)]}' { "log": [ { "commit": "438e2ce68dfd4af4cfcec2f873564fb921db4bb5", "tree": "685262ee1f983001db52df4253548f03d98dd33f", "parents": [ "b842ee578eeb2c10303725e28edca130ede0397c" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:49 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:19 2007 -0700" }, "message": "freezer: measure freezing time\n\nMeasure the time of the freezing of tasks, even if it doesn\u0027t fail.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b842ee578eeb2c10303725e28edca130ede0397c", "tree": "d78d1f72aff5e45bcc49fe87101264853eb39334", "parents": [ "f059bca1c57f665211dc23de1fb31c1849b65c7b" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:48 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:19 2007 -0700" }, "message": "freezer: be more verbose\n\nIncrease the freezer\u0027s verbosity a bit, so that it\u0027s easier to read problem\nreports related to it.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c3d42d75270e9c259b75f814ccad2a88ab310665", "tree": "7b5e3b359581431c7d782b164a95230c1019c1a2", "parents": [ "d5d8c5976d6adeddb8208c240460411e2198b393" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Thu Oct 18 03:04:47 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:19 2007 -0700" }, "message": "unexport pm_power_off_prepare\n\nThis patch removes the unused EXPORT_SYMBOL(pm_power_off_prepare).\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\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": "d5d8c5976d6adeddb8208c240460411e2198b393", "tree": "bc7ee9762366c3790f0c0c84e8de73487b5ef261", "parents": [ "e42837bcd35b75bb59ae5d3e62f87be1aeeb05c3" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:19 2007 -0700" }, "message": "freezer: do not send signals to kernel threads\n\nThe freezer should not send signals to kernel threads, since that may lead to\nsubtle problems. In particular, commit\nb74d0deb968e1f85942f17080eace015ce3c332c has changed recalc_sigpending_tsk()\nso that it doesn\u0027t clear TIF_SIGPENDING. For this reason, if the freezer\ncontinues to send fake signals to kernel threads and the freezing of kernel\nthreads fails, some of them may be running with TIF_SIGPENDING set forever.\n\nAccordingly, recalc_sigpending_tsk() shouldn\u0027t set the task\u0027s TIF_SIGPENDING\nflag if TIF_FREEZE is set.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2e1318956ce6bf149af5c5e98499b5cd99f99c89", "tree": "67226430b51133635bea0a74b670441562de9144", "parents": [ "232b14328050a4639130b0dec185f43968e72035" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:45 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "freezer: prevent new tasks from inheriting TIF_FREEZE set\n\nTasks should go to the refrigerator only if explicitly requested to do that by\nthe freezer and not as a result of inheriting the TIF_FREEZE flag set from the\nparent. Make it happen.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nAcked-by: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "232b14328050a4639130b0dec185f43968e72035", "tree": "eb3b525278bd3efd5403bc4f5cfb3e41614d40c4", "parents": [ "2776365370b579afc36cff14dc70a567b66f0378" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:44 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "freezer: do not sync filesystems from freeze_processes\n\nThe syncing of filesystems from within the freezer is generally not needed.\nAlso, if there\u0027s an ext3 filesystem loopback-mounted from a FUSE one, the\nsyncing results in writes to it and deadlocks. Similarly, it will deadlock if\nFUSE implements sync.\n\nChange freeze_processes() so that it doesn\u0027t execute sys_sync() and make the\nsuspend and hibernation code path sync filesystems independently of the\nfreezer.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Nigel Cunningham \u003cnigel@nigel.suspend2.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b3dac3b304bdfbb06e92b0d4bba9ecab006795e6", "tree": "850b1162febb536b2ae31d1ff10378057322aa7a", "parents": [ "74f270af0c1ed5b9d4413784256959dcfe3593ce" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "PM: Rename hibernation_ops to platform_hibernation_ops\n\nRename \u0027struct hibernation_ops\u0027 to \u0027struct platform_hibernation_ops\u0027 in\nanalogy with \u0027struct platform_suspend_ops\u0027.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "74f270af0c1ed5b9d4413784256959dcfe3593ce", "tree": "5b74248167be086b0050a84f9ebe072bbb43fdb3", "parents": [ "f242d9196fd1ef4e6bf0e50d2e7f32866fb145c2" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:42 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "PM: Rework struct hibernation_ops\n\nDuring hibernation we also need to tell the ACPI core that we\u0027re going to put\nthe system into the S4 sleep state. For this reason, an additional method in\n\u0027struct hibernation_ops\u0027 is needed, playing the role of set_target() in\n\u0027struct platform_suspend_operations\u0027. Moreover, the role of the .prepare()\nmethod is now different, so it\u0027s better to introduce another method, that in\ngeneral may be different from .prepare(), that will be used to prepare the\nplatform for creating the hibernation image (.prepare() is used anyway to\nnotify the platform that we\u0027re going to enter the low power state after the\nimage has been saved).\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f242d9196fd1ef4e6bf0e50d2e7f32866fb145c2", "tree": "f611d44e54e7633ff1d94169cf83485472127e08", "parents": [ "e6c5eb9541f2197a3ffab90b1c7a3250a9b51bf6" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:41 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "PM: Make suspend_ops static\n\nThe variable suspend_ops representing the set of global platform-specific\nsuspend-related operations, used by the PM core, need not be exported outside\nof kernel/power/main.c .  Make it static.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e6c5eb9541f2197a3ffab90b1c7a3250a9b51bf6", "tree": "ac227415da22d4345f8e72a6a8e781757b6ce85a", "parents": [ "26398a70ea35f153feb799fa850c71685667712b" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:41 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "PM: Rework struct platform_suspend_ops\n\nThere is no reason why the .prepare() and .finish() methods in \u0027struct\nplatform_suspend_ops\u0027 should take any arguments, since architectures don\u0027t use\nthese methods\u0027 argument in any practically meaningful way (ie. either the\ntarget system sleep state is conveyed to the platform by .set_target(), or\nthere is only one suspend state supported and it is indicated to the PM core\nby .valid(), or .prepare() and .finish() aren\u0027t defined at all).  There also\nis no reason why .finish() should return any result.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "26398a70ea35f153feb799fa850c71685667712b", "tree": "e75959ef010bf3521bce2a33e59565c34b0c109d", "parents": [ "95d9ffbe01fb21d524c86bf77871255066bc6e55" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Oct 18 03:04:40 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:18 2007 -0700" }, "message": "PM: Rename struct pm_ops and related things\n\nThe name of \u0027struct pm_ops\u0027 suggests that it is related to the power\nmanagement in general, but in fact it is only related to suspend.  Moreover,\nits name should indicate what this structure is used for, so it seems\nreasonable to change it to \u0027struct platform_suspend_ops\u0027.  In that case, the\nname of the global variable of this type used by the PM core and the names of\nrelated functions should be changed accordingly.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nCc: Len Brown \u003clenb@kernel.org\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a065c86e1bfcdd36709025d018965afea3f3a2b6", "tree": "4152aea4b22515a986ce71ad1284b852b12f8947", "parents": [ "41702d9a4fffa9e25b2ad9d4af09b3013fa155e1" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Thu Oct 18 03:04:37 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:17 2007 -0700" }, "message": "make kernel/power/main.c:suspend_enter() static\n\nsuspend_enter() can now become static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3dfbc88464934fb6924a388bc03961d44f387926", "tree": "3ddb9a50bb2df909d6e629783bd41301541feceb", "parents": [ "e6d5a11dad44b8ae18ca8fc4ecb72ccccfa0a2d2" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Oct 17 18:04:32 2007 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@inhelltoy.tec.linutronix.de", "time": "Wed Oct 17 20:15:13 2007 +0200" }, "message": "x86: C1E late detection fix. Really switch off lapic timer\n\nDoh, I completely missed that devices marked DUMMY are not running\nthe set_mode function. So we force broadcasting, but we keep the\nlocal APIC timer running.\n\nLet the clock event layer mark the device _after_ switching it off.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e6d5a11dad44b8ae18ca8fc4ecb72ccccfa0a2d2", "tree": "7e3837c8f28e2e969a7b7d040b00676c90bf72c7", "parents": [ "b6257a9036f06878a0f02354d5a07f155e1cfee0", "b9dca1e0fcb696716840a3bc8f20a6941b484dbf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 09:11:18 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 09:11:18 2007 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:\n sched: fix new task startup crash\n sched: fix !SYSFS build breakage\n sched: fix improper load balance across sched domain\n sched: more robust sd-sysctl entry freeing\n" }, { "commit": "cbfee34520666862f8ff539e580c48958fbb7706", "tree": "ded5cafce333e908a0fbeda1f7c55eaf7c1fbaaa", "parents": [ "b53767719b6cd8789392ea3e7e2eb7b8906898f0" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Oct 16 23:31:38 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:07 2007 -0700" }, "message": "security/ cleanups\n\nThis patch contains the following cleanups that are now possible:\n- remove the unused security_operations-\u003einode_xattr_getsuffix\n- remove the no longer used security_operations-\u003eunregister_security\n- remove some no longer required exit code\n- remove a bunch of no longer used exports\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: James Morris \u003cjmorris@namei.org\u003e\nCc: Chris Wright \u003cchrisw@sous-sol.org\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nCc: Serge Hallyn \u003cserue@us.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": "57c521ce6125e15e99e56c902cb8da96bee7b36d", "tree": "d6337e711db2d3baf6dcff89cf2d2bc1dd12a62f", "parents": [ "20510f2f4e2dabb0ff6c13901807627ec9452f98" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Oct 16 23:31:35 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:07 2007 -0700" }, "message": "ifdef struct task_struct::security\n\nFor those who don\u0027t care about CONFIG_SECURITY.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Serge E. Hallyn\" \u003cserge@hallyn.com\u003e\nCc: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Stephen Smalley \u003csds@tycho.nsa.gov\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d2da272a4e581e831e3567a37ef167686f1ea1d3", "tree": "4afa26683994ed19086578a23ae6db688867f176", "parents": [ "f7b4cddcc5aca03e80e357360c9424dfba5056c2" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:30:56 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:03 2007 -0700" }, "message": "migration_call(CPU_DEAD): use spin_lock_irq() instead of task_rq_lock()\n\nChange migration_call(CPU_DEAD) to use direct spin_lock_irq() instead of\ntask_rq_lock(rq-\u003eidle), rq-\u003eidle can\u0027t change its task_rq().\n\nThis makes the code a bit more symmetrical with migrate_dead_tasks()\u0027s path\nwhich uses spin_lock_irq/spin_unlock_irq.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Cliff Wickman \u003ccpw@sgi.com\u003e\nCc: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f7b4cddcc5aca03e80e357360c9424dfba5056c2", "tree": "af2eae61dcd0311a4c51dc7398e9d0f049f37367", "parents": [ "cf7a44168d743ca97863b7f34ed42a45fd7b5ab0" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:30:56 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:03 2007 -0700" }, "message": "do CPU_DEAD migrating under read_lock(tasklist) instead of write_lock_irq(tasklist)\n\nCurrently move_task_off_dead_cpu() is called under\nwrite_lock_irq(tasklist). This means it can\u0027t use task_lock() which is\nneeded to improve migrating to take task\u0027s -\u003ecpuset into account.\n\nChange the code to call move_task_off_dead_cpu() with irqs enabled, and\nchange migrate_live_tasks() to use read_lock(tasklist).\n\nThis all is a preparation for the futher changes proposed by Cliff Wickman, see\n\thttp://marc.info/?t\u003d117327786100003\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Cliff Wickman \u003ccpw@sgi.com\u003e\nCc: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Srivatsa Vaddagiri \u003cvatsa@in.ibm.com\u003e\nCc: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d58ae67813ff97030d2f47ff7d1e5f54e5d7c5b3", "tree": "41d8e470d578636a0e5aeaed2d1e959e0c1a99c7", "parents": [ "22d2b35b200f76085c16a2e14ca30b58510fcbe7" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Tue Oct 16 23:30:27 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:01 2007 -0700" }, "message": "module: return error when mod_sysfs_init() failed\n\nload_module() returns zero when mod_sysfs_init() fails, then the module\nloading will succeed accidentally.\n\nThis patch makes load_module() return error correctly in that case.\n\nAcked-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "28e3fed8b79c76450f264e77c58d0f5fbd2dd739", "tree": "3e1b2f8e5a5f9f15fdaae2a307eead82e38c450c", "parents": [ "b4471cbb09c4694e54092d02715c09fda2eb45ed" ], "author": { "name": "Ralf Baechle", "email": "ralf@linux-mips.org", "time": "Tue Oct 16 23:30:21 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:00 2007 -0700" }, "message": "Compile handle_percpu_irq even for uniprocessor kernels\n\nCompiling handle_percpu_irq only on uniprocessor generates an artificial\nspecial case so a typical use like:\n\n set_irq_chip_and_handler(irq, \u0026some_irq_type, handle_percpu_irq);\n\nneeds to be conditionally compiled only on SMP systems as well and an\nalternative UP construct is usually needed - for no good reason.\n\nThis fixes uniprocessor configurations for some MIPS SMP systems.\n\nSigned-off-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fd5eea4214f72bd7ac77c1c5346a9c096319131a", "tree": "a92c7d1ac79a59777be72fbfdb16d4a410df6de6", "parents": [ "4f9a58d75bfe82ab2b8ba5b8506dfb190a267834" ], "author": { "name": "Andrey Mirkin", "email": "major@openvz.org", "time": "Tue Oct 16 23:30:13 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:43:00 2007 -0700" }, "message": "change inotifyfs magic as the same magic is used for futexfs\n\nRight now futexfs and inotifyfs have one magic 0xBAD1DEA, that looks a\nlittle bit confusing. Use 0xBAD1DEA as magic for futexfs and 0x2BAD1DEA as\nmagic for inotifyfs.\n\nSigned-off-by: Andrey Mirkin \u003cmajor@openvz.org\u003e\nAcked-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db8906da596708865a2ead6a8c2af090255ca549", "tree": "f8882fd724c7972b0042b7fc6dcb9831c5cc2e3d", "parents": [ "1efd24fa05976ea20582c18dd4b80d7311b9b94a" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Tue Oct 16 23:30:11 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:59 2007 -0700" }, "message": "Use KMEM_CACHE macro to create the nsproxy cache\n\nThe blessed way for standard caches is to use it. Besides, this may give\nthis cache a better alignment.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.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": "970a8645ca051225a32401e4c80b50fc0a49c081", "tree": "25600770b729500354d025f078d0ce9f655bdea4", "parents": [ "40aeb400f68090f92010920ddf284b672a1461b8" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:30:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:59 2007 -0700" }, "message": "user.c: #ifdef -\u003emq_bytes\n\nFor those who deselect POSIX message queues.\n\nReduces SLAB size of user_struct from 64 to 32 bytes here, SLUB size -- from\n40 bytes to 32 bytes.\n\n[akpm@linux-foundation.org: fix build]\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "40aeb400f68090f92010920ddf284b672a1461b8", "tree": "1faa00908be014cd6fd7cf77665fd6f1a3e4df8a", "parents": [ "b1e7a4b1bb76f451991112f07a8723eea9d07aa6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:30:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:58 2007 -0700" }, "message": "user.c: deinline\n\nSave some space because uid_hash_find() has 3 callsites.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "22e48eaf587d044ba311a73c6fe0d0deaa8fdb63", "tree": "8407d8f3f9a69b275e9008249e678499ce92253d", "parents": [ "d5aa0daf6d9f327a9c13bc3a203bfac2b8707e2f" ], "author": { "name": "Jan Beulich", "email": "jbeulich@novell.com", "time": "Tue Oct 16 23:29:34 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:56 2007 -0700" }, "message": "constify string/array kparam tracking structures\n\n.. in an effort to make read-only whatever can be made, so that\nCONFIG_DEBUG_RODATA can catch as many issues as possible.\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b012d346c0e914f505d92f730ad1758f73e2953b", "tree": "439afd808718bf36f8a4d2b86339731ef98eb2a6", "parents": [ "0732a552cb31a40db47f7d48e54847190e452da9" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Oct 16 23:29:26 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:55 2007 -0700" }, "message": "make kernel/profile.c:time_hook static\n\n{,un}register_timer_hook() is the API that should be used.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0732a552cb31a40db47f7d48e54847190e452da9", "tree": "9ce130a249dd339556bcc804b0e6ad9600382985", "parents": [ "827afdf093cce59bbbf9dc9f1c2eab86e2232b9e" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Oct 16 23:29:25 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:55 2007 -0700" }, "message": "kernel/sys_ni.c: add dummy sys_ni_syscall() prototype\n\nkernel/sys_ni.c can\u0027t #include \u003clinux/syscalls.h\u003e due to cond_syscall(),\nbut let\u0027s tell gcc to not warn with -Wmissing-prototypes.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e98c3202916d30f0e6f59735801baa69bc3348ac", "tree": "6e405583a9c6f302f90e6be3247ba30e85c34582", "parents": [ "328dfd0f78136082d32d5663d08b514ecba91e68" ], "author": { "name": "Avi Kivity", "email": "avi@qumranet.com", "time": "Tue Oct 16 23:27:31 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:55 2007 -0700" }, "message": "Move PREEMPT_NOTIFIERS into an always-included Kconfig\n\nKconfig.preempt is not included on some archs (for example, m68k). On those\narchs, the Kconfig machinery complains that KVM selects an undefined symbol\nPREEMPT_NOTIFIERS (which lives in Kconfig.preempt).\n\nSo move the offending symbol into a Kconfig file which is included by\neveryone.\n\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nSigned-off-by: Avi Kivity \u003cavi@qumranet.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "42b2dd0a02c512cf59c96f5c227bf54bfe5bbf08", "tree": "f9e4a572804897772d97e2db1ab0d2adcd28840c", "parents": [ "bcbba6c10ef6b14b0542d7ed7380e95168175818" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:27:30 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:55 2007 -0700" }, "message": "Shrink task_struct if CONFIG_FUTEX\u003dn\n\nrobust_list, compat_robust_list, pi_state_list, pi_state_cache are\nreally used if futexes are on.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bcbba6c10ef6b14b0542d7ed7380e95168175818", "tree": "052c7c8062d7348a7caf8c4780d2a65aa81a9ca7", "parents": [ "00cab92f9e91c0feeaca11a485b15175304779d5" ], "author": { "name": "Ken\u0027ichi Ohmichi", "email": "oomichi@mxs.nes.nec.co.jp", "time": "Tue Oct 16 23:27:30 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:54 2007 -0700" }, "message": "add-vmcore: add a prefix \"VMCOREINFO_\" to the vmcoreinfo macros\n\nAdd a prefix \"VMCOREINFO_\" to the vmcoreinfo macros. Old vmcoreinfo macros\nwere defined as generic names SYMBOL/SIZE/OFFSET /LENGTH/CONFIG, and it is\nimpossible to grep for them. So these names should be changed. This\ndiscussion is the following:\nhttp://www.ussg.iu.edu/hypermail/linux/kernel/0709.1/0415.html\n\nSigned-off-by: Ken\u0027ichi Ohmichi \u003coomichi@mxs.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": "6cfa062f01b601206b980e503f62dc593ed8fcaa", "tree": "17cf10b2c569b464a4045679294e5b3c11a29a67", "parents": [ "d768281e97a403815467102bc4b677f6c425a42b" ], "author": { "name": "Ken\u0027ichi Ohmichi", "email": "oomichi@mxs.nes.nec.co.jp", "time": "Tue Oct 16 23:27:28 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:54 2007 -0700" }, "message": "add-vmcore: add nodemask_t\u0027s size and NR_FREE_PAGES\u0027s value to vmcoreinfo_data\n\n[2/3] Add nodemask_t\u0027s size and NR_FREE_PAGES\u0027s value to vmcoreinfo_data.\n The dump filetering command \u0027makedumpfile\u0027(v1.1.6 or before) had assumed\n the above values, and it was not good from the reliability viewpoint.\n So makedumpfile v1.2.0 came to need these values and I created the patch\n to let the kernel output them.\n makedumpfile site:\n https://sourceforge.net/projects/makedumpfile/\n\nSigned-off-by: Ken\u0027ichi Ohmichi \u003coomichi@mxs.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": "d768281e97a403815467102bc4b677f6c425a42b", "tree": "6ab7d064ffde0d105c256d0fbd7f1c629c54d37a", "parents": [ "fd59d231f81cb02870b9cf15f456a897f3669b4e" ], "author": { "name": "Ken\u0027ichi Ohmichi", "email": "oomichi@mxs.nes.nec.co.jp", "time": "Tue Oct 16 23:27:28 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:54 2007 -0700" }, "message": "add-vmcore: cleanup the coding style according to Andrew\u0027s comments\n\n[1/3] Cleanup the coding style according to Andrew\u0027s comments:\nhttp://lists.infradead.org/pipermail/kexec/2007-August/000522.html\n- vmcoreinfo_append_str() should have suitable __attribute__s so that\n the compiler can check its use.\n- vmcoreinfo_max_size should have size_t.\n- Use get_seconds() instead of xtime.tv_sec.\n- Use init_uts_ns.name.release instead of UTS_RELEASE.\n\nSigned-off-by: Ken\u0027ichi Ohmichi \u003coomichi@mxs.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": "fd59d231f81cb02870b9cf15f456a897f3669b4e", "tree": "5713c13bd678774f1ba3c42bfff5008c1812deae", "parents": [ "0e647c04f665e9b3451a1ebe8252b38ffe0207c8" ], "author": { "name": "Ken\u0027ichi Ohmichi", "email": "oomichi@mxs.nes.nec.co.jp", "time": "Tue Oct 16 23:27:27 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:54 2007 -0700" }, "message": "Add vmcoreinfo\n\nThis patch set frees the restriction that makedumpfile users should install a\nvmlinux file (including the debugging information) into each system.\n\nmakedumpfile command is the dump filtering feature for kdump. It creates a\nsmall dumpfile by filtering unnecessary pages for the analysis. To\ndistinguish unnecessary pages, it needs a vmlinux file including the debugging\ninformation. These days, the debugging package becomes a huge file, and it is\nhard to install it into each system.\n\nTo solve the problem, kdump developers discussed it at lkml and kexec-ml. As\nthe result, we reached the conclusion that necessary information for dump\nfiltering (called \"vmcoreinfo\") should be embedded into the first kernel file\nand it should be accessed through /proc/vmcore during the second kernel.\n(http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html)\n\nDan Aloni created the patch set for the above implementation.\n(http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html)\n\nAnd I updated it for multi architectures and memory models.\n(http://lists.infradead.org/pipermail/kexec/2007-August/000479.html)\n\nSigned-off-by: Dan Aloni \u003cda-x@monatomic.org\u003e\nSigned-off-by: Ken\u0027ichi Ohmichi \u003coomichi@mxs.nes.nec.co.jp\u003e\nSigned-off-by: Bernhard Walle \u003cbwalle@suse.de\u003e\nSigned-off-by: 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": "13fbcb731220341537131b32cf01b1e70df7206d", "tree": "be6bd965e921b0918eb7b55626a0196915302f07", "parents": [ "6db840fa7887980ef68a649640d506fe069eef0c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:27:24 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:54 2007 -0700" }, "message": "do_sigaction: don\u0027t worry about signal_pending()\n\ndo_sigaction() returns -ERESTARTNOINTR if signal_pending(). The comment says:\n\n\t* If there might be a fatal signal pending on multiple\n\t* threads, make sure we take it before changing the action.\n\nI think this is not needed. We should only worry about SIGNAL_GROUP_EXIT case,\nbit it implies a pending SIGKILL which can\u0027t be cleared by do_sigaction.\n\nKill this special case.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6db840fa7887980ef68a649640d506fe069eef0c", "tree": "6248c1e65b572f1c2b14c46848e5a18df003f60e", "parents": [ "356d6d5058c8082b9e811838ab2fa27825c947e4" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:27:23 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:54 2007 -0700" }, "message": "exec: RT sub-thread can livelock and monopolize CPU on exec\n\nde_thread() yields waiting for -\u003egroup_leader to be a zombie. This deadlocks\nif an rt-prio execer shares the same cpu with -\u003egroup_leader. Change the code\nto use -\u003egroup_exit_task/notify_count mechanics.\n\nThis patch certainly uglifies the code, perhaps someone can suggest something\nbetter.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c17ac85504efec5f3a9b0c5b05bffd6f30e5b655", "tree": "8643b155ac0530142f2149ddf590ab08bb03b8c2", "parents": [ "b2d9323d139f5c384fa1ef1d74773b4db1c09b3d" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Oct 16 23:27:19 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:53 2007 -0700" }, "message": "Make rcutorture RNG use temporal entropy\n\nRepost of http://lkml.org/lkml/2007/8/10/472 made available by request.\n\nThe locking used by get_random_bytes() can conflict with the\npreempt_disable() and synchronize_sched() form of RCU. This patch changes\nrcutorture\u0027s RNG to gather entropy from the new cpu_clock() interface\n(relying on interrupts, preemption, daemons, and rcutorture\u0027s reader\nthread\u0027s rock-bottom scheduling priority to provide useful entropy), and\nalso adds and EXPORT_SYMBOL_GPL() to make that interface available to GPLed\nkernel modules such as rcutorture.\n\nPasses several hours of rcutorture.\n\n[ego@in.ibm.com: Use raw_smp_processor_id() in rcu_random()]\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Gautham R Shenoy \u003cego@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": "b2d9323d139f5c384fa1ef1d74773b4db1c09b3d", "tree": "ad2705044b5b781aeb1a119d9c8548a044c7e21f", "parents": [ "3075d9da0b4ccc88959db30de80ebd11d2dde175" ], "author": { "name": "john stultz", "email": "johnstul@us.ibm.com", "time": "Tue Oct 16 23:27:18 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:53 2007 -0700" }, "message": "Use num_possible_cpus() instead of NR_CPUS for timer distribution\n\nTo avoid lock contention, we distribute the sched_timer calls across the\ncpus so they do not trigger at the same instant. However, I used NR_CPUS,\nwhich can cause needless grouping on small smp systems depending on your\nkernel config. This patch converts to using num_possible_cpus() so we\nspread it as evenly as possible on every machine.\n\nBriefly tested w/ NR_CPUS\u003d255 and verified reduced contention.\n\nSigned-off-by: John Stultz \u003cjohnstul@us.ibm.com\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ba2a631b14fe8a9c122801c648c49a543d020d8d", "tree": "7f89f02d314c9aec6959066a1285fcd16f5bc2b1", "parents": [ "f44ec6f3f89889a469773b1fd894f8fcc07c29cf" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Oct 16 23:27:16 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:53 2007 -0700" }, "message": "kernel/time/timekeeping.c: cleanups\n\n- remove the no longer required __attribute__((weak)) of xtime_lock\n- remove the following no longer used EXPORT_SYMBOL\u0027s:\n - xtime\n - xtime_lock\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: john stultz \u003cjohnstul@us.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": "715015e8da37c4d13e234def054bcbea116297e9", "tree": "3c3f2cd1d516d13d50ad33519dfe98a75243eb0d", "parents": [ "18442cf28af81378cf8996d264b368bba47cf846" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:27:00 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:52 2007 -0700" }, "message": "wait_task_stopped/continued: remove unneeded p-\u003esignal !\u003d NULL check\n\nThe child was found on -\u003echildren list under tasklist_lock, it must have a\nvalid -\u003esignal. __exit_signal() both removes the task from parent-\u003echildren\nand clears -\u003esignal \"atomically\" under write_lock(tasklist).\n\nRemove unneeded checks.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "18442cf28af81378cf8996d264b368bba47cf846", "tree": "eb260ade275e939f6a3314bd5cbc538fc0cbad56", "parents": [ "442a10cf9e1c350b4de4dd6f22c72618a0b13d7f" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:27:00 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "__group_complete_signal: eliminate unneeded wakeup of -\u003egroup_exit_task\n\nCleanup. __group_complete_signal() wakes up -\u003egroup_exit_task twice. The\nsecond wakeup\u0027s state includes TASK_UNINTERRUPTIBLE, which is not very\nappropriate.\n\nChange the code to pass the \"correct\" argument to signal_wake_up() and kill\nnow unneeded wake_up_process().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "442a10cf9e1c350b4de4dd6f22c72618a0b13d7f", "tree": "13ab9fc1bd97be616511425d422e0c9188fbf5f3", "parents": [ "ebca4cda1133775111e8b09f7124a7e5e391926d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:59 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "wait_task_zombie: don\u0027t fight with non-existing race with a dying ptracee\n\nThe \"p-\u003eexit_signal \u003d\u003d -1 \u0026\u0026 p-\u003eptrace \u003d\u003d 0\" check and the comment are\nbogus. We already did exactly the same check in eligible_child(), we did\nnot drop tasklist_lock since then, and both variables need\nwrite_lock(tasklist) to be changed.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ebca4cda1133775111e8b09f7124a7e5e391926d", "tree": "074d2791b1e7b784aa6126012eeac38d505b2c06", "parents": [ "3ae4cbadf4bf97ee137b921a1b928d2a5dcd26ca" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:59 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "zap_other_threads: don\u0027t optimize thread_group_empty() case\n\nNowadays thread_group_empty() and next_thread() are simple list operations,\nthis optimization doesn\u0027t make sense: we are doing exactly same check one\nline below.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3ae4cbadf4bf97ee137b921a1b928d2a5dcd26ca", "tree": "1d8bea4faeae056da20b2401645900daa3c86c55", "parents": [ "2f4e6e2a814eb1305a873a045401708d73f870bc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:58 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "exit_notify: don\u0027t take tasklist for TIF_SIGPENDING re-targeting\n\n-\u003esiglock provides enough protection to iterate over the thread group.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2f4e6e2a814eb1305a873a045401708d73f870bc", "tree": "8860a0e557c6849143c363eb7c1c9e82333e7fe3", "parents": [ "407af46a967ffd2f208f0a5fb3f1ff954801494a" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:58 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "wait_task_zombie: fix 2/3 races vs forget_original_parent()\n\nTwo threads, T1 and T2. T2 ptraces P, and P is not a child of ptracer\u0027s\nthread group. P exits and goes to TASK_ZOMBIE.\n\nT1 does wait_task_zombie(P):\n\n\tP-\u003eexit_state \u003d TASK_DEAD;\n\t...\n\tread_unlock(\u0026tasklist_lock);\n\n\t\t\t\t\tT2 does exit(), takes tasklist,\n\t\t\t\t\tforget_original_parent() does\n\t\t\t\t\t__ptrace_unlink(P) but doesn\u0027t\n\t\t\t\t\tcall do_notify_parent(P) because\n\t\t\t\t\tp-\u003eexit_state \u003d\u003d EXIT_DEAD.\n\nNow, P is not visible to our process: __ptrace_unlink() removed it from\n-\u003echildren. We should send notification to P-\u003eparent and release P if and\nonly if SIGCHLD is ignored.\n\nAnd we have 3 bugs:\n\n1. P-\u003eparent does do_wait() and gets -ECHILD (P is on -\u003eparent-\u003echildren,\n but its state is TASK_DEAD).\n\n2. // wait_task_zombie() continues\n\n\tif (put_user(...)) {\n\t\t// TODO: is this safe?\n\t\tp-\u003eexit_state \u003d EXIT_ZOMBIE;\n\t\treturn;\n\t}\n\n we return without notification/release, task_struct leaked.\n\n Solution: ignore -EFAULT and proceed. It is an application\u0027s bug if\n we can\u0027t fill infop/stat_addr (in case of VM_FAULT_OOM we have much\n more problems).\n\n3. // wait_task_zombie() continues\n\n\tif (p-\u003ereal_parent !\u003d p-\u003eparent) {\n\t\t// Not taken, it was untraced\u0027ed\n\t\t...\n\t}\n\n\trelease_task(p);\n\n we released the task which we shouldn\u0027t.\n\n Solution: check -\u003ereal_parent !\u003d -\u003eparent before, under tasklist_lock,\n but use ptrace_unlink() instead of __ptrace_unlink() to check -\u003eptrace.\n\nThis patch hopefully solves 2 and 3, the 1st bug will be fixed later, we need\nsome cleanups in forget_original_parent/reparent_thread.\n\nHowever, the first race is very unlikely and not critical, so I hope it makes\nsense to fix 1 and 2 for now.\n\n4. Small cleanup: don\u0027t \"restore\" EXIT_ZOMBIE unless we know we are not going\n to realease the child.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "407af46a967ffd2f208f0a5fb3f1ff954801494a", "tree": "cf9b98874efb3f6a9e244c4f2be6eaf69db3306e", "parents": [ "a8b0ac0873cd911b3bf3d6e2db98f80d0b158d56" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:57 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "wait_task_zombie: remove unneeded child-\u003esignal check\n\nA zombie must have a valid -\u003esignal, we are going to release it and\n__exit_signal() starts with BUG_ON(!sig).\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "84eb646b6eabcd82ec563f30d2d9d40c2054a9c9", "tree": "96219c5844c80c40cbc9814a13a9a72de7430fc7", "parents": [ "8e9073ed027771bcdee4033eb900a3c09ac90a19" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:49 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "handle the multi-threaded init\u0027s exit() properly\n\nWith or without this patch, multi-threaded init\u0027s are not fully supported,\nbut do_exit() is completely wrong. This becomes a real problem when we\nsupport pid namespaces.\n\n1. do_exit() panics when the main thread of /sbin/init exits. It should not\n until the whole thread group exits. Move the code below, under the\n \"if (group_dead)\" check.\n\n Note: this means that forget_original_parent() can use an already dead\n child_reaper()\u0027s task_struct. This is OK for /sbin/init because\n\n \t- do_wait() from alive sub-thread still can reap a zombie, we iterate\n \t over all sub-thread\u0027s -\u003echildren lists\n\n \t- do_notify_parent() will wakeup some alive sub-thread because it sends\n \t the group-wide signal\n\n However, we should remove choose_new_parent()-\u003eBUG_ON(reaper-\u003eexit_state)\n for this.\n\n2. We are playing games with -\u003ensproxy-\u003epid_ns. This code is bogus today, and\n it has to be changed anyway when we really support pid namespaces, just\n remove it.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nRoland McGrath \u003croland@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "045f902de5a6eb5927c0f092c38be7a381f634f0", "tree": "ab85cec6415197016032f97146c8004e846cdd5c", "parents": [ "d2ee7198cc2414aade234a3cebc69e6cbff35d9b" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:47 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "do_sigaction: remove now unneeded recalc_sigpending()\n\nWith the recent changes, do_sigaction()-\u003erecalc_sigpending_and_wake() can\nnever clear TIF_SIGPENDING. Instead, it can set this flag and wake up the\nthread without any reason. Harmless, but unneeded and wastes CPU.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d2ee7198cc2414aade234a3cebc69e6cbff35d9b", "tree": "e89d52b8b64f6eb675add025ba8507863e4bc0f8", "parents": [ "7917ff9a4cefd0500aa4a1b1942da96dbce6999f" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Oct 16 23:26:47 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:51 2007 -0700" }, "message": "pi-futex: set PF_EXITING without taking -\u003epi_lock\n\nIt is a bit annoying that do_exit() takes -\u003epi_lock to set PF_EXITING. All\nwe need is to synchronize with lookup_pi_state() which saw this task\nwithout PF_EXITING under -\u003epi_lock.\n\nChange do_exit() to use spin_unlock_wait().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b15d04af3dd996035d8fa81fc849d049171f9c3", "tree": "cb0dc973b6485edb6fdf0bcdf4a2eeef9a48adad", "parents": [ "d823e3e7541c39b4dfe9c79dbf052b4c39da2965" ], "author": { "name": "Mike Frysinger", "email": "vapier.adi@gmail.com", "time": "Tue Oct 16 23:26:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:50 2007 -0700" }, "message": "printk: add interfaces for external access to the log buffer\n\nAdd two new functions for reading the kernel log buffer. The intention is for\nthem to be used by recovery/dump/debug code so the kernel log can be easily\nretrieved/parsed in a crash scenario, but they are generic enough for other\npeople to dream up other fun uses.\n\n[akpm@linux-foundation.org: buncha fixes]\nSigned-off-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nCc: Robin Getz \u003crgetz@blackfin.uclinux.org\u003e\nCc: Greg Ungerer \u003cgerg@snapgear.com\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nAcked-by: Tim Bird \u003ctim.bird@am.sony.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a4d63e729edad704af95e5f2a56e8c8eaaa5216b", "tree": "d2f8e48d9c74550e3054ba2b8ac9f5e88784f8ad", "parents": [ "6d76013381ed28979cd122eb4b249a88b5e384fa" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Tue Oct 16 23:26:40 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:50 2007 -0700" }, "message": "kernel/rtmutex-debug.c: cleanups\n\nThis patch contains the following cleanups:\n- make the needlessly global variable rt_trace_on static\n- remove the unused global function deadlock_trace_off()\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6d76013381ed28979cd122eb4b249a88b5e384fa", "tree": "f37571fad8690dead2344d1aa0ea86d5f778181f", "parents": [ "ae0b78d09dc1d521551e225a9831aba1eded518f" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Tue Oct 16 23:26:40 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:50 2007 -0700" }, "message": "Add /sys/module/name/notes\n\nThis patch adds the /sys/module/\u003cname\u003e/notes/ magic directory, which has a\nfile for each allocated SHT_NOTE section that appears in \u003cname\u003e.ko. This\nis the counterpart for each module of /sys/kernel/notes for vmlinux.\nReading this delivers the contents of the module\u0027s SHT_NOTE sections. This\nlets userland easily glean any detailed information about that module\u0027s\nbuild that was stored there at compile time (e.g. by ld --build-id).\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1d99493b3a68e40e56459ea3565d4402fb6e5f3a", "tree": "362ebcf8871e0fad07aa754bb5194de3a2cd64d3", "parents": [ "f13ef7754f724842dbf5ae6d85d0604fff0d1a84" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Tue Oct 16 23:26:29 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:49 2007 -0700" }, "message": "Fix CONFIG_DEBUG_SHIRQ trigger on free_irq()\n\nAndy Gospodarek pointed out that because we return in the middle of the\nfree_irq() function, we never actually do call the IRQ handler that just\ngot deregistered. This should fix it, although I expect Andrew will want\nto convert those \u0027return\u0027s to \u0027break\u0027. That\u0027s a separate change though.\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Andy Gospodarek \u003candy@greyhouse.net\u003e\nCc: Fernando Luis Vzquez Cao \u003cfernando@oss.ntt.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": "af49d9248fca6f26cbdb01918334f71d9040df80", "tree": "5d6a7f4d5ca55ff17fbfc98cacac37be62c7a4a3", "parents": [ "d9c9bef1345e5d9258febce2a37e4d40319fa728" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Oct 16 23:26:27 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:49 2007 -0700" }, "message": "Remove \"unsafe\" from module struct\n\nAdrian Bunk points out that \"unsafe\" was used to mark modules touched by\nthe deprecated MOD_INC_USE_COUNT interface, which has long gone. It\u0027s time\nto remove the member from the module structure, as well.\n\nIf you want a module which can\u0027t unload, don\u0027t register an exit function.\n\n(Vlad Yasevich says SCTP is now safe to unload, so just remove the\n__unsafe there).\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Shannon Nelson \u003cshannon.nelson@intel.com\u003e\nAcked-by: Dan Williams \u003cdan.j.williams@intel.com\u003e\nAcked-by: Vlad Yasevich \u003cvladislav.yasevich@hp.com\u003e\nCc: Sridhar Samudrala \u003csri@us.ibm.com\u003e\nCc: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bf020cb7b3918e186309db21d75cb91ebafc9d6f", "tree": "7a03b7a566ce3f3119812e092b72e3c65fc8b91a", "parents": [ "a9022e9cb9e919e31d5bc15fcef5c7186740645e" ], "author": { "name": "Avi Kivity", "email": "avi@qumranet.com", "time": "Tue Oct 16 23:26:24 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:48 2007 -0700" }, "message": "time: simplify smp_call_function_single() call sequence\n\nsmp_call_function_single() now knows how to call the function on the\ncurrent cpu.\n\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a9022e9cb9e919e31d5bc15fcef5c7186740645e", "tree": "48aea98aec8d9822155b2054bc60f9142f478769", "parents": [ "ea0b7d5da0024df1c6f2c2139dbeb4fd260baac6" ], "author": { "name": "Jesper Juhl", "email": "jesper.juhl@gmail.com", "time": "Tue Oct 16 23:26:23 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:48 2007 -0700" }, "message": "Clean up duplicate includes in kernel/\n\nThis patch cleans up duplicate includes in\n\tkernel/\n\nSigned-off-by: Jesper Juhl \u003cjesper.juhl@gmail.com\u003e\nAcked-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nReviewed-by: Satyam Sharma \u003cssatyam@cse.iitk.ac.in\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "040b5c6f9503f2d6b35c335f8537bb3035d35547", "tree": "71f1693fbcaf9e2a953e66fdf13bbbc20510b60e", "parents": [ "c4f3b63fe15b4629aa1ec163c95ab30423d0f76a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 23:26:10 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:47 2007 -0700" }, "message": "SLAB_PANIC more (proc, posix-timers, shmem)\n\nThese aren\u0027t modular, so SLAB_PANIC is OK.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c4f3b63fe15b4629aa1ec163c95ab30423d0f76a", "tree": "432723f1c7ac2fcff0aa57377c31187140d69145", "parents": [ "a5f2ce3c6024a5bb895647b6bd88ecae5001020a" ], "author": { "name": "Ravikiran G Thirumalai", "email": "kiran@scalex86.org", "time": "Tue Oct 16 23:26:09 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:47 2007 -0700" }, "message": "softlockup: add a /proc tuning parameter\n\nControl the trigger limit for softlockup warnings. This is useful for\ndebugging softlockups, by lowering the softlockup_thresh to identify\npossible softlockups earlier.\n\nThis patch:\n1. Adds a sysctl softlockup_thresh with valid values of 1-60s\n (Higher value to disable false positives)\n2. Changes the softlockup printk to print the cpu softlockup time\n\n[akpm@linux-foundation.org: Fix various warnings and add definition of \"two\"]\nSigned-off-by: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nSigned-off-by: Shai Fultheim \u003cshai@scalex86.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a5f2ce3c6024a5bb895647b6bd88ecae5001020a", "tree": "10bb864bc252489ce6c7070796a6e7966982bb23", "parents": [ "43581a10075492445f65234384210492ff333eba" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 16 23:26:08 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:47 2007 -0700" }, "message": "softlockup watchdog: style cleanups\n\nkernel/softirq.c grew a few style uncleanlinesses in the past few\nmonths, clean that up. No functional changes:\n\n text data bss dec hex filename\n 1126 76 4 1206 4b6 softlockup.o.before\n 1129 76 4 1209 4b9 softlockup.o.after\n\n( the 3 bytes .text increase is due to the \"\u003c1\u003e\" appended to one of\n the printk messages. )\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "43581a10075492445f65234384210492ff333eba", "tree": "2bcec45ff17207f57f8c4f4744b22411d1aeae6c", "parents": [ "ad3b82795f3f6e641081790409a051312622f2a6" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 16 23:26:08 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:47 2007 -0700" }, "message": "softlockup: improve debug output\n\nImprove the debuggability of kernel lockups by enhancing the debug\noutput of the softlockup detector: print the task that causes the lockup\nand try to print a more intelligent backtrace.\n\nThe old format was:\n\n BUG: soft lockup detected on CPU#1!\n [\u003cc0105e4a\u003e] show_trace_log_lvl+0x19/0x2e\n [\u003cc0105f43\u003e] show_trace+0x12/0x14\n [\u003cc0105f59\u003e] dump_stack+0x14/0x16\n [\u003cc015f6bc\u003e] softlockup_tick+0xbe/0xd0\n [\u003cc013457d\u003e] run_local_timers+0x12/0x14\n [\u003cc01346b8\u003e] update_process_times+0x3e/0x63\n [\u003cc0145fb8\u003e] tick_sched_timer+0x7c/0xc0\n [\u003cc0140a75\u003e] hrtimer_interrupt+0x135/0x1ba\n [\u003cc011bde7\u003e] smp_apic_timer_interrupt+0x6e/0x80\n [\u003cc0105aa3\u003e] apic_timer_interrupt+0x33/0x38\n [\u003cc0104f8a\u003e] syscall_call+0x7/0xb\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nThe new format is:\n\n BUG: soft lockup detected on CPU#1! [prctl:2363]\n\n Pid: 2363, comm: prctl\n EIP: 0060:[\u003cc013915f\u003e] CPU: 1\n EIP is at sys_prctl+0x24/0x18c\n EFLAGS: 00000213 Not tainted (2.6.22-cfs-v20 #26)\n EAX: 00000001 EBX: 000003e7 ECX: 00000001 EDX: f6df0000\n ESI: 000003e7 EDI: 000003e7 EBP: f6df0fb0 DS: 007b ES: 007b FS: 00d8\n CR0: 8005003b CR2: 4d8c3340 CR3: 3731d000 CR4: 000006d0\n [\u003cc0105e4a\u003e] show_trace_log_lvl+0x19/0x2e\n [\u003cc0105f43\u003e] show_trace+0x12/0x14\n [\u003cc01040be\u003e] show_regs+0x1ab/0x1b3\n [\u003cc015f807\u003e] softlockup_tick+0xef/0x108\n [\u003cc013457d\u003e] run_local_timers+0x12/0x14\n [\u003cc01346b8\u003e] update_process_times+0x3e/0x63\n [\u003cc0145fcc\u003e] tick_sched_timer+0x7c/0xc0\n [\u003cc0140a89\u003e] hrtimer_interrupt+0x135/0x1ba\n [\u003cc011bde7\u003e] smp_apic_timer_interrupt+0x6e/0x80\n [\u003cc0105aa3\u003e] apic_timer_interrupt+0x33/0x38\n [\u003cc0104f8a\u003e] syscall_call+0x7/0xb\n \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nNote that in the old format we only knew that some system call locked\nup, we didnt know _which_. With the new format we know that it\u0027s at a\nspecific place in sys_prctl(). [which was where i created an artificial\nkernel lockup to test the new format.]\n\nThis is also useful if the lockup happens in user-space - the user-space\nEIP (and other registers) will be printed too. (such a lockup would\neither suggest that the task was running at SCHED_FIFO:99 and looping\nfor more than 10 seconds, or that the softlockup detector has a\nfalse-positive.)\n\nThe task name is printed too first, just in case we dont manage to print\na useful backtrace.\n\n[satyam@infradead.org: fix warning]\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Satyam Sharma \u003csatyam@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a115d5caca1a2905ba7a32b408a6042b20179aaa", "tree": "fe79f98f103d0d8776ca7971882e9c21753ae67f", "parents": [ "a3b13c23f186ecb57204580cc1f2dbe9c284953a" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 16 23:26:06 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:47 2007 -0700" }, "message": "fix the softlockup watchdog to actually work\n\nthis Xen related commit:\n\n commit 966812dc98e6a7fcdf759cbfa0efab77500a8868\n Author: Jeremy Fitzhardinge \u003cjeremy@goop.org\u003e\n Date: Tue May 8 00:28:02 2007 -0700\n\n Ignore stolen time in the softlockup watchdog\n\nbroke the softlockup watchdog to never report any lockups. (!)\n\nprint_timestamp defaults to 0, this makes the following condition\nalways true:\n\n\tif (print_timestamp \u003c (touch_timestamp + 1) ||\n\nand we\u0027ll in essence never report soft lockups.\n\napparently the functionality of the soft lockup watchdog was never\nactually tested with that patch applied ...\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@goop.org\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a3b13c23f186ecb57204580cc1f2dbe9c284953a", "tree": "7f7b1de1c0c7e45b6dfc91b1d09639aaf1051291", "parents": [ "3806204ca9017a2cf2d849430f26e2b62666f5b2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 16 23:26:06 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:46 2007 -0700" }, "message": "softlockup: use cpu_clock() instead of sched_clock()\n\nsched_clock() is not a reliable time-source, use cpu_clock() instead.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bbe373f2c60b2aa36c3231734a5afc5271a06718", "tree": "00146d69594672ca41e35be8ff9b349e8751ab5c", "parents": [ "7213f5066fc8a17c78389fe245de522b5cf0648a" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Tue Oct 16 23:25:58 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:46 2007 -0700" }, "message": "oom: compare cpuset mems_allowed instead of exclusive ancestors\n\nInstead of testing for overlap in the memory nodes of the the nearest\nexclusive ancestor of both current and the candidate task, it is better to\nsimply test for intersection between the task\u0027s mems_allowed in their task\ndescriptors. This does not require taking callback_mutex since it is only\nused as a hint in the badness scoring.\n\nTasks that do not have an intersection in their mems_allowed with the current\ntask are not explicitly restricted from being OOM killed because it is quite\npossible that the candidate task has allocated memory there before and has\nsince changed its mems_allowed.\n\nCc: Andrea Arcangeli \u003candrea@suse.de\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-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": "fe071d7e8aae5745c009c808bb8933f22a9e305a", "tree": "757dc7c41a7b56974c383743103fb711c976c288", "parents": [ "ff0ceb9deb6eb017f52900b708d49cfa77bf25fb" ], "author": { "name": "David Rientjes", "email": "rientjes@google.com", "time": "Tue Oct 16 23:25:56 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:46 2007 -0700" }, "message": "oom: add oom_kill_allocating_task sysctl\n\nAdds a new sysctl, \u0027oom_kill_allocating_task\u0027, which will automatically kill\nthe OOM-triggering task instead of scanning through the tasklist to find a\nmemory-hogging target. This is helpful for systems with an insanely large\nnumber of tasks where scanning the tasklist significantly degrades\nperformance.\n\nCc: Andrea Arcangeli \u003candrea@suse.de\u003e\nAcked-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-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": "4ba9b9d0ba0a49d91fa6417c7510ee36f48cf957", "tree": "191b4f45f926e44b882b1e87a9a85dc12230b892", "parents": [ "b811c202a0edadaac7242ab834fe7ba409978ae7" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Tue Oct 16 23:25:51 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:45 2007 -0700" }, "message": "Slab API: remove useless ctor parameter and reorder parameters\n\nSlab constructors currently have a flags parameter that is never used. And\nthe order of the arguments is opposite to other slab functions. The object\npointer is placed before the kmem_cache pointer.\n\nConvert\n\n ctor(void *object, struct kmem_cache *s, unsigned long flags)\n\nto\n\n ctor(struct kmem_cache *s, void *object)\n\nthroughout the kernel\n\n[akpm@linux-foundation.org: coupla fixes]\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3e26c149c358529b1605f8959341d34bc4b880a3", "tree": "9d173b1753b86bcf03a8591e2509e3162234447c", "parents": [ "04fbfdc14e5f48463820d6b9807daa5e9c92c51f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:50 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:45 2007 -0700" }, "message": "mm: dirty balancing for tasks\n\nBased on ideas of Andrew:\n http://marc.info/?l\u003dlinux-kernel\u0026m\u003d102912915020543\u0026w\u003d2\n\nScale the bdi dirty limit inversly with the tasks dirty rate.\nThis makes heavy writers have a lower dirty limit than the occasional writer.\n\nAndrea proposed something similar:\n http://lwn.net/Articles/152277/\n\nThe main disadvantage to his patch is that he uses an unrelated quantity to\nmeasure time, which leaves him with a workload dependant tunable. Other than\nthat the two approaches appear quite similar.\n\n[akpm@linux-foundation.org: fix warning]\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "04fbfdc14e5f48463820d6b9807daa5e9c92c51f", "tree": "c62905212c8c6373b2258c7f528398d3c831b075", "parents": [ "145ca25eb2fbd20d4faf1bad4628c7650332058f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Oct 16 23:25:50 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:45 2007 -0700" }, "message": "mm: per device dirty threshold\n\nScale writeback cache per backing device, proportional to its writeout speed.\n\nBy decoupling the BDI dirty thresholds a number of problems we currently have\nwill go away, namely:\n\n - mutual interference starvation (for any number of BDIs);\n - deadlocks with stacked BDIs (loop, FUSE and local NFS mounts).\n\nIt might be that all dirty pages are for a single BDI while other BDIs are\nidling. By giving each BDI a \u0027fair\u0027 share of the dirty limit, each one can have\ndirty pages outstanding and make progress.\n\nA global threshold also creates a deadlock for stacked BDIs; when A writes to\nB, and A generates enough dirty pages to get throttled, B will never start\nwriteback until the dirty pages go away. Again, by giving each BDI its own\n\u0027independent\u0027 dirty limit, this problem is avoided.\n\nSo the problem is to determine how to distribute the total dirty limit across\nthe BDIs fairly and efficiently. A DBI that has a large dirty limit but does\nnot have any dirty pages outstanding is a waste.\n\nWhat is done is to keep a floating proportion between the DBIs based on\nwriteback completions. This way faster/more active devices get a larger share\nthan slower/idle devices.\n\n[akpm@linux-foundation.org: fix warnings]\n[hugh@veritas.com: Fix occasional hang when a task couldn\u0027t get out of balance_dirty_pages]\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b9dca1e0fcb696716840a3bc8f20a6941b484dbf", "tree": "1fb2198b192b35382756e288ba33df6f37fcf6d4", "parents": [ "b1a8c172c318534b96d0f0f1aecdad3898118b98" ], "author": { "name": "Srivatsa Vaddagiri", "email": "vatsa@linux.vnet.ibm.com", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "message": "sched: fix new task startup crash\n\nChild task may be added on a different cpu that the one on which parent\nis running. In which case, task_new_fair() should check whether the new\nborn task\u0027s parent entity should be added as well on the cfs_rq.\n\nPatch below fixes the problem in task_new_fair.\n\nThis could fix the put_prev_task_fair() crashes reported.\n\nReported-by: Kamalesh Babulal \u003ckamalesh@linux.vnet.ibm.com\u003e\nReported-by: Andy Whitcroft \u003capw@shadowen.org\u003e\nSigned-off-by: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b1a8c172c318534b96d0f0f1aecdad3898118b98", "tree": "f42b724f02be6f4959e2edcb29687fd5bc54ca69", "parents": [ "908a7c1b9b80d06708177432020c80d147754691" ], "author": { "name": "Dhaval Giani", "email": "dhaval@linux.vnet.ibm.com", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "message": "sched: fix !SYSFS build breakage\n\nWhen CONFIG_SYSFS is not set, CONFIG_FAIR_USER_SCHED fails to build\nwith\n\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1488): undefined reference to `kernel_subsys\u0027\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1490): undefined reference to `kernel_subsys\u0027\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1480): undefined reference to `kernel_subsys\u0027\nkernel/built-in.o: In function `uids_kobject_init\u0027:\n(.init.text+0x1494): undefined reference to `kernel_subsys\u0027\n\nThis patch fixes this build error.\n\nSigned-off-by: Srivatsa Vaddagiri \u003cvatsa@linux.vnet.ibm.com\u003e\nSigned-off-by: Dhaval Giani \u003cdhaval@linux.vnet.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "908a7c1b9b80d06708177432020c80d147754691", "tree": "c3015123d79cb7484e1f64030512ab5a920747e5", "parents": [ "cd79007634854f9e936e2369890f2512f94b8759" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "message": "sched: fix improper load balance across sched domain\n\nWe recently discovered a nasty performance bug in the kernel CPU load\nbalancer where we were hit by 50% performance regression.\n\nWhen tasks are assigned to a subset of CPUs that span across\nsched_domains (either ccNUMA node or the new multi-core domain) via\ncpu affinity, kernel fails to perform proper load balance at\nthese domains, due to several logic in find_busiest_group() miss\nidentified busiest sched group within a given domain. This leads to\ninadequate load balance and causes 50% performance hit.\n\nTo give you a concrete example, on a dual-core, 2 socket numa system,\nthere are 4 logical cpu, organized as:\n\nCPU0 attaching sched-domain:\n domain 0: span 0003 groups: 0001 0002\n domain 1: span 000f groups: 0003 000c\nCPU1 attaching sched-domain:\n domain 0: span 0003 groups: 0002 0001\n domain 1: span 000f groups: 0003 000c\nCPU2 attaching sched-domain:\n domain 0: span 000c groups: 0004 0008\n domain 1: span 000f groups: 000c 0003\nCPU3 attaching sched-domain:\n domain 0: span 000c groups: 0008 0004\n domain 1: span 000f groups: 000c 0003\n\nIf I run 2 tasks with CPU affinity set to 0x5. There are situation\nwhere cpu0 has run queue length of 2, and cpu2 will be idle. The\nkernel load balancer is unable to balance out these two tasks over\ncpu0 and cpu2 due to at least three logics in find_busiest_group()\nthat heavily bias load balance towards power saving mode. e.g. while\ndetermining \"busiest\" variable, kernel only set it when\n\"sum_nr_running \u003e group_capacity\". This test is flawed that\n\"sum_nr_running\" is not necessary same as\nsum-tasks-allowed-to-run-within-the sched-group. The end result is\nthat kernel \"think\" everything is balanced, but in reality we have an\nimbalance and thus causing one CPU to be over-subscribed and leaving\nother idle. There are two other logic in the same function will also\ncausing similar effect. The nastiness of this bug is that kernel not\nbe able to get unstuck in this unfortunate broken state. From what\nwe\u0027ve seen in our environment, kernel will stuck in imbalanced state\nfor extended period of time and it is also very easy for the kernel to\nstuck into that state (it\u0027s pretty much 100% reproducible for us).\n\nSo proposing the following fix: add addition logic in\nfind_busiest_group to detect intrinsic imbalance within the busiest\ngroup. When such condition is detected, load balance goes into spread\nmode instead of default grouping mode.\n\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cd79007634854f9e936e2369890f2512f94b8759", "tree": "904e9d4f406bf5d48699027f415e6acd12cc9121", "parents": [ "ebb3e820b83e426ee331bae6d8fb0e54f472a25d" ], "author": { "name": "Milton Miller", "email": "miltonm@bga.com", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 17 16:55:11 2007 +0200" }, "message": "sched: more robust sd-sysctl entry freeing\n\nIt occurred to me this morning that the procname field was dynamically\nallocated and needed to be freed. I started to put in break statements\nwhen allocation failed but it was approaching 50% error handling code.\n\nI came up with this alternative of looping while entry-\u003emode is set and\nchecking proc_handler instead of -\u003etable. Alternatively, the string\nversion of the domain name and cpu number could be stored the structs.\n\nI verified by compiling CONFIG_DEBUG_SLAB and checking the allocation\ncounts after taking a cpuset exclusive and back.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f20bf6125605acbbc7eb8c9420d7221c91aa83eb", "tree": "ce3dd753431dd32b346aa19f2f7b6bb84bb1f22e", "parents": [ "8636225e8d23e6079d43f56faf415bd71b589dc0" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 16 16:09:20 2007 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 10:01:50 2007 -0700" }, "message": "time: introduce xtime_seconds\n\nimprove performance of sys_time(). sys_time() returns time in seconds,\nbut it does so by calling do_gettimeofday() and then returning the\ntv_sec portion of the GTOD time. But the data structure \"xtime\", which\nis updated by every timer/scheduler tick, already offers HZ granularity\ntime.\n\nthe patch improves the sysbench oltp macrobenchmark by 4-5% on an AMD\ndual-core system:\n\nv2.6.23:\n\n#threads\n\n 1: transactions: 4073 (407.23 per sec.)\n 2: transactions: 8530 (852.81 per sec.)\n 3: transactions: 8321 (831.88 per sec.)\n 4: transactions: 8407 (840.58 per sec.)\n 5: transactions: 8070 (806.74 per sec.)\n\nv2.6.23 + sys_time-speedup.patch:\n\n 1: transactions: 4281 (428.09 per sec.)\n 2: transactions: 8910 (890.85 per sec.)\n 3: transactions: 8659 (865.79 per sec.)\n 4: transactions: 8676 (867.34 per sec.)\n 5: transactions: 8532 (852.91 per sec.)\n\nand by 4-5% on an Intel dual-core system too:\n\n2.6.23:\n\n 1: transactions: 4560 (455.94 per sec.)\n 2: transactions: 10094 (1009.30 per sec.)\n 3: transactions: 9755 (975.36 per sec.)\n 4: transactions: 9859 (985.78 per sec.)\n 5: transactions: 9701 (969.72 per sec.)\n\n2.6.23 + sys_time-speedup.patch:\n\n 1: transactions: 4779 (477.84 per sec.)\n 2: transactions: 10103 (1010.14 per sec.)\n 3: transactions: 10141 (1013.93 per sec.)\n 4: transactions: 10371 (1036.89 per sec.)\n 5: transactions: 10178 (1017.50 per sec.)\n\n(the more CPUs the system has, the more speedup this patch gives for\nthis particular workload.)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f438d914b220051d4cbc65cbc5d98e163c85c93b", "tree": "75e7fda155a8494595f6ae0539bbb64ef98230f6", "parents": [ "49dce689ad4ef0fd1f970ef762168e4bd46f69a3" ], "author": { "name": "Masami Hiramatsu", "email": "mhiramat@redhat.com", "time": "Tue Oct 16 01:27:49 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:10 2007 -0700" }, "message": "kprobes: support kretprobe blacklist\n\nIntroduce architecture dependent kretprobe blacklists to prohibit users\nfrom inserting return probes on the function in which kprobes can be\ninserted but kretprobes can not.\n\nThis patch also removes \"__kprobes\" mark from \"__switch_to\" on x86_64 and\nregisters \"__switch_to\" to the blacklist on x86-64, because that mark is to\nprohibit user from inserting only kretprobe.\n\nSigned-off-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Prasanna S Panchamukhi \u003cprasanna@in.ibm.com\u003e\nAcked-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "607717a65d92858fd925bec05baae4d142719f27", "tree": "b7faea733fe3426881e63bc7549db9c97c8bdf59", "parents": [ "2ed6dc34f9ed39bb8e4c81ea1056f0ba56315841" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Tue Oct 16 01:27:43 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:09 2007 -0700" }, "message": "cpuset: remove sched domain hooks from cpusets\n\nRemove the cpuset hooks that defined sched domains depending on the setting\nof the \u0027cpu_exclusive\u0027 flag.\n\nThe cpu_exclusive flag can only be set on a child if it is set on the\nparent.\n\nThis made that flag painfully unsuitable for use as a flag defining a\npartitioning of a system.\n\nIt was entirely unobvious to a cpuset user what partitioning of sched\ndomains they would be causing when they set that one cpu_exclusive bit on\none cpuset, because it depended on what CPUs were in the remainder of that\ncpusets siblings and child cpusets, after subtracting out other\ncpu_exclusive cpusets.\n\nFurthermore, there was no way on production systems to query the\nresult.\n\nUsing the cpu_exclusive flag for this was simply wrong from the get go.\n\nFortunately, it was sufficiently borked that so far as I know, almost no\nsuccessful use has been made of this. One real time group did use it to\naffectively isolate CPUs from any load balancing efforts. They are willing\nto adapt to alternative mechanisms for this, such as someway to manipulate\nthe list of isolated CPUs on a running system. They can do without this\npresent cpu_exclusive based mechanism while we develop an alternative.\n\nThere is a real risk, to the best of my understanding, of users\naccidentally setting up a partitioned scheduler domains, inhibiting desired\nload balancing across all their CPUs, due to the nonobvious (from the\ncpuset perspective) side affects of the cpu_exclusive flag.\n\nFurthermore, since there was no way on a running system to see what one was\ndoing with sched domains, this change will be invisible to any using code.\nUnless they have real insight to the scheduler load balancing choices, they\nwill be unable to detect that this change has been made in the kernel\u0027s\nbehaviour.\n\nInitial discussion on lkml of this patch has generated much comment. My\n(probably controversial) take on that discussion is that it has reached a\nrough concensus that the current cpuset cpu_exclusive mechanism for\ndefining sched domains is borked. There is no concensus on the\nreplacement. But since we can remove this mechanism, and since its\ncontinued presence risks causing unwanted partitioning of the schedulers\nload balancing, we should remove it while we can, as we proceed to work the\nreplacement scheduler domain mechanisms.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Christoph Lameter \u003cclameter@engr.sgi.com\u003e\nCc: Dinakar Guniguntala \u003cdino@in.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0ac15559150a20d39d381a6be44cdea373584222", "tree": "10be83ffe3197f029beffd242b7ddf21dcc25a35", "parents": [ "dab8f4963ae0a79b945b8ed297e30d390a9d9f50" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Oct 16 01:26:37 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:04 2007 -0700" }, "message": "m32r: convert to generic sys_ptrace\n\nConvert m32r to the generic sys_ptrace. The conversion requires an\narchitecture hook after ptrace_attach which this patch adds. The hook\nwill also be needed for a conersion of ia64 to the generic ptrace code.\n\nThanks to Hirokazu Takata for fixing a bug in the first version of this\ncode.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "54f9f80d6543fb7b157d3b11e2e7911dc1379790", "tree": "70d34e45f4d1694609db25da0ccad90b4b0ad473", "parents": [ "e4e574b767ba63101cfda2b42d72f38546319297" ], "author": { "name": "Adam Litke", "email": "agl@us.ibm.com", "time": "Tue Oct 16 01:26:20 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:02 2007 -0700" }, "message": "hugetlb: Add hugetlb_dynamic_pool sysctl\n\nThe maximum size of the huge page pool can be controlled using the overall\nsize of the hugetlb filesystem (via its \u0027size\u0027 mount option). However in the\ncommon case the this will not be set as the pool is traditionally fixed in\nsize at boot time. In order to maintain the expected semantics, we need to\nprevent the pool expanding by default.\n\nThis patch introduces a new sysctl controlling dynamic pool resizing. When\nthis is enabled the pool will expand beyond its base size up to the size of\nthe hugetlb filesystem. It is disabled by default.\n\nSigned-off-by: Adam Litke \u003cagl@us.ibm.com\u003e\nAcked-by: Andy Whitcroft \u003capw@shadowen.org\u003e\nAcked-by: Dave McCracken \u003cdave.mccracken@oracle.com\u003e\nCc: William Irwin \u003cbill.irwin@oracle.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Ken Chen \u003ckenchen@google.com\u003e\nCc: Badari Pulavarty \u003cpbadari@us.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": "75884fb1c6388f3713ddcca662f3647b3129aaeb", "tree": "7debdd89fd94d099de3d3763b47af00ef6359d9d", "parents": [ "48f13bf3e742fca8aab87f6c39451d03bf5952d4" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Oct 16 01:26:10 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:01 2007 -0700" }, "message": "memory unplug: memory hotplug cleanup\n\nA clean up patch for \"scanning memory resource [start, end)\" operation.\n\nNow, find_next_system_ram() function is used in memory hotplug, but this\ninterface is not easy to use and codes are complicated.\n\nThis patch adds walk_memory_resouce(start,len,arg,func) function.\nThe function \u0027func\u0027 is called per valid memory resouce range in [start,pfn).\n\n[pbadari@us.ibm.com: Error handling in walk_memory_resource()]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.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": "e12ba74d8ff3e2f73a583500d7095e406df4d093", "tree": "a0d3385b65f0b3e1e00b0bbf11b75e7538a93edb", "parents": [ "c361be55b3128474aa66d31092db330b07539103" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Tue Oct 16 01:25:52 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:43:00 2007 -0700" }, "message": "Group short-lived and reclaimable kernel allocations\n\nThis patch marks a number of allocations that are either short-lived such as\nnetwork buffers or are reclaimable such as inode allocations. When something\nlike updatedb is called, long-lived and unmovable kernel allocations tend to\nbe spread throughout the address space which increases fragmentation.\n\nThis patch groups these allocations together as much as possible by adding a\nnew MIGRATE_TYPE. The MIGRATE_RECLAIMABLE type is for allocations that can be\nreclaimed on demand, but not moved. i.e. they can be migrated by deleting\nthem and re-reading the information from elsewhere.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0e1e7c7a739562a321fda07c7cd2a97a7114f8f8", "tree": "f2148e5b667152681625c19cf8b2a556500994ea", "parents": [ "523b945855a1427000ffc707c610abe5947ae607" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Tue Oct 16 01:25:38 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:59 2007 -0700" }, "message": "Memoryless nodes: Use N_HIGH_MEMORY for cpusets\n\ncpusets try to ensure that any node added to a cpuset\u0027s mems_allowed is\non-line and contains memory. The assumption was that online nodes contained\nmemory. Thus, it is possible to add memoryless nodes to a cpuset and then add\ntasks to this cpuset. This results in continuous series of oom-kill and\napparent system hang.\n\nChange cpusets to use node_states[N_HIGH_MEMORY] [a.k.a. node_memory_map] in\nplace of node_online_map when vetting memories. Return error if admin\nattempts to write a non-empty mems_allowed node mask containing only\nmemoryless-nodes.\n\nSigned-off-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nSigned-off-by: Bob Picco \u003cbob.picco@hp.com\u003e\nSigned-off-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Mel Gorman \u003cmel@skynet.ie\u003e\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4199cfa02b982f4c739e8a6a304d6a40e1935d25", "tree": "c917040b3ed5be157bee34a03408f31cf330dad0", "parents": [ "2dca53a9dabe76f49209c9128313347510416c68" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Tue Oct 16 01:25:34 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:58 2007 -0700" }, "message": "Memoryless nodes: Allow profiling data to fall back to other nodes\n\nProcessors on memoryless nodes must be able to fall back to remote nodes in\norder to get a profiling buffer. This may lead to excessive NUMA traffic but\nI think we should allow this rather than failing.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nAcked-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nAcked-by: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nAcked-by: Bob Picco \u003cbob.picco@hp.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Mel Gorman \u003cmel@skynet.ie\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "74a0b5762713a26496db72eac34fbbed46f20fce", "tree": "4a14df7c07ebc16283454f33713519a0e10b5c43", "parents": [ "d5a7430ddcdb598261d70f7eb1bf450b5be52085" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Oct 16 01:24:07 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:50 2007 -0700" }, "message": "x86: optimize page faults like all other achitectures and kill notifier cruft\n\nx86(-64) are the last architectures still using the page fault notifier\ncruft for the kprobes page fault hook. This patch converts them to the\nproper direct calls, and removes the now unused pagefault notifier bits\naswell as the cruft in kprobes.c that was related to this mess.\n\nI know Andi didn\u0027t really like this, but all other architecture maintainers\nagreed the direct calls are much better and besides the obvious cruft\nremoval a common way of dealing with kprobes across architectures is\nimportant aswell.\n\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: fix sparc64]\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: Prasanna S Panchamukhi \u003cprasanna@in.ibm.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d5a7430ddcdb598261d70f7eb1bf450b5be52085", "tree": "3b94672e0dbc2bff125de3266908f1a47a17b795", "parents": [ "083576112940fda783d716fd5ccc744f81667b2f" ], "author": { "name": "Mike Travis", "email": "travis@sgi.com", "time": "Tue Oct 16 01:24:05 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:50 2007 -0700" }, "message": "Convert cpu_sibling_map to be a per cpu variable\n\nConvert cpu_sibling_map from a static array sized by NR_CPUS to a per_cpu\nvariable. This saves sizeof(cpumask_t) * NR unused cpus. Access is mostly\nfrom startup and CPU HOTPLUG functions.\n\nSigned-off-by: Mike Travis \u003ctravis@sgi.com\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nCc: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: \"Siddha, Suresh B\" \u003csuresh.b.siddha@intel.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bfe8df3d314bddf30758bd738e0087e80964760c", "tree": "d04db4fb2592e2d416073681903f05f5b30f204b", "parents": [ "1bcf548293aef19b0797348332cf1dfbf2116cef" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Tue Oct 16 01:23:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:49 2007 -0700" }, "message": "slow down printk during boot\n\nOptionally add a boot delay after each kernel printk() call, crudely\nmeasured in milliseconds, with a maximum delay of 10 seconds per printk.\n\nEnable CONFIG_BOOT_PRINTK_DELAY\u003dy and then add (e.g.):\n\"lpj\u003dloops_per_jiffy boot_delay\u003d100\"\nto the kernel command line.\n\nIt has been useful in cases like \"during boot, my machine just reboots or the\nscreen goes black\" by slowing down printk, (and adding initcall_debug), we can\nusually see the last thing that happened before the lights went out which is\nusually a valuable clue.\n\n[akpm@linux-foundation.org: not all architectures implement CONFIG_HZ]\n[akpm@linux-foundation.org: fix lots of stuff]\n[bunk@stusta.de: kernel/printk.c: make 2 variables static]\n[heiko.carstens@de.ibm.com: fix slow down printk on boot compile error]\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.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": "1bcf548293aef19b0797348332cf1dfbf2116cef", "tree": "80b2535e3dd2a6d23c15b91e10cae227310a44ee", "parents": [ "e6716b87d5c9edf19c711212785cd30c6ec21868" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@sw.ru", "time": "Tue Oct 16 01:23:45 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Oct 16 09:42:49 2007 -0700" }, "message": "Consolidate PTRACE_DETACH\n\nIdentical handlers of PTRACE_DETACH go into ptrace_request().\nNot touching compat code.\nNot touching archs that don\u0027t call ptrace_request.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@sw.ru\u003e\nAcked-by: Christoph Hellwig \u003chch@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f4921aff5b174349bc36551f142a5dbac782ea3f", "tree": "bdff8ca1531977ad1d04ac8d70e10f8dfbb26c38", "parents": [ "419217cb1d0266f62cbea6cdc6b1d1324350bc34", "05c88babab957dfd63bd351b25042d80bd854dd0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 15 10:46:05 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 15 10:47:35 2007 -0700" }, "message": "Merge git://git.linux-nfs.org/pub/linux/nfs-2.6\n\n* git://git.linux-nfs.org/pub/linux/nfs-2.6: (131 commits)\n NFSv4: Fix a typo in nfs_inode_reclaim_delegation\n NFS: Add a boot parameter to disable 64 bit inode numbers\n NFS: nfs_refresh_inode should clear cache_validity flags on success\n NFS: Fix a connectathon regression in NFSv3 and NFSv4\n NFS: Use nfs_refresh_inode() in ops that aren\u0027t expected to change the inode\n SUNRPC: Don\u0027t call xprt_release in call refresh\n SUNRPC: Don\u0027t call xprt_release() if call_allocate fails\n SUNRPC: Fix buggy UDP transmission\n [23/37] Clean up duplicate includes in\n [2.6 patch] net/sunrpc/rpcb_clnt.c: make struct rpcb_program static\n SUNRPC: Use correct type in buffer length calculations\n SUNRPC: Fix default hostname created in rpc_create()\n nfs: add server port to rpc_pipe info file\n NFS: Get rid of some obsolete macros\n NFS: Simplify filehandle revalidation\n NFS: Ensure that nfs_link() returns a hashed dentry\n NFS: Be strict about dentry revalidation when doing exclusive create\n NFS: Don\u0027t zap the readdir caches upon error\n NFS: Remove the redundant nfs_reval_fsid()\n NFSv3: Always use directory post-op attributes in nfs3_proc_lookup\n ...\n\nFix up trivial conflict due to sock_owned_by_user() cleanup manually in\nnet/sunrpc/xprtsock.c\n" }, { "commit": "419217cb1d0266f62cbea6cdc6b1d1324350bc34", "tree": "01f80c026cc94dfc13b3a16d2fce3ba41c69d54f", "parents": [ "4937ce87959629d31e9b09cf5bdf1e12a305c805", "14358e6ddaed27499d7d366b3e65c3e46b39e1c4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 15 10:40:41 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Oct 15 10:40:41 2007 -0700" }, "message": "Merge branch \u0027v2.6.24-lockdep\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep\n\n* \u0027v2.6.24-lockdep\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep:\n lockdep: annotate dir vs file i_mutex\n lockdep: per filesystem inode lock class\n lockdep: annotate kprobes irq fiddling\n lockdep: annotate rcu_read_{,un}lock{,_bh}\n lockdep: annotate journal_start()\n lockdep: s390: connect the sysexit hook\n lockdep: x86_64: connect the sysexit hook\n lockdep: i386: connect the sysexit hook\n lockdep: syscall exit check\n lockdep: fixup mutex annotations\n lockdep: fix mismatched lockdep_depth/curr_chain_hash\n lockdep: Avoid /proc/lockdep \u0026 lock_stat infinite output\n lockdep: maintainers\n" }, { "commit": "9c63d9c021f375a2708ad79043d6f4dd1291a085", "tree": "99cf4af567ae79f42cc47d69c59407515539ba1f", "parents": [ "71e20f1873d46e138c26ce83f8fe54b7221f572f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:20 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:20 2007 +0200" }, "message": "sched: sync wakeups preempt too\n\nmake sure sync wakeups preempt too - the scheduler will not\noverschedule as we\u0027ve got various throttles against that.\nAs a result, sync wakeups can be used more widely in the kernel\n(to signal wakeup affinity between tasks), and no arbitrary\nlatencies will be introduced either.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "71e20f1873d46e138c26ce83f8fe54b7221f572f", "tree": "3b5c5083d3ffcf7c9d7ddad81acf30c09197ef99", "parents": [ "d172fcd3ae1ca7ac27ec8904242fd61e0e11d332" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: affine sync wakeups\n\nmake sync wakeups affine for cache-cold tasks: if a cache-cold task\nis woken up by a sync wakeup then use the opportunity to migrate it\nstraight away. (the two tasks are \u0027related\u0027 because they communicate)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "94886b84b1bcdc95f34f70e7fce407efefe472e1", "tree": "fe612688c702061cf04441350f9200a08f1dc28d", "parents": [ "9ac52315d4cf5f561f36dabaf0720c00d3553162" ], "author": { "name": "Laurent Vivier", "email": "Laurent.Vivier@bull.net", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: guest CPU accounting: maintain stats in account_system_time()\n\nmodify account_system_time() to add cputime to cpustat-\u003eguest if we are\nrunning a VCPU. We add this cputime to cpustat-\u003euser instead of\ncpustat-\u003esystem because this part of KVM code is in fact user code\nalthough it is executed in the kernel. We duplicate VCPU time between\nguest and user to allow an unmodified \"top(1)\" to display correct value.\nA modified \"top(1)\" is able to display good cpu user time and cpu guest\ntime by subtracting cpu guest time from cpu user time. Update \"gtime\" in\ntask_struct accordingly.\n\nSigned-off-by: Laurent Vivier \u003cLaurent.Vivier@bull.net\u003e\nAcked-by: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9ac52315d4cf5f561f36dabaf0720c00d3553162", "tree": "afe7284f34a65d2540fcb2a9b764834f9d790fa7", "parents": [ "5e84cfde51cf303d368fcb48f22059f37b3872de" ], "author": { "name": "Laurent Vivier", "email": "Laurent.Vivier@bull.net", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: guest CPU accounting: add guest-CPU /proc/\u003cpid\u003e/stat fields\n\nlike for cpustat, introduce the \"gtime\" (guest time of the task) and\n\"cgtime\" (guest time of the task children) fields for the\ntasks. Modify signal_struct and task_struct.\n\nModify /proc/\u003cpid\u003e/stat to display these new fields.\n\nSigned-off-by: Laurent Vivier \u003cLaurent.Vivier@bull.net\u003e\nAcked-by: Avi Kivity \u003cavi@qumranet.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6323469f9b72530eb90c96ba162cc70f2f4611de", "tree": "4b19d38ecb5f9d21ea5120980abe165fdce0c13a", "parents": [ "ad1cdc1d7883e88f936f7888a092e4e3e6d8c631" ], "author": { "name": "Milton Miller", "email": "miltonm@bga.com", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: domain sysctl fixes: add terminator comment\n\nwe had an incorrect-terminator bug in sd_alloc_ctl_domain_table()\nbefore, so add a comment that documents it.\n\nSigned-off-by: Milton Miller \u003cmiltonm@bga.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ad1cdc1d7883e88f936f7888a092e4e3e6d8c631", "tree": "3ef43757e9355a31c61dd57b190f1790c5e3b49f", "parents": [ "6382bc90f5664c450afc1f896e7ddb35ba182af9" ], "author": { "name": "Milton Miller", "email": "miltonm@bga.com", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: domain sysctl fixes: do not crash on allocation failure\n\nNow that we are calling this at runtime, a more relaxed error path is\nsuggested. If an allocation fails, we just register the partial table,\nwhich will show empty directories.\n\nSigned-off-by: Milton Miller \u003cmiltonm@bga.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6382bc90f5664c450afc1f896e7ddb35ba182af9", "tree": "01e40b9d5f44bfeed712cf8d394a16aa93598436", "parents": [ "97b6ea7b6369d51a451a7d5747a7939a593fdd9c" ], "author": { "name": "Milton Miller", "email": "miltonm@bga.com", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: domain sysctl fixes: unregister the sysctl table before domains\n\nUnregister and free the sysctl table before destroying domains, then\nrebuild and register after creating the new domains. This prevents the\nsysctl table from pointing to freed memory for root to write.\n\nSigned-off-by: Milton Miller \u003cmiltonm@bga.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "97b6ea7b6369d51a451a7d5747a7939a593fdd9c", "tree": "7cc4b183909a1bdcbae6274862552938c180f740", "parents": [ "5cf9f062c8e33d5a09eaa447550330162b2a96ed" ], "author": { "name": "Milton Miller", "email": "miltonm@bga.com", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: domain sysctl fixes: use for_each_online_cpu()\n\ninit_sched_domain_sysctl was walking cpus 0-n and referencing per_cpu\nvariables. If the cpus_possible mask is not contigious this will result\nin a crash referencing unallocated data. If the online mask is not\ncontigious then we would show offline cpus and miss online ones.\n\nSigned-off-by: Milton Miller \u003cmiltonm@bga.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5cf9f062c8e33d5a09eaa447550330162b2a96ed", "tree": "93095cd5531605db4084a5189fef41ef4e36d3cb", "parents": [ "0dbee3a6b006dbe814d002cb18e94bf24a216451" ], "author": { "name": "Milton Miller", "email": "miltonm@bga.com", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "sched: domain sysctl fixes: use kcalloc()\n\nkcalloc checks for n * sizeof(element) overflows and it zeros.\n\nSigned-off-by: Milton Miller \u003cmiltonm@bga.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0dbee3a6b006dbe814d002cb18e94bf24a216451", "tree": "e847b88145ccc2c643ef0fe2244bd1e778b51272", "parents": [ "7a6c6bcee029a978f866511d6e41dbc7301fde4c" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:19 2007 +0200" }, "message": "Make scheduler debug file operations const\n\nIn general, struct file_operations are const in the kernel, to not have\nfalse cacheline sharing and to catch bugs at compiletime with accidental\nwrites to them. The new scheduler code introduces a new non-const one;\nfix this up.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6bc1665ba71de0f207391b01b187b21b2619c15c", "tree": "efb135b9e389046a70816bb59df11bd265f93f53", "parents": [ "cc367732ff0b1c63d0d7bdd11e6d1661794ef6a3" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: allow the immediate migration of cache-cold tasks\n\nallow the immediate migration of cache-cold tasks.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cc367732ff0b1c63d0d7bdd11e6d1661794ef6a3", "tree": "27c65e05bf19644224937624ca356c876e6d1318", "parents": [ "2d92f22784b7b8879ebe3254e44c92cb8792b0dd" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: debug, improve migration statistics\n\nadd new migration statistics when SCHED_DEBUG and SCHEDSTATS\nis enabled. Available in /proc/\u003cPID\u003e/sched.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2d92f22784b7b8879ebe3254e44c92cb8792b0dd", "tree": "22f5fb824a9b49ada87c504fca21db27d5d117b3", "parents": [ "ff56b2f01537aef7237d5ac8bf6bfbb409c1a127" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: debug: increase width of debug line\n\nincrease width of debug line - in preparation of more debugging info.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ff56b2f01537aef7237d5ac8bf6bfbb409c1a127", "tree": "52f7a687f8d3e15b17dc8e6a1789cc537e87d6c8", "parents": [ "da84d96176729fb48a8458561e5d8647103168b8" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: activate task_hot() only on fair-scheduled tasks\n\nactivate task_hot() only for fair-scheduled tasks (i.e. disable it\nfor RT tasks).\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "da84d96176729fb48a8458561e5d8647103168b8", "tree": "24c952d956178faa9ac8b5c505513c93a87f4f6b", "parents": [ "e5f32a3856caabe745381279f7f32e3b581b59dc" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Oct 15 17:00:18 2007 +0200" }, "message": "sched: reintroduce cache-hot affinity\n\nreintroduce a simplified version of cache-hot/cold scheduling\naffinity. This improves performance with certain SMP workloads,\nsuch as sysbench.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "e5f32a3856caabe745381279f7f32e3b581b59dc" }