)]}' { "log": [ { "commit": "fabf318e5e4bda0aca2b0d617b191884fda62703", "tree": "651b2ee4fb8f393d2fe93f133a5ec6129cb7a8e8", "parents": [ "6d558c3ac9b6508d26fd5cadccce51fc9d726b1c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Jan 21 21:04:57 2010 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Jan 21 23:25:31 2010 +0100" }, "message": "sched: Fix fork vs hotplug vs cpuset namespaces\n\nThere are a number of issues:\n\n1) TASK_WAKING vs cgroup_clone (cpusets)\n\ncopy_process():\n\n sched_fork()\n child-\u003estate \u003d TASK_WAKING; /* waiting for wake_up_new_task() */\n if (current-\u003ensproxy !\u003d p-\u003ensproxy)\n ns_cgroup_clone()\n cgroup_clone()\n mutex_lock(inode-\u003ei_mutex)\n mutex_lock(cgroup_mutex)\n cgroup_attach_task()\n\t ss-\u003ecan_attach()\n ss-\u003eattach() [ -\u003e cpuset_attach() ]\n cpuset_attach_task()\n set_cpus_allowed_ptr();\n while (child-\u003estate \u003d\u003d TASK_WAKING)\n cpu_relax();\nwill deadlock the system.\n\n\n2) cgroup_clone (cpusets) vs copy_process\n\nSo even if the above would work we still have:\n\ncopy_process():\n\n if (current-\u003ensproxy !\u003d p-\u003ensproxy)\n ns_cgroup_clone()\n cgroup_clone()\n mutex_lock(inode-\u003ei_mutex)\n mutex_lock(cgroup_mutex)\n cgroup_attach_task()\n\t ss-\u003ecan_attach()\n ss-\u003eattach() [ -\u003e cpuset_attach() ]\n cpuset_attach_task()\n set_cpus_allowed_ptr();\n ...\n\n p-\u003ecpus_allowed \u003d current-\u003ecpus_allowed\n\nover-writing the modified cpus_allowed.\n\n\n3) fork() vs hotplug\n\n if we unplug the child\u0027s cpu after the sanity check when the child\n gets attached to the task_list but before wake_up_new_task() shit\n will meet with fan.\n\nSolve all these issues by moving fork cpu selection into\nwake_up_new_task().\n\nReported-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nTested-by: Serge E. Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1264106190.4283.1314.camel@laptop\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "6d558c3ac9b6508d26fd5cadccce51fc9d726b1c", "tree": "dbad2aa9c5874ea7ee5fff1f9f32b0be208c3df6", "parents": [ "50b926e439620c469565e8be0f28be78f5fca1ce" ], "author": { "name": "Yong Zhang", "email": "yong.zhang0@gmail.com", "time": "Mon Jan 11 14:21:25 2010 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jan 21 13:39:04 2010 +0100" }, "message": "sched: Reassign prev and switch_count when reacquire_kernel_lock() fail\n\nAssume A-\u003eB schedule is processing, if B have acquired BKL before and it\nneed reschedule this time. Then on B\u0027s context, it will go to\nneed_resched_nonpreemptible for reschedule. But at this time, prev and\nswitch_count are related to A. It\u0027s wrong and will lead to incorrect\nscheduler statistics.\n\nSigned-off-by: Yong Zhang \u003cyong.zhang0@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c2674af741001102238w7b0ddcadref00d345e2181d11@mail.gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0c69774e6ce94364cfaa8bdeb18061edc414bc5a", "tree": "b83fdb55af2f9b9dddcab4a273739ebe1c810594", "parents": [ "f7b84a6ba7eaeba4e1df8feddca1473a7db369a5" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Tue Dec 22 15:43:19 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 23 10:04:10 2009 +0100" }, "message": "sched: Revert 738d2be, simplify set_task_cpu()\n\nEffectively reverts 738d2be4301007f054541c5c4bf7fb6a361c9b3a.\n\nAs demonstrated by Eric, we really need to call __set_task_cpu()\nearly in the fork() path to properly initialize the various task\nstate -- specifically the cgroup state through set_task_rq().\n\n[ we could probably fix this by explicitly calling\n __set_task_cpu() from sched_fork(), but lets try that for the\n next cycle and simply revert to the old behaviour for now. ]\n\nReported-by: Eric Paris \u003ceparis@redhat.com\u003e\nTested-by: Eric Paris \u003ceparis@redhat.com\u003e,\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: efault@gmx.de\nLKML-Reference: \u003c1261492999.4937.36.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "70f1120527797adb31c68bdc6f1b45e182c342c7", "tree": "d2b5f85f3c0f7c9a162828362d3e5f587df56e20", "parents": [ "3df0fc5b2e9d8092dcaeb5ae0b6753d85c851d66" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Sun Dec 20 17:36:27 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 20 23:31:23 2009 +0100" }, "message": "sched: Fix hotplug hang\n\nThe hot-unplug kstopmachine usage does a wakeup after\ndeactivating the cpu, hence we cannot use cpu_active()\nhere but must rely on the good olde online.\n\nReported-by: Sachin Sant \u003csachinp@in.ibm.com\u003e\nReported-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nLKML-Reference: \u003c1261326987.4314.24.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3df0fc5b2e9d8092dcaeb5ae0b6753d85c851d66", "tree": "078c78047dd9eca67174955a1d1b622da3fe8da8", "parents": [ "dd59f6c76b265ed2ff18b497d6105a9511b1feb1" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Sun Dec 20 14:23:57 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 20 19:05:02 2009 +0100" }, "message": "sched: Restore printk sanity\n\nRevert the braindead pr_* crap. (Commit 663997d \"sched: Use\npr_fmt() and pr_\u003clevel\u003e()\")\n\nIt\u0027s dumb and causes stupid \"sched: \" strings all over the place.\n\nSigned-off-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Joe Perches \u003cjoe@perches.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nLKML-Reference: \u003c1261315437.4314.6.camel@laptop\u003e\n[ i dont mind the pr_*() patterns that much - but Peter dislikes them with a vengence. ]\n[ - v2: remove spurious diffstat from changelog :-/ ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "077614ee1e93245a3b9a4e1213659405dbeb0ba6", "tree": "246e441967d7973d9e3addc6bade207db86d2575", "parents": [ "e1781538cf5c870ab696e9b8f0a5c498d3900f2f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Dec 17 13:16:31 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 17 13:22:46 2009 +0100" }, "message": "sched: Fix broken assertion\n\nThere\u0027s a preemption race in the set_task_cpu() debug check in\nthat when we get preempted after setting task-\u003estate we\u0027d still\nbe on the rq proper, but fail the test.\n\nCheck for preempted tasks, since those are always on the RQ.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20091217121830.137155561@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "234da7bcdc7aaa935846534c3b726dbc79a9cdd5", "tree": "a391afd465d6493a9f1bb274c225bab4d303aad0", "parents": [ "416eb39556a03d1c7e52b0791e9052ccd71db241" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Dec 16 20:21:05 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 17 09:46:44 2009 +0100" }, "message": "sched: Teach might_sleep() about preemptible RCU\n\nIn practice, it is harmless to voluntarily sleep in a\nrcu_read_lock() section if we are running under preempt rcu, but\nit is illegal if we build a kernel running non-preemptable rcu.\n\nCurrently, might_sleep() doesn\u0027t notice sleepable operations\nunder rcu_read_lock() sections if we are running under\npreemptable rcu because preempt_count() is left untouched after\nrcu_read_lock() in this case. But we want developers who test\ntheir changes under such config to notice the \"sleeping while\natomic\" issues.\n\nSo we add rcu_read_lock_nesting to prempt_count() in\nmight_sleep() checks.\n\n[ v2: Handle rcu-tiny ]\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nReviewed-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c1260991265-8451-1-git-send-regression-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "416eb39556a03d1c7e52b0791e9052ccd71db241", "tree": "66390e3d4f53721bc643d24d96d5da339f4c34f8", "parents": [ "738d2be4301007f054541c5c4bf7fb6a361c9b3a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 17 06:05:49 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 17 06:05:49 2009 +0100" }, "message": "sched: Make warning less noisy\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170517.807938893@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "738d2be4301007f054541c5c4bf7fb6a361c9b3a", "tree": "6d37c04fa3b35d5fe820ab2df1088ba596fefe38", "parents": [ "88ec22d3edb72b261f8628226cd543589a6d5e1b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:42 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:59 2009 +0100" }, "message": "sched: Simplify set_task_cpu()\n\nRearrange code a bit now that its a simpler function.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170518.269101883@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "88ec22d3edb72b261f8628226cd543589a6d5e1b", "tree": "ca547c82ab6adce0b9e29afb6ceddf50cd417d44", "parents": [ "efbbd05a595343a413964ad85a2ad359b7b7efbd" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:41 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:58 2009 +0100" }, "message": "sched: Remove the cfs_rq dependency from set_task_cpu()\n\nIn order to remove the cfs_rq dependency from set_task_cpu() we\nneed to ensure the task is cfs_rq invariant for all callsites.\n\nThe simple approach is to substract cfs_rq-\u003emin_vruntime from\nse-\u003evruntime on dequeue, and add cfs_rq-\u003emin_vruntime on\nenqueue.\n\nHowever, this has the downside of breaking FAIR_SLEEPERS since\nwe loose the old vruntime as we only maintain the relative\nposition.\n\nTo solve this, we observe that we only migrate runnable tasks,\nwe do this using deactivate_task(.sleep\u003d0) and\nactivate_task(.wakeup\u003d0), therefore we can restrain the\nmin_vruntime invariance to that state.\n\nThe only other case is wakeup balancing, since we want to\nmaintain the old vruntime we cannot make it relative on dequeue,\nbut since we don\u0027t migrate inactive tasks, we can do so right\nbefore we activate it again.\n\nThis is where we need the new pre-wakeup hook, we need to call\nthis while still holding the old rq-\u003elock. We could fold it into\n-\u003eselect_task_rq(), but since that has multiple callsites and\nwould obfuscate the locking requirements, that seems like a\nfudge.\n\nThis leaves the fork() case, simply make sure that -\u003etask_fork()\nleaves the -\u003evruntime in a relative state.\n\nThis covers all cases where set_task_cpu() gets called, and\nensures it sees a relative vruntime.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170518.191697025@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "efbbd05a595343a413964ad85a2ad359b7b7efbd", "tree": "c1bf0d86134187e127a00067b50b0684c2988860", "parents": [ "881232b70b195768a71cd74ff4b4e8ab9502997b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:40 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:58 2009 +0100" }, "message": "sched: Add pre and post wakeup hooks\n\nAs will be apparent in the next patch, we need a pre wakeup hook\nfor sched_fair task migration, hence rename the post wakeup hook\nand one pre wakeup.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170518.114746117@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "881232b70b195768a71cd74ff4b4e8ab9502997b", "tree": "aeafe0a28a7163af445e4f603ab1075c3608c375", "parents": [ "5da9a0fb673a0ea0a093862f95f6b89b3390c31e" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:57 2009 +0100" }, "message": "sched: Move kthread_bind() back to kthread.c\n\nSince kthread_bind() lost its dependencies on sched.c, move it\nback where it came from.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170518.039524041@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5da9a0fb673a0ea0a093862f95f6b89b3390c31e", "tree": "fa4465d5ce050cdc42e63a2518ce2e1b58fa9c30", "parents": [ "3802290628348674985d14914f9bfee7b9084548" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:38 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:57 2009 +0100" }, "message": "sched: Fix select_task_rq() vs hotplug issues\n\nSince select_task_rq() is now responsible for guaranteeing\n-\u003ecpus_allowed and cpu_active_mask, we need to verify this.\n\nselect_task_rq_rt() can blindly return\nsmp_processor_id()/task_cpu() without checking the valid masks,\nselect_task_rq_fair() can do the same in the rare case that all\nSD_flags are disabled.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170517.961475466@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3802290628348674985d14914f9bfee7b9084548", "tree": "b6b513fa5651f570013f3eff86e843a9d52d1dcb", "parents": [ "e2912009fb7b715728311b0d8fe327a1432b3f79" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:37 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:56 2009 +0100" }, "message": "sched: Fix sched_exec() balancing\n\nSince we access -\u003ecpus_allowed without holding rq-\u003elock we need\na retry loop to validate the result, this comes for near free\nwhen we merge sched_migrate_task() into sched_exec() since that\nalready does the needed check.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170517.884743662@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e2912009fb7b715728311b0d8fe327a1432b3f79", "tree": "9918e2f9690d85b7d7f5550d09f0ae6cc3fa4e0f", "parents": [ "06b83b5fbea273672822b6ee93e16781046553ec" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:36 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:56 2009 +0100" }, "message": "sched: Ensure set_task_cpu() is never called on blocked tasks\n\nIn order to clean up the set_task_cpu() rq dependencies we need\nto ensure it is never called on blocked tasks because such usage\ndoes not pair with consistent rq-\u003elock usage.\n\nThis puts the migration burden on ttwu().\n\nFurthermore we need to close a race against changing\n-\u003ecpus_allowed, since select_task_rq() runs with only preemption\ndisabled.\n\nFor sched_fork() this is safe because the child isn\u0027t in the\ntasklist yet, for wakeup we fix this by synchronizing\nset_cpus_allowed_ptr() against TASK_WAKING, which leaves\nsched_exec to be a problem\n\nThis also closes a hole in (6ad4c1888 sched: Fix balance vs\nhotplug race) where -\u003eselect_task_rq() doesn\u0027t validate the\nresult against the sched_domain/root_domain.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170517.807938893@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "06b83b5fbea273672822b6ee93e16781046553ec", "tree": "cd287173f5aacdf69289fe62f397a957c9f678fe", "parents": [ "e4f4288842ee12747e10c354d72be7d424c0b627" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:35 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:55 2009 +0100" }, "message": "sched: Use TASK_WAKING for fork wakups\n\nFor later convenience use TASK_WAKING for fresh tasks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c20091216170517.732561278@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e6c8fba7771563b2f3dfb96a78f36ec17e15bdf0", "tree": "232d6ea7b028d3a98ea5eaa9ceffb21aff19db35", "parents": [ "9ee349ad6d326df3633d43f54202427295999c47" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Dec 16 18:04:33 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 19:01:54 2009 +0100" }, "message": "sched: Fix task_hot() test order\n\nMake sure not to access sched_fair fields before verifying it is\nindeed a sched_fair task.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCC: stable@kernel.org\nLKML-Reference: \u003c20091216170517.577998058@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee1156c11a1121e118b0a7f2dec240f0d421b1fd", "tree": "b8771cc5a9758af9d7410fc519227c036c222130", "parents": [ "b9f8fcd55bbdb037e5332dbdb7b494f0b70861ac", "8bea8672edfca7ec5f661cafb218f1205863b343" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 18:33:49 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 16 18:33:49 2009 +0100" }, "message": "Merge branch \u0027linus\u0027 into sched/urgent\n\nConflicts:\n\tkernel/sched_idletask.c\n\nMerge reason: resolve the conflicts, pick up latest changes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1d615482547584b9a8bb6316a58fed6ce90dd9ff", "tree": "21dae4b70acb3ce0bdaeeaee1dbd970be41d26e2", "parents": [ "fe841226bd954fba4fd79f037a876053fe9c3217" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Nov 17 14:54:03 2009 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Dec 14 23:55:33 2009 +0100" }, "message": "sched: Convert pi_lock to raw_spinlock\n\nConvert locks which cannot be sleeping locks in preempt-rt to\nraw_spinlocks.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0986b11b12ad2baed338385f79fd0dec58a23fc6", "tree": "36bdf3985704f87f0c278a35e53470f6248419e2", "parents": [ "05fa785cf80c9b7c0254c3056037147aed3ea16b" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Nov 17 15:32:06 2009 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Dec 14 23:55:33 2009 +0100" }, "message": "sched: Convert rt_runtime_lock to raw_spinlock\n\nConvert locks which cannot be sleeping locks in preempt-rt to\nraw_spinlocks.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "05fa785cf80c9b7c0254c3056037147aed3ea16b", "tree": "3d5c69d449b9240dc6d1005dddf344e467de4f34", "parents": [ "a26724591edba5acc528d41f3906a972590e8f54" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Nov 17 14:28:38 2009 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Dec 14 23:55:33 2009 +0100" }, "message": "sched: Convert rq-\u003elock to raw_spinlock\n\nConvert locks which cannot be sleeping locks in preempt-rt to\nraw_spinlocks.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n\n" }, { "commit": "9828ea9d75c38fe3dce05d00566eed61c85732e6", "tree": "6cee5c8ffb07cdf45cc12d58f74a3053ffefcb5f", "parents": [ "5f6384c5fb6bfc9aac506e058974d3ba293951b3" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Dec 03 20:55:53 2009 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Dec 14 23:55:33 2009 +0100" }, "message": "locking: Further name space cleanups\n\nThe name space hierarchy for the internal lock functions is now a bit\nbackwards. raw_spin* functions map to _spin* which use __spin*, while\nwe would like to have _raw_spin* and __raw_spin*.\n\n_raw_spin* is already used by lock debugging, so rename those funtions\nto do_raw_spin* to free up the _raw_spin* name space.\n\nNo functional change.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3", "tree": "6cc8d1fd37ffa6d02481353857b92734241f4dd0", "parents": [ "e5931943d02bf751b1ec849c0d2ade23d76a8d41" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 02 20:02:59 2009 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Dec 14 23:55:32 2009 +0100" }, "message": "locking: Implement new raw_spinlock\n\nNow that the raw_spin name space is freed up, we can implement\nraw_spinlock and the related functions which are used to annotate the\nlocks which are not converted to sleeping spinlocks in preempt-rt.\n\nA side effect is that only such locks can be used with the low level\nlock fsunctions which circumvent lockdep.\n\nFor !rt spin_* functions are mapped to the raw_spin* implementations.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n\n" }, { "commit": "d0316554d3586cbea60592a41391b5def2553d6f", "tree": "5e7418f0bacbc68cec5dfd1541e03eb56870aa02", "parents": [ "fb0bbb92d42d5bd0ab224605444efdfed06d6934", "51e99be00ce2713cbb841cedc997cafa6e26c7f4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Dec 14 09:58:24 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Dec 14 09:58:24 2009 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits)\n m68k: rename global variable vmalloc_end to m68k_vmalloc_end\n percpu: add missing per_cpu_ptr_to_phys() definition for UP\n percpu: Fix kdump failure if booted with percpu_alloc\u003dpage\n percpu: make misc percpu symbols unique\n percpu: make percpu symbols in ia64 unique\n percpu: make percpu symbols in powerpc unique\n percpu: make percpu symbols in x86 unique\n percpu: make percpu symbols in xen unique\n percpu: make percpu symbols in cpufreq unique\n percpu: make percpu symbols in oprofile unique\n percpu: make percpu symbols in tracer unique\n percpu: make percpu symbols under kernel/ and mm/ unique\n percpu: remove some sparse warnings\n percpu: make alloc_percpu() handle array types\n vmalloc: fix use of non-existent percpu variable in put_cpu_var()\n this_cpu: Use this_cpu_xx in trace_functions_graph.c\n this_cpu: Use this_cpu_xx for ftrace\n this_cpu: Use this_cpu_xx in nmi handling\n this_cpu: Use this_cpu operations in RCU\n this_cpu: Use this_cpu ops for VM statistics\n ...\n\nFix up trivial (famous last words) global per-cpu naming conflicts in\n\tarch/x86/kvm/svm.c\n\tmm/slab.c\n" }, { "commit": "1a551ae715825bb2a2107a2dd68de024a1fa4e32", "tree": "03f29f6a37be1eea125994aee5d34b4daf804a20", "parents": [ "23f5d142519621b16cf2b378cf8adf4dcf01a616" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 10:15:11 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 14 17:11:35 2009 +0100" }, "message": "sched: Use rcu in sched_get_rr_param()\n\nread_lock(\u0026tasklist_lock) does not protect\nsys_sched_get_rr_param() against a concurrent update of the\npolicy or scheduler parameters as do_sched_scheduler() does not\ntake the tasklist_lock.\n\nThe access to task-\u003esched_class-\u003eget_rr_interval is protected by\ntask_rq_lock(task).\n\nUse rcu_read_lock() to protect find_task_by_vpid() and prevent\nthe task struct from going away.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20091209100706.862897167@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "23f5d142519621b16cf2b378cf8adf4dcf01a616", "tree": "c7907cb635ea1ad6cab71598d687b752c17adf37", "parents": [ "5fe85be081edf0ac92d83f9c39e0ab5c1371eb82" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 10:15:01 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 14 17:11:35 2009 +0100" }, "message": "sched: Use rcu in sched_get/set_affinity()\n\ntasklist_lock is held read locked to protect the\nfind_task_by_vpid() call and to prevent the task going away.\nsched_setaffinity acquires a task struct ref and drops tasklist\nlock right away. The access to the cpus_allowed mask is\nprotected by rq-\u003elock.\n\nrcu_read_lock() provides the same protection here.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20091209100706.789059966@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5fe85be081edf0ac92d83f9c39e0ab5c1371eb82", "tree": "6c8d313aec92310787c14b7d289f69e3e5e38711", "parents": [ "663997d417330a59a566452f52cfa04c8ffd190b" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 10:14:58 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Dec 14 17:11:34 2009 +0100" }, "message": "sched: Use rcu in sys_sched_getscheduler/sys_sched_getparam()\n\nread_lock(\u0026tasklist_lock) does not protect\nsys_sched_getscheduler and sys_sched_getparam() against a\nconcurrent update of the policy or scheduler parameters as\ndo_sched_setscheduler() does not take the tasklist_lock. The\naccessed integers can be retrieved w/o locking and are snapshots\nanyway.\n\nUsing rcu_read_lock() to protect find_task_by_vpid() and prevent\nthe task struct from going away is not changing the above\nsituation.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20091209100706.753790977@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "663997d417330a59a566452f52cfa04c8ffd190b", "tree": "d5f8a808744664c7d007751c020bcf4bd6e4f1ea", "parents": [ "7539a3b3d1f892dd97eaf094134d7de55c13befe" ], "author": { "name": "Joe Perches", "email": "joe@perches.com", "time": "Sat Dec 12 13:57:27 2009 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 13 08:13:55 2009 +0100" }, "message": "sched: Use pr_fmt() and pr_\u003clevel\u003e()\n\n- Convert printk(KERN_\u003clevel\u003e to pr_\u003clevel\u003e (not KERN_DEBUG)\n - Add #define pr_fmt(fmt) KBUILD_MODNAME \": \" fmt\n - Coalesce long format strings\n - Add missing \\n to \"ERROR: !SD_LOAD_BALANCE domain has parent\"\n\nSigned-off-by: Joe Perches \u003cjoe@perches.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1260655047.2637.7.camel@Joe-Laptop.home\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7539a3b3d1f892dd97eaf094134d7de55c13befe", "tree": "f49c29135265e452208c5a2e404590f2e0becbc8", "parents": [ "f40542532e96dda5506eb76badea322f2ae4731c" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Dec 13 00:07:30 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 13 08:12:46 2009 +0100" }, "message": "sched: Make wakeup side and atomic variants of completion API irq safe\n\nAlan Stern noticed that all the wakeup side (and atomic) variants of the\ncompletion APIs should be irq safe, but the newly introduced\ncompletion_done() and try_wait_for_completion() aren\u0027t. The use of the\nirq unsafe variants in IRQ contexts can cause crashes/hangs.\n\nFix the problem by making them use spin_lock_irqsave() and\nspin_lock_irqrestore().\n\nReported-by: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Zhang Rui \u003crui.zhang@intel.com\u003e\nCc: pm list \u003clinux-pm@lists.linux-foundation.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Chinner \u003cdavid@fromorbit.com\u003e\nCc: Lachlan McIlroy \u003clachlan@sgi.com\u003e\nLKML-Reference: \u003c200912130007.30541.rjw@sisk.pl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "702a7c7609bec3a940b6a46b0d6ab9ce45274580", "tree": "6c169691449259410b9b51a146acb0e837dae96a", "parents": [ "053fe57ac249a9531c396175778160d9e9509399", "b9889ed1ddeca5a3f3569c8de7354e9e97d803ae" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 12 11:34:10 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 12 11:34:10 2009 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (21 commits)\n sched: Remove forced2_migrations stats\n sched: Fix memory leak in two error corner cases\n sched: Fix build warning in get_update_sysctl_factor()\n sched: Update normalized values on user updates via proc\n sched: Make tunable scaling style configurable\n sched: Fix missing sched tunable recalculation on cpu add/remove\n sched: Fix task priority bug\n sched: cgroup: Implement different treatment for idle shares\n sched: Remove unnecessary RCU exclusion\n sched: Discard some old bits\n sched: Clean up check_preempt_wakeup()\n sched: Move update_curr() in check_preempt_wakeup() to avoid redundant call\n sched: Sanitize fork() handling\n sched: Clean up ttwu() rq locking\n sched: Remove rq-\u003eclock coupling from set_task_cpu()\n sched: Consolidate select_task_rq() callers\n sched: Remove sysctl.sched_features\n sched: Protect sched_rr_get_param() access to task-\u003esched_class\n sched: Protect task-\u003ecpus_allowed access in sched_getaffinity()\n sched: Fix balance vs hotplug race\n ...\n\nFixed up conflicts in kernel/sysctl.c (due to sysctl cleanup)\n" }, { "commit": "b9889ed1ddeca5a3f3569c8de7354e9e97d803ae", "tree": "7309bed51e68f3414a7dd4159a7941d672028dbc", "parents": [ "dfc12eb26a285df316be68a808af86964f3bff86" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 10 20:32:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 10 20:32:39 2009 +0100" }, "message": "sched: Remove forced2_migrations stats\n\nThis build warning:\n\n kernel/sched.c: In function \u0027set_task_cpu\u0027:\n kernel/sched.c:2070: warning: unused variable \u0027old_rq\u0027\n\nMade me realize that the forced2_migrations stat looks pretty\npointless (and a misnomer) - remove it.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dfc12eb26a285df316be68a808af86964f3bff86", "tree": "502e31f805cd335131a52dd202c7c2825cf4006b", "parents": [ "4ca3ef71f54655af98b66e8ff308a47a2a580a53" ], "author": { "name": "Phil Carmody", "email": "ext-phil.2.carmody@nokia.com", "time": "Thu Dec 10 14:29:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 10 14:28:10 2009 +0100" }, "message": "sched: Fix memory leak in two error corner cases\n\nIf the second in each of these pairs of allocations fails, then the\nfirst one will not be freed in the error route out.\n\nFound by a static code analysis tool.\n\nSigned-off-by: Phil Carmody \u003cext-phil.2.carmody@nokia.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1260448177-28448-1-git-send-email-ext-phil.2.carmody@nokia.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4ca3ef71f54655af98b66e8ff308a47a2a580a53", "tree": "8c9bb089d56fbf1dd3902cb0a9f43b9b49d4fdc6", "parents": [ "acb4a848da821a095ae9e4d8b22ae2d9633ba5cd" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Thu Dec 10 09:25:53 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 10 09:34:50 2009 +0100" }, "message": "sched: Fix build warning in get_update_sysctl_factor()\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nLKML-Reference: \u003cnew-submission\u003e\n" }, { "commit": "acb4a848da821a095ae9e4d8b22ae2d9633ba5cd", "tree": "152efff68841e554eb71c82a97d3ed9571352581", "parents": [ "1983a922a1bc843806b9a36cf3a370b242783140" ], "author": { "name": "Christian Ehrhardt", "email": "ehrhardt@linux.vnet.ibm.com", "time": "Mon Nov 30 12:16:48 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:04:02 2009 +0100" }, "message": "sched: Update normalized values on user updates via proc\n\nThe normalized values are also recalculated in case the scaling factor\nchanges.\n\nThis patch updates the internally used scheduler tuning values that are\nnormalized to one cpu in case a user sets new values via sysfs.\n\nTogether with patch 2 of this series this allows to let user configured\nvalues scale (or not) to cpu add/remove events taking place later.\n\nSigned-off-by: Christian Ehrhardt \u003cehrhardt@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1259579808-11357-4-git-send-email-ehrhardt@linux.vnet.ibm.com\u003e\n[ v2: fix warning ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1983a922a1bc843806b9a36cf3a370b242783140", "tree": "3071f23d39e05587823a40033c4c11a0867dd46e", "parents": [ "0bcdcf28c979869f44e05121b96ff2cfb05bd8e6" ], "author": { "name": "Christian Ehrhardt", "email": "ehrhardt@linux.vnet.ibm.com", "time": "Mon Nov 30 12:16:47 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:04:01 2009 +0100" }, "message": "sched: Make tunable scaling style configurable\n\nAs scaling now takes place on all kind of cpu add/remove events a user\nthat configures values via proc should be able to configure if his set\nvalues are still rescaled or kept whatever happens.\n\nAs the comments state that log2 was just a second guess that worked the\ninterface is not just designed for on/off, but to choose a scaling type.\nCurrently this allows none, log and linear, but more important it allwos\nus to keep the interface even if someone has an even better idea how to\nscale the values.\n\nSigned-off-by: Christian Ehrhardt \u003cehrhardt@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1259579808-11357-3-git-send-email-ehrhardt@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0bcdcf28c979869f44e05121b96ff2cfb05bd8e6", "tree": "c70b8fb37fec9badf95ac2ea679407334f580ae5", "parents": [ "57785df5ac53c70da9fb53696130f3c551bfe1f9" ], "author": { "name": "Christian Ehrhardt", "email": "ehrhardt@linux.vnet.ibm.com", "time": "Mon Nov 30 12:16:46 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:58 2009 +0100" }, "message": "sched: Fix missing sched tunable recalculation on cpu add/remove\n\nBased on Peter Zijlstras patch suggestion this enables recalculation of\nthe scheduler tunables in response of a change in the number of cpus. It\nalso adds a max of eight cpus that are considered in that scaling.\n\nSigned-off-by: Christian Ehrhardt \u003cehrhardt@linux.vnet.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1259579808-11357-2-git-send-email-ehrhardt@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "57785df5ac53c70da9fb53696130f3c551bfe1f9", "tree": "5653c894d74a1555f480835b013fdb7b512f8b69", "parents": [ "cd8ad40de36c2fe75f3b731bd70198b385895246" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Dec 04 09:59:02 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:10 2009 +0100" }, "message": "sched: Fix task priority bug\n\n83f9ac removed a call to effective_prio() in wake_up_new_task(), which\nleads to tasks running at MAX_PRIO.\n\nThis is caused by the idle thread being set to MAX_PRIO before forking\noff init. O(1) used that to make sure idle was always preempted, CFS\nuses check_preempt_curr_idle() for that so we can savely remove this bit\nof legacy code.\n\nReported-by: Mike Galbraith \u003cefault@gmx.de\u003e\nTested-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1259754383.4003.610.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cd8ad40de36c2fe75f3b731bd70198b385895246", "tree": "c1e6d5c8dddfa0d9ad643a1df8e92f26700e3143", "parents": [ "fb58bac5c75bfff8bbf7d02071a10a62f32fe28b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Dec 03 18:00:07 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:09 2009 +0100" }, "message": "sched: cgroup: Implement different treatment for idle shares\n\nWhen setting the weight for a per-cpu task-group, we have to put in a\nphantom weight when there is no work on that cpu, otherwise we\u0027ll not\nservice that cpu when new work gets placed there until we again update\nthe per-cpu weights.\n\nWe used to add these phantom weights to the total, so that the idle\nper-cpu shares don\u0027t get inflated, this however causes the non-idle\nparts to get deflated, causing unexpected weight distibutions.\n\nReverse this, so that the non-idle shares are correct but the idle\nshares are inflated.\n\nReported-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nTested-by: Yasunori Goto \u003cy-goto@jp.fujitsu.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1257934048.23203.76.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6cecd084d0fd27bb1e498e2829fd45846d806856", "tree": "90cc079c942ad35669d1a33957a121c1cb3a88a6", "parents": [ "3a7e73a2e26fffdbc46ba95fc0425418984f5140" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Nov 30 13:00:37 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:07 2009 +0100" }, "message": "sched: Discard some old bits\n\nWAKEUP_RUNNING was an experiment, not sure why that ever ended up being\nmerged...\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cd29fe6f2637cc2ccbda5ac65f5332d6bf5fa3c6", "tree": "b4206012d424a8c0bce1f260d042c678db0602a2", "parents": [ "ab19cb23313733c55e0517607844b86720b35f5f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 27 17:32:46 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:05 2009 +0100" }, "message": "sched: Sanitize fork() handling\n\nCurrently we try to do task placement in wake_up_new_task() after we do\nthe load-balance pass in sched_fork(). This yields complicated semantics\nin that we have to deal with tasks on different RQs and the\nset_task_cpu() calls in copy_process() and sched_fork()\n\nRename -\u003etask_new() to -\u003etask_fork() and call it from sched_fork()\nbefore the balancing, this gives the policy a clear point to place the\ntask.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ab19cb23313733c55e0517607844b86720b35f5f", "tree": "0d6780ab6d1e1e97b624e978ed3418e5786646d4", "parents": [ "5afcdab706d6002cb02b567ba46e650215e694e8" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 27 15:44:43 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:04 2009 +0100" }, "message": "sched: Clean up ttwu() rq locking\n\nSince set_task_clock() doesn\u0027t rely on rq-\u003eclock anymore we can simplyfy\nthe mess in ttwu().\n\nOptimize things a bit by not fiddling with the IRQ state there.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5afcdab706d6002cb02b567ba46e650215e694e8", "tree": "015c3fb61dc8a4217bc83927efd7882e7d494d2b", "parents": [ "970b13bacba14a8cef6f642861947df1d175b0b3" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 27 14:12:25 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:03 2009 +0100" }, "message": "sched: Remove rq-\u003eclock coupling from set_task_cpu()\n\nset_task_cpu() should be rq invariant and only touch task state, it\ncurrently fails to do so, which opens up a few races, since not all\ncallers hold both rq-\u003elocks.\n\nRemove the relyance on rq-\u003eclock, as any site calling set_task_cpu()\nshould also do a remote clock update, which should ensure the observed\ntime between these two cpus is monotonic, as per\nkernel/sched_clock.c:sched_clock_remote().\n\nTherefore we can simply remove the clock_offset bits and be happy.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "970b13bacba14a8cef6f642861947df1d175b0b3", "tree": "9baa1fe0074b25ccacd58b2da98a3d2fa1e46d16", "parents": [ "6b314d0e11924c803bf8cd944e87fd58cdb5088c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Nov 25 13:31:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:03:02 2009 +0100" }, "message": "sched: Consolidate select_task_rq() callers\n\nSmall cleanup.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\n[ v2: build fix ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dba091b9e3522b9d32fc9975e48d3b69633b45f0", "tree": "91549e3921971b6d0074fd34c29223b593381c8a", "parents": [ "3160568371da441b7f2fb57f2f1225404207e8f2" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 09:32:03 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:01:07 2009 +0100" }, "message": "sched: Protect sched_rr_get_param() access to task-\u003esched_class\n\nsched_rr_get_param calls\ntask-\u003esched_class-\u003eget_rr_interval(task) without protection\nagainst a concurrent sched_setscheduler() call which modifies\ntask-\u003esched_class.\n\nSerialize the access with task_rq_lock(task) and hand the rq\npointer into get_rr_interval() as it\u0027s needed at least in the\nsched_fair implementation.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003calpine.LFD.2.00.0912090930120.3089@localhost.localdomain\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3160568371da441b7f2fb57f2f1225404207e8f2", "tree": "bf717db23c352fe14138863157433a79f5edf3e6", "parents": [ "6ad4c18884e864cf4c77f9074d3d1816063f99cd" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Dec 08 20:24:16 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 09 10:01:06 2009 +0100" }, "message": "sched: Protect task-\u003ecpus_allowed access in sched_getaffinity()\n\nsched_getaffinity() is not protected against a concurrent\nmodification of the tasks affinity.\n\nSerialize the access with task_rq_lock(task).\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20091208202026.769251187@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1557d33007f63dd96e5d15f33af389378e5f2e54", "tree": "06d05722b2ba5d2a67532f779fa8a88efe3c88f1", "parents": [ "6ec22f9b037fc0c2e00ddb7023fad279c365324d", "c656ae95d1c5c8ed5763356263ace2d03087efec" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 07:38:50 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 08 07:38:50 2009 -0800" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)\n security/tomoyo: Remove now unnecessary handling of security_sysctl.\n security/tomoyo: Add a special case to handle accesses through the internal proc mount.\n sysctl: Drop \u0026 in front of every proc_handler.\n sysctl: Remove CTL_NONE and CTL_UNNUMBERED\n sysctl: kill dead ctl_handler definitions.\n sysctl: Remove the last of the generic binary sysctl support\n sysctl net: Remove unused binary sysctl code\n sysctl security/tomoyo: Don\u0027t look at ctl_name\n sysctl arm: Remove binary sysctl support\n sysctl x86: Remove dead binary sysctl support\n sysctl sh: Remove dead binary sysctl support\n sysctl powerpc: Remove dead binary sysctl support\n sysctl ia64: Remove dead binary sysctl support\n sysctl s390: Remove dead sysctl binary support\n sysctl frv: Remove dead binary sysctl support\n sysctl mips/lasat: Remove dead binary sysctl support\n sysctl drivers: Remove dead binary sysctl support\n sysctl crypto: Remove dead binary sysctl support\n sysctl security/keys: Remove dead binary sysctl support\n sysctl kernel: Remove binary sysctl logic\n ...\n" }, { "commit": "50de1a8ef18da0cfff97543315b4e042e8bb7c83", "tree": "86056d1aef0e83d7839a8350c9e6109b80b3cfa5", "parents": [ "390dfd95c5df1ab3921dd388d11b2aee332c3f2c", "ee0a6efc1897ef817e177e669f5c5d211194df24" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Dec 08 10:02:12 2009 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Dec 08 10:02:12 2009 +0900" }, "message": "Merge branch \u0027for-linus\u0027 into for-next\n\nConflicts:\n\tmm/percpu.c\n" }, { "commit": "6ad4c18884e864cf4c77f9074d3d1816063f99cd", "tree": "f09643f6148b576fa2d23bf7d4b37d082d94e267", "parents": [ "e1b8090bdf125f8b2e192149547fead7f302a89c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Nov 25 13:31:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 06 21:10:56 2009 +0100" }, "message": "sched: Fix balance vs hotplug race\n\nSince (e761b77: cpu hotplug, sched: Introduce cpu_active_map and redo\nsched domain managment) we have cpu_active_mask which is suppose to rule\nscheduler migration and load-balancing, except it never (fully) did.\n\nThe particular problem being solved here is a crash in try_to_wake_up()\nwhere select_task_rq() ends up selecting an offline cpu because\nselect_task_rq_fair() trusts the sched_domain tree to reflect the\ncurrent state of affairs, similarly select_task_rq_rt() trusts the\nroot_domain.\n\nHowever, the sched_domains are updated from CPU_DEAD, which is after the\ncpu is taken offline and after stop_machine is done. Therefore it can\nrace perfectly well with code assuming the domains are right.\n\nCure this by building the domains from cpu_active_mask on\nCPU_DOWN_PREPARE.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "897e81bea1fcfcd2c5cdb720c9efdb25da9ff374", "tree": "92cf33ed2c35c1ece633f09365702f1c8e24d415", "parents": [ "c3fa27d1367fac63ac8533d6f20ea851d0d70a10", "0cf55e1ec08bb5a22e068309e2d8ba1180ab4239" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 05 15:30:49 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 05 15:30:49 2009 -0800" }, "message": "Merge branch \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (35 commits)\n sched, cputime: Introduce thread_group_times()\n sched, cputime: Cleanups related to task_times()\n Revert \"sched, x86: Optimize branch hint in __switch_to()\"\n sched: Fix isolcpus boot option\n sched: Revert 498657a478c60be092208422fefa9c7b248729c2\n sched, time: Define nsecs_to_jiffies()\n sched: Remove task_{u,s,g}time()\n sched: Introduce task_times() to replace task_{u,s}time() pair\n sched: Limit the number of scheduler debug messages\n sched.c: Call debug_show_all_locks() when dumping all tasks\n sched, x86: Optimize branch hint in __switch_to()\n sched: Optimize branch hint in context_switch()\n sched: Optimize branch hint in pick_next_task_fair()\n sched_feat_write(): Update ppos instead of file-\u003ef_pos\n sched: Sched_rt_periodic_timer vs cpu hotplug\n sched, kvm: Fix race condition involving sched_in_preempt_notifers\n sched: More generic WAKE_AFFINE vs select_idle_sibling()\n sched: Cleanup select_task_rq_fair()\n sched: Fix granularity of task_u/stime()\n sched: Fix/add missing update_rq_clock() calls\n ...\n" }, { "commit": "607781762e7aae9c976f0a9a8829d4ba3e2da4ab", "tree": "933dad6ecb0be49e9b1ef41b69d5aa256510720e", "parents": [ "d0b093a8b5ae34ee8be1f7e0dd197fe4788fa1d5", "8bfb2f8e655b9d0c45fde679fcd5fd97e34513db" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 05 09:52:14 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 05 09:52:14 2009 -0800" }, "message": "Merge branch \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-rcu-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)\n rcu: Make RCU\u0027s CPU-stall detector be default\n rcu: Add expedited grace-period support for preemptible RCU\n rcu: Enable fourth level of TREE_RCU hierarchy\n rcu: Rename \"quiet\" functions\n rcu: Re-arrange code to reduce #ifdef pain\n rcu: Eliminate unneeded function wrapping\n rcu: Fix grace-period-stall bug on large systems with CPU hotplug\n rcu: Eliminate __rcu_pending() false positives\n rcu: Further cleanups of use of lastcomp\n rcu: Simplify association of forced quiescent states with grace periods\n rcu: Accelerate callback processing on CPUs not detecting GP end\n rcu: Mark init-time-only rcu_bootup_announce() as __init\n rcu: Simplify association of quiescent states with grace periods\n rcu: Rename dynticks_completed to completed_fqs\n rcu: Enable synchronize_sched_expedited() fastpath\n rcu: Remove inline from forward-referenced functions\n rcu: Fix note_new_gpnum() uses of -\u003egpnum\n rcu: Fix synchronization for rcu_process_gp_end() uses of -\u003ecompleted counter\n rcu: Prepare for synchronization fixes: clean up for non-NO_HZ handling of -\u003ecompleted counter\n rcu: Cleanup: balance rcu_irq_enter()/rcu_irq_exit() calls\n ...\n" }, { "commit": "c08f782985eed9959438368e84ce1d7f2ed03d95", "tree": "436cbaa8d2d91fffa812c3f8c933b025d3155f79", "parents": [ "c02260277e472095ffb3ad893be5eeab9dcefde3" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Dec 02 20:49:17 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 03 11:50:11 2009 +0100" }, "message": "mutex: Fix missing conditions to build mutex_spin_on_owner()\n\nWe don\u0027t need to build mutex_spin_on_owner() if we have\nCONFIG_DEBUG_MUTEXES or CONFIG_HAVE_DEFAULT_NO_SPIN_MUTEXES as\nit won\u0027t be used under such configs.\n\nUse CONFIG_MUTEX_SPIN_ON_OWNER as it gathers all the necessary\nchecks before building it.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c1259783357-8542-2-git-send-regression-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\n" }, { "commit": "0cf55e1ec08bb5a22e068309e2d8ba1180ab4239", "tree": "6102662a9594d51155bee11666fe8517fcbe6039", "parents": [ "d99ca3b977fc5a93141304f571475c2af9e6c1c5" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Wed Dec 02 17:28:07 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 02 17:32:40 2009 +0100" }, "message": "sched, cputime: Introduce thread_group_times()\n\nThis is a real fix for problem of utime/stime values decreasing\ndescribed in the thread:\n\n http://lkml.org/lkml/2009/11/3/522\n\nNow cputime is accounted in the following way:\n\n - {u,s}time in task_struct are increased every time when the thread\n is interrupted by a tick (timer interrupt).\n\n - When a thread exits, its {u,s}time are added to signal-\u003e{u,s}time,\n after adjusted by task_times().\n\n - When all threads in a thread_group exits, accumulated {u,s}time\n (and also c{u,s}time) in signal struct are added to c{u,s}time\n in signal struct of the group\u0027s parent.\n\nSo {u,s}time in task struct are \"raw\" tick count, while\n{u,s}time and c{u,s}time in signal struct are \"adjusted\" values.\n\nAnd accounted values are used by:\n\n - task_times(), to get cputime of a thread:\n This function returns adjusted values that originates from raw\n {u,s}time and scaled by sum_exec_runtime that accounted by CFS.\n\n - thread_group_cputime(), to get cputime of a thread group:\n This function returns sum of all {u,s}time of living threads in\n the group, plus {u,s}time in the signal struct that is sum of\n adjusted cputimes of all exited threads belonged to the group.\n\nThe problem is the return value of thread_group_cputime(),\nbecause it is mixed sum of \"raw\" value and \"adjusted\" value:\n\n group\u0027s {u,s}time \u003d foreach(thread){{u,s}time} + exited({u,s}time)\n\nThis misbehavior can break {u,s}time monotonicity.\nAssume that if there is a thread that have raw values greater\nthan adjusted values (e.g. interrupted by 1000Hz ticks 50 times\nbut only runs 45ms) and if it exits, cputime will decrease (e.g.\n-5ms).\n\nTo fix this, we could do:\n\n group\u0027s {u,s}time \u003d foreach(t){task_times(t)} + exited({u,s}time)\n\nBut task_times() contains hard divisions, so applying it for\nevery thread should be avoided.\n\nThis patch fixes the above problem in the following way:\n\n - Modify thread\u0027s exit (\u003d __exit_signal()) not to use task_times().\n It means {u,s}time in signal struct accumulates raw values instead\n of adjusted values. As the result it makes thread_group_cputime()\n to return pure sum of \"raw\" values.\n\n - Introduce a new function thread_group_times(*task, *utime, *stime)\n that converts \"raw\" values of thread_group_cputime() to \"adjusted\"\n values, in same calculation procedure as task_times().\n\n - Modify group\u0027s exit (\u003d wait_task_zombie()) to use this introduced\n thread_group_times(). It make c{u,s}time in signal struct to\n have adjusted values like before this patch.\n\n - Replace some thread_group_cputime() by thread_group_times().\n This replacements are only applied where conveys the \"adjusted\"\n cputime to users, and where already uses task_times() near by it.\n (i.e. sys_times(), getrusage(), and /proc/\u003cPID\u003e/stat.)\n\nThis patch have a positive side effect:\n\n - Before this patch, if a group contains many short-life threads\n (e.g. runs 0.9ms and not interrupted by ticks), the group\u0027s\n cputime could be invisible since thread\u0027s cputime was accumulated\n after adjusted: imagine adjustment function as adj(ticks, runtime),\n {adj(0, 0.9) + adj(0, 0.9) + ....} \u003d {0 + 0 + ....} \u003d 0.\n After this patch it will not happen because the adjustment is\n applied after accumulated.\n\nv2:\n - remove if()s, put new variables into signal_struct.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nLKML-Reference: \u003c4B162517.8040909@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d99ca3b977fc5a93141304f571475c2af9e6c1c5", "tree": "7665ebdafcef46c310055021562e6629f59eafd5", "parents": [ "be8147e68625a1adb111acfd6b98a492be4b74d0" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Wed Dec 02 17:26:47 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 02 17:32:39 2009 +0100" }, "message": "sched, cputime: Cleanups related to task_times()\n\n- Remove if({u,s}t)s because no one call it with NULL now.\n- Use cputime_{add,sub}().\n- Add ifndef-endif for prev_{u,s}time since they are used\n only when !VIRT_CPU_ACCOUNTING.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nLKML-Reference: \u003c4B1624C7.7040302@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bdddd2963c0264c56f18043f6fa829d3c1d3d1c0", "tree": "b3d886be91ddcf99e3b83c120aedebb840ff75df", "parents": [ "8592e6486a177a02f048567cb928bc3a1f9a86c3" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Wed Dec 02 14:09:16 2009 +1030" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 02 10:27:16 2009 +0100" }, "message": "sched: Fix isolcpus boot option\n\nAnton Blanchard wrote:\n\n\u003e We allocate and zero cpu_isolated_map after the isolcpus\n\u003e __setup option has run. This means cpu_isolated_map always\n\u003e ends up empty and if CPUMASK_OFFSTACK is enabled we write to a\n\u003e cpumask that hasn\u0027t been allocated.\n\nI introduced this regression in 49557e620339cb13 (sched: Fix\nboot crash by zalloc()ing most of the cpu masks).\n\nUse the bootmem allocator if they set isolcpus\u003d, otherwise\nallocate and zero like normal.\n\nReported-by: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: peterz@infradead.org\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: \u003cstable@kernel.org\u003e\nLKML-Reference: \u003c200912021409.17013.rusty@rustcorp.com.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nTested-by: Anton Blanchard \u003canton@samba.org\u003e\n" }, { "commit": "8592e6486a177a02f048567cb928bc3a1f9a86c3", "tree": "b33fda329271835bb879b6395efa5179b62a1b7b", "parents": [ "b7b20df91d43d5e59578b8fc16e895c0c8cbd9b5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Dec 02 12:56:46 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 02 09:55:33 2009 +0100" }, "message": "sched: Revert 498657a478c60be092208422fefa9c7b248729c2\n\n498657a478c60be092208422fefa9c7b248729c2 incorrectly assumed\nthat preempt wasn\u0027t disabled around context_switch() and thus\nwas fixing imaginary problem. It also broke KVM because it\ndepended on -\u003esched_in() to be called with irq enabled so that\nit can do smp calls from there.\n\nRevert the incorrect commit and add comment describing different\ncontexts under with the two callbacks are invoked.\n\nAvi: spotted transposed in/out in the added comment.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Avi Kivity \u003cavi@redhat.com\u003e\nCc: peterz@infradead.org\nCc: efault@gmx.de\nCc: rusty@rustcorp.com.au\nLKML-Reference: \u003c1259726212-30259-2-git-send-email-tj@kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b7b20df91d43d5e59578b8fc16e895c0c8cbd9b5", "tree": "9ad1a2347264db548a161575080ed3bdc32f6d51", "parents": [ "d5b7c78e975302a1bab28263266c39ecb71acad4" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Thu Nov 26 14:49:27 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 12:59:20 2009 +0100" }, "message": "sched, time: Define nsecs_to_jiffies()\n\nUse of msecs_to_jiffies() for nsecs_to_cputime() have some\nproblems:\n\n - The type of msecs_to_jiffies()\u0027s argument is unsigned int, so\n it cannot convert msecs greater than UINT_MAX \u003d about 49.7 days.\n\n - msecs_to_jiffies() returns MAX_JIFFY_OFFSET if MSB of argument\n is set, assuming that input was negative value. So it cannot\n convert msecs greater than INT_MAX \u003d about 24.8 days too.\n\nThis patch defines a new function nsecs_to_jiffies() that can\ndeal greater values, and that can deal all incoming values as\nunsigned.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Amrico Wang \u003cxiyou.wangcong@gmail.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: John Stultz \u003cjohnstul@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003c4B0E16E7.5070307@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d5b7c78e975302a1bab28263266c39ecb71acad4", "tree": "47d9a18b2e81b3f93faf89b548b50beff29dd4fe", "parents": [ "d180c5bccec02612256fd8076ff3c1fac3429553" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Thu Nov 26 14:49:05 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 12:59:20 2009 +0100" }, "message": "sched: Remove task_{u,s,g}time()\n\nNow all task_{u,s}time() pairs are replaced by task_times().\nAnd task_gtime() is too simple to be an inline function.\n\nCleanup them all.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nLKML-Reference: \u003c4B0E16D1.70902@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d180c5bccec02612256fd8076ff3c1fac3429553", "tree": "1ef4a45c81531645640380965916c68bbe7f6abb", "parents": [ "16bc67edeb49b531940b2ba6c183780a1b5c472d" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Thu Nov 26 14:48:30 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 12:59:19 2009 +0100" }, "message": "sched: Introduce task_times() to replace task_{u,s}time() pair\n\nFunctions task_{u,s}time() are called in pair in almost all\ncases. However task_stime() is implemented to call task_utime()\nfrom its inside, so such paired calls run task_utime() twice.\n\nIt means we do heavy divisions (div_u64 + do_div) twice to get\nutime and stime which can be obtained at same time by one set\nof divisions.\n\nThis patch introduces a function task_times(*tsk, *utime,\n*stime) to retrieve utime and stime at once in better, optimized\nway.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nLKML-Reference: \u003c4B0E16AE.906@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "16bc67edeb49b531940b2ba6c183780a1b5c472d", "tree": "71b4bc48e47e54f2c0b3126d8f81d2f31b707ea8", "parents": [ "f6630114d9198aa959ac95c131334c020038f253", "047106adcc85e3023da210143a6ab8a55df9e0fc" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 10:50:39 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 10:50:42 2009 +0100" }, "message": "Merge branch \u0027sched/urgent\u0027 into sched/core\n\nMerge reason: Pick up fixes that did not make it into .32.0\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f6630114d9198aa959ac95c131334c020038f253", "tree": "601e0f12aa8f599c40c0425ed6f2c4523fe2edbe", "parents": [ "93335a21557e80f6a99bc2812c634e488139043c" ], "author": { "name": "Mike Travis", "email": "travis@sgi.com", "time": "Tue Nov 17 18:22:15 2009 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 26 10:17:30 2009 +0100" }, "message": "sched: Limit the number of scheduler debug messages\n\nRemove the verbose scheduler debug messages unless kernel\nparameter \"sched_debug\" set. /proc/sched_debug unchanged.\n\nSigned-off-by: Mike Travis \u003ctravis@sgi.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Roland Dreier \u003crdreier@cisco.com\u003e\nCc: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nCc: Yinghai Lu \u003cyhlu.kernel@gmail.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: Jack Steiner \u003csteiner@sgi.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20091118002221.489305000@alcatraz.americas.sgi.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "93335a21557e80f6a99bc2812c634e488139043c", "tree": "da648a3345678f58181ba229bb415fc1565ab779", "parents": [ "a3a1de0c34de6f5f8332cd6151c46af7813c0fcb" ], "author": { "name": "Shmulik Ladkani", "email": "shmulik.ladkani@gmail.com", "time": "Wed Nov 25 15:23:41 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 25 14:26:52 2009 +0100" }, "message": "sched.c: Call debug_show_all_locks() when dumping all tasks\n\nIn commit v2.6.21-691-g39bc89f (\"make SysRq-T show all tasks\nagain\") the interface of show_state_filter() was changed: zero\nvalued \u0027state_filter\u0027 specifies \"dump all tasks\" (instead of -1).\n\nHowever, the condition for calling debug_show_all_locks() (\"show\nlocks if all tasks are dumped\") was not updated accordingly.\n\nSigned-off-by: Shmulik Ladkani \u003cshmulik.ladkani@gmail.com\u003e\nCc: peterz@infradead.org\nLKML-Reference: \u003c4b0d2fe4.0ab6660a.6437.3cfc@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "710390d90f143a9ebb87a475215140f426792efd", "tree": "53b2019edf0d25f3530e0c169ec01e7e115125d1", "parents": [ "36ace27e3e60d44ea69ce394b2e45386ae98d9d9" ], "author": { "name": "Tim Blechmann", "email": "tim@klingt.org", "time": "Tue Nov 24 11:55:27 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Nov 24 12:18:42 2009 +0100" }, "message": "sched: Optimize branch hint in context_switch()\n\nBranch hint profiling on my nehalem machine showed over 90%\nincorrect branch hints:\n\n 10420275 170645395 94 context_switch sched.c\n 3043\n 10408421 171098521 94 context_switch sched.c\n 3050\n\nSigned-off-by: Tim Blechmann \u003ctim@klingt.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4B0BBB9F.6080304@klingt.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "429947248f814e90f416ab4f68a871ab628000c3", "tree": "78f42d03ce2b8a6f3efec4cbc789680ac37f0fcc", "parents": [ "fe3bcfe1f6c1fc4ea7706ac2d05e579fd9092682" ], "author": { "name": "Jan Blunck", "email": "jblunck@suse.de", "time": "Fri Nov 20 17:40:37 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Nov 23 19:38:03 2009 +0100" }, "message": "sched_feat_write(): Update ppos instead of file-\u003ef_pos\n\nsched_feat_write() should update ppos instead of file-\u003ef_pos.\n\n(This reduces some BKL dependencies of this code.)\n\nSigned-off-by: Jan Blunck \u003cjblunck@suse.de\u003e\nCc: jkacur@redhat.com\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Jamie Lokier \u003cjamie@shareable.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Christoph Hellwig \u003chch@infradead.org\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nLKML-Reference: \u003c1258735245-25826-8-git-send-email-jblunck@suse.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bb9074ff58fe745e4f244f76209241909c82ec9c", "tree": "cf6be00ab88b1e315f6b74a896a370440f677599", "parents": [ "4739a9748e1bd7459f22f7e94e7d85710ca83954", "156171c71a0dc4bce12b4408bb1591f8fe32dc1a" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Nov 17 01:01:34 2009 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Tue Nov 17 01:01:34 2009 -0800" }, "message": "Merge commit \u0027v2.6.32-rc7\u0027\n\nResolve the conflict between v2.6.32-rc7 where dn_def_dev_handler\ngets a small bug fix and the sysctl tree where I am removing all\nsysctl strategy routines.\n" }, { "commit": "047106adcc85e3023da210143a6ab8a55df9e0fc", "tree": "dd92c3c65229622bed4b27c60f7d617c9dbf1a2a", "parents": [ "498657a478c60be092208422fefa9c7b248729c2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Nov 16 10:28:09 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Nov 16 10:46:27 2009 +0100" }, "message": "sched: Sched_rt_periodic_timer vs cpu hotplug\n\nHeiko reported a case where a timer interrupt managed to\nreference a root_domain structure that was already freed by a\nconcurrent hot-un-plug operation.\n\nSolve this like the regular sched_domain stuff is also\nsynchronized, by adding a synchronize_sched() stmt to the free\npath, this ensures that a root_domain stays present for any\natomic section that could have observed it.\n\nReported-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Gregory Haskins \u003cghaskins@novell.com\u003e\nCc: Siddha Suresh B \u003csuresh.b.siddha@intel.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nLKML-Reference: \u003c1258363873.26714.83.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "498657a478c60be092208422fefa9c7b248729c2", "tree": "c04542330fbbfaaa863fbec0f565b79c89df7033", "parents": [ "055a00865dcfc8e61f3cbefbb879c9577bd36ae5" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Nov 13 18:33:53 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Nov 15 09:59:54 2009 +0100" }, "message": "sched, kvm: Fix race condition involving sched_in_preempt_notifers\n\nIn finish_task_switch(), fire_sched_in_preempt_notifiers() is\ncalled after finish_lock_switch().\n\nHowever, depending on architecture, preemption can be enabled after\nfinish_lock_switch() which breaks the semantics of preempt\nnotifiers.\n\nSo move it before finish_arch_switch(). This also makes the in-\nnotifiers symmetric to out- notifiers in terms of locking - now\nboth are called under rq lock.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4AFD2801.7020900@kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "761b1d26df542fd5eb348837351e4d2f3bc7bffe", "tree": "3c548070fdf81b618d32f9878b41fb16d26ffcde", "parents": [ "ffd44db5f02af32bcc25a8eb5981bf02a141cdab" ], "author": { "name": "Hidetoshi Seto", "email": "seto.hidetoshi@jp.fujitsu.com", "time": "Thu Nov 12 13:33:45 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 12 15:23:47 2009 +0100" }, "message": "sched: Fix granularity of task_u/stime()\n\nOriginally task_s/utime() were designed to return clock_t but\nlater changed to return cputime_t by following commit:\n\n commit efe567fc8281661524ffa75477a7c4ca9b466c63\n Author: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\n Date: Thu Aug 23 15:18:02 2007 +0200\n\nIt only changed the type of return value, but not the\nimplementation. As the result the granularity of task_s/utime()\nis still that of clock_t, not that of cputime_t.\n\nSo using task_s/utime() in __exit_signal() makes values\naccumulated to the signal struct to be rounded and coarse\ngrained.\n\nThis patch removes casts to clock_t in task_u/stime(), to keep\ngranularity of cputime_t over the calculation.\n\nv2:\n Use div_u64() to avoid error \"undefined reference to `__udivdi3`\"\n on some 32bit systems.\n\nSigned-off-by: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: xiyou.wangcong@gmail.com\nCc: Spencer Candland \u003cspencer@bluehost.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nLKML-Reference: \u003c4AFB9029.9000208@jp.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "055a00865dcfc8e61f3cbefbb879c9577bd36ae5", "tree": "73d406a3e05b5226c8a83f9ce3f6d0c67a063cb7", "parents": [ "aa021baa3295fa6e3f367d80f8955dd5176656eb" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Thu Nov 12 11:07:44 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 12 12:28:29 2009 +0100" }, "message": "sched: Fix/add missing update_rq_clock() calls\n\nkthread_bind(), migrate_task() and sched_fork were missing\nupdates, and try_to_wake_up() was updating after having already\nused the stale clock.\n\nAside from preventing potential latency hits, there\u0027 a side\nbenefit in that early boot printk time stamps become monotonic.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1258020464.6491.2.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nLKML-Reference: \u003cnew-submission\u003e\n" }, { "commit": "56992309ccbe71f4321ddd50ee2f76f91b412c1a", "tree": "d2ffd767aa21cae9364769a25c6b181ccb8b3fb3", "parents": [ "ab09203e302b6e526f6930f3e460064b0f253ae9" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Nov 05 15:38:40 2009 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Nov 12 02:04:55 2009 -0800" }, "message": "sysctl kernel: Remove binary sysctl logic\n\nNow that sys_sysctl is a generic wrapper around /proc/sys .ctl_name\nand .strategy members of sysctl tables are dead code. Remove them.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "956539b75921f561c0956c22d37320780e8b4ba1", "tree": "07fb3e32fe104ad89f7a7bce1636416f541fe11d", "parents": [ "dbe01350fa8ce0c11948ab7d6be71a4d901be151" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Nov 10 13:37:20 2009 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Nov 10 22:48:49 2009 +0100" }, "message": "rcu: Enable synchronize_sched_expedited() fastpath\n\nThis patch adds a counter increment to enable tasks to actually\ntake the synchronize_sched_expedited() function\u0027s fastpath.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c1257889042435-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ffd44db5f02af32bcc25a8eb5981bf02a141cdab", "tree": "75716dc543821a79a1dff0739b43bb0283d400cf", "parents": [ "eae0c9dfb534cb3449888b9601228efa6480fdb5" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Tue Nov 10 20:12:01 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Nov 10 20:22:31 2009 +0100" }, "message": "sched: Make sure task has correct sched_class after policy change\n\nFrom the code in rt_mutex_setprio(), it is evident that the\nintention is that task\u0027s with a RT \u0027prio\u0027 value as a consequence\nof receiving a PI boost also have their \u0027sched_class\u0027 field set\nto \u0027\u0026rt_sched_class\u0027.\n\nHowever, Peter noticed that the code in __setscheduler() could\nresult in this intention being frustrated. Fix it.\n\nReported-by: Peter Williams \u003cpwil3058@bigpond.net.au\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1257880321.4108.457.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eae0c9dfb534cb3449888b9601228efa6480fdb5", "tree": "760b553398c783088950c007ca6a213328a7e5c6", "parents": [ "d8c80ce091f6ead6710bc71b58f2c32e5bf855e4" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Tue Nov 10 03:50:02 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Nov 10 04:25:58 2009 +0100" }, "message": "sched: Fix and clean up rate-limit newidle code\n\nCommit 1b9508f, \"Rate-limit newidle\" has been confirmed to fix\nthe netperf UDP loopback regression reported by Alex Shi.\n\nThis is a cleanup and a fix:\n\n - moved to a more out of the way spot\n\n - fix to ensure that balancing doesn\u0027t try to balance\n runqueues which haven\u0027t gone online yet, which can\n mess up CPU enumeration during boot.\n\nReported-by: Alex Shi \u003calex.shi@intel.com\u003e\nReported-by: Zhang, Yanmin \u003cyanmin_zhang@linux.intel.com\u003e\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \u003cstable@kernel.org\u003e # .32.x: a1f84a3: sched: Check for an idle shared cache\nCc: \u003cstable@kernel.org\u003e # .32.x: 1b9508f: sched: Rate-limit newidle\nCc: \u003cstable@kernel.org\u003e # .32.x: fd21073: sched: Fix affinity logic\nCc: \u003cstable@kernel.org\u003e # .32.x\nLKML-Reference: \u003c1257821402.5648.17.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d8c80ce091f6ead6710bc71b58f2c32e5bf855e4", "tree": "c476a7dc17a163908f01262a7da2ff85ef6bccd3", "parents": [ "fd210738f6601d0fb462df9a2fe5a41896ff6a8f" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Oct 27 15:45:23 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Nov 08 13:17:47 2009 +0100" }, "message": "sched, no_hz: Remove unused rq-\u003elast_tick_seen field\n\nIn 15934a37324f32e0fda633dc7984a671ea81cd75,\nfield last_tick_seen is added to struct rq.\nBut it is unused now.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Guillaume Chazarain \u003cguichaz@yahoo.fr\u003e\nLKML-Reference: \u003c4AE6A513.6010100@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e9036b36eed4d3cdb33fa9cbcdd9888ae516889f", "tree": "769497c425cfe602e7765884185cd769428cc67e", "parents": [ "968c86458a5975efa7a95f832a4ec9fb21471137" ], "author": { "name": "Cyrill Gorcunov", "email": "gorcunov@openvz.org", "time": "Mon Oct 26 22:24:14 2009 +0300" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Nov 08 13:15:48 2009 +0100" }, "message": "sched: Use root_task_group_empty only with FAIR_GROUP_SCHED\n\nroot_task_group_empty is used only with FAIR_GROUP_SCHED\nso if we use other scheduler options we get:\n\n kernel/sched.c:314: warning: \u0027root_task_group_empty\u0027 defined but not used\n\nSo move CONFIG_FAIR_GROUP_SCHED up that it covers\nroot_task_group_empty().\n\nSigned-off-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20091026192414.GB5321@lenovo\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "968c86458a5975efa7a95f832a4ec9fb21471137", "tree": "05be75c81e7492d402471c5a51394cce9a5459f2", "parents": [ "7c9abfb884b8737f0afdc8a88bcea77526f0da87" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Fri Nov 06 15:31:08 2009 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Nov 08 11:26:25 2009 +0100" }, "message": "sched: Fix kernel-doc function parameter name\n\nFix variable name in sched.c kernel-doc notation.\n\nFixes this DocBook warning:\n\n Warning(kernel/sched.c:2008): No description found for parameter\n \u0027p\u0027 Warning(kernel/sched.c:2008): Excess function parameter \u0027k\u0027\n description in \u0027kthread_bind\u0027\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nLKML-Reference: \u003c4AF4B1BC.8020604@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "608221fdf9a2170962295dcfbea53dc5c50d1a74", "tree": "26712f2f8a8a332369df2b31174c8c5b46c42164", "parents": [ "72cc129e8dae988d2a132467cfd0ecd7623c35fb", "b84ff7d6f1b7f8a43414e74d972ec4c8f3361db4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 05 10:56:47 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 05 10:56:47 2009 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c\n sched: Disable SD_PREFER_LOCAL at node level\n sched: Fix boot crash by zalloc()ing most of the cpu masks\n sched: Strengthen buddies and mitigate buddy induced latencies\n" }, { "commit": "1b9508f6831e10d53256825de8904caa22d1ca2c", "tree": "1b9f62947a75432000cfe46b22071d2b09e5899a", "parents": [ "a1f84a3ab8e002159498814eaa7e48c33752b04b" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Nov 04 17:53:50 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 04 19:13:48 2009 +0100" }, "message": "sched: Rate-limit newidle\n\nRate limit newidle to migration_cost. It\u0027s a win for all\nstages of sysbench oltp tests.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "acc3f5d7cabbfd6cec71f0c1f9900621fa2d6ae7", "tree": "672ed45f6df2f52e8f3cced2ee11ad29a1533890", "parents": [ "e2c880630438f80b474378d5487b511b07665051" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Nov 03 14:53:40 2009 +1030" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 04 13:16:40 2009 +0100" }, "message": "cpumask: Partition_sched_domains takes array of cpumask_var_t\n\nCurrently partition_sched_domains() takes a \u0027struct cpumask\n*doms_new\u0027 which is a kmalloc\u0027ed array of cpumask_t. You can\u0027t\nhave such an array if \u0027struct cpumask\u0027 is undefined, as we plan\nfor CONFIG_CPUMASK_OFFSTACK\u003dy.\n\nSo, we make this an array of cpumask_var_t instead: this is the\nsame for the CONFIG_CPUMASK_OFFSTACK\u003dn case, but requires\nmultiple allocations for the CONFIG_CPUMASK_OFFSTACK\u003dy case.\nHence we add alloc_sched_domains() and free_sched_domains()\nfunctions.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c200911031453.40668.rusty@rustcorp.com.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9824a2b728b63e7ff586b9fd9293c819be79f0f3", "tree": "cb73b6d37e5854206bf669bc63c72342191039c8", "parents": [ "2a2bb3142d326bb28b03875cabfc49baaac9a14a" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Wed Nov 04 16:16:54 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 04 11:43:43 2009 +0100" }, "message": "sched: Remove unused cpu_nr_migrations()\n\ncpu_nr_migrations() is not used, remove it.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4AF12A66.6020609@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b84ff7d6f1b7f8a43414e74d972ec4c8f3361db4", "tree": "7e8db08b8dd7d28780f3d08466928c907e5e0440", "parents": [ "6b9de613ae9c79b637e070136585dde029578065" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Thu Oct 29 11:48:30 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Nov 03 07:25:00 2009 +0100" }, "message": "sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c\n\nEric Paris reported that commit\nf685ceacab07d3f6c236f04803e2f2f0dbcc5afb causes boot time\nPREEMPT_DEBUG complaints.\n\n [ 4.590699] BUG: using smp_processor_id() in preemptible [00000000] code: rmmod/1314\n [ 4.593043] caller is task_hot+0x86/0xd0\n\nSince kthread_bind() messes with scheduler internals, move the\nbody to sched.c, and lock the runqueue.\n\nReported-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nTested-by: Eric Paris \u003ceparis@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1256813310.7574.3.camel@marge.simson.net\u003e\n[ v2: fix !SMP build and clean up ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "49557e620339cb134127b5bfbcfecc06b77d0232", "tree": "a2a73c84a384243a63c1b8e8462c39381d5ef98e", "parents": [ "f685ceacab07d3f6c236f04803e2f2f0dbcc5afb" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Nov 02 20:37:20 2009 +1030" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Nov 02 15:48:54 2009 +0100" }, "message": "sched: Fix boot crash by zalloc()ing most of the cpu masks\n\nI got a boot crash when forcing cpumasks offstack on 32 bit,\nbecause find_new_ilb() returned 3 on my UP system (nohz.cpu_mask\nwasn\u0027t zeroed).\n\nAFAICT the others need to be zeroed too: only\nnohz.ilb_grp_nohz_mask is initialized before use.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c200911022037.21282.rusty@rustcorp.com.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8633322c5fd5b2a986b279f88a7559d8409f7da3", "tree": "2db612751e9fa5c3624f008c7e4d520e77944852", "parents": [ "9532faeb293f5a5f0ff06f567de14e557698dbde", "4a6cc4bd32e580722882115d4c8b964d732c11e4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 09:19:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 09:19:29 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:\n sched: move rq_weight data array out of .percpu\n percpu: allow pcpu_alloc() to be called with IRQs off\n" }, { "commit": "1871e52c76dd95895caeb772f845a1718dcbcd75", "tree": "49e8148326f65353e673204f427bd4545eb26c16", "parents": [ "0f5e4816dbf38ce9488e611ca2296925c1e90d5e" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu Oct 29 22:34:13 2009 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu Oct 29 22:34:13 2009 +0900" }, "message": "percpu: make percpu symbols under kernel/ and mm/ unique\n\nThis patch updates percpu related symbols under kernel/ and mm/ such\nthat percpu symbols are unique and don\u0027t clash with local symbols.\nThis serves two purposes of decreasing the possibility of global\npercpu symbol collision and allowing dropping per_cpu__ prefix from\npercpu symbols.\n\n* kernel/lockdep.c: s/lock_stats/cpu_lock_stats/\n\n* kernel/sched.c: s/init_rq_rt/init_rt_rq_var/\t(any better idea?)\n \t\t s/sched_group_cpus/sched_groups/\n\n* kernel/softirq.c: s/ksoftirqd/run_ksoftirqd/a\n\n* kernel/softlockup.c: s/(*)_timestamp/softlockup_\\1_ts/\n \t\t s/watchdog_task/softlockup_watchdog/\n\t\t s/timestamp/ts/ for local variables\n\n* kernel/time/timer_stats: s/lookup_lock/tstats_lookup_lock/\n\n* mm/slab.c: s/reap_work/slab_reap_work/\n \t s/reap_node/slab_reap_node/\n\n* mm/vmstat.c: local variable changed to avoid collision with vmstat_work\n\nPartly based on Rusty Russell\u0027s \"alloc_percpu: rename percpu vars\nwhich cause name clashes\" patch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: (slab/vmstat) Christoph Lameter \u003ccl@linux-foundation.org\u003e\nReviewed-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\n" }, { "commit": "4a6cc4bd32e580722882115d4c8b964d732c11e4", "tree": "dbfa457caf9a65231f2f55c1ad03cf4d6f16f67c", "parents": [ "403a91b1659cb149dbddc5885f892734ae4542d8" ], "author": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Thu Oct 29 00:26:00 2009 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu Oct 29 00:26:00 2009 +0900" }, "message": "sched: move rq_weight data array out of .percpu\n\nCommit 34d76c41 introduced percpu array update_shares_data, size of which\nbeing proportional to NR_CPUS. Unfortunately this blows up ia64 for large\nNR_CPUS configuration, as ia64 allows only 64k for .percpu section.\n\nFix this by allocating this array dynamically and keep only pointer to it\npercpu.\n\nThe per-cpu handling doesn\u0027t impose significant performance penalty on\npotentially contented path in tg_shares_up().\n\n...\nffffffff8104337c: 65 48 8b 14 25 20 cd mov %gs:0xcd20,%rdx\nffffffff81043383: 00 00\nffffffff81043385: 48 c7 c0 00 e1 00 00 mov $0xe100,%rax\nffffffff8104338c: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp)\nffffffff81043393: 00\nffffffff81043394: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp)\nffffffff8104339b: 00\nffffffff8104339c: 48 01 d0 add %rdx,%rax\nffffffff8104339f: 49 8d 94 24 08 01 00 lea 0x108(%r12),%rdx\nffffffff810433a6: 00\nffffffff810433a7: b9 ff ff ff ff mov $0xffffffff,%ecx\nffffffff810433ac: 48 89 45 b0 mov %rax,-0x50(%rbp)\nffffffff810433b0: bb 00 04 00 00 mov $0x400,%ebx\nffffffff810433b5: 48 89 55 c0 mov %rdx,-0x40(%rbp)\n...\n\nAfter:\n\n...\nffffffff8104337c: 65 8b 04 25 28 cd 00 mov %gs:0xcd28,%eax\nffffffff81043383: 00\nffffffff81043384: 48 98 cltq\nffffffff81043386: 49 8d bc 24 08 01 00 lea 0x108(%r12),%rdi\nffffffff8104338d: 00\nffffffff8104338e: 48 8b 15 d3 7f 76 00 mov 0x767fd3(%rip),%rdx # ffffffff817ab368 \u003cupdate_shares_data\u003e\nffffffff81043395: 48 8b 34 c5 00 ee 6d mov -0x7e921200(,%rax,8),%rsi\nffffffff8104339c: 81\nffffffff8104339d: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp)\nffffffff810433a4: 00\nffffffff810433a5: b9 ff ff ff ff mov $0xffffffff,%ecx\nffffffff810433aa: 48 89 7d c0 mov %rdi,-0x40(%rbp)\nffffffff810433ae: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp)\nffffffff810433b5: 00\nffffffff810433b6: bb 00 04 00 00 mov $0x400,%ebx\nffffffff810433bb: 48 01 f2 add %rsi,%rdx\nffffffff810433be: 48 89 55 b0 mov %rdx,-0x50(%rbp)\n...\n\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "ce0e7b28fb75cb003cfc8d0238613aaf1c55e797", "tree": "e70bec2040045b68876d85036756bc046b5d2742", "parents": [ "0b9e31e9264f1bad89856afb96da1688292f13b4" ], "author": { "name": "Ryota Ozaki", "email": "ozaki.ryota@gmail.com", "time": "Sat Oct 24 01:20:10 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Oct 25 17:31:30 2009 +0100" }, "message": "sched, cpuacct: Fix niced guest time accounting\n\nCPU time of a guest is always accounted in \u0027user\u0027 time\nwithout concern for the nice value of its counterpart\nprocess although the guest is scheduled under the nice\nvalue.\n\nThis patch fixes the defect and accounts cpu time of\na niced guest in \u0027nice\u0027 time as same as a niced process.\n\nAnd also the patch adds \u0027guest_nice\u0027 to cpuacct. The\nvalue provides niced guest cpu time which is like \u0027nice\u0027\nto \u0027user\u0027.\n\nThe original discussions can be found here:\n\n http://www.mail-archive.com/kvm@vger.kernel.org/msg23982.html\n http://www.mail-archive.com/kvm@vger.kernel.org/msg23860.html\n\nSigned-off-by: Ryota Ozaki \u003cozaki.ryota@gmail.com\u003e\nAcked-by: Avi Kivity \u003cavi@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1256314810-7897-1-git-send-email-ozaki.ryota@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0b9e31e9264f1bad89856afb96da1688292f13b4", "tree": "7a9e9b6456dce993efeed8734de0a15a1f16ae94", "parents": [ "cf82ff7ea7695b0e82ba07bc5e9f1bd03a74e1aa", "964fe080d94db82a3268443e9b9ece4c60246414" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Oct 25 17:30:53 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Oct 25 17:30:53 2009 +0100" }, "message": "Merge branch \u0027linus\u0027 into sched/core\n\nConflicts:\n\tfs/proc/array.c\n\nMerge reason: resolve conflict and queue up dependent patch.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f685ceacab07d3f6c236f04803e2f2f0dbcc5afb", "tree": "f5fbbb177ccb784ffa6d6224b7b8f0cb8a096bb9", "parents": [ "92f6a5e37a2e2d3342dafb2b39c2f8bc340bbf84" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Fri Oct 23 23:09:22 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 23 23:48:28 2009 +0200" }, "message": "sched: Strengthen buddies and mitigate buddy induced latencies\n\nThis patch restores the effectiveness of LAST_BUDDY in preventing\npgsql+oltp from collapsing due to wakeup preemption. It also\nswitches LAST_BUDDY to exclusively do what it does best, namely\nmitigate the effects of aggressive wakeup preemption, which\nimproves vmark throughput markedly, and restores mysql+oltp\nscalability.\n\nSince buddies are about scalability, enable them beginning at the\npoint where we begin expanding sched_latency, namely\nsched_nr_latency. Previously, buddies were cleared aggressively,\nwhich seriously reduced their effectiveness. Not clearing\naggressively however, produces a small drop in mysql+oltp\nthroughput immediately after peak, indicating that LAST_BUDDY is\nactually doing some harm. This is right at the point where X on the\ndesktop in competition with another load wants low latency service.\nErgo, do not enable until we need to scale.\n\nTo mitigate latency induced by buddies, or by a task just missing\nwakeup preemption, check latency at tick time.\n\nLast hunk prevents buddies from stymieing BALANCE_NEWIDLE via\nCACHE_HOT_BUDDY.\n\nSupporting performance tests:\n\n tip \u003d v2.6.32-rc5-1497-ga525b32\n tipx \u003d NO_GENTLE_FAIR_SLEEPERS NEXT_BUDDY granularity knobs \u003d 31 knobs + 31 buddies\n tip+x \u003d NO_GENTLE_FAIR_SLEEPERS granularity knobs \u003d 31 knobs\n\n(Three run averages except where noted.)\n\n vmark:\n ------\n tip 108466 messages per second\n tip+ 125307 messages per second\n tip+x 125335 messages per second\n tipx 117781 messages per second\n 2.6.31.3 122729 messages per second\n\n mysql+oltp:\n -----------\n clients 1 2 4 8 16 32 64 128 256\n ..........................................................................................\n tip 9949.89 18690.20 34801.24 34460.04 32682.88 30765.97 28305.27 25059.64 19548.08\n tip+ 10013.90 18526.84 34900.38 34420.14 33069.83 32083.40 30578.30 28010.71 25605.47\n tipx 9698.71 18002.70 34477.56 33420.01 32634.30 31657.27 29932.67 26827.52 21487.18\n 2.6.31.3 8243.11 18784.20 34404.83 33148.38 31900.32 31161.90 29663.81 25995.94 18058.86\n\n pgsql+oltp:\n -----------\n clients 1 2 4 8 16 32 64 128 256\n ..........................................................................................\n tip 13686.37 26609.25 51934.28 51347.81 49479.51 45312.65 36691.91 26851.57 24145.35\n tip+ (1x) 13907.85 27135.87 52951.98 52514.04 51742.52 50705.43 49947.97 48374.19 46227.94\n tip+x 13906.78 27065.81 52951.19 52542.59 52176.11 51815.94 50838.90 49439.46 46891.00\n tipx 13742.46 26769.81 52351.99 51891.73 51320.79 50938.98 50248.65 48908.70 46553.84\n 2.6.31.3 13815.35 26906.46 52683.34 52061.31 51937.10 51376.80 50474.28 49394.47 47003.25\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f061d83a2b29f08b41c494335b7d23a432cb5a2d", "tree": "4b3fe2797968491f1e18e5ef52a9d08b37a2c301", "parents": [ "e345fe1ada6f91bf703ca080168745ef18b2f037", "e17b38bf9e70d74f3739a600db75240078ac1407" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:25:04 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:25:04 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix missing kernel-doc notation\n Revert \"x86, timers: Check for pending timers after (device) interrupts\"\n sched: Update the clock of runqueue select_task_rq() selected\n" }, { "commit": "80f506918fdaaca6b574ba931536a58ce015c7be", "tree": "938bddf32e8c5dca114cb1a5f3ca2a62960accc8", "parents": [ "a3bafbbbb5ac49355aa35e6a722eac6ef1dff19a", "2ec24ff1d1875defa742c76c9c7d74dca06b7e1f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 13 10:21:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 13 10:21:33 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block:\n cciss: Add cciss_allow_hpsa module parameter\n cciss: Fix multiple calls to pci_release_regions\n blk-settings: fix function parameter kernel-doc notation\n writeback: kill space in debugfs item name\n writeback: account IO throttling wait as iowait\n elv_iosched_store(): fix strstrip() misuse\n cfq-iosched: avoid probable slice overrun when idling\n cfq-iosched: apply bool value where we return 0/1\n cfq-iosched: fix think time allowed for seekers\n cfq-iosched: fix the slice residual sign\n cfq-iosched: abstract out the \u0027may this cfqq dispatch\u0027 logic\n block: use proper BLK_RW_ASYNC in blk_queue_start_tag()\n block: Seperate read and write statistics of in_flight requests v2\n block: get rid of kblock_schedule_delayed_work()\n cfq-iosched: fix possible problem with jiffies wraparound\n cfq-iosched: fix issue with rq-rq merging and fifo list ordering\n" }, { "commit": "e17b38bf9e70d74f3739a600db75240078ac1407", "tree": "356f252a6e2ff7d3b61d9c94b2a2d452ab6551d3", "parents": [ "e7ab0f7b50bc4688fb5cf65de5d42e3b882fb8d1" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Sun Oct 11 19:12:00 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 12 10:50:06 2009 +0200" }, "message": "sched: Fix missing kernel-doc notation\n\nThe following htmldocs warnings:\n\n Warning(kernel/sched.c:685): No description found for parameter \u0027cpu\u0027\n Warning(kernel/sched.c:3676): No description found for parameter \u0027sd\u0027\n\nTrigger because new parameters were added to update_rq_clock() and\nupdate_group_power() without updating the kernel-doc notation.\n\nSigned-off-by: Jaswinder Singh Rajput \u003cjaswinderrajput@gmail.com\u003e\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4AD29070.7070002@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f5dc37530ba8a35aae0f7f4f13781d1904f71e94", "tree": "866894f6bf41876a7c6096912c82e73d140d3071", "parents": [ "36a07902c2134649c4af7f07980413ffb1a56085" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Fri Oct 09 08:35:03 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 09 15:58:11 2009 +0200" }, "message": "sched: Update the clock of runqueue select_task_rq() selected\n\nIn try_to_wake_up(), we update the runqueue clock, but\nselect_task_rq() may select a different runqueue than the one we\nupdated, leaving the new runqueue\u0027s clock stale for a bit.\n\nThis patch cures occasional huge latencies reported by latencytop\nwhen coming out of idle on a mostly idle NO_HZ box.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1255070103.7639.30.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d25105e8911bff1dbd68e387f12901c5b1a15fe8", "tree": "bcb94e898b9f3b0322db74473e4dd319a16308e2", "parents": [ "8c279598585e4992a41016bb973993ed15888cb3" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Fri Oct 09 12:40:42 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Oct 09 12:40:42 2009 +0200" }, "message": "writeback: account IO throttling wait as iowait\n\nIt makes sense to do IOWAIT when someone is blocked\ndue to IO throttle, as suggested by Kame and Peter.\n\nThere is an old comment for not doing IOWAIT on throttle,\nhowever it has been mismatching the code for a long time.\n\nIf we stop accounting IOWAIT for 2.6.32, it could be an\nundesirable behavior change. So restore the io_schedule.\n\nCC: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCC: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "cf82ff7ea7695b0e82ba07bc5e9f1bd03a74e1aa", "tree": "d5c7c53b1cb2fe787d14b852c1bf4621f2a0efed", "parents": [ "d01d4827858cdc2e1c437c87ab65ec0a00fd40f8" ], "author": { "name": "Jayson R. King", "email": "dev@jaysonking.com", "time": "Mon Oct 05 05:21:26 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:37:22 2009 +0200" }, "message": "sched: Remove obsolete comment in sched_init()\n\nRemove the comment about calling alloc_bootmem() as it is not\ncalled here since commit 36b7b6d465489c4754c4fd66fcec6086eba87896.\n\nSigned-off-by: Jayson R. King \u003cdev@jaysonking.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Jiri Kosina \u003ctrivial@kernel.org\u003e\nLKML-Reference: \u003c4AC9C8A6.6010209@jaysonking.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f83f9ac2632732bd1678150b5a03d152f912fe72", "tree": "cbf8600bf31cec0cb7d22c02cdcd27d992ba5c84", "parents": [ "374576a8b6f865022c0fd1ca62396889b23d66dd" ], "author": { "name": "Peter Williams", "email": "pwil3058@bigpond.net.au", "time": "Thu Sep 24 06:47:10 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 13:42:20 2009 +0200" }, "message": "sched: Set correct normal_prio and prio values in sched_fork()\n\nnormal_prio should be updated if policy changes from RT to\nSCHED_MORMAL or if static_prio/nice is changed.\n\nSome paths through sched_fork() ignore this requirement and may\nresult in normal_prio having an invalid value.\n\nFixing this issue allows the call to effective_prio() in\nwake_up_new_task() to be removed.\n\nSigned-off-by: Peter Williams \u003cpwil3058@bigpond.net.au\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003cf8f46736fd4e7f090ac0.1253774830@mudlark.pw.nest\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "828c09509b9695271bcbdc53e9fc9a6a737148d2", "tree": "072ffad6f02db7bf4095e07e2b90247cfa042998", "parents": [ "1c4115e595dec42aa0e81ba47ef46e35b34ed428" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Oct 01 15:43:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 01 16:11:11 2009 -0700" }, "message": "const: constify remaining file_operations\n\n[akpm@linux-foundation.org: fix KVM]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8d65af789f3e2cf4cfbdbf71a0f7a61ebcd41d38", "tree": "121df3bfffc7853ac6d2c514ad514d4a748a0933", "parents": [ "c0d0787b6d47d9f4d5e8bd321921104e854a9135" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Sep 23 15:57:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:21:04 2009 -0700" }, "message": "sysctl: remove \"struct file *\" argument of -\u003eproc_handler\n\nIt\u0027s unused.\n\nIt isn\u0027t needed -- read or write flag is already passed and sysctl\nshouldn\u0027t care about the rest.\n\nIt _was_ used in two places at arch/frv for some reason.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "be367d09927023d081f9199665c8500f69f14d22", "tree": "f0c5b9da037506da3c5890cf11b51b39a7d3c427", "parents": [ "c378369d8b4fa516ff2b1e79c3eded4e0e955ebb" ], "author": { "name": "Ben Blum", "email": "bblum@google.com", "time": "Wed Sep 23 15:56:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:20:58 2009 -0700" }, "message": "cgroups: let ss-\u003ecan_attach and ss-\u003eattach do whole threadgroups at a time\n\nAlter the ss-\u003ecan_attach and ss-\u003eattach functions to be able to deal with\na whole threadgroup at a time, for use in cgroup_attach_proc. (This is a\npre-patch to cgroup-procs-writable.patch.)\n\nCurrently, new mode of the attach function can only tell the subsystem\nabout the old cgroup of the threadgroup leader. No subsystem currently\nneeds that information for each thread that\u0027s being moved, but if one were\nto be added (for example, one that counts tasks within a group) this bit\nwould need to be reworked a bit to tell the subsystem the right\ninformation.\n\n[hidave.darkstar@gmail.com: fix build]\nSigned-off-by: Ben Blum \u003cbblum@google.com\u003e\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nAcked-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nReviewed-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Dave Young \u003chidave.darkstar@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": "31bbb9b58d1e8ebcf2b28c95c2250a9f8e31e397", "tree": "6bb0c0490d66d32eca43e73abb28d8b3ab0e7b91", "parents": [ "ff830b8e5f999d1ccbd0282a666520f0b557daa4", "3f0a525ebf4b8ef041a332bbe4a73aee94bb064b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 09:46:15 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 09:46:15 2009 -0700" }, "message": "Merge branch \u0027timers-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n itimers: Add tracepoints for itimer\n hrtimer: Add tracepoint for hrtimers\n timers: Add tracepoints for timer_list timers\n cputime: Optimize jiffies_to_cputime(1)\n itimers: Simplify arm_timer() code a bit\n itimers: Fix periodic tics precision\n itimers: Merge ITIMER_VIRT and ITIMER_PROF\n\nTrivial header file include conflicts in kernel/fork.c\n" }, { "commit": "69d25870f20c4b2563304f2b79c5300dd60a067e", "tree": "cda2b2d65c1be95420c6ba92ae2d40fade4232c4", "parents": [ "45d80eea87c9f8292d2d33173d6866c0ec57238a" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Mon Sep 21 17:04:08 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:45 2009 -0700" }, "message": "cpuidle: fix the menu governor to boost IO performance\n\nFix the menu idle governor which balances power savings, energy efficiency\nand performance impact.\n\nThe reason for a reworked governor is that there have been serious\nperformance issues reported with the existing code on Nehalem server\nsystems.\n\nTo show this I\u0027m sure Andrew wants to see benchmark results:\n(benchmark is \"fio\", \"no cstates\" is using \"idle\u003dpoll\")\n\n\t\tno cstates\tcurrent linux\tnew algorithm\n1 disk\t\t107 Mb/s\t85 Mb/s\t\t105 Mb/s\n2 disks\t\t215 Mb/s\t123 Mb/s\t209 Mb/s\n12 disks\t590 Mb/s\t320 Mb/s\t585 Mb/s\n\nIn various power benchmark measurements, no degredation was found by our\nmeasurement\u0026diagnostics team. Obviously a small percentage more power was\nused in the \"fio\" benchmark, due to the much higher performance.\n\nWhile it would be a novel idea to describe the new algorithm in this\ncommit message, I cheaped out and described it in comments in the code\ninstead.\n\n[changes since first post: spelling fixes from akpm, review feedback,\nfolded menu-tng into menu.c]\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Yanmin Zhang \u003cyanmin_zhang@linux.intel.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "43c1266ce4dc06bfd236cec31e11e9ecd69c0bef", "tree": "40a86739ca4c36200f447f655b01c57cfe646e26", "parents": [ "b8c7f1dc5ca4e0d10709182233cdab932cef593d", "57c0c15b5244320065374ad2c54f4fbec77a6428" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Sep 21 09:15:07 2009 -0700" }, "message": "Merge branch \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-rename-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Tidy up after the big rename\n perf: Do the big rename: Performance Counters -\u003e Performance Events\n perf_counter: Rename \u0027event\u0027 to event_id/hw_event\n perf_counter: Rename list_entry -\u003e group_entry, counter_list -\u003e group_list\n\nManually resolved some fairly trivial conflicts with the tracing tree in\ninclude/trace/ftrace.h and kernel/trace/trace_syscalls.c.\n" } ], "next": "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6" }