)]}' { "log": [ { "commit": "b71a8eb0fa64ec6d00175f479e3ef851703568af", "tree": "b3a71df4dde15af10511a8aa54033deb90ee27f6", "parents": [ "fa3012318bfb395552baef69bb1ebe87e64945c8" ], "author": { "name": "Uwe Kleine-König", "email": "u.kleine-koenig@pengutronix.de", "time": "Tue Oct 06 12:42:51 2009 +0200" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Mon Nov 09 09:40:56 2009 +0100" }, "message": "tree-wide: fix typos \"selct\" + \"slect\" -\u003e \"select\"\n\nThis patch was generated by\n\n\tgit grep -E -i -l \u0027s(le|el)ct\u0027 | xargs -r perl -p -i -e \u0027s/([Ss])(le|el)ct/$1elect/\n\nwith only skipping net/netfilter/xt_SECMARK.c and\ninclude/linux/netfilter/xt_SECMARK.h which have a struct member called\nselctx.\n\nSigned-off-by: Uwe Kleine-König \u003cu.kleine-koenig@pengutronix.de\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "608221fdf9a2170962295dcfbea53dc5c50d1a74", "tree": "26712f2f8a8a332369df2b31174c8c5b46c42164", "parents": [ "72cc129e8dae988d2a132467cfd0ecd7623c35fb", "b84ff7d6f1b7f8a43414e74d972ec4c8f3361db4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 05 10:56:47 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 05 10:56:47 2009 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c\n sched: Disable SD_PREFER_LOCAL at node level\n sched: Fix boot crash by zalloc()ing most of the cpu masks\n sched: Strengthen buddies and mitigate buddy induced latencies\n" }, { "commit": "72cc129e8dae988d2a132467cfd0ecd7623c35fb", "tree": "e0a3fdfa3e7cb45e75727fe77558e64ec1bc9b4f", "parents": [ "411094acb70f171a111710cf32031c749ffdd28c", "ed146b25942b428f8e8056587b7638ce76573c2f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 05 10:56:25 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 05 10:56:25 2009 -0800" }, "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 ftrace: Fix unmatched locking in ftrace_regex_write()\n ring-buffer: Synchronize resizing buffer with reader lock\n" }, { "commit": "ed146b25942b428f8e8056587b7638ce76573c2f", "tree": "36b3355b5d53057accb92000ee5b3986d5a05a8b", "parents": [ "f7112949f6a4cd6883d66c882d568c2197321de6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Nov 03 08:55:38 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Nov 04 01:42:10 2009 -0500" }, "message": "ftrace: Fix unmatched locking in ftrace_regex_write()\n\nWhen a command is passed to the set_ftrace_filter, then\nthe ftrace_regex_lock is still held going back to user space.\n\n # echo \u0027do_open : foo\u0027 \u003e set_ftrace_filter\n (still holding ftrace_regex_lock when returning to user space!)\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AEF7F8A.3080300@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f7112949f6a4cd6883d66c882d568c2197321de6", "tree": "2982044acfce5f1e422be2fd7467d2f1177c5159", "parents": [ "6d3f1e12f46a2f9a1bb7e7aa433df8dd31ce5647" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Nov 03 19:42:45 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Nov 04 00:04:20 2009 -0500" }, "message": "ring-buffer: Synchronize resizing buffer with reader lock\n\nWe got a sudden panic when we reduced the size of the\nringbuffer.\n\nWe can reproduce the panic by the following steps:\n\necho 1 \u003e events/sched/enable\ncat trace_pipe \u003e /dev/null \u0026\n\nwhile ((1))\ndo\necho 12000 \u003e buffer_size_kb\necho 512 \u003e buffer_size_kb\ndone\n\n(not more than 5 seconds, panic ...)\n\nReported-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nLKML-Reference: \u003c4AF01735.9060409@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "38dc63459f185795b24a39f3f4921a433ea9980b", "tree": "205a8abc9b20c4f5573e4d2fbc03e74388cef2bc", "parents": [ "1d510750941a53a1d3049c1d33c75d6dfcd78618", "2ddac2a6a8f13e95664fe7ad1b728ac84fb1bd07" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 03 07:52:57 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 03 07:52:57 2009 -0800" }, "message": "Merge branch \u0027pm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6\n\n* \u0027pm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:\n PM: Remove some debug messages producing too much noise\n PM: Fix warning on suspend errors\n PM / Hibernate: Add newline to load_image() fail path\n PM / Hibernate: Fix error handling in save_image()\n PM / Hibernate: Fix blkdev refleaks\n PM / yenta: Split resume into early and late parts (rev. 4)\n" }, { "commit": "1d510750941a53a1d3049c1d33c75d6dfcd78618", "tree": "03f501224f839aa897cf540e29595aeda8551052", "parents": [ "1c211849d893b14cc923a18708923954fdd2c63e" ], "author": { "name": "Ian Campbell", "email": "Ian.Campbell@citrix.com", "time": "Tue Nov 03 10:11:14 2009 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 03 07:52:39 2009 -0800" }, "message": "Correct nr_processes() when CPUs have been unplugged\n\nnr_processes() returns the sum of the per cpu counter process_counts for\nall online CPUs. This counter is incremented for the current CPU on\nfork() and decremented for the current CPU on exit(). Since a process\ndoes not necessarily fork and exit on the same CPU the process_count for\nan individual CPU can be either positive or negative and effectively has\nno meaning in isolation.\n\nTherefore calculating the sum of process_counts over only the online\nCPUs omits the processes which were started or stopped on any CPU which\nhas since been unplugged. Only the sum of process_counts across all\npossible CPUs has meaning.\n\nThe only caller of nr_processes() is proc_root_getattr() which\ncalculates the number of links to /proc as\n stat-\u003enlink \u003d proc_root.nlink + nr_processes();\n\nYou don\u0027t have to be all that unlucky for the nr_processes() to return a\nnegative value leading to a negative number of links (or rather, an\napparently enormous number of links). If this happens then you can get\nfailures where things like \"ls /proc\" start to fail because they got an\n-EOVERFLOW from some stat() call.\n\nExample with some debugging inserted to show what goes on:\n # ps haux|wc -l\n nr_processes: CPU0: 90\n nr_processes: CPU1: 1030\n nr_processes: CPU2: -900\n nr_processes: CPU3: -136\n nr_processes: TOTAL: 84\n proc_root_getattr. nlink 12 + nr_processes() 84 \u003d 96\n 84\n # echo 0 \u003e/sys/devices/system/cpu/cpu1/online\n # ps haux|wc -l\n nr_processes: CPU0: 85\n nr_processes: CPU2: -901\n nr_processes: CPU3: -137\n nr_processes: TOTAL: -953\n proc_root_getattr. nlink 12 + nr_processes() -953 \u003d -941\n 75\n # stat /proc/\n nr_processes: CPU0: 84\n nr_processes: CPU2: -901\n nr_processes: CPU3: -137\n nr_processes: TOTAL: -954\n proc_root_getattr. nlink 12 + nr_processes() -954 \u003d -942\n File: `/proc/\u0027\n Size: 0 Blocks: 0 IO Block: 1024 directory\n Device: 3h/3d Inode: 1 Links: 4294966354\n Access: (0555/dr-xr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)\n Access: 2009-11-03 09:06:55.000000000 +0000\n Modify: 2009-11-03 09:06:55.000000000 +0000\n Change: 2009-11-03 09:06:55.000000000 +0000\n\nI\u0027m not 100% convinced that the per_cpu regions remain valid for offline\nCPUs, although my testing suggests that they do. If not then I think the\ncorrect solution would be to aggregate the process_count for a given CPU\ninto a global base value in cpu_down().\n\nThis bug appears to pre-date the transition to git and it looks like it\nmay even have been present in linux-2.6.0-test7-bk3 since it looks like\nthe code Rusty patched in http://lwn.net/Articles/64773/ was already\nwrong.\n\nSigned-off-by: Ian Campbell \u003cian.campbell@citrix.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bf9fd67a0328d56eff6022f80d4eb88ba6614119", "tree": "e2621ab848a7ad7cae2397e0356ece7e2eeea452", "parents": [ "4ff277f9e42fa16314045bd124a61519286094c0" ], "author": { "name": "Jiri Slaby", "email": "jirislaby@gmail.com", "time": "Wed Oct 28 22:55:42 2009 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 03 11:03:09 2009 +0100" }, "message": "PM / Hibernate: Add newline to load_image() fail path\n\nFinish a line by \\n when load_image fails in the middle of loading.\n\nSigned-off-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "4ff277f9e42fa16314045bd124a61519286094c0", "tree": "59c00800cead3926938a68145dcddba4b9ad160f", "parents": [ "76b57e613f6006ff525a17876c89326d127cadc9" ], "author": { "name": "Jiri Slaby", "email": "jirislaby@gmail.com", "time": "Wed Oct 28 22:55:33 2009 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 03 11:02:43 2009 +0100" }, "message": "PM / Hibernate: Fix error handling in save_image()\n\nThere are too many retval variables in save_image(). Thus error return\nvalue from snapshot_read_next() may be ignored and only part of the\nsnapshot (successfully) written.\n\nRemove \u0027error\u0027 variable, invert the condition in the do-while loop\nand convert the loop to use only \u0027ret\u0027 variable.\n\nSwitch the rest of the function to consider only \u0027ret\u0027.\n\nAlso make sure we end printed line by \\n if an error occurs.\n\nSigned-off-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "76b57e613f6006ff525a17876c89326d127cadc9", "tree": "244d876f24581fb40d1900003c55b1c7ca5abb91", "parents": [ "9905d1b411946fb3fb228e8c6529fd94afda8a92" ], "author": { "name": "Jiri Slaby", "email": "jirislaby@gmail.com", "time": "Wed Oct 07 22:37:35 2009 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 03 11:01:46 2009 +0100" }, "message": "PM / Hibernate: Fix blkdev refleaks\n\nWhile cruising through the swsusp code I found few blkdev reference\nleaks of resume_bdev.\n\nswsusp_read: remove blkdev_put altogether. Some fail paths do\n not do that.\nswsusp_check: make sure we always put a reference on fail paths\nsoftware_resume: all fail paths between swsusp_check and swsusp_read\n omit swsusp_close. Add it in those cases. And since\n swsusp_read doesn\u0027t drop the reference anymore, do\n it here unconditionally.\n\n[rjw: Fixed a small coding style issue.]\n\nSigned-off-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "b84ff7d6f1b7f8a43414e74d972ec4c8f3361db4", "tree": "7e8db08b8dd7d28780f3d08466928c907e5e0440", "parents": [ "6b9de613ae9c79b637e070136585dde029578065" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Thu Oct 29 11:48:30 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Nov 03 07:25:00 2009 +0100" }, "message": "sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c\n\nEric Paris reported that commit\nf685ceacab07d3f6c236f04803e2f2f0dbcc5afb causes boot time\nPREEMPT_DEBUG complaints.\n\n [ 4.590699] BUG: using smp_processor_id() in preemptible [00000000] code: rmmod/1314\n [ 4.593043] caller is task_hot+0x86/0xd0\n\nSince kthread_bind() messes with scheduler internals, move the\nbody to sched.c, and lock the runqueue.\n\nReported-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nTested-by: Eric Paris \u003ceparis@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1256813310.7574.3.camel@marge.simson.net\u003e\n[ v2: fix !SMP build and clean up ]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3fe866ca6cc0495510a1d37c03a4abdc55174e83", "tree": "4b3d4ae603b01e2f9179d29402d5946ff50eb28f", "parents": [ "bce8fc4cb796dc77ea71699ef88802879a177474", "11df6dddcbc38affb7473aad3d962baf8414a947" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 02 09:46:33 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 02 09:46:33 2009 -0800" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n futex: Fix spurious wakeup for requeue_pi really\n" }, { "commit": "bce8fc4cb796dc77ea71699ef88802879a177474", "tree": "683ff9f2def12d390af0ae2dc2326b4d9f85a1cd", "parents": [ "a5e3013d6612d2ed4aefdcd7920ae01df3b63b3a", "ec29b8d2af01912bb79adda8aeab4293539f29ac" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 02 09:46:06 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 02 09:46:06 2009 -0800" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tools: Remove -Wcast-align\n perf tools: Fix compatibility with libelf 0.8 and autodetect\n perf events: Don\u0027t generate events for the idle task when exclude_idle is set\n perf events: Fix swevent hrtimer sampling by keeping track of remaining time when enabling/disabling swevent hrtimers\n" }, { "commit": "a5e3013d6612d2ed4aefdcd7920ae01df3b63b3a", "tree": "89dce7d51c11ea56150e4f5613a28369e238f90e", "parents": [ "efcd9e0b91bcb92a1dd530d1a1f26eb83a5d21e2", "6d3f1e12f46a2f9a1bb7e7aa433df8dd31ce5647" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 02 09:45:44 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 02 09:45:44 2009 -0800" }, "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: Remove cpu arg from the rb_time_stamp() function\n tracing: Fix comment typo and documentation example\n tracing: Fix trace_seq_printf() return value\n tracing: Update *ppos instead of filp-\u003ef_pos\n" }, { "commit": "49557e620339cb134127b5bfbcfecc06b77d0232", "tree": "a2a73c84a384243a63c1b8e8462c39381d5ef98e", "parents": [ "f685ceacab07d3f6c236f04803e2f2f0dbcc5afb" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Nov 02 20:37:20 2009 +1030" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Nov 02 15:48:54 2009 +0100" }, "message": "sched: Fix boot crash by zalloc()ing most of the cpu masks\n\nI got a boot crash when forcing cpumasks offstack on 32 bit,\nbecause find_new_ilb() returned 3 on my UP system (nohz.cpu_mask\nwasn\u0027t zeroed).\n\nAFAICT the others need to be zeroed too: only\nnohz.ilb_grp_nohz_mask is initialized before use.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c200911022037.21282.rusty@rustcorp.com.au\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8633322c5fd5b2a986b279f88a7559d8409f7da3", "tree": "2db612751e9fa5c3624f008c7e4d520e77944852", "parents": [ "9532faeb293f5a5f0ff06f567de14e557698dbde", "4a6cc4bd32e580722882115d4c8b964d732c11e4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 09:19:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 09:19:29 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:\n sched: move rq_weight data array out of .percpu\n percpu: allow pcpu_alloc() to be called with IRQs off\n" }, { "commit": "9532faeb293f5a5f0ff06f567de14e557698dbde", "tree": "46319ff2506340b56b34801e3a722bbaf28d55bf", "parents": [ "add810a1c58ba9edb6076ababe5861f36c049217", "3c7d76e371ac1a3802ae1673f5c63554af59325c" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 09:18:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 09:18:20 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-param-fixes\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-param-fixes:\n param: fix setting arrays of bool\n param: fix NULL comparison on oom\n param: fix lots of bugs with writing charp params from sysfs, by leaking mem.\n" }, { "commit": "3242f9804ba992c867360e2b57efc268b8e4e175", "tree": "96fbdbc1344aa67588ce26765f308c674b91a75f", "parents": [ "23756692147c5dfd3328afd42e16e9d943ff756c", "7456b0405d8fc063c49628f969cdb23be060fc80" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:20:00 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:20:00 2009 -0700" }, "message": "Merge branch \u0027hwpoison-2.6.32\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6\n\n* \u0027hwpoison-2.6.32\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6:\n HWPOISON: fix invalid page count in printk output\n HWPOISON: Allow schedule_on_each_cpu() from keventd\n HWPOISON: fix/proc/meminfo alignment\n HWPOISON: fix oops on ksm pages\n HWPOISON: Fix page count leak in hwpoison late kill in do_swap_page\n HWPOISON: return early on non-LRU pages\n HWPOISON: Add brief hwpoison description to Documentation\n HWPOISON: Clean up PR_MCE_KILL interface\n" }, { "commit": "fefcfd431b5181615e7da628e34c5227c895b85a", "tree": "0da42ba9d66c6e9a12b6352b5be41f2fa023c91b", "parents": [ "37c2ca24119f7dd89cbbb43833df1e6c5fb3417b", "89061d3d58e1f0742139605dc6a7950aa1ecc019" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:12:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:12:20 2009 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n futex: Move drop_futex_key_refs out of spinlock\u0027ed region\n rcu: Fix TREE_PREEMPT_RCU CPU_HOTPLUG bad-luck hang\n rcu: Stopgap fix for synchronize_rcu_expedited() for TREE_PREEMPT_RCU\n rcu: Prevent RCU IPI storms in presence of high call_rcu() load\n futex: Check for NULL keys in match_futex\n futex: Handle spurious wake up\n" }, { "commit": "37c2ca24119f7dd89cbbb43833df1e6c5fb3417b", "tree": "7002e816ca784acbdd49c69752e08c4da00fe961", "parents": [ "6e958d73c25eecaf02a1998cda9ec8ce8da11042", "2e600d01c131ee189f55ca1879cd364b9e056df8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:12:00 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:12:00 2009 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf timechart: Improve the visual appearance of scheduler delays\n perf timechart: Fix the wakeup-arrows that point to non-visible processes\n perf top: Fix --delay_secs 0 division by zero\n perf tools: Bump version to 0.0.2\n perf_event: Adjust frequency and unthrottle for non-group-leader events\n" }, { "commit": "6e958d73c25eecaf02a1998cda9ec8ce8da11042", "tree": "94b8d48d268297925aa02f8ab358274f878bae9e", "parents": [ "7811a32407b971d9086c46403124f1453b95c430", "92f6a5e37a2e2d3342dafb2b39c2f8bc340bbf84" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:10:38 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 08:10:38 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Do less agressive buddy clearing\n sched: Disable SD_PREFER_LOCAL for MC/CPU domains\n" }, { "commit": "8c85dd8730bfb696e691145335f884c7baef8277", "tree": "2dca1aac534a4322695c12b2870b7c25cf60ccbe", "parents": [ "115a57c5b31ab560574fe1a09deaba2ae89e77b5" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Mon Oct 26 16:50:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 07:39:30 2009 -0700" }, "message": "sysctl: fix false positives when PROC_SYSCTL\u003dn\n\nHaving -\u003eprocname but not -\u003eproc_handler is valid when PROC_SYSCTL\u003dn,\npeople use such combination to reduce ifdefs with non-standard handlers.\n\nAddresses http://bugzilla.kernel.org/show_bug.cgi?id\u003d14408\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nReported-by: Peter Teoh \u003chtmldeveloper@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "478988d3b28e98a31e0cfe24e011e28ba0f3cf0d", "tree": "0f14f3a2f242258d2d7a0ddb3025c308f666b7ee", "parents": [ "58355c7876a0754377c37c8af948b4cd423410e2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Oct 26 16:49:36 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 07:39:25 2009 -0700" }, "message": "cgroup: fix strstrip() misuse\n\ncgroup_write_X64() and cgroup_write_string() ignore the return value of\nstrstrip(). it makes small inconsistent behavior.\n\nexample:\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n # cd /mnt/cgroup/hoge\n # cat memory.swappiness\n 60\n # echo \"59 \" \u003e memory.swappiness\n # cat memory.swappiness\n 59\n # echo \" 58\" \u003e memory.swappiness\n bash: echo: write error: Invalid argument\n\nThis patch fixes it.\n\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d0df599f1f11f12d589318bacb59a50fb5c0310", "tree": "084ab3d1562502ad6a056aa3fd8dd748683c8c2f", "parents": [ "370c28def65b3a5765192753a164403619b41d01" ], "author": { "name": "Christian Borntraeger", "email": "borntraeger@de.ibm.com", "time": "Mon Oct 26 16:49:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 29 07:39:25 2009 -0700" }, "message": "connector: fix regression introduced by sid connector\n\nSince commit 02b51df1b07b4e9ca823c89284e704cadb323cd1 (proc connector: add\nevent for process becoming session leader) we have the following warning:\n\nBadness at kernel/softirq.c:143\n[...]\nKrnl PSW : 0404c00180000000 00000000001481d4 (local_bh_enable+0xb0/0xe0)\n[...]\nCall Trace:\n([\u003c000000013fe04100\u003e] 0x13fe04100)\n [\u003c000000000048a946\u003e] sk_filter+0x9a/0xd0\n [\u003c000000000049d938\u003e] netlink_broadcast+0x2c0/0x53c\n [\u003c00000000003ba9ae\u003e] cn_netlink_send+0x272/0x2b0\n [\u003c00000000003baef0\u003e] proc_sid_connector+0xc4/0xd4\n [\u003c0000000000142604\u003e] __set_special_pids+0x58/0x90\n [\u003c0000000000159938\u003e] sys_setsid+0xb4/0xd8\n [\u003c00000000001187fe\u003e] sysc_noemu+0x10/0x16\n [\u003c00000041616cb266\u003e] 0x41616cb266\n\nThe warning is\n---\u003e WARN_ON_ONCE(in_irq() || irqs_disabled());\n\nThe network code must not be called with disabled interrupts but\nsys_setsid holds the tasklist_lock with spinlock_irq while calling the\nconnector.\n\nAfter a discussion we agreed that we can move proc_sid_connector from\n__set_special_pids to sys_setsid.\n\nWe also agreed that it is sufficient to change the check from\ntask_session(curr) !\u003d pid into err \u003e 0, since if we don\u0027t change the\nsession, this means we were already the leader and return -EPERM.\n\nOne last thing:\nThere is also daemonize(), and some people might want to get a\nnotification in that case. Since daemonize() is only needed if a user\nspace does kernel_thread this does not look important (and there seems\nto be no consensus if this connector should be called in daemonize). If\nwe really want this, we can add proc_sid_connector to daemonize() in an\nadditional patch (Scott?)\n\nSigned-off-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nCc: Scott James Remnant \u003cscott@ubuntu.com\u003e\nCc: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Evgeniy Polyakov \u003czbr@ioremap.net\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3c7d76e371ac1a3802ae1673f5c63554af59325c", "tree": "6b8d84acb92196b0f9f044f98fd1908f8f655c87", "parents": [ "d553ad864e3b3dde3f1038d491e207021b2d6293" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Oct 29 08:56:19 2009 -0600" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Oct 29 08:56:20 2009 +1030" }, "message": "param: fix setting arrays of bool\n\nWe create a dummy struct kernel_param on the stack for parsing each\narray element, but we didn\u0027t initialize the flags word. This matters\nfor arrays of type \"bool\", where the flag indicates if it really is\nan array of bools or unsigned int (old-style).\n\nReported-by: Takashi Iwai \u003ctiwai@suse.de\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: stable@kernel.org\n" }, { "commit": "d553ad864e3b3dde3f1038d491e207021b2d6293", "tree": "2a6d4e482e72daf6056e1fb984407754e019f15a", "parents": [ "65afac7d80ab3bc9f81e75eafb71eeb92a3ebdef" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Oct 29 08:56:17 2009 -0600" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Oct 29 08:56:18 2009 +1030" }, "message": "param: fix NULL comparison on oom\n\nkp-\u003earg is always true: it\u0027s the contents of that pointer we care about.\n\nReported-by: Takashi Iwai \u003ctiwai@suse.de\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: stable@kernel.org\n" }, { "commit": "65afac7d80ab3bc9f81e75eafb71eeb92a3ebdef", "tree": "544c1e9192d8e47f1d1b1d54e36365f393ec7be0", "parents": [ "964fe080d94db82a3268443e9b9ece4c60246414" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Oct 29 08:56:16 2009 -0600" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Thu Oct 29 08:56:17 2009 +1030" }, "message": "param: fix lots of bugs with writing charp params from sysfs, by leaking mem.\n\ne180a6b7759a \"param: fix charp parameters set via sysfs\" fixed the case\nwhere charp parameters written via sysfs were freed, leaving drivers\naccessing random memory.\n\nUnfortunately, storing a flag in the kparam struct was a bad idea: it\u0027s\nrodata so setting it causes an oops on some archs. But that\u0027s not all:\n\n1) module_param_array() on charp doesn\u0027t work reliably, since we use an\n uninitialized temporary struct kernel_param.\n2) there\u0027s a fundamental race if a module uses this parameter and then\n it\u0027s changed: they will still access the old, freed, memory.\n\nThe simplest fix (ie. for 2.6.32) is to never free the memory. This\nprevents all these problems, at cost of a memory leak. In practice, there\nare only 18 places where a charp is writable via sysfs, and all are\nroot-only writable.\n\nReported-by: Takashi Iwai \u003ctiwai@suse.de\u003e\nCc: Sitsofe Wheeler \u003csitsofe@yahoo.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Christof Schmitt \u003cchristof.schmitt@de.ibm.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: stable@kernel.org\n" }, { "commit": "11df6dddcbc38affb7473aad3d962baf8414a947", "tree": "fb05ef2583a55e69897988491522b92137ca5f26", "parents": [ "89061d3d58e1f0742139605dc6a7950aa1ecc019" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 28 20:26:48 2009 +0100" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 28 20:34:34 2009 +0100" }, "message": "futex: Fix spurious wakeup for requeue_pi really\n\nThe requeue_pi path doesn\u0027t use unqueue_me() (and the racy lock_ptr \u003d\u003d\nNULL test) nor does it use the wake_list of futex_wake() which where\nthe reason for commit 41890f2 (futex: Handle spurious wake up)\n\nSee debugging discussing on LKML Message-ID: \u003c4AD4080C.20703@us.ibm.com\u003e\n\nThe changes in this fix to the wait_requeue_pi path were considered to\nbe a likely unecessary, but harmless safety net. But it turns out that\ndue to the fact that for unknown $@#!*( reasons EWOULDBLOCK is defined\nas EAGAIN we built an endless loop in the code path which returns\ncorrectly EWOULDBLOCK.\n\nSpurious wakeups in wait_requeue_pi code path are unlikely so we do\nthe easy solution and return EWOULDBLOCK^WEAGAIN to user space and let\nit deal with the spurious wakeup.\n\nCc: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: John Stultz \u003cjohnstul@linux.vnet.ibm.com\u003e\nCc: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nLKML-Reference: \u003c4AE23C74.1090502@us.ibm.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "4a6cc4bd32e580722882115d4c8b964d732c11e4", "tree": "dbfa457caf9a65231f2f55c1ad03cf4d6f16f67c", "parents": [ "403a91b1659cb149dbddc5885f892734ae4542d8" ], "author": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Thu Oct 29 00:26:00 2009 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Thu Oct 29 00:26:00 2009 +0900" }, "message": "sched: move rq_weight data array out of .percpu\n\nCommit 34d76c41 introduced percpu array update_shares_data, size of which\nbeing proportional to NR_CPUS. Unfortunately this blows up ia64 for large\nNR_CPUS configuration, as ia64 allows only 64k for .percpu section.\n\nFix this by allocating this array dynamically and keep only pointer to it\npercpu.\n\nThe per-cpu handling doesn\u0027t impose significant performance penalty on\npotentially contented path in tg_shares_up().\n\n...\nffffffff8104337c: 65 48 8b 14 25 20 cd mov %gs:0xcd20,%rdx\nffffffff81043383: 00 00\nffffffff81043385: 48 c7 c0 00 e1 00 00 mov $0xe100,%rax\nffffffff8104338c: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp)\nffffffff81043393: 00\nffffffff81043394: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp)\nffffffff8104339b: 00\nffffffff8104339c: 48 01 d0 add %rdx,%rax\nffffffff8104339f: 49 8d 94 24 08 01 00 lea 0x108(%r12),%rdx\nffffffff810433a6: 00\nffffffff810433a7: b9 ff ff ff ff mov $0xffffffff,%ecx\nffffffff810433ac: 48 89 45 b0 mov %rax,-0x50(%rbp)\nffffffff810433b0: bb 00 04 00 00 mov $0x400,%ebx\nffffffff810433b5: 48 89 55 c0 mov %rdx,-0x40(%rbp)\n...\n\nAfter:\n\n...\nffffffff8104337c: 65 8b 04 25 28 cd 00 mov %gs:0xcd28,%eax\nffffffff81043383: 00\nffffffff81043384: 48 98 cltq\nffffffff81043386: 49 8d bc 24 08 01 00 lea 0x108(%r12),%rdi\nffffffff8104338d: 00\nffffffff8104338e: 48 8b 15 d3 7f 76 00 mov 0x767fd3(%rip),%rdx # ffffffff817ab368 \u003cupdate_shares_data\u003e\nffffffff81043395: 48 8b 34 c5 00 ee 6d mov -0x7e921200(,%rax,8),%rsi\nffffffff8104339c: 81\nffffffff8104339d: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp)\nffffffff810433a4: 00\nffffffff810433a5: b9 ff ff ff ff mov $0xffffffff,%ecx\nffffffff810433aa: 48 89 7d c0 mov %rdi,-0x40(%rbp)\nffffffff810433ae: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp)\nffffffff810433b5: 00\nffffffff810433b6: bb 00 04 00 00 mov $0x400,%ebx\nffffffff810433bb: 48 01 f2 add %rsi,%rdx\nffffffff810433be: 48 89 55 b0 mov %rdx,-0x50(%rbp)\n...\n\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "6d3f1e12f46a2f9a1bb7e7aa433df8dd31ce5647", "tree": "0c08371aefcf53b976d61e6a74667bcb21db3251", "parents": [ "67b394f7f26d84edb7294cc6528ab7ca6daa2ad1" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Oct 23 19:36:19 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Oct 24 11:07:51 2009 +0200" }, "message": "tracing: Remove cpu arg from the rb_time_stamp() function\n\nThe cpu argument is not used inside the rb_time_stamp() function.\nPlus fix a typo.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20091023233647.118547500@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "67b394f7f26d84edb7294cc6528ab7ca6daa2ad1", "tree": "3daea2ece0ff6eefc261cfdf42eb7b4a90a96799", "parents": [ "3e69533b51930a7169235db2caf703884e6e3bbb" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Oct 23 19:36:18 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Oct 24 11:07:50 2009 +0200" }, "message": "tracing: Fix comment typo and documentation example\n\nTrivial patch to fix a documentation example and to fix a\ncomment.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20091023233646.871719877@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3e69533b51930a7169235db2caf703884e6e3bbb", "tree": "4cd0fe383dcb9eab2b0f944f227caffa3cdcd209", "parents": [ "cf8517cf905b5cd31d5790250b9ac39f7cb8aa53" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Oct 23 19:36:17 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Oct 24 11:07:50 2009 +0200" }, "message": "tracing: Fix trace_seq_printf() return value\n\ntrace_seq_printf() return value is a little ambiguous. It\ncurrently returns the length of the space available in the\nbuffer. printf usually returns the amount written. This is not\nadequate here, because:\n\n trace_seq_printf(s, \"\");\n\nis perfectly legal, and returning 0 would indicate that it\nfailed.\n\nWe can always see the amount written by looking at the before\nand after values of s-\u003elen. This is not quite the same use as\nprintf. We only care if the string was successfully written to\nthe buffer or not.\n\nMake trace_seq_printf() return 0 if the trace oversizes the\nbuffer\u0027s free space, 1 otherwise.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20091023233646.631787612@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cf8517cf905b5cd31d5790250b9ac39f7cb8aa53", "tree": "22796f676ce955ec204ece1485dac6e93d1aeb3e", "parents": [ "964fe080d94db82a3268443e9b9ece4c60246414" ], "author": { "name": "Jiri Olsa", "email": "jolsa@redhat.com", "time": "Fri Oct 23 19:36:16 2009 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sat Oct 24 11:07:49 2009 +0200" }, "message": "tracing: Update *ppos instead of filp-\u003ef_pos\n\nInstead of directly updating filp-\u003ef_pos we should update the *ppos\nargument. The filp-\u003ef_pos gets updated within the file_pos_write()\nfunction called from sys_write().\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c20091023233646.399670810@goodmis.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f685ceacab07d3f6c236f04803e2f2f0dbcc5afb", "tree": "f5fbbb177ccb784ffa6d6224b7b8f0cb8a096bb9", "parents": [ "92f6a5e37a2e2d3342dafb2b39c2f8bc340bbf84" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Fri Oct 23 23:09:22 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 23 23:48:28 2009 +0200" }, "message": "sched: Strengthen buddies and mitigate buddy induced latencies\n\nThis patch restores the effectiveness of LAST_BUDDY in preventing\npgsql+oltp from collapsing due to wakeup preemption. It also\nswitches LAST_BUDDY to exclusively do what it does best, namely\nmitigate the effects of aggressive wakeup preemption, which\nimproves vmark throughput markedly, and restores mysql+oltp\nscalability.\n\nSince buddies are about scalability, enable them beginning at the\npoint where we begin expanding sched_latency, namely\nsched_nr_latency. Previously, buddies were cleared aggressively,\nwhich seriously reduced their effectiveness. Not clearing\naggressively however, produces a small drop in mysql+oltp\nthroughput immediately after peak, indicating that LAST_BUDDY is\nactually doing some harm. This is right at the point where X on the\ndesktop in competition with another load wants low latency service.\nErgo, do not enable until we need to scale.\n\nTo mitigate latency induced by buddies, or by a task just missing\nwakeup preemption, check latency at tick time.\n\nLast hunk prevents buddies from stymieing BALANCE_NEWIDLE via\nCACHE_HOT_BUDDY.\n\nSupporting performance tests:\n\n tip \u003d v2.6.32-rc5-1497-ga525b32\n tipx \u003d NO_GENTLE_FAIR_SLEEPERS NEXT_BUDDY granularity knobs \u003d 31 knobs + 31 buddies\n tip+x \u003d NO_GENTLE_FAIR_SLEEPERS granularity knobs \u003d 31 knobs\n\n(Three run averages except where noted.)\n\n vmark:\n ------\n tip 108466 messages per second\n tip+ 125307 messages per second\n tip+x 125335 messages per second\n tipx 117781 messages per second\n 2.6.31.3 122729 messages per second\n\n mysql+oltp:\n -----------\n clients 1 2 4 8 16 32 64 128 256\n ..........................................................................................\n tip 9949.89 18690.20 34801.24 34460.04 32682.88 30765.97 28305.27 25059.64 19548.08\n tip+ 10013.90 18526.84 34900.38 34420.14 33069.83 32083.40 30578.30 28010.71 25605.47\n tipx 9698.71 18002.70 34477.56 33420.01 32634.30 31657.27 29932.67 26827.52 21487.18\n 2.6.31.3 8243.11 18784.20 34404.83 33148.38 31900.32 31161.90 29663.81 25995.94 18058.86\n\n pgsql+oltp:\n -----------\n clients 1 2 4 8 16 32 64 128 256\n ..........................................................................................\n tip 13686.37 26609.25 51934.28 51347.81 49479.51 45312.65 36691.91 26851.57 24145.35\n tip+ (1x) 13907.85 27135.87 52951.98 52514.04 51742.52 50705.43 49947.97 48374.19 46227.94\n tip+x 13906.78 27065.81 52951.19 52542.59 52176.11 51815.94 50838.90 49439.46 46891.00\n tipx 13742.46 26769.81 52351.99 51891.73 51320.79 50938.98 50248.65 48908.70 46553.84\n 2.6.31.3 13815.35 26906.46 52683.34 52061.31 51937.10 51376.80 50474.28 49394.47 47003.25\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "54f4407608c59712a8f5ec1e10dfac40bef5a2e7", "tree": "78ab139c78b084d597c3a198b0b713b89ce23da5", "parents": [ "721a669b7225edeeb0ca8e2bf71b83882326a71b" ], "author": { "name": "Soeren Sandmann", "email": "sandmann@daimi.au.dk", "time": "Thu Oct 22 18:34:08 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 23 09:35:02 2009 +0200" }, "message": "perf events: Don\u0027t generate events for the idle task when exclude_idle is set\n\nGetting samples for the idle task is often not interesting, so\ndon\u0027t generate them when exclude_idle is set for the event in\nquestion.\n\nSigned-off-by: Søren Sandmann Pedersen \u003csandmann@redhat.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nLKML-Reference: \u003cye8pr8fmlq7.fsf@camel16.daimi.au.dk\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "721a669b7225edeeb0ca8e2bf71b83882326a71b", "tree": "51bc7438941db50224489091eed677ba67decf56", "parents": [ "2e600d01c131ee189f55ca1879cd364b9e056df8" ], "author": { "name": "Soeren Sandmann", "email": "sandmann@daimi.au.dk", "time": "Tue Sep 15 14:33:08 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 23 09:35:02 2009 +0200" }, "message": "perf events: Fix swevent hrtimer sampling by keeping track of remaining time when enabling/disabling swevent hrtimers\n\nMake the hrtimer based events work for sysprof.\n\nWhenever a swevent is scheduled out, the hrtimer is canceled.\nWhen it is scheduled back in, the timer is restarted. This\nhappens every scheduler tick, which means the timer never\nexpired because it was getting repeatedly restarted over and\nover with the same period.\n\nTo fix that, save the remaining time when disabling; when\nreenabling, use that saved time as the period instead of the\nuser-specified sampling period.\n\nAlso, move the starting and stopping of the hrtimers to helper\nfunctions instead of duplicating the code.\n\nSigned-off-by: Søren Sandmann Pedersen \u003csandmann@redhat.com\u003e\nLKML-Reference: \u003cye8vdi7mluz.fsf@camel16.daimi.au.dk\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "04bf7539c08d64184736cdc5e4ad617eda77eb0f", "tree": "b5fd1d3877e2a781a7953c408fdbde952acbdbc6", "parents": [ "af2bd9d534ca9f1ffdeb0780fb8508e71ed55803" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Oct 20 06:45:02 2009 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 22 08:23:45 2009 +0900" }, "message": "PM: Make warning in suspend_test_finish() less likely to happen\n\nIncrease TEST_SUSPEND_SECONDS to 10 so the warning in\nsuspend_test_finish() doesn\u0027t annoy the users of slower systems so much.\n\nAlso, make the warning print the suspend-resume cycle time, so that we\nknow why the warning actually triggered.\n\nPatch prepared during the hacking session at the Kernel Summit in Tokyo.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "65a64464349883891e21e74af16c05d6e1eeb4e9", "tree": "7b4744f01840c337506dbb24debe5e50ee76186e", "parents": [ "5d5429af066b8896e903d829ac143711ed2c25f2" ], "author": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Wed Oct 14 06:22:47 2009 +0200" }, "committer": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Mon Oct 19 07:29:22 2009 +0200" }, "message": "HWPOISON: Allow schedule_on_each_cpu() from keventd\n\nRight now when calling schedule_on_each_cpu() from keventd there\nis a deadlock because it tries to schedule a work item on the current CPU\ntoo. This happens via lru_add_drain_all() in hwpoison.\n\nJust call the function for the current CPU in this case. This is actually\nfaster too.\n\nDebugging with Fengguang Wu \u0026 Max Asbock\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\n" }, { "commit": "89061d3d58e1f0742139605dc6a7950aa1ecc019", "tree": "4bf78b9d0834975b6e615ced614c74c67d57d52d", "parents": [ "237c80c5c8fb7ec128cf2a756b550dc41ad7eac7" ], "author": { "name": "Darren Hart", "email": "dvhltc@us.ibm.com", "time": "Thu Oct 15 15:30:48 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 16 10:19:18 2009 +0200" }, "message": "futex: Move drop_futex_key_refs out of spinlock\u0027ed region\n\nWhen requeuing tasks from one futex to another, the reference held\nby the requeued task to the original futex location needs to be\ndropped eventually.\n\nDropping the reference may ultimately lead to a call to\n\"iput_final\" and subsequently call into filesystem- specific code -\nwhich may be non-atomic.\n\nIt is therefore safer to defer this drop operation until after the\nfutex_hash_bucket spinlock has been dropped.\n\nOriginally-From: Helge Bahmann \u003chcb@chaoticmind.net\u003e\nSigned-off-by: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nCc: \u003cstable@kernel.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nCc: John Stultz \u003cjohnstul@linux.vnet.ibm.com\u003e\nCc: Sven-Thorsten Dietrich \u003csdietrich@novell.com\u003e\nCc: John Kacur \u003cjkacur@redhat.com\u003e\nLKML-Reference: \u003c4AD7A298.5040802@us.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bd0704111e625ebe75418531550cf471215c3267", "tree": "e9f59d817acea309ce9b2ddb4574dfeb4e153e5a", "parents": [ "a3ccf63ee643ef243cbf8918da8b3f9238f10029", "97ad5a034dcc164269d0b8a5cb3e827b33455c11" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 15 14:59:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 15 14:59:24 2009 -0700" }, "message": "Merge the right tty-fixes branch\n\n* branch \u0027tty-fixes\u0027\n tty: use the new \u0027flush_delayed_work()\u0027 helper to do ldisc flush\n workqueue: add \u0027flush_delayed_work()\u0027 to run and wait for delayed work\n tty: Make flush_to_ldisc() locking more robust\n" }, { "commit": "237c80c5c8fb7ec128cf2a756b550dc41ad7eac7", "tree": "5d6b3346f2c53cd3f7471001479a8dbd741533a3", "parents": [ "019129d595caaa5bd0b41d128308da1be6a91869" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Thu Oct 15 09:26:14 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Oct 15 20:33:01 2009 +0200" }, "message": "rcu: Fix TREE_PREEMPT_RCU CPU_HOTPLUG bad-luck hang\n\nIf the following sequence of events occurs, then\nTREE_PREEMPT_RCU will hang waiting for a grace period to\ncomplete, eventually OOMing the system:\n\no\tA TREE_PREEMPT_RCU build of the kernel is booted on a system\n\twith more than 64 physical CPUs present (32 on a 32-bit system).\n\tAlternatively, a TREE_PREEMPT_RCU build of the kernel is booted\n\twith RCU_FANOUT set to a sufficiently small value that the\n\tphysical CPUs populate two or more leaf rcu_node structures.\n\no\tA task is preempted in an RCU read-side critical section\n\twhile running on a CPU corresponding to a given leaf rcu_node\n\tstructure.\n\no\tAll CPUs corresponding to this same leaf rcu_node structure\n\trecord quiescent states for the current grace period.\n\no\tAll of these same CPUs go offline (hence the need for enough\n\tphysical CPUs to populate more than one leaf rcu_node structure).\n\tThis causes the preempted task to be moved to the root rcu_node\n\tstructure.\n\nAt this point, there is nothing left to cause the quiescent\nstate to be propagated up the rcu_node tree, so the current\ngrace period never completes.\n\nThe simplest fix, especially after considering the deadlock\npossibilities, is to detect this situation when the last CPU is\nofflined, and to set that CPU\u0027s -\u003eqsmask bit in its leaf\nrcu_node structure. This will cause the next invocation of\nforce_quiescent_state() to end the grace period.\n\nWithout this fix, this hang can be triggered in an hour or so on\nsome machines with rcutorture and random CPU onlining/offlining.\nWith this fix, these same machines pass a full 10 hours of this\nsort of abuse.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c20091015162614.GA19131@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "019129d595caaa5bd0b41d128308da1be6a91869", "tree": "2db09ada99b0b8ca0a6423626fa85a9c1a7fc141", "parents": [ "37c72e56f6b234ea7387ba530434a80abf2658d8" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Oct 14 10:15:56 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Oct 15 11:17:17 2009 +0200" }, "message": "rcu: Stopgap fix for synchronize_rcu_expedited() for TREE_PREEMPT_RCU\n\nFor the short term, map synchronize_rcu_expedited() to\nsynchronize_rcu() for TREE_PREEMPT_RCU and to\nsynchronize_sched_expedited() for TREE_RCU.\n\nLonger term, there needs to be a real expedited grace period for\nTREE_PREEMPT_RCU, but candidate patches to date are considerably\nmore complex and intrusive.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nCc: npiggin@suse.de\nCc: jens.axboe@oracle.com\nLKML-Reference: \u003c12555405592331-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "37c72e56f6b234ea7387ba530434a80abf2658d8", "tree": "1c589c3ecdebbe19488359795cde4c55726a63aa", "parents": [ "2bc872036e1c5948b5b02942810bbdd8dbdb9812" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Oct 14 10:15:55 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Oct 15 11:17:16 2009 +0200" }, "message": "rcu: Prevent RCU IPI storms in presence of high call_rcu() load\n\nAs the number of callbacks on a given CPU rises, invoke\nforce_quiescent_state() only every blimit number of callbacks\n(defaults to 10,000), and even then only if no other CPU has\ninvoked force_quiescent_state() in the meantime.\n\nThis should fix the performance regression reported by Nick.\n\nReported-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: laijs@cn.fujitsu.com\nCc: dipankar@in.ibm.com\nCc: mathieu.desnoyers@polymtl.ca\nCc: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nCc: jens.axboe@oracle.com\nLKML-Reference: \u003c12555405592133-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d6047d79b90f6122fcbf2c3e783b507f7dd78fc6", "tree": "4091ff408dd6873609e3f3341b0b3972155b7201", "parents": [ "601adfedba37326410760d8d60f5da99a0adfd2f", "514fc01d389cf5d364ee3b5fec4ac1487448803e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:34:55 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:34:55 2009 -0700" }, "message": "Merge branch \u0027tty-fixes\u0027\n\n* branch \u0027tty-fixes\u0027:\n tty: use the new \u0027flush_delayed_work()\u0027 helper to do ldisc flush\n workqueue: add \u0027flush_delayed_work()\u0027 to run and wait for delayed work\n Make flush_to_ldisc properly handle parallel calls\n" }, { "commit": "ee67e6cbe1121da1ae4eceb7b2bcb535c5cbf65e", "tree": "8ceefe56b6f325a4b8dbf0ee2dcda0d9216a52a3", "parents": [ "220a6258b1bac1f0b050a99aa8233330d6c8c416", "c7cedb125ba20cc531671dc667ad704baa667d97" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:25:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:25:35 2009 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n oprofile: warn on freeing event buffer too early\n oprofile: fix race condition in event_buffer free\n lockdep: Use cpu_clock() for lockstat\n" }, { "commit": "f061d83a2b29f08b41c494335b7d23a432cb5a2d", "tree": "4b3fe2797968491f1e18e5ef52a9d08b37a2c301", "parents": [ "e345fe1ada6f91bf703ca080168745ef18b2f037", "e17b38bf9e70d74f3739a600db75240078ac1407" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:25:04 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:25:04 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix missing kernel-doc notation\n Revert \"x86, timers: Check for pending timers after (device) interrupts\"\n sched: Update the clock of runqueue select_task_rq() selected\n" }, { "commit": "e345fe1ada6f91bf703ca080168745ef18b2f037", "tree": "1e3598cd0ddc32afa79fe2f368ede4617fae24da", "parents": [ "ea876441052c2cebc27d9bd2a6f6b9bce6add408", "8ad807318fcd62aba0e18c7c7fbfcc1af3fcdbab" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:24:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:24:51 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/filters: Fix memory leak when setting a filter\n tracing: fix trace_vprintk call\n" }, { "commit": "8c53e46314562fe814b0afef6cfcbd2f562b017c", "tree": "e9b68a33c470a91967c5930438e93beeb3126c50", "parents": [ "c8e33141911bf8fe87dc6c92793b9a59b2be0130" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 09:16:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 15:11:35 2009 -0700" }, "message": "workqueue: add \u0027flush_delayed_work()\u0027 to run and wait for delayed work\n\nIt basically turns a delayed work into an immediate work, and then waits\nfor it to finish, thus allowing you to force (and wait for) an immediate\nflush of a delayed work.\n\nWe\u0027ll want to use this in the tty layer to clean up tty_flush_to_ldisc().\n\nAcked-by: Oleg Nesterov \u003coleg@redhat.com\u003e\n[ Fixed to use \u0027del_timer_sync()\u0027 as noted by Oleg ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2bc872036e1c5948b5b02942810bbdd8dbdb9812", "tree": "c91cc2791366214c5f924ff5aa77c24a7403fe40", "parents": [ "d58e6576b0deec6f0b9ff8450fe282da18c50883" ], "author": { "name": "Darren Hart", "email": "dvhltc@us.ibm.com", "time": "Wed Oct 14 10:12:39 2009 -0700" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 14 22:00:14 2009 +0200" }, "message": "futex: Check for NULL keys in match_futex\n\nIf userspace tries to perform a requeue_pi on a non-requeue_pi waiter,\nit will find the futex_q-\u003erequeue_pi_key to be NULL and OOPS.\n\nCheck for NULL in match_futex() instead of doing explicit NULL pointer\nchecks on all call sites. While match_futex(NULL, NULL) returning\nfalse is a little odd, it\u0027s still correct as we expect valid key\nreferences.\n\nSigned-off-by: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCC: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCC: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nCC: John Stultz \u003cjohnstul@us.ibm.com\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003c4AD60687.10306@us.ibm.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "43046b606673c9c991919ff75b980b72541e9ede", "tree": "86e89561891ed7833bd8229c2d06734aede63fec", "parents": [ "45242006e19c6f99945554e4d7d5680caf6ed9ad" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 09:16:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Oct 14 09:16:42 2009 -0700" }, "message": "workqueue: add \u0027flush_delayed_work()\u0027 to run and wait for delayed work\n\nIt basically turns a delayed work into an immediate work, and then waits\nfor it to finish.\n" }, { "commit": "92f6a5e37a2e2d3342dafb2b39c2f8bc340bbf84", "tree": "1e71e909fbf74b09863815549dbbe67d1661ab2b", "parents": [ "799e2205ec65e174f752b558c62a92c4752df313" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Oct 09 12:43:07 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 14 15:02:34 2009 +0200" }, "message": "sched: Do less agressive buddy clearing\n\nYanmin reported a hackbench regression due to:\n\n \u003e commit de69a80be32445b0a71e8e3b757e584d7beb90f7\n \u003e Author: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n \u003e Date: Thu Sep 17 09:01:20 2009 +0200\n \u003e\n \u003e sched: Stop buddies from hogging the system\n\nI really liked de69a80b, and it affecting hackbench shows I wasn\u0027t\ncrazy ;-)\n\nSo hackbench is a multi-cast, with one sender spraying multiple\nreceivers, who in their turn don\u0027t spray back.\n\nThis would be exactly the scenario that patch \u0027cures\u0027. Previously\nwe would not clear the last buddy after running the next task,\nallowing the sender to get back to work sooner than it otherwise\nought to have been, increasing latencies for other tasks.\n\nNow, since those receivers don\u0027t poke back, they don\u0027t enforce the\nbuddy relation, which means there\u0027s nothing to re-elect the sender.\n\nCure this by less agressively clearing the buddy stats. Only clear\nbuddies when they were not chosen. It should still avoid a buddy\nsticking around long after its served its time.\n\nReported-by: \"Zhang, Yanmin\" \u003cyanmin_zhang@linux.intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCC: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003c1255084986.8802.46.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "03541f8b69c058162e4cf9675ec9181e6a204d55", "tree": "67cd314f717b1b455861d1cfb9761162a44096b3", "parents": [ "a003236c32706f3c1f74d4e3b98c58cf0d9a9d8f" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Oct 14 16:58:03 2009 +1100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 14 08:39:32 2009 +0200" }, "message": "perf_event: Adjust frequency and unthrottle for non-group-leader events\n\nThe loop in perf_ctx_adjust_freq checks the frequency of sampling\nevent counters, and adjusts the event interval and unthrottles the\nevent if required, and resets the interrupt count for the event.\nHowever, at present it only looks at group leaders.\n\nThis means that a sampling event that is not a group leader will\neventually get throttled, once its interrupt count reaches\nsysctl_perf_event_sample_rate/HZ --- and that is guaranteed to\nhappen, if the event is active for long enough, since the interrupt\ncount never gets reset. Once it is throttled it never gets\nunthrottled, so it basically just stops working at that point.\n\nThis fixes it by making perf_ctx_adjust_freq use ctx-\u003eevent_list\nrather than ctx-\u003egroup_list. The existing spin_lock/spin_unlock\naround the loop makes it unnecessary to put rcu_read_lock/\nrcu_read_unlock around the list_for_each_entry_rcu().\n\nReported-by: Mark W. Krentel \u003ckrentel@cs.rice.edu\u003e\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Corey Ashford \u003ccjashfor@linux.vnet.ibm.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c19157.26731.855609.165622@cargo.ozlabs.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d58e6576b0deec6f0b9ff8450fe282da18c50883", "tree": "d4838a745f90e60057194169cea796584946202e", "parents": [ "c7cedb125ba20cc531671dc667ad704baa667d97" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 13 20:40:43 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 13 20:40:43 2009 +0200" }, "message": "futex: Handle spurious wake up\n\nThe futex code does not handle spurious wake up in futex_wait and\nfutex_wait_requeue_pi.\n\nThe code assumes that any wake up which was not caused by futex_wake /\nrequeue or by a timeout was caused by a signal wake up and returns one\nof the syscall restart error codes.\n\nIn case of a spurious wake up the signal delivery code which deals\nwith the restart error codes is not invoked and we return that error\ncode to user space. That causes applications which actually check the\nreturn codes to fail. Blaise reported that on preempt-rt a python test\nprogram run into a exception trap. -rt exposed that due to a built in\nspurious wake up accelerator :)\n\nSolve this by checking signal_pending(current) in the wake up path and\nhandle the spurious wake up case w/o returning to user space.\n\nReported-by: Blaise Gassend \u003cblaise@willowgarage.com\u003e\nDebugged-by: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003cnew-submission\u003e\n" }, { "commit": "80f506918fdaaca6b574ba931536a58ce015c7be", "tree": "938bddf32e8c5dca114cb1a5f3ca2a62960accc8", "parents": [ "a3bafbbbb5ac49355aa35e6a722eac6ef1dff19a", "2ec24ff1d1875defa742c76c9c7d74dca06b7e1f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 13 10:21:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 13 10:21:33 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block:\n cciss: Add cciss_allow_hpsa module parameter\n cciss: Fix multiple calls to pci_release_regions\n blk-settings: fix function parameter kernel-doc notation\n writeback: kill space in debugfs item name\n writeback: account IO throttling wait as iowait\n elv_iosched_store(): fix strstrip() misuse\n cfq-iosched: avoid probable slice overrun when idling\n cfq-iosched: apply bool value where we return 0/1\n cfq-iosched: fix think time allowed for seekers\n cfq-iosched: fix the slice residual sign\n cfq-iosched: abstract out the \u0027may this cfqq dispatch\u0027 logic\n block: use proper BLK_RW_ASYNC in blk_queue_start_tag()\n block: Seperate read and write statistics of in_flight requests v2\n block: get rid of kblock_schedule_delayed_work()\n cfq-iosched: fix possible problem with jiffies wraparound\n cfq-iosched: fix issue with rq-rq merging and fifo list ordering\n" }, { "commit": "8ad807318fcd62aba0e18c7c7fbfcc1af3fcdbab", "tree": "2e2d934ae03cc7e567b35bbca0de58e105a3b6b6", "parents": [ "a813a159766ee9d36aa1fc717c60d63325a6d077" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Oct 13 09:28:57 2009 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 13 08:05:17 2009 +0200" }, "message": "tracing/filters: Fix memory leak when setting a filter\n\nEvery time we set a filter, we leak memory allocated by\npostfix_append_operand() and postfix_append_op().\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: \u003cstable@kernel.org\u003e # for v2.6.31.x\nLKML-Reference: \u003c4AD3D7D9.4070400@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e17b38bf9e70d74f3739a600db75240078ac1407", "tree": "356f252a6e2ff7d3b61d9c94b2a2d452ab6551d3", "parents": [ "e7ab0f7b50bc4688fb5cf65de5d42e3b882fb8d1" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Sun Oct 11 19:12:00 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 12 10:50:06 2009 +0200" }, "message": "sched: Fix missing kernel-doc notation\n\nThe following htmldocs warnings:\n\n Warning(kernel/sched.c:685): No description found for parameter \u0027cpu\u0027\n Warning(kernel/sched.c:3676): No description found for parameter \u0027sd\u0027\n\nTrigger because new parameters were added to update_rq_clock() and\nupdate_group_power() without updating the kernel-doc notation.\n\nSigned-off-by: Jaswinder Singh Rajput \u003cjaswinderrajput@gmail.com\u003e\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4AD29070.7070002@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d43c36dc6b357fa1806800f18aa30123c747a6d1", "tree": "339ce510073ecbe9b3592008f7dece7b277035ef", "parents": [ "69585dd69e663a40729492c7b52eb82477a2027a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Oct 07 17:09:06 2009 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Oct 11 11:20:58 2009 -0700" }, "message": "headers: remove sched.h from interrupt.h\n\nAfter m68k\u0027s task_thread_info() doesn\u0027t refer to current,\nit\u0027s possible to remove sched.h from interrupt.h and not break m68k!\nMany thanks to Heiko Carstens for allowing this.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "f5dc37530ba8a35aae0f7f4f13781d1904f71e94", "tree": "866894f6bf41876a7c6096912c82e73d140d3071", "parents": [ "36a07902c2134649c4af7f07980413ffb1a56085" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Fri Oct 09 08:35:03 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 09 15:58:11 2009 +0200" }, "message": "sched: Update the clock of runqueue select_task_rq() selected\n\nIn try_to_wake_up(), we update the runqueue clock, but\nselect_task_rq() may select a different runqueue than the one we\nupdated, leaving the new runqueue\u0027s clock stale for a bit.\n\nThis patch cures occasional huge latencies reported by latencytop\nwhen coming out of idle on a mostly idle NO_HZ box.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1255070103.7639.30.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3365e7798760dc6c190a9bbb0945a38f02625438", "tree": "c3c1b49dcf4c2fcbddf1af27c281c9a7a55219ad", "parents": [ "36a07902c2134649c4af7f07980413ffb1a56085" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Oct 09 10:12:41 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Oct 09 15:56:44 2009 +0200" }, "message": "lockdep: Use cpu_clock() for lockstat\n\nSome tracepoint magic (TRACE_EVENT(lock_acquired)) relies on\nthe fact that lock hold times are positive and uses div64 on\nthat. That triggered a build warning on MIPS, and probably\ncauses bad output in certain circumstances as well.\n\nMake it truly positive.\n\nReported-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1254818502.21044.112.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d25105e8911bff1dbd68e387f12901c5b1a15fe8", "tree": "bcb94e898b9f3b0322db74473e4dd319a16308e2", "parents": [ "8c279598585e4992a41016bb973993ed15888cb3" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Fri Oct 09 12:40:42 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Fri Oct 09 12:40:42 2009 +0200" }, "message": "writeback: account IO throttling wait as iowait\n\nIt makes sense to do IOWAIT when someone is blocked\ndue to IO throttle, as suggested by Kame and Peter.\n\nThere is an old comment for not doing IOWAIT on throttle,\nhowever it has been mismatching the code for a long time.\n\nIf we stop accounting IOWAIT for 2.6.32, it could be an\nundesirable behavior change. So restore the io_schedule.\n\nCC: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCC: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "a813a159766ee9d36aa1fc717c60d63325a6d077", "tree": "a895e702adea43c61f2890424c800d1f99a24f5c", "parents": [ "8f6e8a314ab37cadd72da5ace9027f2d04aba854" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Oct 09 01:41:35 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Oct 09 01:41:35 2009 -0400" }, "message": "tracing: fix trace_vprintk call\n\nThe addition of trace_array_{v}printk used the wrong function for\ntrace_vprintk to call. This broke trace_marker and trace_vprintk\nitself. Although trace_printk may not have been affected by those\nthat end up calling trace_vbprintk.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "f579bbcd9bb8b688df03191b92c56ab8af4d6322", "tree": "d450f986022aab73f86f794a03c7f21ad0ece8ec", "parents": [ "e80fb7e52fd305b916a671755ca31ecf8f92e94e", "da085681014fb43d67d9bf6d14bc068e9254bd49" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:16:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:16:35 2009 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n futex: fix requeue_pi key imbalance\n futex: Fix typo in FUTEX_WAIT/WAKE_BITSET_PRIVATE definitions\n rcu: Place root rcu_node structure in separate lockdep class\n rcu: Make hot-unplugged CPU relinquish its own RCU callbacks\n rcu: Move rcu_barrier() to rcutree\n futex: Move exit_pi_state() call to release_mm()\n futex: Nullify robust lists after cleanup\n futex: Fix locking imbalance\n panic: Fix panic message visibility by calling bust_spinlocks(0) before dying\n rcu: Replace the rcu_barrier enum with pointer to call_rcu*() function\n rcu: Clean up code based on review feedback from Josh Triplett, part 4\n rcu: Clean up code based on review feedback from Josh Triplett, part 3\n rcu: Fix rcu_lock_map build failure on CONFIG_PROVE_LOCKING\u003dy\n rcu: Clean up code to address Ingo\u0027s checkpatch feedback\n rcu: Clean up code based on review feedback from Josh Triplett, part 2\n rcu: Clean up code based on review feedback from Josh Triplett\n" }, { "commit": "e80fb7e52fd305b916a671755ca31ecf8f92e94e", "tree": "476b8d77b6c59a3da6c6e7c30958b9912a904944", "parents": [ "624235c5b3a62639136b7823c2c88e4aeb5c5a8d", "f83f9ac2632732bd1678150b5a03d152f912fe72" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:07:24 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:07:24 2009 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Set correct normal_prio and prio values in sched_fork()\n" }, { "commit": "f17f36bb1c006818441b84cf65a6decf3e59942b", "tree": "865b308feea81c3c399669e9ec191a4cdad3265b", "parents": [ "b924f9599dfd4a604761e84b1e920e480fb57f66", "8f6e8a314ab37cadd72da5ace9027f2d04aba854" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:06:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:06:09 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: user local buffer variable for trace branch tracer\n tracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c\n ftrace: check for failure for all conversions\n tracing: correct module boundaries for ftrace_release\n tracing: fix transposed numbers of lock_depth and preempt_count\n trace: Fix missing assignment in trace_ctxwake_*\n tracing: Use free_percpu instead of kfree\n tracing: Check total refcount before releasing bufs in profile_enable failure\n" }, { "commit": "b924f9599dfd4a604761e84b1e920e480fb57f66", "tree": "a1456ef8aea8beb8415d8258a978e072467d8ff6", "parents": [ "b9d40b7b1e349bdc5c174b4ef1a333e62f7d749c", "2dca6999eed58d44b67e9de7d6ec230f6250553d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:05:50 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:05:50 2009 -0700" }, "message": "Merge branch \u0027sparc-perf-events-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sparc-perf-events-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n mm, perf_event: Make vmalloc_user() align base kernel virtual address to SHMLBA\n perf_event: Provide vmalloc() based mmap() backing\n" }, { "commit": "b9d40b7b1e349bdc5c174b4ef1a333e62f7d749c", "tree": "f5c2d85ffb1f1dd21ae8254723ea9c595cf200d5", "parents": [ "7c1632ba76d94b4847fde79f67faa91ef8571fe9", "e13dbd7d75d1ecc315c6e3071b3c4e8fba4f6bec" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:05:00 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 08 12:05:00 2009 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf_events: Make ABI definitions available to userspace\n perf tools: elf_sym__is_function() should accept \"zero\" sized functions\n tracing/syscalls: Use long for syscall ret format and field definitions\n perf trace: Update eval_flag() flags array to match interrupt.h\n perf trace: Remove unused code in builtin-trace.c\n perf: Propagate term signal to child\n" }, { "commit": "8f6e8a314ab37cadd72da5ace9027f2d04aba854", "tree": "2ce9adc1a11cd6d31742d07a557b787d6f0ceb74", "parents": [ "c8647b28726b09b087155417bb698e7b3789f8a0" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Oct 07 21:53:41 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Oct 07 21:53:41 2009 -0400" }, "message": "tracing: user local buffer variable for trace branch tracer\n\nJust using the tr-\u003ebuffer for the API to trace_buffer_lock_reserve\nis not good enough. This is because the tr-\u003ebuffer may change, and we\ndo not want to commit with a different buffer that we reserved from.\n\nThis patch uses a local variable to hold the buffer that was used to\nreserve and commit with.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "c8647b28726b09b087155417bb698e7b3789f8a0", "tree": "44300cbb5bfb317ce116227ec38ba33471425173", "parents": [ "3279ba37db5d65c4ab0dcdee3b211ccb85bb563f" ], "author": { "name": "Zhenwen Xu", "email": "helight.xu@gmail.com", "time": "Thu Oct 08 09:21:46 2009 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Oct 07 21:52:03 2009 -0400" }, "message": "tracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c\n\nfix warnings that caused the API change of trace_buffer_lock_reserve()\nchange files: kernel/trace/trace_hw_branch.c\n kernel/trace/trace_branch.c\n\nSigned-off-by: Zhenwen Xu \u003chelight.xu@gmail.com\u003e\nLKML-Reference: \u003c20091008012146.GA4170@helight\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "3279ba37db5d65c4ab0dcdee3b211ccb85bb563f", "tree": "e0051b9110b15187c4aaaa980749ab829f2e8427", "parents": [ "e7247a15ff3bbdab0a8b402dffa1171e5c05a8e0" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Oct 07 16:57:56 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Oct 07 17:22:24 2009 -0400" }, "message": "ftrace: check for failure for all conversions\n\nDue to legacy code from back when the dynamic tracer used a daemon,\nonly core kernel code was checking for failures. This is no longer\nthe case. We must check for failures any time we perform text modifications.\n\nCc: stable@kernel.org\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "e7247a15ff3bbdab0a8b402dffa1171e5c05a8e0", "tree": "139c26b2abd8ea5dd55ee6a4d43622bb24a0ee6a", "parents": [ "829b876dfc94ea8be3a47e200d06f1f217bb104f" ], "author": { "name": "jolsa@redhat.com", "email": "jolsa@redhat.com", "time": "Wed Oct 07 19:00:35 2009 +0200" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Oct 07 15:52:09 2009 -0400" }, "message": "tracing: correct module boundaries for ftrace_release\n\nWhen the module is about the unload we release its call records.\nThe ftrace_release function was given wrong values representing\nthe module core boundaries, thus not releasing its call records.\n\nPlus making ftrace_release function module specific.\n\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1254934835-363-3-git-send-email-jolsa@redhat.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "da085681014fb43d67d9bf6d14bc068e9254bd49", "tree": "a044706690151ad641ce8beee4d798248b962230", "parents": [ "f8d1e548931cfa5ea9a082e020c2a47d27e5d793" ], "author": { "name": "Darren Hart", "email": "dvhltc@us.ibm.com", "time": "Wed Oct 07 11:46:54 2009 -0700" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 07 21:22:03 2009 +0200" }, "message": "futex: fix requeue_pi key imbalance\n\nIf futex_wait_requeue_pi() wakes prior to requeue, we drop the\nreference to the source futex_key twice, once in\nhandle_early_requeue_pi_wakeup() and once on our way out.\n\nRemove the drop from the handle_early_requeue_pi_wakeup() and keep\nthe get/drops together in futex_wait_requeue_pi().\n\nReported-by: Helge Bahmann \u003chcb@chaoticmind.net\u003e\nSigned-off-by: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nCc: Helge Bahmann \u003chcb@chaoticmind.net\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nCc: John Stultz \u003cjohnstul@us.ibm.com\u003e\nCc: stable-2.6.31 \u003cstable@kernel.org\u003e\nLKML-Reference: \u003c4ACCE21E.5030805@us.ibm.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "829b876dfc94ea8be3a47e200d06f1f217bb104f", "tree": "615753acc06c1ba078da4033c4ce59a7091e0820", "parents": [ "b0f56f1a63b7b968e6feeeefeace24bc8e0a4a65" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Sun Sep 27 07:02:07 2009 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Oct 07 14:05:04 2009 -0400" }, "message": "tracing: fix transposed numbers of lock_depth and preempt_count\n\nThe lock_depth and preempt_count numbers in the latency format is\ntransposed.\n\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "fdc6f192e7e1ae80565af23cc33dc88e3dcdf184", "tree": "431a47d5fe9b737cc5dd5fe40e178d06f7d579ed", "parents": [ "0eca52a92735f43462165efe00a7e394345fb38e" ], "author": { "name": "Eero Nurkkala", "email": "ext-eero.nurkkala@nokia.com", "time": "Wed Oct 07 11:54:26 2009 +0300" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 07 13:05:05 2009 +0200" }, "message": "NOHZ: update idle state also when NOHZ is inactive\n\nCommit f2e21c9610991e95621a81407cdbab881226419b had unfortunate side\neffects with cpufreq governors on some systems.\n\nIf the system did not switch into NOHZ mode ts-\u003einidle is not set when\ntick_nohz_stop_sched_tick() is called from the idle routine. Therefor\nall subsequent calls from irq_exit() to tick_nohz_stop_sched_tick()\nfail to call tick_nohz_start_idle(). This results in bogus idle\naccounting information which is passed to cpufreq governors.\n\nSet the inidle flag unconditionally of the NOHZ active state to keep\nthe idle time accounting correct in any case.\n\n[ tglx: Added comment and tweaked the changelog ]\n\nReported-by: Steven Noonan \u003csteven@uplinklabs.net\u003e\nSigned-off-by: Eero Nurkkala \u003cext-eero.nurkkala@nokia.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Steven Noonan \u003csteven@uplinklabs.net\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003c1254907901.30157.93.camel@eenurkka-desktop\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "978c0b88146a7f9b364b71b5b83c5b12e7b413d7", "tree": "b68bedc40888192d329841a786f3b1214eab91ef", "parents": [ "e74f4c4564455c91a3b4075bb1721993c2a95dda" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Oct 06 21:48:18 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 07 08:11:21 2009 +0200" }, "message": "rcu: Place root rcu_node structure in separate lockdep class\n\nBefore this patch, all of the rcu_node structures were in the same lockdep\nclass, so that lockdep would complain when rcu_preempt_offline_tasks()\nacquired the root rcu_node structure\u0027s lock while holding one of the leaf\nrcu_nodes\u0027 locks.\n\nThis patch changes rcu_init_one() to use a separate\nspin_lock_init() for the root rcu_node structure\u0027s lock than is\nused for that of all of the rest of the rcu_node structures, which\nputs the root rcu_node structure\u0027s lock in its own lockdep class.\n\nSuggested-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\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: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c12548908983277-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e74f4c4564455c91a3b4075bb1721993c2a95dda", "tree": "213f9df0974c6e1e729de207b2c6dd942a39ba8c", "parents": [ "d0ec774cb2599c858be9d923bb873cf6697520d8" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Oct 06 21:48:17 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 07 08:11:20 2009 +0200" }, "message": "rcu: Make hot-unplugged CPU relinquish its own RCU callbacks\n\nThe current interaction between RCU and CPU hotplug requires that\nRCU block in CPU notifiers waiting for callbacks to drain.\n\nThis can be greatly simplified by having each CPU relinquish its\nown callbacks, and for both _rcu_barrier() and CPU_DEAD notifiers\nto adopt all callbacks that were previously relinquished.\n\nThis change also eliminates the possibility of certain types of\nhangs due to the previous practice of waiting for callbacks to be\ninvoked from within CPU notifiers. If you don\u0027t every wait, you\ncannot hang.\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: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c1254890898456-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d0ec774cb2599c858be9d923bb873cf6697520d8", "tree": "0897fd843622033a6db6ab43167e47c3236aa22d", "parents": [ "322a2c100a8998158445599ea437fb556aa95b11" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Oct 06 21:48:16 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 07 08:11:20 2009 +0200" }, "message": "rcu: Move rcu_barrier() to rcutree\n\nMove the existing rcu_barrier() implementation to rcutree.c,\nconsistent with the fact that the rcu_barrier() implementation is\ntied quite tightly to the RCU implementation.\n\nThis opens the way to simplify and fix rcutree.c\u0027s rcu_barrier()\nimplementation in a later patch.\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: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c12548908982563-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "322a2c100a8998158445599ea437fb556aa95b11", "tree": "8039af7452e0fac73f3083cb7e9c1e00d3007811", "parents": [ "fc6b177dee33365ccb29fe6d2092223cf8d679f9" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 05 18:18:03 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 06 17:00:01 2009 +0200" }, "message": "futex: Move exit_pi_state() call to release_mm()\n\nexit_pi_state() is called from do_exit() but not from do_execve().\nMove it to release_mm() so it gets called from do_execve() as well.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003cnew-submission\u003e\nCc: stable@kernel.org\nCc: Anirban Sinha \u003cani@anirban.org\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\n\n" }, { "commit": "fc6b177dee33365ccb29fe6d2092223cf8d679f9", "tree": "849fcb60282bc6c0a01c3113dfc617c7f03f97d3", "parents": [ "eaaea8036d0261d87d7072c5bc88c7ea730c18ac" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Mon Oct 05 18:17:32 2009 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 06 17:00:01 2009 +0200" }, "message": "futex: Nullify robust lists after cleanup\n\nThe robust list pointers of user space held futexes are kept intact\nover an exec() call. When the exec\u0027ed task exits exit_robust_list() is\ncalled with the stale pointer. The risk of corruption is minimal, but\nstill it is incorrect to keep the pointers valid. Actually glibc\nshould uninstall the robust list before calling exec() but we have to\ndeal with it anyway.\n\nNullify the pointers after [compat_]exit_robust_list() has been\ncalled.\n\nReported-by: Anirban Sinha \u003cani@anirban.org\u003e\nSigned-off-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003cnew-submission\u003e\nCc: stable@kernel.org\n" }, { "commit": "b0f56f1a63b7b968e6feeeefeace24bc8e0a4a65", "tree": "56bb19f2961203dff4656fc64c0471da93785a36", "parents": [ "75fb4090b39a3d7bf9ac77a28665c991ec5eaadc" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Thu Oct 01 13:33:28 2009 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 06 14:28:24 2009 +0200" }, "message": "trace: Fix missing assignment in trace_ctxwake_*\n\nThe state char variable S should be reassigned, if S \u003d\u003d 0.\n\nWe are missing the state of the task that is going to sleep for the\ncontext switch events (in the raw mode).\n\nFortunately the problem arises with the sched_switch/wake_up\ntracers, not the sched trace events.\n\nThe formers are legacy now. But still, that was buggy.\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nCc: Steven Rostedt \u003csrostedt@redhat.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c4AC43118.6050409@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "906010b2134e14a2e377decbadd357b3d0ab9c6a", "tree": "598b30d08f5ca8df1e00abc295b120fa1bd2c2e2", "parents": [ "e13dbd7d75d1ecc315c6e3071b3c4e8fba4f6bec" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Sep 21 16:08:49 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 06 14:21:50 2009 +0200" }, "message": "perf_event: Provide vmalloc() based mmap() backing\n\nSome architectures such as Sparc, ARM and MIPS (basically\neverything with flush_dcache_page()) need to deal with dcache\naliases by carefully placing pages in both kernel and user maps.\n\nThese architectures typically have to use vmalloc_user() for this.\n\nHowever, on other architectures, vmalloc() is not needed and has\nthe downsides of being more restricted and slower than regular\nallocations.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: David Miller \u003cdavem@davemloft.net\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1254830228.21044.272.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee949a86b3aef15845ea677aa60231008de62672", "tree": "de3cb7bdbc4399a052140ec1e46a19fda60b1fd0", "parents": [ "b934cdd55f2ac38c825f3d46cfa87a1654f1c849" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Tue Oct 06 01:00:49 2009 -0500" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 06 12:02:34 2009 +0200" }, "message": "tracing/syscalls: Use long for syscall ret format and field definitions\n\nThe syscall event definitions use long for the syscall exit ret\nvalue, but unsigned long for the same thing in the format and field\ndefinitions. Change them all to long.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nAcked-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: rostedt@goodmis.org\nCc: lizf@cn.fujitsu.com\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\nLKML-Reference: \u003c1254808849-7829-4-git-send-email-tzanussi@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eaaea8036d0261d87d7072c5bc88c7ea730c18ac", "tree": "07bbd53bdc9a47d86ca667f3171c3b7ebf1ac07c", "parents": [ "d014e8894dfc523dd9d2f2a17b6dcb94facea810" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sun Oct 04 09:34:17 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:08:14 2009 +0200" }, "message": "futex: Fix locking imbalance\n\nRich reported a lock imbalance in the futex code:\n\n http://bugzilla.kernel.org/show_bug.cgi?id\u003d14288\n\nIt\u0027s caused by the displacement of the retry_private label in\nfutex_wake_op(). The code unlocks the hash bucket locks in the\nerror handling path and retries without locking them again which\nmakes the next unlock fail.\n\nMove retry_private so we lock the hash bucket locks when we retry.\n\nReported-by: Rich Ercolany \u003crercola@acm.jhu.edu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Darren Hart \u003cdvhltc@us.ibm.com\u003e\nCc: stable-2.6.31 \u003cstable@kernel.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d014e8894dfc523dd9d2f2a17b6dcb94facea810", "tree": "d4a3dec08acc9e9fb661576bd5f7b0ce11a1ecc9", "parents": [ "135c8aea557cf53abe6c8847e286d01442124193" ], "author": { "name": "Aaro Koskinen", "email": "aaro.koskinen@nokia.com", "time": "Fri Oct 02 14:41:20 2009 +0300" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:08:09 2009 +0200" }, "message": "panic: Fix panic message visibility by calling bust_spinlocks(0) before dying\n\nCommit ffd71da4e3f (\"panic: decrease oops_in_progress only after\nhaving done the panic\") moved bust_spinlocks(0) to the end of the\nfunction, which in practice is never reached.\n\nAs a result console_unblank() is not called, and on some systems\nthe user may not see the panic message.\n\nMove it back up to before the unblanking.\n\nSigned-off-by: Aaro Koskinen \u003caaro.koskinen@nokia.com\u003e\nReviewed-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nLKML-Reference: \u003c1254483680-25578-1-git-send-email-aaro.koskinen@nokia.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "41cb6654eb2cf01476223a3742946b9f65bd1bbd", "tree": "6874faea173541ef1692173b9984739e8254ffcc", "parents": [ "e69a9ac59629db81971a9e03048f9a107712947a", "1ad0560e8cdb6d5b381220dc2da187691b5ce124" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 05 12:04:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 05 12:04:41 2009 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf tools: Run generate-cmdlist.sh properly\n perf_event: Clean up perf_event_init_task()\n perf_event: Fix event group handling in __perf_event_sched_*()\n perf timechart: Add a power-only mode\n perf top: Add poll_idle to the skip list\n" }, { "commit": "e69a9ac59629db81971a9e03048f9a107712947a", "tree": "3b9959180e882009bd3b73f14b9435bc30594088", "parents": [ "0f26ec69f0c4071a8dfa3c2ac8e180a79355f81a", "d3f6302e7e51b41af86c6496ffb2f95e8f2179df" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 05 12:04:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 05 12:04:16 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 hrtimer: Remove overly verbose \"switch to high res mode\" message\n" }, { "commit": "0f26ec69f0c4071a8dfa3c2ac8e180a79355f81a", "tree": "3104b99ef5604ec9e17d6cd3ac2eadc80af2e9d8", "parents": [ "46302b46e5cf9e23859360e38c540be6e3465c6b", "f9ac5a69edee0ee7e06a05727226e3f275306c8d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 05 12:03:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 05 12:03:43 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 kmemtrace: Fix up tracer registration\n tracing: Fix infinite recursion in ftrace_update_pid_func()\n" }, { "commit": "135c8aea557cf53abe6c8847e286d01442124193", "tree": "82d8ca15e13548749c7770e9a1a7bc6800ebefbb", "parents": [ "a0b6c9a78c41dc36732d6e1e90f0f2f57b29816f" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Sep 28 21:50:21 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:02:05 2009 +0200" }, "message": "rcu: Replace the rcu_barrier enum with pointer to call_rcu*() function\n\nThe rcu_barrier enum causes several problems:\n\n (1) you have to define the enum somewhere, and there is no\n convenient place,\n\n (2) the difference between TREE_RCU and TREE_PREEMPT_RCU causes\n problems when you need to map from rcu_barrier enum to struct\n rcu_state,\n\n (3) the switch statement are large, and\n\n (4) TINY_RCU really needs a different rcu_barrier() than do the\n treercu implementations.\n\nSo replace it with a functionally equivalent but cleaner function\npointer abstraction.\n\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\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: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c12541998232366-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a0b6c9a78c41dc36732d6e1e90f0f2f57b29816f", "tree": "4e68c76c95a74e1c8f3360c10e2c3496b7a7df0d", "parents": [ "3d76c082907e8f83c5d5c4572f38d53ad8f00c4b" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Sep 28 07:46:33 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:02:04 2009 +0200" }, "message": "rcu: Clean up code based on review feedback from Josh Triplett, part 4\n\nThese issues identified during an old-fashioned face-to-face code\nreview extending over many hours. This group improves an existing\nabstraction and introduces two new ones. It also fixes an RCU\nstall-warning bug found while making the other changes.\n\no\tMake RCU_INIT_FLAVOR() declare its own variables, removing\n\tthe need to declare them at each call site.\n\no\tCreate an rcu_for_each_leaf() macro that scans the leaf\n\tnodes of the rcu_node tree.\n\no\tCreate an rcu_for_each_node_breadth_first() macro that does\n\ta breadth-first traversal of the rcu_node tree, AKA\n\tstepping through the array in index-number order.\n\no\tIf all CPUs corresponding to a given leaf rcu_node\n\tstructure go offline, then any tasks queued on that leaf\n\twill be moved to the root rcu_node structure. Therefore,\n\tthe stall-warning code must dump out tasks queued on the\n\troot rcu_node structure as well as those queued on the leaf\n\trcu_node structures.\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: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c12541491934126-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3d76c082907e8f83c5d5c4572f38d53ad8f00c4b", "tree": "a39c3d3ea17dc085195626487f37995beb742ac0", "parents": [ "162cc2794df37662beb7f97ddd1dd5bffaf85e9a" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Mon Sep 28 07:46:32 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:02:02 2009 +0200" }, "message": "rcu: Clean up code based on review feedback from Josh Triplett, part 3\n\nWhitespace fixes, updated comments, and trivial code movement.\n\no\tFix whitespace error in RCU_HEAD_INIT()\n\no\tMove \"So where is rcu_write_lock()\" comment so that it does\n\tnot come between the rcu_read_unlock() header comment and\n\tthe rcu_read_unlock() definition.\n\no\tMove the module_param statements for blimit, qhimark, and\n\tqlowmark to immediately follow the corresponding\n\tdefinitions.\n\no\tIn __rcu_offline_cpu(), move the assignment to rdp_me\n\tinside the \"if\" statement, given that rdp_me is not used\n\toutside of that \"if\" statement.\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: josh@joshtriplett.org\nCc: dvhltc@us.ibm.com\nCc: niv@us.ibm.com\nCc: peterz@infradead.org\nCc: rostedt@goodmis.org\nCc: Valdis.Kletnieks@vt.edu\nCc: dhowells@redhat.com\nLKML-Reference: \u003c12541491931164-git-send-email-\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "162cc2794df37662beb7f97ddd1dd5bffaf85e9a", "tree": "88619bce8fce70c4f19c1a5809448d7b624bbb9e", "parents": [ "9b2619aff0332e95ea5eb7a0d75b0208818d871c" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Wed Sep 23 16:18:13 2009 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 21:01:28 2009 +0200" }, "message": "rcu: Fix rcu_lock_map build failure on CONFIG_PROVE_LOCKING\u003dy\n\nMove the rcu_lock_map definition from rcutree.c to rcupdate.c so that\nTINY_RCU can use lockdep.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f83f9ac2632732bd1678150b5a03d152f912fe72", "tree": "cbf8600bf31cec0cb7d22c02cdcd27d992ba5c84", "parents": [ "374576a8b6f865022c0fd1ca62396889b23d66dd" ], "author": { "name": "Peter Williams", "email": "pwil3058@bigpond.net.au", "time": "Thu Sep 24 06:47:10 2009 +0000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 05 13:42:20 2009 +0200" }, "message": "sched: Set correct normal_prio and prio values in sched_fork()\n\nnormal_prio should be updated if policy changes from RT to\nSCHED_MORMAL or if static_prio/nice is changed.\n\nSome paths through sched_fork() ignore this requirement and may\nresult in normal_prio having an invalid value.\n\nFixing this issue allows the call to effective_prio() in\nwake_up_new_task() to be removed.\n\nSigned-off-by: Peter Williams \u003cpwil3058@bigpond.net.au\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003cf8f46736fd4e7f090ac0.1253774830@mudlark.pw.nest\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "75fb4090b39a3d7bf9ac77a28665c991ec5eaadc", "tree": "127abba2cc4382cd7f70e4867184e5af0b275748", "parents": [ "fe8e5b5a60f8427940d33b205e127aecfb0bca10" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Oct 03 15:08:54 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Oct 05 10:57:56 2009 +0200" }, "message": "tracing: Use free_percpu instead of kfree\n\nIn the event-\u003eprofile_enable() failure path, we release the per cpu\nbuffers using kfree which is wrong because they are per cpu pointers.\nAlthough free_percpu only wraps kfree for now, that may change in the\nfuture so lets use the correct way.\n\nReported-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\n" }, { "commit": "fe8e5b5a60f8427940d33b205e127aecfb0bca10", "tree": "d4d18d4a69175f715c9483e0e92ae73f8deda090", "parents": [ "8a0382f6fceaf0c6479e582e1054f36333ea3d24" ], "author": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Sat Oct 03 14:55:18 2009 +0200" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Mon Oct 05 10:57:41 2009 +0200" }, "message": "tracing: Check total refcount before releasing bufs in profile_enable failure\n\nWhen we call the profile_enable() callback of an event, we release the\nshared perf event tracing buffers unconditionnaly in the failure path.\nThis is wrong because there may be other users of these. Then check the\ntotal refcount before doing this.\n\nReported-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\n" }, { "commit": "58e57fbd1c7e8833314459555e337364fe5521f3", "tree": "242a3859387588889c9dcc45915b0dec951f84c3", "parents": [ "8a0382f6fceaf0c6479e582e1054f36333ea3d24", "0f78ab9899e9d6acb09d5465def618704255963b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Oct 04 12:39:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Oct 04 12:39:14 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block: (41 commits)\n Revert \"Seperate read and write statistics of in_flight requests\"\n cfq-iosched: don\u0027t delay async queue if it hasn\u0027t dispatched at all\n block: Topology ioctls\n cfq-iosched: use assigned slice sync value, not default\n cfq-iosched: rename \u0027desktop\u0027 sysfs entry to \u0027low_latency\u0027\n cfq-iosched: implement slower async initiate and queue ramp up\n cfq-iosched: delay async IO dispatch, if sync IO was just done\n cfq-iosched: add a knob for desktop interactiveness\n Add a tracepoint for block request remapping\n block: allow large discard requests\n block: use normal I/O path for discard requests\n swapfile: avoid NULL pointer dereference in swapon when s_bdev is NULL\n fs/bio.c: move EXPORT* macros to line after function\n Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs\n cciss: fix build when !PROC_FS\n block: Do not clamp max_hw_sectors for stacking devices\n block: Set max_sectors correctly for stacking devices\n cciss: cciss_host_attr_groups should be const\n cciss: Dynamically allocate the drive_info_struct for each logical drive.\n cciss: Add usage_count attribute to each logical drive in /sys\n ...\n" }, { "commit": "1087e9b4ff708976499b4de541d9e1d57d49b60a", "tree": "a370356b3f969b6081189d850d9a56921ed341c4", "parents": [ "f0a221ef47df3cdde2123fe75ce3b61bb7df656d" ], "author": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Sun Oct 04 02:20:11 2009 +0200" }, "committer": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Sun Oct 04 03:23:17 2009 +0200" }, "message": "HWPOISON: Clean up PR_MCE_KILL interface\n\nWhile writing the manpage I noticed some shortcomings in the\ncurrent interface.\n\n- Define symbolic names for all the different values\n- Boundary check the kill mode values\n- For symmetry add a get interface too. This allows library\ncode to get/set the current state.\n- For consistency define a PR_MCE_KILL_DEFAULT value\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\n" }, { "commit": "4e649152cbaa1aedd01821d200ab9d597fe469e4", "tree": "635fa7d75acda929e81b8b0db7e641b7d4e07b35", "parents": [ "3dece8347df6a16239fab10dadb370854f1c969c" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Thu Oct 01 15:44:11 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 01 16:11:13 2009 -0700" }, "message": "memcg: some modification to softlimit under hierarchical memory reclaim.\n\nThis patch clean up/fixes for memcg\u0027s uncharge soft limit path.\n\nProblems:\n Now, res_counter_charge()/uncharge() handles softlimit information at\n charge/uncharge and softlimit-check is done when event counter per memcg\n goes over limit. Now, event counter per memcg is updated only when\n memory usage is over soft limit. Here, considering hierarchical memcg\n management, ancesotors should be taken care of.\n\n Now, ancerstors(hierarchy) are handled in charge() but not in uncharge().\n This is not good.\n\n Prolems:\n 1. memcg\u0027s event counter incremented only when softlimit hits. That\u0027s bad.\n It makes event counter hard to be reused for other purpose.\n\n 2. At uncharge, only the lowest level rescounter is handled. This is bug.\n Because ancesotor\u0027s event counter is not incremented, children should\n take care of them.\n\n 3. res_counter_uncharge()\u0027s 3rd argument is NULL in most case.\n ops under res_counter-\u003elock should be small. No \"if\" sentense is better.\n\nFixes:\n * Removed soft_limit_xx poitner and checks in charge and uncharge.\n Do-check-only-when-necessary scheme works enough well without them.\n\n * make event-counter of memcg incremented at every charge/uncharge.\n (per-cpu area will be accessed soon anyway)\n\n * All ancestors are checked at soft-limit-check. This is necessary because\n ancesotor\u0027s event counter may never be modified. Then, they should be\n checked at the same time.\n\nReviewed-by: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3dece8347df6a16239fab10dadb370854f1c969c", "tree": "23a93cdb0dfacd4b89b42c192a6247be84d105bf", "parents": [ "26251eaf98e26dc2ce2dc26d63bc502700760704" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Thu Oct 01 15:44:09 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 01 16:11:12 2009 -0700" }, "message": "cgroup: catch bad css refcnt at css_put\n\n__css_put() doesn\u0027t check a bug as refcnt goes to minus.\nI think it should be caught. This patch adds a check for it.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Daisuke Nishimura \u003cnishimura@mxp.nes.nec.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "828c09509b9695271bcbdc53e9fc9a6a737148d2", "tree": "072ffad6f02db7bf4095e07e2b90247cfa042998", "parents": [ "1c4115e595dec42aa0e81ba47ef46e35b34ed428" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Oct 01 15:43:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 01 16:11:11 2009 -0700" }, "message": "const: constify remaining file_operations\n\n[akpm@linux-foundation.org: fix KVM]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nAcked-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3ae91c21dd29e413f4111978152c14061f0984b0", "tree": "64b4867e2ee81180661c287fa38d068975d1d37f", "parents": [ "817b33d38f81c8736d39283c35c886ae4668f1af" ], "author": { "name": "Paul Mundt", "email": "lethal@linux-sh.org", "time": "Thu Oct 01 15:43:54 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 01 16:11:11 2009 -0700" }, "message": "module: fix up CONFIG_KALLSYMS\u003dn build.\n\nStarting from commit 4a4962263f07d14660849ec134ee42b63e95ea9a \"reduce\nsymbol table for loaded modules (v2)\", the kernel/module.c build is broken\nwith CONFIG_KALLSYMS disabled.\n\n CC kernel/module.o\nkernel/module.c:1995: warning: type defaults to \u0027int\u0027 in declaration of \u0027Elf_Hdr\u0027\nkernel/module.c:1995: error: expected \u0027;\u0027, \u0027,\u0027 or \u0027)\u0027 before \u0027*\u0027 token\nkernel/module.c: In function \u0027load_module\u0027:\nkernel/module.c:2203: error: \u0027strmap\u0027 undeclared (first use in this function)\nkernel/module.c:2203: error: (Each undeclared identifier is reported only once\nkernel/module.c:2203: error: for each function it appears in.)\nkernel/module.c:2239: error: \u0027symoffs\u0027 undeclared (first use in this function)\nkernel/module.c:2239: error: implicit declaration of function \u0027layout_symtab\u0027\nkernel/module.c:2240: error: \u0027stroffs\u0027 undeclared (first use in this function)\nmake[1]: *** [kernel/module.o] Error 1\nmake: *** [kernel/module.o] Error 2\n\nThere are three different issues:\n\n - layout_symtab() takes a const Elf_Ehdr\n\n - layout_symtab() needs to return a value\n\n - symoffs/stroffs/strmap are referenced by the load_module() code\n despite being ifdefed out, which seems unnecessary given the noop\n behaviour of layout_symtab()/add_kallsyms() in the case of\n CONFIG_KALLSYMS\u003dn.\n\nSigned-off-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b0da3f0dada78832c9da03ad2152ae76bd9a2496", "tree": "58380f5d8f3c313fbb9fd0310509a408b38a0399", "parents": [ "67efc9258010da35b27b3854d0880c7e193004ed" ], "author": { "name": "Jun\u0027ichi Nomura", "email": "j-nomura@ce.jp.nec.com", "time": "Thu Oct 01 21:16:13 2009 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Oct 01 21:19:34 2009 +0200" }, "message": "Add a tracepoint for block request remapping\n\nSince 2.6.31 now has request-based device-mapper, it\u0027s useful to have\na tracepoint for request-remapping as well as bio-remapping.\nThis patch adds a tracepoint for request-remapping, trace_block_rq_remap().\n\nSigned-off-by: Kiyoshi Ueda \u003ck-ueda@ct.jp.nec.com\u003e\nSigned-off-by: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" } ], "next": "48c0d4d4c04dd520c55e0fd756fa4e7c83de3d13" }