)]}' { "log": [ { "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" }, { "commit": "12e24f34cb0d55efd08c18b2112507d4bf498008", "tree": "83b07be17b8ef45f42360a3b9159b3aaae3fbad4", "parents": [ "1eb51c33b21ffa3fceb634d1d6bcd6488c79bc26", "eadc84cc01e04f9f74ec2de0c9355be035c7b396" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jun 20 11:29:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jun 20 11:29:32 2009 -0700" }, "message": "Merge branch \u0027perfcounters-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (49 commits)\n perfcounter: Handle some IO return values\n perf_counter: Push perf_sample_data through the swcounter code\n perf_counter tools: Define and use our own u64, s64 etc. definitions\n perf_counter: Close race in perf_lock_task_context()\n perf_counter, x86: Improve interactions with fast-gup\n perf_counter: Simplify and fix task migration counting\n perf_counter tools: Add a data file header\n perf_counter: Update userspace callchain sampling uses\n perf_counter: Make callchain samples extensible\n perf report: Filter to parent set by default\n perf_counter tools: Handle lost events\n perf_counter: Add event overlow handling\n fs: Provide empty .set_page_dirty() aop for anon inodes\n perf_counter: tools: Makefile tweaks for 64-bit powerpc\n perf_counter: powerpc: Add processor back-end for MPC7450 family\n perf_counter: powerpc: Make powerpc perf_counter code safe for 32-bit kernels\n perf_counter: powerpc: Change how processor-specific back-ends get selected\n perf_counter: powerpc: Use unsigned long for register and constraint values\n perf_counter: powerpc: Enable use of software counters on 32-bit powerpc\n perf_counter tools: Add and use isprint()\n ...\n" }, { "commit": "1eb51c33b21ffa3fceb634d1d6bcd6488c79bc26", "tree": "5360e0b439b35a97313ea8250209e7dacff8b9a6", "parents": [ "b0b7065b64fe517b4a50915a1555e8ee98890d64", "3104bf03a923c72043a9c5009d9cd56724304916" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jun 20 10:57:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jun 20 10:57:40 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 out of scope variable access in sched_slice()\n sched: Hide runqueues from direct refer at source code level\n sched: Remove unneeded __ref tag\n sched, x86: Fix cpufreq + sched_clock() TSC scaling\n" }, { "commit": "e5289d4a181fb6c0b7a7607649af2ffdc491335c", "tree": "6c9e9ab46a29c538e4c505d3d3cd135265db08a2", "parents": [ "f5970550d5ccf90453cbd7d260370ea99d1f6513" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 19 13:22:51 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jun 19 13:43:12 2009 +0200" }, "message": "perf_counter: Simplify and fix task migration counting\n\nThe task migrations counter was causing rare and hard to decypher\nmemory corruptions under load. After a day of debugging and bisection\nwe found that the problem was introduced with:\n\n 3f731ca: perf_counter: Fix cpu migration counter\n\nTurning them off fixes the crashes. Incidentally, the whole\nperf_counter_task_migration() logic can be done simpler as well,\nby injecting a proper sw-counter event.\n\nThis cleanup also fixed the crashes. The precise failure mode is\nnot completely clear yet, but we are clearly not unhappy about\nhaving a fix ;-)\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Marcelo Tosatti \u003cmtosatti@redhat.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "371cbb387e33651b4c1326457116568ff01ac422", "tree": "4678d02d44fc9764f316e5d84e5d307cc14a0923", "parents": [ "63706172f332fd3f6e7458ebfb35fa6de9c21dc5" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed Jun 17 16:27:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 18 13:03:54 2009 -0700" }, "message": "kthreads: simplify migration_thread() exit path\n\nNow that kthread_stop() can be used even if the task has already exited,\nwe can kill the \"wait_to_die:\" loop in migration_thread(). But we must\npin rq-\u003emigration_thread after creation.\n\nActually, I don\u0027t think CPU_UP_CANCELED or CPU_DEAD should wait for\n-\u003emigration_thread exit. Perhaps we can simplify this code a bit more.\nmigration_call() can set -\u003eshould_stop and forget about this thread. But\nwe need a new helper in kthred.c for that.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Vitaliy Gusev \u003cvgusev@openvz.org\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6c697bdf08a09ce461e305a22362973036e95db3", "tree": "76f17d2a7786969780bebeb83d1d5d3290ae8120", "parents": [ "b9dc29e72fd3dc2a739ce8eafd958220d0745734" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Jun 17 10:48:02 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 17 18:34:18 2009 +0200" }, "message": "sched: Add SCHED_RESET_ON_FORK functionality for nice \u003c 0 tasks\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Lennart Poettering \u003cmzxreary@0pointer.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c1245228482.27326.1.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b9dc29e72fd3dc2a739ce8eafd958220d0745734", "tree": "4d9c9130be87a7a876dd623a4ca8891b1232ae41", "parents": [ "ca94c442535a44d508c99a77e54f21a59f4fc462" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Jun 17 10:46:01 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 17 18:34:17 2009 +0200" }, "message": "sched: Clean up SCHED_RESET_ON_FORK\n\nMake SCHED_RESET_ON_FORK sched_fork() bits a self-contained unlikely code path.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Lennart Poettering \u003cmzxreary@0pointer.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c1245228361.18329.6.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fd5e1b5dbaa8b4aacc0e251d74182eda37062194", "tree": "cba4e780784649fe9c9535b8d5ac1617f52e1a15", "parents": [ "84599f8a59e77699f18f06948cea171a349a3f0f" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Jun 15 13:34:19 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jun 17 16:08:04 2009 +0200" }, "message": "sched: Remove unneeded __ref tag\n\nThose two functions no longer call alloc_bootmmem_cpumask_var(),\nso no need to tag them with __init_refok.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nLKML-Reference: \u003c4A35DD5B.9050106@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "19035e5b5d1e3127b4925d86f6a77964f91f2c3c", "tree": "c9e7e9073970176a5b0970da715cb6430c3c9069", "parents": [ "f9db6e095115f9411b9647bdb9d81fe11f3d8b54", "eea08f32adb3f97553d49a4f79a119833036000a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 15 10:06:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jun 15 10:06:19 2009 -0700" }, "message": "Merge branch \u0027timers-for-linus-migration\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-for-linus-migration\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n timers: Logic to move non pinned timers\n timers: /proc/sys sysctl hook to enable timer migration\n timers: Identifying the existing pinned timers\n timers: Framework for identifying pinned timers\n timers: allow deferrable timers for intervals tv2-tv5 to be deferred\n\nFix up conflicts in kernel/sched.c and kernel/timer.c manually\n" }, { "commit": "ca94c442535a44d508c99a77e54f21a59f4fc462", "tree": "5dda78242ed00f035e033ebd1f29200303b92b10", "parents": [ "45e3e1935e2857c54783291107d33323b3ef33c8" ], "author": { "name": "Lennart Poettering", "email": "lennart@poettering.net", "time": "Mon Jun 15 17:17:47 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jun 15 17:31:59 2009 +0200" }, "message": "sched: Introduce SCHED_RESET_ON_FORK scheduling policy flag\n\nThis patch introduces a new flag SCHED_RESET_ON_FORK which can be passed\nto the kernel via sched_setscheduler(), ORed in the policy parameter. If\nset this will make sure that when the process forks a) the scheduling\npriority is reset to DEFAULT_PRIO if it was higher and b) the scheduling\npolicy is reset to SCHED_NORMAL if it was either SCHED_FIFO or SCHED_RR.\n\nWhy have this?\n\nCurrently, if a process is real-time scheduled this will \u0027leak\u0027 to all\nits child processes. For security reasons it is often (always?) a good\nidea to make sure that if a process acquires RT scheduling this is\nconfined to this process and only this process. More specifically this\nmakes the per-process resource limit RLIMIT_RTTIME useful for security\npurposes, because it makes it impossible to use a fork bomb to\ncircumvent the per-process RLIMIT_RTTIME accounting.\n\nThis feature is also useful for tools like \u0027renice\u0027 which can then\nchange the nice level of a process without having this spill to all its\nchild processes.\n\nWhy expose this via sched_setscheduler() and not other syscalls such as\nprctl() or sched_setparam()?\n\nprctl() does not take a pid parameter. Due to that it would be\nimpossible to modify this flag for other processes than the current one.\n\nThe struct passed to sched_setparam() can unfortunately not be extended\nwithout breaking compatibility, since sched_setparam() lacks a size\nparameter.\n\nHow to use this from userspace? In your RT program simply replace this:\n\n sched_setscheduler(pid, SCHED_FIFO, \u0026param);\n\nby this:\n\n sched_setscheduler(pid, SCHED_FIFO|SCHED_RESET_ON_FORK, \u0026param);\n\nSigned-off-by: Lennart Poettering \u003clennart@poettering.net\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20090615152714.GA29092@tango.0pointer.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b43e352139f51216a8c56b0bd5fc3d4e05c65619", "tree": "f7766a7d5dc21e424bc914c99e03a4816a35d78a", "parents": [ "f7027c6387d0c3acf569845165ec7947e2083c82" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Fri Jun 12 22:27:00 2009 -0600" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Fri Jun 12 22:27:01 2009 +0930" }, "message": "sched: export kick_process\n\nlguest needs kick_process: wake_up_process() does nothing if a process\nis running, which isn\u0027t sufficient (we need it in the kernel).\n\nAnd lguest support is usually modular.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8a1ca8cedd108c8e76a6ab34079d0bbb4f244799", "tree": "636c715524f1718599209cc289908ea44b6cb859", "parents": [ "b640f042faa2a2fad6464f259a8afec06e2f6386", "940010c5a314a7bd9b498593bc6ba1718ac5aec5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 14:01:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 14:01:07 2009 -0700" }, "message": "Merge branch \u0027perfcounters-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (574 commits)\n perf_counter: Turn off by default\n perf_counter: Add counter-\u003eid to the throttle event\n perf_counter: Better align code\n perf_counter: Rename L2 to LL cache\n perf_counter: Standardize event names\n perf_counter: Rename enums\n perf_counter tools: Clean up u64 usage\n perf_counter: Rename perf_counter_limit sysctl\n perf_counter: More paranoia settings\n perf_counter: powerpc: Implement generalized cache events for POWER processors\n perf_counters: powerpc: Add support for POWER7 processors\n perf_counter: Accurate period data\n perf_counter: Introduce struct for sample data\n perf_counter tools: Normalize data using per sample period data\n perf_counter: Annotate exit ctx recursion\n perf_counter tools: Propagate signals properly\n perf_counter tools: Small frequency related fixes\n perf_counter: More aggressive frequency adjustment\n perf_counter/x86: Fix the model number of Intel Core2 processors\n perf_counter, x86: Correct some event and umask values for Intel processors\n ...\n" }, { "commit": "0fb530291621c8b8a1b16abeeab05d9262489f71", "tree": "4b5fbb1781b279caf9cd20fb1ef5d04028548f43", "parents": [ "4bdddf8ff9bbb8aa7b4d7847586202bd25842c90" ], "author": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Thu Jun 11 08:41:22 2009 +0300" }, "committer": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Thu Jun 11 19:27:12 2009 +0300" }, "message": "sched: use slab in cpupri_init()\n\nLets not use the bootmem allocator in cpupri_init() as slab is already up when\nit is run.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Yinghai Lu \u003cyinghai@kernel.org\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\n" }, { "commit": "4bdddf8ff9bbb8aa7b4d7847586202bd25842c90", "tree": "b1ba7c6fcb1d6cd4d7260cbcea459ad75ba0b095", "parents": [ "959982fee4e635c61780e989c3e34267143fcc02" ], "author": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Thu Jun 11 08:35:27 2009 +0300" }, "committer": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Thu Jun 11 19:27:11 2009 +0300" }, "message": "sched: use alloc_cpumask_var() instead of alloc_bootmem_cpumask_var()\n\nSlab is initialized when sched_init() runs now so lets use alloc_cpumask_var().\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Yinghai Lu \u003cyinghai@kernel.org\u003e\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\n" }, { "commit": "36b7b6d465489c4754c4fd66fcec6086eba87896", "tree": "b24eb922eea26181157c7e99047933d3df08ecfb", "parents": [ "444f478f65c7ca4606f9965b31feed13fe2bc9fa" ], "author": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Wed Jun 10 23:42:36 2009 +0300" }, "committer": { "name": "Pekka Enberg", "email": "penberg@cs.helsinki.fi", "time": "Thu Jun 11 19:27:04 2009 +0300" }, "message": "sched: use kzalloc() instead of the bootmem allocator\n\nNow that kmem_cache_init() happens before sched_init(), we should use kzalloc()\nand not the bootmem allocator.\n\nSigned-off-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\n" }, { "commit": "940010c5a314a7bd9b498593bc6ba1718ac5aec5", "tree": "d141e08ced08c40c6a8e3ab2cdecde5ff14e560f", "parents": [ "8dc8e5e8bc0ce00b0f656bf972f67cd8a72759e5", "991ec02cdca33b03a132a0cacfe6f0aa0be9aa8d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 11 17:55:42 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jun 11 17:55:42 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into perfcounters/core\n\nConflicts:\n\tarch/x86/kernel/irqinit.c\n\tarch/x86/kernel/irqinit_64.c\n\tarch/x86/kernel/traps.c\n\tarch/x86/mm/fault.c\n\tinclude/linux/sched.h\n\tkernel/exit.c\n" }, { "commit": "862366118026a358882eefc70238dbcc3db37aac", "tree": "4eb62bc10327a5afac064a95a091ea05ecd2acc1", "parents": [ "57eee9ae7bbcfb692dc96c739a5184adb6349733", "511b01bdf64ad8a38414096eab283c7784aebfc4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:53:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 19:53:40 2009 -0700" }, "message": "Merge branch \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (244 commits)\n Revert \"x86, bts: reenable ptrace branch trace support\"\n tracing: do not translate event helper macros in print format\n ftrace/documentation: fix typo in function grapher name\n tracing/events: convert block trace points to TRACE_EVENT(), fix !CONFIG_BLOCK\n tracing: add protection around module events unload\n tracing: add trace_seq_vprint interface\n tracing: fix the block trace points print size\n tracing/events: convert block trace points to TRACE_EVENT()\n ring-buffer: fix ret in rb_add_time_stamp\n ring-buffer: pass in lockdep class key for reader_lock\n tracing: add annotation to what type of stack trace is recorded\n tracing: fix multiple use of __print_flags and __print_symbolic\n tracing/events: fix output format of user stack\n tracing/events: fix output format of kernel stack\n tracing/trace_stack: fix the number of entries in the header\n ring-buffer: discard timestamps that are at the start of the buffer\n ring-buffer: try to discard unneeded timestamps\n ring-buffer: fix bug in ring_buffer_discard_commit\n ftrace: do not profile functions when disabled\n tracing: make trace pipe recognize latency format flag\n ...\n" }, { "commit": "be15f9d63b97da0065187696962331de6cd9de9e", "tree": "cc85c72e92afccfdcdfa851c4694a93f4ea22b84", "parents": [ "595dc54a1da91408a52c4b962f3deeb1109aaca0", "a789ed5fb6d0256c4177c2cc27e06520ddbe4d4c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:16:27 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jun 10 16:16:27 2009 -0700" }, "message": "Merge branch \u0027x86-xen-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-xen-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (42 commits)\n xen: cache cr0 value to avoid trap\u0027n\u0027emulate for read_cr0\n xen/x86-64: clean up warnings about IST-using traps\n xen/x86-64: fix breakpoints and hardware watchpoints\n xen: reserve Xen start_info rather than e820 reserving\n xen: add FIX_TEXT_POKE to fixmap\n lguest: update lazy mmu changes to match lguest\u0027s use of kvm hypercalls\n xen: honour VCPU availability on boot\n xen: add \"capabilities\" file\n xen: drop kexec bits from /sys/hypervisor since kexec isn\u0027t implemented yet\n xen/sys/hypervisor: change writable_pt to features\n xen: add /sys/hypervisor support\n xen/xenbus: export xenbus_dev_changed\n xen: use device model for suspending xenbus devices\n xen: remove suspend_cancel hook\n xen/dev-evtchn: clean up locking in evtchn\n xen: export ioctl headers to userspace\n xen: add /dev/xen/evtchn driver\n xen: add irq_from_evtchn\n xen: clean up gate trap/interrupt constants\n xen: set _PAGE_NX in __supported_pte_mask before pagetable construction\n ...\n" } ], "next": "082b63ae45e7d14e15995dedd782ec7344596fb2" }