcf21020bfc5d90f3f", "tree": "ee2cf87038f657ead8e6df62acaa47f9805f0215", "parents": [ "63cd885426872254e82dac2d9e13ea4f720c21dc" ], "author": { "name": "David Altobelli", "email": "david.altobelli@hp.com", "time": "Tue Mar 31 15:23:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:18 2009 -0700" }, "message": "hpilo: reduce frequency of IO operations\n\nChange hpilo open and close logic to spin for 10usec between checking device,\nrather than every usec.\n\nBecause the loop is coded to take up to 10ms, it seemed prudent to\nincrease the interval between polling the device, to reduce the load on\nthe system and allow more other work to happen.\n\nSigned-off-by: David Altobelli \u003cdavid.altobelli@hp.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "63cd885426872254e82dac2d9e13ea4f720c21dc", "tree": "addd6687abbbcd428c179260737fc97b25b7aa64", "parents": [ "311d07611e8b354cc1ee6546e4c574c01111adc8" ], "author": { "name": "Harvey Harrison", "email": "harvey.harrison@gmail.com", "time": "Tue Mar 31 15:23:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:18 2009 -0700" }, "message": "ntfs: remove private wrapper of endian helpers\n\nThe base versions handle constant folding now and are shorter than these\nprivate wrappers, use them directly.\n\nSigned-off-by: Harvey Harrison \u003charvey.harrison@gmail.com\u003e\nCc: Anton Altaparmakov \u003caia21@cantab.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "311d07611e8b354cc1ee6546e4c574c01111adc8", "tree": "ec9cf9a12527a2239163b06ec61bad76ac2abadd", "parents": [ "acdd052a285a7b4cc7da4fa7d34ef9fd0a67b2f8" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Tue Mar 31 15:23:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:18 2009 -0700" }, "message": "introduce pr_cont() macro\n\nWe cover all log-levels by pr_... macros except KERN_CONT one. Add it\nfor convenience.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: 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": "acdd052a285a7b4cc7da4fa7d34ef9fd0a67b2f8", "tree": "4fc380d7556327cb65ec8441504f90df85a96cd4", "parents": [ "e0f7ad5f4f5056b20914a35d31abcf29036ca364" ], "author": { "name": "Hannes Eder", "email": "hannes@hanneseder.net", "time": "Tue Mar 31 15:23:50 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:18 2009 -0700" }, "message": "init/main.c: fix sparse warnings: context imbalance\n\nImpact: Attribute function \u0027init_post\u0027 with __releases(...).\n\nFix these sparse warnings:\n init/main.c:805:21: warning: context imbalance in \u0027init_post\u0027 - unexpected unlock\n init/main.c:899:9: warning: context imbalance in \u0027kernel_init\u0027 - wrong count at exit\n\nSigned-off-by: Hannes Eder \u003channes@hanneseder.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e0f7ad5f4f5056b20914a35d31abcf29036ca364", "tree": "f1f5579c10c59a65a58e163325909537c01d92de", "parents": [ "c0aa24ba8962bd1db98938fb2f3773f870896036" ], "author": { "name": "Michael Buesch", "email": "mb@bu3sch.de", "time": "Tue Mar 31 15:23:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "bcm47xx: fix GPIO API return codes\n\nThe GPIO API is supposed to return 0 or a negative error code,\nbut the SSB GPIO functions return the bitmask of the GPIO register.\nFix this by ignoring the bitmask and always returning 0. The SSB GPIO functions can\u0027t fail.\n\nSigned-off-by: Michael Buesch \u003cmb@bu3sch.de\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c0aa24ba8962bd1db98938fb2f3773f870896036", "tree": "a748cb5e4326c446611d30619366713cad5876f1", "parents": [ "fcd5e16286024360340eda61da4e2f5ec152b087" ], "author": { "name": "H Hartley Sweeten", "email": "hsweeten@visionengravers.com", "time": "Tue Mar 31 15:23:48 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "auxdisplay: remove PARPORT dependency\n\nRemove PARPORT dependency for Auxiliary Display support.\n\nThis is not needed since the dependency for the KS0108 driver is\nPARPORT_PC.\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nCc: Miguel Ojeda Sandonis \u003cmiguel.ojeda.sandonis@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": "fcd5e16286024360340eda61da4e2f5ec152b087", "tree": "edee20b502da23aee95a36e2c6daa35fb45b04d0", "parents": [ "c2d7543851849a6923680cdd7e1047ed1a84a1c5" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Tue Mar 31 15:23:47 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "remove unused include/asm-generic/dma-mapping.h\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nCc: James Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c2d7543851849a6923680cdd7e1047ed1a84a1c5", "tree": "bf3038819d4be83a1d1e64d7b95bbb3d9d908544", "parents": [ "55a63998b8967615a15e2211ba0ff3a84a565824" ], "author": { "name": "Eric Sandeen", "email": "sandeen@redhat.com", "time": "Tue Mar 31 15:23:46 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "filesystem freeze: allow SysRq emergency thaw to thaw frozen filesystems\n\nNow that the filesystem freeze operation has been elevated to the VFS, and\nis just an ioctl away, some sort of safety net for unintentionally frozen\nroot filesystems may be in order.\n\nThe timeout thaw originally proposed did not get merged, but perhaps\nsomething like this would be useful in emergencies.\n\nFor example, freeze /path/to/mountpoint may freeze your root filesystem if\nyou forgot that you had that unmounted.\n\nI chose \u0027j\u0027 as the last remaining character other than \u0027h\u0027 which is sort\nof reserved for help (because help is generated on any unknown character).\n\nI\u0027ve tested this on a non-root fs with multiple (nested) freezers, as well\nas on a system rendered unresponsive due to a frozen root fs.\n\n[randy.dunlap@oracle.com: emergency thaw only if CONFIG_BLOCK enabled]\nSigned-off-by: Eric Sandeen \u003csandeen@redhat.com\u003e\nCc: Takashi Sato \u003ct-sato@yk.jp.nec.com\u003e\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": "55a63998b8967615a15e2211ba0ff3a84a565824", "tree": "a83905577b60496a3ea9174bf29596f927354746", "parents": [ "53d6660836f233df66490707365ab177e5fb2bb4" ], "author": { "name": "Wolfram Strepp", "email": "wstrepp@gmx.de", "time": "Tue Mar 31 15:23:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "lib/rbtree.c: optimize rb_erase()\n\nTfour 4 redundant if-conditions in function __rb_erase_color() in\nlib/rbtree.c are removed.\n\nIn pseudo-source-code, the structure of the code is as follows:\n\nif ((!A || B) \u0026\u0026 (!C || D)) {\n\t.\n\t.\n\t.\n} else {\n\tif (!C || D) {//if this is true, it implies: (A \u003d\u003d true) \u0026\u0026 (B \u003d\u003d false)\n\t\tif (A) {//hence this always evaluates to \u0027true\u0027...\n\t\t\t.\n\t\t}\n\t\t.\n\t\t//at this point, C always becomes true, because of:\n\t\t__rb_rotate_right/left();\n\t\t//and:\n\t\tother \u003d parent-\u003erb_right/left;\n\t}\n\t.\n\t.\n\tif (C) {//...and this too !\n\t\t.\n\t}\n}\n\nSigned-off-by: Wolfram Strepp \u003cwstrepp@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Andrea Arcangeli \u003candrea@qumranet.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "53d6660836f233df66490707365ab177e5fb2bb4", "tree": "dad7eae486c0928af039f4bb47ee3dd7bb0ff87d", "parents": [ "65bd6a9bc7be3f5841dad12f77ce4b3210bd82c5" ], "author": { "name": "J. R. Okajima", "email": "hooanon05@yahoo.co.jp", "time": "Tue Mar 31 15:23:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "loop: add ioctl to resize a loop device\n\nAdd the ability to \u0027resize\u0027 the loop device on the fly.\n\nOne practical application is a loop file with XFS filesystem, already\nmounted: You can easily enlarge the file (append some bytes) and then call\nioctl(fd, LOOP_SET_CAPACITY, new); The loop driver will learn about the\nnew size and you can use xfs_growfs later on, which will allow you to use\nfull capacity of the loop file without the need to unmount.\n\nTest app:\n\n#include \u003clinux/fs.h\u003e\n#include \u003clinux/loop.h\u003e\n#include \u003csys/ioctl.h\u003e\n#include \u003csys/stat.h\u003e\n#include \u003csys/types.h\u003e\n#include \u003cassert.h\u003e\n#include \u003cerrno.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cstdlib.h\u003e\n#include \u003cunistd.h\u003e\n\n#define _GNU_SOURCE\n#include \u003cgetopt.h\u003e\n\nchar *me;\n\nvoid usage(FILE *f)\n{\n\tfprintf(f, \"%s [options] loop_dev [backend_file]\\n\"\n\t\t\"-s, --set new_size_in_bytes\\n\"\n\t\t\"\\twhen backend_file is given, \"\n\t\t\"it will be expanded too while keeping the original contents\\n\",\n\t\tme);\n}\n\nstruct option opts[] \u003d {\n\t{\n\t\t.name\t\t\u003d \"set\",\n\t\t.has_arg\t\u003d 1,\n\t\t.flag\t\t\u003d NULL,\n\t\t.val\t\t\u003d \u0027s\u0027\n\t},\n\t{\n\t\t.name\t\t\u003d \"help\",\n\t\t.has_arg\t\u003d 0,\n\t\t.flag\t\t\u003d NULL,\n\t\t.val\t\t\u003d \u0027h\u0027\n\t}\n};\n\nvoid err_size(char *name, __u64 old)\n{\n\tfprintf(stderr, \"size must be larger than current %s (%llu)\\n\",\n\t\tname, old);\n}\n\nint main(int argc, char *argv[])\n{\n\tint fd, err, c, i, bfd;\n\tssize_t ssz;\n\tsize_t sz;\n\t__u64 old, new, append;\n\tchar a[BUFSIZ];\n\tstruct stat st;\n\tFILE *out;\n\tchar *backend, *dev;\n\n\terr \u003d EINVAL;\n\tout \u003d stderr;\n\tme \u003d argv[0];\n\tnew \u003d 0;\n\twhile ((c \u003d getopt_long(argc, argv, \"s:h\", opts, \u0026i)) !\u003d -1) {\n\t\tswitch (c) {\n\t\tcase \u0027s\u0027:\n\t\t\terrno \u003d 0;\n\t\t\tnew \u003d strtoull(optarg, NULL, 0);\n\t\t\tif (errno) {\n\t\t\t\terr \u003d errno;\n\t\t\t\tperror(argv[i]);\n\t\t\t\tgoto out;\n\t\t\t}\n\t\t\tbreak;\n\n\t\tcase \u0027h\u0027:\n\t\t\terr \u003d 0;\n\t\t\tout \u003d stdout;\n\t\t\tgoto err;\n\n\t\tdefault:\n\t\t\tperror(argv[i]);\n\t\t\tgoto err;\n\t\t}\n\t}\n\n\tif (optind \u003c argc)\n\t\tdev \u003d argv[optind++];\n\telse\n\t\tgoto err;\n\n\tfd \u003d open(dev, O_RDONLY);\n\tif (fd \u003c 0) {\n\t\terr \u003d errno;\n\t\tperror(dev);\n\t\tgoto out;\n\t}\n\n\terr \u003d ioctl(fd, BLKGETSIZE64, \u0026old);\n\tif (err) {\n\t\terr \u003d errno;\n\t\tperror(\"ioctl BLKGETSIZE64\");\n\t\tgoto out;\n\t}\n\n\tif (!new) {\n\t\tprintf(\"%llu\\n\", old);\n\t\tgoto out;\n\t}\n\n\tif (new \u003c old) {\n\t\terr \u003d EINVAL;\n\t\terr_size(dev, old);\n\t\tgoto out;\n\t}\n\n\tif (optind \u003c argc) {\n\t\tbackend \u003d argv[optind++];\n\t\tbfd \u003d open(backend, O_WRONLY|O_APPEND);\n\t\tif (bfd \u003c 0) {\n\t\t\terr \u003d errno;\n\t\t\tperror(backend);\n\t\t\tgoto out;\n\t\t}\n\t\terr \u003d fstat(bfd, \u0026st);\n\t\tif (err) {\n\t\t\terr \u003d errno;\n\t\t\tperror(backend);\n\t\t\tgoto out;\n\t\t}\n\t\tif (new \u003c st.st_size) {\n\t\t\terr \u003d EINVAL;\n\t\t\terr_size(backend, st.st_size);\n\t\t\tgoto out;\n\t\t}\n\t\tappend \u003d new - st.st_size;\n\t\tsz \u003d sizeof(a);\n\t\twhile (append \u003e 0) {\n\t\t\tif (append \u003c sz)\n\t\t\t\tsz \u003d append;\n\t\t\tssz \u003d write(bfd, a, sz);\n\t\t\tif (ssz !\u003d sz) {\n\t\t\t\terr \u003d errno;\n\t\t\t\tperror(backend);\n\t\t\t\tgoto out;\n\t\t\t}\n\t\t\tappend -\u003d sz;\n\t\t}\n\t\terr \u003d fsync(bfd);\n\t\tif (err) {\n\t\t\terr \u003d errno;\n\t\t\tperror(backend);\n\t\t\tgoto out;\n\t\t}\n\t}\n\n\terr \u003d ioctl(fd, LOOP_SET_CAPACITY, new);\n\tif (err) {\n\t\terr \u003d errno;\n\t\tperror(\"ioctl LOOP_SET_CAPACITY\");\n\t}\n\tgoto out;\n\n err:\n\tusage(out);\n out:\n\treturn err;\n}\n\nSigned-off-by: J. R. Okajima \u003chooanon05@yahoo.co.jp\u003e\nSigned-off-by: Tomas Matejicek \u003ctomas@slax.org\u003e\nCc: \u003cutil-linux-ng@vger.kernel.org\u003e\nCc: Karel Zak \u003ckzak@redhat.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: \u003clinux-api@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "65bd6a9bc7be3f5841dad12f77ce4b3210bd82c5", "tree": "53b748ed9df7594c48d9987a2363f6bc69ad5f31", "parents": [ "5062910a06ee979002edbf58ab65481c81242df4" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Tue Mar 31 15:23:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:17 2009 -0700" }, "message": "uml: remove useless comments\n\nThese comments are useless now, remove them.\n\nSigned-off-by: WANG Cong \u003cxiyou.wangcong@gmail.com\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": "5062910a06ee979002edbf58ab65481c81242df4", "tree": "b3c961d2fc0058d400cf78617d11714af19d1180", "parents": [ "dc71768742b39bca298e9ca6c91e575cd4b140e6" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Tue Mar 31 15:23:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "uml: improve error messages\n\nThese error messages are from check_sysemu(), not check_ptrace().\n\nSigned-off-by: WANG Cong \u003cxiyou.wangcong@gmail.com\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": "dc71768742b39bca298e9ca6c91e575cd4b140e6", "tree": "366c9c3890d791b45987cbf8279a5bf8323362cd", "parents": [ "792dd4fc317e1f94a6af111a0979c1c0d8c14453" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Tue Mar 31 15:23:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "uml: don\u0027t use a too long string literal\n\numl uses a concatenated string literal to store the contents of .config,\nbut .config file content is varaible, it can be very long.\n\nUse an array of string literals instead.\n\nSigned-off-by: WANG Cong \u003cxiyou.wangcong@gmail.com\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": "792dd4fc317e1f94a6af111a0979c1c0d8c14453", "tree": "c8dd4560554cf3bffd991c24d7f18fc6729ffaa0", "parents": [ "bf9ed57d35d64dac5d5651478b5530a89b20ea1e" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Mar 31 15:23:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "ubd: stop defintining MAJOR_NR\n\nMAJOR_NR isn\u0027t needed anymore since very early 2.5 kernels.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\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": "bf9ed57d35d64dac5d5651478b5530a89b20ea1e", "tree": "5a9a14b7b67fb7eb0b554fd13bbe07022b07f448", "parents": [ "a8af78982ff4c0b3731527b0217d286a343a3089" ], "author": { "name": "Magnus Damm", "email": "damm@igel.co.jp", "time": "Tue Mar 31 15:23:38 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "pm: cleanup includes\n\nRemove unused/duplicate cruft from asm/suspend.h:\n\n - x86_32: remove unused acpi code\n - powerpc: remove duplicate prototypes, see linux/suspend.h\n\nSigned-off-by: Magnus Damm \u003cdamm@igel.co.jp\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: \"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": "a8af78982ff4c0b3731527b0217d286a343a3089", "tree": "10f0ebe13c999dd54efdf79ff606b65e7952b69d", "parents": [ "5f0e3da6e186598bbd2569410ab60fa645ba00c9" ], "author": { "name": "Magnus Damm", "email": "damm@igel.co.jp", "time": "Tue Mar 31 15:23:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "pm: rework includes, remove arch ifdefs\n\nMake the following header file changes:\n\n - remove arch ifdefs and asm/suspend.h from linux/suspend.h\n - add asm/suspend.h to disk.c (for arch_prepare_suspend())\n - add linux/io.h to swsusp.c (for ioremap())\n - x86 32/64 bit compile fixes\n\nSigned-off-by: Magnus Damm \u003cdamm@igel.co.jp\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: \"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": "5f0e3da6e186598bbd2569410ab60fa645ba00c9", "tree": "bccceb64fd0e81080733a1595a66979bcd999e3c", "parents": [ "a6209d6d71f2ab8c63cc1587ef65490d83022baf" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Tue Mar 31 15:23:36 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "alpha: convert u64 to unsigned long long\n\nConvert alpha architecture to use u64 as unsigned long long. This is\nbeing done so that (a) all arches use u64 as unsigned long long and (b)\nprintk of a u64 as %ll[ux] will not generate format warnings by gcc.\n\nThe only gcc cross-compiler that I have is 4.0.2, which generates errors\nabout miscompiling __weak references, so I have commented out that line in\ncompiler-gcc4.h so that most of these compile, but more builds and real\nmachine testing would be Real Good.\n\n[akpm@linux-foundation.org: fix warning]\n[akpm@linux-foundation.org: fix build]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nFrom: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a6209d6d71f2ab8c63cc1587ef65490d83022baf", "tree": "2490d7adf757c9ea00c30fb8f75171d6b8772d3a", "parents": [ "a94066992b3050a7bd9a82bf73bf19f6052d2f82" ], "author": { "name": "Ivan Kokshaysky", "email": "ink@jurassic.park.msu.ru", "time": "Tue Mar 31 15:23:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:16 2009 -0700" }, "message": "alpha: xchg/cmpxchg cleanup and fixes\n\n- \"_local\" versions of xchg/cmpxchg functions duplicate code\n of non-local ones (quite a few pages of assembler), except\n memory barriers. We can generate these two variants from a\n single header file using simple macros;\n\n- convert xchg macro back to inline function using always_inline\n attribute;\n\n- use proper argument types for cmpxchg_u8/u16 functions\n to fix a problem with negative arguments.\n\nSigned-off-by: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a94066992b3050a7bd9a82bf73bf19f6052d2f82", "tree": "fa7c64f727805f4850124d737dec9fd1d3e3a133", "parents": [ "0b42afd0a3051952924ed373dcda61beb23fcb58" ], "author": { "name": "Cheng Renquan", "email": "crquan@gmail.com", "time": "Tue Mar 31 15:23:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "MAINTAINERS: add the missing linux alpha port mailling list\n\nSigned-off-by: Cheng Renquan \u003ccrquan@gmail.com\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b42afd0a3051952924ed373dcda61beb23fcb58", "tree": "e9973473c5ec0455047c91ed7591bf0b91ba862a", "parents": [ "9fab5619bdd7f84cdd22cc760778f759f9819a33" ], "author": { "name": "Roel Kluin", "email": "roel.kluin@gmail.com", "time": "Tue Mar 31 15:23:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "alpha: fix macros\n\nWhen this macros isn\u0027t called with \u0027fixup\u0027, e.g. with foo this will\nincorectly expand to foo-\u003efoo.bits.errreg\n\nSigned-off-by: Roel Kluin \u003croel.kluin@gmail.com\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9fab5619bdd7f84cdd22cc760778f759f9819a33", "tree": "4a7010f3ba43896c266032f8b287d6bd55b72c85", "parents": [ "327c0e968645f2601a43f5ea7c19c7b3a5fa0a34" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Tue Mar 31 15:23:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "shmem: writepage directly to swap\n\nSynopsis: if shmem_writepage calls swap_writepage directly, most shmem\nswap loads benefit, and a catastrophic interaction between SLUB and some\nflash storage is avoided.\n\nshmem_writepage() has always been peculiar in making no attempt to write:\nit has just transferred a shmem page from file cache to swap cache, then\nlet that page make its way around the LRU again before being written and\nfreed.\n\nThe idea was that people use tmpfs because they want those pages to stay\nin RAM; so although we give it an overflow to swap, we should resist\nwriting too soon, giving those pages a second chance before they can be\nreclaimed.\n\nThat was always questionable, and I\u0027ve toyed with this patch for years;\nbut never had a clear justification to depart from the original design.\n\nIt became more questionable in 2.6.28, when the split LRU patches classed\nshmem and tmpfs pages as SwapBacked rather than as file_cache: that in\nitself gives them more resistance to reclaim than normal file pages. I\nprepared this patch for 2.6.29, but the merge window arrived before I\u0027d\ncompleted gathering statistics to justify sending it in.\n\nThen while comparing SLQB against SLUB, running SLUB on a laptop I\u0027d\nhabitually used with SLAB, I found SLUB to run my tmpfs kbuild swapping\ntests five times slower than SLAB or SLQB - other machines slower too, but\nnowhere near so bad. Simpler \"cp -a\" swapping tests showed the same.\n\nslub_max_order\u003d0 brings sanity to all, but heavy swapping is too far from\nnormal to justify such a tuning. The crucial factor on that laptop turns\nout to be that I\u0027m using an SD card for swap. What happens is this:\n\nBy default, SLUB uses order-2 pages for shmem_inode_cache (and many other\nfs inodes), so creating tmpfs files under memory pressure brings lumpy\nreclaim into play. One subpage of the order is chosen from the bottom of\nthe LRU as usual, then the other three picked out from their random\npositions on the LRUs.\n\nIn a tmpfs load, many of these pages will be ones which already passed\nthrough shmem_writepage, so already have swap allocated. And though their\noffsets on swap were probably allocated sequentially, now that the pages\nare picked off at random, their swap offsets are scattered.\n\nBut the flash storage on the SD card is very sensitive to having its\nwrites merged: once swap is written at scattered offsets, performance\nfalls apart. Rotating disk seeks increase too, but less disastrously.\n\nSo: stop giving shmem/tmpfs pages a second pass around the LRU, write them\nout to swap as soon as their swap has been allocated.\n\nIt\u0027s surely possible to devise an artificial load which runs faster the\nold way, one whose sizing is such that the tmpfs pages on their second\npass are the ones that are wanted again, and other pages not.\n\nBut I\u0027ve not yet found such a load: on all machines, under the loads I\u0027ve\ntried, immediate swap_writepage speeds up shmem swapping: especially when\nusing the SLUB allocator (and more effectively than slub_max_order\u003d0), but\nalso with the others; and it also reduces the variance between runs. How\nmuch faster varies widely: a factor of five is rare, 5% is common.\n\nOne load which might have suffered: imagine a swapping shmem load in a\nlimited mem_cgroup on a machine with plenty of memory. Before 2.6.29 the\nswapcache was not charged, and such a load would have run quickest with\nthe shmem swapcache never written to swap. But now swapcache is charged,\nso even this load benefits from shmem_writepage directly to swap.\n\nApologies for the #ifndef CONFIG_SWAP swap_writepage() stub in swap.h:\nit\u0027s silly because that will never get called; but refactoring shmem.c\nsensibly according to CONFIG_SWAP will be a separate task.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nAcked-by: Rik van Riel \u003criel@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": "327c0e968645f2601a43f5ea7c19c7b3a5fa0a34", "tree": "acc6789c120a6d5000ceebf51e690d14c6cfcacb", "parents": [ "2678958e1225f350806d90f211a3b475f64aee80" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Mar 31 15:23:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "vmscan: fix it to take care of nodemask\n\ntry_to_free_pages() is used for the direct reclaim of up to\nSWAP_CLUSTER_MAX pages when watermarks are low. The caller to\nalloc_pages_nodemask() can specify a nodemask of nodes that are allowed to\nbe used but this is not passed to try_to_free_pages(). This can lead to\nunnecessary reclaim of pages that are unusable by the caller and int the\nworst case lead to allocation failure as progress was not been make where\nit is needed.\n\nThis patch passes the nodemask used for alloc_pages_nodemask() to\ntry_to_free_pages().\n\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@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": "2678958e1225f350806d90f211a3b475f64aee80", "tree": "d4aeb116c78f31f96ffb0760e36b95424e7f9494", "parents": [ "88c3bd707c2552bcef93cc3724647903aece159d" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue Mar 31 15:23:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "ramfs-nommu: use generic lru cache\n\nInstead of open-coding the lru-list-add pagevec batching when expanding a\nfile mapping from zero, defer to the appropriate page cache function that\nalso takes care of adding the page to the lru list.\n\nThis is cleaner, saves code and reduces the stack footprint by 16 words\nworth of pagevec.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.com\u003e\nCc: MinChan Kim \u003cminchan.kim@gmail.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88c3bd707c2552bcef93cc3724647903aece159d", "tree": "68c104f559854b1f5fea01ed8568584e535ac597", "parents": [ "71aa653c6bfa6743d838342105ebc067145394e4" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Tue Mar 31 15:23:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "vmscan: print shrink_slab symbol name on negative shrinker objects\n\nWhen a shrinker has a negative number of objects to delete, the symbol\nname of the shrinker should be printed, not shrink_slab. This also makes\nthe error message slightly more informative.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "71aa653c6bfa6743d838342105ebc067145394e4", "tree": "9e5cadbcc897301cf3af2ebe45d44d574274a054", "parents": [ "33925b25d2c00a29664f1994ab350a9bff70f7a2" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue Mar 31 15:23:28 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:15 2009 -0700" }, "message": "nommu: make CONFIG_UNEVICTABLE_LRU available when CONFIG_MMU\u003dn\n\nMake CONFIG_UNEVICTABLE_LRU available when CONFIG_MMU\u003dn. There\u0027s no logical\nreason it shouldn\u0027t be available, and it can be used for ramfs.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Enrik Berkhan \u003cEnrik.Berkhan@ge.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "33925b25d2c00a29664f1994ab350a9bff70f7a2", "tree": "fe1a0ef5cceba27664eae8f38f9e4e2a27bf1b36", "parents": [ "7ca43e7564679604d86e9ed834e7bbcffd8a4a3f" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue Mar 31 15:23:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "nommu: there is no mlock() for NOMMU, so don\u0027t provide the bits\n\nThe mlock() facility does not exist for NOMMU since all mappings are\neffectively locked anyway, so we don\u0027t make the bits available when\nthey\u0027re not useful.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Enrik Berkhan \u003cEnrik.Berkhan@ge.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7ca43e7564679604d86e9ed834e7bbcffd8a4a3f", "tree": "575e21270d7c8284f54b1e91eb5dd128ae03d713", "parents": [ "f4112de6b679d84bd9b9681c7504be7bdfb7c7d5" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Tue Mar 31 15:23:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "mm: use debug_kmap_atomic\n\nUse debug_kmap_atomic in kmap_atomic, kmap_atomic_pfn, and\niomap_atomic_prot_pfn.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f4112de6b679d84bd9b9681c7504be7bdfb7c7d5", "tree": "c9a5665b31e751e1d4255b8c35a6245d5abfa3eb", "parents": [ "851a039cc547b33b8139fe6d7c2bbfb158e2724e" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Tue Mar 31 15:23:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "mm: introduce debug_kmap_atomic\n\nx86 has debug_kmap_atomic_prot() which is error checking function for\nkmap_atomic. It is usefull for the other architectures, although it needs\nCONFIG_TRACE_IRQFLAGS_SUPPORT.\n\nThis patch exposes it to the other architectures.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "851a039cc547b33b8139fe6d7c2bbfb158e2724e", "tree": "0deabfe04b648d7542de8dd36dcd384d03fe09f6", "parents": [ "56a76f8275c379ed73c8a43cfa1dfa2f5e9cfa19" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Tue Mar 31 15:23:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "mm: page_mkwrite change prototype to match fault: fix sysfs\n\nFix warnings and return values in sysfs bin_page_mkwrite(), fixing\nfs/sysfs/bin.c: In function `bin_page_mkwrite\u0027:\nfs/sysfs/bin.c:250: warning: passing argument 2 of `bb-\u003evm_ops-\u003epage_mkwrite\u0027 from incompatible pointer type\nfs/sysfs/bin.c: At top level:\nfs/sysfs/bin.c:280: warning: initialization from incompatible pointer type\n\nExpects to have my [PATCH next] sysfs: fix some bin_vm_ops errors\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@aristanetworks.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "56a76f8275c379ed73c8a43cfa1dfa2f5e9cfa19", "tree": "cbeaa82516c4818f72535b6ebe48a607cef88af4", "parents": [ "c2ec175c39f62949438354f603f4aa170846aabb" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Tue Mar 31 15:23:23 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "fs: fix page_mkwrite error cases in core code and btrfs\n\npage_mkwrite is called with neither the page lock nor the ptl held. This\nmeans a page can be concurrently truncated or invalidated out from\nunderneath it. Callers are supposed to prevent truncate races themselves,\nhowever previously the only thing they can do in case they hit one is to\nraise a SIGBUS. A sigbus is wrong for the case that the page has been\ninvalidated or truncated within i_size (eg. hole punched). Callers may\nalso have to perform memory allocations in this path, where again, SIGBUS\nwould be wrong.\n\nThe previous patch (\"mm: page_mkwrite change prototype to match fault\")\nmade it possible to properly specify errors. Convert the generic buffer.c\ncode and btrfs to return sane error values (in the case of page removed\nfrom pagecache, VM_FAULT_NOPAGE will cause the fault handler to exit\nwithout doing anything, and the fault will be retried properly).\n\nThis fixes core code, and converts btrfs as a template/example. All other\nfilesystems defining their own page_mkwrite should be fixed in a similar\nmanner.\n\nAcked-by: Chris Mason \u003cchris.mason@oracle.com\u003e\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c2ec175c39f62949438354f603f4aa170846aabb", "tree": "f2c9bf1bec2deabe2d3a5092405b027637b6ead3", "parents": [ "c2fdf3a9b2d52842808a8e551b53b55dd9b45030" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Tue Mar 31 15:23:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "mm: page_mkwrite change prototype to match fault\n\nChange the page_mkwrite prototype to take a struct vm_fault, and return\nVM_FAULT_xxx flags. There should be no functional change.\n\nThis makes it possible to return much more detailed error information to\nthe VM (and also can provide more information eg. virtual_address to the\ndriver, which might be important in some special cases).\n\nThis is required for a subsequent fix. And will also make it easier to\nmerge page_mkwrite() with fault() in future.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nCc: Miklos Szeredi \u003cmiklos@szeredi.hu\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Mark Fasheh \u003cmfasheh@suse.com\u003e\nCc: Joel Becker \u003cjoel.becker@oracle.com\u003e\nCc: Artem Bityutskiy \u003cdedekind@infradead.org\u003e\nCc: Felix Blyakher \u003cfelixb@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": "c2fdf3a9b2d52842808a8e551b53b55dd9b45030", "tree": "71affdf51cbf97147ebf3bf41814027c7b63b72a", "parents": [ "704503d836042d4a4c7685b7036e7de0418fbc0f" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Tue Mar 31 15:23:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:14 2009 -0700" }, "message": "mm: enable hashdist by default on 64bit NUMA\n\nOn PowerPC we allocate large boot time hashes on node 0. This leads to an\nimbalance in the free memory, for example on a 64GB box (4 x 16GB nodes):\n\nFree memory:\nNode 0: 97.03%\nNode 1: 98.54%\nNode 2: 98.42%\nNode 3: 98.53%\n\nIf we switch to using vmalloc (like ia64 and x86-64) things are more\nbalanced:\n\nFree memory:\nNode 0: 97.53%\nNode 1: 98.35%\nNode 2: 98.33%\nNode 3: 98.33%\n\nFor many HPC applications we are limited by the free available memory on\nthe smallest node, so even though the same amount of memory is used the\nbetter balancing helps.\n\nSince all 64bit NUMA capable architectures should have sufficient vmalloc\nspace, it makes sense to enable it via CONFIG_64BIT.\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "704503d836042d4a4c7685b7036e7de0418fbc0f", "tree": "218bea088f0b286981221e44d5247dab98020d30", "parents": [ "6a11f75b6a17b5d9ac5025f8d048382fd1f47377" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:23:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "mm: fix proc_dointvec_userhz_jiffies \"breakage\"\n\nAddresses http://bugzilla.kernel.org/show_bug.cgi?id\u003d9838\n\nOn i386, HZ\u003d1000, jiffies_to_clock_t() converts time in a somewhat strange\nway from the user\u0027s point of view:\n\n\t# echo 500 \u003e/proc/sys/vm/dirty_writeback_centisecs\n\t# cat /proc/sys/vm/dirty_writeback_centisecs\n\t499\n\nSo, we have 5000 jiffies converted to only 499 clock ticks and reported\nback.\n\nTICK_NSEC \u003d 999848\nACTHZ \u003d 256039\n\nKeeping in-kernel variable in units passed from userspace will fix issue\nof course, but this probably won\u0027t be right for every sysctl.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6a11f75b6a17b5d9ac5025f8d048382fd1f47377", "tree": "a3415cd897823975b927f89a233d2703bf97ba2b", "parents": [ "610a77e04a8d9fe8764dc484e2182fa251ce1cc2" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Tue Mar 31 15:23:17 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "generic debug pagealloc\n\nCONFIG_DEBUG_PAGEALLOC is now supported by x86, powerpc, sparc64, and\ns390. This patch implements it for the rest of the architectures by\nfilling the pages with poison byte patterns after free_pages() and\nverifying the poison patterns before alloc_pages().\n\nThis generic one cannot detect invalid page accesses immediately but\ninvalid read access may cause invalid dereference by poisoned memory and\ninvalid write access can be detected after a long delay.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "610a77e04a8d9fe8764dc484e2182fa251ce1cc2", "tree": "ec55b9b3698321c3e85cd649fa927554027c75d0", "parents": [ "e2f17d9459aeccf4e013e31cbd741d6b1858eec4" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Mar 31 15:23:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "memdup_user(): introduce\n\nI notice there are many places doing copy_from_user() which follows\nkmalloc():\n\n dst \u003d kmalloc(len, GFP_KERNEL);\n if (!dst)\n return -ENOMEM;\n if (copy_from_user(dst, src, len)) {\n\t\tkfree(dst);\n\t\treturn -EFAULT\n\t}\n\nmemdup_user() is a wrapper of the above code. With this new function, we\ndon\u0027t have to write \u0027len\u0027 twice, which can lead to typos/mistakes. It\nalso produces smaller code and kernel text.\n\nA quick grep shows 250+ places where memdup_user() *may* be used. I\u0027ll\nprepare a patchset to do this conversion.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e2f17d9459aeccf4e013e31cbd741d6b1858eec4", "tree": "919fb245d700a04d253247e19db0b084454b20cc", "parents": [ "d1d7487173eab8352125cf6cc271940f24254bd4" ], "author": { "name": "Roel Kluin", "email": "roel.kluin@gmail.com", "time": "Tue Mar 31 15:23:15 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "hugetlb: chg cannot become less than 0\n\nchg is unsigned, so it cannot be less than 0.\n\nAlso, since region_chg returns long, let vma_needs_reservation() forward\nthis to alloc_huge_page(). Store it as long as well. all callers cast it\nto long anyway.\n\nSigned-off-by: Roel Kluin \u003croel.kluin@gmail.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Johannes Weiner \u003channes@saeurebad.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d1d7487173eab8352125cf6cc271940f24254bd4", "tree": "07de142c03385f05beac342ee1c4b93b236445c5", "parents": [ "ad1c3544d0a85da7738ce8cff6f8a148da57935c" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Tue Mar 31 15:23:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "mm: remove pagevec_swap_free()\n\npagevec_swap_free() is now unused.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ad1c3544d0a85da7738ce8cff6f8a148da57935c", "tree": "f1ac66e22e172945f200f1b2fd9a2ece23a0880b", "parents": [ "2443462b0a04ef0f82ad48f4fd0ef4ac5b24c4b7" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue Mar 31 15:23:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "mm: don\u0027t free swap slots on page deactivation\n\nThe pagevec_swap_free() at the end of shrink_active_list() was introduced\nin 68a22394 \"vmscan: free swap space on swap-in/activation\" when\nshrink_active_list() was still rotating referenced active pages.\n\nIn 7e9cd48 \"vmscan: fix pagecache reclaim referenced bit check\" this was\nchanged, the rotating removed but the pagevec_swap_free() after the\nrotation loop was forgotten, applying now to the pagevec of the\ndeactivation loop instead.\n\nNow swap space is freed for deactivated pages. And only for those that\nhappen to be on the pagevec after the deactivation loop.\n\nComplete 7e9cd48 and remove the rest of the swap freeing.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2443462b0a04ef0f82ad48f4fd0ef4ac5b24c4b7", "tree": "3be4cdc338bf004f7b8c6c70baf7fb78ad252844", "parents": [ "2584e517320bd48dc8d20e38a2621a2dbe58fade" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue Mar 31 15:23:12 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:13 2009 -0700" }, "message": "mm: move pagevec stripping to save unlock-relock\n\nIn shrink_active_list() after the deactivation loop, we strip buffer heads\nfrom the potentially remaining pages in the pagevec.\n\nCurrently, this drops the zone\u0027s lru lock for stripping, only to reacquire\nit again afterwards to update statistics.\n\nIt is not necessary to strip the pages before updating the stats, so move\nthe whole thing out of the protected region and save the extra locking.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: MinChan Kim \u003cminchan.kim@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": "2584e517320bd48dc8d20e38a2621a2dbe58fade", "tree": "3b94b6c4cc10ab16ab106464e8d32e2e77ad8634", "parents": [ "8a0bdec194c21c8fdef840989d0d7b742bb5d4bc" ], "author": { "name": "Ravikiran G Thirumalai", "email": "kiran@scalex86.org", "time": "Tue Mar 31 15:21:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "mm: reintroduce and deprecate rlimit based access for SHM_HUGETLB\n\nAllow non root users with sufficient mlock rlimits to be able to allocate\nhugetlb backed shm for now. Deprecate this though. This is being\ndeprecated because the mlock based rlimit checks for SHM_HUGETLB is not\nconsistent with mmap based huge page allocations.\n\nSigned-off-by: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nReviewed-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Adam Litke \u003cagl@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": "8a0bdec194c21c8fdef840989d0d7b742bb5d4bc", "tree": "0185e4cfa29f18a2f7b9d297e049a1de5314d0ec", "parents": [ "e3a7cca1ef4c1af9b0acef9bd66eff6582a737b5" ], "author": { "name": "Ravikiran G Thirumalai", "email": "kiran@scalex86.org", "time": "Tue Mar 31 15:19:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "mm: fix SHM_HUGETLB to work with users in hugetlb_shm_group\n\nFix hugetlb subsystem so that non root users belonging to\nhugetlb_shm_group can actually allocate hugetlb backed shm.\n\nCurrently non root users cannot even map one large page using SHM_HUGETLB\nwhen they belong to the gid in /proc/sys/vm/hugetlb_shm_group. This is\nbecause allocation size is verified against RLIMIT_MEMLOCK resource limit\neven if the user belongs to hugetlb_shm_group.\n\nThis patch\n1. Fixes hugetlb subsystem so that users with CAP_IPC_LOCK and users\n belonging to hugetlb_shm_group don\u0027t need to be restricted with\n RLIMIT_MEMLOCK resource limits\n2. This patch also disables mlock based rlimit checking (which will\n be reinstated and marked deprecated in a subsequent patch).\n\nSigned-off-by: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nReviewed-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Adam Litke \u003cagl@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": "e3a7cca1ef4c1af9b0acef9bd66eff6582a737b5", "tree": "717097ec82ce0de55e44b2fe3e35fa041e5169b2", "parents": [ "bd2f6199cf9af472aeefa1b642c9f504f19e6008" ], "author": { "name": "Edward Shishkin", "email": "edward.shishkin@gmail.com", "time": "Tue Mar 31 15:19:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "vfs: add/use account_page_dirtied()\n\nAdd a helper function account_page_dirtied(). Use that from two\ncallsites. reiser4 adds a function which adds a third callsite.\n\nSigned-off-by: Edward Shishkin\u003cedward.shishkin@gmail.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bd2f6199cf9af472aeefa1b642c9f504f19e6008", "tree": "ba8cd5e7d940bcac161e28872998f86a2910362b", "parents": [ "bd775c42ea5f7c766d03a287083837cf05e7e738" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue Mar 31 15:19:38 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "vmscan: respect higher order in zone_reclaim()\n\nDuring page allocation, there are two stages of direct reclaim that are\napplied to each zone in the preferred list. The first stage using\nzone_reclaim() reclaims unmapped file backed pages and slab pages if over\ndefined limits as these are cheaper to reclaim. The caller specifies the\norder of the target allocation but the scan control is not being correctly\ninitialised.\n\nThe impact is that the correct number of pages are being reclaimed but\nthat lumpy reclaim is not being applied. This increases the chances of a\nfull direct reclaim via try_to_free_pages() is required.\n\nThis patch initialises the order field of the scan control as requested by\nthe caller.\n\n[mel@csn.ul.ie: rewrote changelog]\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bd775c42ea5f7c766d03a287083837cf05e7e738", "tree": "40084f399068bed56c3061afd5e1175c679160df", "parents": [ "9786bf841da57fac3457a1dac41acb4c1f2eced6" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Tue Mar 31 15:19:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "mm: add comment why mark_page_accessed() would be better than pte_mkyoung() in follow_page()\n\nAt first look, mark_page_accessed() in follow_page() seems a bit strange.\nIt seems pte_mkyoung() would be better consistent with other kernel code.\n\nHowever, it is intentional. The commit log said:\n\n ------------------------------------------------\n commit 9e45f61d69be9024a2e6bef3831fb04d90fac7a8\n Author: akpm \u003cakpm\u003e\n Date: Fri Aug 15 07:24:59 2003 +0000\n\n [PATCH] Use mark_page_accessed() in follow_page()\n\n Touching a page via follow_page() counts as a reference so we should be\n either setting the referenced bit in the pte or running mark_page_accessed().\n\n Altering the pte is tricky because we haven\u0027t implemented an atomic\n pte_mkyoung(). And mark_page_accessed() is better anyway because it has more\n aging state: it can move the page onto the active list.\n\n BKrev: 3f3c8acbplT8FbwBVGtth7QmnqWkIw\n ------------------------------------------------\n\nThe atomic issue is still true nowadays. adding comment help to understand\ncode intention and it would be better.\n\n[akpm@linux-foundation.org: clarify text]\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9786bf841da57fac3457a1dac41acb4c1f2eced6", "tree": "763cb1dd3f6a3c4faf1c31b44ad2e7bef0d206d2", "parents": [ "d979677c4c02f0a72db5a03ecd8184bd9d6695c8" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue Mar 31 15:19:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "vmscan: clip swap_cluster_max in shrink_all_memory()\n\nshrink_inactive_list() scans in sc-\u003eswap_cluster_max chunks until it hits\nthe scan limit it was passed.\n\nshrink_inactive_list()\n{\n\tdo {\n\t\tisolate_pages(swap_cluster_max)\n\t\tshrink_page_list()\n\t} while (nr_scanned \u003c max_scan);\n}\n\nThis assumes that swap_cluster_max is not bigger than the scan limit\nbecause the latter is checked only after at least one iteration.\n\nIn shrink_all_memory() sc-\u003eswap_cluster_max is initialized to the overall\nreclaim goal in the beginning but not decreased while reclaim is making\nprogress which leads to subsequent calls to shrink_inactive_list()\nreclaiming way too much in the one iteration that is done unconditionally.\n\nSet sc-\u003eswap_cluster_max always to the proper goal before doing\n shrink_all_zones()\n shrink_list()\n shrink_inactive_list().\n\nWhile the current shrink_all_memory() happily reclaims more than actually\nrequested, this patch fixes it to never exceed the goal:\n\nunpatched\n wanted\u003d10000 reclaimed\u003d13356\n wanted\u003d10000 reclaimed\u003d19711\n wanted\u003d10000 reclaimed\u003d10289\n wanted\u003d10000 reclaimed\u003d17306\n wanted\u003d10000 reclaimed\u003d10700\n wanted\u003d10000 reclaimed\u003d10004\n wanted\u003d10000 reclaimed\u003d13301\n wanted\u003d10000 reclaimed\u003d10976\n wanted\u003d10000 reclaimed\u003d10605\n wanted\u003d10000 reclaimed\u003d10088\n wanted\u003d10000 reclaimed\u003d15000\n\npatched\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d9599\n wanted\u003d10000 reclaimed\u003d8476\n wanted\u003d10000 reclaimed\u003d8326\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d9919\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d9624\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d10000 reclaimed\u003d10000\n wanted\u003d8500 reclaimed\u003d8092\n wanted\u003d316 reclaimed\u003d316\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: MinChan Kim \u003cminchan.kim@gmail.com\u003e\nAcked-by: Nigel Cunningham \u003cncunningham@crca.org.au\u003e\nAcked-by: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@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": "d979677c4c02f0a72db5a03ecd8184bd9d6695c8", "tree": "370c936bb17210db0db80df0e9b488c6ee5c11a1", "parents": [ "0a0dd05dd7e1a800241888cbf515bf8d3dc2e59c" ], "author": { "name": "MinChan Kim", "email": "minchan.kim@gmail.com", "time": "Tue Mar 31 15:19:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:12 2009 -0700" }, "message": "mm: shrink_all_memory(): use sc.nr_reclaimed\n\nCommit a79311c14eae4bb946a97af25f3e1b17d625985d \"vmscan: bail out of\ndirect reclaim after swap_cluster_max pages\" moved the nr_reclaimed\ncounter into the scan control to accumulate the number of all reclaimed\npages in a reclaim invocation.\n\nshrink_all_memory() can use the same mechanism. it increase code\nconsistency and redability.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: MinChan Kim \u003cminchan.kim@gmail.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Rik van Riel \u003criel@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": "0a0dd05dd7e1a800241888cbf515bf8d3dc2e59c", "tree": "1b6a4bb52465330fd106eb810f25bb631deed6c6", "parents": [ "ee99c71c59f897436ec65debb99372b3146f9985" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Tue Mar 31 15:19:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "mm: don\u0027t call mark_page_accessed() in do_swap_page()\n\ncommit bf3f3bc5e734706730c12a323f9b2068052aa1f0 (mm: don\u0027t\nmark_page_accessed in fault path) only remove the mark_page_accessed() in\nfilemap_fault().\n\nTherefore, swap-backed pages and file-backed pages have inconsistent\nbehavior. mark_page_accessed() should be removed from do_swap_page().\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Rik van Riel \u003criel@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": "ee99c71c59f897436ec65debb99372b3146f9985", "tree": "051f1c43b7c7658689d4b2c23b3d8585d6464a89", "parents": [ "a6dc60f8975ad96d162915e07703a4439c80dcf0" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Tue Mar 31 15:19:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "mm: introduce for_each_populated_zone() macro\n\nImpact: cleanup\n\nIn almost cases, for_each_zone() is used with populated_zone(). It\u0027s\nbecause almost function doesn\u0027t need memoryless node information.\nTherefore, for_each_populated_zone() can help to make code simplify.\n\nThis patch has no functional change.\n\n[akpm@linux-foundation.org: small cleanup]\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nReviewed-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a6dc60f8975ad96d162915e07703a4439c80dcf0", "tree": "b28cae1e69e85e87d6991dbbb199bfe73fb433af", "parents": [ "9de1581e75ba9d7979766d4ab6d56f0f2d87f7c6" ], "author": { "name": "Johannes Weiner", "email": "hannes@cmpxchg.org", "time": "Tue Mar 31 15:19:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "vmscan: rename sc.may_swap to may_unmap\n\nsc.may_swap does not only influence reclaiming of anon pages but pages\nmapped into pagetables in general, which also includes mapped file pages.\n\nIn shrink_page_list():\n\n\t\tif (!sc-\u003emay_swap \u0026\u0026 page_mapped(page))\n\t\t\tgoto keep_locked;\n\nFor anon pages, this makes sense as they are always mapped and reclaiming\nthem always requires swapping.\n\nBut mapped file pages are skipped here as well and it has nothing to do\nwith swapping.\n\nThe real effect of the knob is whether mapped pages are unmapped and\nreclaimed or not. Rename it to `may_unmap\u0027 to have its name match its\nactual meaning more precisely.\n\nSigned-off-by: Johannes Weiner \u003channes@cmpxchg.org\u003e\nReviewed-by: MinChan Kim \u003cminchan.kim@gmail.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Rik van Riel \u003criel@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": "9de1581e75ba9d7979766d4ab6d56f0f2d87f7c6", "tree": "da6854544454f7f6184e6cd54c8b4e88bfc3543a", "parents": [ "a12888f772dab4bf5e6f73668dc4f5f6026a7014" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Mar 31 15:19:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "get_mm_hiwater_xxx: trivial, s/define/inline/\n\nAndrew pointed out get_mm_hiwater_xxx() evaluate \"mm\" argument thrice/twice,\nmake them inline.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a12888f772dab4bf5e6f73668dc4f5f6026a7014", "tree": "6a6113899ff39e58993280bb831a813a43a8e1e1", "parents": [ "d086817dc0d42f1be8db4138233d33e1dd16a956" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Tue Mar 31 15:19:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "oom_kill: don\u0027t call for int_sqrt(0)\n\nThere is no need to call for int_sqrt if argument is 0.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d086817dc0d42f1be8db4138233d33e1dd16a956", "tree": "de5dfc0e262b78e625d88309b0ab5c8f94ed8320", "parents": [ "ef161a9863b045909142daea9490b067997f3dc5" ], "author": { "name": "MinChan Kim", "email": "minchan.kim@gmail.com", "time": "Tue Mar 31 15:19:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "vmap: remove needless lock and list in vmap\n\nvmap\u0027s dirty_list is unused. It\u0027s for optimizing flushing. but Nick\ndidn\u0027t write the code yet. so, we don\u0027t need it until time as it is\nneeded.\n\nThis patch removes vmap_block\u0027s dirty_list and codes related to it.\n\nSigned-off-by: MinChan Kim \u003cminchan.kim@gmail.com\u003e\nAcked-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef161a9863b045909142daea9490b067997f3dc5", "tree": "2cf6aa8a617110c7680978b8aaceea87ec6d2a3d", "parents": [ "0f043a81ebe84be3576667f04fdda481609e3816" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@gmail.com", "time": "Tue Mar 31 15:19:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:11 2009 -0700" }, "message": "mm: mminit_validate_memmodel_limits(): remove redundant test\n\nIn case if start_pfn overlap the upper bound no need to test end_pfn again\nsince we have it already trimmed.\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0f043a81ebe84be3576667f04fdda481609e3816", "tree": "c54a9ac4a1dc79bd5f2f7ec3ead5aa48802ff7a3", "parents": [ "140716934f67a9b28c3f7032c07c20c746d97a31" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: remove struct tty_operations::read_proc\n\nstruct tty_operations::proc_fops took it\u0027s place and there is one less\ncreate_proc_read_entry() user now!\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "140716934f67a9b28c3f7032c07c20c746d97a31", "tree": "5086f27e2510ee6151d188c6898fb451b164b246", "parents": [ "bf54215ef86a1bd83affd8ecdf833c053aefb49d" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: switch xtensa iss console to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bf54215ef86a1bd83affd8ecdf833c053aefb49d", "tree": "c0e69715b1c439d0f54f06daedfe455386b01b2b", "parents": [ "d594027d62808f6649b273544ab8c19ed5b98fd1" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:23 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: switch ia64 simserial to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d594027d62808f6649b273544ab8c19ed5b98fd1", "tree": "a5e58881b75abcd29a93b2b10299e9937a1833e7", "parents": [ "3d3041768296c4993c0aba686bf0775faab5236a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:23 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: switch amiserial to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3d3041768296c4993c0aba686bf0775faab5236a", "tree": "28fa4b71ccbe43ef8bcb09453fe276791c8fbb14", "parents": [ "6fd69d3cf1496c8e6751ecb3eae254e1a839bd5d" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: switch ircomm to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6fd69d3cf1496c8e6751ecb3eae254e1a839bd5d", "tree": "5fb9961432592f5385eb3ff7571424e07746ea1b", "parents": [ "d196a949ba0fb85121c0dc0720b13380d802dbd6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: switch usb-serial to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d196a949ba0fb85121c0dc0720b13380d802dbd6", "tree": "38c6d78b1cd684ebb7a9d8844d3a5fa2c9a3fbb0", "parents": [ "201a50ba6627dd00aa7b7673a5c454ca387095fb" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:10 2009 -0700" }, "message": "proc tty: switch serial_core to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "201a50ba6627dd00aa7b7673a5c454ca387095fb", "tree": "c053687969b09ffe21fae0d00615be00ea3700ef", "parents": [ "e6c8dd8a5c887caaf6ee29f04c7260617cb28295" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:09 2009 -0700" }, "message": "proc tty: switch sdio_uart to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e6c8dd8a5c887caaf6ee29f04c7260617cb28295", "tree": "2bbf4b2d03e9d2ea0bfd50b8862807c1fe63c3e9", "parents": [ "a18c56e5af41a6391a6bee2c26e806e7997f6698" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:09 2009 -0700" }, "message": "proc tty: switch synclinkmp to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a18c56e5af41a6391a6bee2c26e806e7997f6698", "tree": "4bf7eda484355c99b9d9486506e2d1e7ab4cfb64", "parents": [ "d337829bd841974045846ec8b428f4199453159e" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:09 2009 -0700" }, "message": "proc tty: switch synclink_gt to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d337829bd841974045846ec8b428f4199453159e", "tree": "b8b216101527d65d34012e365c920b0e01dcbce9", "parents": [ "8561c44c9e8baf02a9e3018f76c53aa99038a499" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:09 2009 -0700" }, "message": "proc tty: switch synclink to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8561c44c9e8baf02a9e3018f76c53aa99038a499", "tree": "0c3e2104d1ebbfca4a527a7febc2907c29e67016", "parents": [ "87687144b4fce2ad083e689eec8b219054c292ae" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:09 2009 -0700" }, "message": "proc tty: switch stallion to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "87687144b4fce2ad083e689eec8b219054c292ae", "tree": "202b12dd95cab3852d0e3c9ba55b520a660c8138", "parents": [ "5bd6de7dadb8054a558ae4ac29121d8e93493065" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:17 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:08 2009 -0700" }, "message": "proc tty: switch synclink_cs to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5bd6de7dadb8054a558ae4ac29121d8e93493065", "tree": "55a900eb507807fa85de4292d2628cdae8bd94f7", "parents": [ "cdda7cd92b9c0b8b25c906a1f39c61954432357a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:08 2009 -0700" }, "message": "proc tty: switch istallion to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cdda7cd92b9c0b8b25c906a1f39c61954432357a", "tree": "65e871d4c80b31112df9d2a46a87e107711def95", "parents": [ "444697d61b6d5ae43b317d259db7c362c9d3756a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:08 2009 -0700" }, "message": "proc tty: switch ip2 to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "444697d61b6d5ae43b317d259db7c362c9d3756a", "tree": "50639bb00c92ff1eba0e33d076a836ad77456ae5", "parents": [ "ae149b6bec64a09373ba20fce75f8aa6b14b78fd" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:15 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:08 2009 -0700" }, "message": "proc tty: switch cyclades to -\u003eproc_fops\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ae149b6bec64a09373ba20fce75f8aa6b14b78fd", "tree": "5e2f1fdfc223b76ab798c87fd25bcff8d5f92eeb", "parents": [ "15f7176eb1cccec0a332541285ee752b935c1c85" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 15:19:15 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 01 08:59:08 2009 -0700" }, "message": "proc tty: add struct tty_operations::proc_fops\n\nUsed for gradual switch of TTY drivers from using -\u003eread_proc which helps\nwith gradual switch from -\u003eread_proc for the whole tree.\n\nAs side effect, fix possible race condition when -\u003edata initialized after\nPDE is hooked into proc tree.\n\n-\u003eproc_fops takes precedence over -\u003eread_proc.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "15f7176eb1cccec0a332541285ee752b935c1c85", "tree": "9d33689be7415388ed57f437faaae883a4978a85", "parents": [ "d3d52d687a770973b459d8a92ec1adbba3f60c4b", "321dee6e8b235c496f0a068a72d8df9a4e13ceb9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 18:46:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 18:46:43 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:\n wireless: remove duplicated .ndo_set_mac_address\n netfilter: xtables: fix IPv6 dependency in the cluster match\n tg3: Add GRO support.\n niu: Add GRO support.\n ucc_geth: Fix use-after-of_node_put() in ucc_geth_probe().\n gianfar: Fix use-after-of_node_put() in gfar_of_init().\n kernel: remove HIPQUAD()\n netpoll: store local and remote ip in net-endian\n netfilter: fix endian bug in conntrack printks\n dmascc: fix incomplete conversion to network_device_ops\n gso: Fix support for linear packets\n skbuff.h: fix missing kernel-doc\n ni5010: convert to net_device_ops\n" }, { "commit": "d3d52d687a770973b459d8a92ec1adbba3f60c4b", "tree": "94318a62f25b970d604e29a9b8554afe82932d16", "parents": [ "d17abcd5417d84cfa8a225160481203a37dc81d4", "ed223129a30de7d244ca9b59819f5532c9caf039" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 18:46:12 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 18:46:12 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:\n sparc64: Fix reset hangs on Niagara systems.\n cpumask: use mm_cpumask() wrapper: sparc\n cpumask: remove dangerous CPU_MASK_ALL_PTR, \u0026CPU_MASK_ALL.: sparc\n cpumask: remove the now-obsoleted pcibus_to_cpumask(): sparc\n cpumask: remove cpu_coregroup_map: sparc\n cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: sparc\n cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: sparc64\n cpumask: Use accessors code.: sparc64\n cpumask: Use accessors code: sparc\n cpumask: arch_send_call_function_ipi_mask: sparc\n cpumask: Use smp_call_function_many(): sparc64\n" }, { "commit": "d17abcd5417d84cfa8a225160481203a37dc81d4", "tree": "74ce2c425c5c6550acec90bc92c8a3f735f0d257", "parents": [ "db6f204019380c788f1de06ee937bdbccd60e5c0", "bb75efddeaca89f8a67fd82cdcbaaf436cf17ca9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 18:00:26 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 18:00:26 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask:\n oprofile: Thou shalt not call __exit functions from __init functions\n cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic\n cpumask: remove cpumask_t from core\n cpumask: convert rcutorture.c\n cpumask: use new cpumask_ functions in core code.\n cpumask: remove references to struct irqaction\u0027s mask field.\n cpumask: use mm_cpumask() wrapper: kernel/fork.c\n cpumask: use set_cpu_active in init/main.c\n cpumask: remove node_to_first_cpu\n cpumask: fix seq_bitmap_*() functions.\n cpumask: remove dangerous CPU_MASK_ALL_PTR, \u0026CPU_MASK_ALL\n" }, { "commit": "db6f204019380c788f1de06ee937bdbccd60e5c0", "tree": "f8ca32ab6932a21797dbc5aa77688ea017959da0", "parents": [ "3c6fae67d026d57f64eb3da9c0d0e76983e39ae3", "d1881d3192a3d3e8dc4f255b03187f4c36cb0617" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 17:57:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 17:57:39 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest-and-virtio\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest-and-virtio:\n lguest: barrier me harder\n lguest: use bool instead of int\n lguest: use KVM hypercalls\n lguest: wire up pte_update/pte_update_defer\n lguest: fix spurious BUG_ON() on invalid guest stack.\n virtio: more neatening of virtio_ring macros.\n virtio: fix BAD_RING, START_US and END_USE macros\n" }, { "commit": "3c6fae67d026d57f64eb3da9c0d0e76983e39ae3", "tree": "a11f2ff6d99b382fff02a643f6b6b204efb9c40e", "parents": [ "c4e1aa67ed9e4e542a064bc271ddbf152b677e91", "de15f093e666ccd542f6f7a0e3e917166a07ab44" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 17:54:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 17:54:32 2009 -0700" }, "message": "Merge branch \u0027hwmon-for-linus\u0027 of git://jdelvare.pck.nerim.net/jdelvare-2.6\n\n* \u0027hwmon-for-linus\u0027 of git://jdelvare.pck.nerim.net/jdelvare-2.6:\n hwmon: (fschmd) Add support for the FSC Hades IC\n hwmon: (fschmd) Add support for the FSC Syleus IC\n i2c-i801: Instantiate FSC hardware montioring chips\n dmi: Let dmi_walk() users pass private data\n hwmon: Define a standard interface for chassis intrusion detection\n Move the pcf8591 driver to hwmon\n hwmon: (w83627ehf) Only expose in6 or temp3 on the W83667HG\n hwmon: (w83627ehf) Add support for W83667HG\n hwmon: (w83627ehf) Invert fan pin variables logic\n hwmon: (hdaps) Fix Thinkpad X41 axis inversion\n hwmon: (hdaps) Allow inversion of separate axis\n hwmon: (ds1621) Clean up documentation\n hwmon: (ds1621) Avoid unneeded register access\n hwmon: (ds1621) Clean up register access\n hwmon: (ds1621) Reorder code statements\n" }, { "commit": "c4e1aa67ed9e4e542a064bc271ddbf152b677e91", "tree": "2a2ca00bed0fc22b4eb83db092c9178868d8f76b", "parents": [ "cf2f7d7c90279cdbc12429de278f3d27ac2050ae", "2f8501815256af8498904e68bd0984b1afffd6f8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 17:17:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 17:17:35 2009 -0700" }, "message": "Merge branch \u0027locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (33 commits)\n lockdep: fix deadlock in lockdep_trace_alloc\n lockdep: annotate reclaim context (__GFP_NOFS), fix SLOB\n lockdep: annotate reclaim context (__GFP_NOFS), fix\n lockdep: build fix for !PROVE_LOCKING\n lockstat: warn about disabled lock debugging\n lockdep: use stringify.h\n lockdep: simplify check_prev_add_irq()\n lockdep: get_user_chars() redo\n lockdep: simplify get_user_chars()\n lockdep: add comments to mark_lock_irq()\n lockdep: remove macro usage from mark_held_locks()\n lockdep: fully reduce mark_lock_irq()\n lockdep: merge the !_READ mark_lock_irq() helpers\n lockdep: merge the _READ mark_lock_irq() helpers\n lockdep: simplify mark_lock_irq() helpers #3\n lockdep: further simplify mark_lock_irq() helpers\n lockdep: simplify the mark_lock_irq() helpers\n lockdep: split up mark_lock_irq()\n lockdep: generate usage strings\n lockdep: generate the state bit definitions\n ...\n" }, { "commit": "cf2f7d7c90279cdbc12429de278f3d27ac2050ae", "tree": "c84bb54712f566e6497ccadd1ae9f42b4baf0c63", "parents": [ "53d8f67082c9b86699dd88b7f9e667e245193f21", "a9caa3de249a6c43bc9c6aec87881f09276677e3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 16:06:04 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 16:06:04 2009 -0700" }, "message": "Merge branch \u0027proc-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc\n\n* \u0027proc-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc:\n Revert \"proc: revert /proc/uptime to -\u003eread_proc hook\"\n proc 2/2: remove struct proc_dir_entry::owner\n proc 1/2: do PDE usecounting even for -\u003eread_proc, -\u003ewrite_proc\n proc: fix sparse warnings in pagemap_read()\n proc: move fs/proc/inode-alloc.txt comment into a source file\n" }, { "commit": "53d8f67082c9b86699dd88b7f9e667e245193f21", "tree": "0e888713ee7a1a53b05852839aeb724fabe80490", "parents": [ "93c36ed8348934b462044d2d60ab345055318933", "8efb8c76fcdccf5050c0ea059dac392789baaff2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 15:12:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 15:12:14 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:\n PCI PM: Make pci_prepare_to_sleep() disable wake-up if needed\n radeonfb: Use __pci_complete_power_transition()\n PCI PM: Introduce __pci_[start|complete]_power_transition() (rev. 2)\n PCI PM: Restore config spaces of all devices during early resume\n PCI PM: Make pci_set_power_state() handle devices with no PM support\n PCI PM: Put devices into low power states during late suspend (rev. 2)\n PCI PM: Move pci_restore_standard_config to pci-driver.c\n PCI PM: Use pci_set_power_state during early resume\n PCI PM: Consistently use variable name \"error\" for pm call return values\n kexec: Change kexec jump code ordering\n PM: Change hibernation code ordering\n PM: Change suspend code ordering\n PM: Rework handling of interrupts during suspend-resume\n PM: Introduce functions for suspending and resuming device interrupts\n" }, { "commit": "93c36ed8348934b462044d2d60ab345055318933", "tree": "1d9b9236e83ed3f7aee2b79dee0e0a8e99df5e16", "parents": [ "3a355cc61d41bc31cc23a57247df63dba80a6018" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Mon Mar 30 14:08:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 14:28:59 2009 -0700" }, "message": "dma-debug: fix printk formats (i386)\n\nFix printk format warnings in dma-debug:\n\n lib/dma-debug.c:645: warning: format \u0027%016llx\u0027 expects type \u0027long long unsigned int\u0027, but argument 6 has type \u0027dma_addr_t\u0027\n lib/dma-debug.c:662: warning: format \u0027%016llx\u0027 expects type \u0027long long unsigned int\u0027, but argument 6 has type \u0027dma_addr_t\u0027\n lib/dma-debug.c:676: warning: format \u0027%016llx\u0027 expects type \u0027long long unsigned int\u0027, but argument 6 has type \u0027dma_addr_t\u0027\n lib/dma-debug.c:686: warning: format \u0027%016llx\u0027 expects type \u0027long long unsigned int\u0027, but argument 6 has type \u0027dma_addr_t\u0027\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3a355cc61d41bc31cc23a57247df63dba80a6018", "tree": "cf39d0b861fa8a33b748a95f3c86bbb33d9c2dac", "parents": [ "77e465867080c2d1e0c410e96dcdcd51e8584a6f" ], "author": { "name": "Jeff Mahoney", "email": "jeffm@suse.com", "time": "Mon Mar 30 16:49:58 2009 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 14:28:58 2009 -0700" }, "message": "reiserfs: xattr_create is unused with xattrs disabled\n\nThis patch ifdefs xattr_create when xattrs aren\u0027t enabled.\n\nSigned-off-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "77e465867080c2d1e0c410e96dcdcd51e8584a6f", "tree": "87400adb4219cda04a39f3fe1b970b64c85c747a", "parents": [ "dfbbe89e197a77f2c8046a51c74e33e35f878080" ], "author": { "name": "Alexander Beregalov", "email": "a.beregalov@gmail.com", "time": "Tue Mar 31 00:32:40 2009 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Mar 30 14:28:58 2009 -0700" }, "message": "reiserfs: fix build breakage\n\nFix this build error when REISERFS_FS_POSIX_ACL is not set:\n\n fs/reiserfs/inode.c: In function \u0027reiserfs_new_inode\u0027:\n fs/reiserfs/inode.c:1919: warning: passing argument 1 of \u0027reiserfs_inherit_default_acl\u0027 from incompatible pointer type\n fs/reiserfs/inode.c:1919: warning: passing argument 2 of \u0027reiserfs_inherit_default_acl\u0027 from incompatible pointer type\n fs/reiserfs/inode.c:1919: warning: passing argument 3 of \u0027reiserfs_inherit_default_acl\u0027 from incompatible pointer type\n fs/reiserfs/inode.c:1919: error: too many arguments to function \u0027reiserfs_inherit_default_acl\u0027\n\ndue to a missing transaction-handle argument in the non-acl\ncompatibility function.\n\nSigned-off-by: Alexander Beregalov \u003ca.beregalov@gmail.com\u003e\nAcked-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2f8501815256af8498904e68bd0984b1afffd6f8", "tree": "ffc9b4d8d80906fc2743b34dcdc93fdd2294f2c6", "parents": [ "19cefdffbfe0f7e280f21e80875937e8700e99e2" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Fri Mar 20 11:13:20 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Mar 30 23:19:24 2009 +0200" }, "message": "lockdep: fix deadlock in lockdep_trace_alloc\n\nHeiko reported that we grab the graph lock with irqs enabled.\n\nFix this by providng the same wrapper as all other lockdep entry\nfunctions have.\n\nReported-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nLKML-Reference: \u003c1237544000.24626.52.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a9caa3de249a6c43bc9c6aec87881f09276677e3", "tree": "900831b12af9b3cd4743d4ae5ed5a457f8125edb", "parents": [ "99b76233803beab302123d243eea9e41149804f3" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Fri Feb 20 17:07:22 2009 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 01:14:58 2009 +0400" }, "message": "Revert \"proc: revert /proc/uptime to -\u003eread_proc hook\"\n\nThis reverts commit 6c87df37dcb9c6c33923707fa5191e0a65874d60.\n\nproc files implemented through seq_file do pread(2) now.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "99b76233803beab302123d243eea9e41149804f3", "tree": "398178210fe66845ccd6fa4258ba762a87e023ad", "parents": [ "3dec7f59c370c7b58184d63293c3dc984d475840" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Mar 25 22:48:06 2009 +0300" }, "committer": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Mar 31 01:14:44 2009 +0400" }, "message": "proc 2/2: remove struct proc_dir_entry::owner\n\nSetting -\u003eowner as done currently (pde-\u003eowner \u003d THIS_MODULE) is racy\nas correctly noted at bug #12454. Someone can lookup entry with NULL\n-\u003eowner, thus not pinning enything, and release it later resulting\nin module refcount underflow.\n\nWe can keep -\u003eowner and supply it at registration time like -\u003eproc_fops\nand -\u003edata.\n\nBut this leaves -\u003eowner as easy-manipulative field (just one C assignment)\nand somebody will forget to unpin previous/pin current module when\nswitching -\u003eowner. -\u003eproc_fops is declared as \"const\" which should give\nsome thoughts.\n\n-\u003eread_proc/-\u003ewrite_proc were just fixed to not require -\u003eowner for\nprotection.\n\nrmmod\u0027ed directories will be empty and return \".\" and \"..\" -- no harm.\nAnd directories with tricky enough readdir and lookup shouldn\u0027t be modular.\nWe definitely don\u0027t want such modular code.\n\nRemoving -\u003eowner will also make PDE smaller.\n\nSo, let\u0027s nuke it.\n\nKudos to Jeff Layton for reminding about this, let\u0027s say, oversight.\n\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d12454\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" } ], "next": "3dec7f59c370c7b58184d63293c3dc984d475840" }