)]}' { "log": [ { "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": "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": "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": "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": "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" }, { "commit": "cdd6c482c9ff9c55475ee7392ec8f672eddb7be6", "tree": "81f98a3ab46c589792057fe2392c1e10f8ad7893", "parents": [ "dfc65094d0313cc48969fa60bcf33d693aeb05a7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 12:02:48 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 14:28:04 2009 +0200" }, "message": "perf: Do the big rename: Performance Counters -\u003e Performance Events\n\nBye-bye Performance Counters, welcome Performance Events!\n\nIn the past few months the perfcounters subsystem has grown out its\ninitial role of counting hardware events, and has become (and is\nbecoming) a much broader generic event enumeration, reporting, logging,\nmonitoring, analysis facility.\n\nNaming its core object \u0027perf_counter\u0027 and naming the subsystem\n\u0027perfcounters\u0027 has become more and more of a misnomer. With pending\ncode like hw-breakpoints support the \u0027counter\u0027 name is less and\nless appropriate.\n\nAll in one, we\u0027ve decided to rename the subsystem to \u0027performance\nevents\u0027 and to propagate this rename through all fields, variables\nand API names. (in an ABI compatible fashion)\n\nThe word \u0027event\u0027 is also a bit shorter than \u0027counter\u0027 - which makes\nit slightly more convenient to write/handle as well.\n\nThanks goes to Stephane Eranian who first observed this misnomer and\nsuggested a rename.\n\nUser-space tooling and ABI compatibility is not affected - this patch\nshould be function-invariant. (Also, defconfigs were not touched to\nkeep the size down.)\n\nThis patch has been generated via the following script:\n\n FILES\u003d$(find * -type f | grep -vE \u0027oprofile|[^K]config\u0027)\n\n sed -i \\\n -e \u0027s/PERF_EVENT_/PERF_RECORD_/g\u0027 \\\n -e \u0027s/PERF_COUNTER/PERF_EVENT/g\u0027 \\\n -e \u0027s/perf_counter/perf_event/g\u0027 \\\n -e \u0027s/nb_counters/nb_events/g\u0027 \\\n -e \u0027s/swcounter/swevent/g\u0027 \\\n -e \u0027s/tpcounter_event/tp_event/g\u0027 \\\n $FILES\n\n for N in $(find . -name perf_counter.[ch]); do\n M\u003d$(echo $N | sed \u0027s/perf_counter/perf_event/g\u0027)\n mv $N $M\n done\n\n FILES\u003d$(find . -name perf_event.*)\n\n sed -i \\\n -e \u0027s/COUNTER_MASK/REG_MASK/g\u0027 \\\n -e \u0027s/COUNTER/EVENT/g\u0027 \\\n -e \u0027s/\\\u003cevent\\\u003e/event_id/g\u0027 \\\n -e \u0027s/counter/event/g\u0027 \\\n -e \u0027s/Counter/Event/g\u0027 \\\n $FILES\n\n... to keep it as correct as possible. This script can also be\nused by anyone who has pending perfcounters patches - it converts\na Linux kernel tree over to the new naming. We tried to time this\nchange to the point in time where the amount of pending patches\nis the smallest: the end of the merge window.\n\nNamespace clashes were fixed up in a preparatory patch - and some\nstylistic fallout will be fixed up in a subsequent patch.\n\n( NOTE: \u0027counters\u0027 are still the proper terminology when we deal\n with hardware registers - and these sed scripts are a bit\n over-eager in renaming them. I\u0027ve undone some of that, but\n in case there\u0027s something left where \u0027counter\u0027 would be\n better than \u0027event\u0027 we can undo that on an individual basis\n instead of touching an otherwise nicely automated patch. )\n\nSuggested-by: Stephane Eranian \u003ceranian@google.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nReviewed-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0d721ceadbeaa24d7f9dd41b3e5e29912327a7e1", "tree": "54c0c8dc201122483bdd7e8975103b07f6afd34b", "parents": [ "cb5fd13f1178dee4302646b2890d884c380160e1" ], "author": { "name": "Peter Williams", "email": "pwil3058@bigpond.net.au", "time": "Mon Sep 21 01:31:53 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 21 09:53:55 2009 +0200" }, "message": "sched: Simplify sys_sched_rr_get_interval() system call\n\nBy removing the need for it to know details of scheduling classes.\n\nThis allows PlugSched to define orthogonal scheduling classes.\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: \u003c06d1b89ee15a0eef82d7.1253496713@mudlark.pw.nest\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cb5fd13f1178dee4302646b2890d884c380160e1", "tree": "473960daef1977f2bff85c21d0f5ed9f84d35ebd", "parents": [ "89f19f04dc72363d912fd007a399cb10310eff6e" ], "author": { "name": "Yong Zhang", "email": "yong.zhang0@gmail.com", "time": "Mon Sep 14 20:20:16 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 20 20:20:30 2009 +0200" }, "message": "sched: Fix potential NULL derference of doms_cur\n\nIf CONFIG_CPUMASK_OFFSTACK is enabled but doms_cur alloc failed in\narch_init_sched_domains(), doms_cur will move back to\nfallback_doms. But this time, fallback_doms has not been\ninitialized yet.\n\nSigned-off-by: Yong Zhang \u003cyong.zhang0@gmail.com\u003e\nCc: a.p.zijlstra@chello.nl\nLKML-Reference: \u003c1252930816-7672-1-git-send-email-yong.zhang0@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "89f19f04dc72363d912fd007a399cb10310eff6e", "tree": "daa64e5de98a668eed4a2ceeb6ca95c478be4053", "parents": [ "3f04e8cd5b24727a2500f8ab8f3de730ba47b02c" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Sat Sep 19 11:55:44 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 20 20:00:32 2009 +0200" }, "message": "sched: Fix raciness in runqueue_is_locked()\n\nrunqueue_is_locked() is unavoidably racy due to a poor interface design.\nIt does\n\n\tcpu \u003d get_cpu()\n\tret \u003d some_perpcu_thing(cpu);\n\tput_cpu(cpu);\n\treturn ret;\n\nIts return value is unreliable.\n\nFix.\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nAcked-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c200909191855.n8JItiko022148@imap1.linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dcbf77b9e86e1726f5fbd01bb98820dac06d456e", "tree": "2f0b728ce70c03e1d0e3461e8a3c3d1fbe68fb90", "parents": [ "ca043a66ae48c74fa628ec92178f7a54f5b9a106", "29cd8bae396583a2ee9a3340db8c5102acf9f6fd" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 17 21:00:02 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 17 21:00:02 2009 -0700" }, "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: (37 commits)\n sched: Fix SD_POWERSAVING_BALANCE|SD_PREFER_LOCAL vs SD_WAKE_AFFINE\n sched: Stop buddies from hogging the system\n sched: Add new wakeup preemption mode: WAKEUP_RUNNING\n sched: Fix TASK_WAKING \u0026 loadaverage breakage\n sched: Disable wakeup balancing\n sched: Rename flags to wake_flags\n sched: Clean up the load_idx selection in select_task_rq_fair\n sched: Optimize cgroup vs wakeup a bit\n sched: x86: Name old_perf in a unique way\n sched: Implement a gentler fair-sleepers feature\n sched: Add SD_PREFER_LOCAL\n sched: Add a few SYNC hint knobs to play with\n sched: Fix sync wakeups again\n sched: Add WF_FORK\n sched: Rename sync arguments\n sched: Rename select_task_rq() argument\n sched: Feature to disable APERF/MPERF cpu_power\n x86: sched: Provide arch implementations using aperf/mperf\n x86: Add generic aperf/mperf code\n x86: Move APERF/MPERF into a X86_FEATURE\n ...\n\nFix up trivial conflict in arch/x86/include/asm/processor.h due to\nnearby addition of amd_get_nb_id() declaration from the EDAC merge.\n" }, { "commit": "ad4b78bbcbab66998b05d422ac6106b645796e54", "tree": "45f3561f4bd6b886948a3b0eea64edab9bab9eda", "parents": [ "eb24073bc1fe3e569a855cf38d529fb650c35524" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed Sep 16 12:31:31 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 17 10:17:25 2009 +0200" }, "message": "sched: Add new wakeup preemption mode: WAKEUP_RUNNING\n\nCreate a new wakeup preemption mode, preempt towards tasks that run\nshorter on avg. It sets next buddy to be sure we actually run the task\nwe preempted for.\n\nTest results:\n\n root@twins:~# while :; do :; done \u0026\n [1] 6537\n root@twins:~# while :; do :; done \u0026\n [2] 6538\n root@twins:~# while :; do :; done \u0026\n [3] 6539\n root@twins:~# while :; do :; done \u0026\n [4] 6540\n\n root@twins:/home/peter# ./latt -c4 sleep 4\n Entries: 48 (clients\u003d4)\n\n Averages:\n ------------------------------\n Max 4750 usec\n Avg 497 usec\n Stdev 737 usec\n\n root@twins:/home/peter# echo WAKEUP_RUNNING \u003e /debug/sched_features\n\n root@twins:/home/peter# ./latt -c4 sleep 4\n Entries: 48 (clients\u003d4)\n\n Averages:\n ------------------------------\n Max 14 usec\n Avg 5 usec\n Stdev 3 usec\n\nDisabled by default - needs more testing.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nLKML-Reference: \u003cnew-submission\u003e\n" }, { "commit": "eb24073bc1fe3e569a855cf38d529fb650c35524", "tree": "1dfc4a556f5b78c59cb1accf96666d3105a1cd78", "parents": [ "182a85f8a119c789610a9d464f4129ded9f3c107" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 16 21:09:13 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 17 09:51:20 2009 +0200" }, "message": "sched: Fix TASK_WAKING \u0026 loadaverage breakage\n\nFix this:\n\ntop - 21:54:00 up 2:59, 1 user, load average: 432512.33, 426421.74, 417432.74\n\nWhich happens because we now set TASK_WAKING before activate_task().\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": "3b6408942206f940dd538e980e9904e48f4b64f8", "tree": "7e0a0dc37d07e0308ef2294a5de1cd1ea42a388c", "parents": [ "7c423e98856df9b941223a7e7845b2502ad84b00" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Sep 16 13:44:33 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 16 16:44:32 2009 +0200" }, "message": "sched: Optimize cgroup vs wakeup a bit\n\nWe don\u0027t need to call update_shares() for each domain we iterate,\njust got the largets one.\n\nHowever, we should call it before wake_affine() as well, so that\nthat can use up-to-date values too.\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": "63859d4fe4c97b737e7adbfe60acb1c2b2e668cb", "tree": "72b52a9f76df953b43554bdc00404f20b9645ee4", "parents": [ "a7558e01056f5191ff2ecff53b075dcb9e484188" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 15 19:14:42 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 19:47:22 2009 +0200" }, "message": "sched: Fix sync wakeups again\n\nThe sync argument rename to introduce WF_* broke stuff by missing a\nlocal alias for an argument in __wake_up_common, fix it by using\nthe more descriptive wake_flags name.\n\nThis restores WF_SYNC propagation, which fixes wake_affine()\nbehaviour, which fixes pipe-test.\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": "ada3fa15057205b7d3f727bba5cd26b5912e350f", "tree": "60962fc9e4021b92f484d1a58e72cd3906d4f3db", "parents": [ "2f82af08fcc7dc01a7e98a49a5995a77e32a2925", "5579fd7e6aed8860ea0c8e3f11897493153b10ad" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 15 09:39:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 15 09:39:44 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: (46 commits)\n powerpc64: convert to dynamic percpu allocator\n sparc64: use embedding percpu first chunk allocator\n percpu: kill lpage first chunk allocator\n x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA\n percpu: update embedding first chunk allocator to handle sparse units\n percpu: use group information to allocate vmap areas sparsely\n vmalloc: implement pcpu_get_vm_areas()\n vmalloc: separate out insert_vmalloc_vm()\n percpu: add chunk-\u003ebase_addr\n percpu: add pcpu_unit_offsets[]\n percpu: introduce pcpu_alloc_info and pcpu_group_info\n percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward\n percpu: add @align to pcpu_fc_alloc_fn_t\n percpu: make @dyn_size mandatory for pcpu_setup_first_chunk()\n percpu: drop @static_size from first chunk allocators\n percpu: generalize first chunk allocator selection\n percpu: build first chunk allocators selectively\n percpu: rename 4k first chunk allocator to page\n percpu: improve boot messages\n percpu: fix pcpu_reclaim() locking\n ...\n\nFix trivial conflict as by Tejun Heo in kernel/sched.c\n" }, { "commit": "a7558e01056f5191ff2ecff53b075dcb9e484188", "tree": "1364bbf9273ce353f4f3146aebe567f79b7c8cad", "parents": [ "7d47872146398dbede13223299fe1cb368ebc781" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 14 20:02:34 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:51:31 2009 +0200" }, "message": "sched: Add WF_FORK\n\nAvoid the cache buddies from biasing the time distribution away\nfrom fork()ers. Normally the next buddy will be the preferred\nscheduling target, but this makes fork()s prefer to run the new\nchild, whereas we prefer to run the parent, since that will\ngenerate more work.\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": "7d47872146398dbede13223299fe1cb368ebc781", "tree": "c472424ecbabdb8136e2b93f49f75af9414f03f3", "parents": [ "0763a660a84220cc3900fd32abdd7ad109e2278d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 14 19:55:44 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:51:30 2009 +0200" }, "message": "sched: Rename sync arguments\n\nIn order to extend the functions to have more than 1 flag (sync),\nrename the argument to flags, and explicitly define a WF_ space for\nindividual flags.\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": "8e6598af3f35629c37249a610cf13e73f70db279", "tree": "a341d416329f5331e4f7c6834d637266ba389b78", "parents": [ "47fe38fcff0517e67d395c039d2e26d2de688a60" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 03 13:20:03 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:51:28 2009 +0200" }, "message": "sched: Feature to disable APERF/MPERF cpu_power\n\nI suspect a feed-back loop between cpuidle and the aperf/mperf\ncpu_power bits, where when we have idle C-states lower the ratio,\nwhich leads to lower cpu_power and then less load, which generates\nmore idle time, etc..\n\nPut in a knob to disable it.\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": "d6a59aa3a2b1ca8411884c833a313b33b5f76e20", "tree": "9a4626d9721c79add9eec752a7ff2bd61e5b58a1", "parents": [ "b8a543ea5a5896830a9969bacfd047f9d15940b2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Sep 02 13:28:02 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:51:24 2009 +0200" }, "message": "sched: Provide arch_scale_freq_power\n\nProvide an ach specific hook for cpufreq based scaling of\ncpu_power.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n[ego@in.ibm.com: spotting bugs]\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ae154be1f34a674e6cbb43ccf6e442f56acd7a70", "tree": "e1feba2c818216c97e11801ee7a6e3c2592b10af", "parents": [ "c88d5910890ad35af283344417891344604f0438" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 10 14:40:57 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:06 2009 +0200" }, "message": "sched: Weaken SD_POWERSAVINGS_BALANCE\n\nOne of the problems of power-saving balancing is that under certain\nscenarios it is too slow and allows tons of real work to pile up.\n\nAvoid this by ignoring the powersave stuff when there\u0027s real work\nto be done.\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": "c88d5910890ad35af283344417891344604f0438", "tree": "4e2025d569c3e03a7ec5163f0a9bc159114ee14e", "parents": [ "e9c8431185d6c406887190519f6dbdd112641686" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 10 13:50:02 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:05 2009 +0200" }, "message": "sched: Merge select_task_rq_fair() and sched_balance_self()\n\nThe problem with wake_idle() is that is doesn\u0027t respect things like\ncpu_power, which means it doesn\u0027t deal well with SMT nor the recent\nRT interaction.\n\nTo cure this, it needs to do what sched_balance_self() does, which\nleads to the possibility of merging select_task_rq_fair() and\nsched_balance_self().\n\nModify sched_balance_self() to:\n\n - update_shares() when walking up the domain tree,\n (it only called it for the top domain, but it should\n have done this anyway), which allows us to remove\n this ugly bit from try_to_wake_up().\n\n - do wake_affine() on the smallest domain that contains\n both this (the waking) and the prev (the wakee) cpu for\n WAKE invocations.\n\nThen use the top-down balance steps it had to replace wake_idle().\n\nThis leads to the dissapearance of SD_WAKE_BALANCE and\nSD_WAKE_IDLE_FAR, with SD_WAKE_IDLE replaced with SD_BALANCE_WAKE.\n\nSD_WAKE_AFFINE needs SD_BALANCE_WAKE to be effective.\n\nTouch all topology bits to replace the old with new SD flags --\nplatforms might need re-tuning, enabling SD_BALANCE_WAKE\nconditionally on a NUMA distance seems like a good additional\nfeature, magny-core and small nehalem systems would want this\nenabled, systems with slow interconnects would not.\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": "e9c8431185d6c406887190519f6dbdd112641686", "tree": "3c502201451df7bbfcd653fee940fcb40bdaaeb6", "parents": [ "5f3edc1b1ead6d9bd45a85c551f44eff8fe76b9f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 15 14:43:03 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:05 2009 +0200" }, "message": "sched: Add TASK_WAKING\n\nWe\u0027re going to want to drop rq-\u003elock in try_to_wake_up() for a\nlonger period of time, however we also want to deal with concurrent\nwaking of the same task, which is currently handled by holding\nrq-\u003elock.\n\nSo introduce a new TASK state, namely TASK_WAKING, which indicates\nsomeone is already waking the task (other wakers will fail p-\u003estate\n\u0026 state).\n\nWe also keep preemption disabled over the whole ttwu().\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": "5f3edc1b1ead6d9bd45a85c551f44eff8fe76b9f", "tree": "46f987010ca017be945831b76d8ea846f1ba8fc9", "parents": [ "aaee1203ca52b9db799433c33c9bffc33cdf8909" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 10 13:42:00 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:04 2009 +0200" }, "message": "sched: Hook sched_balance_self() into sched_class::select_task_rq()\n\nRather ugly patch to fully place the sched_balance_self() code\ninside the fair class.\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": "aaee1203ca52b9db799433c33c9bffc33cdf8909", "tree": "27da699a8034090f8be9e24d1b7cedb8f6cdf804", "parents": [ "f5f08f39ee4c5fd0a757d25d9e04d696676b3df7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 10 13:36:25 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:04 2009 +0200" }, "message": "sched: Move sched_balance_self() into sched_fair.c\n\nMove the sched_balance_self() code into sched_fair.c\n\nThis facilitates the merger of sched_balance_self() and\nsched_fair::select_task_rq().\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": "f5f08f39ee4c5fd0a757d25d9e04d696676b3df7", "tree": "c2037357c38fd91b628ec71910d4ea4a36037932", "parents": [ "e26af0e8b2c9916f1e8a12ddaf52057bbe8ff600" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Sep 10 13:35:28 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:03 2009 +0200" }, "message": "sched: Move code around\n\nIn preparation to other code movement, move weighted_cpuload(),\nsource_load() and target_load() before the class includes.\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": "b78bb868c54bebbf8d8786a3f8320700d6d2b864", "tree": "de0c66ccbefff6b34959c2331b397804725fc3ce", "parents": [ "0cc6d77e55eca9557bbe41bf2db94b31aa8fcb2a" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 15 14:23:18 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 15 16:01:01 2009 +0200" }, "message": "sched: Fix double_rq_lock() compile warning\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": "774a694f8cd08115d130a290d73c6d8563f26b1b", "tree": "2b5f834ac7a149278d2a7e44d7afe69f40ef1431", "parents": [ "4f0ac854167846bd55cd81dbc9a36e03708aa01c", "e1f8450854d69f0291882804406ea1bab3ca44b4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:23:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:23:18 2009 -0700" }, "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: (64 commits)\n sched: Fix sched::sched_stat_wait tracepoint field\n sched: Disable NEW_FAIR_SLEEPERS for now\n sched: Keep kthreads at default priority\n sched: Re-tune the scheduler latency defaults to decrease worst-case latencies\n sched: Turn off child_runs_first\n sched: Ensure that a child can\u0027t gain time over it\u0027s parent after fork()\n sched: enable SD_WAKE_IDLE\n sched: Deal with low-load in wake_affine()\n sched: Remove short cut from select_task_rq_fair()\n sched: Turn on SD_BALANCE_NEWIDLE\n sched: Clean up topology.h\n sched: Fix dynamic power-balancing crash\n sched: Remove reciprocal for cpu_power\n sched: Try to deal with low capacity, fix update_sd_power_savings_stats()\n sched: Try to deal with low capacity\n sched: Scale down cpu_power due to RT tasks\n sched: Implement dynamic cpu_power\n sched: Add smt_gain\n sched: Update the cpu_power sum during load-balance\n sched: Add SD_PREFER_SIBLING\n ...\n" }, { "commit": "eee2775d9924b22643bd89b2e568cc5eed7e8a04", "tree": "095ad7851895c5d39596f3ff7ee1e078235a2501", "parents": [ "53e16fbd30005905168d9b75555fdc7e0a2eac58", "7db905e636f08ea5bc9825c1f73d77802e8ccad5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:20:18 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:20:18 2009 -0700" }, "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: (28 commits)\n rcu: Move end of special early-boot RCU operation earlier\n rcu: Changes from reviews: avoid casts, fix/add warnings, improve comments\n rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees\n rcu: Remove lockdep annotations from RCU\u0027s _notrace() API members\n rcu: Add #ifdef to suppress __rcu_offline_cpu() warning in !HOTPLUG_CPU builds\n rcu: Add CPU-offline processing for single-node configurations\n rcu: Add \"notrace\" to RCU function headers used by ftrace\n rcu: Remove CONFIG_PREEMPT_RCU\n rcu: Merge preemptable-RCU functionality into hierarchical RCU\n rcu: Simplify rcu_pending()/rcu_check_callbacks() API\n rcu: Use debugfs_remove_recursive() simplify code.\n rcu: Merge per-RCU-flavor initialization into pre-existing macro\n rcu: Fix online/offline indication for rcudata.csv trace file\n rcu: Consolidate sparse and lockdep declarations in include/linux/rcupdate.h\n rcu: Renamings to increase RCU clarity\n rcu: Move private definitions from include/linux/rcutree.h to kernel/rcutree.h\n rcu: Expunge lingering references to CONFIG_CLASSIC_RCU, optimize on !SMP\n rcu: Delay rcu_barrier() wait until beginning of next CPU-hotunplug operation.\n rcu: Fix typo in rcu_irq_exit() comment header\n rcu: Make rcupreempt_trace.c look at offline CPUs\n ...\n" }, { "commit": "d7ea17a76916e456fcc78e45142c66f7fb875e3d", "tree": "be8422a0c60216991ccd98923fe13547738ab354", "parents": [ "18a3885fc1ffa92c2212ff0afdf033403d5b0fa0" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 11:49:25 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 11:52:52 2009 +0200" }, "message": "sched: Fix dynamic power-balancing crash\n\nThis crash:\n\n[ 1774.088275] divide error: 0000 [#1] SMP\n[ 1774.100355] CPU 13\n[ 1774.102498] Modules linked in:\n[ 1774.105631] Pid: 30881, comm: hackbench Not tainted 2.6.31-rc8-tip-01308-g484d664-dirty #1629 X8DTN\n[ 1774.114807] RIP: 0010:[\u003cffffffff81041c38\u003e] [\u003cffffffff81041c38\u003e]\nsched_balance_self+0x19b/0x2d4\n\nTriggers because update_group_power() modifies the sd tree and does\ntemporary calculations there - not considering that other CPUs\ncould observe intermediate values, such as the zero initial value.\n\nCalculate it in a temporary variable instead. (we need no memory\nbarrier as these are all statistical values anyway)\n\nAcked-by: 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: \u003c20090904092742.GA11014@elte.hu\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "18a3885fc1ffa92c2212ff0afdf033403d5b0fa0", "tree": "e83c640c68d957b793b56e90274aa2f3d0e97655", "parents": [ "d899a789c28ded9c72b57ddb61868d6b8fc23e80" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:39 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:56 2009 +0200" }, "message": "sched: Remove reciprocal for cpu_power\n\nIts a source of fail, also, now that cpu_power is dynamical,\nits a waste of time.\n\nbefore:\n\u003cidle\u003e-0 [000] 132.877936: find_busiest_group: avg_load: 0 group_load: 8241 power: 1\n\nafter:\nbash-1689 [001] 137.862151: find_busiest_group: avg_load: 10636288 group_load: 10387 power: 1\n\n[ v2: build fix from From: Andreas Herrmann ]\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083826.425896304@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d899a789c28ded9c72b57ddb61868d6b8fc23e80", "tree": "0b636ca14480093af22e64e09d1d72632d26fbd7", "parents": [ "bdb94aa5dbd8b55e75f5a50b61312fe589e2c2d1" ], "author": { "name": "Gautham R Shenoy", "email": "ego@in.ibm.com", "time": "Wed Sep 02 16:59:10 2009 +0530" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:56 2009 +0200" }, "message": "sched: Try to deal with low capacity, fix update_sd_power_savings_stats()\n\nsgs.group_capacity can now be 0, if for some reason\ngroup-\u003e__cpu_power happens to be less than SCHED_LOAD_SCALE/2.\n\nIn that case, we need the following fix to make it work for\nupdate_sd_power_savings_stats(). That\u0027s because both\nsum_nr_running and group_capacity are unsigned longs.\n\nCc: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bdb94aa5dbd8b55e75f5a50b61312fe589e2c2d1", "tree": "388da3774a3c69f4a0a74285478226311ec41c90", "parents": [ "e9e9250bc78e7f6342517214c0178a529807964b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:55 2009 +0200" }, "message": "sched: Try to deal with low capacity\n\nWhen the capacity drops low, we want to migrate load away.\nAllow the load-balancer to remove all tasks when we hit rock\nbottom.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083826.342231003@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e9e9250bc78e7f6342517214c0178a529807964b", "tree": "9466a437ccfa93b200f4ee434fe807dd6b5fc050", "parents": [ "ab29230e673c646292c90c8b9d378b9562145af0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:55 2009 +0200" }, "message": "sched: Scale down cpu_power due to RT tasks\n\nKeep an average on the amount of time spend on RT tasks and use\nthat fraction to scale down the cpu_power for regular tasks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083826.287778431@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ab29230e673c646292c90c8b9d378b9562145af0", "tree": "0b87a89add83d14f0cf6aae3b6322865985103a0", "parents": [ "a52bfd73589eaf88d9c95ad2c1de0b38a6b27972" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:36 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:54 2009 +0200" }, "message": "sched: Implement dynamic cpu_power\n\nRecompute the cpu_power for each cpu during load-balance.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083826.162033479@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a52bfd73589eaf88d9c95ad2c1de0b38a6b27972", "tree": "33cee609a46624525abf1643d71d0fbc79e25f87", "parents": [ "cc9fba7d7672fa3ed58d9d9ecb6c45b1351c29a6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:35 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:54 2009 +0200" }, "message": "sched: Add smt_gain\n\nThe idea is that multi-threading a core yields more work\ncapacity than a single thread, provide a way to express a\nstatic gain for threads.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083826.073345955@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cc9fba7d7672fa3ed58d9d9ecb6c45b1351c29a6", "tree": "a2ae08f8edad60c17134fb5ff60b0deb21dc96ab", "parents": [ "b5d978e0c7e79a7ff842e895c85a86b38c71f1cd" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:34 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:53 2009 +0200" }, "message": "sched: Update the cpu_power sum during load-balance\n\nIn order to prepare for a more dynamic cpu_power, update the\ngroup sum while walking the sched domains during load-balance.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083825.985050292@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b5d978e0c7e79a7ff842e895c85a86b38c71f1cd", "tree": "83502797f31953c66a76ab9cd43d6df999084210", "parents": [ "f93e65c186ab3c05ce2068733ca10e34fd00125e" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:33 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:53 2009 +0200" }, "message": "sched: Add SD_PREFER_SIBLING\n\nDo the placement thing using SD flags.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083825.897028974@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f93e65c186ab3c05ce2068733ca10e34fd00125e", "tree": "0e42dc647e8f24fd5abc0be7ef3d9a4fc58a2069", "parents": [ "9aa55fbd01779a0b476d87cd9b5170fd5bebab1d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Sep 01 10:34:32 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:09:53 2009 +0200" }, "message": "sched: Restore __cpu_power to a straight sum of power\n\ncpu_power is supposed to be a representation of the process\ncapacity of the cpu, not a value to randomly tweak in order to\naffect placement.\n\nRemove the placement hacks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nLKML-Reference: \u003c20090901083825.810860576@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9aa55fbd01779a0b476d87cd9b5170fd5bebab1d", "tree": "05b3ee6aef944b8e853269bac07d4cef0728c05c", "parents": [ "768d0c27226e6587cad2fcf543f9711da3f3774e", "294b0c9619a0469a3b385b6fc47e79f64222a692", "fa84e9eecfff478df2d00e94deb3fc40fe4634ad" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:08:43 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 10:08:47 2009 +0200" }, "message": "Merge branches \u0027sched/domains\u0027 and \u0027sched/clock\u0027 into sched/core\n\nMerge reason: both topics are ready now, and we want to merge dependent\n changes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8f0dfc34e9b323a028c2ec41abb7e9de477b7a94", "tree": "fa7e44d9ad3eb22517f0724e71f9812f71a16ae2", "parents": [ "f14eff1cc2f418a7c5e23aedc6a1bdca3343b871" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Mon Jul 20 11:26:58 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 08:44:08 2009 +0200" }, "message": "sched: Provide iowait counters\n\nFor counting how long an application has been waiting for\n(disk) IO, there currently is only the HZ sample driven\ninformation available, while for all other counters in this\nclass, a high resolution version is available via\nCONFIG_SCHEDSTATS.\n\nIn order to make an improved bootchart tool possible, we also\nneed a higher resolution version of the iowait time.\n\nThis patch below adds this scheduler statistic to the kernel.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4A64B813.1080506@linux.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "84e9dabf6e6a78928c6a1a8ba235c9fb0908d0f8", "tree": "0487372b1476a6c546106a4389e3088aaa1f5261", "parents": [ "34d76c41554a05425613d16efebb3069c4c545f0" ], "author": { "name": "Anirban Sinha", "email": "ASinha@zeugmasystems.com", "time": "Fri Aug 28 22:40:43 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 15:51:16 2009 +0200" }, "message": "sched: Rename init_cfs_rq \u003d\u003e init_tg_cfs_rq\n\n... so that it does not share a common name with a function\nwithin the same scope.\n\nSigned-off-by: Anirban Sinha \u003casinha@zeugmasystems.com\u003e\nLKML-Reference: \u003cDDFD17CC94A9BD49A82147DDF7D545C501EA98A6@exchange.ZeugmaSystems.local\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "34d76c41554a05425613d16efebb3069c4c545f0", "tree": "a2c6551f169b1a7e27191098fa8e6acf7f2a76cd", "parents": [ "a8af7246c114bfd939e539f9566b872c06f6225c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Aug 27 13:08:56 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 08:26:49 2009 +0200" }, "message": "sched: Fix division by zero - really\n\nWhen re-computing the shares for each task group\u0027s cpu\nrepresentation we need the ratio of weight on each cpu vs the\ntotal weight of the sched domain.\n\nSince load-balancing is loosely (read not) synchronized, the\nweight of individual cpus can change between doing the sum and\ncalculating the ratio.\n\nThe previous patch dealt with only one of the race scenarios,\nthis patch side steps them all by saving a snapshot of all the\nindividual cpu weights, thereby always working on a consistent\nset.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: torvalds@linux-foundation.org\nCc: jes@sgi.com\nCc: jens.axboe@oracle.com\nCc: Balbir Singh \u003cbalbir@linux.vnet.ibm.com\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Yinghai Lu \u003cyinghai@kernel.org\u003e\nLKML-Reference: \u003c1251371336.18584.77.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d6714c22b43fbcbead7e7b706ff270e15f04a791", "tree": "1dc15e57d982351bed45b7b9768a118f86b88c19", "parents": [ "9f77da9f40045253e91f55c12d4481254b513d2d" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Sat Aug 22 13:56:46 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 23 10:32:37 2009 +0200" }, "message": "rcu: Renamings to increase RCU clarity\n\nMake RCU-sched, RCU-bh, and RCU-preempt be underlying\nimplementations, with \"RCU\" defined in terms of one of the\nthree. Update the outdated rcu_qsctr_inc() names, as these\nfunctions no longer increment anything.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: mathieu.desnoyers@polymtl.ca\nCc: josht@linux.vnet.ibm.com\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c12509746132696-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a8af7246c114bfd939e539f9566b872c06f6225c", "tree": "d624ea07739b92d3ff1a676a3244fd7188d8198f", "parents": [ "cde7e5ca4e329a157108769d1f752d191cbb71c6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Aug 21 13:58:54 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 21 14:15:10 2009 +0200" }, "message": "sched: Avoid division by zero\n\nPatch a5004278f0525dcb9aa43703ef77bf371ea837cd (sched: Fix\ncgroup smp fairness) introduced the possibility of a\ndivide-by-zero because load-balancing is not synchronized\nbetween sched_domains.\n\nThis can cause the state of cpus to change between the first\nand second loop over the sched domain in tg_shares_up().\n\nReported-by: Yinghai Lu \u003cyinghai@kernel.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Jes Sorensen \u003cjes@sgi.com\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nLKML-Reference: \u003c1250855934.7538.30.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cde7e5ca4e329a157108769d1f752d191cbb71c6", "tree": "654984be0202a0276af03379b0a48f2a809a4a27", "parents": [ "1314562a9ae5f39f6f595656023c1baf970831ef" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Tue Aug 18 13:01:01 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Aug 20 13:00:30 2009 +0200" }, "message": "sched: Use for_each_class macro in move_one_task()\n\nReplace for loop with the macro for_each_class to cleanup.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nLKML-Reference: \u003c4A8A277D.4090304@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "294b0c9619a0469a3b385b6fc47e79f64222a692", "tree": "cd4bac990239aa7c2fc5549bca43c2282ba362b8", "parents": [ "0601a88d8fa4508eaa49a6d96c6685e1dece38e3" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 13:02:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:45 2009 +0200" }, "message": "sched: Consolidate definition of variable sd in __build_sched_domains\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818110229.GM29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0601a88d8fa4508eaa49a6d96c6685e1dece38e3", "tree": "986cc76c135f45817a56291b8148bafac304bf09", "parents": [ "de616e36c700dc312d9021dd75f769c463f85122" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 13:01:11 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:44 2009 +0200" }, "message": "sched: Separate out build of NUMA sched groups from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818110111.GL29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "de616e36c700dc312d9021dd75f769c463f85122", "tree": "ca8cc9a8831ca4d0a7b82b9c53ac2dfce0025344", "parents": [ "86548096f252bfe2065f1ea2d301e7319a16375d" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 13:00:13 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:44 2009 +0200" }, "message": "sched: Separate out build of ALLNODES sched groups from __build_sched_domains\n\nFor the sake of completeness.\nNow all calls to init_sched_build_groups() are contained in\nbuild_sched_groups().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818110013.GK29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "86548096f252bfe2065f1ea2d301e7319a16375d", "tree": "ace19d728270cba803bf5d5704d59af6fa4627bd", "parents": [ "a2af04cdbb748158043e31799b28c48272081600" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:59:28 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:43 2009 +0200" }, "message": "sched: Separate out build of CPU sched groups from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105928.GJ29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a2af04cdbb748158043e31799b28c48272081600", "tree": "3a8e758141439c867ebe289b0731545977edf9b2", "parents": [ "0e8e85c941d8f1b43bcc2e3b8b7026cdae476c53" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:58:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:43 2009 +0200" }, "message": "sched: Separate out build of MC sched groups from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105838.GI29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0e8e85c941d8f1b43bcc2e3b8b7026cdae476c53", "tree": "2b9f50df17aeb9ed346a5b0c7f6ed98d38992623", "parents": [ "d81735355533cd4b2bce9508d86fcad24a38cf47" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:57:51 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:42 2009 +0200" }, "message": "sched: Separate out build of SMT sched groups from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105751.GH29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d81735355533cd4b2bce9508d86fcad24a38cf47", "tree": "6d32d76b1c89d0c279a001c1b76f55999ffb11f5", "parents": [ "410c408108bb85f32fe132aaf448388af0b6da64" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:57:03 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:42 2009 +0200" }, "message": "sched: Separate out build of SMT sched domain from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105703.GG29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "410c408108bb85f32fe132aaf448388af0b6da64", "tree": "25bd3896e7aea7f5b032a210fe5a9834a7b072d4", "parents": [ "87cce6622c2ab2f0e96ecc2a37133378a7db3177" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:56:14 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:41 2009 +0200" }, "message": "sched: Separate out build of MC sched domain from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105614.GF29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "87cce6622c2ab2f0e96ecc2a37133378a7db3177", "tree": "b4be2ff280b330b0050c27117aa69a7f19cfdaa8", "parents": [ "7f4588f3aa395632fec9ba2e15a1920f0682fda0" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:54:55 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:40 2009 +0200" }, "message": "sched: Separate out build of CPU sched domain from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105455.GE29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7f4588f3aa395632fec9ba2e15a1920f0682fda0", "tree": "b827a407ef4f509e80aa60bbc0b0eb0dcf8cf402", "parents": [ "2109b99ee192764b407dc7f52babb74740eea6f9" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:54:06 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:40 2009 +0200" }, "message": "sched: Separate out build of NUMA sched domain from __build_sched_domains\n\n... to further strip down __build_sched_domains().\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105406.GD29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2109b99ee192764b407dc7f52babb74740eea6f9", "tree": "a18bfe802e36669c2bd0150387d78d107c3071bb", "parents": [ "49a02c514d967921a908ac64e9c0ec0f0fc17fd8" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:53:00 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:39 2009 +0200" }, "message": "sched: Separate out allocation/free/goto-hell from __build_sched_domains\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105300.GC29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "49a02c514d967921a908ac64e9c0ec0f0fc17fd8", "tree": "2ec8a1719585c30ca37d8c0ec05cdec8f9d55f26", "parents": [ "df4ecf1524c7793de3121b2d4e5fc6bcc0da3bfb" ], "author": { "name": "Andreas Herrmann", "email": "andreas.herrmann3@amd.com", "time": "Tue Aug 18 12:51:52 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 18 18:35:39 2009 +0200" }, "message": "sched: Use structure to store local data in __build_sched_domains\n\nSigned-off-by: Andreas Herrmann \u003candreas.herrmann3@amd.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20090818105152.GB29515@alberich.amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fa08661af834875c9bd6f7f0b1b9388dc72a6585", "tree": "c381fcfcfeb38515bfa93445c80ad9231343414d", "parents": [ "240ebbf81f149b11a31e060ebe5ee51a3c775360", "64f1607ffbbc772685733ea63e6f7f4183df1b16" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 15 18:55:58 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 15 18:56:13 2009 +0200" }, "message": "Merge commit \u0027v2.6.31-rc6\u0027 into core/rcu\n\nMerge reason: the branch was on pre-rc1 .30, update to latest.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c", "tree": "04c93f391a1b65c8bf8d7ba8643c07d26c26590a", "parents": [ "a76761b621bcd8336065c4fe3a74f046858bc34c", "142d44b0dd6741a64a7bdbe029110e7c1dcf1d23" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Aug 14 14:41:02 2009 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Aug 14 14:45:31 2009 +0900" }, "message": "Merge branch \u0027percpu-for-linus\u0027 into percpu-for-next\n\nConflicts:\n\tarch/sparc/kernel/smp_64.c\n\tarch/x86/kernel/cpu/perf_counter.c\n\tarch/x86/kernel/setup_percpu.c\n\tdrivers/cpufreq/cpufreq_ondemand.c\n\tmm/percpu.c\n\nConflicts in core and arch percpu codes are mostly from commit\ned78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many\nnum_possible_cpus() with nr_cpu_ids. As for-next branch has moved all\nthe first chunk allocators into mm/percpu.c, the changes are moved\nfrom arch code to mm/percpu.c.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "a42548a18866e87092db93b771e6c5b060d78401", "tree": "897acf5794920ec9c6fd7f87af63908d0c1988f9", "parents": [ "d1e3b6d195770bd422e3229b88edfc154b6a27dd" ], "author": { "name": "Stanislaw Gruszka", "email": "sgruszka@redhat.com", "time": "Wed Jul 29 12:15:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 03 14:48:36 2009 +0200" }, "message": "cputime: Optimize jiffies_to_cputime(1)\n\nFor powerpc with CONFIG_VIRT_CPU_ACCOUNTING\njiffies_to_cputime(1) is not compile time constant and run time\ncalculations are quite expensive. To optimize we use\nprecomputed value. For all other architectures is is\npreprocessor definition.\n\nSigned-off-by: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nLKML-Reference: \u003c1248862529-6063-5-git-send-email-sgruszka@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f607c6685774811b8112e124f10a053d77015485", "tree": "4d32d967c8f8fb37ae09319735062a131a91725b", "parents": [ "98c33eddaf41d225d99b40f9eedbd0fac4c08c05" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Jul 20 19:16:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 15:41:34 2009 +0200" }, "message": "lockdep: Introduce lockdep_assert_held()\n\nAdd a lockdep helper to validate that we indeed are the owner\nof a lock.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "693525e3bea25cf2ee6cf2b862ba7c148e891df2", "tree": "7bb3ba6262c1adad1ffb8a52df9ff0924caec76a", "parents": [ "8f48894fcc89ddec62e1762f73a0825793e59e91" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Jul 21 13:56:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:26:15 2009 +0200" }, "message": "sched: Ensure the migration task doesn\u0027t go away during use\n\nLike sched_migrate_task(), set_cpus_allowed_ptr() should hold\nonto the migration thread too.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "00aec93d10a051ea64f83eff75d4065a19508ea6", "tree": "010148caeaf4d4b36188ba15828343aa6c74efc9", "parents": [ "3f029d3c6d62068d59301d90c18dbde8ee402107" ], "author": { "name": "Gregory Haskins", "email": "ghaskins@novell.com", "time": "Thu Jul 30 10:57:23 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:26:12 2009 +0200" }, "message": "sched: Fully integrate cpus_active_map and root-domain code\n\nReflect \"active\" cpus in the rq-\u003erd-\u003eonline field, instead of\nthe online_map.\n\nThe motivation is that things that use the root-domain code\n(such as cpupri) only care about cpus classified as \"active\"\nanyway. By synchronizing the root-domain state with the active\nmap, we allow several optimizations.\n\nFor instance, we can remove an extra cpumask_and from the\nscheduler hotpath by utilizing rq-\u003erd-\u003eonline (since it is now\na cached version of cpu_active_map \u0026 rq-\u003erd-\u003espan).\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090730145723.25226.24493.stgit@dev.haskins.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3f029d3c6d62068d59301d90c18dbde8ee402107", "tree": "c9c4e49bc0c8b919a81bf428180b9cffedbef389", "parents": [ "c3a2ae3d93c0f10d29c071f599764d00b8de00cb" ], "author": { "name": "Gregory Haskins", "email": "ghaskins@novell.com", "time": "Wed Jul 29 11:08:47 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:26:10 2009 +0200" }, "message": "sched: Enhance the pre/post scheduling logic\n\nWe currently have an explicit \"needs_post\" vtable method which\nreturns a stack variable for whether we should later run\npost-schedule. This leads to an awkward exchange of the\nvariable as it bubbles back up out of the context switch. Peter\nZijlstra observed that this information could be stored in the\nrun-queue itself instead of handled on the stack.\n\nTherefore, we revert to the method of having context_switch\nreturn void, and update an internal rq-\u003epost_schedule variable\nwhen we require further processing.\n\nIn addition, we fix a race condition where we try to access\ncurrent-\u003esched_class without holding the rq-\u003elock. This is\ntechnically racy, as the sched-class could change out from\nunder us. Instead, we reference the per-rq post_schedule\nvariable with the runqueue unlocked, but with preemption\ndisabled to see if we need to reacquire the rq-\u003elock.\n\nFinally, we clean the code up slightly by removing the #ifdef\nCONFIG_SMP conditionals from the schedule() call, and implement\nsome inline helper functions instead.\n\nThis patch passes checkpatch, and rt-migrate.\n\nSigned-off-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090729150422.17691.55590.stgit@dev.haskins.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "da19ab510343c6496fe8b8f890091296032025c9", "tree": "e7ec769249ccbb145a68ec7071c59088685c9926", "parents": [ "e709715915d69b6a929d77e7652c9c3fea61c317" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Jul 29 00:21:22 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:26:08 2009 +0200" }, "message": "sched: Check for pushing rt tasks after all scheduling\n\nThe current method for pushing RT tasks after scheduling only\nhappens after a context switch. But we found cases where a task\nis set up on a run queue to be pushed but the push never\nhappens because the schedule chooses the same task.\n\nThis bug was found with the help of Gregory Haskins and the use\nof ftrace (trace_printk). It tooks several days for both of us\nanalyzing the code and the trace output to find this.\n\nSigned-off-by: Steven Rostedt \u003csrostedt@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090729042526.205923666@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e709715915d69b6a929d77e7652c9c3fea61c317", "tree": "69ed9845b4b4c412cc17d59469e46ebb41de0c31", "parents": [ "a5004278f0525dcb9aa43703ef77bf371ea837cd" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Jun 03 15:41:20 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:26:07 2009 +0200" }, "message": "sched: Optimize unused cgroup configuration\n\nWhen cgroup group scheduling is built in, skip some code paths\nif we don\u0027t have any (but the root) cgroups configured.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a5004278f0525dcb9aa43703ef77bf371ea837cd", "tree": "d4beb94aa2e454a6d23425cac856654e507541a1", "parents": [ "8e9ed8b02490fea577b1eb1704c05bf43c891ed7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Jul 27 14:04:49 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:26:06 2009 +0200" }, "message": "sched: Fix cgroup smp fairness\n\nCommit ec4e0e2fe018992d980910db901637c814575914 (\"fix\ninconsistency when redistribute per-cpu tg-\u003ecfs_rq shares\")\nbroke cgroup smp fairness.\n\nIn order to avoid starvation of newly placed tasks, we never\nquite set the share of an empty cpu group-task to 0, but\ninstead we set it as if there\u0027s a single NICE-0 task present.\n\nIf however we actually set this in cfs_rq[cpu]-\u003eshares, that\nmeans the total shares for that group will be slightly inflated\nevery time we balance, causing the observed unfairness.\n\nFix this by setting cfs_rq[cpu]-\u003eshares to 0 but actually\nsetting the effective weight of the related se to the inflated\nnumber.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1248696557.6987.1615.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8e9ed8b02490fea577b1eb1704c05bf43c891ed7", "tree": "3c0cc5dd498abcf0cc894e85509c131a0dde9a43", "parents": [ "716a42348cdaf04534b15fbdc9c83e25baebfed5", "07903af152b0597d94e9b0030746b63c4664e787" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:11:26 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Aug 02 14:23:57 2009 +0200" }, "message": "Merge branch \u0027sched/urgent\u0027 into sched/core\n\nMerge reason: avoid upcoming patch conflict.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a004cd42181409eda70804ded240a791f4564d61", "tree": "dda56f65f1fc420ec9aadfaed2f18695a30c5d3c", "parents": [ "def01bc53d03881acfc393bd10a5c7575187e008" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Jul 21 09:54:05 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Jul 24 09:41:35 2009 +0200" }, "message": "sched: Fix return value of migration_init()\n\nmigration_init() returns the return value of the hotplug notifier. In\nthe success case this is NOTIFY_OK which is 1. initcall_debug\nevaluates that as an error code because init calls are expected to\nreturn 0 on success.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "613afbf83298efaead05ebcac23d2285609d7160", "tree": "15fa2025d74cee5f6805ab974c532c6b6a603333", "parents": [ "6f80bd985fe242c2e6a8b6209ed20b0495d3d63b" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 16 15:44:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:51:44 2009 +0200" }, "message": "sched: Pull up the might_sleep() check into cond_resched()\n\nmight_sleep() is called late-ish in cond_resched(), after the\nneed_resched()/preempt enabled/system running tests are\nchecked.\n\nIt\u0027s better to check the sleeps while atomic earlier and not\ndepend on some environment datas that reduce the chances to\ndetect a problem.\n\nAlso define cond_resched_*() helpers as macros, so that the\nFILE/LINE reported in the sleeping while atomic warning\ndisplays the real origin and not sched.h\n\nChanges in v2:\n\n - Call __might_sleep() directly instead of might_sleep() which\n may call cond_resched()\n\n - Turn cond_resched() into a macro so that the file:line\n couple reported refers to the caller of cond_resched() and\n not __cond_resched() itself.\n\nChanges in v3:\n\n - Also propagate this __might_sleep() pull up to\n cond_resched_lock() and cond_resched_softirq()\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1247725694-6082-6-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e4aafea2d4bde8b44d6500c4ee7195bbfc51269e", "tree": "bf0c9df18b9f63bb10da0096d81ba80712a71665", "parents": [ "e09758fae8ccde97e026c704319eaa18d488dc86" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 16 15:44:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:51:42 2009 +0200" }, "message": "sched: Add a preempt count base offset to __might_sleep()\n\nAdd a preempt count base offset to compare against the current\npreempt level count. It prepares to pull up the might_sleep\ncheck from cond_resched() to cond_resched_lock() and\ncond_resched_bh().\n\nFor these two helpers, we need to respectively ensure that once\nwe\u0027ll unlock the given spinlock / reenable local softirqs, we\nwill reach a sleepable state.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n[ Move and rename preempt_count_equals() ]\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1247725694-6082-4-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e09758fae8ccde97e026c704319eaa18d488dc86", "tree": "b2605cb49f9ac5a5d723cde13e14b5380ef9ed86", "parents": [ "4b2155678d7cc7b5f45d6b36049091376c3408a2" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 16 15:44:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:51:41 2009 +0200" }, "message": "sched: Cover the CONFIG_DEBUG_SPINLOCK_SLEEP off-case for __might_sleep()\n\nCover the off case for __might_sleep(), so that we avoid\n#ifdefs in files that make use of it. Especially, this prepares\nfor the __might_sleep() pull up on cond_resched().\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1247725694-6082-3-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4b2155678d7cc7b5f45d6b36049091376c3408a2", "tree": "dda992c4e008f67e918e5e7b75134c8d5d76d4fb", "parents": [ "e7aaaa6934636d7a6cadd9e2a05250fbb6a34f65" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 16 15:44:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:51:39 2009 +0200" }, "message": "sched: Remove obsolete comment in __cond_resched()\n\nRemove the outdated comment from __cond_resched() related to\nthe now removed Big Kernel Semaphore.\n\nReported-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1247725694-6082-2-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e7aaaa6934636d7a6cadd9e2a05250fbb6a34f65", "tree": "8eabe708f83346910eb9a6c539d85d7b8f29b396", "parents": [ "5304d5fc74a269cc6c3e70f9713684ca729abdf0" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Thu Jul 16 15:44:29 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:51:38 2009 +0200" }, "message": "sched: Drop the need_resched() loop from cond_resched()\n\nThe schedule() function is a loop that reschedules the current\ntask while the TIF_NEED_RESCHED flag is set:\n\nvoid schedule(void)\n{\nneed_resched:\n\t/* schedule code */\n\tif (need_resched())\n\t\tgoto need_resched;\n}\n\nAnd cond_resched() repeat this loop:\n\ndo {\n\tadd_preempt_count(PREEMPT_ACTIVE);\n\tschedule();\n\tsub_preempt_count(PREEMPT_ACTIVE);\n} while(need_resched());\n\nThis loop is needless because schedule() already did the check\nand nothing can set TIF_NEED_RESCHED between schedule() exit\nand the loop check in need_resched().\n\nThen remove this needless loop.\n\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1247725694-6082-1-git-send-email-fweisbec@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5304d5fc74a269cc6c3e70f9713684ca729abdf0", "tree": "6a5db62915abd260241a2b9aee34086c93293ca6", "parents": [ "54d35f29f49224d86b994acb6e5969b9ba09022d", "78af08d90b8f745044b1274430bc4bc6b2b27aca" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:50:22 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Jul 18 15:50:40 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into sched/core\n\nMerge reason: branch had an old upstream base (-rc1-ish), but also\n merge to avoid a conflict.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a468d389349a7560249b355cdb6d2097ea1616c9", "tree": "f385d5847644dfdde3fb441b8e4430ac9024d0ab", "parents": [ "54fdc5816631b43ba55fc3206d7add2d85850bc6" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Jul 17 14:15:46 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sat Jul 18 14:19:52 2009 +0200" }, "message": "sched: fix load average accounting vs. cpu hotplug\n\nThe new load average code clears rq-\u003ecalc_load_active on\nCPU_ONLINE. That\u0027s wrong as the new onlined CPU might have got a\nscheduler tick already and accounted the delta to the stale value of\nthe time we offlined the CPU.\n\nClear the value when we cleanup the dead CPU instead. \n\nAlso move the update of the calc_load_update time for the newly online\nCPU to CPU_UP_PREPARE to avoid that the CPU plays catch up with the\nstale update time value.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "4b0a84043e0c14088958fddb62f416d050368011", "tree": "cf5df6cef66a178c35e335240a756798caf2c399", "parents": [ "63f7a330014ad29b662638caabd8e96fe945b9ed", "d07387b490b1c43bfcb9f3900faf96f2dafb2630" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 16 10:18:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 16 10:18:29 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched:\n sched: Fix bug in SCHED_IDLE interaction with group scheduling\n sched: Fix rt_rq-\u003epushable_tasks initialization in init_rt_rq()\n sched: Reset sched stats on fork()\n sched_rt: Fix overload bug on rt group scheduling\n sched: Documentation/sched-rt-group: Fix style issues \u0026 bump version\n" }, { "commit": "d86ee4809d0329d4aa0d0f2c76c2295a16862799", "tree": "32b3eaf766c1127ef2298c2e48b5441b7cf9b843", "parents": [ "c99e6efe1ba04561e7d93a81f0be07e37427e835" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jul 10 14:57:57 2009 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 10 14:24:05 2009 -0700" }, "message": "sched: optimize cond_resched()\n\nOptimize cond_resched() by removing one conditional.\n\nCurrently cond_resched() checks system_state \u003d\u003d\nSYSTEM_RUNNING in order to avoid scheduling before the\nscheduler is running.\n\nWe can however, as per suggestion of Matt, use\nPREEMPT_ACTIVE to accomplish that very same.\n\nSuggested-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c20b08e3986c2dbfa6df1e880bf4f7159994d199", "tree": "ea539701a3cf78b8e2f1d2aab2a2ec442d00f690", "parents": [ "7793527b90d9418211f4fe8464cc1dcb1631ea1b" ], "author": { "name": "Fabio Checconi", "email": "fchecconi@gmail.com", "time": "Mon Jun 15 20:56:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 10 10:43:30 2009 +0200" }, "message": "sched: Fix rt_rq-\u003epushable_tasks initialization in init_rt_rq()\n\ninit_rt_rq() initializes only rq-\u003ert.pushable_tasks, and not the\npushable_tasks field of the passed rt_rq. The plist is not used\nuninitialized since the only pushable_tasks plists used are the\nones of root rt_rqs; anyway reinitializing the list on every group\ncreation corrupts the root plist, losing its previous contents.\n\nSigned-off-by: Fabio Checconi \u003cfabio@gandalf.sssup.it\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090615185638.GK21741@gandalf.sssup.it\u003e\nCC: Gregory Haskins \u003cghaskins@novell.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7793527b90d9418211f4fe8464cc1dcb1631ea1b", "tree": "a09cdbe3942d9ba22877976737a220f9aaac2a04", "parents": [ "a1ba4d8ba9f06a397e97cbd67a93ee306860b40a" ], "author": { "name": "Lucas De Marchi", "email": "lucas.de.marchi@gmail.com", "time": "Thu Jul 09 13:57:20 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 10 10:43:29 2009 +0200" }, "message": "sched: Reset sched stats on fork()\n\nThe sched_stat fields are currently not reset upon fork.\nIngo\u0027s recent commit 6c594c21fcb02c662f11c97be4d7d2b73060a205\ndid reset nr_migrations, but it didn\u0027t reset any of the\nothers.\n\nThis patch resets all sched_stat fields on fork.\n\nSigned-off-by: Lucas De Marchi \u003clucas.de.marchi@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c193b0f820907090457s7a3662f4gcdecdc22fcae857b@mail.gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a1ba4d8ba9f06a397e97cbd67a93ee306860b40a", "tree": "f0e0f92a2c0763f8ec162c2b0e2abc389075b207", "parents": [ "d4ec36bac3de39b7e10ec8f42fbdd20d9a9ed753" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed Apr 01 18:40:15 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 10 10:43:29 2009 +0200" }, "message": "sched_rt: Fix overload bug on rt group scheduling\n\nFixes an easily triggerable BUG() when setting process affinities.\n\nMake sure to count the number of migratable tasks in the same place:\nthe root rt_rq. Otherwise the number doesn\u0027t make sense and we\u0027ll hit\nthe BUG in set_cpus_allowed_rt().\n\nAlso, make sure we only count tasks, not groups (this is probably\nalready taken care of by the fact that rt_se-\u003enr_cpus_allowed will be 0\nfor groups, but be more explicit)\n\nTested-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCC: stable@kernel.org\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Gregory Haskins \u003cghaskins@novell.com\u003e\nLKML-Reference: \u003c1247067476.9777.57.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "03b042bf1dc14a268a3d65d38b4ec2a4261e8477", "tree": "10e422a1396087d14cec164d8f4962d7ce8bcf2d", "parents": [ "c17ef45342cc033fdf7bdd5b28615e0090f8d2e7" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu Jun 25 09:08:16 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 03 10:02:28 2009 +0200" }, "message": "rcu: Add synchronize_sched_expedited() primitive\n\nThis adds the synchronize_sched_expedited() primitive that\nimplements the \"big hammer\" expedited RCU grace periods.\n\nThis primitive is placed in kernel/sched.c rather than\nkernel/rcupdate.c due to its need to interact closely with the\nmigration_thread() kthread.\n\nThe idea is to wake up this kthread with req-\u003etask set to NULL,\nin response to which the kthread reports the quiescent state\nresulting from the kthread having been scheduled.\n\nBecause this patch needs to fallback to the slow versions of\nthe primitives in response to some races with CPU onlining and\nofflining, a new synchronize_rcu_bh() primitive is added as\nwell.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: akpm@linux-foundation.org\nCc: torvalds@linux-foundation.org\nCc: davem@davemloft.net\nCc: dada1@cosmosbay.com\nCc: zbr@ioremap.net\nCc: jeff.chua.linux@gmail.com\nCc: paulus@samba.org\nCc: laijs@cn.fujitsu.com\nCc: jengelh@medozas.de\nCc: r000n@r000n.net\nCc: benh@kernel.crashing.org\nCc: mathieu.desnoyers@polymtl.ca\nLKML-Reference: \u003c12459460982947-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "54d35f29f49224d86b994acb6e5969b9ba09022d", "tree": "e50a3c51e4c38c6e726275ceeaee1d581cd04a89", "parents": [ "348b346b238d9c0e5694c8d0b835a099cb383835" ], "author": { "name": "Hitoshi Mitake", "email": "mitake@dcl.info.waseda.ac.jp", "time": "Mon Jun 29 14:44:57 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jun 29 09:19:27 2009 +0200" }, "message": "sched: Hide runqueues from direct reference at source code level for __raw_get_cpu_var()\n\nHide __raw_get_cpu_var() as well - thus all the direct\nreferences to runqueues will abstracted out.\n\nSigned-off-by: Hitoshi Mitake \u003cmitake@dcl.info.waseda.ac.jp\u003e\nLKML-Reference: \u003c20090629.144457.886429910353660979.mitake@dcl.info.waseda.ac.jp\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "348b346b238d9c0e5694c8d0b835a099cb383835", "tree": "967d9c72a1d6d33a408a1ff0d732296dbe8d3674", "parents": [ "6c697bdf08a09ce461e305a22362973036e95db3", "52989765629e7d182b4f146050ebba0abf2cb0b7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jun 29 09:16:13 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jun 29 09:16:25 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into sched/core\n\nMerge reason: we will merge a dependent patch.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b9bf3121af348d9255f1c917830fe8c2df52efcb", "tree": "477f93b1000d7ac4bd283ee75d632b107eaf9600", "parents": [ "204fba4aa303ea4a7bb726a539bf4a5b9e3203d0" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Jun 24 15:13:47 2009 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Jun 24 15:13:47 2009 +0900" }, "message": "percpu: use DEFINE_PER_CPU_SHARED_ALIGNED()\n\nThere are a few places where ___cacheline_aligned* is used with\nDEFINE_PER_CPU(). Use DEFINE_PER_CPU_SHARED_ALIGNED() instead.\n\nDEFINE_PER_CPU_SHARED_ALIGNED() applies alignment only on SMPs. While\nall other converted places used _in_smp variant or only get compiled\nfor SMP, net/rds used unconditional ____cacheline_aligned. I don\u0027t\nsee any reason these data structures should be aligned on UP and thus\nconverted together.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Andy Grover \u003candy.grover@oracle.com\u003e\n" } ], "next": "12e24f34cb0d55efd08c18b2112507d4bf498008" }