)]}' { "log": [ { "commit": "bc64efd220dcd4449aef8dd2564d73127b583b09", "tree": "21739809b2ab9b13677cae99f175c3983114abc6", "parents": [ "d8878ba3f05ae5bbfad5a6e72e5121c0ea35f989" ], "author": { "name": "Gustavo Fernando Padovan", "email": "gustavo@las.ic.unicamp.br", "time": "Fri Jul 25 01:47:33 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kernel/signal.c: change vars pid and tgid types to pid_t\n\nChange the type of pid and tgid variables from int to the POSIX type\npid_t.\n\nSigned-off-by: Gustavo F. Padovan \u003cgustavo@las.ic.unicamp.br\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d8878ba3f05ae5bbfad5a6e72e5121c0ea35f989", "tree": "31fbf7bd9605c103d8ef9e538beb54da8df04540", "parents": [ "e4901f92a8dbe843e76651a50f7a2a6dd3d53474" ], "author": { "name": "Michael Kerrisk", "email": "mtk.manpages@googlemail.com", "time": "Fri Jul 25 01:47:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "signals: make siginfo_t si_utime + si_sstime report times in USER_HZ, not HZ\n\nIn the switch to configurable HZ in 2.6, the treatment of the si_utime and\nsi_stime fields that are exposed to userland via the siginfo structure\nlooks to have been botched. As things stand, these fields report times in\nunits of HZ, so that userland gets information that varies depending on\nthe HZ that the kernel was configured with. This patch changes the\nreported values to use USER_HZ units.\n\nSigned-off-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e4901f92a8dbe843e76651a50f7a2a6dd3d53474", "tree": "4cfd5edd17fcf1fe5e4372611c561928a99107d0", "parents": [ "2b201a9eddf509e8e935b45e573648e36f4b623f" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "coredump: zap_threads: comments \u0026\u0026 use while_each_thread()\n\nNo changes in fs/exec.o\n\nThe for_each_process() loop in zap_threads() is very subtle, it is not\nclear why we don\u0027t race with fork/exit/exec. Add the fat comment.\n\nAlso, change the code to use while_each_thread().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2b201a9eddf509e8e935b45e573648e36f4b623f", "tree": "84cbb34667bcde5566e5c3d127c9089bb9792dab", "parents": [ "92413d771e7123304fb4b9efd2a00cccc946e383" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: do_signal_stop: kill the SIGNAL_UNKILLABLE check\n\nfae5fa44f1fd079ffbed8e0add929dd7bbd1347f changed do_signal_stop() to check\nSIGNAL_UNKILLABLE, this wasn\u0027t needed. If signal_group_exit() \u003d\u003d F, the\nsignal sent to SIGNAL_UNKILLABLE task must be already filtered out by the\ncaller, get_signal_to_deliver(). And if signal_group_exit() \u003d\u003d T we are\nnot going to stop.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "92413d771e7123304fb4b9efd2a00cccc946e383", "tree": "c973360a9bec6c965b9f4b41923357feec14aa3a", "parents": [ "3854a771821c970065e3203a0b40ddc4101538cc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:30 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: dequeue_signal: don\u0027t check SIGNAL_GROUP_EXIT when setting SIGNAL_STOP_DEQUEUED\n\ndequeue_signal() checks SIGNAL_GROUP_EXIT before setting\nSIGNAL_STOP_DEQUEUED. This was added by\n788e05a67c343fa22f2ae1d3ca264e7f15c25eaf a long ago to avoid the\ncoredump/SIGSTOP race.\n\nSince then the related code was changed, and now this subtle check is both\nincomplete and unneeded at the same time. It is incomplete because\nnowadays exec() doesn\u0027t set SIGNAL_GROUP_EXIT, so in fact we should check\nsignal_group_exit() to avoid a similar race. Fortunately, we doesn\u0027t need\nthe check at all. The only function which relies on SIGNAL_STOP_DEQUEUED\nis do_signal_stop(), and it ignores this flag if signal_group_exit() \u003d\u003d T,\nthis covers the SIGNAL_GROUP_EXIT case.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3854a771821c970065e3203a0b40ddc4101538cc", "tree": "b6f56b8d426c4a9682dfc8605a08a5c60f96a599", "parents": [ "100360f03077663b7bef3af44805b6cf700c3bee" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "__exit_signal: don\u0027t take rcu lock\n\nThere is no reason for rcu_read_lock() in __exit_signal(). tsk-\u003esighand\ncan only be changed if tsk does exec, obviously this is not possible.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "100360f03077663b7bef3af44805b6cf700c3bee", "tree": "338cedfd71101fdaeb317fc0692d1bf93bd3a1a7", "parents": [ "d4434207616980885205c605697868c0f07e4378" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: change collect_signal() to return void\n\nWith the recent changes collect_signal() always returns true. Change it\nto return void and update the single caller.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d4434207616980885205c605697868c0f07e4378", "tree": "82415d69b92557e09d57f42c49aba05ef4775a89", "parents": [ "6715ca451cfff1c9ce4b33ad9918a1dacf43997c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:28 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: collect_signal: simplify the \"still_pending\" logic\n\nFactor out sigdelset() calls and remove the \"still_pending\" variable.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6715ca451cfff1c9ce4b33ad9918a1dacf43997c", "tree": "a66cdfd7026e7ad40ad0675a35ff35886216ed5f", "parents": [ "96347e7759e2e433c427defa0fa1adfc8cce6226" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: collect_signal: remove the unneeded sigismember() check\n\ncollect_signal() checks sigismember(\u0026list-\u003esignal, sig), this is not\nneeded. This \"sig\" was just found by next_signal(), so it must be valid.\n\nWe have a (completely broken) call to -\u003enotifier in between, but it must\nnot play with sigpending-\u003esignal bits or unlock -\u003esiglock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "96347e7759e2e433c427defa0fa1adfc8cce6226", "tree": "0b78316c887be06b269288d7306d6cac038fe644", "parents": [ "4b7a1304267bff68260ae861784b27130e805be3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "posix timers: release_posix_timer: kill the bogus put_task_struct(-\u003eit_process);\n\nrelease_posix_timer() can\u0027t be called with -\u003eit_process !\u003d NULL. Once\nsys_timer_create() sets -\u003eit_process it must not call\nrelease_posix_timer(), otherwise we can race with another thread doing\nsys_timer_delete(), this timer is visible to idr_find() and unlocked.\n\nThe same is true for two other callers (actually, for any possible\ncaller), sys_timer_delete() and itimer_delete(). They must clear\n-\u003eit_process before unlock_timer() + release_posix_timer().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4b7a1304267bff68260ae861784b27130e805be3", "tree": "65065cc702a9d73fba4a85d0bdab5ed326a5b479", "parents": [ "da5ef6bb96158b0fc0d808704237a453af449124" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "posix timers: timer_delete: remove the bogus \"-\u003eit_process !\u003d NULL\" check\n\nsys_timer_delete() and itimer_delete() check \"timer-\u003eit_process !\u003d NULL\",\nthis looks completely bogus. -\u003eit_process \u003d\u003d NULL means that this timer\nis already under destruction or it is not fully initialized, this must not\nhappen.\n\n\tsys_timer_delete: the timer is locked, and lock_timer() can\u0027t succeed\n\tif -\u003eit_process \u003d\u003d NULL.\n\n\titimer_delete: it is called by exit_itimers() when there are no other\n\tthreads which can play with signal_struct-\u003eposix_timers.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "da5ef6bb96158b0fc0d808704237a453af449124", "tree": "a63113cc3f60c2a6916697bbb06d3c677fa7c121", "parents": [ "02412483777651a26b19a75e49c2a451a174ca9c" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: two minor code-cleanups\n\nIn cpuset_update_task_memory_state() local variable struct task_struct\n*tsk \u003d current;\n\nAnd local variable tsk is used 14 times and statement task_cs(tsk) is used\ntwice in this function. So using task_cs(tsk) instead of task_cs(current)\nis better for readability.\n\nAnd \"(struct cgroup_scanner *)\u0026scan\" is not good for readability also.\n(and \"container_of\" is used in cpuset_do_move_task(), not\n\"(cpuset_hotplug_scanner *)scan\")\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@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": "02412483777651a26b19a75e49c2a451a174ca9c", "tree": "2289c80253b5e6be9b3fe3635e919bbe7a3bd03d", "parents": [ "489a5393a20dcbf91104052120eb2eff8791b61b" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: code-cleanup for started_after\n\ncgroup(cgroup_scan_tasks) will initialize heap-\u003egt for us. This patch\nremoves started_after() and its helper-function.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@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": "489a5393a20dcbf91104052120eb2eff8791b61b", "tree": "63ed72ce1a7a5e4c5d361e8d1c7a876183d8bbf9", "parents": [ "c372e817afc629fea9ff6321313325ed0b4a855b" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: don\u0027t pass empty cpumasks to partition_sched_domains()\n\nI create lots of empty cpusets(empty cpumasks) and turn off the\n\"sched_load_balance\" in top cpuset.\n\nI found that all these empty cpumasks are passed to\npartition_sched_domains() in rebuild_sched_domains(), it\u0027s very\ntime-consuming for partition_sched_domains() and it\u0027s not need.\n\nIt also reduce memory consumed and some works in rebuild_sched_domains()\ntoo.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@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": "c372e817afc629fea9ff6321313325ed0b4a855b", "tree": "931188486a41a7923e4eb9b658a272b256b3c048", "parents": [ "f9b4fb8dabf38fb456c97f01aace07cb6e7c1723" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:47:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: avoid unnecessary sched domains rebuilding\n\nWhen changing \u0027sched_relax_domain_level\u0027, don\u0027t rebuild sched domains if\n\u0027cpus\u0027 is empty or \u0027sched_load_balance\u0027 is not set.\n\nAlso make the comments of rebuild_sched_domains() more readable.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@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": "f9b4fb8dabf38fb456c97f01aace07cb6e7c1723", "tree": "07fbf909044858d6c50b4098f94c8f084df3924c", "parents": [ "0b2f630a28d53b5a2082a5275bc3334b10373508" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Fri Jul 25 01:47:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpusets: update task\u0027s cpus_allowed and mems_allowed after CPU/NODE offline/online\n\nThe bug is that a task may run on the cpu/node which is not in its\ncpuset.cpus/ cpuset.mems.\n\nIt can be reproduced by the following commands:\n-----------------------------------\n# mkdir /dev/cpuset\n# mount -t cpuset xxx /dev/cpuset\n# mkdir /dev/cpuset/0\n# echo 0-1 \u003e /dev/cpuset/0/cpus\n# echo 0 \u003e /dev/cpuset/0/mems\n# echo $$ \u003e /dev/cpuset/0/tasks\n# echo 0 \u003e /sys/devices/system/cpu/cpu1/online\n# echo 1 \u003e /sys/devices/system/cpu/cpu1/online\n-----------------------------------\n\nThere is only CPU0 in cpuset.cpus, but the task in this cpuset runs on\nboth CPU0 and CPU1.\n\nIt is because the task\u0027s cpu_allowed didn\u0027t get updated after we did CPU\noffline/online manipulation. Similar for mem_allowed.\n\nThis patch fixes this bug expect for root cpuset. Because there is a\nproblem about root cpuset, in that whether it is necessary to update all\nthe tasks in root cpuset or not after cpu/node offline/online.\n\nIf updating, some kernel threads which is bound into a specified cpu will\nbe unbound.\n\nIf not updating, there is a bug in root cpuset. This bug is also caused\nby offline/online manipulation. For example, there is a dual-cpu machine.\n we create a sub cpuset in root cpuset and assign 1 to its cpus. And then\nwe attach some tasks into this sub cpuset. After this, we offline CPU1.\nNow, the tasks in this new cpuset are moved into root cpuset automatically\nbecause there is no cpu in sub cpuset. Then we online CPU1, we find all\nthe tasks which doesn\u0027t belong to root cpuset originally just run on CPU0.\n\nMaybe we need to add a flag in the task_struct to mark which task can\u0027t be\nunbound?\n\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b2f630a28d53b5a2082a5275bc3334b10373508", "tree": "24f7aa54cedcf941b89f59c964873f3034e76b23", "parents": [ "628f42355389cfb596ca3a5a5f64fb9054a2a06a" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Fri Jul 25 01:47:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cpusets: restructure the function update_cpumask() and update_nodemask()\n\nExtract two functions from update_cpumask() and update_nodemask().They\nwill be used later for updating tasks\u0027 cpus_allowed and mems_allowed after\nCPU/NODE offline/online.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "628f42355389cfb596ca3a5a5f64fb9054a2a06a", "tree": "a1a19788e554f4345f80ae835edcb5ad2402533a", "parents": [ "12b9804419cfb1c1bdac413f6c373af3b88d154b" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:20 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: limit change shrink usage\n\nShrinking memory usage at limit change.\n\n[akpm@linux-foundation.org: coding-style fixes]\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@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": "12b9804419cfb1c1bdac413f6c373af3b88d154b", "tree": "eff535da51774e53395a9fec0418bc5332009d3e", "parents": [ "cede86acd8bd5d2205dec28db8ac86410a3a19e8" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:19 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "res_counter: limit change support ebusy\n\nAdd an interface to set limit. This is necessary to memory resource\ncontroller because it shrinks usage at set limit.\n\nOther controllers may not need this interface to shrink usage because\nshrinking is not necessary or impossible.\n\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@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": "cede86acd8bd5d2205dec28db8ac86410a3a19e8", "tree": "67ad2d42cadee0b6f9a4de21e06602faae8d8604", "parents": [ "accf163e6ab729f1fc5fffaa0310e498270bf4e7" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:47:18 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: clean up checking of the disabled flag\n\nThose checks are unnecessary, because when the subsystem is disabled\nit can\u0027t be mounted, so those functions won\u0027t get called.\n\nThe check is needed in functions which will be called in other places\nexcept cgroup.\n\n[hugh@veritas.com: further checking of disabled flag]\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-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": "accf163e6ab729f1fc5fffaa0310e498270bf4e7", "tree": "798d5c97aa10bd26018fb1175a176c9d57560a39", "parents": [ "b76734e5e34e1889ab9fc5f3756570b1129f0f50" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:17 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: remove a redundant check\n\nBecause of remove refcnt patch, it\u0027s very rare case to that\nmem_cgroup_charge_common() is called against a page which is accounted.\n\nmem_cgroup_charge_common() is called when.\n 1. a page is added into file cache.\n 2. an anon page is _newly_ mapped.\n\nA racy case is that a newly-swapped-in anonymous page is referred from\nprural threads in do_swap_page() at the same time.\n(a page is not Locked when mem_cgroup_charge() is called from do_swap_page.)\n\nAnother case is shmem. It charges its page before calling add_to_page_cache().\nThen, mem_cgroup_charge_cache() is called twice. This case is handled in\nmem_cgroup_cache_charge(). But this check may be too hacky...\n\nSigned-off-by : KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b76734e5e34e1889ab9fc5f3756570b1129f0f50", "tree": "9929c25da8b9c29fcb0c5394023f66b7668cdfa1", "parents": [ "c9b0ed51483cc2fc42bb801b6675c4231b0e4634" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:16 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: add hints for branch\n\nShowing brach direction for obvious conditions.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c9b0ed51483cc2fc42bb801b6675c4231b0e4634", "tree": "1d322b4bfcaad3296752f6efcab918d1b13b50a3", "parents": [ "69029cd550284e32de13d6dd2f77b723c8a0e444" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:15 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: helper function for relcaim from shmem.\n\nA new call, mem_cgroup_shrink_usage() is added for shmem handling and\nrelacing non-standard usage of mem_cgroup_charge/uncharge.\n\nNow, shmem calls mem_cgroup_charge() just for reclaim some pages from\nmem_cgroup. In general, shmem is used by some process group and not for\nglobal resource (like file caches). So, it\u0027s reasonable to reclaim pages\nfrom mem_cgroup where shmem is mainly used.\n\n[hugh@veritas.com: shmem_getpage release page sooner]\n[hugh@veritas.com: mem_cgroup_shrink_usage css_put]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-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": "69029cd550284e32de13d6dd2f77b723c8a0e444", "tree": "b57b87e5025b6c01722f39302cb98d0dfcd58940", "parents": [ "e8589cc189f96b87348ae83ea4db38eaac624135" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: remove refcnt from page_cgroup\n\nmemcg: performance improvements\n\nPatch Description\n 1/5 ... remove refcnt fron page_cgroup patch (shmem handling is fixed)\n 2/5 ... swapcache handling patch\n 3/5 ... add helper function for shmem\u0027s memory reclaim patch\n 4/5 ... optimize by likely/unlikely ppatch\n 5/5 ... remove redundunt check patch (shmem handling is fixed.)\n\nUnix bench result.\n\n\u003d\u003d 2.6.26-rc2-mm1 + memory resource controller\nExecl Throughput 2915.4 lps (29.6 secs, 3 samples)\nC Compiler Throughput 1019.3 lpm (60.0 secs, 3 samples)\nShell Scripts (1 concurrent) 5796.0 lpm (60.0 secs, 3 samples)\nShell Scripts (8 concurrent) 1097.7 lpm (60.0 secs, 3 samples)\nShell Scripts (16 concurrent) 565.3 lpm (60.0 secs, 3 samples)\nFile Read 1024 bufsize 2000 maxblocks 1022128.0 KBps (30.0 secs, 3 samples)\nFile Write 1024 bufsize 2000 maxblocks 544057.0 KBps (30.0 secs, 3 samples)\nFile Copy 1024 bufsize 2000 maxblocks 346481.0 KBps (30.0 secs, 3 samples)\nFile Read 256 bufsize 500 maxblocks 319325.0 KBps (30.0 secs, 3 samples)\nFile Write 256 bufsize 500 maxblocks 148788.0 KBps (30.0 secs, 3 samples)\nFile Copy 256 bufsize 500 maxblocks 99051.0 KBps (30.0 secs, 3 samples)\nFile Read 4096 bufsize 8000 maxblocks 2058917.0 KBps (30.0 secs, 3 samples)\nFile Write 4096 bufsize 8000 maxblocks 1606109.0 KBps (30.0 secs, 3 samples)\nFile Copy 4096 bufsize 8000 maxblocks 854789.0 KBps (30.0 secs, 3 samples)\nDc: sqrt(2) to 99 decimal places 126145.2 lpm (30.0 secs, 3 samples)\n\n INDEX VALUES\nTEST BASELINE RESULT INDEX\n\nExecl Throughput 43.0 2915.4 678.0\nFile Copy 1024 bufsize 2000 maxblocks 3960.0 346481.0 875.0\nFile Copy 256 bufsize 500 maxblocks 1655.0 99051.0 598.5\nFile Copy 4096 bufsize 8000 maxblocks 5800.0 854789.0 1473.8\nShell Scripts (8 concurrent) 6.0 1097.7 1829.5\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n FINAL SCORE 991.3\n\n\u003d\u003d 2.6.26-rc2-mm1 + this set \u003d\u003d\nExecl Throughput 3012.9 lps (29.9 secs, 3 samples)\nC Compiler Throughput 981.0 lpm (60.0 secs, 3 samples)\nShell Scripts (1 concurrent) 5872.0 lpm (60.0 secs, 3 samples)\nShell Scripts (8 concurrent) 1120.3 lpm (60.0 secs, 3 samples)\nShell Scripts (16 concurrent) 578.0 lpm (60.0 secs, 3 samples)\nFile Read 1024 bufsize 2000 maxblocks 1003993.0 KBps (30.0 secs, 3 samples)\nFile Write 1024 bufsize 2000 maxblocks 550452.0 KBps (30.0 secs, 3 samples)\nFile Copy 1024 bufsize 2000 maxblocks 347159.0 KBps (30.0 secs, 3 samples)\nFile Read 256 bufsize 500 maxblocks 314644.0 KBps (30.0 secs, 3 samples)\nFile Write 256 bufsize 500 maxblocks 151852.0 KBps (30.0 secs, 3 samples)\nFile Copy 256 bufsize 500 maxblocks 101000.0 KBps (30.0 secs, 3 samples)\nFile Read 4096 bufsize 8000 maxblocks 2033256.0 KBps (30.0 secs, 3 samples)\nFile Write 4096 bufsize 8000 maxblocks 1611814.0 KBps (30.0 secs, 3 samples)\nFile Copy 4096 bufsize 8000 maxblocks 847979.0 KBps (30.0 secs, 3 samples)\nDc: sqrt(2) to 99 decimal places 128148.7 lpm (30.0 secs, 3 samples)\n\n INDEX VALUES\nTEST BASELINE RESULT INDEX\n\nExecl Throughput 43.0 3012.9 700.7\nFile Copy 1024 bufsize 2000 maxblocks 3960.0 347159.0 876.7\nFile Copy 256 bufsize 500 maxblocks 1655.0 101000.0 610.3\nFile Copy 4096 bufsize 8000 maxblocks 5800.0 847979.0 1462.0\nShell Scripts (8 concurrent) 6.0 1120.3 1867.2\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n FINAL SCORE 1004.6\n\nThis patch:\n\nRemove refcnt from page_cgroup().\n\nAfter this,\n\n * A page is charged only when !page_mapped() \u0026\u0026 no page_cgroup is assigned.\n\t* Anon page is newly mapped.\n\t* File page is added to mapping-\u003etree.\n\n * A page is uncharged only when\n\t* Anon page is fully unmapped.\n\t* File page is removed from LRU.\n\nThere is no change in behavior from user\u0027s view.\n\nThis patch also removes unnecessary calls in rmap.c which was used only for\nrefcnt mangement.\n\n[akpm@linux-foundation.org: fix warning]\n[hugh@veritas.com: fix shmem_unuse_inode charging]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-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": "e8589cc189f96b87348ae83ea4db38eaac624135", "tree": "6693422dc81e6da78c4ad892b0d326fb7f946dda", "parents": [ "508b7be0a5b06b64203512ed9b34191cddc83f56" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: better migration handling\n\nThis patch changes page migration under memory controller to use a\ndifferent algorithm. (thanks to Christoph for new idea.)\n\nBefore:\n - page_cgroup is migrated from an old page to a new page.\nAfter:\n - a new page is accounted , no reuse of page_cgroup.\n\nPros:\n\n - We can avoid compliated lock depndencies and races in migration.\n\nCons:\n\n - new param to mem_cgroup_charge_common().\n\n - mem_cgroup_getref() is added for handling ref_cnt ping-pong.\n\nThis version simplifies complicated lock dependency in page migraiton\nunder memory resource controller.\n\n new refcnt sequence is following.\n\na mapped page:\n prepage_migration() ..... +1 to NEW page\n try_to_unmap() ..... all refs to OLD page is gone.\n move_pages() ..... +1 to NEW page if page cache.\n remap... ..... all refs from *map* is added to NEW one.\n end_migration() ..... -1 to New page.\n\n page\u0027s mapcount + (page_is_cache) refs are added to NEW one.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: YAMAMOTO Takashi \u003cyamamoto@valinux.co.jp\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: 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": "508b7be0a5b06b64203512ed9b34191cddc83f56", "tree": "48b1be978a74d7c2b333efe8a2d1a1187bfe67f0", "parents": [ "a181b0e888a1d917edcab57cd73ccf7d8e75a46c" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:09 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: avoid unnecessary initialization\n\n* remove over-killing initialization (in fast path)\n* makeing the condition for PAGE_CGROUP_FLAG_ACTIVE be more obvious.\n\nSigned-off-by: KAMEAZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a181b0e888a1d917edcab57cd73ccf7d8e75a46c", "tree": "d58dc8da5c16840d3c530ee9cc0014906630ed4b", "parents": [ "7759fc9d10d3559f365cb122d81e0c0a185fe0fe" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Fri Jul 25 01:47:08 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "memcg: make global var read_mostly\n\nmem_cgroup_subsys and page_cgroup_cache should be read_mostly and\nMEM_CGROUP_RECLAIM_RETRIES can be just a fixed number.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nAcked-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7759fc9d10d3559f365cb122d81e0c0a185fe0fe", "tree": "2674cb439f9d27b5c0ef9ef078f6c8f7dac3b758", "parents": [ "4efd1a1b2f09a4b746dd9dc057986c6dadcb1317" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:47:08 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "devcgroup: code cleanup\n\n- clean up set_majmin()\n- use simple_strtoul() to parse major/minor\n\n[akpm@linux-foundation.org: fix simple_strtoul() usage]\n[kosaki.motohiro@jp.fujitsu.com: fix warnings]\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4efd1a1b2f09a4b746dd9dc057986c6dadcb1317", "tree": "048b7c286be2f17efce9b3482d9618cd150ee3f7", "parents": [ "e885dcde75685e09f23cffae1f6d5169c105b8a0" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:47:07 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "devcgroup: relax white-list protection down to RCU\n\nCurrently this list is protected with a simple spinlock, even for reading\nfrom one. This is OK, but can be better.\n\nActually I want it to be better very much, since after replacing the\nOpenVZ device permissions engine with the cgroup-based one I noticed, that\nwe set 12 default device permissions for each newly created container (for\n/dev/null, full, terminals, ect devices), and people sometimes have up to\n20 perms more, so traversing the ~30-40 elements list under a spinlock\ndoesn\u0027t seem very good.\n\nHere\u0027s the RCU protection for white-list - dev_whitelist_item-s are added\nand removed under the devcg-\u003elock, but are looked up in permissions\nchecking under the rcu_read_lock.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@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": "e885dcde75685e09f23cffae1f6d5169c105b8a0", "tree": "711a91e83fad632c194700839d3e47631aee677a", "parents": [ "856c13aa1ff6136c1968414fdea5938ea9d5ebf2" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Fri Jul 25 01:47:06 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cgroup_clone: use pid of newly created task for new cgroup\n\ncgroup_clone creates a new cgroup with the pid of the task. This works\ncorrectly for unshare, but for clone cgroup_clone is called from\ncopy_namespaces inside copy_process, which happens before the new pid is\ncreated. As a result, the new cgroup was created with current\u0027s pid.\nThis patch:\n\n\t1. Moves the call inside copy_process to after the new pid\n\t is created\n\t2. Passes the struct pid into ns_cgroup_clone (as it is not\n\t yet attached to the task)\n\t3. Passes a name from ns_cgroup_clone() into cgroup_clone()\n\t so as to keep cgroup_clone() itself simpler\n\t4. Uses pid_vnr() to get the process id value, so that the\n\t pid used to name the new cgroup is always the pid as it\n\t would be known to the task which did the cloning or\n\t unsharing. I think that is the most intuitive thing to\n\t do. This way, task t1 does clone(CLONE_NEWPID) to get\n\t t2, which does clone(CLONE_NEWPID) to get t3, then the\n\t cgroup for t3 will be named for the pid by which t2 knows\n\t t3.\n\n(Thanks to Dan Smith for finding the main bug)\n\nChangelog:\n\tJune 11: Incorporate Paul Menage\u0027s feedback: don\u0027t pass\n\t NULL to ns_cgroup_clone from unshare, and reduce\n\t\t patch size by using \u0027nodename\u0027 in cgroup_clone.\n\tJune 10: Original version\n\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Serge Hallyn \u003cserge@us.ibm.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nTested-by: Dan Smith \u003cdanms@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.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": "856c13aa1ff6136c1968414fdea5938ea9d5ebf2", "tree": "deee908f253c77cbcb868a915e45bfb2ed99383c", "parents": [ "f92523e3a7861f5dbd76021e0719a35fe8771f2d" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: convert res_counter_write() to be a cgroups write_string() handler\n\nCurrently res_counter_write() is a raw file handler even though it\u0027s\nultimately taking a number, since in some cases it wants to\npre-process the string when converting it to a number.\n\nThis patch converts res_counter_write() from a raw file handler to a\nwrite_string() handler; this allows some of the boilerplate\ncopying/locking/checking to be removed, and simplies the cleanup path,\nsince these functions are now performed by the cgroups framework.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f92523e3a7861f5dbd76021e0719a35fe8771f2d", "tree": "933c9e6e1f0683ac1c6bc019da5b91c9e567bf7c", "parents": [ "e37123953292146445c8629b3950d0513fd10ae2" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:03 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: convert devcgroup_access_write() into a cgroup write_string() handler\n\nThis patch converts devcgroup_access_write() from a raw file handler\ninto a handler for the cgroup write_string() method. This allows some\nboilerplate copying/locking/checking to be removed and simplifies the\ncleanup path, since these functions are performed by the cgroups\nframework before calling the handler.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.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": "e37123953292146445c8629b3950d0513fd10ae2", "tree": "8481ef1898a61cb5438205df349e01c432a1d55b", "parents": [ "af351026aafc8da16518a02b41c66d3e0c1cdef4" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:02 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: remove cpuset_common_file_write()\n\nThis patch tweaks the signatures of the update_cpumask() and\nupdate_nodemask() functions so that they can be called directly as\nhandlers for the new cgroups write_string() method.\n\nThis allows cpuset_common_file_write() to be removed.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.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": "af351026aafc8da16518a02b41c66d3e0c1cdef4", "tree": "f294376157f2e1c91f5a4b6ff90b4183dc6f7969", "parents": [ "6379c106152388f7ea45d6dda63edda0e9181fc8" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: turn attach_task_by_pid directly into a cgroup write handler\n\nThis patch changes attach_task_by_pid() to take a u64 rather than a\nstring; as a result it can be called directly as a control groups\nwrite_u64 handler, and cgroup_common_file_write() can be removed.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.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": "6379c106152388f7ea45d6dda63edda0e9181fc8", "tree": "ad38aad4eb0f2b4431ff15ec85c3e3aea99f7207", "parents": [ "84eea842886ac35020be6043e04748ed22014359" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: move notify_on_release file to separate write handler\n\nThis patch moves the write handler for the cgroups notify_on_release\nfile into a separate handler. This handler requires no cgroups locking\nsince it relies on atomic bitops for synchronization.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.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": "84eea842886ac35020be6043e04748ed22014359", "tree": "acd2bb7c3bc267a032b5e637c598708f38c68cb3", "parents": [ "e788e066c651b1bbf4a927dc95395c1aa13be436" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:00 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: misc cleanups to write_string patchset\n\nThis patch contains cleanups suggested by reviewers for the recent\nwrite_string() patchset:\n\n- pair cgroup_lock_live_group() with cgroup_unlock() in cgroup.c for\n clarity, rather than directly unlocking cgroup_mutex.\n\n- make the return type of cgroup_lock_live_group() a bool\n\n- use a #define\u0027d constant for the local buffer size in read/write functions\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.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": "e788e066c651b1bbf4a927dc95395c1aa13be436", "tree": "8ffb80dc5917ba5b77e17ab2b71afcea3aadfef8", "parents": [ "db3b14978abc02041046ed8353f0899cb58ffffc" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:59 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: move the release_agent file to use typed handlers\n\nAdds cgroup_release_agent_write() and cgroup_release_agent_show()\nmethods to handle writing/reading the path to a cgroup hierarchy\u0027s\nrelease agent. As a result, cgroup_common_file_read() is now unnecessary.\n\nAs part of the change, a previously-tolerated race in\ncgroup_release_agent() is avoided by copying the current\nrelease_agent_path prior to calling call_usermode_helper().\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.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": "db3b14978abc02041046ed8353f0899cb58ffffc", "tree": "355ba027c6354bd13bcbb5318e8478b3de4599e9", "parents": [ "ce16b49d37e748574f7fabc2726268d542d0aa1a" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: add write_string cgroup control file method\n\nThis patch adds a write_string() method for cgroups control files. The\nsemantics are that a buffer is copied from userspace to kernelspace\nand the handler function invoked on that buffer. The buffer is\nguaranteed to be nul-terminated, and no longer than max_write_len\n(defaulting to 64 bytes if unspecified). Later patches will convert\nexisting raw file write handlers in control group subsystems to use\nthis method.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.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": "ce16b49d37e748574f7fabc2726268d542d0aa1a", "tree": "dc079efb12661484efa7dd2659a38cfd7b3f3fd5", "parents": [ "8947f9d5b361ce927be6d5c11fed57905b7a4100" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: clean up whitespace in struct cftype\n\nThis patch removes some extraneous spaces from method declarations in\nstruct cftype, to fit in with conventional kernel style.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.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": "8947f9d5b361ce927be6d5c11fed57905b7a4100", "tree": "f4a7d212cfef8889a60022c8ff3c9cfcf97962c2", "parents": [ "71cbb949d17d4d776abd547135feb7f3282405c8" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:56 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: annotate two variables with __read_mostly\n\n- need_forkexit_callback will be read only after system boot.\n- use_task_css_set_links will be read only after it\u0027s set.\n\nAnd these 2 variables are checked when a new process is forked.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nAcked-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": "71cbb949d17d4d776abd547135feb7f3282405c8", "tree": "decd47a6cb05a36bb8a2f224b50bd12a8acc862e", "parents": [ "f2992db2a4f7ae10f61d5bc68c7c1528cec639e2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Fri Jul 25 01:46:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup: list_for_each cleanup\n\n--------------------------\nwhile() {\n\tlist_entry();\n\t...\n}\n--------------------------\n\nis equivalent to following code.\n\n--------------------------\nlist_for_each_entry(){\n\t...\n}\n--------------------------\n\nlater can review easily more.\n\nthis patch is just clean up.\nit doesn\u0027t have any behavor change.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f2992db2a4f7ae10f61d5bc68c7c1528cec639e2", "tree": "a21366b27d11dbaef7aa810d50a935ef08538813", "parents": [ "7e9abd89cbdf9b73d327d8173343abce9022609b" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Fri Jul 25 01:46:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "Mark res_counter_charge(_locked) with __must_check\n\nIgnoring their return values may result in counter underflow in the future -\nwhen the value charged will be uncharged (or in \"leaks\" - when the value is\nnot uncharged).\n\nThis also prevents from using charging routines to decrement the\ncounter value (i.e. uncharge it) ;)\n\n(Current code works OK with res_counter, however :) )\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Paul Menage \u003cmenage@google.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": "7e9abd89cbdf9b73d327d8173343abce9022609b", "tree": "7e738e46ba5e384fc6bc984196ed2d09a0ea8102", "parents": [ "9d96d82da437ed5f2053821779ed5d7797ed1f81" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup: use read lock to guard find_existing_css_set()\n\nThe function does not modify anything (except the temporary css template), so\nit\u0027s sufficient to hold read lock.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.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": "9d96d82da437ed5f2053821779ed5d7797ed1f81", "tree": "6bf62ad31e360f99c39e867ad2838423f87ac1cf", "parents": [ "657d3bfa98e542271b449f8cd84c7501ae2b2255" ], "author": { "name": "Mike Frysinger", "email": "vapier@gentoo.org", "time": "Fri Jul 25 01:46:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "procfs-guide: drop pointless \u0026nbsp; entities\n\nHaving trailing \u0026nbsp; entities in a revision numer seems pretty pointless\nto me. More so, it\u0027s causing me pains, so just drop them since no other\nguide is doing this.\n\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nAcked-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": "657d3bfa98e542271b449f8cd84c7501ae2b2255", "tree": "1e618dfbb055f2508aca8f0e503e0b525f2b4d0b", "parents": [ "03b063436ca1076301de58d9d628f610ab5404ad" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "quota: implement sending information via netlink about user below quota\n\nSometimes it may be useful for userspace to know (e.g. for some hosting\nguys) that some user stopped exceeding his hardlimit or softlimit in\nquotas. Implement sending of such events to userspace via quota netlink\nprotocol so that they don\u0027t have to poll for such events. Based on idea\nand initial implementation by Vladislav Bogdanov.\n\nCc: Vladislav Bogdanov \u003cslava@nsys.by\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "03b063436ca1076301de58d9d628f610ab5404ad", "tree": "c0c21837706d6c462cef3183f5e514405d1af993", "parents": [ "74abb9890dafb12a50dc140de215ed477beb1b88" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "quota: convert macros to inline functions\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "74abb9890dafb12a50dc140de215ed477beb1b88", "tree": "30188b5932e54bc67fb88c0d05e5ba631fe9b698", "parents": [ "02a55ca87185e114e5d298a8d00608501dbabf67" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:51 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "quota: move function-macros from quota.h to quotaops.h\n\nMove declarations of some macros, which should be in fact functions to\nquotaops.h. This way they can be later converted to inline functions\nbecause we can now use declarations from quota.h. Also add necessary\nincludes of quotaops.h to a few files.\n\n[akpm@linux-foundation.org: fix JFS build]\n[akpm@linux-foundation.org: fix UFS build]\n[vegard.nossum@gmail.com: fix QUOTA\u003dn build]\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Arjen Pool \u003carjenpool@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": "02a55ca87185e114e5d298a8d00608501dbabf67", "tree": "958b60f8fb2936d7207146ff99be431c2c17edc5", "parents": [ "b85f4b87a511bea86dac68c4f0fabaee2cac6c4c" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "quota: cleanup loop in sync_dquots()\n\nMake loop in sync_dquots() checking whether there\u0027s something to write\nmore readable, remove useless variable and macro info_any_dirty() which\nis used only in this place.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: \"Vegard Nossum\" \u003cvegard.nossum@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": "b85f4b87a511bea86dac68c4f0fabaee2cac6c4c", "tree": "978e541e47effe07119862f04becbb4f79b02742", "parents": [ "b48d380541f634663b71766005838edbb7261685" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "quota: rename quota functions from upper case, make bigger ones non-inline\n\nCleanup quotaops.h: Rename functions from uppercase to lowercase (and\ndefine backward compatibility macros), move larger functions to dquot.c\nand make them non-inline.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b48d380541f634663b71766005838edbb7261685", "tree": "bb382e53ada390bf42b219b80c662992abd3b335", "parents": [ "41003cde95e7e976d3876dbdcdc83dd0a9059279" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "quota: fix possible infinite loop in quota code\n\nWhen quota structure is going to be dropped and it is dirty, quota code tries\nto write it. If the write fails for some reason (e. g. transaction cannot\nbe started because the journal is aborted), we try writing again and again and\nagain... Fix the problem by clearing the dirty bit even if the write failed.\n\n(akpm: for 2.6.27, 2.6.26.x and 2.6.25.x)\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nReviewed-by: dingdinghua \u003cdingdinghua85@gmail.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "41003cde95e7e976d3876dbdcdc83dd0a9059279", "tree": "fdd52c7e7cfcd27ef80f211eb6e672938edc1e34", "parents": [ "b271e067c896ad4082b15e96077675d08db40625" ], "author": { "name": "Joe Peterson", "email": "joe@skyrush.com", "time": "Fri Jul 25 01:46:48 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "UTC timestamp option for FAT filesystems fix\n\nSigned-off-by: Joe Peterson \u003cjoe@skyrush.com\u003e\nAcked-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b271e067c896ad4082b15e96077675d08db40625", "tree": "1837d1c988226116e277c4f71b7f57aed5a7df05", "parents": [ "e8938a62a85d1f487e02c3b01955b47c9598f6d2" ], "author": { "name": "Joe Peterson", "email": "joe@skyrush.com", "time": "Fri Jul 25 01:46:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fatfs: add UTC timestamp option\n\nProvide a new mount option (\"tz\u003dUTC\") for DOS (vfat/msdos) filesystems,\nallowing timestamps to be in coordinated universal time (UTC) rather than\nlocal time in applications where doing this is advantageous.\n\nIn particular, portable devices that use fat/vfat (such as digital\ncameras) can benefit from using UTC in their internal clocks, thus\navoiding daylight saving time errors and general time ambiguity issues.\nThe user of the device does not have to worry about changing the time when\nmoving from place or when daylight saving changes.\n\nThe new mount option, when set, disables the counter-adjustment that Linux\ncurrently makes to FAT timestamp info in anticipation of the normal\nuserspace time zone correction. When used in this new mode, all daylight\nsaving time and time zone handling is done in userspace as is normal for\nmany other filesystems (like ext3). The default mode, which remains\nunchanged, is still appropriate when mounting volumes written in Windows\n(because of its use of local time).\n\nI originally based this patch on one submitted last year by Paul Collins,\nbut I updated it to work with current source and changed variable/option\nnaming. Ogawa Hirofumi (who maintains these filesystems) and I discussed\nthis patch at length on lkml, and he suggested using the option name in\nthe attached version of the patch. Barry Bouwsma pointed out a good\naddition to the patch as well.\n\nSigned-off-by: Joe Peterson \u003cjoe@skyrush.com\u003e\nSigned-off-by: Paul Collins \u003cpaul@ondioline.org\u003e\nAcked-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nCc: Barry Bouwsma \u003cfree_beer_for_all@yahoo.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e8938a62a85d1f487e02c3b01955b47c9598f6d2", "tree": "39ef38f2ab6c69834cb5187fc2e3c6fcdbdef506", "parents": [ "cf6ae8b50e0ee3f764392dadd1970e3f03c40773" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:46:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "remove unused #include \u003clinux/dirent.h\u003e\u0027s\n\nRemove some unused #include \u003clinux/dirent.h\u003e\u0027s.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cf6ae8b50e0ee3f764392dadd1970e3f03c40773", "tree": "e58c4c82e4d20ed296cc2030fd1b73bed12903d1", "parents": [ "7557bc66be629d19a402e752673708bfbb8b5e86" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:46:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "remove the in-kernel struct dirent{,64}\n\nThe kernel struct dirent{,64} were different from the ones in\nuserspace.\n\nEven worse, we exported the kernel ones to userspace.\n\nBut after the fat usages are fixed we can remove the conflicting\nkernel versions.\n\nReviewed-by: H. Peter Anvin \u003chpa@kernel.org\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7557bc66be629d19a402e752673708bfbb8b5e86", "tree": "c7be80cf3eb21ac338f962c211314088d570984e", "parents": [ "dcd8c53f13f068ee039589d84fbd0baf686abc41" ], "author": { "name": "Rene Scharfe", "email": "rene.scharfe@lsrfire.ath.cx", "time": "Fri Jul 25 01:46:45 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "msdos fs: remove unsettable atari option\n\nIt has been impossible to set the option \u0027atari\u0027 of the MSDOS filesystem\nfor several years. Since nobody seems to have missed it, let\u0027s remove its\nremains.\n\nSigned-off-by: Rene Scharfe \u003crene.scharfe@lsrfire.ath.cx\u003e\nAcked-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dcd8c53f13f068ee039589d84fbd0baf686abc41", "tree": "76dff1ae4a77a8756925e5dfe283051e12395a3e", "parents": [ "98a15160049fc1a0f822047f33ff513906a35567" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Fri Jul 25 01:46:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fat: small optimization to __fat_readdir()\n\nThis removes unnecessary parsing for directory entries.\n\nIf short_only, we don\u0027t need to parse longname. And if !both and it found\nthe longname, we don\u0027t need shortname.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "98a15160049fc1a0f822047f33ff513906a35567", "tree": "94b25054da238755d525077d21f8717bb04ac2fb", "parents": [ "d688611674cc9c265ee67e89d2ea8bf060c17e8d" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Fri Jul 25 01:46:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fat: use same logic in fat_search_long() and __fat_readdir()\n\nThis uses uses stack for shortname, and uses __getname() for longname in\nfat_search_long() and __fat_readdir(). By this, it removes unneeded\n__getname() for shortname.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d688611674cc9c265ee67e89d2ea8bf060c17e8d", "tree": "ad08fc50024170e7c8b6fd31d23b6ab6395d5099", "parents": [ "531f710f8e68fd2bad7516a090bff372f5f9cf6d" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Fri Jul 25 01:46:43 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fat: cleanup fs/fat/dir.c\n\nThis is no logic changes, just cleans fs/fat/dir.c up.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "531f710f8e68fd2bad7516a090bff372f5f9cf6d", "tree": "1f0434a54a9e8b62736438e6cd151bf5abddaadd", "parents": [ "4596c8aaf96e8634ca755c9f34b91420a39bebd4" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:46:43 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fat/dir.c: switch to struct __fat_dirent\n\nstruct __fat_dirent is what was formerly the kernel struct dirent (that\nwas different from the userspace struct dirent).\n\nConverting all fat users to struct __fat_dirent will allow us to get rid\nof the conflicting struct dirent definition.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4596c8aaf96e8634ca755c9f34b91420a39bebd4", "tree": "e9ef95f9bf619dfa50c2bde1de553b32860d469c", "parents": [ "8d44d9741f6808c107a144f469fb89e6fe7c55e3" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Fri Jul 25 01:46:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fat: fix VFAT_IOCTL_READDIR_xxx and cleanup for userland\n\n\"struct dirent\" is a kernel type here, but is a **different type** in\nuserspace! This means both the structure and the IOCTL number is wrong!\n\nSo, this adds new \"struct __fat_dirent\" to generate correct IOCTL number.\nAnd kernel stuff moves to under __KERNEL__.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8d44d9741f6808c107a144f469fb89e6fe7c55e3", "tree": "8260a685c5eb6710a36991548d6cb9dbf31520c7", "parents": [ "3264d4ded4d916d294d776b77b72d477c63ac3be" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Fri Jul 25 01:46:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:34 2008 -0700" }, "message": "fat: fix parse_options()\n\nCurrent parse_options() exits too early. We need to run the code of\nbottom in this function even if users doesn\u0027t specify options.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3264d4ded4d916d294d776b77b72d477c63ac3be", "tree": "faa1e7e73e8ba3535688d27c62b9e0f22f824f56", "parents": [ "90415deac75a761a25239af6f56381546f8d2201" ], "author": { "name": "Shen Feng", "email": "shen@cn.fujitsu.com", "time": "Fri Jul 25 01:46:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: remove double definitions of xattr macros\n\nremove the definitions of macros:\nXATTR_SECURITY_PREFIX\nXATTR_TRUSTED_PREFIX\nXATTR_USER_PREFIX\nsince they are defined in linux/xattr.h\n\nSigned-off-by: Shen Feng \u003cshen@cn.fujitsu.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@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": "90415deac75a761a25239af6f56381546f8d2201", "tree": "dbe5a717fa3629533653af99492cd348a0ec7e1f", "parents": [ "afe70259076fff0446001eaa1a287f615241a357" ], "author": { "name": "Jeff Mahoney", "email": "jeffm@suse.com", "time": "Fri Jul 25 01:46:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: convert j_commit_lock to mutex\n\nj_commit_lock is a semaphore but uses it as if it were a mutex. This patch\nconverts it to a mutex.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Edward Shishkin \u003cedward.shishkin@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": "afe70259076fff0446001eaa1a287f615241a357", "tree": "d619c7f6235264a7b08aec16ba3563a686415079", "parents": [ "f68215c4640a38d66429014e524a627bf572d26a" ], "author": { "name": "Jeff Mahoney", "email": "jeffm@suse.com", "time": "Fri Jul 25 01:46:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: convert j_flush_sem to mutex\n\nj_flush_sem is a semaphore but uses it as if it were a mutex. This patch\nconverts it to a mutex.\n\n[akpm@linux-foundation.org: fix mutex_trylock retval treatment]\nSigned-off-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Edward Shishkin \u003cedward.shishkin@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": "f68215c4640a38d66429014e524a627bf572d26a", "tree": "9880a7adbdcda5dba88fe875520b787555b80802", "parents": [ "00b441970a0ab48185244300ac7d4e4eb76df692" ], "author": { "name": "Jeff Mahoney", "email": "jeffm@suse.com", "time": "Fri Jul 25 01:46:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: convert j_lock to mutex\n\nj_lock is a semaphore but uses it as if it were a mutex. This patch converts\nit to a mutex.\n\nSigned-off-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: Chris Mason \u003cchris.mason@oracle.com\u003e\nCc: Edward Shishkin \u003cedward.shishkin@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": "00b441970a0ab48185244300ac7d4e4eb76df692", "tree": "5e0e7b72b0388dd889da267e669dd1e427e82946", "parents": [ "4506567b24d3ea707e46e8aad64caef539382f4b" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: correct mount option parsing to detect when quota options can be changed\n\nWe should not allow user to change quota mount options when quota is just\nsuspended. It would make mount options and internal quota state inconsistent.\n\nAlso we should not allow user to change quota format when quota is turned on.\nOn the other hand we can just silently ignore when some option is set to the\nvalue it already has (some mount versions do this on remount). Finally, we\nshould not discard current quota options if parsing of mount options fails.\n\nCc: \u003creiserfs-devel@vger.kernel.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4506567b24d3ea707e46e8aad64caef539382f4b", "tree": "71ae6e1674f3675f178c8d14a0b024b77808d01b", "parents": [ "5d4f7fddf8882b214e4aabb3bdb37f90a72b2537" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: fix typos in messages and comments (journalled -\u003e journaled)\n\nCc: \u003creiserfs-devel@vger.kernel.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5d4f7fddf8882b214e4aabb3bdb37f90a72b2537", "tree": "b8cf1f13c1032367c0160722764adf1cbca9e92a", "parents": [ "895c23f8c39c0c8d7b536bb2566d4aa968d78be2" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "reiserfs: fix synchronization of quota files in journal\u003ddata mode\n\nIn journal\u003ddata mode, it is not enough to do write_inode_now() as done in\nvfs_quota_on() to write all data to their final location (which is needed for\nquota_read to work correctly). Calling journal_end_sync() before calling\nvfs_quota_on() does it\u0027s job because transactions are committed to the journal\nand data marked as dirty in memory so write_inode_now() writes them to their\nfinal locations.\n\nCc: \u003creiserfs-devel@vger.kernel.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "895c23f8c39c0c8d7b536bb2566d4aa968d78be2", "tree": "3744aca0dc59f075e53af348062ad11efdb21192", "parents": [ "39f8d472f280dee6503a364d1d911b9e20ce3ec9" ], "author": { "name": "Matthias Kaehlcke", "email": "matthias@kaehlcke.net", "time": "Fri Jul 25 01:46:36 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "hfsplus: convert the extents_lock in a mutex\n\nApple Extended HFS file system: The semaphore extents lock is used as a\nmutex. Convert it to the mutex API.\n\nSigned-off-by: Matthias Kaehlcke \u003cmatthias@kaehlcke.net\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "39f8d472f280dee6503a364d1d911b9e20ce3ec9", "tree": "43c05018acca3e30234b914e4bf80439915a2807", "parents": [ "3084b72de73a6f8af0f16989ffb348068bd066d4" ], "author": { "name": "Matthias Kaehlcke", "email": "matthias@kaehlcke.net", "time": "Fri Jul 25 01:46:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "hfs: convert extents_lock in a mutex\n\nApple Macintosh file system: The semaphore extens_lock is used as a mutex.\nConvert it to the mutex API\n\nSigned-off-by: Matthias Kaehlcke \u003cmatthias@kaehlcke.net\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3084b72de73a6f8af0f16989ffb348068bd066d4", "tree": "ef0993d1c2d8e14237cda0277eb68e4fb3653523", "parents": [ "de0ca06a99c33df8333955642843331ab6b6e7ff" ], "author": { "name": "Matthias Kaehlcke", "email": "matthias@kaehlcke.net", "time": "Fri Jul 25 01:46:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "hfs: convert bitmap_lock in a mutex\n\nApple Macintosh file system: The semaphore bitmap_lock is used as a mutex.\nConvert it to the mutex API\n\nSigned-off-by: Matthias Kaehlcke \u003cmatthias@kaehlcke.net\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "de0ca06a99c33df8333955642843331ab6b6e7ff", "tree": "3799e038c41476fd6366dae2a7919474125c4bd8", "parents": [ "c0a1633b6201ef79e31b7da464d44fdf5953054d" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:46:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "coda: remove CODA_FS_OLD_API\n\nWhile fixing CONFIG_ leakages to the userspace kernel headers I ran into\nCODA_FS_OLD_API.\n\nAfter five years, are there still people using the old API left?\nEspecially considering that you have to choose at compile time which API\nto support in the kernel (and distributions tend to offer the new API for\nsome time).\n\nJan: \"The old API can definitely go. Around the time the new\n interface went in there were some non-Coda userspace file system\n implementations that took a while longer to convert to the new API,\n but by now they all switched to the new interface or in some cases\n to a FUSE-based solution.\"\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: Jan Harkes \u003cjaharkes@cs.cmu.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c0a1633b6201ef79e31b7da464d44fdf5953054d", "tree": "f379e3541e56aa805c5e3b15b2e5eadd3ca8cc28", "parents": [ "275c0a8f1253a7542ad9726956c918d8a1f694c4" ], "author": { "name": "Adam Greenblatt", "email": "adam.greenblatt@gmail.com", "time": "Fri Jul 25 01:46:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "isofs: fix minor filesystem corruption\n\nSome iso9660 images contain files with rockridge data that is either\nincorrect or incompletely parsed. Prior to commit\nf2966632a134e865db3c819346a1dc7d96e05309 (\"[PATCH] rock: handle directory\noverflows\") (included with kernel 2.6.13) the kernel ignored the rockridge\ndata for these files, while still allowing the files to be accessed under\ntheir non-rockridge names. That commit inadvertently changed things so\nthat files with invalid rockridge data could not be accessed at all. (I\nran across the problem when comparing some old CDs with hard disk copies I\nhad made long ago under kernel 2.4: a few of the files on the hard disk\ncopies were no longer visible on the CDs.)\n\nThis change reverts to the pre-2.6.13 behavior.\n\nSigned-off-by: Adam Greenblatt \u003cadam.greenblatt@gmail.com\u003e\nReviewed-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[2.6.25.x, 2.6.26.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "275c0a8f1253a7542ad9726956c918d8a1f694c4", "tree": "775834cb708749217f56523b9517aba700978409", "parents": [ "cbe5f466f6995e10a10c7ae66d6dc8608f08a6b8" ], "author": { "name": "Duane Griffin", "email": "duaneg@dghda.com", "time": "Fri Jul 25 01:46:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:33 2008 -0700" }, "message": "ext3: validate directory entry data before use\n\next3_dx_find_entry uses ext3_next_entry without verifying that the entry\nis valid. If its rec_len \u003d\u003d 0 this causes an infinite loop. Refactor the\nloop to check the validity of entries before checking whether they match\nand moving onto the next one.\n\nThere are other uses of ext3_next_entry in this file which also look\nproblematic. They should be reviewed and fixed if/when we have a\ntest-case that triggers them.\n\nThis patch fixes the first case (image hdb.25.softlockup.gz) reported in\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d10882.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@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": "cbe5f466f6995e10a10c7ae66d6dc8608f08a6b8", "tree": "237bbbda6ddd6e38dc7004cd870cbce7af0684c4", "parents": [ "8ef2720397bb813d4985405a5ae7b8ad6474188b" ], "author": { "name": "Hidehiro Kawai", "email": "hidehiro.kawai.ez@hitachi.com", "time": "Fri Jul 25 01:46:30 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: don\u0027t abort if flushing file data failed\n\nIn ordered mode, the current jbd aborts the journal if a file data buffer\nhas an error. But this behavior is unintended, and we found that it has\nbeen adopted accidentally.\n\nThis patch undoes it and just calls printk() instead of aborting the\njournal. Additionally, set AS_EIO into the address_space object of the\nfailed buffer which is submitted by journal_do_submit_data() so that\nfsync() can get -EIO.\n\nMissing error checkings are also added to inform errors on file data\nbuffers to the user. The following buffers are targeted.\n\n (a) the buffer which has already been written out by pdflush\n (b) the buffer which has been unlocked before scanned in the\n t_locked_list loop\n\n[akpm@linux-foundation.org: improve grammar in a printk]\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: \u003clinux-ext4@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": "8ef2720397bb813d4985405a5ae7b8ad6474188b", "tree": "d96e7aeeff719a658324661301a7c026f11a3263", "parents": [ "fc80c44277b3c92d808b73e9d40e120229aa4b6a" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: kill 2 useless magic numbers\n\ndx_root_limit() will never return 20, and I can\u0027t figure out what 20\nstands for. This function has never changed since htree directory\nindexing was merged.\n\nSimilar for dx_node_limit() and the magic 22.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Andreas Dilger \u003cadilger@sun.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fc80c44277b3c92d808b73e9d40e120229aa4b6a", "tree": "db0848f89305aa3c90b07ad773badc17f858405e", "parents": [ "a10320e8f7c4dcfa050aac566092f29b40458d5a" ], "author": { "name": "Toshiyuki Okajima", "email": "toshi.okajima@jp.fujitsu.com", "time": "Fri Jul 25 01:46:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: positively dispose the unmapped data buffers in journal_commit_transaction()\n\nAfter ext3-ordered files are truncated, there is a possibility that the\npages which cannot be estimated still remain. Remaining pages can be\nreleased when the system has really few memory. So, it is not memory\nleakage. But the resource management software etc. may not work\ncorrectly.\n\nIt is possible that journal_unmap_buffer() cannot release the buffers, and\nthe pages to which they belong because they are attached to a commiting\ntransaction and journal_unmap_buffer() cannot release them. To release\nsuch the buffers and the pages later, journal_unmap_buffer() leaves it to\njournal_commit_transaction(). (journal_unmap_buffer() puts the mark\n\u0027BH_Freed\u0027 to the buffers so that journal_commit_transaction() can\nidentify whether they can be released or not.)\n\nIn the journalled mode and the writeback mode, jbd does with only metadata\nbuffers. But in the ordered mode, jbd does with metadata buffers and also\ndata buffers.\n\nActually, journal_commit_transaction() releases only the metadata buffers\nof which release is demanded by journal_unmap_buffer(), and also releases\nthe pages to which they belong if possible.\n\nAs a result, the data buffers of which release is demanded by\njournal_unmap_buffer() remain after a transaction commits. And also the\npages to which they belong remain.\n\nSuch the remained pages don\u0027t have mapping any longer. Due to this fact,\nthere is a possibility that the pages which cannot be estimated remain.\n\nThe metadata buffers marked \u0027BH_Freed\u0027 and the pages to which\nthey belong can be released at \u0027JBD: commit phase 7\u0027.\n\nTherefore, by applying the same code into \u0027JBD: commit phase 2\u0027 (where the\ndata buffers are done with), journal_commit_transaction() can also release\nthe data buffers marked \u0027BH_Freed\u0027 and the pages to which they belong.\n\nAs a result, all the buffers marked \u0027BH_Freed\u0027 can be released, and also\nall the pages to which these buffers belong can be released at\njournal_commit_transaction(). So, the page which cannot be estimated is\nlost.\n\n\u003c\u003cExcerpt of code at \u0027JBD: commit phase 7\u0027\u003e\u003e\n \u003e spin_lock(\u0026journal-\u003ej_list_lock);\n \u003e while (commit_transaction-\u003et_forget) {\n \u003e transaction_t *cp_transaction;\n \u003e struct buffer_head *bh;\n \u003e\n \u003e jh \u003d commit_transaction-\u003et_forget;\n \u003e...\n \u003e if (buffer_freed(bh)) {\n \u003e ^^^^^^^^^^^^^^^^^^^^^^^^\n \u003e clear_buffer_freed(bh);\n \u003e ^^^^^^^^^^^^^^^^^^^^^^^^\n \u003e clear_buffer_jbddirty(bh);\n \u003e }\n \u003e\n \u003e if (buffer_jbddirty(bh)) {\n \u003e JBUFFER_TRACE(jh, \"add to new checkpointing trans\");\n \u003e __journal_insert_checkpoint(jh, commit_transaction);\n \u003e JBUFFER_TRACE(jh, \"refile for checkpoint writeback\");\n \u003e __journal_refile_buffer(jh);\n \u003e jbd_unlock_bh_state(bh);\n \u003e } else {\n \u003e J_ASSERT_BH(bh, !buffer_dirty(bh));\n \u003e ...\n \u003e JBUFFER_TRACE(jh, \"refile or unfile freed buffer\");\n \u003e __journal_refile_buffer(jh);\n \u003e if (!jh-\u003eb_transaction) {\n \u003e jbd_unlock_bh_state(bh);\n \u003e /* needs a brelse */\n \u003e journal_remove_journal_head(bh);\n \u003e release_buffer_page(bh);\n \u003e ^^^^^^^^^^^^^^^^^^^^^^^^\n \u003e } else\n \u003e }\n****************************************************************\n* Apply the code of \"^^^^^^\" lines into \u0027JBD: commit phase 2\u0027 *\n****************************************************************\n\nAt journal_commit_transaction() code, there is one extra message in the\nseries of jbd debug messages. (\"JBD: commit phase 2\") This patch fixes\nit, too.\n\nSigned-off-by: Toshiyuki Okajima \u003ctoshi.okajima@jp.fujitsu.com\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: \u003clinux-ext4@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": "a10320e8f7c4dcfa050aac566092f29b40458d5a", "tree": "5ec4dbd114fb5700ba8f0edeea80eea75227d2bc", "parents": [ "3ccc3167b0e5d46ab3bf03e22fbdb7616ce038cd" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:46:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: unexport journal_update_superblock\n\nRemove the unused EXPORT_SYMBOL(journal_update_superblock).\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: \u003clinux-ext4@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": "3ccc3167b0e5d46ab3bf03e22fbdb7616ce038cd", "tree": "2dcd2ebb5ffa7271541d23e721101fca57a0eb33", "parents": [ "95450f5a7e53d5752ce1a0d0b8282e10fe745ae0" ], "author": { "name": "Duane Griffin", "email": "duaneg@dghda.com", "time": "Fri Jul 25 01:46:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: handle deleting corrupted indirect blocks\n\nWhile freeing indirect blocks we attach a journal head to the parent\nbuffer head, free the blocks, then journal the parent. If the indirect\nblock list is corrupted and points to the parent the journal head will be\ndetached when the block is cleared, causing an OOPS.\n\nCheck for that explicitly and handle it gracefully.\n\nThis patch fixes the third case (image hdb.20000057.nullderef.gz)\nreported in http://bugzilla.kernel.org/show_bug.cgi?id\u003d10882.\n\nImmediately above the change, in the ext3_free_data function, we call\next3_clear_blocks to clear the indirect blocks in this parent block. If\none of those blocks happens to actually be the parent block it will clear\nb_private / BH_JBD.\n\nI did the check at the end rather than earlier as it seemed more elegant.\nI don\u0027t think there should be much practical difference, although it is\npossible the FS may not be quite so badly corrupted if we did it the other\nway (and didn\u0027t clear the block at all). To be honest, I\u0027m not convinced\nthere aren\u0027t other similar failure modes lurking in this code, although I\ncouldn\u0027t find any with a quick review.\n\n[akpm@linux-foundation.org: fix printk warning]\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@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": "95450f5a7e53d5752ce1a0d0b8282e10fe745ae0", "tree": "acd55d917280641fd3487b73e67298caeac9ee80", "parents": [ "ae76dd9a6b5bbe5315fb7028e03f68f75b8538f3" ], "author": { "name": "Hidehiro Kawai", "email": "hidehiro.kawai.ez@hitachi.com", "time": "Fri Jul 25 01:46:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: don\u0027t read inode block if the buffer has a write error\n\nA transient I/O error can corrupt inode data. Here is the scenario:\n\n(1) update inode_A at the block_B\n(2) pdflush writes out new inode_A to the filesystem, but it results\n in write I/O error, at this point, BH_Uptodate flag of the buffer\n for block_B is cleared and BH_Write_EIO is set\n(3) create new inode_C which located at block_B, and\n __ext3_get_inode_loc() tries to read on-disk block_B because the\n buffer is not uptodate\n(4) if it can read on-disk block_B successfully, inode_A is\n overwritten by old data\n\nThis patch makes __ext3_get_inode_loc() not read the inode block if the\nbuffer has BH_Write_EIO flag. In this case, the buffer should have the\nlatest information, so setting the uptodate flag to the buffer (this\navoids WARN_ON_ONCE() in mark_buffer_dirty().)\n\nAccording to this change, we would need to test BH_Write_EIO flag for the\nerror checking. Currently nobody checks write I/O errors on metadata\nbuffers, but it will be done in other patches I\u0027m working on.\n\nSigned-off-by: Hidehiro Kawai \u003chidehiro.kawai.ez@hitachi.com\u003e\nCc: sugita \u003cyumiko.sugita.yf@hitachi.com\u003e\nCc: Satoshi OSHIMA \u003csatoshi.oshima.fk@hitachi.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Jan Kara \u003cjack@ucw.cz\u003e\nCc: \u003clinux-ext4@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": "ae76dd9a6b5bbe5315fb7028e03f68f75b8538f3", "tree": "3b877057e84fda45782dd25a3c8be91173324922", "parents": [ "ef1afd39519b74fbe1f63c9ab5a14490effec0e3" ], "author": { "name": "Duane Griffin", "email": "duaneg@dghda.com", "time": "Fri Jul 25 01:46:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: handle corrupted orphan list at mount\n\nIf the orphan node list includes valid, untruncatable nodes with nlink \u003e 0\nthe ext3_orphan_cleanup loop which attempts to delete them will not do so,\ncausing it to loop forever. Fix by checking for such nodes in the\next3_orphan_get function.\n\nThis patch fixes the second case (image hdb.20000009.softlockup.gz)\nreported in http://bugzilla.kernel.org/show_bug.cgi?id\u003d10882.\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: printk warning fix]\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@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": "ef1afd39519b74fbe1f63c9ab5a14490effec0e3", "tree": "161247cae3a51ee42dc10d95db79705871dc0eb7", "parents": [ "3f31fddfa26b7594b44ff2b34f9a04ba409e0f91" ], "author": { "name": "Shen Feng", "email": "shen@cn.fujitsu.com", "time": "Fri Jul 25 01:46:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: remove double definitions of xattr macros\n\nremove the definitions of macros:\nXATTR_TRUSTED_PREFIX\nXATTR_USER_PREFIX\nsince they are defined in linux/xattr.h\n\nSigned-off-by: Shen Feng \u003cshen@cn.fujitsu.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@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": "3f31fddfa26b7594b44ff2b34f9a04ba409e0f91", "tree": "88994baf22f65dc4da0bef17ce61eda09c59db2a", "parents": [ "9ebfbe9f926553eabc21b4400918d1216b27ed0c" ], "author": { "name": "Mingming Cao", "email": "cmm@us.ibm.com", "time": "Fri Jul 25 01:46:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: fix race between free buffer and commit transaction\n\njournal_try_to_free_buffers() could race with jbd commit transaction when\nthe later is holding the buffer reference while waiting for the data\nbuffer to flush to disk. If the caller of journal_try_to_free_buffers()\nrequest tries hard to release the buffers, it will treat the failure as\nerror and return back to the caller. We have seen the directo IO failed\ndue to this race. Some of the caller of releasepage() also expecting the\nbuffer to be dropped when passed with GFP_KERNEL mask to the\nreleasepage()-\u003ejournal_try_to_free_buffers().\n\nWith this patch, if the caller is passing the __GFP_WAIT and __GFP_FS to\nindicating this call could wait, in case of try_to_free_buffers() failed,\nlet\u0027s waiting for journal_commit_transaction() to finish commit the\ncurrent committing transaction, then try to free those buffers again.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Mingming Cao \u003ccmm@us.ibm.com\u003e\nReviewed-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9ebfbe9f926553eabc21b4400918d1216b27ed0c", "tree": "fb49beb7726579f0d798cf4d72aab646f52e2e1c", "parents": [ "1984bb763c2e50d0ebfb0cf56d1b319bd7afe63a" ], "author": { "name": "Shen Feng", "email": "shen@cn.fujitsu.com", "time": "Fri Jul 25 01:46:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: improve some code in rb tree part of dir.c\n\n- remove unnecessary code in free_rb_tree_fname\n - rename free_rb_tree_fname to ext3_htree_create_dir_info\n since it and ext3_htree_free_dir_info are a pair\n - replace kmalloc with kzalloc in ext3_htree_free_dir_info\n\nSigned-off-by: Shen Feng \u003cshen@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1984bb763c2e50d0ebfb0cf56d1b319bd7afe63a", "tree": "dde3d0c06ee054d2d4439e6ac16da831f83a72a7", "parents": [ "f4d79ca2fa211cffc07306eeed7013448e77d7ec" ], "author": { "name": "Duane Griffin", "email": "duaneg@dghda.com", "time": "Fri Jul 25 01:46:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: tidy up revoke cache initialisation and destruction\n\nMake revocation cache destruction safe to call if initialisation fails\npartially or entirely. This allows it to be used to cleanup in the case\nof initialisation failure, simplifying that code slightly.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@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": "f4d79ca2fa211cffc07306eeed7013448e77d7ec", "tree": "dee0ba9ed8102f5d0bcadc1e93ca7affe2414e8f", "parents": [ "3850f7a521dc17659ef6758a219f083418788490" ], "author": { "name": "Duane Griffin", "email": "duaneg@dghda.com", "time": "Fri Jul 25 01:46:20 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: eliminate duplicated code in revocation table init/destroy functions\n\nThe revocation table initialisation/destruction code is repeated for each\nof the two revocation tables stored in the journal. Refactoring the\nduplicated code into functions is tidier, simplifies the logic in\ninitialisation in particular, and slightly reduces the code size.\n\nThere should not be any functional change.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\u003e\nCc: \u003clinux-ext4@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": "3850f7a521dc17659ef6758a219f083418788490", "tree": "d576d48a13f4c31aef846dd7f178f3159c38e138", "parents": [ "d06bf1d252fe16f5f0d13e04da7a9913420aa1cf" ], "author": { "name": "Duane Griffin", "email": "duaneg@dghda.com", "time": "Fri Jul 25 01:46:19 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "jbd: replace potentially false assertion with if block\n\nIf an error occurs during jbd cache initialisation it is possible for the\njournal_head_cache to be NULL when journal_destroy_journal_head_cache is\ncalled. Replace the J_ASSERT with an if block to handle the situation\ncorrectly.\n\nNote that even with this fix things will break badly if jbd is statically\ncompiled in and cache initialisation fails.\n\nSigned-off-by: Duane Griffin \u003cduaneg@dghda.com\nCc: \u003clinux-ext4@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": "d06bf1d252fe16f5f0d13e04da7a9913420aa1cf", "tree": "2b552d620b0a114d3085ddee3f9a1929040d8bf0", "parents": [ "99aeaf639f61ab6be1967e5f92e2e28dafad8383" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:18 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:32 2008 -0700" }, "message": "ext3: correct mount option parsing to detect when quota options can be changed\n\nWe should not allow user to change quota mount options when quota is just\nsuspended. I would make mount options and internal quota state inconsistent.\nAlso we should not allow user to change quota format when quota is turned on.\nOn the other hand we can just silently ignore when some option is set to the\nvalue it already has (mount does this on remount).\n\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "99aeaf639f61ab6be1967e5f92e2e28dafad8383", "tree": "0110d1098d20717424a44ea8bf1e8227708d1557", "parents": [ "9cfe7b9010aa66da5f3b2bc33d9e30a4d53bd274" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:17 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:31 2008 -0700" }, "message": "ext3: fix typos in messages and comments (journalled -\u003e journaled)\n\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9cfe7b9010aa66da5f3b2bc33d9e30a4d53bd274", "tree": "7cbafe89d4101f3bb0ca2132154e414dec4aecf7", "parents": [ "50c33a84db4aa5082e3af8d873b22344ae2ebea8" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Fri Jul 25 01:46:16 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:31 2008 -0700" }, "message": "ext3: fix synchronization of quota files in journal\u003ddata mode\n\nIn journal\u003ddata mode, it is not enough to do write_inode_now as done in\nvfs_quota_on() to write all data to their final location (which is needed for\nquota_read to work correctly). Calling journal_flush() does its job.\n\nReported-by: Nick \u003cgentuu@gmail.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "50c33a84db4aa5082e3af8d873b22344ae2ebea8", "tree": "93e40d8381f5109208947c3f7099cc0d8a80afa6", "parents": [ "f905f06fca5d3949eca12f5a43e251a404b3470a" ], "author": { "name": "Samuel Thibault", "email": "samuel.thibault@ens-lyon.org", "time": "Fri Jul 25 01:46:16 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:31 2008 -0700" }, "message": "ext2: fix typo in Hurd part of include/linux/ext2_fs.h\n\nFix typo in Hurd part of include/linux/ext2_fs.h\n\nThe \u0027;\u0027 here is redundant or can even pose problem. This is actually not\nused by the Linux kernel, but it is exposed in GNU/Hurd.\n\nSigned-off-by: Samuel Thibault \u003csamuel.thibault@ens-lyon.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f905f06fca5d3949eca12f5a43e251a404b3470a", "tree": "303e8789f8e0dc5f82a712298a9086f242deb3d3", "parents": [ "fb523f32275344282f20ef3352cbf03e599241e6" ], "author": { "name": "Shen Feng", "email": "shen@cn.fujitsu.com", "time": "Fri Jul 25 01:46:15 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:31 2008 -0700" }, "message": "ext2: remove double definitions of xattr macros\n\nremove the definitions of macros:\nXATTR_TRUSTED_PREFIX\nXATTR_USER_PREFIX\nsince they are defined in linux/xattr.h\n\nSigned-off-by: Shen Feng \u003cshen@cn.fujitsu.com\u003e\nSigned-off-by: Mingming Cao \u003ccmm@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": "fb523f32275344282f20ef3352cbf03e599241e6", "tree": "a21bc5f9e196d0ec786582e1a96b3dc5aafcf6b0", "parents": [ "bbcd6d543de335bf81e96477f46a60a8bf51039c" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:46:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "minix: remove !NO_TRUNCATE code\n\nThis patch removes the !NO_TRUNCATE code that anyway required a manual\nediting of the code for being used.\n\nSigned-off-by: Adrian Bunk \u003cbunk@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": "bbcd6d543de335bf81e96477f46a60a8bf51039c", "tree": "86d592bfa308407ce357184ff9494e7d36939c6b", "parents": [ "7444a72effa632fcd8edc566f880d96fe213c73b" ], "author": { "name": "Eric Miao", "email": "eric.miao@marvell.com", "time": "Fri Jul 25 01:46:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpio: max732x driver\n\nThis adds a driver supporting a family of I2C port expanders from Maxim,\nwhich includes the MAX7319 and MAX7320-7327 chips.\n\n[dbrownell@users.sourceforge.net: minor fixes]\nSigned-off-by: Jack Ren \u003cjack.ren@marvell.com\u003e\nSigned-off-by: Eric Miao \u003ceric.miao@marvell.com\u003e\nAcked-by: Jean Delvare \u003ckhali@linux-fr.org\u003e\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7444a72effa632fcd8edc566f880d96fe213c73b", "tree": "89d3e70c22751a6b00091df2b4dce7202eb3b1f5", "parents": [ "ff1d5c2f0268f4e32103536e2e65480b5b7b6530" ], "author": { "name": "Michael Buesch", "email": "mb@bu3sch.de", "time": "Fri Jul 25 01:46:11 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpiolib: allow user-selection\n\nThis patch adds functionality to the gpio-lib subsystem to make it\npossible to enable the gpio-lib code even if the architecture code didn\u0027t\nrequest to get it built in.\n\nThe archtitecture code does still need to implement the gpiolib accessor\nfunctions in its asm/gpio.h file. This patch adds the implementations for\nx86 and PPC.\n\nWith these changes it is possible to run generic GPIO expansion cards on\nevery architecture that implements the trivial wrapper functions. Support\nfor more architectures can easily be added.\n\nSigned-off-by: Michael Buesch \u003cmb@bu3sch.de\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nCc: Jesper Nilsson \u003cjesper.nilsson@axis.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Samuel Ortiz \u003csameo@openedhand.com\u003e\nCc: Kumar Gala \u003cgalak@gate.crashing.org\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nCc: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ff1d5c2f0268f4e32103536e2e65480b5b7b6530", "tree": "3f5e538b85c35eb73db07fb7a57dc8edc46968a4", "parents": [ "8f1cc3b10e6ee0c5c7c8ed27f8771c4f252b4862" ], "author": { "name": "Michael Buesch", "email": "mb@bu3sch.de", "time": "Fri Jul 25 01:46:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpio: add bt8xxgpio driver\n\nThis adds the bt8xxgpio driver. The purpose of the bt8xxgpio driver is to\nexport all of the 24 GPIO pins available on Brooktree 8xx chips to the\nkernel GPIO infrastructure.\n\nThis makes it possible to use a physically modified BT8xx card as\ncheap digital GPIO card.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Michael Buesch \u003cmb@bu3sch.de\u003e\nCc: David Brownell \u003cdavid-b@pacbell.net\u003e\nCc: Stephen Rothwell \u003csfr@canb.auug.org.au\u003e\nCc: Mauro Carvalho Chehab \u003cmchehab@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8f1cc3b10e6ee0c5c7c8ed27f8771c4f252b4862", "tree": "a64611af44cf46aea2e2b145fad85042bb647a3d", "parents": [ "d8f388d8dc8d4f36539dd37c1fff62cc404ea0fc" ], "author": { "name": "David Brownell", "email": "david-b@pacbell.net", "time": "Fri Jul 25 01:46:09 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpio: mcp23s08 handles multiple chips per chipselect\n\nTeach the mcp23s08 driver about a curious feature of these chips: up to\nfour of them can share the same chipselect, with the SPI signals wired in\nparallel, by matching two bits in the first protocol byte against two\naddress lines on the chip.\n\nThis is handled by three software changes:\n\n * Platform data now holds an array of per-chip structs, not\n just one chip\u0027s address and pullup configuration.\n\n * Probe() and remove() now use another level of structure,\n wrapping an instance of the original structure for each\n mcp23s08 chip sharing that chipselect.\n\n * The HAEN bit is set, so that the hardware address bits can no\n longer be ignored (boot firmware may not have enabled them).\n\nThe \"one struct per chip\" preserves the guts of the current code,\nbut platform_data will need minor changes.\n\n OLD:\n\t/* incorrect \"slave\" ID may not have mattered */\n\t.slave \u003d 3,\n\t.pullups \u003d BIT(3) | BIT(1) | BIT(0),\n\n NEW:\n\t/* slave address _must_ match chip\u0027s wiring */\n\t.chip[3] \u003d {\n\t\t.is_present \u003d true,\n\t\t.pullups \u003d BIT(3) | BIT(1) | BIT(0),\n\t},\n\nThere\u0027s no change in how things _behave_ for spi_device nodes with a\nsingle mcp23s08 chip. New multi-chip configurations assign GPIOs in\nsequence, without holes. The spi_device just resembles a bigger\ncontroller, but internally it has multiple gpio_chip instances.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d8f388d8dc8d4f36539dd37c1fff62cc404ea0fc", "tree": "df8603775c889f29f8a03c77b9f7913bfd90d296", "parents": [ "8b6dd986823a8d92ed9f54baa5cef8604d9d9d44" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Fri Jul 25 01:46:07 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "gpio: sysfs interface\n\nThis adds a simple sysfs interface for GPIOs.\n\n /sys/class/gpio\n \t/export ... asks the kernel to export a GPIO to userspace\n \t/unexport ... to return a GPIO to the kernel\n /gpioN ... for each exported GPIO #N\n\t /value ... always readable, writes fail for input GPIOs\n\t /direction ... r/w as: in, out (default low); write high, low\n\t/gpiochipN ... for each gpiochip; #N is its first GPIO\n\t /base ... (r/o) same as N\n\t /label ... (r/o) descriptive, not necessarily unique\n\t /ngpio ... (r/o) number of GPIOs; numbered N .. N+(ngpio - 1)\n\nGPIOs claimed by kernel code may be exported by its owner using a new\ngpio_export() call, which should be most useful for driver debugging.\nSuch exports may optionally be done without a \"direction\" attribute.\n\nUserspace may ask to take over a GPIO by writing to a sysfs control file,\nhelping to cope with incomplete board support or other \"one-off\"\nrequirements that don\u0027t merit full kernel support:\n\n echo 23 \u003e /sys/class/gpio/export\n\t... will gpio_request(23, \"sysfs\") and gpio_export(23);\n\tuse /sys/class/gpio/gpio-23/direction to (re)configure it,\n\twhen that GPIO can be used as both input and output.\n echo 23 \u003e /sys/class/gpio/unexport\n\t... will gpio_free(23), when it was exported as above\n\nThe extra D-space footprint is a few hundred bytes, except for the sysfs\nresources associated with each exported GPIO. The additional I-space\nfootprint is about two thirds of the current size of gpiolib (!). Since\nno /dev node creation is involved, no \"udev\" support is needed.\n\nRelated changes:\n\n * This adds a device pointer to \"struct gpio_chip\". When GPIO\n providers initialize that, sysfs gpio class devices become children of\n that device instead of being \"virtual\" devices.\n\n * The (few) gpio_chip providers which have such a device node have\n been updated.\n\n * Some gpio_chip drivers also needed to update their module \"owner\"\n field ... for which missing kerneldoc was added.\n\n * Some gpio_chips don\u0027t support input GPIOs. Those GPIOs are now\n flagged appropriately when the chip is registered.\n\nBased on previous patches, and discussion both on and off LKML.\n\nA Documentation/ABI/testing/sysfs-gpio update is ready to submit once this\nmerges to mainline.\n\n[akpm@linux-foundation.org: a few maintenance build fixes]\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Guennadi Liakhovetski \u003cg.liakhovetski@pengutronix.de\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8b6dd986823a8d92ed9f54baa5cef8604d9d9d44", "tree": "42aa64ad046b200c4a04491eb3c72ac2f7ffde0e", "parents": [ "ef53d9c5e4da147ecaa43c44c5e5945eb83970a2" ], "author": { "name": "Abhishek Sagar", "email": "sagar.abhishek@gmail.com", "time": "Fri Jul 25 01:46:05 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "kprobes: remove redundant config check\n\nI noticed that there\u0027s a CONFIG_KPROBES check inside kernel/kprobes.c,\nwhich is redundant.\n\nSigned-off-by: Abhishek Sagar \u003csagar.abhishek@gmail.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef53d9c5e4da147ecaa43c44c5e5945eb83970a2", "tree": "3b596445e5d0613fda4b33a4ae96e0e3fffdcf1e", "parents": [ "53a9600c634e3bfd6230e0597aca159bf4d4d010" ], "author": { "name": "Srinivasa D S", "email": "srinivasa@in.ibm.com", "time": "Fri Jul 25 01:46:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "kprobes: improve kretprobe scalability with hashed locking\n\nCurrently list of kretprobe instances are stored in kretprobe object (as\nused_instances,free_instances) and in kretprobe hash table. We have one\nglobal kretprobe lock to serialise the access to these lists. This causes\nonly one kretprobe handler to execute at a time. Hence affects system\nperformance, particularly on SMP systems and when return probe is set on\nlot of functions (like on all systemcalls).\n\nSolution proposed here gives fine-grain locks that performs better on SMP\nsystem compared to present kretprobe implementation.\n\nSolution:\n\n 1) Instead of having one global lock to protect kretprobe instances\n present in kretprobe object and kretprobe hash table. We will have\n two locks, one lock for protecting kretprobe hash table and another\n lock for kretporbe object.\n\n 2) We hold lock present in kretprobe object while we modify kretprobe\n instance in kretprobe object and we hold per-hash-list lock while\n modifying kretprobe instances present in that hash list. To prevent\n deadlock, we never grab a per-hash-list lock while holding a kretprobe\n lock.\n\n 3) We can remove used_instances from struct kretprobe, as we can\n track used instances of kretprobe instances using kretprobe hash\n table.\n\nTime duration for kernel compilation (\"make -j 8\") on a 8-way ppc64 system\nwith return probes set on all systemcalls looks like this.\n\ncacheline non-cacheline Un-patched kernel\naligned patch \t aligned patch\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nreal 9m46.784s 9m54.412s 10m2.450s\nuser 40m5.715s 40m7.142s 40m4.273s\nsys 2m57.754s 2m58.583s 3m17.430s\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nTime duration for kernel compilation (\"make -j 8) on the same system, when\nkernel is not probed.\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nreal 9m26.389s\nuser 40m8.775s\nsys 2m7.283s\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nSigned-off-by: Srinivasa DS \u003csrinivasa@in.ibm.com\u003e\nSigned-off-by: Jim Keniston \u003cjkenisto@us.ibm.com\u003e\nAcked-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "53a9600c634e3bfd6230e0597aca159bf4d4d010" }