)]}' { "log": [ { "commit": "483e3cd6a34ad2d7e41100bc1b98614ac42a4567", "tree": "ef544ccdd1e95991c32fd8b656714583b7398371", "parents": [ "774a694f8cd08115d130a290d73c6d8563f26b1b", "d28daf923ac5e4a0d7cecebae56f3e339189366b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:24:03 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:24:03 2009 -0700" }, "message": "Merge branch \u0027tracing-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (105 commits)\n ring-buffer: only enable ring_buffer_swap_cpu when needed\n ring-buffer: check for swapped buffers in start of committing\n tracing: report error in trace if we fail to swap latency buffer\n tracing: add trace_array_printk for internal tracers to use\n tracing: pass around ring buffer instead of tracer\n tracing: make tracing_reset safe for external use\n tracing: use timestamp to determine start of latency traces\n tracing: Remove mentioning of legacy latency_trace file from documentation\n tracing/filters: Defer pred allocation, fix memory leak\n tracing: remove users of tracing_reset\n tracing: disable buffers and synchronize_sched before resetting\n tracing: disable update max tracer while reading trace\n tracing: print out start and stop in latency traces\n ring-buffer: disable all cpu buffers when one finds a problem\n ring-buffer: do not count discarded events\n ring-buffer: remove ring_buffer_event_discard\n ring-buffer: fix ring_buffer_read crossing pages\n ring-buffer: remove unnecessary cpu_relax\n ring-buffer: do not swap buffers during a commit\n ring-buffer: do not reset while in a commit\n ...\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": "4f0ac854167846bd55cd81dbc9a36e03708aa01c", "tree": "0eb34d18a667f8e68ad9255f791560b028fed2a6", "parents": [ "b9356c53ba2f593081e5aa45eb67adcce243d1c0", "6b58e7f146f8d79c08f62087f928e1f01747de71" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:22:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:22:43 2009 -0700" }, "message": "Merge branch \u0027perfcounters-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perfcounters-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (60 commits)\n perf tools: Avoid unnecessary work in directory lookups\n perf stat: Clean up statistics calculations a bit more\n perf stat: More advanced variance computation\n perf stat: Use stddev_mean in stead of stddev\n perf stat: Remove the limit on repeat\n perf stat: Change noise calculation to use stddev\n x86, perf_counter, bts: Do not allow kernel BTS tracing for now\n x86, perf_counter, bts: Correct pointer-to-u64 casts\n x86, perf_counter, bts: Fail if BTS is not available\n perf_counter: Fix output-sharing error path\n perf trace: Fix read_string()\n perf trace: Print out in nanoseconds\n perf tools: Seek to the end of the header area\n perf trace: Fix parsing of perf.data\n perf trace: Sample timestamps as well\n perf_counter: Introduce new (non-)paranoia level to allow raw tracepoint access\n perf trace: Sample the CPU too\n perf tools: Work around strict aliasing related warnings\n perf tools: Clean up warnings list in the Makefile\n perf tools: Complete support for dynamic strings\n ...\n" }, { "commit": "d90a7e86401ffea2163a4337f3a47f3909c4e255", "tree": "afe3d4aa24849c561bb1e6c04c4c54808cbedb47", "parents": [ "12a499612e1ff439bdad240c7f86c55366941d4d", "4dbc9ca219b0f294332e734528f7b82211700170" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:21:31 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:21:31 2009 -0700" }, "message": "Merge branch \u0027irq-threaded-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027irq-threaded-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n genirq: Do not mask oneshot edge type interrupts\n genirq: Support nested threaded irq handling\n genirq: Add buslock support\n genirq: Add oneshot support\n" }, { "commit": "12a499612e1ff439bdad240c7f86c55366941d4d", "tree": "9fd218631e0c8c26a5ffc41ebce1d65f8e826339", "parents": [ "eee2775d9924b22643bd89b2e568cc5eed7e8a04", "70590ea75b7f9ef4846b0b0f4400e8338dbcc7eb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:20:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:20:42 2009 -0700" }, "message": "Merge branch \u0027irq-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027irq-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n pci/intr_remapping: Allocate irq_iommu on node\n irq: Add irq_node() primitive\n irq: Make sure irq_desc for legacy irq get correct node setting\n genirq: Add prototype for handle_nested_irq()\n irq: Remove superfluous NULL pointer check in check_irq_resend()\n irq: Clean up by removing irqfixup MODULE_PARM_DESC()\n genirq: Fix comment describing suspend_device_irqs()\n genirq: Remove obsolete defines and typedefs\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": "53e16fbd30005905168d9b75555fdc7e0a2eac58", "tree": "b0227d0b96aa1e7c5a7f4ac1bdc90a5c36e3b566", "parents": [ "4e3408d9f71a70316ebe844c20ef0d7715281f84", "42c2c8c854a716b05882a122632ddcd6dbe108f1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:19:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:19:40 2009 -0700" }, "message": "Merge branch \u0027core-printk-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-printk-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n printk: Fix \"printk: Enable the use of more than one CON_BOOT (early console)\"\n printk: Restore previous console_loglevel when re-enabling logging\n printk: Ensure that \"console enabled\" messages are printed on the console\n printk: Enable the use of more than one CON_BOOT (early console)\n" }, { "commit": "4e3408d9f71a70316ebe844c20ef0d7715281f84", "tree": "365f67fbcbe8e047a5fbead3db5d2e7ac20b3618", "parents": [ "a66a50054e46ec2a03244bc14c48b9125fcd75a7", "96910b6dc8a4fdb75e69f09f47b62d41743d36ba" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:17:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:17:24 2009 -0700" }, "message": "Merge branch \u0027core-locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (32 commits)\n locking, m68k/asm-offsets: Rename signal defines\n locking: Inline spinlock code for all locking variants on s390\n locking: Simplify spinlock inlining\n locking: Allow arch-inlined spinlocks\n locking: Move spinlock function bodies to header file\n locking, m68k: Calculate thread_info offset with asm offset\n locking, m68k/asm-offsets: Rename pt_regs offset defines\n locking, sparc: Rename __spin_try_lock() and friends\n locking, powerpc: Rename __spin_try_lock() and friends\n lockdep: Remove recursion stattistics\n lockdep: Simplify lock_stat seqfile code\n lockdep: Simplify lockdep_chains seqfile code\n lockdep: Simplify lockdep seqfile code\n lockdep: Fix missing entries in /proc/lock_chains\n lockdep: Fix missing entry in /proc/lock_stat\n lockdep: Fix memory usage info of BFS\n lockdep: Reintroduce generation count to make BFS faster\n lockdep: Deal with many similar locks\n lockdep: Introduce lockdep_assert_held()\n lockdep: Fix style nits\n ...\n" }, { "commit": "7193bea53f9d9730bbc859777c2f86c76349914d", "tree": "c841e3d256d63bf30cd4acc4751d9213c0ba7dff", "parents": [ "989aa44a5f215427085ccfe65c1e378e3399c9eb", "84bc4af59081ee974dd80210e694ab59ebe51ce8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:16:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:16:22 2009 -0700" }, "message": "Merge branch \u0027core-futexes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-futexes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n futex: Detect mismatched requeue targets\n futex: Correct futex_wait_requeue_pi() commentary\n" }, { "commit": "989aa44a5f215427085ccfe65c1e378e3399c9eb", "tree": "cd1993f2187e17e0e8d46d4fe12848e7be21fe96", "parents": [ "4004f02d7af9bb1f5fd993fba60ed5bd0f5397a9", "47cab6a722d44c71c4f8224017ef548522243cf4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:15:55 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:15:55 2009 -0700" }, "message": "Merge branch \u0027core-debug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-debug-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n debug lockups: Improve lockup detection, fix generic arch fallback\n debug lockups: Improve lockup detection\n" }, { "commit": "4004f02d7af9bb1f5fd993fba60ed5bd0f5397a9", "tree": "3d7d6dbd82b514550491d93c7a850394deba3f49", "parents": [ "332a3392188e0ad966543c87b8da2b9d246f301d", "5b0f437df0a3e374d26ad533eb78fe64744f55a8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:13:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 13:13:32 2009 -0700" }, "message": "Merge branch \u0027core-cleanups-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-cleanups-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n workqueues: Improve schedule_work() documentation\n" }, { "commit": "a12e4d304ce701844c639541d90df86e165d03f9", "tree": "6ad7314b63a3303d9aa36f1c7eeb68abf64d3592", "parents": [ "89af571ca633ada14d17746519a179553a732d31", "500b067c5e6ceea49cf280a02597b1169320e08c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 09:17:05 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 11 09:17:05 2009 -0700" }, "message": "Merge branch \u0027writeback\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027writeback\u0027 of git://git.kernel.dk/linux-2.6-block:\n writeback: check for registered bdi in flusher add and inode dirty\n writeback: add name to backing_dev_info\n writeback: add some debug inode list counters to bdi stats\n writeback: get rid of pdflush completely\n writeback: switch to per-bdi threads for flushing data\n writeback: move dirty inodes from super_block to backing_dev_info\n writeback: get rid of generic_sync_sb_inodes() export\n" }, { "commit": "d993831fa7ffeb89e994f046f93eeb09ec91df08", "tree": "da4f94bbf022c83988bda71adf1f1b3a88cb4592", "parents": [ "f09b00d3e789a88fa6c7c03cedc62cb65c1de0cb" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Jun 12 14:45:52 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Sep 11 09:20:26 2009 +0200" }, "message": "writeback: add name to backing_dev_info\n\nThis enables us to track who does what and print info. Its main use\nis catching dirty inodes on the default_backing_dev_info, so we can\nfix that up.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a3c8b97396ef42edfb845788ba6f53b2a93ce980", "tree": "530c5bdbc534618311dab3e0af245835af56db0f", "parents": [ "74fca6a42863ffacaf7ba6f1936a9f228950f657", "9f0ab4a3f0fdb1ff404d150618ace2fa069bb2e1" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri Sep 11 08:04:49 2009 +1000" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Fri Sep 11 08:04:49 2009 +1000" }, "message": "Merge branch \u0027next\u0027 into for-linus\n" }, { "commit": "e1f8450854d69f0291882804406ea1bab3ca44b4", "tree": "606e2176f7654269de904b15aad9491912db4093", "parents": [ "3f2aa307c4d26b4ed6509d0a79e8254c9e07e921" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 10 20:52:09 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 10 20:52:54 2009 +0200" }, "message": "sched: Fix sched::sched_stat_wait tracepoint field\n\nThis weird perf trace output:\n\n cc1-9943 [001] 2802.059479616: sched_stat_wait: task: as:9944 wait: 2801938766276 [ns]\n\nIs caused by setting one component field of the delta to zero\na bit too early. Move it to later.\n\n( Note, this does not affect the NEW_FAIR_SLEEPERS interactivity bug,\n it\u0027s just a reporting bug in essence. )\n\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Nikos Chantziaras \u003crealnc@arcor.de\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c4AA93D34.8040500@arcor.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3f2aa307c4d26b4ed6509d0a79e8254c9e07e921", "tree": "97514a19722ffe1f7a973868bf670177b671d3a5", "parents": [ "61cbe54d9479ad98283b2dda686deae4c34b2d59" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 10 20:34:48 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 10 20:34:48 2009 +0200" }, "message": "sched: Disable NEW_FAIR_SLEEPERS for now\n\nNikos Chantziaras and Jens Axboe reported that turning off\nNEW_FAIR_SLEEPERS improves desktop interactivity visibly.\n\nNikos described his experiences the following way:\n\n \" With this setting, I can do \"nice -n 19 make -j20\" and\n still have a very smooth desktop and watch a movie at\n the same time. Various other annoyances (like the\n \"logout/shutdown/restart\" dialog of KDE not appearing\n at all until the background fade-out effect has finished)\n are also gone. So this seems to be the single most\n important setting that vastly improves desktop behavior,\n at least here. \"\n\nJens described it the following way, referring to a 10-seconds\nxmodmap scheduling delay he was trying to debug:\n\n \" Then I tried switching NO_NEW_FAIR_SLEEPERS on, and then\n I get:\n\n Performance counter stats for \u0027xmodmap .xmodmap-carl\u0027:\n\n 9.009137 task-clock-msecs # 0.447 CPUs\n 18 context-switches # 0.002 M/sec\n 1 CPU-migrations # 0.000 M/sec\n 315 page-faults # 0.035 M/sec\n\n 0.020167093 seconds time elapsed\n\n Woot! \"\n\nSo disable it for now. In perf trace output i can see weird\ndelta timestamps:\n\n cc1-9943 [001] 2802.059479616: sched_stat_wait: task: as:9944 wait: 2801938766276 [ns]\n\nThat nsec field is not supposed to be that large. More digging\nis needed - but lets turn it off while the real bug is found.\n\nReported-by: Nikos Chantziaras \u003crealnc@arcor.de\u003e\nTested-by: Nikos Chantziaras \u003crealnc@arcor.de\u003e\nReported-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nTested-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c4AA93D34.8040500@arcor.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "61cbe54d9479ad98283b2dda686deae4c34b2d59", "tree": "e7d4766daaf2895aab96b035a973b67439baecf2", "parents": [ "172e082a9111ea504ee34cbba26284a5ebdc53a7" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Sep 09 15:41:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 09 17:30:06 2009 +0200" }, "message": "sched: Keep kthreads at default priority\n\nRemoves kthread/workqueue priority boost, they increase worst-case\ndesktop latencies.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1252486344.28645.18.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "172e082a9111ea504ee34cbba26284a5ebdc53a7", "tree": "da8e95b16003960d3c132f51e01f83aae6b25d4b", "parents": [ "2bba22c50b06abe9fd0d23933b1e64d35b419262" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Sep 09 15:41:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 09 17:30:06 2009 +0200" }, "message": "sched: Re-tune the scheduler latency defaults to decrease worst-case latencies\n\nReduce the latency target from 20 msecs to 5 msecs.\n\nWhy? Larger latencies increase spread, which is good for scaling,\nbut bad for worst case latency.\n\nWe still have the ilog(nr_cpus) rule to scale up on bigger\nserver boxes.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1252486344.28645.18.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2bba22c50b06abe9fd0d23933b1e64d35b419262", "tree": "5ac0373fa1d18f043cb27183f9f185ceda598915", "parents": [ "b5d9d734a53e0204aab0089079cbde2a1285a38f" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Sep 09 15:41:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 09 17:30:05 2009 +0200" }, "message": "sched: Turn off child_runs_first\n\nSet child_runs_first default to off.\n\nIt hurts \u0027optimal\u0027 make -j\u003cNR_CPUS\u003e workloads as make jobs\nget preempted by child tasks, reducing parallelism.\n\nNote, this patch might make existing races in user\napplications more prominent than before - so breakages\nmight be bisected to this commit.\n\nChild-runs-first is broken on SMP to begin with, and we\nalready had it off briefly in v2.6.23 so most of the\noffenders ought to be fixed. Would be nice not to revert\nthis commit but fix those apps finally ...\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1252486344.28645.18.camel@marge.simson.net\u003e\n[ made the sysctl independent of CONFIG_SCHED_DEBUG, in case\n people want to work around broken apps. ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b5d9d734a53e0204aab0089079cbde2a1285a38f", "tree": "f8c657d213514de7affaab50ed4cfd8b3a17d0f3", "parents": [ "a8fae3ec5f118dc92517dcbed3ecf69ddb641d0f" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Tue Sep 08 11:12:28 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 08 13:15:34 2009 +0200" }, "message": "sched: Ensure that a child can\u0027t gain time over it\u0027s parent after fork()\n\nA fork/exec load is usually \"pass the baton\", so the child\nshould never be placed behind the parent. With START_DEBIT we\nmake room for the new task, but with child_runs_first, that\nroom comes out of the _parent\u0027s_ hide. There\u0027s nothing to say\nthat the parent wasn\u0027t ahead of min_vruntime at fork() time,\nwhich means that the \"baton carrier\", who is essentially the\nparent in drag, can gain time and increase scheduling latencies\nfor waiters.\n\nWith NEW_FAIR_SLEEPERS + START_DEBIT + child_runs_first\nenabled, we essentially pass the sleeper fairness off to the\nchild, which is fine, but if we don\u0027t base placement on the\nparent\u0027s updated vruntime, we can end up compounding latency\nwoes if the child itself then does fork/exec. The debit\nincurred at fork doesn\u0027t hurt the parent who is then going to\nsleep and maybe exit, but the child who acquires the error\nharms all comers.\n\nThis improves latencies of make -j\u003cn\u003e kernel build workloads.\n\nReported-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-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": "71a29aa7b600595d0ef373ea605ac656876d1f2f", "tree": "1288e5bd2bd4b5c599c2b8c7649c30987101a8ec", "parents": [ "cdd2ab3de4301728b20efd6225681d3ff591a938" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 07 18:28:05 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 07 20:39:06 2009 +0200" }, "message": "sched: Deal with low-load in wake_affine()\n\nwake_affine() would always fail under low-load situations where\nboth prev and this were idle, because adding a single task will\nalways be a significant imbalance, even if there\u0027s nothing\naround that could balance it.\n\nDeal with this by allowing imbalance when there\u0027s nothing you\ncan do about 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": "cdd2ab3de4301728b20efd6225681d3ff591a938", "tree": "7b812c19b624efb0056a96a1403e5b5e791ff714", "parents": [ "840a0653100dbde599ae8ddf83fa214dfa5fd1aa" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 07 18:12:06 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 07 20:39:05 2009 +0200" }, "message": "sched: Remove short cut from select_task_rq_fair()\n\nselect_task_rq_fair() incorrectly skips the wake_affine()\nlogic, remove this.\n\nWhen prev_cpu \u003d\u003d this_cpu, the code jumps straight to the\nwake_idle() logic, this doesn\u0027t give the wake_affine() logic\nthe chance to pin the task to this cpu.\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": "b6d9c25631e7c38dc7be220b04553068fb542683", "tree": "9f0bbe028ea0585c63d5f45962ba5d790a4e4a74", "parents": [ "945af7c3289c26c9070d6b1bf3ca759d36643e0b" ], "author": { "name": "Jaswinder Singh Rajput", "email": "jaswinder@kernel.org", "time": "Fri Sep 04 23:13:21 2009 +0530" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Mon Sep 07 11:41:03 2009 +1000" }, "message": "Security/SELinux: includecheck fix kernel/sysctl.c\n\nfix the following \u0027make includecheck\u0027 warning:\n\n kernel/sysctl.c: linux/security.h is included more than once.\n\nSigned-off-by: Jaswinder Singh Rajput \u003cjaswinderrajput@gmail.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "d28daf923ac5e4a0d7cecebae56f3e339189366b", "tree": "8c8dff978e186bcd91ad60caa484480d3ed4ac11", "parents": [ "ed011b22ce567eabefa9ea571d3721c10ecd0553", "4a88d44ab17da5f8a238050d1b43dfd2e204bc2f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:27:40 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:27:40 2009 +0200" }, "message": "Merge branch \u0027tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core\n" }, { "commit": "ed011b22ce567eabefa9ea571d3721c10ecd0553", "tree": "c7aee6684613075c772388a99a9137014549434e", "parents": [ "85bac32c4a52c592b857f2c360cc5ec93a097d70", "e07cccf4046978df10f2e13fe2b99b2f9b3a65db" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:11:38 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 06 06:11:42 2009 +0200" }, "message": "Merge commit \u0027v2.6.31-rc9\u0027 into tracing/core\n\nMerge reason: move from -rc5 to -rc9.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "93697a3cabd3605c434a9b915c0272ad800b3f97", "tree": "dc26826f10979e02efbd2c6a87b326b770284b18", "parents": [ "63995344721be45b3fb3b76488b1b0a8c95def26", "a3df6f7d3090e611bcc774cd2cba45ae016d37e1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 05 13:48:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 05 13:48:37 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:\n perf_counter/powerpc: Fix cache event codes for POWER7\n perf_counter: Fix /0 bug in swcounters\n perf_counters: Increase paranoia level\n" }, { "commit": "85bac32c4a52c592b857f2c360cc5ec93a097d70", "tree": "510e516dd5fa388cb9582a2f6b055f3725fbf2c1", "parents": [ "62f0b3eb5cb58931a02ee4e599e19c80a171e351" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 14:24:40 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:42:22 2009 -0400" }, "message": "ring-buffer: only enable ring_buffer_swap_cpu when needed\n\nSince the ability to swap the cpu buffers adds a small overhead to\nthe recording of a trace, we only want to add it when needed.\n\nOnly the irqsoff and preemptoff tracers use this feature, and both are\nnot recommended for production kernels. This patch disables its use\nwhen neither irqsoff nor preemptoff is configured.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "62f0b3eb5cb58931a02ee4e599e19c80a171e351", "tree": "344b3b8f55e6162f7fa08316aa6fde333b304c04", "parents": [ "e8165dbb03ed04d798163ee512074b9a9466a9c8" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 14:11:34 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:38:42 2009 -0400" }, "message": "ring-buffer: check for swapped buffers in start of committing\n\nBecause the irqsoff tracer can swap an internal CPU buffer, it is possible\nthat a swap happens between the start of the write and before the committing\nbit is set (the committing bit will disable swapping).\n\nThis patch adds a check for this and will fail the write if it detects it.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e8165dbb03ed04d798163ee512074b9a9466a9c8", "tree": "a9e640253a8ce14bada6a83fe1d85ecd74968695", "parents": [ "659372d3e42a3e17a2e042d38a8bcdb94bfbe797" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 19:13:05 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:22:41 2009 -0400" }, "message": "tracing: report error in trace if we fail to swap latency buffer\n\nThe irqsoff tracer will fail to swap the cpu buffer with the max\nbuffer if it preempts a commit. Instead of ignoring this, this patch\nmakes the tracer report it if the last max latency failed due to preempting\na current commit.\n\nThe output of the latency tracer will look like this:\n\n # tracer: irqsoff\n #\n # irqsoff latency trace v1.1.5 on 2.6.31-rc5\n # --------------------------------------------------------------------\n # latency: 112 us, #1/1, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:4)\n # -----------------\n # | task: -4281 (uid:0 nice:0 policy:0 rt_prio:0)\n # -----------------\n # \u003d\u003e started at: save_args\n # \u003d\u003e ended at: __do_softirq\n #\n #\n # _------\u003d\u003e CPU#\n # / _-----\u003d\u003e irqs-off\n # | / _----\u003d\u003e need-resched\n # || / _---\u003d\u003e hardirq/softirq\n # ||| / _--\u003d\u003e preempt-depth\n # |||| /\n # ||||| delay\n # cmd pid ||||| time | caller\n # \\ / ||||| \\ | /\n bash-4281 1d.s6 265us : update_max_tr_single: Failed to swap buffers due to commit in progress\n\nNote the latency time and the functions that disabled the irqs or preemption\nwill still be listed.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "659372d3e42a3e17a2e042d38a8bcdb94bfbe797", "tree": "4c6195eb5e96569f902695f33babbea37e00bd41", "parents": [ "e77405ad80f53966524b5c31244e13fbbbecbd84" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 19:11:07 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 19:13:53 2009 -0400" }, "message": "tracing: add trace_array_printk for internal tracers to use\n\nThis patch adds a trace_array_printk to allow a tracer to use the\ntrace_printk on its own trace array.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e77405ad80f53966524b5c31244e13fbbbecbd84", "tree": "65c05f9e1573e9958e52bb72655e00c8592aacd2", "parents": [ "f633903af2ceb0cec07d45e499a072b6593d0ed1" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 14:17:06 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 18:59:39 2009 -0400" }, "message": "tracing: pass around ring buffer instead of tracer\n\nThe latency tracers (irqsoff and wakeup) can swap trace buffers\non the fly. If an event is happening and has reserved data on one of\nthe buffers, and the latency tracer swaps the global buffer with the\nmax buffer, the result is that the event may commit the data to the\nwrong buffer.\n\nThis patch changes the API to the trace recording to be recieve the\nbuffer that was used to reserve a commit. Then this buffer can be passed\nin to the commit.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f633903af2ceb0cec07d45e499a072b6593d0ed1", "tree": "9a484fa299142a00d0dbb5a97e1108031db96e70", "parents": [ "2f26ebd549b9ab55ac756b836ec759c11fe93f81" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 12:35:16 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 18:46:51 2009 -0400" }, "message": "tracing: make tracing_reset safe for external use\n\nReseting the trace buffer without first disabling the buffer and\nwaiting for any writers to complete, can corrupt the ring buffer.\n\nThis patch makes the external version of tracing_reset safe from\ncorruption by disabling the ring buffer and calling synchronize_sched.\n\nThis version can no longer be called from interrupt context. But all those\ncallers have been removed.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "2f26ebd549b9ab55ac756b836ec759c11fe93f81", "tree": "0f6fb154e2b5e9233a683b3267e5efe862a846f4", "parents": [ "76f0d07376388f32698ba51b6090a26b90c1342f" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Sep 01 11:06:29 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 18:44:22 2009 -0400" }, "message": "tracing: use timestamp to determine start of latency traces\n\nCurrently the latency tracers reset the ring buffer. Unfortunately\nif a commit is in process (due to a trace event), this can corrupt\nthe ring buffer. When this happens, the ring buffer will detect\nthe corruption and then permanently disable the ring buffer.\n\nThe bug does not crash the system, but it does prevent further tracing\nafter the bug is hit.\n\nInstead of reseting the trace buffers, the timestamp of the start of\nthe trace is used instead. The buffers will still contain the previous\ndata, but the output will not count any data that is before the\ntimestamp of the trace.\n\nNote, this only affects the static trace output (trace) and not the\nruntime trace output (trace_pipe). The runtime trace output does not\nmake sense for the latency tracers anyway.\n\nReported-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c58b43218c1a04a0bcf338ea47406c759ac28e11", "tree": "e13e33f195a13b4c959494ee7d059b87c2167be3", "parents": [ "8e254c1d183f0225ad21f9049641529e56cce4da" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Sep 01 13:31:38 2009 +0800" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 04 23:22:33 2009 +0200" }, "message": "tracing/filters: Defer pred allocation, fix memory leak\n\nThe predicates of an event and their filter structure are allocated\nwhen we create an event filter for the first time.\n\nThese objects must be created once but each time we come with a new\nfilter, we overwrite such pre-existing allocation, if any.\n\nThus, this patch checks if the filter has already been allocated\nbefore going ahead.\n\nSpotted-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9CB1BA.3060402@cn.fujitsu.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "76f0d07376388f32698ba51b6090a26b90c1342f", "tree": "ea3a2576e7d2ae85d610aa088cb05986a13f03b1", "parents": [ "621968cdb2563b667d6ecb484ba91ef4c3a797b3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 12:12:39 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 12:12:39 2009 -0400" }, "message": "tracing: remove users of tracing_reset\n\nThe function tracing_reset is deprecated for outside use of trace.c.\n\nThe new function to reset the the buffers is tracing_reset_online_cpus.\n\nThe reason for this is that resetting the buffers while the event\ntrace points are active can corrupt the buffers, because they may\nbe writing at the time of reset. The tracing_reset_online_cpus disables\nwrites and waits for current writers to finish.\n\nThis patch replaces all users of tracing_reset except for the latency\ntracers. Those changes require more work and will be removed in the\nfollowing patches.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "621968cdb2563b667d6ecb484ba91ef4c3a797b3", "tree": "a4b8e3ba1f55d6b725b37a4e42c2f376d6150cdc", "parents": [ "b8de7bd168fa54d059b16d3057b2f8a32cc5bdc3" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Sep 04 12:02:35 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 12:02:35 2009 -0400" }, "message": "tracing: disable buffers and synchronize_sched before resetting\n\nResetting the ring buffers while traces are happening can corrupt\nthe ring buffer and disable it (no kernel crash to worry about).\n\nThe safest thing to do is disable the ring buffers, call synchronize_sched()\nto wait for all current writers to finish and then reset the buffer.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "b8de7bd168fa54d059b16d3057b2f8a32cc5bdc3", "tree": "3455ec59050f7f6d466a8c08275567079914d1b1", "parents": [ "8248ac052dfd1eb41819fbc0ca5c7a1667e7e70c" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Aug 31 22:32:27 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:52:24 2009 -0400" }, "message": "tracing: disable update max tracer while reading trace\n\nWhen reading the tracer from the trace file, updating the max latency\nmay corrupt the output. This patch disables the tracing of the max\nlatency while reading the trace file.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8248ac052dfd1eb41819fbc0ca5c7a1667e7e70c", "tree": "d979964a23112b6266d26da19a572057e5060367", "parents": [ "077c5407cd3231cf13472623995f0dfdda510d62" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 12:27:41 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:48:12 2009 -0400" }, "message": "tracing: print out start and stop in latency traces\n\nDuring development of the tracer, we would copy information from\nthe live tracer to the max tracer with one memcpy. Since then we\nadded a generic ring buffer and we handle the copies differently now.\nUnfortunately, we never copied the critical section information, and\nwe lost the output:\n\n # \u003d\u003e started at: kmem_cache_alloc\n # \u003d\u003e ended at: kmem_cache_alloc\n\nThis patch adds back the critical start and end copying as well as\nremoves the unused \"trace_idx\" and \"overrun\" fields of the\ntrace_array_cpu structure.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "077c5407cd3231cf13472623995f0dfdda510d62", "tree": "843c729463363495f13333b2b55f3985ea75dfd8", "parents": [ "a1863c212b7517afc2b13e549552ac322fb44cab" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 19:53:46 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:46:25 2009 -0400" }, "message": "ring-buffer: disable all cpu buffers when one finds a problem\n\nCurrently the way RB_WARN_ON works, is to disable either the current\nCPU buffer or all CPU buffers, depending on whether a ring_buffer or\nring_buffer_per_cpu struct was passed into the macro.\n\nMost users of the RB_WARN_ON pass in the CPU buffer, so only the one\nCPU buffer gets disabled but the rest are still active. This may\nconfuse users even though a warning is sent to the console.\n\nThis patch changes the macro to disable the entire buffer even if\nthe CPU buffer is passed in.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a1863c212b7517afc2b13e549552ac322fb44cab", "tree": "20ad746370b0d03950f23a349ebb07c913f99fd2", "parents": [ "dc892f7339af2d125478b800edb9081d6149665b" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 10:23:58 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:43:36 2009 -0400" }, "message": "ring-buffer: do not count discarded events\n\nThe latency tracers report the number of items in the trace buffer.\nThis uses the ring buffer data to calculate this. Because discarded\nevents are also counted, the numbers do not match the number of items\nthat are printed. The ring buffer also adds a \"padding\" item to the\nend of each buffer page which also gets counted as a discarded item.\n\nThis patch decrements the counter to the page entries on a discard.\nThis allows us to ignore discarded entries while reading the buffer.\n\nDecrementing the counter is still safe since it can only happen while\nthe committing flag is still set.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "dc892f7339af2d125478b800edb9081d6149665b", "tree": "3377439556b600c7bd3d53cbc0a893dd75bed634", "parents": [ "7e9391cfedce34eb9786bfa69d7d545dc93ef930" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 15:33:41 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:36:19 2009 -0400" }, "message": "ring-buffer: remove ring_buffer_event_discard\n\nThe function ring_buffer_event_discard can be used on any item in the\nring buffer, even after the item was committed. This function provides\nno safety nets and is very race prone.\n\nAn item may be safely removed from the ring buffer before it is committed\nwith the ring_buffer_discard_commit.\n\nSince there are currently no users of this function, and because this\nfunction is racey and error prone, this patch removes it altogether.\n\nNote, removing this function also allows the counters to ignore\nall discarded events (patches will follow).\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "7e9391cfedce34eb9786bfa69d7d545dc93ef930", "tree": "e3901037e9269cbf10bd2952835ebcc573e5741d", "parents": [ "1b959e18c4d6b4b981f887260b0f8e7939efa411" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 10:02:09 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:28:39 2009 -0400" }, "message": "ring-buffer: fix ring_buffer_read crossing pages\n\nWhen the ring buffer uses an iterator (static read mode, not on the\nfly reading), when it crosses a page boundery, it will skip the first\nentry on the next page. The reason is that the last entry of a page\nis usually padding if the page is not full. The padding will not be\nreturned to the user.\n\nThe problem arises on ring_buffer_read because it also increments the\niterator. Because both the read and peek use the same rb_iter_peek,\nthe rb_iter_peak will return the padding but also increment to the next\nitem. This is because the ring_buffer_peek will not incerment it\nitself.\n\nThe ring_buffer_read will increment it again and then call rb_iter_peek\nagain to get the next item. But that will be the second item, not the\nfirst one on the page.\n\nThe reason this never showed up before, is because the ftrace utility\nalways calls ring_buffer_peek first and only uses ring_buffer_read\nto increment to the next item. The ring_buffer_peek will always keep\nthe pointer to a valid item and not padding. This just hid the bug.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "1b959e18c4d6b4b981f887260b0f8e7939efa411", "tree": "3f7b9950cfe19742cfe04bc3feb11f7ad0a46e71", "parents": [ "98277991a99734f3a31d638afb47d4484ac73e43" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Sep 03 10:12:13 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:25:27 2009 -0400" }, "message": "ring-buffer: remove unnecessary cpu_relax\n\nThe loops in the ring buffer that use cpu_relax are not dependent on\nother CPUs. They simply came across some padding in the ring buffer and\nare skipping over them. It is a normal loop and does not require a\ncpu_relax.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "98277991a99734f3a31d638afb47d4484ac73e43", "tree": "6688cb3c43562d6bd7b67961478ac337297064e5", "parents": [ "41b6a95d693319f804607b559893fbbd27498548" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 10:56:15 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:22:47 2009 -0400" }, "message": "ring-buffer: do not swap buffers during a commit\n\nIf a commit is taking place on a CPU ring buffer, do not allow it to\nbe swapped. Return -EBUSY when this is detected instead.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "41b6a95d693319f804607b559893fbbd27498548", "tree": "eafa22ab694eda7723cec115592a861867432a66", "parents": [ "8e254c1d183f0225ad21f9049641529e56cce4da" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 02 09:59:48 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Sep 04 11:15:08 2009 -0400" }, "message": "ring-buffer: do not reset while in a commit\n\nThe callers of reset must ensure that no commit can be taking place\nat the time of the reset. If it does then we may corrupt the ring buffer.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\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": "29e2035bddecce3eb584a8304528b50da8370a24", "tree": "13155df7d90a8e287b83a1cd6c0d02c3018212ab", "parents": [ "868489660dabc0c28087cca3dbc1adbbc398c6fe", "37d0892c5a94e208cf863e3b7bac014edee4346d" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 09:28:52 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 04 09:29:05 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into core/rcu\n\nMerge reason: Avoid fuzz in init/main.c and update from rc6 to rc8.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dc86cabe4b242446ea9aa8492c727e1220817898", "tree": "eace3c21e20231d6f6359a223941efa419a82ea4", "parents": [ "6f4596d9312ba5fbf5f3231ef484823c4e684d2e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 03 18:03:00 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 03 18:46:23 2009 +0200" }, "message": "perf_counter: Fix output-sharing error path\n\nWe forget to release the fd in the PERF_FLAG_FD_OUTPUT\nerror path.\n\nReorganize the error flow here to be a clean fall-through\nlogic.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0fbdea19e9394a5cb5f2f5081b028c50b558910a", "tree": "c3eae68d53504ed1f1615dcb7b5de58ce5d6ff98", "parents": [ "f76bd108e5031202bb40849306f98c4afebe4ef6" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 21:46:00 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 21:53:02 2009 +0200" }, "message": "perf_counter: Introduce new (non-)paranoia level to allow raw tracepoint access\n\nI want to sample inherited tracepoint workloads as a normal\nuser and the CAP_SYS_ADMIN check prevents me from doing that\nright now.\n\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f76bd108e5031202bb40849306f98c4afebe4ef6", "tree": "455e14a23642a82513eebd4e4f7d3b76842869cd", "parents": [ "cd6feeeafddbef6abfe4d90fb26e42fd844d34ed", "eced1dfcfcf6b0a35e925d73916a9d8e36ab5457" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 21:42:56 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 21:42:59 2009 +0200" }, "message": "Merge branch \u0027perfcounters/urgent\u0027 into perfcounters/core\n\nMerge reason: We are going to modify a place modified by\n perfcounters/urgent.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee18d64c1f632043a02e6f5ba5e045bb26a5465f", "tree": "80b5a4d530ec7d5fd69799920f0db7b78aba6b9d", "parents": [ "d0420c83f39f79afb82010c2d2cafd150eef651b" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Sep 02 09:14:21 2009 +0100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Wed Sep 02 21:29:22 2009 +1000" }, "message": "KEYS: Add a keyctl to install a process\u0027s session keyring on its parent [try #6]\n\nAdd a keyctl to install a process\u0027s session keyring onto its parent. This\nreplaces the parent\u0027s session keyring. Because the COW credential code does\nnot permit one process to change another process\u0027s credentials directly, the\nchange is deferred until userspace next starts executing again. Normally this\nwill be after a wait*() syscall.\n\nTo support this, three new security hooks have been provided:\ncred_alloc_blank() to allocate unset security creds, cred_transfer() to fill in\nthe blank security creds and key_session_to_parent() - which asks the LSM if\nthe process may replace its parent\u0027s session keyring.\n\nThe replacement may only happen if the process has the same ownership details\nas its parent, and the process has LINK permission on the session keyring, and\nthe session keyring is owned by the process, and the LSM permits it.\n\nNote that this requires alteration to each architecture\u0027s notify_resume path.\nThis has been done for all arches barring blackfin, m68k* and xtensa, all of\nwhich need assembly alteration to support TIF_NOTIFY_RESUME. This allows the\nreplacement to be performed at the point the parent process resumes userspace\nexecution.\n\nThis allows the userspace AFS pioctl emulation to fully emulate newpag() and\nthe VIOCSETTOK and VIOCSETTOK2 pioctls, all of which require the ability to\nalter the parent process\u0027s PAG membership. However, since kAFS doesn\u0027t use\nPAGs per se, but rather dumps the keys into the session keyring, the session\nkeyring of the parent must be replaced if, for example, VIOCSETTOK is passed\nthe newpag flag.\n\nThis can be tested with the following program:\n\n\t#include \u003cstdio.h\u003e\n\t#include \u003cstdlib.h\u003e\n\t#include \u003ckeyutils.h\u003e\n\n\t#define KEYCTL_SESSION_TO_PARENT\t18\n\n\t#define OSERROR(X, S) do { if ((long)(X) \u003d\u003d -1) { perror(S); exit(1); } } while(0)\n\n\tint main(int argc, char **argv)\n\t{\n\t\tkey_serial_t keyring, key;\n\t\tlong ret;\n\n\t\tkeyring \u003d keyctl_join_session_keyring(argv[1]);\n\t\tOSERROR(keyring, \"keyctl_join_session_keyring\");\n\n\t\tkey \u003d add_key(\"user\", \"a\", \"b\", 1, keyring);\n\t\tOSERROR(key, \"add_key\");\n\n\t\tret \u003d keyctl(KEYCTL_SESSION_TO_PARENT);\n\t\tOSERROR(ret, \"KEYCTL_SESSION_TO_PARENT\");\n\n\t\treturn 0;\n\t}\n\nCompiled and linked with -lkeyutils, you should see something like:\n\n\t[dhowells@andromeda ~]$ keyctl show\n\tSession Keyring\n\t -3 --alswrv 4043 4043 keyring: _ses\n\t355907932 --alswrv 4043 -1 \\_ keyring: _uid.4043\n\t[dhowells@andromeda ~]$ /tmp/newpag\n\t[dhowells@andromeda ~]$ keyctl show\n\tSession Keyring\n\t -3 --alswrv 4043 4043 keyring: _ses\n\t1055658746 --alswrv 4043 4043 \\_ user: a\n\t[dhowells@andromeda ~]$ /tmp/newpag hello\n\t[dhowells@andromeda ~]$ keyctl show\n\tSession Keyring\n\t -3 --alswrv 4043 4043 keyring: hello\n\t340417692 --alswrv 4043 4043 \\_ user: a\n\nWhere the test program creates a new session keyring, sticks a user key named\n\u0027a\u0027 into it and then installs it on its parent.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "e0e817392b9acf2c98d3be80c233dddb1b52003d", "tree": "ee680c020039313c9f9c40ab3542bb30a7363381", "parents": [ "ed6d76e4c32de0c2ad5f1d572b948ef49e465176" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Sep 02 09:13:40 2009 +0100" }, "committer": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Wed Sep 02 21:29:01 2009 +1000" }, "message": "CRED: Add some configurable debugging [try #6]\n\nAdd a config option (CONFIG_DEBUG_CREDENTIALS) to turn on some debug checking\nfor credential management. The additional code keeps track of the number of\npointers from task_structs to any given cred struct, and checks to see that\nthis number never exceeds the usage count of the cred struct (which includes\nall references, not just those from task_structs).\n\nFurthermore, if SELinux is enabled, the code also checks that the security\npointer in the cred struct is never seen to be invalid.\n\nThis attempts to catch the bug whereby inode_has_perm() faults in an nfsd\nkernel thread on seeing cred-\u003esecurity be a NULL pointer (it appears that the\ncredential struct has been previously released):\n\n\thttp://www.kerneloops.org/oops.php?number\u003d252883\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\n" }, { "commit": "768d0c27226e6587cad2fcf543f9711da3f3774e", "tree": "0e299fb34584ff3c5c59f3ed95da70aab372dbc7", "parents": [ "8f0dfc34e9b323a028c2ec41abb7e9de477b7a94" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Jul 23 20:13:26 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 09:12:18 2009 +0200" }, "message": "sched: Add wait, sleep and iowait accounting tracepoints\n\nAdd 3 schedstat tracepoints to help account for wait-time,\nsleep-time and iowait-time.\n\nThey can also be used as a perf-counter source to profile tasks\non these clocks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\n[ build fix for the !CONFIG_SCHEDSTATS case ]\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": "f14eff1cc2f418a7c5e23aedc6a1bdca3343b871", "tree": "fd8d5f7ed2b2e94eff4007e8da0e9ed205d8d5c9", "parents": [ "84e9dabf6e6a78928c6a1a8ba235c9fb0908d0f8", "326ba5010a5429a5a528b268b36a5900d4ab0eba" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 08:20:32 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 02 08:20:35 2009 +0200" }, "message": "Merge commit \u0027v2.6.31-rc8\u0027 into sched/core\n\nMerge reason: bump from rc5 to rc8, but also pick up TP_perf_assign()\n API, a patch will be queued that depends on it.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "892a7c67c12da63fa4b51728bbe5b982356a090a", "tree": "ba6cb9cf1be394428d9ef2596b0575e28ab0b19a", "parents": [ "69d0ee7377eef808e34ba5542b554ec97244b871" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Mon Aug 31 14:43:37 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 18:08:50 2009 +0200" }, "message": "locking: Allow arch-inlined spinlocks\n\nThis allows an architecture to specify per lock variant if the\nlocking code should be kept out-of-line or inlined.\n\nIf an architecure wants out-of-line locking code no change is\nneeded. To force inlining of e.g. spin_lock() the line:\n\n #define __always_inline__spin_lock\n\nneeds to be added to arch/\u003c...\u003e/include/asm/spinlock.h\n\nIf CONFIG_DEBUG_SPINLOCK or CONFIG_GENERIC_LOCKBREAK are\ndefined the per architecture defines are (partly) ignored and\nstill out-of-line spinlock code will be generated.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Horst Hartmann \u003chorsth@linux.vnet.ibm.com\u003e\nCc: Christian Ehrhardt \u003cehrhardt@linux.vnet.ibm.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003c20090831124418.375299024@de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "69d0ee7377eef808e34ba5542b554ec97244b871", "tree": "f46c756b897cf51497fda2ad22f9f12a3512e23b", "parents": [ "0ee000e5e8fa2e5c760250be0d78d5906e3eb94b" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Mon Aug 31 14:43:36 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 18:08:50 2009 +0200" }, "message": "locking: Move spinlock function bodies to header file\n\nMove spinlock function bodies to header file by creating a\nstatic inline version of each variant. Use the inline version\non the out-of-line code.\n\nThis shouldn\u0027t make any difference besides that the spinlock\ncode can now be used to generate inlined spinlock code.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Horst Hartmann \u003chorsth@linux.vnet.ibm.com\u003e\nCc: Christian Ehrhardt \u003cehrhardt@linux.vnet.ibm.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nLKML-Reference: \u003c20090831124417.859022429@de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bbe69aa57a7374b51242b95a54eefcf0d0393b7e", "tree": "c45e48d11cc9cb81a57c8c27f7243863b117cec8", "parents": [ "a417887637e862b434b293404f2a31ad1f282a58", "326ba5010a5429a5a528b268b36a5900d4ab0eba" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 17:54:18 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 18:05:25 2009 +0200" }, "message": "Merge commit \u0027v2.6.31-rc8\u0027 into core/locking\n\nMerge reason: we were on -rc4, move to -rc8 before applying\n a new batch of locking infrastructure changes.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8e254c1d183f0225ad21f9049641529e56cce4da", "tree": "5b559726a38b60c6bc92b3c8667c676db1038701", "parents": [ "73222acf966792c7fda219724af963339be32e62" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 31 16:49:41 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 31 10:58:08 2009 +0200" }, "message": "tracing/filters: Defer pred allocation\n\ninit_preds() allocates about 5392 bytes of memory (on x86_32) for\na TRACE_EVENT. With my config, at system boot total memory occupied\nis:\n\n\t5392 * (642 + 15) \u003d\u003d 3459KB\n\n642 \u003d\u003d cat available_events | wc -l\n15 \u003d\u003d number of dirs in events/ftrace\n\nThat\u0027s quite a lot, so we\u0027d better defer memory allocation util\nit\u0027s needed, that\u0027s when filter is used.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nLKML-Reference: \u003c4A9B8EA5.6020700@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "372e24b0cb764ec55b4cf3408a95ae40a29e5b96", "tree": "ee8b1e26ec723e509f6478898f4cfbd826aac5f2", "parents": [ "31b47cf7609288893a10706c648faa932c7aef90" ], "author": { "name": "Yinghai Lu", "email": "yinghai@kernel.org", "time": "Wed Aug 26 16:20:13 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 15:53:00 2009 +0200" }, "message": "irq: Make sure irq_desc for legacy irq get correct node setting\n\nwhen there is no ram on node 0.\n\nSigned-off-by: Yinghai Lu \u003cyinghai@kernel.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\nLKML-Reference: \u003c4A95C32D.5040605@kernel.org\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": "868489660dabc0c28087cca3dbc1adbbc398c6fe", "tree": "cf991ec94ce29bccfef27213107748810c51a1ca", "parents": [ "dd5d19bafd90d33043a4a14b2e2d98612caa293c" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu Aug 27 15:00:12 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 15:34:40 2009 +0200" }, "message": "rcu: Changes from reviews: avoid casts, fix/add warnings, improve comments\n\nChanges suggested by review comments from Josh Triplett and\nMathieu Desnoyers.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nAcked-by: Josh Triplett \u003cjosh@joshtriplett.org\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: akpm@linux-foundation.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nLKML-Reference: \u003c20090827220012.GA30525@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dd5d19bafd90d33043a4a14b2e2d98612caa293c", "tree": "c21d547124d277f00332bdb01c75f2f4f321de8c", "parents": [ "06e799764eb7c2e4640888d438c3524d756613e1" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu Aug 27 14:58:16 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 15:34:39 2009 +0200" }, "message": "rcu: Create rcutree plugins to handle hotplug CPU for multi-level trees\n\nWhen offlining CPUs from a multi-level tree, there is the\npossibility of offlining the last CPU from a given node when\nthere are preempted RCU read-side critical sections that\nstarted life on one of the CPUs on that node.\n\nIn this case, the corresponding tasks will be enqueued via the\ntask_struct\u0027s rcu_node_entry list_head onto one of the\nrcu_node\u0027s blocked_tasks[] lists. These tasks need to be moved\nsomewhere else so that they will prevent the current grace\nperiod from ending. That somewhere is the root rcu_node.\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: \u003c20090827215816.GA30472@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a417887637e862b434b293404f2a31ad1f282a58", "tree": "55c71d0a1404b4ab93a38fc51a3ab6f5afe5b860", "parents": [ "96004bb2a1e4ccad2b1eeb92e51031d1e8e609e3" ], "author": { "name": "Ming Lei", "email": "tom.leiming@gmail.com", "time": "Sat Aug 29 18:47:59 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 13:22:36 2009 +0200" }, "message": "lockdep: Remove recursion stattistics\n\nSince lockdep has introduced BFS to avoid recursion, statistics\nfor recursion does not make any sense now. So remove them.\n\nSigned-off-by: Ming Lei \u003ctom.leiming@gmail.com\u003e\nCc: a.p.zijlstra@chello.nl\nLKML-Reference: \u003c1251542879-5211-1-git-send-email-tom.leiming@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eced1dfcfcf6b0a35e925d73916a9d8e36ab5457", "tree": "a709c2d32788f91aa07e03c9b01bafae15f923f3", "parents": [ "6bb56347f5162d1a7cb1dc461023360781ecd4c0" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Fri Aug 28 17:10:47 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 13:20:11 2009 +0200" }, "message": "perf_counter: Fix /0 bug in swcounters\n\nWe have a race in the swcounter stuff where we can start\ncounting a counter that has never been enabled, this leads to a\n/0 situation.\n\nThe below avoids the /0 but doesn\u0027t close the race, this would\nneed a new counter state.\n\nThe race is due to perf_swcounter_is_counting() which cannot\ndiscern between disabled due to scheduled out, and disabled for\nany other reason.\n\nSuch a crash has been seen by Ingo:\n\n[ 967.092372] divide error: 0000 [#1] SMP\n[ 967.096499] last sysfs file: /sys/devices/system/cpu/cpu15/cache/index2/shared_cpu_map\n[ 967.104846] CPU 5\n[ 967.106965] Modules linked in:\n[ 967.110169] Pid: 3351, comm: hackbench Not tainted 2.6.31-rc8-tip-01158-gd940a54-dirty #1568 X8DTN\n[ 967.119456] RIP: 0010:[\u003cffffffff810c0aba\u003e] [\u003cffffffff810c0aba\u003e] perf_swcounter_ctx_event+0x127/0x1af\n[ 967.129137] RSP: 0018:ffff8801a95abd70 EFLAGS: 00010046\n[ 967.134699] RAX: 0000000000000002 RBX: ffff8801bd645c00 RCX: 0000000000000002\n[ 967.142162] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801bd645d40\n[ 967.149584] RBP: ffff8801a95abdb0 R08: 0000000000000001 R09: ffff8801a95abe00\n[ 967.157042] R10: 0000000000000037 R11: ffff8801aa1245f8 R12: ffff8801a95abe00\n[ 967.164481] R13: ffff8801a95abe00 R14: ffff8801aa1c0e78 R15: 0000000000000001\n[ 967.171953] FS: 0000000000000000(0000) GS:ffffc90000a00000(0063) knlGS:00000000f7f486c0\n[ 967.180406] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b\n[ 967.186374] CR2: 000000004822c0ac CR3: 00000001b19a2000 CR4: 00000000000006e0\n[ 967.193770] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 967.201224] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400\n[ 967.208692] Process hackbench (pid: 3351, threadinfo ffff8801a95aa000, task ffff8801a96b0000)\n[ 967.217607] Stack:\n[ 967.219711] 0000000000000000 0000000000000037 0000000200000001 ffffc90000a1107c\n[ 967.227296] \u003c0\u003e ffff8801a95abe00 0000000000000001 0000000000000001 0000000000000037\n[ 967.235333] \u003c0\u003e ffff8801a95abdf0 ffffffff810c0c20 0000000200a14f30 ffff8801a95abe40\n[ 967.243532] Call Trace:\n[ 967.246103] [\u003cffffffff810c0c20\u003e] do_perf_swcounter_event+0xde/0xec\n[ 967.252635] [\u003cffffffff810c0ca7\u003e] perf_tpcounter_event+0x79/0x7b\n[ 967.258957] [\u003cffffffff81037f73\u003e] ftrace_profile_sched_switch+0xc0/0xcb\n[ 967.265791] [\u003cffffffff8155f22d\u003e] schedule+0x429/0x4c4\n[ 967.271156] [\u003cffffffff8100c01e\u003e] int_careful+0xd/0x14\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1251472247.17617.74.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "73222acf966792c7fda219724af963339be32e62", "tree": "83109ded0bcfdc6a0ec5e8ea6becffd7ac41ec6a", "parents": [ "0dd7b74787eaf7858c6c573353a83c3e2766e674", "5d4a9dba2d7fbab69f00dedd430d1788834a055a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 13:06:05 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Aug 29 13:06:05 2009 +0200" }, "message": "Merge branch \u0027tip/tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/core\n" }, { "commit": "ea6bff368548d79529421a9dc0710fc5330eb504", "tree": "94739882e72fabd5d3822af80a45a8aea3d52c1d", "parents": [ "4ed86af67e04cb5eb93faba589d102726207865a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 10:44:56 2009 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 28 19:35:00 2009 -1000" }, "message": "modules: Fix build error in the !CONFIG_KALLSYMS case\n\n\u003e James Bottomley (1):\n\u003e module: workaround duplicate section names\n\n-tip testing found that this patch breaks the build on x86 if\nCONFIG_KALLSYMS is disabled:\n\n kernel/module.c: In function ‘load_module’:\n kernel/module.c:2367: error: ‘struct module’ has no member named ‘sect_attrs’\n distcc[8269] ERROR: compile kernel/module.c on ph/32 failed\n make[1]: *** [kernel/module.o] Error 1\n make: *** [kernel] Error 2\n make: *** Waiting for unfinished jobs....\n\nCommit 1b364bf misses the fact that section attributes are only\nbuilt and dealt with if kallsyms is enabled. The patch below fixes\nthis.\n\n( note, technically speaking this should depend on CONFIG_SYSFS as\n well but this patch is correct too and keeps the #ifdef less\n intrusive - in the KALLSYMS \u0026\u0026 !SYSFS case the code is a NOP. )\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n[ Replaced patch with a slightly cleaner variation by James Bottomley ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6bb56347f5162d1a7cb1dc461023360781ecd4c0", "tree": "a2f1926c1ad68da16e05a2586645ca3de20ab7c5", "parents": [ "326ba5010a5429a5a528b268b36a5900d4ab0eba" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 13:44:53 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 28 13:44:53 2009 +0200" }, "message": "perf_counters: Increase paranoia level\n\nPer-cpu counters are an ASLR information leak as they show\nthe execution other tasks do. Increase the paranoia level\nto 1, which disallows per-cpu counters. (they still allow\ncounting/profiling of own tasks - and admin can profile\neverything.)\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: \u003cnew-submission\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": "5d4a9dba2d7fbab69f00dedd430d1788834a055a", "tree": "a57ec209fc1ac86d7acbd67164b068ecdadd6317", "parents": [ "c0729be99cb2b9d9749256254f1c40a801835896" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Thu Aug 27 16:52:21 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Aug 27 16:58:05 2009 -0400" }, "message": "tracing: only show tracing_max_latency when latency tracer configured\n\nThe tracing_max_latency file should only be present when one of the\nlatency tracers ({preempt|irqs}off, wakeup*) are enabled.\n\nThis patch also removes tracing_thresh when latency tracers are not\nenabled, as well as compiles out code that is only used for latency\ntracers.\n\nReported-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c0729be99cb2b9d9749256254f1c40a801835896", "tree": "f7cb3d86ed28f2f42dcaa23035f2ecc30e363137", "parents": [ "6c347d43eea29221a8ebab9ff9cbe7a00cddac98" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Aug 26 22:23:52 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Aug 27 16:58:03 2009 -0400" }, "message": "tracing: remove legacy select of MARKERS by context switch tracing\n\nThe context switch tracer was made before tracepoints were mature, and\nthe original version used markers. This is no longer true and this\npatch removes the select.\n\nReported-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "1b364bf438cf337a3818aee77d68c0713f3e1fc4", "tree": "878d30319bd3721c6075eef8f3341c6fa9a5afd6", "parents": [ "7d1d16e416e61aeef8655d542f8e4a4fc6e808e4" ], "author": { "name": "James Bottomley", "email": "James.Bottomley@HansenPartnership.com", "time": "Wed Aug 26 22:04:12 2009 +0930" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Aug 27 12:33:19 2009 -0700" }, "message": "module: workaround duplicate section names\n\nThe root cause is a duplicate section name (.text); is this legal?\n[ Amerigo Wang: \"AFAIK, yes.\" ]\n\nHowever, there\u0027s a problem with commit\n6d76013381ed28979cd122eb4b249a88b5e384fa in that if you fail to allocate\na mod-\u003esect_attrs (in this case it\u0027s null because of the duplication),\nit still gets used without checking in add_notes_attrs()\n\nThis should fix it\n\n[ This patch leaves other problems, particularly the sections directory,\n but recent parisc toolchains seem to produce these modules and this\n prevents a crash and is a minimal change -- RR ]\n\nSigned-off-by: James Bottomley \u003cJames.Bottomley@suse.de\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nTested-by: Helge Deller \u003cdeller@gmx.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7d1d16e416e61aeef8655d542f8e4a4fc6e808e4", "tree": "dfa53b29720cffdba1a64876de30567b6ed5e766", "parents": [ "0a80fb10239b04c45e5e80aad8d4b2ca5ac407b2" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Wed Aug 26 22:02:54 2009 +0930" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Aug 27 12:33:19 2009 -0700" }, "message": "module: fix BUG_ON() for powerpc (and other function descriptor archs)\n\nThe rarely-used symbol_put_addr() needs to use dereference_function_descriptor\non powerpc.\n\nReported-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au.\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4dbc9ca219b0f294332e734528f7b82211700170", "tree": "377ee0e0d671f507dbb73618684630aba2475299", "parents": [ "399b5da29b9f851eb7b96e2882097127f003e87c" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Aug 27 09:38:49 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Aug 27 09:38:49 2009 +0200" }, "message": "genirq: Do not mask oneshot edge type interrupts\n\nMasking oneshot edge type interrupts is wrong as we might lose an\ninterrupt which is issued when the threaded handler is handling the\ndevice. We can keep the irq unmasked safely as with edge type\ninterrupts there is no danger of interrupt floods. If the threaded\nhandler has not yet finished then IRQTF_RUNTHREAD is set which will\nkeep the handler thread active.\n\nDebugged and verified in preempt-rt.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "4ab6c08336535f8c8e42cf45d7adeda882eff06e", "tree": "a55253a82ba425e38a3f2993b04fa1e3023da25a", "parents": [ "03ef83af528899aa339e42d8024b37e2f434fba4" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Wed Aug 26 14:29:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 26 20:06:52 2009 -0700" }, "message": "clone(): fix race between copy_process() and de_thread()\n\nSpotted by Hiroshi Shimamoto who also provided the test-case below.\n\ncopy_process() uses signal-\u003ecount as a reference counter, but it is not.\nThis test case\n\n\t#include \u003csys/types.h\u003e\n\t#include \u003csys/wait.h\u003e\n\t#include \u003cunistd.h\u003e\n\t#include \u003cstdio.h\u003e\n\t#include \u003cerrno.h\u003e\n\t#include \u003cpthread.h\u003e\n\n\tvoid *null_thread(void *p)\n\t{\n\t\tfor (;;)\n\t\t\tsleep(1);\n\n\t\treturn NULL;\n\t}\n\n\tvoid *exec_thread(void *p)\n\t{\n\t\texecl(\"/bin/true\", \"/bin/true\", NULL);\n\n\t\treturn null_thread(p);\n\t}\n\n\tint main(int argc, char **argv)\n\t{\n\t\tfor (;;) {\n\t\t\tpid_t pid;\n\t\t\tint ret, status;\n\n\t\t\tpid \u003d fork();\n\t\t\tif (pid \u003c 0)\n\t\t\t\tbreak;\n\n\t\t\tif (!pid) {\n\t\t\t\tpthread_t tid;\n\n\t\t\t\tpthread_create(\u0026tid, NULL, exec_thread, NULL);\n\t\t\t\tfor (;;)\n\t\t\t\t\tpthread_create(\u0026tid, NULL, null_thread, NULL);\n\t\t\t}\n\n\t\t\tdo {\n\t\t\t\tret \u003d waitpid(pid, \u0026status, 0);\n\t\t\t} while (ret \u003d\u003d -1 \u0026\u0026 errno \u003d\u003d EINTR);\n\t\t}\n\n\t\treturn 0;\n\t}\n\nquickly creates an unkillable task.\n\nIf copy_process(CLONE_THREAD) races with de_thread()\ncopy_signal()-\u003eatomic(signal-\u003ecount) breaks the signal-\u003enotify_count\nlogic, and the execing thread can hang forever in kernel space.\n\nChange copy_process() to increment count/live only when we know for sure\nwe can\u0027t fail. In this case the forked thread will take care of its\nreference to signal correctly.\n\nIf copy_process() fails, check CLONE_THREAD flag. If it it set - do\nnothing, the counters were not changed and current belongs to the same\nthread group. If it is not set, -\u003esignal must be released in any case\n(and -\u003ecount must be \u003d\u003d 1), the forked child is the only thread in the\nthread group.\n\nWe need more cleanups here, in particular signal-\u003ecount should not be used\nby de_thread/__exit_signal at all. This patch only fixes the bug.\n\nReported-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nTested-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "57421dbbdc932d65f0e6a41ebb027a2bfe3d0669", "tree": "0dec1f947cc6d3e9d5fe813c31cbaa960c9ed7b6", "parents": [ "a5a2f8e2acb991327952c45a13f5441fc09dffd6" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Mon Aug 24 17:40:22 2009 -0400" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:30:02 2009 +0200" }, "message": "tracing: Convert event tracing code to use NR_syscalls\n\nConvert the syscalls event tracing code to use NR_syscalls, instead of\nFTRACE_SYSCALL_MAX. NR_syscalls is standard accross most arches, and\nreduces code confusion/complexity.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: H. Peter Anwin \u003chpa@zytor.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c9b4f1a84ecae57cc6599412772efa36f0d2b815b.1251146513.git.jbaron@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "cc3b13c11c567c69a6356be98d0c03ff11541d5c", "tree": "7665852e54b8ad951bfdbd898922fa3c54567f43", "parents": [ "cd0980fc8add25e8ab12fcf1051c0f20cbc7c0c0" ], "author": { "name": "Hendrik Brueckner", "email": "brueckner@linux.vnet.ibm.com", "time": "Tue Aug 25 18:02:37 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:52 2009 +0200" }, "message": "tracing: Don\u0027t trace kernel thread syscalls\n\nKernel threads don\u0027t call syscalls using the sysenter/sysexit\npath. Instead they directly call the sys_* or do_* functions\nthat implement the syscalls inside the kernel.\n\nThe current syscall tracepoints only bind the sysenter/sysexit\npath, then it has no effect to trace the kernel thread calls\nto syscalls in that path.\nSetting the TIF_SYSCALL_TRACEPOINT flag is then useless for these.\n\nActually there is only one case when a kernel thread can reach the\nusual syscall exit tracing path: when we create a kernel thread, the\nchild comes to ret_from_fork and is the fork() return is then traced.\nBut this information alone is useless, then we don\u0027t want to set the\nTIF flags for these threads.\n\nKernel threads have task_struct-\u003emm set to NULL.\n(Thanks to Heiko for that hint ;-)\nThe idea is then to check the mm field in syscall_regfunc() and\nset the flag accordingly.\n\nSigned-off-by: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nLKML-Reference: \u003c20090825160237.GG4639@cetus.boeblingen.de.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "cd0980fc8add25e8ab12fcf1051c0f20cbc7c0c0", "tree": "307fe4d60c058c016c650366db2c2761b20cfd6d", "parents": [ "7515bf59f87f19b2a17972b74230d2f91756fe3c" ], "author": { "name": "Hendrik Brueckner", "email": "brueckner@linux.vnet.ibm.com", "time": "Tue Aug 25 14:50:27 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 21:29:48 2009 +0200" }, "message": "tracing: Check invalid syscall nr while tracing syscalls\n\nMost arch syscall_get_nr() implementations returns -1 if the syscall\nnumber is not valid. Accessing the bit field without a check might\nresult in a kernel oops (at least I saw it on s390 for ftrace selftest).\n\nBefore this change, this problem did not occur, because the invalid\nsyscall number (-1) caused syscall_nr_to_meta() to return NULL.\n\nThere are at least two scenarios where syscall_get_nr() can return -1:\n\n1. For example, ptrace stores an invalid syscall number, and thus,\n tracing code resets it.\n (see do_syscall_trace_enter in arch/s390/kernel/ptrace.c)\n\n2. The syscall_regfunc() (kernel/tracepoint.c) sets the\n TIF_SYSCALL_FTRACE (now: TIF_SYSCALL_TRACEPOINT) flag for all threads\n which include kernel threads.\n However, the ftrace selftest triggers a kernel oops when testing\n syscall trace points:\n - The kernel thread is started as ususal (do_fork()),\n - tracing code sets TIF_SYSCALL_FTRACE,\n - the ret_from_fork() function is triggered and starts\n\tftrace_syscall_exit() with an invalid syscall number.\n\nTo avoid these scenarios, I suggest to check the syscall_nr.\n\nFor instance, the ftrace selftest fails for s390 (with config option\nCONFIG_FTRACE_SYSCALLS set) and produces the following kernel oops.\n\nUnable to handle kernel pointer dereference at virtual kernel address 2000000000\n\nOops: 0038 [#1] PREEMPT SMP\nModules linked in:\nCPU: 0 Not tainted 2.6.31-rc6-next-20090819-dirty #18\nProcess kthreadd (pid: 818, task: 000000003ea207e8, ksp: 000000003e813eb8)\nKrnl PSW : 0704100180000000 00000000000ea54c (ftrace_syscall_exit+0x58/0xdc)\n R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3\nKrnl GPRS: 0000000000000000 00000000000e0000 ffffffffffffffff 20000000008c2650\n 0000000000000007 0000000000000000 0000000000000000 0000000000000000\n 0000000000000000 0000000000000000 ffffffffffffffff 000000003e813d78\n 000000003e813f58 0000000000505ba8 000000003e813e18 000000003e813d78\nKrnl Code: 00000000000ea540: e330d0000008 ag %r3,0(%r13)\n 00000000000ea546: a7480007 lhi %r4,7\n 00000000000ea54a: 1442 nr %r4,%r2\n \u003e00000000000ea54c: e31030000090 llgc %r1,0(%r3)\n 00000000000ea552: 5410d008 n %r1,8(%r13)\n 00000000000ea556: 8a104000 sra %r1,0(%r4)\n 00000000000ea55a: 5410d00c n %r1,12(%r13)\n 00000000000ea55e: 1211 ltr %r1,%r1\nCall Trace:\n([\u003c0000000000000000\u003e] 0x0)\n [\u003c000000000001fa22\u003e] do_syscall_trace_exit+0x132/0x18c\n [\u003c000000000002d0c4\u003e] sysc_return+0x0/0x8\n [\u003c000000000001c738\u003e] kernel_thread_starter+0x0/0xc\nLast Breaking-Event-Address:\n [\u003c00000000000ea51e\u003e] ftrace_syscall_exit+0x2a/0xdc\n\nSigned-off-by: Hendrik Brueckner \u003cbrueckner@linux.vnet.ibm.com\u003e\nAcked-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nLKML-Reference: \u003c20090825125027.GE4639@cetus.boeblingen.de.ibm.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "35dce1a99d010f3d738af4ce1b9b77302fdfe69c", "tree": "e34a37de965a79a2ae301de4d0557f500111dde6", "parents": [ "7cb2e3ee2aeec5b83ecadba929a2dc575dd4008f", "1c569f0264ea629c10bbab471dd0626ce4d3f19f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 26 08:29:02 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 26 08:29:02 2009 +0200" }, "message": "Merge branch \u0027tracing/core\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/core\n\nConflicts:\n\tinclude/linux/tracepoint.h\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5079f3261ffd7fe4a537679af695f2328943a245", "tree": "1f9ab5128f37c3628979496610bc862b4a321cd6", "parents": [ "87a342f5db69d53ea70493bb1ec69c9047677038" ], "author": { "name": "Zhaolei", "email": "zhaolei@cn.fujitsu.com", "time": "Tue Aug 25 16:12:56 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:08 2009 -0400" }, "message": "ftrace: Move setting of clock-source out of options\n\nThere are many clock sources for the tracing system but we can only\nenable/disable one at a time with the trace/options file.\nWe can move the setting of clock-source out of options and add a separate\nfile for it:\n # cat trace_clock\n [local] global\n # echo global \u003e trace_clock\n # cat trace_clock\n local [global]\n\nSigned-off-by: Zhao Lei \u003czhaolei@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A939D08.6050604@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "87a342f5db69d53ea70493bb1ec69c9047677038", "tree": "89ec97b3a32d6508d10f1598201e48a24c08c46e", "parents": [ "43b51ead3f752a3935116e5b1a94254b8573734f" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Aug 07 10:33:43 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:07 2009 -0400" }, "message": "tracing/filters: Support filtering for char * strings\n\nUsually, char * entries are dangerous in traces because the string\ncan be released whereas a pointer to it can still wait to be read from\nthe ring buffer.\n\nBut sometimes we can assume it\u0027s safe, like in case of RO data\n(eg: __file__ or __line__, used in bkl trace event). If these RO data\nare in a module and so is the call to the trace event, then it\u0027s safe,\nbecause the ring buffer will be flushed once this module get unloaded.\n\nTo allow char * to be treated as a string:\n\n\tTRACE_EVENT(...,\n\n\t\tTP_STRUCT__entry(\n\t\t\t__field_ext(const char *, name, FILTER_PTR_STRING)\n\t\t\t...\n\t\t)\n\n\t\t...\n\t);\n\nThe filtering will not dereference \"char *\" unless the developer\nexplicitly sets FILTER_PTR_STR in __field_ext.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B9287.90205@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "43b51ead3f752a3935116e5b1a94254b8573734f", "tree": "5d9e88635c85ba7b1d273dea3c4d8d96e5000154", "parents": [ "aa38e9fc3ea804290efd3a39316d7f7e6c945800" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Aug 07 10:33:22 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:06 2009 -0400" }, "message": "tracing/filters: Add __field_ext() to TRACE_EVENT\n\nAdd __field_ext(), so a field can be assigned to a specific\nfilter_type, which matches a corresponding filter function.\n\nFor example, a later patch will allow this:\n\t__field_ext(const char *, str, FILTER_PTR_STR);\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B9272.6050709@cn.fujitsu.com\u003e\n\n[\n Fixed a -1 to FILTER_OTHER\n Forward ported to latest kernel.\n]\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "aa38e9fc3ea804290efd3a39316d7f7e6c945800", "tree": "8f9766b20c9006c1373f11c927fb46441e01df0f", "parents": [ "6591b493871cf9b17de2ba272edb8ab529a8058b" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Aug 07 10:33:02 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Aug 26 00:32:06 2009 -0400" }, "message": "tracing/filters: Add filter_type to struct ftrace_event_field\n\nThe type of a field is stored as a string in @type, and here\nwe add @filter_type which is an enum value.\n\nThis prepares for later patches, so we can specifically assign\ndifferent @filter_type for the same @type.\n\nFor example normally a \"char *\" field is treated as a ptr,\nbut we may want it to be treated as a string when doing filting.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4A7B925E.9030605@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "1c569f0264ea629c10bbab471dd0626ce4d3f19f", "tree": "00fcbf85a7318c568f468518c3aa665a200c871e", "parents": [ "97419875865859fd2403e66266c02ce028e2f5ab" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:14 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:41:48 2009 +0200" }, "message": "tracing: Create generic syscall TRACE_EVENTs\n\nThis converts the syscall_enter/exit tracepoints into TRACE_EVENTs, so\nyou can have generic ftrace events that capture all system calls with\narguments and return values. These generic events are also renamed to\nsys_enter/exit, so they\u0027re more closely aligned to the specific\nsys_enter_foo events.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-5-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "97419875865859fd2403e66266c02ce028e2f5ab", "tree": "7df6e6df767e9c8ff538a50bcae17638a1c8da99", "parents": [ "3d27d8cb34fc156beb86de2338ca4029873a5cc6" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:13 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:36:41 2009 +0200" }, "message": "tracing: Move tracepoint callbacks from declaration to definition\n\nIt\u0027s not strictly correct for the tracepoint reg/unreg callbacks to\noccur when a client is hooking up, because the actual tracepoint may not\nbe present yet. This happens to be fine for syscall, since that\u0027s in\nthe core kernel, but it would cause problems for tracepoints defined in\na module that hasn\u0027t been loaded yet. It also means the reg/unreg has\nto be EXPORTed for any modules to use the tracepoint (as in SystemTap).\n\nThis patch removes DECLARE_TRACE_WITH_CALLBACK, and instead introduces\nDEFINE_TRACE_FN which stores the callbacks in struct tracepoint. The\ncallbacks are used now when the active state of the tracepoint changes\nin set_tracepoint \u0026 disable_tracepoint.\n\nThis also introduces TRACE_EVENT_FN, so ftrace events can also provide\nregistration callbacks if needed.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-4-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "3d27d8cb34fc156beb86de2338ca4029873a5cc6", "tree": "51be3d9b84fa6a7899b69c499cb7630ebca366b0", "parents": [ "667000011927b4fcc359beac4a2447889db6d349" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:12 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:24:19 2009 +0200" }, "message": "tracing: Make syscall tracepoints conditional\n\nThe syscall enter/exit tracepoints are only supported on archs that\nHAVE_SYSCALL_TRACEPOINTS, so the declarations should be #ifdef\u0027ed.\nAlso, the definition of syscall_regfunc and syscall_unregfunc should\ndepend on this same config, rather than the ftrace-specific one.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c1251150194-1713-3-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "667000011927b4fcc359beac4a2447889db6d349", "tree": "d21f0bce17e08479885818792529d3cadf7b8003", "parents": [ "d88cb582325830698de5071fa8b8c9e933dbbcad" ], "author": { "name": "Josh Stone", "email": "jistone@redhat.com", "time": "Mon Aug 24 14:43:11 2009 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Wed Aug 26 00:17:35 2009 +0200" }, "message": "tracing: Rename FTRACE_SYSCALLS for tracepoints\n\ns/HAVE_FTRACE_SYSCALLS/HAVE_SYSCALL_TRACEPOINTS/g\ns/TIF_SYSCALL_FTRACE/TIF_SYSCALL_TRACEPOINT/g\n\nThe syscall enter/exit tracing is no longer specific to just ftrace, so\nthey now have names that reflect their tie to tracepoints instead.\n\nSigned-off-by: Josh Stone \u003cjistone@redhat.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: Jiaying Zhang \u003cjiayingz@google.com\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nLKML-Reference: \u003c1251150194-1713-2-git-send-email-jistone@redhat.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "9c9376886622b45c32f64c4444f5628dde77dfe6", "tree": "fd24a7af7a8b795cd7583ffa9e873e063a0c6ff4", "parents": [ "87bcfa33669449e517fda718ed3c2e1899e6541b", "4464fcaa9cbfc9c551956b48af203e2f775ca892" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 25 11:24:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 25 11:24:37 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:\n perf_counter: Fix typo in read() output generation\n perf tools: Check perf.data owner\n" }, { "commit": "44afa9a4b8c5773f47e6494da12ca086c9ffea34", "tree": "0945f4dbbc785382e0d7e8607897fb360f550c52", "parents": [ "7d63e6359a2e86cd6335337de99354ab07680c55", "f833bab87fca5c3ce13778421b1365845843b976" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 25 11:24:04 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 25 11:24:04 2009 -0700" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n clockevent: Prevent dead lock on clockevents_lock\n timers: Drop write permission on /proc/timer_list\n" }, { "commit": "7d63e6359a2e86cd6335337de99354ab07680c55", "tree": "8d33df8863b171a88508868c6670e0a553e44a30", "parents": [ "9f459fadbb38abe68aa342f533ca17d8d90d6f2e", "4a683bf94b8a10e2bb0da07aec3ac0a55e5de61f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 25 11:23:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 25 11:23:43 2009 -0700" }, "message": "Merge branch \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n tracing: Fix too large stack usage in do_one_initcall()\n tracing: handle broken names in ftrace filter\n ftrace: Unify effect of writing to trace_options and option/*\n" } ], "next": "c935a331c8f569c7903ed26a3994a70cbea1802e" }