)]}' { "log": [ { "commit": "6f7f41851cc4508b672ab71dd48a154712faf15c", "tree": "7eecd1c529e60c220a4376a51f47f83d77a89da2", "parents": [ "82cd19cd93727d494c530ddd6a7338033c3fd86e", "e1e359273576ee8fe27021356b064c772ed29af3" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 28 15:54:24 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 28 15:54:24 2010 -0800" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n ring_buffer: Off-by-one and duplicate events in ring_buffer_read_page\n" }, { "commit": "a4790c9457ae973d598bbd5ce58f9eaa2dd1576b", "tree": "997c23d8182567d1b294022d81f9a315b2a642ef", "parents": [ "08da5a32b7789289f48f3037b64df2945b5dafc2", "bcbea798f8f1492052c23ceb4fbc2a96013a3865" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Dec 24 12:59:09 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Dec 24 12:59:09 2010 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:\n percpu: print out alloc information with KERN_DEBUG instead of KERN_INFO\n kthread_work: make lockdep happy\n" }, { "commit": "e1e359273576ee8fe27021356b064c772ed29af3", "tree": "c1a8aa53fb3044162851aa7a7bc9d72f710232d1", "parents": [ "2ce494a3dac331fdbb2590e5fa0598956dd21b8b" ], "author": { "name": "David Sharp", "email": "dhsharp@google.com", "time": "Wed Dec 22 16:38:24 2010 -0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Dec 23 12:09:30 2010 -0500" }, "message": "ring_buffer: Off-by-one and duplicate events in ring_buffer_read_page\n\nFix two related problems in the event-copying loop of\nring_buffer_read_page.\n\nThe loop condition for copying events is off-by-one.\n\"len\" is the remaining space in the caller-supplied page.\n\"size\" is the size of the next event (or two events).\nIf len \u003d\u003d size, then there is just enough space for the next event.\n\nsize was set to rb_event_ts_length, which may include the size of two\nevents if the first event is a time-extend, in order to assure time-\nextends are kept together with the event after it. However,\nrb_advance_reader always advances by one event. This would result in the\nevent after any time-extend being duplicated. Instead, get the size of\na single event for the memcpy, but use rb_event_ts_length for the loop\ncondition.\n\nSigned-off-by: David Sharp \u003cdhsharp@google.com\u003e\nLKML-Reference: \u003c1293064704-8101-1-git-send-email-dhsharp@google.com\u003e\nLKML-Reference: \u003cAANLkTin7nLrRPc9qGjdjHbeVDDWiJjAiYyb-L\u003dgH85bx@mail.gmail.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "4be2c95d1f7706ca0e74499f2bd118e1cee19669", "tree": "97e8e316b9072ea84cb0afa5a161b1d1b10640cd", "parents": [ "4e06fd14d5fa78826397c891654a37e5a36ee827" ], "author": { "name": "Jeff Mahoney", "email": "jeffm@suse.com", "time": "Tue Dec 21 17:24:30 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 22 19:43:34 2010 -0800" }, "message": "taskstats: pad taskstats netlink response for aligment issues on ia64\n\nThe taskstats structure is internally aligned on 8 byte boundaries but the\nlayout of the aggregrate reply, with two NLA headers and the pid (each 4\nbytes), actually force the entire structure to be unaligned. This causes\nthe kernel to issue unaligned access warnings on some architectures like\nia64. Unfortunately, some software out there doesn\u0027t properly unroll the\nNLA packet and assumes that the start of the taskstats structure will\nalways be 20 bytes from the start of the netlink payload. Aligning the\nstart of the taskstats structure breaks this software, which we don\u0027t\nwant. So, for now the alignment only happens on architectures that\nrequire it and those users will have to update to fixed versions of those\npackages. Space is reserved in the packet only when needed. This ifdef\nshould be removed in several years e.g. 2012 once we can be confident\nthat fixed versions are installed on most systems. We add the padding\nbefore the aggregate since the aggregate is already a defined type.\n\nCommit 85893120 (\"delayacct: align to 8 byte boundary on 64-bit systems\")\npreviously addressed the alignment issues by padding out the pid field.\nThis was supposed to be a compatible change but the circumstances\ndescribed above mean that it wasn\u0027t. This patch backs out that change,\nsince it was a hack, and introduces a new NULL attribute type to provide\nthe padding. Padding the response with 4 bytes avoids allocating an\naligned taskstats structure and copying it back. Since the structure\nweighs in at 328 bytes, it\u0027s too big to do it on the stack.\n\nSigned-off-by: Jeff Mahoney \u003cjeffm@suse.com\u003e\nReported-by: Brian Rogers \u003cbrian@xyzw.org\u003e\nCc: Jeff Mahoney \u003cjeffm@suse.com\u003e\nCc: Guillaume Chazarain \u003cguichaz@gmail.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4f32e9b1f812fd6c00cc85a127583fefbdedaedc", "tree": "c0e1d3e1d90758d2f4f3f8cad6beea316d68b5a0", "parents": [ "90a8a73c06cc32b609a880d48449d7083327e11a" ], "author": { "name": "Yong Zhang", "email": "yong.zhang0@gmail.com", "time": "Wed Dec 22 10:27:53 2010 +0100" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Dec 22 10:27:53 2010 +0100" }, "message": "kthread_work: make lockdep happy\n\nspinlock in kthread_worker and wait_queue_head in kthread_work both\nshould be lockdep sensible, so change the interface to make it\nsuiltable for CONFIG_LOCKDEP.\n\ntj: comment update\n\nReported-by: Nicolas \u003cnicolas.mailhot@laposte.net\u003e\nSigned-off-by: Yong Zhang \u003cyong.zhang0@gmail.com\u003e\nSigned-off-by: Andy Walls \u003cawalls@md.metrocast.net\u003e\nTested-by: Andy Walls \u003cawalls@md.metrocast.net\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "de5e9d58200aafea4a33abcadcd12eb69eaba5c4", "tree": "6f94c2e558772070d283d25a4ba3d9b1738bb95b", "parents": [ "55ec86f848a5f872fd43f5d7206464a0af419110", "050c6c9b896625d9fa498265be17b82c5fc65257" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Dec 20 09:05:26 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Dec 20 09:05:26 2010 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Remove debugging check\n" }, { "commit": "050c6c9b896625d9fa498265be17b82c5fc65257", "tree": "998a73afe0c3eddd35754cd4de54a65fc4313cec", "parents": [ "8e92c20183ed0579d94501311b81c42b65cb2129" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 19 23:24:27 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Dec 19 23:24:27 2010 +0100" }, "message": "sched: Remove debugging check\n\nLinus reported that the new warning introduced by commit f26f9aff6aaf\n\"Sched: fix skip_clock_update optimization\" triggers. The need_resched\nflag can be set by other CPUs asynchronously so this debug check is\nbogus - remove it.\n\nReported-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nLKML-Reference: \u003cAANLkTinJ8hAG1TpyC+CSYPR47p48+1\u003dE7fiC45hMXT_1@mail.gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "55ec86f848a5f872fd43f5d7206464a0af419110", "tree": "409fdf94a443468ebca6d90908752325ca177cc8", "parents": [ "21228e455756be11fbbcae7e1a184ad9d842f687", "147dd5610c8d1bacb88a6c1dfdaceaf257946ed0", "d949750fed168b6553ca11ed19e4affd19d7a4d7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Dec 19 10:44:54 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Dec 19 10:44:54 2010 -0800" }, "message": "Merge branches \u0027x86-fixes-for-linus\u0027 and \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86-32: Make sure we can map all of lowmem if we need to\n x86, vt-d: Handle previous faults after enabling fault handling\n x86: Enable the intr-remap fault handling after local APIC setup\n x86, vt-d: Fix the vt-d fault handling irq migration in the x2apic mode\n x86, vt-d: Quirk for masking vtd spec errors to platform error handling logic\n x86, xsave: Use alloc_bootmem_align() instead of alloc_bootmem()\n bootmem: Add alloc_bootmem_align()\n x86, gcc-4.6: Use gcc -m options when building vdso\n x86: HPET: Chose a paranoid safe value for the ETIME check\n x86: io_apic: Avoid unused variable warning when CONFIG_GENERIC_PENDING_IRQ\u003dn\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Fix off by one in perf_swevent_init()\n perf: Fix duplicate events with multiple-pmu vs software events\n ftrace: Have recordmcount honor endianness in fn_ELF_R_INFO\n scripts/tags.sh: Add magic for trace-events\n tracing: Fix panic when lseek() called on \"trace\" opened for writing\n" }, { "commit": "21228e455756be11fbbcae7e1a184ad9d842f687", "tree": "594ff10478aed5f264294e8a718e80a3e44ab34c", "parents": [ "0a59228168d3722b71f8e3dbc623316fb4be78f4", "8e92c20183ed0579d94501311b81c42b65cb2129" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Dec 19 10:37:37 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Dec 19 10:37:37 2010 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix the irqtime code for 32bit\n sched: Fix the irqtime code to deal with u64 wraps\n nohz: Fix get_next_timer_interrupt() vs cpu hotplug\n Sched: fix skip_clock_update optimization\n sched: Cure more NO_HZ load average woes\n" }, { "commit": "46bdfe6a50b88942f5323f837a3afd93a1c86e60", "tree": "9fe5add84d9bcca4670b1af98940d7267c3a3571", "parents": [ "c15524a40a1603dc56a8691c4f50172fb86c23d8", "a2c606d53ab71dee6410f10ef0adf67321d60e06" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 18 10:13:24 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Dec 18 10:13:24 2010 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:\n x86: avoid high BIOS area when allocating address space\n x86: avoid E820 regions when allocating address space\n x86: avoid low BIOS area when allocating address space\n resources: add arch hook for preventing allocation in reserved areas\n Revert \"resources: support allocating space within a region from the top down\"\n Revert \"PCI: allocate bus resources from the top down\"\n Revert \"x86/PCI: allocate space from the end of a region, not the beginning\"\n Revert \"x86: allocate space within a region top-down\"\n Revert \"PCI: fix pci_bus_alloc_resource() hang, prefer positive decode\"\n PCI: Update MCP55 quirk to not affect non HyperTransport variants\n" }, { "commit": "fcb119183c73bf0781009713f303e28b1fb13d3e", "tree": "94d739189963cecafae1b497845eb1e856558e49", "parents": [ "c0f5ac5426f7fd82b23dd5c6a1e633b290294a08" ], "author": { "name": "Bjorn Helgaas", "email": "bjorn.helgaas@hp.com", "time": "Thu Dec 16 10:38:46 2010 -0700" }, "committer": { "name": "Jesse Barnes", "email": "jbarnes@virtuousgeek.org", "time": "Fri Dec 17 10:01:09 2010 -0800" }, "message": "resources: add arch hook for preventing allocation in reserved areas\n\nThis adds arch_remove_reservations(), which an arch can implement if it\nneeds to protect part of the address space from allocation.\n\nSometimes that can be done by just putting a region in the resource tree,\nbut there are cases where that doesn\u0027t work well. For example, x86 BIOS\nE820 reservations are not related to devices, so they may overlap part of,\nall of, or more than a device resource, so they may not end up at the\ncorrect spot in the resource tree.\n\nAcked-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nSigned-off-by: Bjorn Helgaas \u003cbjorn.helgaas@hp.com\u003e\nSigned-off-by: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\n" }, { "commit": "c0f5ac5426f7fd82b23dd5c6a1e633b290294a08", "tree": "e271f4e49d7d32a4637d958b619b3b0836f7079c", "parents": [ "6db45b76eaa08133187f2cb44d496de7e9503aa8" ], "author": { "name": "Bjorn Helgaas", "email": "bjorn.helgaas@hp.com", "time": "Thu Dec 16 10:38:41 2010 -0700" }, "committer": { "name": "Jesse Barnes", "email": "jbarnes@virtuousgeek.org", "time": "Fri Dec 17 10:00:59 2010 -0800" }, "message": "Revert \"resources: support allocating space within a region from the top down\"\n\nThis reverts commit e7f8567db9a7f6b3151b0b275e245c1cef0d9c70.\n\nAcked-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nSigned-off-by: Bjorn Helgaas \u003cbjorn.helgaas@hp.com\u003e\nSigned-off-by: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\n" }, { "commit": "be8cd644c49dca4212e975455c8e7119b848ebe8", "tree": "5c7c7aa4ab10c823381918f91d0d475acea49aec", "parents": [ "1497dd1d29c6a53fcd3c80f7ac8d0e0239e7389e" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Dec 11 21:46:44 2010 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Dec 16 17:08:58 2010 +0100" }, "message": "PM / Hibernate: Restore old swap signature to avoid user space breakage\n\nCommit 3624eb0 (PM / Hibernate: Modify signature used to mark swap)\nattempted to modify hibernate signature used to mark swap partitions\ncontaining hibernation images, so that old kernels don\u0027t try to\nhandle compressed images. However, this change broke resume from\nhibernation on Fedora 14 that apparently doesn\u0027t pass the resume\u003d\nargument to the kernel and tries to trigger resume from early user\nspace. This doesn\u0027t work, because the signature is now different,\nso the old signature has to be restored to avoid the problem.\n\nAddresses https://bugzilla.kernel.org/show_bug.cgi?id\u003d22732 .\n\nReported-by: Dr. David Alan Gilbert \u003clinux@treblig.org\u003e\nReported-by: Zhang Rui \u003crui.zhang@intel.com\u003e\nReported-by: Pascal Chapperon \u003cpascal.chapperon@wanadoo.fr\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "1497dd1d29c6a53fcd3c80f7ac8d0e0239e7389e", "tree": "5c5fa252c06826d2bcfd3121698c79eeba613d8a", "parents": [ "b0c3844d8af6b9f3f18f31e1b0502fbefa2166be" ], "author": { "name": "Takashi Iwai", "email": "tiwai@suse.de", "time": "Fri Dec 10 00:16:39 2010 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Dec 16 17:08:43 2010 +0100" }, "message": "PM / Hibernate: Fix PM_POST_* notification with user-space suspend\n\nThe user-space hibernation sends a wrong notification after the image\nrestoration because of thinko for the file flag check. RDONLY\ncorresponds to hibernation and WRONLY to restoration, confusingly.\n\nSigned-off-by: Takashi Iwai \u003ctiwai@suse.de\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: stable@kernel.org\n" }, { "commit": "d949750fed168b6553ca11ed19e4affd19d7a4d7", "tree": "a98953ef3448b7b4909f1d90be266e0cfbdff328", "parents": [ "ce677831a4abd0f9f957c90ac6f6a0d0472bafb4", "e63233f75a1a6bfa97ffb52a20cc6801a4c63fb2" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:21:24 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:21:24 2010 +0100" }, "message": "Merge branch \u0027tip/perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent\n" }, { "commit": "8e92c20183ed0579d94501311b81c42b65cb2129", "tree": "3a00ccaf8222c994fd7071129dc357321c10c9df", "parents": [ "fe44d62122829959e960bc699318d58966922a69" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Dec 09 14:15:34 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:17:47 2010 +0100" }, "message": "sched: Fix the irqtime code for 32bit\n\nSince the irqtime accounting is using non-atomic u64 and can be read\nfrom remote cpus (writes are strictly cpu local, reads are not) we\nhave to deal with observing partial updates.\n\nWhen we do observe partial updates the clock movement (in particular,\n-\u003eclock_task movement) will go funny (in either direction), a\nsubsequent clock update (observing the full update) will make it go\nfunny in the oposite direction.\n\nSince we rely on these clocks to be strictly monotonic we cannot\nsuffer backwards motion. One possible solution would be to simply\nignore all backwards deltas, but that will lead to accounting\nartefacts, most notable: clock_task + irq_time !\u003d clock, this\ninaccuracy would end up in user visible stats.\n\nTherefore serialize the reads using a seqcount.\n\nReviewed-by: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nReported-by: Mikael Pettersson \u003cmikpe@it.uu.se\u003e\nTested-by: Mikael Pettersson \u003cmikpe@it.uu.se\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1292242434.6803.200.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fe44d62122829959e960bc699318d58966922a69", "tree": "bacb96098cffa7b7b8d80506a2026b5125557f2a", "parents": [ "dbd87b5af055a0cc9bba17795c9a2b0d17795389" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Dec 09 14:15:34 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:17:46 2010 +0100" }, "message": "sched: Fix the irqtime code to deal with u64 wraps\n\nSome ARM systems have a short sched_clock() [ which needs to be fixed\ntoo ], but this exposed a bug in the irq_time code as well, it doesn\u0027t\ndeal with wraps at all.\n\nFix the irq_time code to deal with u64 wraps by re-writing the code to\nonly use delta increments, which avoids the whole issue.\n\nReviewed-by: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nReported-by: Mikael Pettersson \u003cmikpe@it.uu.se\u003e\nTested-by: Mikael Pettersson \u003cmikpe@it.uu.se\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1292242433.6803.199.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ce677831a4abd0f9f957c90ac6f6a0d0472bafb4", "tree": "755fb098fa0e27bfa710272cd5686dabc7922360", "parents": [ "5167695753c63444a9e6cbbef136200a16c7a225" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Sun Oct 24 21:50:42 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Dec 16 11:14:31 2010 +0100" }, "message": "perf: Fix off by one in perf_swevent_init()\n\nThe perf_swevent_enabled[] array has PERF_COUNT_SW_MAX elements.\n\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101024195041.GT5985@bicker\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0fcdcfbbc98f70f559e4b36773a69972489a6d8f", "tree": "108d532e9c79b76c6adaf8b564749a19ffbbce66", "parents": [ "6d5e93c2aa1248b25f9de0eaca1dca038e31d79d", "2d64672ed38721b7a3815009d79bfb90a1f34a17" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 14 18:50:10 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 14 18:50:10 2010 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:\n workqueue: It is likely that WORKER_NOT_RUNNING is true\n MAINTAINERS: Add workqueue entry\n workqueue: check the allocation of system_unbound_wq\n" }, { "commit": "2d64672ed38721b7a3815009d79bfb90a1f34a17", "tree": "91a52918b036a07bf8008eeae6e7dccf967fa4e0", "parents": [ "3e6cd7a4b6a04cf354a18c9d2e7ecec8fa1772fb" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Dec 03 23:12:33 2010 -0500" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Dec 14 15:05:54 2010 +0100" }, "message": "workqueue: It is likely that WORKER_NOT_RUNNING is true\n\nRunning the annotate branch profiler on three boxes, including my\nmain box that runs firefox, evolution, xchat, and is part of the distcc farm,\nshowed this with the likelys in the workqueue code:\n\n correct incorrect % Function File Line\n ------- --------- - -------- ---- ----\n 96 996253 99 wq_worker_sleeping workqueue.c 703\n 96 996247 99 wq_worker_waking_up workqueue.c 677\n\nThe likely()s in this case were assuming that WORKER_NOT_RUNNING will\nmost likely be false. But this is not the case. The reason is\n(and shown by adding trace_printks and testing it) that most of the time\nWORKER_PREP is set.\n\nIn worker_thread() we have:\n\n\tworker_clr_flags(worker, WORKER_PREP);\n\n\t[ do work stuff ]\n\n\tworker_set_flags(worker, WORKER_PREP, false);\n\n(that \u0027false\u0027 means not to wake up an idle worker)\n\nThe wq_worker_sleeping() is called from schedule when a worker thread\nis putting itself to sleep. Which happens most of the time outside\nof that [ do work stuff ].\n\nThe wq_worker_waking_up is called by the wakeup worker code, which\nis also callod outside that [ do work stuff ].\n\nThus, the likely and unlikely used by those two functions are actually\nbackwards.\n\nRemove the annotation and let gcc figure it out.\n\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "dbd87b5af055a0cc9bba17795c9a2b0d17795389", "tree": "72d6e2ca94e2ce3c93fa5942008eed97af41aacd", "parents": [ "f26f9aff6aaf67e9a430d16c266f91b13a5bff64" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Dec 01 10:11:09 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 08 20:15:07 2010 +0100" }, "message": "nohz: Fix get_next_timer_interrupt() vs cpu hotplug\n\nThis fixes a bug as seen on 2.6.32 based kernels where timers got\nenqueued on offline cpus.\n\nIf a cpu goes offline it might still have pending timers. These will\nbe migrated during CPU_DEAD handling after the cpu is offline.\nHowever while the cpu is going offline it will schedule the idle task\nwhich will then call tick_nohz_stop_sched_tick().\n\nThat function in turn will call get_next_timer_intterupt() to figure\nout if the tick of the cpu can be stopped or not. If it turns out that\nthe next tick is just one jiffy off (delta_jiffies \u003d\u003d 1)\ntick_nohz_stop_sched_tick() incorrectly assumes that the tick should\nnot stop and takes an early exit and thus it won\u0027t update the load\nbalancer cpu.\n\nJust afterwards the cpu will be killed and the load balancer cpu could\nbe the offline cpu.\n\nOn 2.6.32 based kernel get_nohz_load_balancer() gets called to decide\non which cpu a timer should be enqueued (see __mod_timer()). Which\nleads to the possibility that timers get enqueued on an offline cpu.\nThese will never expire and can cause a system hang.\n\nThis has been observed 2.6.32 kernels. On current kernels\n__mod_timer() uses get_nohz_timer_target() which doesn\u0027t have that\nproblem. However there might be other problems because of the too\nearly exit tick_nohz_stop_sched_tick() in case a cpu goes offline.\n\nThe easiest and probably safest fix seems to be to let\nget_next_timer_interrupt() just lie and let it say there isn\u0027t any\npending timer if the current cpu is offline.\n\nI also thought of moving migrate_[hr]timers() from CPU_DEAD to\nCPU_DYING, but seeing that there already have been fixes at least in\nthe hrtimer code in this area I\u0027m afraid that this could add new\nsubtle bugs.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101201091109.GA8984@osiris.boeblingen.de.ibm.com\u003e\nCc: stable@kernel.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f26f9aff6aaf67e9a430d16c266f91b13a5bff64", "tree": "84e39b539b42655dbae6b80acbe14e10772711fe", "parents": [ "0f004f5a696a9434b7214d0d3cbd0525ee77d428" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Wed Dec 08 11:05:42 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 08 20:15:06 2010 +0100" }, "message": "Sched: fix skip_clock_update optimization\n\nidle_balance() drops/retakes rq-\u003elock, leaving the previous task\nvulnerable to set_tsk_need_resched(). Clear it after we return\nfrom balancing instead, and in setup_thread_stack() as well, so\nno successfully descheduled or never scheduled task has it set.\n\nNeed resched confused the skip_clock_update logic, which assumes\nthat the next call to update_rq_clock() will come nearly immediately\nafter being set. Make the optimization robust against the waking\na sleeper before it sucessfully deschedules case by checking that\nthe current task has not been dequeued before setting the flag,\nsince it is that useless clock update we\u0027re trying to save, and\nclear unconditionally in schedule() proper instead of conditionally\nin put_prev_task().\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nReported-by: Bjoern B. Brandenburg \u003cbbb.lst@gmail.com\u003e\nTested-by: Yong Zhang \u003cyong.zhang0@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003c1291802742.1417.9.camel@marge.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0f004f5a696a9434b7214d0d3cbd0525ee77d428", "tree": "274b3bb92469789284d864314d46e902c70e8384", "parents": [ "6313e3c21743cc88bb5bd8aa72948ee1e83937b6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Nov 30 19:48:45 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 08 20:15:04 2010 +0100" }, "message": "sched: Cure more NO_HZ load average woes\n\nThere\u0027s a long-running regression that proved difficult to fix and\nwhich is hitting certain people and is rather annoying in its effects.\n\nDamien reported that after 74f5187ac8 (sched: Cure load average vs\nNO_HZ woes) his load average is unnaturally high, he also noted that\neven with that patch reverted the load avgerage numbers are not\ncorrect.\n\nThe problem is that the previous patch only solved half the NO_HZ\nproblem, it addressed the part of going into NO_HZ mode, not of\ncomming out of NO_HZ mode. This patch implements that missing half.\n\nWhen comming out of NO_HZ mode there are two important things to take\ncare of:\n\n - Folding the pending idle delta into the global active count.\n - Correctly aging the averages for the idle-duration.\n\nSo with this patch the NO_HZ interaction should be complete and\nbehaviour between CONFIG_NO_HZ\u003d[yn] should be equivalent.\n\nFurthermore, this patch slightly changes the load average computation\nby adding a rounding term to the fixed point multiplication.\n\nReported-by: Damien Wyart \u003cdamien.wyart@free.fr\u003e\nReported-by: Tim McGrath \u003ctmhikaru@gmail.com\u003e\nTested-by: Damien Wyart \u003cdamien.wyart@free.fr\u003e\nTested-by: Orion Poplawski \u003corion@cora.nwra.com\u003e\nTested-by: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: stable@kernel.org\nCc: Chase Douglas \u003cchase.douglas@canonical.com\u003e\nLKML-Reference: \u003c1291129145.32004.874.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5167695753c63444a9e6cbbef136200a16c7a225", "tree": "6394b1e620027882556beb2e899449805dd3c3cc", "parents": [ "6313e3c21743cc88bb5bd8aa72948ee1e83937b6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Dec 07 14:18:20 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Dec 08 20:14:08 2010 +0100" }, "message": "perf: Fix duplicate events with multiple-pmu vs software events\n\nBecause the multi-pmu bits can share contexts between struct pmu\ninstances we could get duplicate events by iterating the pmu list.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6313e3c21743cc88bb5bd8aa72948ee1e83937b6", "tree": "0199e3ec8d3ad7799468f51d251b542192099777", "parents": [ "6dde39be39e636c1d41e73590668d5903b11535b", "e7a3481c0246c8e45e79c629efd63b168e91fcda", "18483b81ee7e70ee68d4b18be618be5cfcc0b290", "61ab25447ad6334a74e32f60efb135a3467223f8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 08 06:40:59 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Dec 08 06:40:59 2010 -0800" }, "message": "Merge branches \u0027x86-fixes-for-linus\u0027, \u0027perf-fixes-for-linus\u0027 and \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86/pvclock: Zero last_value on resume\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf record: Fix eternal wait for stillborn child\n perf header: Don\u0027t assume there\u0027s no attr info if no sample ids is provided\n perf symbols: Figure out start address of kernel map from kallsyms\n perf symbols: Fix kallsyms kernel/module map splitting\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n nohz: Fix printk_needs_cpu() return value on offline cpus\n printk: Fix wake_up_klogd() vs cpu hotplug\n" }, { "commit": "81e8d2162566379adcf4b3700f03845c62577145", "tree": "abf52998d7a1b3cabb939abac590c27fa9c39f2a", "parents": [ "ff43fa8b41fe93cc62bb571a1bfeb487a3f79901", "25c9170ed64a6551beefe9315882f754e14486f4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 07 08:14:28 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Dec 07 08:14:28 2010 -0800" }, "message": "Merge branch \u0027irq-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027irq-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n genirq: Fix incorrect proc spurious output\n" }, { "commit": "7787d2c2f440cc7854bed3d039bf4cc59d9e7897", "tree": "d7402ea46b2aa0a4d049e8edc61a302bda4db4d5", "parents": [ "60658f8a293750b59a8a844bf5c387139af9500a", "c9e664f1fdf34aa8cede047b206deaa8f1945af0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Dec 06 15:51:14 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Dec 06 15:51:14 2010 -0800" }, "message": "Merge branch \u0027pm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6\n\n* \u0027pm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:\n PM / Hibernate: Fix memory corruption related to swap\n PM / Hibernate: Use async I/O when reading compressed hibernation image\n" }, { "commit": "c9e664f1fdf34aa8cede047b206deaa8f1945af0", "tree": "6038002f46173ca785936ac2fe54177197f98a08", "parents": [ "9f339caf8454f0c21983111350ede93983db4340" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Fri Dec 03 22:57:45 2010 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Dec 06 23:52:08 2010 +0100" }, "message": "PM / Hibernate: Fix memory corruption related to swap\n\nThere is a problem that swap pages allocated before the creation of\na hibernation image can be released and used for storing the contents\nof different memory pages while the image is being saved. Since the\nkernel stored in the image doesn\u0027t know of that, it causes memory\ncorruption to occur after resume from hibernation, especially on\nsystems with relatively small RAM that need to swap often.\n\nThis issue can be addressed by keeping the GFP_IOFS bits clear\nin gfp_allowed_mask during the entire hibernation, including the\nsaving of the image, until the system is finally turned off or\nthe hibernation is aborted. Unfortunately, for this purpose\nit\u0027s necessary to rework the way in which the hibernate and\nsuspend code manipulates gfp_allowed_mask.\n\nThis change is based on an earlier patch from Hugh Dickins.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nReported-by: Ondrej Zary \u003clinux@rainbow-software.org\u003e\nAcked-by: Hugh Dickins \u003chughd@google.com\u003e\nReviewed-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: stable@kernel.org\n" }, { "commit": "9f339caf8454f0c21983111350ede93983db4340", "tree": "ebe959b206b1edfd4d3976617527d43d3858b00c", "parents": [ "698fd6a2c3ca05ec796072defb5c415289a86cdc" ], "author": { "name": "Bojan Smojver", "email": "bojan@rexursive.com", "time": "Thu Nov 25 23:41:39 2010 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Dec 06 23:38:29 2010 +0100" }, "message": "PM / Hibernate: Use async I/O when reading compressed hibernation image\n\nThis is a fix for reading LZO compressed image using async I/O.\nEssentially, instead of having just one page into which we keep\nreading blocks from swap, we allocate enough of them to cover the\nlargest compressed size and then let block I/O pick them all up. Once\nwe have them all (and here we wait), we decompress them, as usual.\nObviously, the very first block we still pick up synchronously,\nbecause we need to know the size of the lot before we pick up the\nrest.\n\nAlso fixed the copyright line, which I\u0027ve forgotten before.\n\nSigned-off-by: Bojan Smojver \u003cbojan@rexursive.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "33dd94ae1ccbfb7bf0fb6c692bc3d1c4269e6177", "tree": "c00535d8fe9b29be84b02d057e41cd63d7fe3b6b", "parents": [ "a0b0f58cdd32ab363a600a294ddaa90f0c32de8c" ], "author": { "name": "Nelson Elhage", "email": "nelhage@ksplice.com", "time": "Thu Dec 02 14:31:21 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Dec 02 14:51:16 2010 -0800" }, "message": "do_exit(): make sure that we run with get_fs() \u003d\u003d USER_DS\n\nIf a user manages to trigger an oops with fs set to KERNEL_DS, fs is not\notherwise reset before do_exit(). do_exit may later (via mm_release in\nfork.c) do a put_user to a user-controlled address, potentially allowing\na user to leverage an oops into a controlled write into kernel memory.\n\nThis is only triggerable in the presence of another bug, but this\npotentially turns a lot of DoS bugs into privilege escalations, so it\u0027s\nworth fixing. I have proof-of-concept code which uses this bug along\nwith CVE-2010-3849 to write a zero to an arbitrary kernel address, so\nI\u0027ve tested that this is not theoretical.\n\nA more logical place to put this fix might be when we know an oops has\noccurred, before we call do_exit(), but that would involve changing\nevery architecture, in multiple places.\n\nLet\u0027s just stick it in do_exit instead.\n\n[akpm@linux-foundation.org: update code comment]\nSigned-off-by: Nelson Elhage \u003cnelhage@ksplice.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "25c9170ed64a6551beefe9315882f754e14486f4", "tree": "655035a70de19a8d88cbd04264bfaebc1af92a5a", "parents": [ "22a5b566c8c442b0b35b3b106795e2f2b3578096" ], "author": { "name": "Kenji Kaneshige", "email": "kaneshige.kenji@jp.fujitsu.com", "time": "Tue Nov 30 17:36:08 2010 +0900" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 01 08:44:26 2010 +0100" }, "message": "genirq: Fix incorrect proc spurious output\n\nSince commit a1afb637(switch /proc/irq/*/spurious to seq_file) all\n/proc/irq/XX/spurious files show the information of irq 0.\n\nCurrent irq_spurious_proc_open() passes on NULL as the 3rd argument,\nwhich is used as an IRQ number in irq_spurious_proc_show(), to the\nsingle_open(). Because of this, all the /proc/irq/XX/spurious file\nshows IRQ 0 information regardless of the IRQ number.\n\nTo fix the problem, irq_spurious_proc_open() must pass on the\nappropreate data (IRQ number) to single_open().\n\nSigned-off-by: Kenji Kaneshige \u003ckaneshige.kenji@jp.fujitsu.com\u003e\nReviewed-by: Yong Zhang \u003cyong.zhang0@gmail.com\u003e\nLKML-Reference: \u003c4CF4B778.90604@jp.fujitsu.com\u003e\nCc: stable@kernel.org [2.6.33+]\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "364829b1263b44aa60383824e4c1289d83d78ca7", "tree": "daaaf4cecd56ff9f3f9a2eadc69d0cc4f361c607", "parents": [ "60e677373be9c0bf7c9a22937601d5a40e51c042" ], "author": { "name": "Slava Pestov", "email": "slavapestov@google.com", "time": "Wed Nov 24 15:13:16 2010 -0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Nov 30 12:18:17 2010 -0500" }, "message": "tracing: Fix panic when lseek() called on \"trace\" opened for writing\n\nThe file_ops struct for the \"trace\" special file defined llseek as seq_lseek().\nHowever, if the file was opened for writing only, seq_open() was not called,\nand the seek would dereference a null pointer, file-\u003eprivate_data.\n\nThis patch introduces a new wrapper for seq_lseek() which checks if the file\ndescriptor is opened for reading first. If not, it does nothing.\n\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Slava Pestov \u003cslavapestov@google.com\u003e\nLKML-Reference: \u003c1290640396-24179-1-git-send-email-slavapestov@google.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "a9e40a2493d805224f900d839b06188639b7ccd6", "tree": "b33c9477a0728f6299a00a3e817aa26872019576", "parents": [ "75f5d2c9bd36047364d1fb35c0720ab37df3be02", "ee6dcfa40a50fe12a3ae0fb4d2653c66c3ed6556" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 28 12:25:02 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 28 12:25:02 2010 -0800" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf: Fix the software context switch counter\n perf, x86: Fixup Kconfig deps\n x86, perf, nmi: Disable perf if counters are not accessible\n perf: Fix inherit vs. context rotation bug\n" }, { "commit": "03187552762cba3db20d22bc7b0fe2d3642bc15b", "tree": "813ea6cbb302e08e71e2ba9ee7e71fb1ce7db9ce", "parents": [ "fbe6c4047f011d76be83bc2380531cd4fb6aa0e6", "c0deae8c9587419ab13874b74425ce2eb2e18508" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Nov 27 07:29:20 2010 +0900" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Nov 27 07:29:20 2010 +0900" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call\n" }, { "commit": "d2f30c73aba19be828c759edcd21140390cd06e4", "tree": "b9bad75b11e21680f8f9443f0143d62be23cae78", "parents": [ "1b065fdff1c950d96e4c571abe873a9a8aaa6d51", "02a9d03772aa1ff33a26180a2da0bfb191240eda" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Nov 27 07:28:17 2010 +0900" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Nov 27 07:28:17 2010 +0900" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf symbols: Remove incorrect open-coded container_of()\n perf record: Handle restrictive permissions in /proc/{kallsyms,modules}\n x86/kprobes: Prevent kprobes to probe on save_args()\n irq_work: Drop cmpxchg() result\n perf: Fix owner-list vs exit\n x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG\n tracing: Fix recursive user stack trace\n perf,hw_breakpoint: Initialize hardware api earlier\n x86: Ignore trap bits on single step exceptions\n tracing: Force arch_local_irq_* notrace for paravirt\n tracing: Fix module use of trace_bprintk()\n" }, { "commit": "1b065fdff1c950d96e4c571abe873a9a8aaa6d51", "tree": "603d792daf79ae9a0161d97191202bf5d796dc7d", "parents": [ "b76a1e4f2a2f95354f4567c8eb420fd4cb68fc26", "d5ad140bc1505a98c0f040937125bfcbb508078f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Nov 27 07:27:54 2010 +0900" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Nov 27 07:27:54 2010 +0900" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix idle balancing\n sched: Fix volanomark performance regression\n" }, { "commit": "61ab25447ad6334a74e32f60efb135a3467223f8", "tree": "f0cda4931a7ba79609b3b1b4c2e0fda31851e14b", "parents": [ "49f4138346b3cec2706adff02658fe27ceb1e46f" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Fri Nov 26 13:00:59 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:03:12 2010 +0100" }, "message": "nohz: Fix printk_needs_cpu() return value on offline cpus\n\nThis patch fixes a hang observed with 2.6.32 kernels where timers got enqueued\non offline cpus.\n\nprintk_needs_cpu() may return 1 if called on offline cpus. When a cpu gets\nofflined it schedules the idle process which, before killing its own cpu, will\ncall tick_nohz_stop_sched_tick(). That function in turn will call\nprintk_needs_cpu() in order to check if the local tick can be disabled. On\noffline cpus this function should naturally return 0 since regardless if the\ntick gets disabled or not the cpu will be dead short after. That is besides the\nfact that __cpu_disable() should already have made sure that no interrupts on\nthe offlined cpu will be delivered anyway.\n\nIn this case it prevents tick_nohz_stop_sched_tick() to call\nselect_nohz_load_balancer(). No idea if that really is a problem. However what\nmade me debug this is that on 2.6.32 the function get_nohz_load_balancer() is\nused within __mod_timer() to select a cpu on which a timer gets enqueued. If\nprintk_needs_cpu() returns 1 then the nohz_load_balancer cpu doesn\u0027t get\nupdated when a cpu gets offlined. It may contain the cpu number of an offline\ncpu. In turn timers get enqueued on an offline cpu and not very surprisingly\nthey never expire and cause system hangs.\n\nThis has been observed 2.6.32 kernels. On current kernels __mod_timer() uses\nget_nohz_timer_target() which doesn\u0027t have that problem. However there might be\nother problems because of the too early exit tick_nohz_stop_sched_tick() in\ncase a cpu goes offline.\n\nEasiest way to fix this is just to test if the current cpu is offline and call\nprintk_tick() directly which clears the condition.\n\nAlternatively I tried a cpu hotplug notifier which would clear the condition,\nhowever between calling the notifier function and printk_needs_cpu() something\ncould have called printk() again and the problem is back again. This seems to\nbe the safest fix.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003c20101126120235.406766476@de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "49f4138346b3cec2706adff02658fe27ceb1e46f", "tree": "20259bf8196685766e8b4d3ae761102a0f635913", "parents": [ "d5ad140bc1505a98c0f040937125bfcbb508078f" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Fri Nov 26 13:42:47 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:03:11 2010 +0100" }, "message": "printk: Fix wake_up_klogd() vs cpu hotplug\n\nwake_up_klogd() may get called from preemptible context but uses\n__raw_get_cpu_var() to write to a per cpu variable. If it gets preempted\nbetween getting the address and writing to it, the cpu in question could be\noffline if the process gets scheduled back and hence writes to the per cpu data\nof an offline cpu.\n\nThis buggy behaviour was introduced with fa33507a \"printk: robustify\nprintk, fix #2\" which was supposed to fix a \"using smp_processor_id() in\npreemptible\" warning.\n\nLet\u0027s use this_cpu_write() instead which disables preemption and makes sure\nthat the outlined scenario cannot happen.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20101126124247.GC7023@osiris.boeblingen.de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ee6dcfa40a50fe12a3ae0fb4d2653c66c3ed6556", "tree": "e77ac01a6bf2106f7a2c22f00e43cb2960d72ba5", "parents": [ "cc2067a51424dd25c10c1b1230b4222d8baec94d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Nov 26 13:49:04 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:00:59 2010 +0100" }, "message": "perf: Fix the software context switch counter\n\nStephane noticed that because the perf_sw_event() call is inside the\nperf_event_task_sched_out() call it won\u0027t get called unless we\nhave a per-task counter.\n\nReported-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "dddd3379a619a4cb8247bfd3c94ca9ae3797aa2e", "tree": "9b090784b46956d236b51c4addfcd97f575f205e", "parents": [ "02a9d03772aa1ff33a26180a2da0bfb191240eda" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Nov 24 10:05:55 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Nov 26 15:00:56 2010 +0100" }, "message": "perf: Fix inherit vs. context rotation bug\n\nIt was found that sometimes children of tasks with inherited events had\none extra event. Eventually it turned out to be due to the list rotation\nno being exclusive with the list iteration in the inheritance code.\n\nCure this by temporarily disabling the rotation while we inherit the events.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e5cba24e3f018d4beb6acd101a82483c98f91ce7", "tree": "687339b9d285c7d19d5c521cae9a30bd9b389631", "parents": [ "698fd6a2c3ca05ec796072defb5c415289a86cdc" ], "author": { "name": "Hitoshi Mitake", "email": "mitake@dcl.info.waseda.ac.jp", "time": "Fri Nov 26 12:06:44 2010 +0100" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Nov 26 12:06:44 2010 +0100" }, "message": "workqueue: check the allocation of system_unbound_wq\n\nI found a trivial bug on initialization of workqueue.\nCurrent init_workqueues doesn\u0027t check the result of\nallocation of system_unbound_wq, this should be checked\nlike other queues.\n\nSigned-off-by: Hitoshi Mitake \u003cmitake@dcl.info.waseda.ac.jp\u003e\nCc: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "33e0d57f5d2f079104611be9f3fccc27ef2c6b24", "tree": "8903edabbf327e9244f8751eff179f967344c27d", "parents": [ "864ee6cb22fd64c1f4fba8ea3f390ffd8816b563" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 19 11:54:40 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 19 11:54:40 2010 -0800" }, "message": "Revert \"kernel: make /proc/kallsyms mode 400 to reduce ease of attacking\"\n\nThis reverts commit 59365d136d205cc20fe666ca7f89b1c5001b0d5a.\n\nIt turns out that this can break certain existing user land setups.\nQuoth Sarah Sharp:\n\n \"On Wednesday, I updated my branch to commit 460781b from linus\u0027 tree,\n and my box would not boot. klogd segfaulted, which stalled the whole\n system.\n\n At first I thought it actually hung the box, but it continued booting\n after 5 minutes, and I was able to log in. It dropped back to the\n text console instead of the graphical bootup display for that period\n of time. dmesg surprisingly still works. I\u0027ve bisected the problem\n down to this commit (commit 59365d136d205cc20fe666ca7f89b1c5001b0d5a)\n\n The box is running klogd 1.5.5ubuntu3 (from Jaunty). Yes, I know\n that\u0027s old. I read the bit in the commit about changing the\n permissions of kallsyms after boot, but if I can\u0027t boot that doesn\u0027t\n help.\"\n\nSo let\u0027s just keep the old default, and encourage distributions to do\nthe \"chmod -r /proc/kallsyms\" in their bootup scripts. This is not\nworth a kernel option to change default behavior, since it\u0027s so easily\ndone in user space.\n\nReported-and-bisected-by: Sarah Sharp \u003csarah.a.sharp@linux.intel.com\u003e\nCc: Marcus Meissner \u003cmeissner@suse.de\u003e\nCc: Tejun Heo \u003ctj@kernel.org\u003e\nCc: Eugene Teo \u003ceugeneteo@kernel.org\u003e\nCc: Jesper Juhl \u003cjj@chaosbits.net\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2d42dc3feb6649c0e08641b0a6f0e0bad22aeeb2", "tree": "919c0b1a42789de7b4fc0f029b0698426ac98b03", "parents": [ "70b99eff756e8995b607a9d33f242c1e4f480f32", "e3839ed8e89e79202c0402ac46965c0686897890" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 18 08:24:58 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Nov 18 08:24:58 2010 -0800" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:\n kgdb,ppc: Fix regression in evr register handling\n kgdb,x86: fix regression in detach handling\n kdb: fix crash when KDB_BASE_CMD_MAX is exceeded\n kdb: fix memory leak in kdb_main.c\n" }, { "commit": "94e8ba728640dc01375a14e337f3b892bfacbeeb", "tree": "b13b06de29ea71dfafd0505736704491e559440b", "parents": [ "8882135bcd332f294df5455747ea43ba9e6f77ad" ], "author": { "name": "Sergio Aguirre", "email": "saaguirre@ti.com", "time": "Tue Nov 16 12:02:47 2010 -0600" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 13:18:47 2010 +0100" }, "message": "irq_work: Drop cmpxchg() result\n\nThe compiler warned us about:\n\n kernel/irq_work.c: In function \u0027irq_work_run\u0027:\n kernel/irq_work.c:148: warning: value computed is not used\n\nDropping the cmpxchg() result is indeed weird, but correct -\nso annotate away the warning.\n\nSigned-off-by: Sergio Aguirre \u003csaaguirre@ti.com\u003e\nCc: Huang Ying \u003cying.huang@intel.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1289930567-17828-1-git-send-email-saaguirre@ti.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8882135bcd332f294df5455747ea43ba9e6f77ad", "tree": "758f26d26750fd5007e885cc28125f7c1fa24ca6", "parents": [ "fcf48a725a176ba12aa7be64c50190deaa2f86df" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Nov 09 19:01:43 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 13:18:46 2010 +0100" }, "message": "perf: Fix owner-list vs exit\n\nOleg noticed that a perf-fd keeping a reference on the creating task\nleads to a few funny side effects.\n\nThere\u0027s two different aspects to this:\n\n - kernel based perf-events, these should not take out\n a reference on the creating task and appear on the task\u0027s\n event list since they\u0027re not bound to fds nor visible\n to userspace.\n\n - fork() and pthread_create(), these can lead to the creating\n task dying (and thus the task\u0027s event-list becomming useless)\n but keeping the list and ref alive until the event is closed.\n\nCombined they lead to malfunction of the ptrace hw_tracepoints.\n\nCure this by not considering kernel based perf_events for the\nowner-list and destroying the owner-list when the owner dies.\n\nReported-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nLKML-Reference: \u003c1289576883.2084.286.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d5ad140bc1505a98c0f040937125bfcbb508078f", "tree": "adc1581eb61159675f9163515fd2402f81b586e2", "parents": [ "b5482cfa1c95a188b3054fa33274806add91bbe5" ], "author": { "name": "Nikhil Rao", "email": "ncrao@google.com", "time": "Wed Nov 17 11:42:04 2010 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 13:12:33 2010 +0100" }, "message": "sched: Fix idle balancing\n\nAn earlier commit reverts idle balancing throttling reset to fix a 30%\nregression in volanomark throughput. We still need to reset idle_stamp\nwhen we pull a task in newidle balance.\n\nReported-by: Alex Shi \u003calex.shi@intel.com\u003e\nSigned-off-by: Nikhil Rao \u003cncrao@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1290022924-3548-1-git-send-email-ncrao@google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b5482cfa1c95a188b3054fa33274806add91bbe5", "tree": "bcd6091faa23ab203ea9f6f4262a466bf3a696a1", "parents": [ "55f6561c6941713ab5ae9180525b026dd40b7d14" ], "author": { "name": "Alex Shi", "email": "alex.shi@intel.com", "time": "Tue Nov 16 17:34:02 2010 +0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 13:11:43 2010 +0100" }, "message": "sched: Fix volanomark performance regression\n\nCommit fab4762 triggers excessive idle balancing, causing a ~30% loss in\nvolanomark throughput. Remove idle balancing throttle reset.\n\nOriginally-by: Alex Shi \u003calex.shi@intel.com\u003e\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Nikhil Rao \u003cncrao@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1289928732.5169.211.camel@maggy.simson.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "fcf48a725a176ba12aa7be64c50190deaa2f86df", "tree": "5d611ba5b1eb4dd821c93ca2f9d08078b563305a", "parents": [ "0e2af2a9abf94b408ff70679b692a8644fed4aab", "3c502e7a0255d82621ff25d60cc816624830497e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 10:37:51 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 10:37:51 2010 +0100" }, "message": "Merge branch \u0027perf/urgent\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent\n" }, { "commit": "a89d4bd055718d3b4ddb380ee22951a1300b4096", "tree": "ca7a040a619f7c1fb6a42e77be7ff9147417aa2b", "parents": [ "e53beacd23d9cb47590da6a7a7f6d417b941a994", "91e86e560d0b3ce4c5fc64fd2bbb99f856a30a4e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 08:07:36 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 18 08:07:36 2010 +0100" }, "message": "Merge branch \u0027tip/perf/urgent-3\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent\n" }, { "commit": "5450d904054b4ed582793ad6ecb5469f03cc4c46", "tree": "025a63a774f56b02e001cd49ead0c26f428cbb9b", "parents": [ "85e76ab50aecbdc9011806f2f8943450ccb0d93c" ], "author": { "name": "Jovi Zhang", "email": "bookjovi@gmail.com", "time": "Wed Nov 10 07:22:18 2010 -0600" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Wed Nov 17 13:54:57 2010 -0600" }, "message": "kdb: fix crash when KDB_BASE_CMD_MAX is exceeded\n\nWhen the number of dyanmic kdb commands exceeds KDB_BASE_CMD_MAX, the\nkernel will fault.\n\nSigned-off-by: Jovi Zhang \u003cbookjovi@gmail.com\u003e\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "85e76ab50aecbdc9011806f2f8943450ccb0d93c", "tree": "3cf312d0b247a7e2cc40cc5a4bfb35759aa57dda", "parents": [ "e53beacd23d9cb47590da6a7a7f6d417b941a994" ], "author": { "name": "Jovi Zhang", "email": "bookjovi@gmail.com", "time": "Wed Nov 10 07:22:18 2010 -0600" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Wed Nov 17 13:54:57 2010 -0600" }, "message": "kdb: fix memory leak in kdb_main.c\n\nCall kfree in the error path as well as the success path in kdb_ll().\n\nSigned-off-by: Jovi Zhang \u003cbookjovi@gmail.com\u003e\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "451a3c24b0135bce54542009b5fde43846c7cf67", "tree": "f0fbbcc155aef2a1ffcb8aa593fe7a966d0e6900", "parents": [ "55f6561c6941713ab5ae9180525b026dd40b7d14" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Wed Nov 17 16:26:55 2010 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Nov 17 08:59:32 2010 -0800" }, "message": "BKL: remove extraneous #include \u003csmp_lock.h\u003e\n\nThe big kernel lock has been removed from all these files at some point,\nleaving only the #include.\n\nRemove this too as a cleanup.\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "59365d136d205cc20fe666ca7f89b1c5001b0d5a", "tree": "d2496dd73d699de6987599e5c4651ea5ba7a4857", "parents": [ "1d6636502b23a964f4e5aac5237d1bbb76a9f912" ], "author": { "name": "Marcus Meissner", "email": "meissner@suse.de", "time": "Tue Nov 16 11:46:03 2010 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 19:06:01 2010 -0800" }, "message": "kernel: make /proc/kallsyms mode 400 to reduce ease of attacking\n\nMaking /proc/kallsyms readable only for root by default makes it\nslightly harder for attackers to write generic kernel exploits by\nremoving one source of knowledge where things are in the kernel.\n\nThis is the second submit, discussion happened on this on first submit\nand mostly concerned that this is just one hole of the sieve ... but\none of the bigger ones.\n\nChanging the permissions of at least System.map and vmlinux is also\nrequired to fix the same set, but a packaging issue.\n\nTarget of this starter patch and follow ups is removing any kind of\nkernel space address information leak from the kernel.\n\n[ Side note: the default of root-only reading is the \"safe\" value, and\n it\u0027s easy enough to then override at any time after boot. The /proc\n filesystem allows root to change the permissions with a regular\n chmod, so you can \"revert\" this at run-time by simply doing\n\n chmod og+r /proc/kallsyms\n\n as root if you really want regular users to see the kernel symbols.\n It does help some tools like \"perf\" figure them out without any\n setup, so it may well make sense in some situations. - Linus ]\n\nSigned-off-by: Marcus Meissner \u003cmeissner@suse.de\u003e\nAcked-by: Tejun Heo \u003ctj@kernel.org\u003e\nAcked-by: Eugene Teo \u003ceugeneteo@kernel.org\u003e\nReviewed-by: Jesper Juhl \u003cjj@chaosbits.net\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d33fdee4d090076462cfe25473f7139c3204b16e", "tree": "0b7cbabcd57b72baf0e5bbfa2ce97094a518adf0", "parents": [ "1e8703b2e6aefba84dd9633d90a4093ff1200b93", "1e5a74059f9059d330744eac84873b1b99657008" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 15:20:05 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 15:20:05 2010 -0800" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: Fix cross-sched-class wakeup preemption\n sched: Fix runnable condition for stoptask\n sched: Use group weight, idle cpu metrics to fix imbalances during idle\n" }, { "commit": "1e8703b2e6aefba84dd9633d90a4093ff1200b93", "tree": "648c6a9ebd0ecfae1d5ef9c44e9996300b7232cd", "parents": [ "45314915ed8089634144c975357bf5ba17f06ab9", "00fafcda1773245a5292f953321ec3f0668c8c28" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 15:18:17 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 15:18:17 2010 -0800" }, "message": "Merge branch \u0027pm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6\n\n* \u0027pm-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:\n PM / PM QoS: Fix reversed min and max\n PM / OPP: Hide OPP configuration when SoCs do not provide an implementation\n PM: Allow devices to be removed during late suspend and early resume\n" }, { "commit": "45314915ed8089634144c975357bf5ba17f06ab9", "tree": "6b7db771ee69fff267b781faaab388be162df843", "parents": [ "f281233d3eba15fb225d21ae2e228fd4553d824a", "4c115e951d80aff126468adaec7a6c7854f61ab8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 14:31:03 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 14:31:03 2010 -0800" }, "message": "Merge branch \u0027futexes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027futexes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n futex: Address compiler warnings in exit_robust_list\n" }, { "commit": "2ebc8ec86fe0f3f3acf9ba9b41a368f819e7807e", "tree": "c0b3d4f14ae6dd98318d78fcf7d16f47954e06a4", "parents": [ "df6e61d4ca268dc8706db38222fde9f04701566c", "89480801a17a3069f45169d40b828c8e511aa005" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 09:27:13 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 09:27:13 2010 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git390.marist.edu/pub/scm/linux-2.6\n\n* \u0027for-linus\u0027 of git://git390.marist.edu/pub/scm/linux-2.6:\n [S390] kprobes: Fix the return address of multiple kretprobes\n [S390] kprobes: disable interrupts throughout\n [S390] ftrace: build without frame pointers on s390\n [S390] mm: add devmem_is_allowed() for STRICT_DEVMEM checking\n [S390] vmlogrdr: purge after recording is switched off\n [S390] cio: fix incorrect ccw_device_init_count\n [S390] tape: add medium state notifications\n [S390] fix get_user_pages_fast\n" }, { "commit": "df6e61d4ca268dc8706db38222fde9f04701566c", "tree": "64b3e7571df84ce1e8d6aa1fb4dcb6a69a519d2c", "parents": [ "e53beacd23d9cb47590da6a7a7f6d417b941a994" ], "author": { "name": "Joe Perches", "email": "joe@perches.com", "time": "Mon Nov 15 21:17:27 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Nov 16 07:56:09 2010 -0800" }, "message": "kernel/sysctl.c: Fix build failure with !CONFIG_PRINTK\n\nSigh...\n\nSigned-off-by: Joe Perches \u003cjoe@perches.com\u003e\nAcked-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "12b3052c3ee8f508b2c7ee4ddd63ed03423409d8", "tree": "b97d0f209f363cfad94ce9d075312274e349da89", "parents": [ "6800e4c0ea3e96cf78953b8b5743381cb1bb9e37" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Mon Nov 15 18:36:29 2010 -0500" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Nov 15 15:40:01 2010 -0800" }, "message": "capabilities/syslog: open code cap_syslog logic to fix build failure\n\nThe addition of CONFIG_SECURITY_DMESG_RESTRICT resulted in a build\nfailure when CONFIG_PRINTK\u003dn. This is because the capabilities code\nwhich used the new option was built even though the variable in question\ndidn\u0027t exist.\n\nThe patch here fixes this by moving the capabilities checks out of the\nLSM and into the caller. All (known) LSMs should have been calling the\ncapabilities hook already so it actually makes the code organization\nbetter to eliminate the hook altogether.\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nAcked-by: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "00fafcda1773245a5292f953321ec3f0668c8c28", "tree": "97aa6f2399b6d0e8335322865c2179059ebca8ab", "parents": [ "43e60861fe9d39740cf5b355f58fecedf0d8e9ba" ], "author": { "name": "Colin Cross", "email": "ccross@android.com", "time": "Mon Nov 15 22:45:22 2010 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Mon Nov 15 22:45:22 2010 +0100" }, "message": "PM / PM QoS: Fix reversed min and max\n\npm_qos_get_value had min and max reversed, causing all pm_qos\nrequests to have no effect.\n\nSigned-off-by: Colin Cross \u003cccross@android.com\u003e\nAcked-by: mark \u003cmarkgross@thegnar.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: stable@kernel.org\n" }, { "commit": "91e86e560d0b3ce4c5fc64fd2bbb99f856a30a4e", "tree": "26d7afb8373474a4d44d0eba4130499676c35bc7", "parents": [ "b5908548537ccd3ada258ca5348df7ffc93e5a06" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Nov 10 12:56:12 2010 +0100" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Nov 12 21:20:08 2010 -0500" }, "message": "tracing: Fix recursive user stack trace\n\nThe user stack trace can fault when examining the trace. Which\nwould call the do_page_fault handler, which would trace again,\nwhich would do the user stack trace, which would fault and call\ndo_page_fault again ...\n\nThus this is causing a recursive bug. We need to have a recursion\ndetector here.\n\n[ Resubmitted by Jiri Olsa ]\n\n[ Eric Dumazet recommended using __this_cpu_* instead of __get_cpu_* ]\n\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nSigned-off-by: Jiri Olsa \u003cjolsa@redhat.com\u003e\nLKML-Reference: \u003c1289390172-9730-3-git-send-email-jolsa@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "8a9f772c14f85e2a580baadc50c194835da2d4e5", "tree": "4ac04e465fa8295944f997fb517dc9904bb8e4f3", "parents": [ "25a34554d600b799cbf5159bef372b02d3b4e1c6", "cedb4a7d9f6aedb0dce94d6285b69dcb3c10fa05" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 08:52:47 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 08:52:47 2010 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-linus\u0027 of git://git.kernel.dk/linux-2.6-block: (27 commits)\n block: remove unused copy_io_context()\n Documentation: remove anticipatory scheduler info\n block: remove REQ_HARDBARRIER\n ioprio: rcu_read_lock/unlock protect find_task_by_vpid call (V2)\n ioprio: fix RCU locking around task dereference\n block: ioctl: fix information leak to userland\n block: read i_size with i_size_read()\n cciss: fix proc warning on attempt to remove non-existant directory\n bio: take care not overflow page count when mapping/copying user data\n block: limit vec count in bio_kmalloc() and bio_alloc_map_data()\n block: take care not to overflow when calculating total iov length\n block: check for proper length of iov entries in blk_rq_map_user_iov()\n cciss: remove controllers supported by hpsa\n cciss: use usleep_range not msleep for small sleeps\n cciss: limit commands allocated on reset_devices\n cciss: Use kernel provided PCI state save and restore functions\n cciss: fix board status waiting code\n drbd: Removed checks for REQ_HARDBARRIER on incomming BIOs\n drbd: REQ_HARDBARRIER -\u003e REQ_FUA transition for meta data accesses\n drbd: Removed the BIO_RW_BARRIER support form the receiver/epoch code\n ...\n" }, { "commit": "28397babba4d2bb4a529859dd1f4fb9a0beb3e48", "tree": "d8ec5cb703d3d8e2c7d0e66f25c361c90aee3ae2", "parents": [ "99efb9369c54fa98fc354a9ad4bc8c59f3212ff4", "034c6efa4616e5ff6253549e973e7fef12899324" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 08:39:52 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 08:39:52 2010 -0800" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf, amd: Use kmalloc_node(,__GFP_ZERO) for northbridge structure allocation\n perf_events: Fix time tracking in samples\n perf trace: update usage\n perf trace: update Documentation with new perf trace variants\n perf trace: live-mode command-line cleanup\n perf trace record: handle commands correctly\n perf record: make the record options available outside perf record\n perf trace scripting: remove system-wide param from shell scripts\n perf trace scripting: fix some small memory leaks and missing error checks\n perf: Fix usages of profile_cpu in builtin-top.c to use cpu_list\n perf, ui: Eliminate stack-smashing protection compiler complaint\n" }, { "commit": "eaf06b241b091357e72b76863ba16e89610d31bd", "tree": "83bc8667309050b3538630707513574c14c51f37", "parents": [ "203f40a5a030ed4048cd40e3bd9ab5df6c5df589" ], "author": { "name": "Dan Rosenberg", "email": "drosenberg@vsecurity.com", "time": "Thu Nov 11 14:05:18 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 07:55:32 2010 -0800" }, "message": "Restrict unprivileged access to kernel syslog\n\nThe kernel syslog contains debugging information that is often useful\nduring exploitation of other vulnerabilities, such as kernel heap\naddresses. Rather than futilely attempt to sanitize hundreds (or\nthousands) of printk statements and simultaneously cripple useful\ndebugging functionality, it is far simpler to create an option that\nprevents unprivileged users from reading the syslog.\n\nThis patch, loosely based on grsecurity\u0027s GRKERNSEC_DMESG, creates the\ndmesg_restrict sysctl. When set to \"0\", the default, no restrictions are\nenforced. When set to \"1\", only users with CAP_SYS_ADMIN can read the\nkernel syslog via dmesg(8) or other mechanisms.\n\n[akpm@linux-foundation.org: explain the config option in kernel.txt]\nSigned-off-by: Dan Rosenberg \u003cdrosenberg@vsecurity.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Eugene Teo \u003ceugeneteo@kernel.org\u003e\nAcked-by: Kees Cook \u003ckees.cook@canonical.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "38715258aa2e8cd94bd4aafadc544e5104efd551", "tree": "1af8d367a68ddcc8868500aa70da21e1eb7ddf5a", "parents": [ "8d056cb965b8fb7c53c564abf28b1962d1061cd3" ], "author": { "name": "Ken Chen", "email": "kenchen@google.com", "time": "Thu Nov 11 14:05:16 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 07:55:31 2010 -0800" }, "message": "latencytop: fix per task accumulator\n\nPer task latencytop accumulator prematurely terminates due to erroneous\nplacement of latency_record_count. It should be incremented whenever a\nnew record is allocated instead of increment on every latencytop event.\n\nAlso fix search iterator to only search known record events instead of\nblindly searching all pre-allocated space.\n\nSigned-off-by: Ken Chen \u003ckenchen@google.com\u003e\nReviewed-by: Arjan van de Ven \u003carjan@infradead.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": "834b40380e93e36f1c9b48ec1d280cebe3d7bd8c", "tree": "acb6c23488baaf50e1cabd218738281973616734", "parents": [ "aec04288904a7308f2900926902040e7a69ae2be" ], "author": { "name": "Alexey Khoroshilov", "email": "khoroshilov@ispras.ru", "time": "Thu Nov 11 14:05:14 2010 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 12 07:55:31 2010 -0800" }, "message": "kernel/range.c: fix clean_sort_range() for the case of full array\n\nclean_sort_range() should return a number of nonempty elements of range\narray, but if the array is full clean_sort_range() returns 0.\n\nThe problem is that the number of nonempty elements is evaluated by\nfinding the first empty element of the array. If there is no such element\nit returns an initial value of local variable nr_range that is zero.\n\nThe fix is trivial: it changes initial value of nr_range to size of the\narray.\n\nThe bug can lead to loss of information regarding all ranges, since\ntypically returned value of clean_sort_range() is considered as an actual\nnumber of ranges in the array after a series of add/subtract operations.\n\nFound by Analytical Verification project of Linux Verification Center\n(linuxtesting.org), thanks to Alexander Kolosov.\n\nSigned-off-by: Alexey Khoroshilov \u003ckhoroshilov@ispras.ru\u003e\nCc: Yinghai Lu \u003cyinghai@kernel.org\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3c502e7a0255d82621ff25d60cc816624830497e", "tree": "1f30638f22ef9ed748fac1f73cb18169efe49ae7", "parents": [ "6c0aca288e726405b01dacb12cac556454d34b2a" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Thu Nov 04 17:33:01 2010 -0500" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Nov 12 14:51:55 2010 +0100" }, "message": "perf,hw_breakpoint: Initialize hardware api earlier\n\nWhen using early debugging, the kernel does not initialize the\nhw_breakpoint API early enough and causes the late initialization of\nthe kernel debugger to fail. The boot arguments are:\n\n earlyprintk\u003dvga ekgdboc\u003dkbd kgdbwait\n\nThen simply type \"go\" at the kdb prompt and boot. The kernel will\nlater emit the message:\n\n kgdb: Could not allocate hwbreakpoints\n\nAnd at that point the kernel debugger will cease to work correctly.\n\nThe solution is to initialize the hw_breakpoint at the same time that\nall the other perf call backs are initialized instead of using a\ncore_initcall() initialization which happens well after the kernel\ndebugger can make use of hardware breakpoints.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\nCC: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCC: Ingo Molnar \u003cmingo@elte.hu\u003e\nCC: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4CD3396D.1090308@windriver.com\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "1e5a74059f9059d330744eac84873b1b99657008", "tree": "f32f8ac76d5a6c49c1b4cd8f83155af00007fac0", "parents": [ "2d46709082c062cae7cce1a15f8cd4cd81b92d88" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Sun Oct 31 12:37:04 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Nov 11 14:37:23 2010 +0100" }, "message": "sched: Fix cross-sched-class wakeup preemption\n\nInstead of dealing with sched classes inside each check_preempt_curr()\nimplementation, pull out this logic into the generic wakeup preemption\npath.\n\nThis fixes a hang in KVM (and others) where we are waiting for the\nstop machine thread to run ...\n\nReported-by: Markus Trippelsdorf \u003cmarkus@trippelsdorf.de\u003e\nTested-by: Marcelo Tosatti \u003cmtosatti@redhat.com\u003e\nTested-by: Sergey Senozhatsky \u003csergey.senozhatsky@gmail.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1288891946.2039.31.camel@laptop\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "13b9b6e746d753d43270a78dd39694912646b5d9", "tree": "e7c4f657a21f7a94daa12b3880f1383ce27b58cf", "parents": [ "034c6efa4616e5ff6253549e973e7fef12899324" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Nov 10 22:19:24 2010 -0500" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Nov 10 22:19:24 2010 -0500" }, "message": "tracing: Fix module use of trace_bprintk()\n\nOn use of trace_printk() there\u0027s a macro that determines if the format\nis static or a variable. If it is static, it defaults to __trace_bprintk()\notherwise it uses __trace_printk().\n\nA while ago, Lai Jiangshan added __trace_bprintk(). In that patch, we\ndiscussed a way to allow modules to use it. The difference between\n__trace_bprintk() and __trace_printk() is that for faster processing,\njust the format and args are stored in the trace instead of running\nit through a sprintf function. In order to do this, the format used\nby the __trace_bprintk() had to be persistent.\n\nSee commit 1ba28e02a18cbdbea123836f6c98efb09cbf59ec\n\nThe problem comes with trace_bprintk() where the module is unloaded.\nThe pointer left in the buffer is still pointing to the format.\n\nTo solve this issue, the formats in the module were copied into kernel\ncore. If the same format was used, they would use the same copy (to prevent\nmemory leak). This all worked well until we tried to merge everything.\n\nAt the time this was written, Lai Jiangshan, Frederic Weisbecker,\nIngo Molnar and myself were all touching the same code. When this was\nmerged, we lost the part of it that was in module.c. This kept out the\ncopying of the formats and unloading the module could cause bad pointers\nleft in the ring buffer.\n\nThis patch adds back (with updates required for current kernel) the\nmodule code that sets up the necessary pointers.\n\nCc: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "43e60861fe9d39740cf5b355f58fecedf0d8e9ba", "tree": "7751208ba2b579d22e70bd5043c6b4c63847feb5", "parents": [ "d08a5ace18dce9b18d8eb56bb6c0feef082b1b33" ], "author": { "name": "Mark Brown", "email": "broonie@opensource.wolfsonmicro.com", "time": "Thu Nov 11 01:51:26 2010 +0100" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Nov 11 01:51:26 2010 +0100" }, "message": "PM / OPP: Hide OPP configuration when SoCs do not provide an implementation\n\nSince the OPP API is only useful with an appropraite SoC-specific\nimplementation there is no point in offering the ability to enable\nthe API on general systems. Provide an ARCH_HAS OPP Kconfig symbol\nwhich masks out the option unless selected by an implementation.\n\nSigned-off-by: Mark Brown \u003cbroonie@opensource.wolfsonmicro.com\u003e\nAcked-by: Nishanth Menon \u003cnm@ti.com\u003e\nAcked-by: Kevin Hilman \u003ckhilman@deeprootsystems.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "2d46709082c062cae7cce1a15f8cd4cd81b92d88", "tree": "8222a0f18aca8a91c7929264d83bf6010a905993", "parents": [ "aae6d3ddd8b90f5b2c8d79a2b914d1706d124193" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Tue Nov 09 14:36:52 2010 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 10 23:13:58 2010 +0100" }, "message": "sched: Fix runnable condition for stoptask\n\nHeiko reported that the TASK_RUNNING check is not sufficient for\nCONFIG_PREEMPT\u003dy since we can get preempted with !TASK_RUNNING.\n\nHe suggested adding a -\u003ese.on_rq test to the existing TASK_RUNNING\none, however TASK_RUNNING will always have -\u003ese.on_rq, so we might as\nwell reduce that to a single test.\n\n[ stop tasks should never get preempted, but its good to handle\n this case correctly should this ever happen ]\n\nReported-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "aae6d3ddd8b90f5b2c8d79a2b914d1706d124193", "tree": "b993f929f4b1cc38ef01094ff4504eaf358adb31", "parents": [ "f6614b7bb405a9b35dd28baea989a749492c46b2" ], "author": { "name": "Suresh Siddha", "email": "suresh.b.siddha@intel.com", "time": "Fri Sep 17 15:02:32 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 10 23:13:56 2010 +0100" }, "message": "sched: Use group weight, idle cpu metrics to fix imbalances during idle\n\nCurrently we consider a sched domain to be well balanced when the imbalance\nis less than the domain\u0027s imablance_pct. As the number of cores and threads\nare increasing, current values of imbalance_pct (for example 25% for a\nNUMA domain) are not enough to detect imbalances like:\n\na) On a WSM-EP system (two sockets, each having 6 cores and 12 logical threads),\n24 cpu-hogging tasks get scheduled as 13 on one socket and 11 on another\nsocket. Leading to an idle HT cpu.\n\nb) On a hypothetial 2 socket NHM-EX system (each socket having 8 cores and\n16 logical threads), 16 cpu-hogging tasks can get scheduled as 9 on one\nsocket and 7 on another socket. Leaving one core in a socket idle\nwhereas in another socket we have a core having both its HT siblings busy.\n\nWhile this issue can be fixed by decreasing the domain\u0027s imbalance_pct\n(by making it a function of number of logical cpus in the domain), it\ncan potentially cause more task migrations across sched groups in an\noverloaded case.\n\nFix this by using imbalance_pct only during newly_idle and busy\nload balancing. And during idle load balancing, check if there\nis an imbalance in number of idle cpu\u0027s across the busiest and this\nsched_group or if the busiest group has more tasks than its weight that\nthe idle cpu in this_group can pull.\n\nReported-by: Nikhil Rao \u003cncrao@google.com\u003e\nSigned-off-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1284760952.2676.11.camel@sbsiddha-MOBL3.sc.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "eed01528a45dc4138e9a08064b4b6cc1a9426899", "tree": "c7b4256b4158abc74338f14ac2071ec33c52d7e6", "parents": [ "7e55055e5bb00085051ca59c570c83a820e1e0ee" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Tue Oct 26 16:08:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Nov 10 22:58:39 2010 +0100" }, "message": "perf_events: Fix time tracking in samples\n\nThis patch corrects time tracking in samples. Without this patch\nboth time_enabled and time_running are bogus when user asks for\nPERF_SAMPLE_READ.\n\nOne uses PERF_SAMPLE_READ to sample the values of other counters\nin each sample. Because of multiplexing, it is necessary to know\nboth time_enabled, time_running to be able to scale counts correctly.\n\nIn this second version of the patch, we maintain a shadow\ncopy of ctx-\u003etime which allows us to compute ctx-\u003etime without\ncalling update_context_time() from NMI context. We avoid the\nissue that update_context_time() must always be called with\nctx-\u003elock held.\n\nWe do not keep shadow copies of the other event timings\nbecause if the lead event is overflowing then it is active\nand thus it\u0027s been scheduled in via event_sched_in() in\nwhich case neither tstamp_stopped, tstamp_running can be modified.\n\nThis timing logic only applies to samples when PERF_SAMPLE_READ\nis used.\n\nNote that this patch does not address timing issues related\nto sampling inheritance between tasks. This will be addressed\nin a future patch.\n\nWith this patch, the libpfm4 example task_smpl now reports\ncorrect counts (shown on 2.4GHz Core 2):\n\n$ task_smpl -p 2400000000 -e unhalted_core_cycles:u,instructions_retired:u,baclears noploop 5\nnoploop for 5 seconds\nIIP:0x000000004006d6 PID:5596 TID:5596 TIME:466,210,211,430 STREAM_ID:33 PERIOD:2,400,000,000 ENA\u003d1,010,157,814 RUN\u003d1,010,157,814 NR\u003d3\n\t2,400,000,254 unhalted_core_cycles:u (33)\n\t2,399,273,744 instructions_retired:u (34)\n\t53,340 baclears (35)\n\nSigned-off-by: Stephane Eranian \u003ceranian@google.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4cc6e14b.1e07e30a.256e.5190@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "02e031cbc843b010e72fcc05c76113c688b2860f", "tree": "9f68559ec3acc39bcc4ce2ff87043a094eaa2e8f", "parents": [ "00e375e7e962f938f6b3c93e4cd097a5e26cc788" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Wed Nov 10 14:54:09 2010 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Wed Nov 10 14:54:09 2010 +0100" }, "message": "block: remove REQ_HARDBARRIER\n\nREQ_HARDBARRIER is dead now, so remove the leftovers. What\u0027s left\nat this point is:\n\n - various checks inside the block layer.\n - sanity checks in bio based drivers.\n - now unused bio_empty_barrier helper.\n - Xen blockfront use of BLKIF_OP_WRITE_BARRIER - it\u0027s dead for a while,\n but Xen really needs to sort out it\u0027s barrier situaton.\n - setting of ordered tags in uas - dead code copied from old scsi\n drivers.\n - scsi different retry for barriers - it\u0027s dead and should have been\n removed when flushes were converted to FS requests.\n - blktrace handling of barriers - removed. Someone who knows blktrace\n better should add support for REQ_FLUSH and REQ_FUA, though.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "4c115e951d80aff126468adaec7a6c7854f61ab8", "tree": "9f808df3fe056c317d37b53d3640982c9bc593cc", "parents": [ "814ce2521121c2459e16cea8c7221e157edbeddd" ], "author": { "name": "Darren Hart", "email": "dvhart@linux.intel.com", "time": "Thu Nov 04 15:00:00 2010 -0400" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Nov 10 13:27:50 2010 +0100" }, "message": "futex: Address compiler warnings in exit_robust_list\n\nSince commit 1dcc41bb (futex: Change 3rd arg of fetch_robust_entry()\nto unsigned int*) some gcc versions decided to emit the following\nwarning:\n\nkernel/futex.c: In function ‘exit_robust_list’:\nkernel/futex.c:2492: warning: ‘next_pi’ may be used uninitialized in this function\n\nThe commit did not introduce the warning as gcc should have warned\nbefore that commit as well. It\u0027s just gcc being silly.\n\nThe code path really can\u0027t result in next_pi being unitialized (or\nshould not), but let\u0027s keep the build clean. Annotate next_pi as an\nuninitialized_var.\n\n[ tglx: Addressed the same issue in futex_compat.c and massaged the\n \tchangelog ]\n\nSigned-off-by: Darren Hart \u003cdvhart@linux.intel.com\u003e\nTested-by: Matt Fleming \u003cmatt@console-pimps.org\u003e\nTested-by: Uwe Kleine-König \u003cu.kleine-koenig@pengutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: John Kacur \u003cjkacur@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nLKML-Reference: \u003c1288897200-13008-1-git-send-email-dvhart@linux.intel.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "c0deae8c9587419ab13874b74425ce2eb2e18508", "tree": "54887135a674951d19e169b5ff17a866b16d7cbe", "parents": [ "814ce2521121c2459e16cea8c7221e157edbeddd" ], "author": { "name": "Sergey Senozhatsky", "email": "sergey.senozhatsky@gmail.com", "time": "Wed Nov 03 18:52:56 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Nov 10 13:07:06 2010 +0100" }, "message": "posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call\n\nCommit 4221a9918e38b7494cee341dda7b7b4bb8c04bde \"Add RCU check for\nfind_task_by_vpid()\" introduced rcu_lockdep_assert to find_task_by_pid_ns.\nAdd rcu_read_lock/rcu_read_unlock to call find_task_by_vpid.\n\nTetsuo Handa wrote:\n| Quoting from one of posts in that thead\n| http://kerneltrap.org/mailarchive/linux-kernel/2010/2/8/4536388\n|\n|| Usually tasklist gives enough protection, but if copy_process() fails\n|| it calls free_pid() lockless and does call_rcu(delayed_put_pid().\n|| This means, without rcu lock find_pid_ns() can\u0027t scan the hash table\n|| safely.\n\nThomas Gleixner wrote:\n| We can remove the tasklist_lock while at it. rcu_read_lock is enough.\n\nPatch also replaces thread_group_leader with has_group_leader_pid\nin accordance to comment by Oleg Nesterov:\n\n| ... thread_group_leader() check is not relaible without \n| tasklist. If we race with de_thread() find_task_by_vpid() can find\n| the new leader before it updates its -\u003egroup_leader.\n|\n| perhaps it makes sense to change posix_cpu_timer_create() to use \n| has_group_leader_pid() instead, just to make this code not look racy\n| and avoid adding new problems.\n\n\nSigned-off-by: Sergey Senozhatsky \u003csergey.senozhatsky@gmail.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nReviewed-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nLKML-Reference: \u003c20101103165256.GD30053@swordfish.minsk.epam.com\u003e\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n\n" }, { "commit": "becf91f18750cf1c60828aa2ee63a36b05c2e4d0", "tree": "3b97a843ef2aaad89250ec8b8897474ad0169c44", "parents": [ "ec6743bb06510c7b629603ce35713d6ae9273579" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Nov 10 10:05:56 2010 +0100" }, "committer": { "name": "Martin Schwidefsky", "email": "sky@mschwide.boeblingen.de.ibm.com", "time": "Wed Nov 10 10:05:54 2010 +0100" }, "message": "[S390] ftrace: build without frame pointers on s390\n\ns390 doesn\u0027t need FRAME_POINTERS in order to have a working function tracer.\nWe don\u0027t need frame pointers in order to get strack traces since we always\nhave valid backchains by using the -mkernel-backchain gcc option.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\n" }, { "commit": "433039e97f672b81e6c8f6daef385dcf035c6e29", "tree": "0b4b181cf1db4019ae34dccc49e06945e4df117b", "parents": [ "4b4a2700f462102569b407102c60d3b9cf4432a0" ], "author": { "name": "David Daney", "email": "ddaney@caviumnetworks.com", "time": "Fri Nov 05 16:17:39 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 05 17:45:35 2010 -0700" }, "message": "watchdog: Fix section mismatch and potential undefined behavior.\n\nCommit d9ca07a05ce1 (\"watchdog: Avoid kernel crash when disabling\nwatchdog\") introduces a section mismatch.\n\nNow that we reference no_watchdog from non-__init code it can no longer\nbe __initdata.\n\nSigned-off-by: David Daney \u003cddaney@caviumnetworks.com\u003e\nCc: Stephane Eranian \u003ceranian@google.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e0a70217107e6f9844628120412cb27bb4cea194", "tree": "3c805ee6cfe97afee77b226e0cf5d36135e82dda", "parents": [ "b312e131cb88b83b6edc7a017b0249b4ea176edc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Fri Nov 05 16:53:42 2010 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 05 14:16:03 2010 -0700" }, "message": "posix-cpu-timers: workaround to suppress the problems with mt exec\n\nposix-cpu-timers.c correctly assumes that the dying process does\nposix_cpu_timers_exit_group() and removes all !CPUCLOCK_PERTHREAD\ntimers from signal-\u003ecpu_timers list.\n\nBut, it also assumes that timer-\u003eit.cpu.task is always the group\nleader, and thus the dead -\u003etask means the dead thread group.\n\nThis is obviously not true after de_thread() changes the leader.\nAfter that almost every posix_cpu_timer_ method has problems.\n\nIt is not simple to fix this bug correctly. First of all, I think\nthat timer-\u003eit.cpu should use struct pid instead of task_struct.\nAlso, the locking should be reworked completely. In particular,\ntasklist_lock should not be used at all. This all needs a lot of\nnontrivial and hard-to-test changes.\n\nChange __exit_signal() to do posix_cpu_timers_exit_group() when\nthe old leader dies during exec. This is not the fix, just the\ntemporary hack to hide the problem for 2.6.37 and stable. IOW,\nthis is obviously wrong but this is what we currently have anyway:\ncpu timers do not work after mt exec.\n\nIn theory this change adds another race. The exiting leader can\ndetach the timers which were attached to the new leader. However,\nthe window between de_thread() and release_task() is small, we\ncan pretend that sys_timer_create() was called before de_thread().\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "408af87a397a8ddef56ad39a79481f592aa1ac1a", "tree": "b1e2aeafa2ade41e7b64a0025fa050f3be83d5c7", "parents": [ "9a8a0caddec7f77174a33e53f5ee9e87181b6232" ], "author": { "name": "Jesper Juhl", "email": "jj@chaosbits.net", "time": "Thu Nov 04 21:44:41 2010 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 05 08:21:34 2010 -0700" }, "message": "Clean up relay_alloc_page_array() slightly by using vzalloc rather than vmalloc and memset\n\nWe can optimize kernel/relay.c::relay_alloc_page_array() slightly by\nusing vzalloc. The patch makes these changes:\n\n - use vzalloc instead of vmalloc+memset.\n - remove redundant local variable \u0027array\u0027.\n - declare local \u0027pa_size\u0027 as const.\n\nCuts down nicely on both source and object-code size.\n\nSigned-off-by: Jesper Juhl \u003cjj@chaosbits.net\u003e\nAcked-by: Pekka Enberg \u003cpenberg@kernel.org\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "82279e6bd7643da1b3fbda42555c3238c7b00d38", "tree": "e3f846e0a7daf6966375809ff4317f9eb57a9af9", "parents": [ "bb8430a2c8fe2b726033017daadf73c69b0348ea", "4600d7c493f354a3e338a35bcf8a3bfbe815776a", "4882720b267b7b1d1b0ce08334b205f0329d4615" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Oct 31 20:40:24 2010 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Oct 31 20:40:24 2010 -0400" }, "message": "Merge branches \u0027irq-core-for-linus\u0027 and \u0027core-locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027irq-core-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n genirq: Fix up irq_node() for irq_data changes.\n genirq: Add single IRQ reservation helper\n genirq: Warn if enable_irq is called before irq is set up\n\n* \u0027core-locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n semaphore: Remove mutex emulation\n staging: Final semaphore cleanup\n jbd2: Convert jbd2_slab_create_sem to mutex\n hpfs: Convert sbi-\u003ehpfs_creation_de to mutex\n\nFix up trivial change/delete conflicts with deleted \u0027dream\u0027 drivers\n(drivers/staging/dream/camera/{mt9d112.c,mt9p012_fox.c,mt9t013.c,s5k3e2fx.c})\n" }, { "commit": "f02a38d86a14b6e544e218d806ffb0442785f62b", "tree": "84aace4aaf4b018c48f25ec2831888354baae16c", "parents": [ "925d169f5b86fe57e2f5264ea574cce9a89b719d", "169ed55bd30305b933f52bfab32a58671d44ab68", "7b79462a20826a7269322113c68ca78d5f67c0bd" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Oct 30 11:43:26 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Oct 30 11:43:26 2010 -0700" }, "message": "Merge branches \u0027perf-fixes-for-linus\u0027 and \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n jump label: Add work around to i386 gcc asm goto bug\n x86, ftrace: Use safe noops, drop trap test\n jump_label: Fix unaligned traps on sparc.\n jump label: Make arch_jump_label_text_poke_early() optional\n jump label: Fix error with preempt disable holding mutex\n oprofile: Remove deprecated use of flush_scheduled_work()\n oprofile: Fix the hang while taking the cpu offline\n jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex\n jump label: Fix module __init section race\n\n* \u0027x86-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n x86: Check irq_remapped instead of remapping_enabled in destroy_irq()\n" }, { "commit": "120a795da07c9a02221ca23464c28a7c6ad7de1d", "tree": "14e0f5ab35e9397f4a1b2f5e24b8394a601aa409", "parents": [ "af2951325bd6c26cb2c91943c7b11aed53504056" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 02:54:44 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 08:45:43 2010 -0400" }, "message": "audit mmap\n\nNormal syscall audit doesn\u0027t catch 5th argument of syscall. It also\ndoesn\u0027t catch the contents of userland structures pointed to be\nsyscall argument, so for both old and new mmap(2) ABI it doesn\u0027t\nrecord the descriptor we are mapping. For old one it also misses\nflags.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "ab263f47c9781a644de8b28013434b645082922e", "tree": "bae72a448f5d5f37fb5c762a4c336fe731523dfd", "parents": [ "207032051a5ed38df332729ba42e98e9a1e60434" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 14:19:41 2009 +0000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 08:45:42 2010 -0400" }, "message": "audit: Use rcu for task lookup protection\n\nProtect the task lookups in audit_receive_msg() with rcu_read_lock()\ninstead of tasklist_lock and use lock/unlock_sighand to protect\nagainst the exit race.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Eric Paris \u003ceparis@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "207032051a5ed38df332729ba42e98e9a1e60434", "tree": "632311aa731ce8cda33888b54816837f2d1529bd", "parents": [ "3c80fe4ac9cfb13b1bfa4edf1544e8b656716694" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 14:19:35 2009 +0000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 08:45:42 2010 -0400" }, "message": "audit: Do not send uninitialized data for AUDIT_TTY_GET\n\naudit_receive_msg() sends uninitialized data for AUDIT_TTY_GET when\nthe task was not found.\n\nSend reply only when task was found.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "3c80fe4ac9cfb13b1bfa4edf1544e8b656716694", "tree": "c605435b642323cd76eea9567a43d8c67b9c9db1", "parents": [ "f7a998a9491f2da1d3e44d150aa611d10093da4f" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Dec 09 14:19:31 2009 +0000" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 08:45:25 2010 -0400" }, "message": "audit: Call tty_audit_push_task() outside preempt disabled\n\nWhile auditing all tasklist_lock read_lock sites I stumbled over the\nfollowing call chain:\n\naudit_prepare_user_tty()\n read_lock(\u0026tasklist_lock);\n tty_audit_push_task();\n mutex_lock(\u0026buf-\u003emutex);\n\n --\u003e buf-\u003emutex is locked with preemption disabled.\n\nSolve this by acquiring a reference to the task struct under\nrcu_read_lock and call tty_audit_push_task outside of the preempt\ndisabled region.\n\nMove all code which needs to be protected by sighand lock into\ntty_audit_push_task() and use lock/unlock_sighand as we do not hold\ntasklist_lock.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Eric Paris \u003ceparis@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "f7a998a9491f2da1d3e44d150aa611d10093da4f", "tree": "5d7c32eff458aeab7bcfeafd2d27e377b1f2b970", "parents": [ "b8800aa5d9c7e4e2869321c77b80f322a0d9663a" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 02:18:32 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 02:18:32 2010 -0400" }, "message": "in untag_chunk() we need to do alloc_chunk() a bit earlier\n\n... while we are not holding spinlocks.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "b8800aa5d9c7e4e2869321c77b80f322a0d9663a", "tree": "27bda6447f0b2ab2eec7beafcef090da489222fa", "parents": [ "d29be158a68254f58cf1fbf60ce1e89557a321aa" ], "author": { "name": "Stephen Hemminger", "email": "shemminger@vyatta.com", "time": "Wed Oct 20 17:23:50 2010 -0700" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 01:42:19 2010 -0400" }, "message": "audit: make functions static\n\nI was doing some namespace checks and found some simple stuff in\naudit that could be cleaned up. Make some functions static, and\nput const on make_reply payload arg.\n\nSigned-off-by: Stephen Hemminger \u003cshemminger@vyatta.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "d29be158a68254f58cf1fbf60ce1e89557a321aa", "tree": "cd42581516bc189c2e1d83b15fad984c7001561c", "parents": [ "2d10d8737ccdba752d60106abbc6ed4f37404923" ], "author": { "name": "Miloslav Trmac", "email": "mitr@redhat.com", "time": "Thu Sep 16 18:14:11 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 30 01:41:57 2010 -0400" }, "message": "Audit: add support to match lsm labels on user audit messages\n\nAdd support for matching by security label (e.g. SELinux context) of\nthe sender of an user-space audit record.\n\nThe audit filter code already allows user space to configure such\nfilters, but they were ignored during evaluation. This patch implements\nevaluation of these filters.\n\nFor example, after application of this patch, PAM authentication logs\ncaused by cron can be disabled using\n\tauditctl -a user,never -F subj_type\u003dcrond_t\n\nSigned-off-by: Miloslav Trmac \u003cmitr@redhat.com\u003e\nAcked-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "1e431a9d6478940c0b5fcfa1c17a336fc0683409", "tree": "ce6b454ecbad4f535b9a18ef8605f8218a409ee6", "parents": [ "75d73126fd490e26a9bdfc2338ca068e71563e0b", "ff10b88b5a05c8f1646dd15fb9f6093c1384ff6d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 29 11:49:38 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 29 11:49:38 2010 -0700" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:\n kgdb,ppc: Individual register get/set for ppc\n kgdbts: prevent re-entry to kgdbts before it unregisters\n debug_core,x86,blackfin: Clean up hw debug disable API\n kdb: Fix early debugging crash regression\n kgdb,arm: fix register dump\n kdb: fix per_cpu command to remove supress mask\n kdb: Add kdb kernel module sample\n" }, { "commit": "d7ba979d45272385ce0fdf141d922e61ff48e07b", "tree": "713ffb5f2e079c6abdeb15cd4830a014df12db9b", "parents": [ "578bd4dfcda63d2ef15f025f1d5d55c0e56b9660" ], "author": { "name": "Dongdong Deng", "email": "dongdong.deng@windriver.com", "time": "Wed Aug 18 06:02:00 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Oct 29 13:14:41 2010 -0500" }, "message": "debug_core,x86,blackfin: Clean up hw debug disable API\n\nThe kgdb_disable_hw_debug() was an architecture specific function for\ndisabling all hardware breakpoints on a per cpu basis when entering\nthe debug core.\n\nThis patch will remove the weak function kdbg_disable_hw_debug() and\nchange it into a call back which lives with the rest of hw breakpoint\ncall backs in struct kgdb_arch.\n\nSigned-off-by: Dongdong Deng \u003cdongdong.deng@windriver.com\u003e\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "578bd4dfcda63d2ef15f025f1d5d55c0e56b9660", "tree": "1c8e62b55dff82b64a0e4148134074cf4d8ffdae", "parents": [ "834b2964b7ab047610da038e42d61dc8dac6339a" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Oct 29 13:14:41 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Oct 29 13:14:41 2010 -0500" }, "message": "kdb: Fix early debugging crash regression\n\nThe kdb_current legally be equal to NULL in the early boot of the x86\narch. The problem pcan be observed by booting with the kernel arguments:\n\n earlyprintk\u003dvga ekgdboc\u003dkbd kgdbwait\n\nThe kdb shell will oops on entry and recursively fault because it\ncannot get past the final stage of shell initialization.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "931ea24819f2bd40cca2dc214558bfcc3c91549e", "tree": "1ae4c97345544e206879160abe69f406bc61a351", "parents": [ "4aad8f51d0672f1c95e2cf0e1bc7b9ab42d8e1ea" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Oct 29 08:04:16 2010 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Oct 29 13:14:40 2010 -0500" }, "message": "kdb: fix per_cpu command to remove supress mask\n\nRusty pointed out that the per_cpu command uses up lots of space on\nthe stack and the cpu supress mask is probably not needed.\n\nThis patch removes the need for the supress mask as well as fixing up\nthe following problems with the kdb per_cpu command:\n * The per_cpu command should allow an address as an argument\n * When you have more data than can be displayed on one screen allow\n the user to break out of the print loop.\n\nReported-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "95bcd683fb694a3e2d0538bf486430a0dfbb4111", "tree": "c170ccfd23480b971065c3e700f64d590050fc87", "parents": [ "de31c3ca8179d7c21def7ecb56e4fec0c8659d36" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Fri Oct 29 11:02:43 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Oct 29 12:56:13 2010 -0400" }, "message": "jump label: Make arch_jump_label_text_poke_early() optional\n\nSome archs do not need to do anything special for jump labels on\nstartup (like MIPS). This patch adds a weak function stub for\narch_jump_label_text_poke_early();\n\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: David Daney \u003cddaney@caviumnetworks.com\u003e\nSuggested-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nLKML-Reference: \u003c1286218615-24011-2-git-send-email-ddaney@caviumnetworks.com\u003e\nLKML-Reference: \u003c20101015201037.703989993@goodmis.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "de31c3ca8179d7c21def7ecb56e4fec0c8659d36", "tree": "63a488e1e3778c328074aaa47cb062b910d9c902", "parents": [ "91bad2f8d3057482b9afb599f14421b007136960" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Mon Oct 18 10:38:58 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Fri Oct 29 12:55:55 2010 -0400" }, "message": "jump label: Fix error with preempt disable holding mutex\n\nKprobes and jump label were having a race between mutexes that\nwas fixed by reordering the jump label. But this reordering\nmoved the jump label mutex into a preempt disable location.\n\nThis patch does a little fiddling to move the grabbing of\nthe jump label mutex from inside the preempt disable section\nand still keep the order correct between the mutex and the\nkprobes lock.\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nCc: Jason Baron \u003cjbaron@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "53113b06e48c6c38f7612c1f8043b8a0d2adf72b", "tree": "b50f098b72b6389fde956d8272c08169ff2b53cc", "parents": [ "37542b6a7e73e81f8c066a48e6911e476ee3b22f", "a4cdbd8bfb87ceff455aae85727077889b75001b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 29 08:06:25 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 29 08:06:25 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (29 commits)\n braino in internal.h\n convert simple cases of nfs-related -\u003eget_sb() to -\u003emount()\n convert btrfs\n convert ceph\n convert gfs2\n convert afs\n convert ecryptfs\n convert sysfs\n convert cgroup and cpuset\n switch get_sb_ns() users\n switch procfs to -\u003emount()\n setting -\u003eproc_mnt doesn\u0027t belong in proc_get_sb()\n convert cifs\n convert nilfs\n switch logfs to -\u003emount()\n logfs: fix a leak in get_sb\n logfs get_sb, part 3\n logfs get_sb, part 2\n logfs get_sb massage, part 1\n convert v9fs\n ...\n" }, { "commit": "37542b6a7e73e81f8c066a48e6911e476ee3b22f", "tree": "39da99d28803b18c223eebe45c3170992ee08b7e", "parents": [ "c07724e5b868c603f2a65f3855c77b23454db3ed", "d4a6f3c32c39132318454e77d59ab14b06f6eb02" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 29 08:05:33 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 29 08:05:33 2010 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched_stat: Update sched_info_queue/dequeue() code comments\n sched, cgroup: Fixup broken cgroup movement\n" }, { "commit": "f7e835710ab5f6e43933c983f38f2d2e262b718c", "tree": "6acdc8212053398e6913dc5c0d8392edcf202f05", "parents": [ "ceefda6931806972ecf550bd8231dce4a4178953" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Jul 26 13:23:11 2010 +0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Oct 29 04:17:06 2010 -0400" }, "message": "convert cgroup and cpuset\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "e9f29c9a56ca06d0effa557823a737cbe7ec09f7", "tree": "c331c4aa741a8f384ee13d0b08bd340c23164b16", "parents": [ "800416f799e0723635ac2d720ad4449917a1481c", "1af3c2e45e7a641e774bbb84fa428f2f0bf2d9c9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 28 11:59:52 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 28 11:59:52 2010 -0700" }, "message": "Merge branch \u0027linux-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6\n\n* \u0027linux-next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (27 commits)\n x86: allocate space within a region top-down\n x86: update iomem_resource end based on CPU physical address capabilities\n x86/PCI: allocate space from the end of a region, not the beginning\n PCI: allocate bus resources from the top down\n resources: support allocating space within a region from the top down\n resources: handle overflow when aligning start of available area\n resources: ensure callback doesn\u0027t allocate outside available space\n resources: factor out resource_clip() to simplify find_resource()\n resources: add a default alignf to simplify find_resource()\n x86/PCI: MMCONFIG: fix region end calculation\n PCI: Add support for polling PME state on suspended legacy PCI devices\n PCI: Export some PCI PM functionality\n PCI: fix message typo\n PCI: log vendor/device ID always\n PCI: update Intel chipset names and defines\n PCI: use new ccflags variable in Makefile\n PCI: add PCI_MSIX_TABLE/PBA defines\n PCI: add PCI vendor id for STmicroelectronics\n x86/PCI: irq and pci_ids patch for Intel Patsburg DeviceIDs\n PCI: OLPC: Only enable PCI configuration type override on XO-1\n ...\n" }, { "commit": "91bad2f8d3057482b9afb599f14421b007136960", "tree": "ea5e09e74107593dcfc192c65c1395ed22674df4", "parents": [ "b842f8faf6c7dc2005c6a70631c1a91bac02f180" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Fri Oct 01 17:23:48 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Oct 28 09:17:40 2010 -0400" }, "message": "jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex\n\nregister_kprobe() downs the \u0027text_mutex\u0027 and then calls\njump_label_text_reserved(), which downs the \u0027jump_label_mutex\u0027.\nHowever, the jump label code takes those mutexes in the reverse\norder.\n\nFix by requiring the caller of jump_label_text_reserved() to do\nthe jump label locking via the newly added: jump_label_lock(),\njump_label_unlock(). Currently, kprobes is the only user\nof jump_label_text_reserved().\n\nReported-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nLKML-Reference: \u003c759032c48d5e30c27f0bba003d09bffa8e9f28bb.1285965957.git.jbaron@redhat.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" } ], "next": "b842f8faf6c7dc2005c6a70631c1a91bac02f180" }