)]}' { "log": [ { "commit": "67ba37293e938208795d6a3562201bdb0cf43393", "tree": "3522e949ff19f3809583bfb3fa3973ddf264689d", "parents": [ "cd07202cc8262e1669edff0d97715f3dd9260917", "5bba6c56dc99ff88f79a79572e29ecf445710878" ], "author": { "name": "Stefano Stabellini", "email": "stefano.stabellini@eu.citrix.com", "time": "Fri Oct 22 21:24:06 2010 +0100" }, "committer": { "name": "Stefano Stabellini", "email": "stefano.stabellini@eu.citrix.com", "time": "Fri Oct 22 21:24:06 2010 +0100" }, "message": "Merge commit \u0027konrad/stable/xen-pcifront-0.8.2\u0027 into 2.6.36-rc8-initial-domain-v6\n" }, { "commit": "c0a19ebc018222ffd1dd93af5b53d9efd779c19b", "tree": "f648fb93efb064b22000aca24e48dfda2cbfab0a", "parents": [ "2ee39065988d632b403f8470942b0b5edee3632b" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 21:58:27 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 21:59:55 2010 +0200" }, "message": "genirq: Fix CONFIG_GENIRQ_NO_DEPRECATED\u003dy build\n\nThis option can be set to verify the full conversion to the new chip\nfunctions. Fix the fallout of the patch rework, so the core code\ncompiles and works with it.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "d01343244abdedd18303d0323b518ed9cdcb1988", "tree": "ec3dff2c73f7fb5a728c4b2271028da3a51cdcd7", "parents": [ "c1e028ef40b8d6943b767028ba17d4f2ba020edb" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Tue Oct 12 12:06:43 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Oct 12 12:06:43 2010 -0400" }, "message": "ring-buffer: Fix typo of time extends per page\n\nTime stamps for the ring buffer are created by the difference between\ntwo events. Each page of the ring buffer holds a full 64 bit timestamp.\nEach event has a 27 bit delta stamp from the last event. The unit of time\nis nanoseconds, so 27 bits can hold ~134 milliseconds. If two events\nhappen more than 134 milliseconds apart, a time extend is inserted\nto add more bits for the delta. The time extend has 59 bits, which\nis good for ~18 years.\n\nCurrently the time extend is committed separately from the event.\nIf an event is discarded before it is committed, due to filtering,\nthe time extend still exists. If all events are being filtered, then\nafter ~134 milliseconds a new time extend will be added to the buffer.\n\nThis can only happen till the end of the page. Since each page holds\na full timestamp, there is no reason to add a time extend to the\nbeginning of a page. Time extends can only fill a page that has actual\ndata at the beginning, so there is no fear that time extends will fill\nmore than a page without any data.\n\nWhen reading an event, a loop is made to skip over time extends\nsince they are only used to maintain the time stamp and are never\ngiven to the caller. As a paranoid check to prevent the loop running\nforever, with the knowledge that time extends may only fill a page,\na check is made that tests the iteration of the loop, and if the\niteration is more than the number of time extends that can fit in a page\na warning is printed and the ring buffer is disabled (all of ftrace\nis also disabled with it).\n\nThere is another event type that is called a TIMESTAMP which can\nhold 64 bits of data in the theoretical case that two events happen\n18 years apart. This code has not been implemented, but the name\nof this event exists, as well as the structure for it. The\nsize of a TIMESTAMP is 16 bytes, where as a time extend is only\n8 bytes. The macro used to calculate how many time extends can fit on\na page used the TIMESTAMP size instead of the time extend size\ncutting the amount in half.\n\nThe following test case can easily trigger the warning since we only\nneed to have half the page filled with time extends to trigger the\nwarning:\n\n # cd /sys/kernel/debug/tracing/\n # echo function \u003e current_tracer\n # echo \u0027common_pid \u003c 0\u0027 \u003e events/ftrace/function/filter\n # echo \u003e trace\n # echo 1 \u003e trace_marker\n # sleep 120\n # cat trace\n\nEnabling the function tracer and then setting the filter to only trace\nfunctions where the process id is negative (no events), then clearing\nthe trace buffer to ensure that we have nothing in the buffer,\nthen write to trace_marker to add an event to the beginning of a page,\nsleep for 2 minutes (only 35 seconds is probably needed, but this\nguarantees the bug), and then finally reading the trace which will\ntrigger the bug.\n\nThis patch fixes the typo and prevents the false positive of that warning.\n\nReported-by: Hans J. Koch \u003chjk@linutronix.de\u003e\nTested-by: Hans J. Koch \u003chjk@linutronix.de\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Stable Kernel \u003cstable@kernel.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "baa0d233afe765daa6dc01ff233aea8c5944f534", "tree": "23b0793b6014b637680cddef4ccc4a2860cf6436", "parents": [ "a05a900a51c7622ebd8ddb41f14f8bf9db599d8d" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 05 15:14:35 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:53:45 2010 +0200" }, "message": "genirq: Switch sparse_irq allocator to GFP_KERNEL\n\nThe allocator functions are now called outside of preempt disabled\nregions. Switch to GFP_KERNEL.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a05a900a51c7622ebd8ddb41f14f8bf9db599d8d", "tree": "3c0f7d5c6aff2af86c350c76cc44631e620d9333", "parents": [ "c2f31c37b7303150ffcce53f6c6ed4ac62952b34" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Oct 08 12:47:53 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:53:45 2010 +0200" }, "message": "genirq: Make sparse_lock a mutex\n\nNo callers from atomic regions. \n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "78f90d91f395cd0dc1ef3f21e0c5cd6fd50d202c", "tree": "e9a6b0a5d8a0b99cd23dbc1c1f376a7e78a93428", "parents": [ "b7b29338dc7111ed8bd4d6555d84afae13ebe752" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Sep 29 17:18:47 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:53:44 2010 +0200" }, "message": "genirq: Remove the now unused sparse irq leftovers\n\nThe move_irq_desc() function was only used due to the problem that the\nallocator did not free the old descriptors. So the descriptors had to\nbe moved in create_irq_nr(). That\u0027s history.\n\nThe code would have never been able to move active interrupt\ndescriptors on affinity settings. That can be done in a completely\ndifferent way w/o all this horror.\n\nRemove all of it.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b7b29338dc7111ed8bd4d6555d84afae13ebe752", "tree": "4c3159ea8bb0489ba463a061d3e6446dbfb45af2", "parents": [ "b7d0d8258a9f71949b810e0f82a3d75088f4d364" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Sep 29 18:46:55 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:53:44 2010 +0200" }, "message": "genirq: Sanitize dynamic irq handling\n\nUse the cleanup functions of the dynamic allocator. No need to have\nseparate implementations.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b7d0d8258a9f71949b810e0f82a3d75088f4d364", "tree": "1e37a6d3e89816abab898e3646a4e23eeb457021", "parents": [ "77dff1c755c3218691e95e7e38ee14323b35dbdb" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Sep 29 18:44:23 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:53:44 2010 +0200" }, "message": "genirq: Remove arch_init_chip_data()\n\nThis function should have not been there in the first place.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7c5f13519a67aa7ba3a99155f128d4bdef87d087", "tree": "e4d0537092930a53a85932de83a7861990c58607", "parents": [ "5e62feabcc3e4127a084701ec54ffe891985b7e8", "021989622810b02aab4b24f91e1f5ada2b654579" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:41:22 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:41:26 2010 +0200" }, "message": "Merge branch \u0027x86/urgent\u0027 of into irq/sparseirq\n\nReason: Pull in the latest io_apic bugfixes\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "b683de2b3cb17bb10fa6fd4af614dc75b5749fe0", "tree": "e1a799293b218f5c13d4903c57fab144b2f433b3", "parents": [ "aa99ec0f3f26bf2bcd0fa5176de93598427f1e5e" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 20:55:03 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:08 2010 +0200" }, "message": "genirq: Query arch for number of early descriptors\n\nsparse irq sets up NR_IRQS_LEGACY irq descriptors and archs then go\nahead and allocate more.\n\nUse the unused return value of arch_probe_nr_irqs() to let the\narchitecture return the number of early allocations. Fix up all users.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "aa99ec0f3f26bf2bcd0fa5176de93598427f1e5e", "tree": "bbba6c0fc1293f0bc854644aa177ea67306f8814", "parents": [ "25ade601a0f97453c6f511ebfae9339e06a28d75" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 20:02:56 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:07 2010 +0200" }, "message": "genirq: Use sane sparse allocator\n\nMake irq_to_desc_alloc_node() a wrapper around the new allocator.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "06f6c3399e9f9ff6eafc200e80f9226c3cee0eaf", "tree": "f4d8fc67194b1a50bfe501634088b3776ca6bbd4", "parents": [ "a98d24b71b6e229965f18dc00d28dc71cb8fe324" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 12:31:46 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:07 2010 +0200" }, "message": "genirq: Implement irq reservation\n\nMark a range of interrupts as allocated. In the SPARSE_IRQ\u003dn case we\nneed this to update the bitmap for the legacy irqs so the enumerator\nvia irq_get_next_irq() works.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\n" }, { "commit": "a98d24b71b6e229965f18dc00d28dc71cb8fe324", "tree": "213a6daf67e459b2078e630d5a8163c3b8fd3a9c", "parents": [ "13bfe99e09123ef5edb6acb81ba337d2db600b53" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Sep 30 10:45:07 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:07 2010 +0200" }, "message": "genirq: Implement sane enumeration\n\nUse the allocator bitmap to lookup active interrupts.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "13bfe99e09123ef5edb6acb81ba337d2db600b53", "tree": "f96f5be41c90e1ab437bb40a02a8f137deb9e3ab", "parents": [ "1f5a5b87f78fade3ae48dfd55e8765d1d622ea4e" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Sep 30 02:46:07 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:07 2010 +0200" }, "message": "genirq: Prepare proc for real sparse irq support\n\n/proc/irq never removes any entries, but when irq descriptors can be\nfreed for real this is necessary. Otherwise we\u0027d reference a freed\ndescriptor in /proc/irq/N\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1f5a5b87f78fade3ae48dfd55e8765d1d622ea4e", "tree": "762a5dbf40129ffd9667a170b2503a77c95320f7", "parents": [ "1318a481fc37c503a901b96ae06b692ca2b21af5" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 17:48:26 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:07 2010 +0200" }, "message": "genirq: Implement a sane sparse_irq allocator\n\nThe current sparse_irq allocator has several short comings due to\nfailures in the design or the lack of it:\n\n - Requires iteration over the number of active irqs to find a free slot\n (Some architectures have grown their own workarounds for this)\n - Removal of entries is not possible\n - Racy between create_irq_nr and destroy_irq (plugged by horrible\n callbacks)\n - Migration of active irq descriptors is not possible\n - No bulk allocation of irq ranges\n - Sprinkeled irq_desc references all over the place outside of kernel/irq/\n (The previous chip functions series is addressing this issue)\n\nImplement a sane allocator which fixes the above short comings (though\nmigration of active descriptors needs a full tree wide cleanup of the\ndirect and mostly unlocked access to irq_desc).\n\nThe new allocator still uses a radix_tree, but uses a bitmap for\nkeeping track of allocated irq numbers. That allows:\n\n - Fast lookup of a free slot\n - Allows the removal of descriptors\n - Prevents the create/destroy race\n - Bulk allocation of consecutive irq ranges\n - Basic design is ready for migration of life descriptors after\n further cleanups\n\nThe bitmap is also used in the SPARSE_IRQ\u003dn case for lookup and\nraceless (de)allocation of irq numbers. So it removes the requirement\nfor looping through the descriptor array to find slots.\n\nRight now it uses sparse_irq_lock to protect the bitmap and the radix\ntree, but after cleaning up all users we should be able convert that\nto a mutex and to switch the radix_tree and decriptor allocations to\nGFP_KERNEL.\n\n[ Folded in a bugfix from Yinghai Lu ]\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "1318a481fc37c503a901b96ae06b692ca2b21af5", "tree": "2b1bb8f52af5938759af38efdfa8a868b02d5804", "parents": [ "d895f51ebb54cefe367bda135fcf2cd734d51d03" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 21:01:37 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:06 2010 +0200" }, "message": "genirq: Provide default irq init flags\n\nArch code sets it\u0027s own irq_desc.status flags right after boot and for\ndynamically allocated interrupts. That might involve iterating over a\nhuge array.\n\nAllow ARCH_IRQ_INIT_FLAGS to set separate flags aside of IRQ_DISABLED\nwhich is the default.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d895f51ebb54cefe367bda135fcf2cd734d51d03", "tree": "bb70160ad291a7280ff8e8a2aba07d407f7f07dc", "parents": [ "40f08a724fcc21285cf3a75aec957aef908605c6" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 17:45:49 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:06 2010 +0200" }, "message": "genirq: Remove export of kstat_irqs_cpu\n\nThe statistics accessor is only used by proc/stats and\nshow_interrupts(). Both are compiled in.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "154cd387cdf0e5566ce523cbddf92dd2a062dfd6", "tree": "8ab329f26992c570b65fe62843275eb71c8bf505", "parents": [ "3795de236d67a05994a1a12759db9d4dd9ffc42c" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Sep 22 15:58:45 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:06 2010 +0200" }, "message": "genirq: Remove early_init_irq_lock_class()\n\nearly_init_irq_lock_class() is called way before anything touches the\nirq descriptors. In case of SPARSE_IRQ\u003dy this is a NOP operation\nbecause the radix tree is empty at this point. For the SPARSE_IRQ\u003dn\ncase it\u0027s sufficient to set the lock class in early_init_irq(). \n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3795de236d67a05994a1a12759db9d4dd9ffc42c", "tree": "75e5a2a8922e114de60f468494c879ba4f65ebee", "parents": [ "f303a6dd127b5ec6de90d1cd79ed19820c7e9658" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Wed Sep 22 17:09:43 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:05 2010 +0200" }, "message": "genirq: Distangle kernel/irq/handle.c\n\nkernel/irq/handle.c has become a dumpground for random code in random\norder. Split out the irq descriptor management and the dummy irq_chip\nimplementation into separate files. Cleanup the include maze while at\nit.\n\nNo code change.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f303a6dd127b5ec6de90d1cd79ed19820c7e9658", "tree": "8060ccc63ab56406e6a9535b21cca29f17956052", "parents": [ "442471848f5abb55b99cba1229301655f67492b4" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Sep 28 17:34:01 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:05 2010 +0200" }, "message": "genirq: Sanitize irq_data accessors\n\nGet the data structure from the core and provide inline wrappers to\naccess the irq_data members.\n\nProvide accessor inlines for irq_data as well.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "442471848f5abb55b99cba1229301655f67492b4", "tree": "4265a98a62db515d2b0a63d95a7c7e5badb1dbc0", "parents": [ "3a3856d00c74560a7b8d9f8a13c1ca94ee786b78" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Sep 28 10:40:18 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:05 2010 +0200" }, "message": "genirq: Provide status modifier\n\nProvide a irq_desc.status modifier function to cleanup the direct\naccess to irq_desc in arch and driver code.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n\n" }, { "commit": "e144710b302525de5b90b9c3ba43562458d8957f", "tree": "0a6ef61ccb4957512ebf4a1887ba3bc54e78f99e", "parents": [ "fe21221386e46b8e0f2cbd83559a29680c28473b" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Oct 01 16:03:45 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Tue Oct 12 16:39:04 2010 +0200" }, "message": "genirq: Distangle irq.h\n\nMove irq_desc and internal functions out of irq.h\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ad0cf3478de8677f720ee06393b3147819568d6a", "tree": "cd007170b0f20f724924ff53897bf534847e14c4", "parents": [ "29979aa8bd69becd94cbad59093807a417ce2a9e" ], "author": { "name": "John Blackwood", "email": "john.blackwood@ccur.com", "time": "Tue Sep 28 18:03:11 2010 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Oct 12 11:45:01 2010 +0200" }, "message": "perf: Fix incorrect copy_from_user() usage\n\nperf events: repair incorrect use of copy_from_user\n\nThis makes the perf_event_period() return 0 instead of\n-EFAULT on success.\n\nSigned-off-by: John Blackwood\u003cjohn.blackwood@ccur.com\u003e\nSigned-off-by: Joe Korty \u003cjoe.korty@ccur.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c20100928220311.GA18145@tsunami.ccur.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6b0cd00bc396daf5c2dcf17a8d82055335341f46", "tree": "a63db9ea2871bcd05f3cb95fc152be33ea929a1a", "parents": [ "c8d86d8ac439ef6c9364bf0ba3a05a3f9a8e0dea", "47f43e7efadacc627f325aba64c6a547de0926db" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 07 13:59:32 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 07 13:59:32 2010 -0700" }, "message": "Merge branch \u0027hwpoison-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6\n\n* \u0027hwpoison-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6:\n HWPOISON: Stop shrinking at right page count\n HWPOISON: Report correct address granuality for AO huge page errors\n HWPOISON: Copy si_addr_lsb to user\n page-types.c: fix name of unpoison interface\n" }, { "commit": "27b3d80a7b6adcf069b5e869e4efcc3a79f88a91", "tree": "aa2c9db5131dee90a0aa8155ac3dfa1ddb07619b", "parents": [ "aaac7d9e0a0630e79069341a37978b39e4bca704" ], "author": { "name": "Eric Dumazet", "email": "eric.dumazet@gmail.com", "time": "Thu Oct 07 12:59:29 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 07 13:31:21 2010 -0700" }, "message": "sysctl: fix min/max handling in __do_proc_doulongvec_minmax()\n\nWhen proc_doulongvec_minmax() is used with an array of longs, and no\nmin/max check requested (.extra1 or .extra2 being NULL), we dereference a\nNULL pointer for the second element of the array.\n\nNoticed while doing some changes in network stack for the \"16TB problem\"\n\nFix is to not change min \u0026 max pointers in __do_proc_doulongvec_minmax(),\nso that all elements of the vector share an unique min/max limit, like\nproc_dointvec_minmax().\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Americo Wang \u003cxiyou.wangcong@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a337fdac7a5622d1e6547f4b476c14dfe5a2c892", "tree": "2c4072b1188235f348f4ee58e18a027ec61ea4dc", "parents": [ "67159813127309c1a65d86e40fa0368241fa668c" ], "author": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Mon Sep 27 20:32:19 2010 +0200" }, "committer": { "name": "Andi Kleen", "email": "ak@linux.intel.com", "time": "Thu Oct 07 09:41:25 2010 +0200" }, "message": "HWPOISON: Copy si_addr_lsb to user\n\nThe original hwpoison code added a new siginfo field si_addr_lsb to\npass the granuality of the fault address to user space. Unfortunately\nthis field was never copied to user space. Fix this here.\n\nI added explicit checks for the MCEERR codes to avoid having\nto patch all potential callers to initialize the field.\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\n" }, { "commit": "e1d9694cae722d00a94fb58f901aa69c9c324a16", "tree": "19a7f36292adbc178ba4fac6f2f9e1acadb1b3f1", "parents": [ "39c12be86aaedd2f81bfb2236aca5333a2334dea", "b3a084b9b684622b149e8dcf03855bf0d5fb588b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 05 13:07:43 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 05 13:07:43 2010 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n rcu: rcu_read_lock_bh_held(): disabling irqs also disables bh\n generic-ipi: Fix deadlock in __smp_call_function_single\n" }, { "commit": "5336377d6225959624146629ce3fc88ee8ecda3d", "tree": "571b9db75d1ba50faa1e399509563f367fd5694f", "parents": [ "2f6b3aa7a563d05453c4d73ccf88191aee84333f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 05 11:29:27 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Oct 05 11:29:27 2010 -0700" }, "message": "modules: Fix module_bug_list list corruption race\n\nWith all the recent module loading cleanups, we\u0027ve minimized the code\nthat sits under module_mutex, fixing various deadlocks and making it\npossible to do most of the module loading in parallel.\n\nHowever, that whole conversion totally missed the rather obscure code\nthat adds a new module to the list for BUG() handling. That code was\ndoubly obscure because (a) the code itself lives in lib/bugs.c (for\ndubious reasons) and (b) it gets called from the architecture-specific\n\"module_finalize()\" rather than from generic code.\n\nCalling it from arch-specific code makes no sense what-so-ever to begin\nwith, and is now actively wrong since that code isn\u0027t protected by the\nmodule loading lock any more.\n\nSo this commit moves the \"module_bug_{finalize,cleanup}()\" calls away\nfrom the arch-specific code, and into the generic code - and in the\nprocess protects it with the module_mutex so that the list operations\nare now safe.\n\nFuture fixups:\n - move the module list handling code into kernel/module.c where it\n belongs.\n - get rid of \u0027module_bug_list\u0027 and just use the regular list of modules\n (called \u0027modules\u0027 - imagine that) that we already create and maintain\n for other reasons.\n\nReported-and-tested-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: stable@kernel.org\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bd151412263a67b5321e9dd1d5b4bf6d96fdebf3", "tree": "7571b3eaf7ebc2ef200fb00688543f00a451c5f9", "parents": [ "21e2b8c62cca8f7dbec0c8c131ca1637e4a5670f" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Oct 01 15:17:14 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 13:40:24 2010 +0200" }, "message": "genirq: Provide config option to disable deprecated code\n\nThis option covers now the old chip functions and the irq_desc data\nfields which are moving to struct irq_data. More stuff will follow.\n\nPretty handy for testing a conversion, whether something broke or not.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "21e2b8c62cca8f7dbec0c8c131ca1637e4a5670f", "tree": "8810be220dc49cf78c055ba960b1083cd1459a21", "parents": [ "2f7e99bb9be6a2d8d7b808dc86037710cc8b7bf1" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:53 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:50 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eretrigger()\n\nWrap the old chip function retrigger() until the migration is complete\nand the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121843.025801092@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "2f7e99bb9be6a2d8d7b808dc86037710cc8b7bf1", "tree": "c620f5e8eb1a160bebb73a330fecd95a430977ed", "parents": [ "b2ba2c30033c10cca2454f8b44bf98f5249e61c6" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:50 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:48 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eset_wake()\n\nWrap the old chip function set_wake() until the migration is complete\nand the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.927527393@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b2ba2c30033c10cca2454f8b44bf98f5249e61c6", "tree": "a168cbcd1314f76edccecd5984d75793773b5239", "parents": [ "c96b3b3c448592a0b87ef20306deb8b1fb4878c7" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:47 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:47 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eset_type()\n\nWrap the old chip function set_type() until the migration is complete\nand the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.832261548@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c96b3b3c448592a0b87ef20306deb8b1fb4878c7", "tree": "744c6879a585b9ab07ed51315930f8a673c09aed", "parents": [ "37e12df709f09eac17314d79a52190ac46746e33" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:41 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:46 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eset_affinity()\n\nWrap the old chip function set_affinity() until the migration is\ncomplete and the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.732894108@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "37e12df709f09eac17314d79a52190ac46746e33", "tree": "78159578101faddef22c5b13ccc200542cb3d2b6", "parents": [ "bc310dda41be6439364c8f3b9fe7c9d743d22b1c" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:38 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:44 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003estartup()\n\nWrap the old chip function startup() until the migration is complete and\nthe old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.635152961@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bc310dda41be6439364c8f3b9fe7c9d743d22b1c", "tree": "86a8b4da3d9e81aad104b61023858813454b0f35", "parents": [ "c5f756344c390f629243b4a28c2bd198fdfd7ee9" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:02 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:43 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003edisable()/shutdown()\n\nWrap the old chip functions disable() and shutdown() until the\nmigration is complete and the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.532070631@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c5f756344c390f629243b4a28c2bd198fdfd7ee9", "tree": "9bd1ce01615c9e29ccf970a6478d5eb75fe1ddde", "parents": [ "0c5c15572ac096001f52d37b416f2a4be9aebb80" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:56 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:42 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eenable()\n\nWrap the old chip function enable() until the migration is complete and\nthe old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.437159182@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0c5c15572ac096001f52d37b416f2a4be9aebb80", "tree": "54c2559cac7e6ee71e31d6b41a1980a392f202b3", "parents": [ "9205e31d1af0f725e71bbae10d199c6b9e8d6dd8" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:53 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:41 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eeoi()\n\nWrap the old chip function eoi() until the migration is complete and\nthe old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.339657617@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9205e31d1af0f725e71bbae10d199c6b9e8d6dd8", "tree": "9ed35cf7a968ed94395ade073880c7b951f5aa92", "parents": [ "22a49163e90dd7088f801dd54e25b04e1f337e9b" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:50 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:40 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003emask_ack()\n\nWrap the old chip function mask_ack() until the migration is complete\nand the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.240806983@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "22a49163e90dd7088f801dd54e25b04e1f337e9b", "tree": "4b1e13b29959be2a03ae6892b469f1f11bb08823", "parents": [ "0eda58b7f3a30c9a13d83db1cfaab00e1c452055" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:47 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:38 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eack()\n\nWrap the old chip function ack() until the migration is complete and\nthe old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.142624725@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0eda58b7f3a30c9a13d83db1cfaab00e1c452055", "tree": "6e6efb689188f20271d8dd290008652d3c3defd8", "parents": [ "e2c0f8ff0fc26959952fbfa89f732fef928df77f" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:44 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:37 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003eunmask()\n\nWrap the old chip function unmask() until the migration is complete\nand the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121842.043608928@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e2c0f8ff0fc26959952fbfa89f732fef928df77f", "tree": "3a85e05d69b4c48c86bcd3b032d8f6e239a3c126", "parents": [ "3876ec9ef3775d062345b3760d3271ecb8cd3fea" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:42 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:36 2010 +0200" }, "message": "genirq: Provide compat handling for chip-\u003emask()\n\nWrap the old chip function mask() until the migration is complete and\nthe old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121841.940355859@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "3876ec9ef3775d062345b3760d3271ecb8cd3fea", "tree": "6c1cd233753fe09d48bdf107da34b4dbe4e003fc", "parents": [ "a77c4635915021c646cc017f22239e66d1aab4d5" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:35 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:35 2010 +0200" }, "message": "genirq: Provide compat handling for bus_lock/bus_sync_unlock\n\nWrap the old chip functions for bus_lock/bus_sync_unlock until the\nmigration is complete and the old chip functions are removed.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121841.842536121@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "a77c4635915021c646cc017f22239e66d1aab4d5", "tree": "59f372efa6d87064fda9c901ea785c838cb642e5", "parents": [ "f8822657e799b02c55556c99a601261e207a299d" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Oct 01 14:44:58 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:43:34 2010 +0200" }, "message": "genirq: Add new functions to dummy chips\n\nThe compat functions go away when the core code is converted.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6b8ff3120c758340505dddf08ad685ebb841d5d5", "tree": "794eed27c6f9a8931b8fdf4a7ae60a1560b237fc", "parents": [ "ff7dcd44dd446db2c3e13bdedf2d52b8e0127f16" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Fri Oct 01 12:58:38 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:36:26 2010 +0200" }, "message": "genirq: Convert core code to irq_data\n\nConvert all references in the core code to orq, chip, handler_data,\nchip_data, msi_desc, affinity to irq_data.*\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ff7dcd44dd446db2c3e13bdedf2d52b8e0127f16", "tree": "ca03e829ea08aa536124a7777d99233dbbd89984", "parents": [ "3bb9808e99bcc36eecb8e082bf70efb2a0bcdcb7" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:44:25 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 12:27:16 2010 +0200" }, "message": "genirq: Create irq_data\n\nLow level chip functions need access to irq_desc-\u003ehandler_data,\nirq_desc-\u003echip_data and irq_desc-\u003emsi_desc. We hand down the irq\nnumber to the low level functions, so they need to lookup irq_desc.\nWith sparse irq this means a radix tree lookup.\n\nWe could hand down irq_desc itself, but low level chip functions have\nno need to fiddle with it directly and we want to restrict access to\nirq_desc further.\n\nPreparatory patch for new chip functions.\n\nNote, that the ugly anon union/struct is there to avoid a full tree\nwide clean up for now. This is not going to last 3 years like __do_IRQ()\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121841.645542300@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d9817ebeeef16e01487549312c68540ca8f1561b", "tree": "7bb05550dcd1b4ec2cd6cf92e38d783b6f5e8c9e", "parents": [ "e7ffec1eb178db349c7fbfd647725e9d06619962" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Sep 27 12:45:59 2010 +0000" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Mon Oct 04 11:01:05 2010 +0200" }, "message": "genirq: Provide Kconfig\n\nThe generic irq Kconfig options are copied around all archs. Provide a\ngeneric Kconfig file which can be included.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nLKML-Reference: \u003c20100927121843.217333624@linutronix.de\u003e\nReviewed-by: H. Peter Anvin \u003chpa@zytor.com\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "399f1e30ac17b77d383444aff480c7390f5adf2a", "tree": "da24eab64af0bef6fa4f8fba1c3fedb435a65418", "parents": [ "87400e5406e215e9a1b43cf67794fbb34c15c342" ], "author": { "name": "Ira W. Snyder", "email": "iws@ovro.caltech.edu", "time": "Thu Sep 30 15:15:27 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Oct 01 10:50:58 2010 -0700" }, "message": "kfifo: fix scatterlist usage\n\nThe kfifo_dma family of functions use sg_mark_end() on the last element in\ntheir scatterlist. This forces use of a fresh scatterlist for each DMA\noperation, which makes recycling a single scatterlist impossible.\n\nChange the behavior of the kfifo_dma functions to match the usage of the\ndma_map_sg function. This means that users must respect the returned\nnents value. The sample code is updated to reflect the change.\n\nThis bug is trivial to cause: call kfifo_dma_in_prepare() such that it\nprepares a scatterlist with a single entry comprising the whole fifo.\nThis is the case when you map the entirety of a newly created empty fifo.\nThis causes the setup_sgl() function to mark the first scatterlist entry\nas the end of the chain, no matter what comes after it.\n\nAfterwards, add and remove some data from the fifo such that another call\nto kfifo_dma_in_prepare() will create two scatterlist entries. It returns\nnents\u003d2. However, due to the previous sg_mark_end() call, sg_is_last()\nwill now return true for the first scatterlist element. This causes the\nsample code to print a single scatterlist element when it should print\ntwo.\n\nBy removing the call to sg_mark_end(), we make the API as similar as\npossible to the DMA mapping API. All users are required to respect the\nreturned nents.\n\nSigned-off-by: Ira W. Snyder \u003ciws@ovro.caltech.edu\u003e\nCc: Stefani Seibold \u003cstefani@seibold.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d1ea13c6e2cce0106531852daaa93dd97aec9580", "tree": "9a49b1029af4e63e08267d2b4d6e2f66396be0aa", "parents": [ "a800c7cc5380fbb6b4f2f3bd89f6776eb3da2242" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Sep 23 18:40:07 2010 +0200" }, "committer": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Thu Sep 23 19:12:26 2010 +0200" }, "message": "genirq: Cleanup irq_chip-\u003etypename leftovers\n\n3 years transition phase is enough. Cleanup the last users and remove\nthe cruft.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Leo Chen \u003cleochen@broadcom.com\u003e\nCc: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nCc: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\n" }, { "commit": "a247c3a97a0216b18a46243eda26081f1928ec37", "tree": "ecf6996b252e9cc818d170eba4b8eb25aac3d596", "parents": [ "df08cdc7ef606509debe7677c439be0ca48790e4" ], "author": { "name": "Andrea Arcangeli", "email": "aarcange@redhat.com", "time": "Wed Sep 22 13:05:12 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 22 17:22:39 2010 -0700" }, "message": "rmap: fix walk during fork\n\nThe below bug in fork led to the rmap walk finding the parent huge-pmd\ntwice instead of just once, because the anon_vma_chain objects of the\nchild vma still point to the vma-\u003evm_mm of the parent.\n\nThe patch fixes it by making the rmap walk accurate during fork. It\u0027s not\na big deal normally but it worth being accurate considering the cost is\nthe same.\n\nSigned-off-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nAcked-by: Johannes Weiner \u003cjweiner@redhat.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Hugh Dickins \u003chughd@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1ce1e41c1b61a992077bd1c45c6c3fd6a8b10c02", "tree": "33d958f957e77c93612b027deb91f2e81b08d372", "parents": [ "87ac6fa26e0e7ea49e1c8030e962effc05e1c5eb", "f6c3f1686e7ec1dd8725a9a3dcb857dfd0c7a5bf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 21 13:22:10 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 21 13:22:10 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: Fix nohz balance kick\n sched: Fix user time incorrectly accounted as system time on 32-bit\n" }, { "commit": "87ac6fa26e0e7ea49e1c8030e962effc05e1c5eb", "tree": "a5fffa16fc3131f057cf2791fd17d4959136323d", "parents": [ "19746cad00a00a7a2e3eb0640d317d6e7c2e8cc0", "068e35eee9ef98eb4cab55181977e24995d273be" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 21 13:21:42 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 21 13:21:42 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n hw breakpoints: Fix pid namespace bug\n x86: Fix instruction breakpoint encoding\n oprofile: Add Support for Intel CPU Family 6 / Model 22 (Intel Celeron 540)\n kprobes: Fix Kconfig dependency\n" }, { "commit": "f6c3f1686e7ec1dd8725a9a3dcb857dfd0c7a5bf", "tree": "fb0179d1f071dbb857e0ab7f2aace4579deb62c1", "parents": [ "e75e863dd5c7d96b91ebbd241da5328fc38a78cc" ], "author": { "name": "Suresh Siddha", "email": "suresh.b.siddha@intel.com", "time": "Mon Sep 13 11:02:21 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Sep 21 13:50:50 2010 +0200" }, "message": "sched: Fix nohz balance kick\n\nThere\u0027s a situation where the nohz balancer will try to wake itself:\n\ncpu-x is idle which is also ilb_cpu\ngot a scheduler tick during idle\nand the nohz_kick_needed() in trigger_load_balance() checks for\nrq_x-\u003enr_running which might not be zero (because of someone waking a\ntask on this rq etc) and this leads to the situation of the cpu-x\nsending a kick to itself.\n\nAnd this can cause a lockup.\n\nAvoid this by not marking ourself eligible for kicking.\n\nSigned-off-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1284400941.2684.19.camel@sbsiddha-MOBL3.sc.intel.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "068e35eee9ef98eb4cab55181977e24995d273be", "tree": "f0ff9a1c1558218c6de222b58ea8f88a679151a0", "parents": [ "89e45aac42d40426c97e6901811309bf49c4993f" ], "author": { "name": "Matt Helsley", "email": "matthltc@us.ibm.com", "time": "Mon Sep 13 13:01:18 2010 -0700" }, "committer": { "name": "Frederic Weisbecker", "email": "fweisbec@gmail.com", "time": "Fri Sep 17 04:42:59 2010 +0200" }, "message": "hw breakpoints: Fix pid namespace bug\n\nHardware breakpoints can\u0027t be registered within pid namespaces\nbecause tsk-\u003epid is passed rather than the pid in the current\nnamespace.\n\n(See https://bugzilla.kernel.org/show_bug.cgi?id\u003d17281 )\n\nThis is a quick fix demonstrating the problem but is not the\nbest method of solving the problem since passing pids internally\nis not the best way to avoid pid namespace bugs. Subsequent patches\nwill show a better solution.\n\nMuch thanks to Frederic Weisbecker \u003cfweisbec@gmail.com\u003e for doing\nthe bulk of the work finding this bug.\n\nReported-by: Robin Green \u003cgreenrd@greenrd.org\u003e\nSigned-off-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Prasad \u003cprasad@linux.vnet.ibm.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Will Deacon \u003cwill.deacon@arm.com\u003e\nCc: Mahesh Salgaonkar \u003cmahesh@linux.vnet.ibm.com\u003e\nCc: 2.6.33-2.6.35 \u003cstable@kernel.org\u003e\nLKML-Reference: \u003cf63454af09fb1915717251570423eb9ddd338340.1284407762.git.matthltc@us.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\n" }, { "commit": "94ca9d669a1308fefe476fde750c5297b6f86f3f", "tree": "0e6ffa86be5d133669755929a1bf60a9bb170826", "parents": [ "2c35cd019fc4a0e29db8ef29afba9f91a3cd4d23", "c54fce6eff197d9c57c97afbf6c9722ce434fc8f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 16 12:50:31 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 16 12:50:31 2010 -0700" }, "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: add documentation\n" }, { "commit": "e75e863dd5c7d96b91ebbd241da5328fc38a78cc", "tree": "b7b67512b6b610c8ee90149c9b48dbaeeb1e4910", "parents": [ "9c03f1622af051004416dd3e24d8a0fa31e34178" ], "author": { "name": "Stanislaw Gruszka", "email": "sgruszka@redhat.com", "time": "Tue Sep 14 16:35:14 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 15 10:41:36 2010 +0200" }, "message": "sched: Fix user time incorrectly accounted as system time on 32-bit\n\nWe have 32-bit variable overflow possibility when multiply in\ntask_times() and thread_group_times() functions. When the\noverflow happens then the scaled utime value becomes erroneously\nsmall and the scaled stime becomes i erroneously big.\n\nReported here:\n\n https://bugzilla.redhat.com/show_bug.cgi?id\u003d633037\n https://bugzilla.kernel.org/show_bug.cgi?id\u003d16559\n\nReported-by: Michael Chapman \u003credhat-bugzilla@very.puzzling.org\u003e\nReported-by: Ciriaco Garcia de Celis \u003csysman@etherpilot.com\u003e\nSigned-off-by: Stanislaw Gruszka \u003csgruszka@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: \u003cstable@kernel.org\u003e # 2.6.32.19+ (partially) and 2.6.33+\nLKML-Reference: \u003c20100914143513.GB8415@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c41d68a513c71e35a14f66d71782d27a79a81ea6", "tree": "2729377678b4f0fa516404eec6c3a87a4fd7c823", "parents": [ "bfa88ea7ee9e6b4fd673e45a8cc0a8e0b7ef4761" ], "author": { "name": "H. Peter Anvin", "email": "hpa@linux.intel.com", "time": "Tue Sep 07 16:16:18 2010 -0700" }, "committer": { "name": "H. Peter Anvin", "email": "hpa@linux.intel.com", "time": "Tue Sep 14 16:08:45 2010 -0700" }, "message": "compat: Make compat_alloc_user_space() incorporate the access_ok()\n\ncompat_alloc_user_space() expects the caller to independently call\naccess_ok() to verify the returned area. A missing call could\nintroduce problems on some architectures.\n\nThis patch incorporates the access_ok() check into\ncompat_alloc_user_space() and also adds a sanity check on the length.\nThe existing compat_alloc_user_space() implementations are renamed\narch_compat_alloc_user_space() and are used as part of the\nimplementation of the new global function.\n\nThis patch assumes NULL will cause __get_user()/__put_user() to either\nfail or access userspace on all architectures. This should be\nfollowed by checking the return value of compat_access_user_space()\nfor NULL in the callers, at which time the access_ok() in the callers\ncan also be removed.\n\nReported-by: Ben Hawkes \u003chawkes@sota.gen.nz\u003e\nSigned-off-by: H. Peter Anvin \u003chpa@linux.intel.com\u003e\nAcked-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nAcked-by: Chris Metcalf \u003ccmetcalf@tilera.com\u003e\nAcked-by: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nAcked-by: Tony Luck \u003ctony.luck@intel.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Fenghua Yu \u003cfenghua.yu@intel.com\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Helge Deller \u003cdeller@gmx.de\u003e\nCc: James Bottomley \u003cjejb@parisc-linux.org\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: \u003cstable@kernel.org\u003e\n" }, { "commit": "0bf377bbb0bea6130f35613491887cc622e42a8b", "tree": "1ecb56fb6195dcdb673ef3a08390b98e54f4f726", "parents": [ "49553c2ef88749dd502687f4eb9c258bb10a4f44" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 12 08:14:52 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Sep 13 20:17:11 2010 +0200" }, "message": "sched: Improve latencies under load by decreasing minimum scheduling granularity\n\nMathieu reported bad latencies with make -j10 kind of kbuild\nworkloads - which is mostly caused by us scheduling with a\ntoo coarse granularity.\n\nReduce the minimum granularity some more, to make sure we\ncan meet the latency target.\n\nI got the following results (make -j10 kbuild load, average of 3\nruns):\n\n vanilla:\n\n maximum latency: 38278.9 µs\n average latency: 7730.1 µs\n\n patched:\n\n maximum latency: 22702.1 µs\n average latency: 6684.8 µs\n\nMathieu also measured it:\n\n|\n| * wakeup-latency.c (SIGEV_THREAD) with make -j10\n|\n| - Mainline 2.6.35.2 kernel\n|\n| maximum latency: 45762.1 µs\n| average latency: 7348.6 µs\n|\n| - With only Peter\u0027s smaller min_gran (shown below):\n|\n| maximum latency: 29100.6 µs\n| average latency: 6684.1 µs\n|\n\nReported-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nReported-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\nAcked-by: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nSuggested-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cAANLkTi\u003d8m4g01wZPacySoF7U0PevTNVgJoZZrHiUD-pN@mail.gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c54fce6eff197d9c57c97afbf6c9722ce434fc8f", "tree": "c40c9bf65638399b13c47688f20e761cdd0fa89c", "parents": [ "84e1d836ef0759a152578a961894824bde89596f" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Fri Sep 10 16:51:36 2010 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Sep 13 10:26:52 2010 +0200" }, "message": "workqueue: add documentation\n\nUpdate copyright notice and add Documentation/workqueue.txt.\n\nRandy Dunlap, Dave Chinner: misc fixes.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReviewed-By: Florian Mickler \u003cflorian@mickler.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Dave Chinner \u003cdavid@fromorbit.com\u003e\n" }, { "commit": "84e1d836ef0759a152578a961894824bde89596f", "tree": "47c439bfdc9e5ea91f9a71235d336257555fad78", "parents": [ "20f4cad6b247160055915db4f4aaeda82e6c50ed", "6715045ddc7472a22be5e49d4047d2d89b391f45" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 11 15:50:53 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 11 15:50:53 2010 -0700" }, "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: Avoid hitting OOM during preallocation of memory\n PM QoS: Correct pr_debug() misuse and improve parameter checks\n PM: Prevent waiting forever on asynchronous resume after failing suspend\n" }, { "commit": "6715045ddc7472a22be5e49d4047d2d89b391f45", "tree": "d9a48095e915407f6d54db29cfce44c201ae9cef", "parents": [ "0109c2c48d062a04685638926a35ed20153fedc8" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Sep 11 20:58:27 2010 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Sep 11 21:03:53 2010 +0200" }, "message": "PM / Hibernate: Avoid hitting OOM during preallocation of memory\n\nThere is a problem in hibernate_preallocate_memory() that it calls\npreallocate_image_memory() with an argument that may be greater than\nthe total number of available non-highmem memory pages. If that\u0027s\nthe case, the OOM condition is guaranteed to trigger, which in turn\ncan cause significant slowdown to occur during hibernation.\n\nTo avoid that, make preallocate_image_memory() adjust its argument\nbefore calling preallocate_image_pages(), so that the total number of\nsaveable non-highem pages left is not less than the minimum size of\na hibernation image. Change hibernate_preallocate_memory() to try to\nallocate from highmem if the number of pages allocated by\npreallocate_image_memory() is too low.\n\nModify free_unnecessary_pages() to take all possible memory\nallocation patterns into account.\n\nReported-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nTested-by: M. Vefa Bicakci \u003cbicave@superonline.com\u003e\n" }, { "commit": "aad1830e6b978f5d90e5d81d071e1752f526f732", "tree": "af5ba1a5ce1574201e4b4da0366a19a4149e0f8c", "parents": [ "3e6dce76d99b328716b43929b9195adfee1de00c", "55496c896b8a695140045099d4e0175cf09d4eae" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 11 07:59:49 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 11 07:59:49 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 x86, tsc: Fix a preemption leak in restore_sched_clock_state()\n sched: Move sched_avg_update() to update_cpu_load()\n" }, { "commit": "0109c2c48d062a04685638926a35ed20153fedc8", "tree": "8e86dfb97b555845e99d379af6d716d5fb0ecb10", "parents": [ "152e1d592071c8b312bb898bc1118b64e4aea535" ], "author": { "name": "mark gross", "email": "markgross@thegnar.org", "time": "Thu Sep 09 23:20:09 2010 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sat Sep 11 00:53:05 2010 +0200" }, "message": "PM QoS: Correct pr_debug() misuse and improve parameter checks\n\nCorrect some pr_debug() misuse and add a stronger parameter check to\npm_qos_write() for the ASCII hex value case. Thanks to Dan Carpenter\nfor pointing out the problem!\n\nSigned-off-by: mark gross \u003cmarkgross@thegnar.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "27c379f7f89a4d558c685b5d89b5ba2fe79ae701", "tree": "206a00ef1cddaa7f5307b0394f24858f3be5f493", "parents": [ "df423dc7f2a801b9a45d7c501a8eb5c529455ea1" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Fri Sep 10 13:47:29 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 10 16:48:40 2010 +0200" }, "message": "generic-ipi: Fix deadlock in __smp_call_function_single\n\nJust got my 6 way machine to a state where cpu 0 is in an\nendless loop within __smp_call_function_single.\nAll other cpus are idle.\n\nThe call trace on cpu 0 looks like this:\n\n __smp_call_function_single\n scheduler_tick\n update_process_times\n tick_sched_timer\n __run_hrtimer\n hrtimer_interrupt\n clock_comparator_work\n do_extint\n ext_int_handler\n ----\u003e timer irq\n cpu_idle\n\n__smp_call_function_single() got called from nohz_balancer_kick()\n(inlined) with the remote cpu being 1, wait being 0 and the per\ncpu variable remote_sched_softirq_cb (call_single_data) of the\ncurrent cpu (0).\n\nThen it loops forever when it tries to grab the lock of the\ncall_single_data, since it is already locked and enqueued on cpu 0.\n\nMy theory how this could have happened: for some reason the\nscheduler decided to call __smp_call_function_single() on it\u0027s own\ncpu, and sends an IPI to itself. The interrupt stays pending\nsince IRQs are disabled. If then the hypervisor schedules the\ncpu away it might happen that upon rescheduling both the IPI and\nthe timer IRQ are pending. If then interrupts are enabled again\nit depends which one gets scheduled first.\nIf the timer interrupt gets delivered first we end up with the\nlocal deadlock as seen in the calltrace above.\n\nLet\u0027s make __smp_call_function_single() check if the target cpu is\nthe current cpu and execute the function immediately just like\nsmp_call_function_single does. That should prevent at least the\nscenario described here.\n\nIt might also be that the scheduler is not supposed to call\n__smp_call_function_single with the remote cpu being the current\ncpu, but that is a different issue.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\nCc: Venkatesh Pallipadi \u003cvenki@google.com\u003e\nCc: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nLKML-Reference: \u003c20100910114729.GB2827@osiris.boeblingen.de.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f2955b490b249ca56e465fd32cc355f84aedf8bd", "tree": "401faf98c61f4a0a65703644277521a10da98eec", "parents": [ "3d96406c7da1ed5811ea52a3b0905f4f0e295376", "9efdda310cb26bdc28429cb831c3ec5fa270feb7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 10 07:31:24 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 10 07:31:24 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n tracing: t_start: reset FTRACE_ITER_HASH in case of seek/pread\n perf symbols: Fix multiple initialization of symbol system\n perf: Fix CPU hotplug\n perf, trace: Fix module leak\n tracing/kprobe: Fix handling of C-unlike argument names\n tracing/kprobes: Fix handling of argument names\n perf probe: Fix handling of arguments names\n perf probe: Fix return probe support\n tracing/kprobe: Fix a memory leak in error case\n tracing: Do not allow llseek to set_ftrace_filter\n" }, { "commit": "df09162550fbb53354f0c88e85b5d0e6129ee9cc", "tree": "e8ba6014c442cf72d587948733f8c29e0d330925", "parents": [ "5e11637e2c929e34dcc0fbbfb48bdb638937701a" ], "author": { "name": "Chris Wright", "email": "chrisw@sous-sol.org", "time": "Thu Sep 09 16:34:59 2010 -0700" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Thu Sep 09 22:43:49 2010 -0400" }, "message": "tracing: t_start: reset FTRACE_ITER_HASH in case of seek/pread\n\nBe sure to avoid entering t_show() with FTRACE_ITER_HASH set without\nhaving properly started the iterator to iterate the hash. This case is\ndegenerate and, as discovered by Robert Swiecki, can cause t_hash_show()\nto misuse a pointer. This causes a NULL ptr deref with possible security\nimplications. Tracked as CVE-2010-3079.\n\nCc: Robert Swiecki \u003cswiecki@google.com\u003e\nCc: Eugene Teo \u003ceugene@redhat.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Chris Wright \u003cchrisw@sous-sol.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "910321ea817a202ff70fac666e37e2c8e2f88823", "tree": "aaead29e7797986e2b804746b565bb5d05117c54", "parents": [ "ac8456d6f9a3011c824176bd6084d39e5f70a382" ], "author": { "name": "Hugh Dickins", "email": "hughd@google.com", "time": "Thu Sep 09 16:38:07 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 09 18:57:25 2010 -0700" }, "message": "swap: revert special hibernation allocation\n\nPlease revert 2.6.36-rc commit d2997b1042ec150616c1963b5e5e919ffd0b0ebf\n\"hibernation: freeze swap at hibernation\". It complicated matters by\nadding a second swap allocation path, just for hibernation; without in any\nway fixing the issue that it was intended to address - page reclaim after\nfixing the hibernation image might free swap from a page already imaged as\nswapcache, letting its swap be reallocated to store a different page of\nthe image: resulting in data corruption if the imaged page were freed as\nclean then swapped back in. Pages freed to si-\u003eswap_map were still in\ndanger of being reallocated by the alternative allocation path.\n\nI guess it inadvertently fixed slow SSD swap allocation for hibernation,\nas reported by Nigel Cunningham: by missing out the discards that occur on\nthe usual swap allocation path; but that was unintentional, and needs a\nseparate fix.\n\nSigned-off-by: Hugh Dickins \u003chughd@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nCc: Ondrej Zary \u003clinux@rainbow-software.org\u003e\nCc: Andrea Gelmini \u003candrea.gelmini@gmail.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nCc: Nigel Cunningham \u003cnigel@tuxonice.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1c24de60e50fb19b94d94225458da17c720f0729", "tree": "a225907a1b341f629037805f086add137e176f4a", "parents": [ "94131e174fedd9f3f9bb148cee4be12f2d46d68e" ], "author": { "name": "Jerome Marchand", "email": "jmarchan@redhat.com", "time": "Thu Sep 09 16:37:59 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 09 18:57:24 2010 -0700" }, "message": "kernel/groups.c: fix integer overflow in groups_search\n\ngid_t is a unsigned int. If group_info contains a gid greater than\nMAX_INT, groups_search() function may look on the wrong side of the search\ntree.\n\nThis solves some unfair \"permission denied\" problems.\n\nSigned-off-by: Jerome Marchand \u003cjmarchan@redhat.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": "31583bb0cf6cc40f2a468a4d2f3b9cbefd24f891", "tree": "1c9ff4ff83ef80fe0b9b5d6fa7ec9af1ebbc2209", "parents": [ "ed430fec756ad65f7cfba24f8ad17c3d5a403290" ], "author": { "name": "Michael S. Tsirkin", "email": "mst@redhat.com", "time": "Thu Sep 09 16:37:37 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 09 18:57:23 2010 -0700" }, "message": "cgroups: fix API thinko\n\nAdd cgroup_attach_task_all()\n\nThe existing cgroup_attach_task_current_cg() API is called by a thread to\nattach another thread to all of its cgroups; this is unsuitable for cases\nwhere a privileged task wants to attach itself to the cgroups of a less\nprivileged one, since the call must be made from the context of the target\ntask.\n\nThis patch adds a more generic cgroup_attach_task_all() API that allows\nboth the source task and to-be-moved task to be specified.\ncgroup_attach_task_current_cg() becomes a specialization of the more\ngeneric new function.\n\n[menage@google.com: rewrote changelog]\n[akpm@linux-foundation.org: address reviewer comments]\nSigned-off-by: Michael S. Tsirkin \u003cmst@redhat.com\u003e\nTested-by: Alex Williamson \u003calex.williamson@redhat.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Ben Blum \u003cbblum@google.com\u003e\nCc: Sridhar Samudrala \u003csri@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "85a0fdfd0f967507f3903e8419bc7e408f5a59de", "tree": "2b430fc9689701f8b6da8bd9fa83feda8b6d972c", "parents": [ "2f327dad14aa8bc939a4f0a2d3fdcf64a2d8c09e" ], "author": { "name": "Peter Oberparleiter", "email": "oberpar@linux.vnet.ibm.com", "time": "Thu Sep 09 16:37:35 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 09 18:57:23 2010 -0700" }, "message": "gcov: fix null-pointer dereference for certain module types\n\nThe gcov-kernel infrastructure expects that each object file is loaded\nonly once. This may not be true, e.g. when loading multiple kernel\nmodules which are linked to the same object file. As a result, loading\nsuch kernel modules will result in incorrect gcov results while unloading\nwill cause a null-pointer dereference.\n\nThis patch fixes these problems by changing the gcov-kernel infrastructure\nso that multiple profiling data sets can be associated with one debugfs\nentry. It applies to 2.6.36-rc1.\n\nSigned-off-by: Peter Oberparleiter \u003coberpar@linux.vnet.ibm.com\u003e\nReported-by: Werner Spies \u003cwerner.spies@thalesgroup.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": "da2b71edd8a7db44fe1746261410a981f3e03632", "tree": "4c84c8761590138cffb244eb54fb29263175a6cd", "parents": [ "d56557af19867edb8c0e96f8e26399698a08857f" ], "author": { "name": "Suresh Siddha", "email": "suresh.b.siddha@intel.com", "time": "Mon Aug 23 13:42:51 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:39:33 2010 +0200" }, "message": "sched: Move sched_avg_update() to update_cpu_load()\n\nCurrently sched_avg_update() (which updates rt_avg stats in the rq)\nis getting called from scale_rt_power() (in the load balance context)\nwhich doesn\u0027t take rq-\u003elock.\n\nFix it by moving the sched_avg_update() to more appropriate\nupdate_cpu_load() where the CFS load gets updated as well.\n\nSigned-off-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c1282596171.2694.3.camel@sbsiddha-MOBL3\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5e11637e2c929e34dcc0fbbfb48bdb638937701a", "tree": "ed782662362ee0ea5ac888588664aeb97e6f1312", "parents": [ "9cb627d5f38830ca19aa0dca52d1d3a633018bf7" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Jun 11 13:35:08 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:38:52 2010 +0200" }, "message": "perf: Fix CPU hotplug\n\nSince we have UP_PREPARE, we should also have UP_CANCELED.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9cb627d5f38830ca19aa0dca52d1d3a633018bf7", "tree": "38138b59d5b54c09314a01172586aa653cc3b528", "parents": [ "da34634fd39958725310d2c30c9b4543945f968b" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Wed Sep 01 12:58:43 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Sep 09 20:38:51 2010 +0200" }, "message": "perf, trace: Fix module leak\n\nCommit 1c024eca (perf, trace: Optimize tracepoints by using\nper-tracepoint-per-cpu hlist to track events) caused a module\nrefcount leak.\n\nReported-And-Tested-by: Avi Kivity \u003cavi@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003c4C7E1F12.8030304@cn.fujitsu.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "79637a41e466bbe7dfe394bac3c9d86a92fd55b1", "tree": "0ee720d20572a3e1f901f78331b57612984f1e2e", "parents": [ "899edae615c806f78880077bd46f04d7f23ae6e6", "b3bd3de66f60df4c9a2076e2886a622458929056" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 08 11:13:42 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 08 11:13:42 2010 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n gcc-4.6: kernel/*: Fix unused but set warnings\n mutex: Fix annotations to include it in kernel-locking docbook\n pid: make setpgid() system call use RCU read-side critical section\n MAINTAINERS: Add RCU\u0027s public git tree\n" }, { "commit": "899edae615c806f78880077bd46f04d7f23ae6e6", "tree": "ae3918d9947a8c4811e86217fc77b3927784492d", "parents": [ "c8c727db413e18414dc6ebc2cc4f18f390763e17", "4177c42a6301a34c20038ec2771a33dcc30bb338" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 08 11:13:16 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 08 11:13:16 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf, x86: Try to handle unknown nmis with an enabled PMU\n perf, x86: Fix handle_irq return values\n perf, x86: Fix accidentally ack\u0027ing a second event on intel perf counter\n oprofile, x86: fix init_sysfs() function stub\n lockup_detector: Sync touch_*_watchdog back to old semantics\n tracing: Fix a race in function profile\n oprofile, x86: fix init_sysfs error handling\n perf_events: Fix time tracking for events with pid !\u003d -1 and cpu !\u003d -1\n perf: Initialize callchains roots\u0027s childen hits\n oprofile: fix crash when accessing freed task structs\n" }, { "commit": "da34634fd39958725310d2c30c9b4543945f968b", "tree": "034fa85a0f8ca36fe0e3caa8803b4a6fbe3b9319", "parents": [ "aba91595cfcebd193425e20aabc407531526a1c5" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Fri Aug 27 20:39:12 2010 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Sep 08 11:47:19 2010 -0300" }, "message": "tracing/kprobe: Fix handling of C-unlike argument names\n\nCheck the argument name whether it is invalid (not C-like symbol name). This\nmakes event format simple.\n\nReported-by: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nLKML-Reference: \u003c20100827113912.22882.62313.stgit@ltc236.sdl.hitachi.co.jp\u003e\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "aba91595cfcebd193425e20aabc407531526a1c5", "tree": "5473ed5aebc93bb0aea03a17d7ed968ca0e95dce", "parents": [ "367e94c10092469c896a226a77ef13cf6da757e4" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Fri Aug 27 20:39:06 2010 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Sep 08 11:47:19 2010 -0300" }, "message": "tracing/kprobes: Fix handling of argument names\n\nSet \"argN\" name for each argument automatically if it has no specified name.\nSince dynamic trace event(kprobe_events) accepts special characters for its\nargument, its format can show those special characters (e.g. \u0027$\u0027, \u0027%\u0027, \u0027+\u0027).\nHowever, perf can\u0027t parse those format because of the character (especially\n\u0027%\u0027) mess up the format. This sets \"argX\" name for those arguments if user\nomitted the argument names.\n\nE.g.\n # echo \u0027p do_fork %ax IP\u003d%ip $stack\u0027 \u003e tracing/kprobe_events\n # cat tracing/kprobe_events\n p:kprobes/p_do_fork_0 do_fork arg1\u003d%ax IP\u003d%ip arg3\u003d$stack\n\nReported-by: Srikar Dronamraju \u003csrikar@linux.vnet.ibm.com\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nLKML-Reference: \u003c20100827113906.22882.59312.stgit@ltc236.sdl.hitachi.co.jp\u003e\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "61a527362234ac3352a91ac67c50c6f7cd248eb1", "tree": "6d3ed6390f61d7819c11b459d86d5dac76ca7f0c", "parents": [ "9c55cb12c1c172e2d51e85fbb5a4796ca86b77e7" ], "author": { "name": "Masami Hiramatsu", "email": "masami.hiramatsu.pt@hitachi.com", "time": "Fri Aug 27 20:38:46 2010 +0900" }, "committer": { "name": "Arnaldo Carvalho de Melo", "email": "acme@redhat.com", "time": "Wed Sep 08 11:47:18 2010 -0300" }, "message": "tracing/kprobe: Fix a memory leak in error case\n\nFix a memory leak which happens when a field name conflicts with others. In\nerror case, free_trace_probe() will free all arguments until nr_args, so this\nincrements nr_args the begining of the loop instead of the end.\n\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nCc: Frederic Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Mathieu Desnoyers \u003cmathieu.desnoyers@efficios.com\u003e\nLKML-Reference: \u003c20100827113846.22882.12670.stgit@ltc236.sdl.hitachi.co.jp\u003e\nSigned-off-by: Masami Hiramatsu \u003cmasami.hiramatsu.pt@hitachi.com\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\n" }, { "commit": "9c55cb12c1c172e2d51e85fbb5a4796ca86b77e7", "tree": "0f86d1e27fbfc31cba108e71643d686315468db9", "parents": [ "4177c42a6301a34c20038ec2771a33dcc30bb338" ], "author": { "name": "Steven Rostedt", "email": "srostedt@redhat.com", "time": "Wed Sep 08 11:20:37 2010 -0400" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Wed Sep 08 12:08:01 2010 -0400" }, "message": "tracing: Do not allow llseek to set_ftrace_filter\n\nReading the file set_ftrace_filter does three things.\n\n1) shows whether or not filters are set for the function tracer\n2) shows what functions are set for the function tracer\n3) shows what triggers are set on any functions\n\n3 is independent from 1 and 2.\n\nThe way this file currently works is that it is a state machine,\nand as you read it, it may change state. But this assumption breaks\nwhen you use lseek() on the file. The state machine gets out of sync\nand the t_show() may use the wrong pointer and cause a kernel oops.\n\nLuckily, this will only kill the app that does the lseek, but the app\ndies while holding a mutex. This prevents anyone else from using the\nset_ftrace_filter file (or any other function tracing file for that matter).\n\nA real fix for this is to rewrite the code, but that is too much for\na -rc release or stable. This patch simply disables llseek on the\nset_ftrace_filter() file for now, and we can do the proper fix for the\nnext major release.\n\nReported-by: Robert Swiecki \u003cswiecki@google.com\u003e\nCc: Chris Wright \u003cchrisw@sous-sol.org\u003e\nCc: Tavis Ormandy \u003ctaviso@google.com\u003e\nCc: Eugene Teo \u003ceugene@redhat.com\u003e\nCc: vendor-sec@lst.de\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "cd4d4fc4137502f88ee871fc015a934dc28535e3", "tree": "09dfa0627996ca80d0fcc936b6fbd5080ee6e9d7", "parents": [ "608307e6de2631e37f55f106a7cbbc560cb12751", "9c37547ab62f88aac3e1e3c2065b611f811de9b5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 07 14:08:17 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 07 14:08:17 2010 -0700" }, "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: use zalloc_cpumask_var() for gcwq-\u003emayday_mask\n workqueue: fix GCWQ_DISASSOCIATED initialization\n workqueue: Add a workqueue chapter to the tracepoint docbook\n workqueue: fix cwq-\u003enr_active underflow\n workqueue: improve destroy_workqueue() debuggability\n workqueue: mark lock acquisition on worker_maybe_bind_and_lock()\n workqueue: annotate lock context change\n workqueue: free rescuer on destroy_workqueue\n" }, { "commit": "b3bd3de66f60df4c9a2076e2886a622458929056", "tree": "d0b1fa885acfa96536cf74f487acb28d63442b83", "parents": [ "ef5dc121d5a0bb1fa477c5395277259f07d318a3" ], "author": { "name": "Andi Kleen", "email": "andi@firstfloor.org", "time": "Tue Aug 10 14:17:51 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Sep 05 14:36:58 2010 +0200" }, "message": "gcc-4.6: kernel/*: Fix unused but set warnings\n\nNo real bugs I believe, just some dead code.\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: andi@firstfloor.org\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ef5dc121d5a0bb1fa477c5395277259f07d318a3", "tree": "5af1d24406aa014eed72f07097316ba6f7d0d04f", "parents": [ "950eaaca681c44aab87a46225c9e44f902c080aa" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Thu Sep 02 15:48:16 2010 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Sep 03 08:19:51 2010 +0200" }, "message": "mutex: Fix annotations to include it in kernel-locking docbook\n\nFix kernel-doc notation in linux/mutex.h and kernel/mutex.c,\nthen add these 2 files to the kernel-locking docbook as the\nMutex API reference chapter.\n\nAdd one API function to mutex-design.txt and correct a typo in\nthat file.\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nLKML-Reference: \u003c20100902154816.6cc2f9ad.randy.dunlap@oracle.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "68d3f1d810500e8b975bdf0b20dd83d060076b4b", "tree": "68d07e9d165aa9fde390dfa5694bb58aa63adb0d", "parents": [ "3aaba20f26f58843e8f20611e5c0b1c06954310f" ], "author": { "name": "Don Zickus", "email": "dzickus@redhat.com", "time": "Tue Aug 31 23:00:07 2010 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Sep 01 10:02:28 2010 +0200" }, "message": "lockup_detector: Sync touch_*_watchdog back to old semantics\n\nDuring my rewrite, the semantics of touch_nmi_watchdog and\ntouch_softlockup_watchdog changed enough to break some drivers\n(mostly over preemptable regions).\n\nThese are cases where long delays on one CPU (due to\nprint_delay for example) can cause long delays on other\nCPUs - so we must \u0027touch\u0027 the nmi_watchdog flag of those\nother CPUs as well.\n\nThis change brings those touch_*_watchdog() functions back in line\nwith to how they used to work.\n\nSigned-off-by: Don Zickus \u003cdzickus@redhat.com\u003e\nAcked-by: Cyrill Gorcunov \u003cgorcunov@openvz.org\u003e\nCc: peterz@infradead.org\nCc: fweisbec@gmail.com\nLKML-Reference: \u003c1283310009-22168-2-git-send-email-dzickus@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "950eaaca681c44aab87a46225c9e44f902c080aa", "tree": "5f0290db3f84b7f2929ae53729d74a59dc5bb5e9", "parents": [ "6cb6cbeaa9d6573c674842b9471c0467967aae99" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Aug 31 17:00:18 2010 -0700" }, "committer": { "name": "Paul E. McKenney", "email": "paulmck@linux.vnet.ibm.com", "time": "Tue Aug 31 17:00:18 2010 -0700" }, "message": "pid: make setpgid() system call use RCU read-side critical section\n\n[ 23.584719]\n[ 23.584720] \u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n[ 23.585059] [ INFO: suspicious rcu_dereference_check() usage. ]\n[ 23.585176] ---------------------------------------------------\n[ 23.585176] kernel/pid.c:419 invoked rcu_dereference_check() without protection!\n[ 23.585176]\n[ 23.585176] other info that might help us debug this:\n[ 23.585176]\n[ 23.585176]\n[ 23.585176] rcu_scheduler_active \u003d 1, debug_locks \u003d 1\n[ 23.585176] 1 lock held by rc.sysinit/728:\n[ 23.585176] #0: (tasklist_lock){.+.+..}, at: [\u003cffffffff8104771f\u003e] sys_setpgid+0x5f/0x193\n[ 23.585176]\n[ 23.585176] stack backtrace:\n[ 23.585176] Pid: 728, comm: rc.sysinit Not tainted 2.6.36-rc2 #2\n[ 23.585176] Call Trace:\n[ 23.585176] [\u003cffffffff8105b436\u003e] lockdep_rcu_dereference+0x99/0xa2\n[ 23.585176] [\u003cffffffff8104c324\u003e] find_task_by_pid_ns+0x50/0x6a\n[ 23.585176] [\u003cffffffff8104c35b\u003e] find_task_by_vpid+0x1d/0x1f\n[ 23.585176] [\u003cffffffff81047727\u003e] sys_setpgid+0x67/0x193\n[ 23.585176] [\u003cffffffff810029eb\u003e] system_call_fastpath+0x16/0x1b\n[ 24.959669] type\u003d1400 audit(1282938522.956:4): avc: denied { module_request } for pid\u003d766 comm\u003d\"hwclock\" kmod\u003d\"char-major-10-135\" scontext\u003dsystem_u:system_r:hwclock_t:s0 tcontext\u003dsystem_u:system_r:kernel_t:s0 tclas\n\nIt turns out that the setpgid() system call fails to enter an RCU\nread-side critical section before doing a PID-to-task_struct translation.\nThis commit therefore does rcu_read_lock() before the translation, and\nalso does rcu_read_unlock() after the last use of the returned pointer.\n\nReported-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Paul E. McKenney \u003cpaulmck@linux.vnet.ibm.com\u003e\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "3aaba20f26f58843e8f20611e5c0b1c06954310f", "tree": "ad15d7aa21af465ddf6091eb490d84312089f245", "parents": [ "fa66f07aa1f0950e1dc78b7ab39728b3f8aa77a1" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Mon Aug 23 16:50:12 2010 +0800" }, "committer": { "name": "Steven Rostedt", "email": "rostedt@goodmis.org", "time": "Tue Aug 31 16:46:23 2010 -0400" }, "message": "tracing: Fix a race in function profile\n\nWhile we are reading trace_stat/functionX and someone just\ndisabled function_profile at that time, we can trigger this:\n\n\tdivide error: 0000 [#1] PREEMPT SMP\n\t...\n\tEIP is at function_stat_show+0x90/0x230\n\t...\n\nThis fix just takes the ftrace_profile_lock and checks if\nrec-\u003ecounter is 0. If it\u0027s 0, we know the profile buffer\nhas been reset.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: stable@kernel.org\nLKML-Reference: \u003c4C723644.4040708@cn.fujitsu.com\u003e\nSigned-off-by: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "9c37547ab62f88aac3e1e3c2065b611f811de9b5", "tree": "2a9c3655e25c93b4c3ce49c575d5d908045ebdd4", "parents": [ "477a3c33d1efa0342a74bd02da2e049191993e2c" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 31 11:18:34 2010 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 31 11:18:34 2010 +0200" }, "message": "workqueue: use zalloc_cpumask_var() for gcwq-\u003emayday_mask\n\nalloc_mayday_mask() was using alloc_cpumask_var() making\ngcwq-\u003emayday_mask contain garbage after initialization on\nCONFIG_CPUMASK_OFFSTACK\u003dy configurations. This combined with the\npreviously fixed GCWQ_DISASSOCIATED initialization bug could make\nrescuers fall into infinite loop trying to bind to an offline cpu.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: CAI Qian \u003ccaiqian@redhat.com\u003e\n" }, { "commit": "477a3c33d1efa0342a74bd02da2e049191993e2c", "tree": "03d4ae1338f47016fbad6ff131007e009959b4a8", "parents": [ "7c38875a0d0a9b90eee66be79e36995c86acc70c" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 31 10:54:35 2010 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 31 10:54:35 2010 +0200" }, "message": "workqueue: fix GCWQ_DISASSOCIATED initialization\n\ninit_workqueues() incorrectly marks workqueues for all possible CPUs\nassociated. Combined with mayday_mask initialization bug, this can\nmake rescuers keep trying to bind to an offline gcwq indefinitely.\nFix init_workqueues() such that only online CPUs have their gcwqs have\nGCWQ_DISASSOCIATED cleared.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: CAI Qian \u003ccaiqian@redhat.com\u003e\n" }, { "commit": "fa66f07aa1f0950e1dc78b7ab39728b3f8aa77a1", "tree": "4ad4612c2fc07f159e192fae9145f9d87a697592", "parents": [ "5225c45899e872383ca39f5533d28ec63c54b39e" ], "author": { "name": "Stephane Eranian", "email": "eranian@google.com", "time": "Thu Aug 26 16:40:01 2010 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 30 12:16:55 2010 +0200" }, "message": "perf_events: Fix time tracking for events with pid !\u003d -1 and cpu !\u003d -1\n\nPer-thread events with a cpu filter, i.e., cpu !\u003d -1, were not\nreporting correct timings when the thread never ran on the\nmonitored cpu. The time enabled was reported as a negative\nvalue.\n\nThis patch fixes the problem by updating tstamp_stopped,\ntstamp_running in event_sched_out() for events with filters and\nwhich are marked as INACTIVE.\n\nThe function group_sched_out() is modified to systematically\ncall into event_sched_out() to avoid duplicating the timing\nadjustment code twice.\n\nWith the patch, I now get:\n\n$ task_cpu -i -e unhalted_core_cycles,unhalted_core_cycles\nnoploop 2 noploop for 2 seconds\nCPU0 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\nCPU0 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\n\nCPU1 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\nCPU1 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\n\nCPU2 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\nCPU2 0\t\t unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d0)\n\nCPU3 4,747,990,931 unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d1,991,136,594)\nCPU3 4,747,990,931 unhalted_core_cycles (ena\u003d1,991,136,594, run\u003d1,991,136,594)\n\nSigned-off-by: Stephane Eranian \u003ceranian@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: paulus@samba.org\nCc: davem@davemloft.net\nCc: fweisbec@gmail.com\nCc: perfmon2-devel@lists.sf.net\nCc: eranian@google.com\nLKML-Reference: \u003c4c76802d.aae9d80a.115d.70fe@mx.google.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6f4dbeca1a5bac4552d49d9e7b774da9f6625e74", "tree": "15d1997a50a971b83c9c577299cbbd414fe512c4", "parents": [ "2547d1d20f3a252567f974de8ce1c572a0815d5a", "25cc69ec34a563e943e85b3b68a79a8aac7f076d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 28 14:06:19 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 28 14:06:19 2010 -0700" }, "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 QoS: Fix inline documentation.\n PM QoS: Fix kzalloc() parameters swapped in pm_qos_power_open()\n" }, { "commit": "2637d139fb9a1bd428a003b7671fda40a034854f", "tree": "7983e0776c95990a545f83275682614e16a71167", "parents": [ "494e2fbe1f8bee22ab2070bd6f4d1a24f7d5fd8b", "288933c02b440621d9c8e7bb5f232cfb7bdef7df" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 28 13:55:31 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 28 13:55:31 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:\n Input: pxa27x_keypad - remove input_free_device() in pxa27x_keypad_remove()\n Input: mousedev - fix regression of inverting axes\n Input: uinput - add devname alias to allow module on-demand load\n Input: hil_kbd - fix compile error\n USB: drop tty argument from usb_serial_handle_sysrq_char()\n Input: sysrq - drop tty argument form handle_sysrq()\n Input: sysrq - drop tty argument from sysrq ops handlers\n" }, { "commit": "25cc69ec34a563e943e85b3b68a79a8aac7f076d", "tree": "57b2a6b2fe5e4df3461bf6335d7b575e283178ca", "parents": [ "bac1e74dba9755128748b872a0f304dad4d198c6" ], "author": { "name": "Saravana Kannan", "email": "skannan@codeaurora.org", "time": "Thu Aug 26 20:18:43 2010 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Thu Aug 26 20:18:43 2010 +0200" }, "message": "PM QoS: Fix inline documentation.\n\nFix the pm_qos_add_request() kerneldoc comment that doesn\u0027t reflect\nthe behavior of the function after the last PM QoS update.\n\nSigned-off-by: Saravana Kannan \u003cskannan@codeaurora.org\u003e\nAcked-by: mark gross \u003cmarkgross@thegnar.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "d4348c678977c7093438bbbf2067c49396ae941b", "tree": "c60752bc177c3297e28e62f759ddd5816fa52e19", "parents": [ "37822188ef7bb41ae47b84ae283e6ac93cdafb9c", "8d330919927ea31fa083b5a80084dc991da813a0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 25 10:50:07 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 25 10:50:07 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n perf, x86, Pentium4: Clear the P4_CCCR_FORCE_OVF flag\n tracing/trace_stack: Fix stack trace on ppc64\n" }, { "commit": "5e686019df425a4fd8003ce7f6eaccbe537331d8", "tree": "cc78762bc0fb471562ca1b5f745834a983020623", "parents": [ "e09b4e9a8d15dce04bedf1b860abeec00de31aad", "cd7240c0b900eb6d690ccee088a6c9b46dae815a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 25 08:40:56 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 25 08:40:56 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 x86, tsc, sched: Recompute cyc2ns_offset\u0027s during resume from sleep states\n sched: Fix rq-\u003eclock synchronization when migrating tasks\n" }, { "commit": "151772dbfad4dbe81721e40f9b3d588ea77bb7aa", "tree": "fea47f977d73063843d0e91e2a139c4f3fb71d6c", "parents": [ "502adf5778f4151dcba3f64dd6ed322151f3712c" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Wed Aug 25 11:32:38 2010 +1000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Aug 25 13:08:48 2010 +0200" }, "message": "tracing/trace_stack: Fix stack trace on ppc64\n\nsave_stack_trace() stores the instruction pointer, not the\nfunction descriptor. On ppc64 the trace stack code currently\ndereferences the instruction pointer and shows 8 bytes of\ninstructions in our backtraces:\n\n # cat /sys/kernel/debug/tracing/stack_trace\n Depth Size Location (26 entries)\n ----- ---- --------\n 0) 5424 112 0x6000000048000004\n 1) 5312 160 0x60000000ebad01b0\n 2) 5152 160 0x2c23000041c20030\n 3) 4992 240 0x600000007c781b79\n 4) 4752 160 0xe84100284800000c\n 5) 4592 192 0x600000002fa30000\n 6) 4400 256 0x7f1800347b7407e0\n 7) 4144 208 0xe89f0108f87f0070\n 8) 3936 272 0xe84100282fa30000\n\nSince we aren\u0027t dealing with function descriptors, use %pS\ninstead of %pF to fix it:\n\n # cat /sys/kernel/debug/tracing/stack_trace\n Depth Size Location (26 entries)\n ----- ---- --------\n 0) 5424 112 ftrace_call+0x4/0x8\n 1) 5312 160 .current_io_context+0x28/0x74\n 2) 5152 160 .get_io_context+0x48/0xa0\n 3) 4992 240 .cfq_set_request+0x94/0x4c4\n 4) 4752 160 .elv_set_request+0x60/0x84\n 5) 4592 192 .get_request+0x2d4/0x468\n 6) 4400 256 .get_request_wait+0x7c/0x258\n 7) 4144 208 .__make_request+0x49c/0x610\n 8) 3936 272 .generic_make_request+0x390/0x434\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nCc: rostedt@goodmis.org\nCc: fweisbec@gmail.com\nLKML-Reference: \u003c20100825013238.GE28360@kryten\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8a2e8e5dec7e29c56a46ba176c664ab6a3d04118", "tree": "57da96451bead4986dfcd82aadf47ba2c05745ac", "parents": [ "e41e704bc4f49057fc68b643108366e6e6781aa3" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Aug 25 10:33:56 2010 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Aug 25 10:33:56 2010 +0200" }, "message": "workqueue: fix cwq-\u003enr_active underflow\n\ncwq-\u003enr_active is used to keep track of how many work items are active\nfor the cpu workqueue, where \u0027active\u0027 is defined as either pending on\nglobal worklist or executing. This is used to implement the\nmax_active limit and workqueue freezing. If a work item is queued\nafter nr_active has already reached max_active, the work item doesn\u0027t\nincrement nr_active and is put on the delayed queue and gets activated\nlater as previous active work items retire.\n\ntry_to_grab_pending() which is used in the cancellation path\nunconditionally decremented nr_active whether the work item being\ncancelled is currently active or delayed, so cancelling a delayed work\nitem makes nr_active underflow. This breaks max_active enforcement\nand triggers BUG_ON() in destroy_workqueue() later on.\n\nThis patch fixes this bug by adding a flag WORK_STRUCT_DELAYED, which\nis set while a work item in on the delayed list and making\ntry_to_grab_pending() decrement nr_active iff the work item is\ncurrently active.\n\nThe addition of the flag enlarges cwq alignment to 256 bytes which is\ngetting a bit too large. It\u0027s scheduled to be reduced back to 128\nbytes by merging WORK_STRUCT_PENDING and WORK_STRUCT_CWQ in the next\ndevel cycle.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nReported-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\n" }, { "commit": "502adf5778f4151dcba3f64dd6ed322151f3712c", "tree": "ad14adb37dedaefabdaf93b08ab9d32bc140ed81", "parents": [ "3b6c5507a69861e80c26f21d04601c674cbeec3d", "c6db67cda735d8ace5f19c3831240e1408679790" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 24 12:21:49 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 24 12:21:49 2010 -0700" }, "message": "Merge branch \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027perf-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n watchdog: Don\u0027t throttle the watchdog\n tracing: Fix timer tracing\n" }, { "commit": "3b6c5507a69861e80c26f21d04601c674cbeec3d", "tree": "339c0761121f5a20d0573c3af3177af87e00e09f", "parents": [ "8ca3eb08097f6839b2206e2242db4179aee3cfb3", "9d0f4dcc5c4d1c5dd01172172684a45b5f49d740" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 24 12:21:02 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 24 12:21:02 2010 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n mutex: Improve the scalability of optimistic spinning\n" }, { "commit": "bac1e74dba9755128748b872a0f304dad4d198c6", "tree": "68ffa67da67b1d7f06b4ff1cc7a705d3a5842386", "parents": [ "f4e385ccfc10f44364101b126d1ac52b4c806f1d" ], "author": { "name": "David Alan Gilbert", "email": "linux@treblig.org", "time": "Tue Aug 24 20:22:18 2010 +0200" }, "committer": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Aug 24 20:22:18 2010 +0200" }, "message": "PM QoS: Fix kzalloc() parameters swapped in pm_qos_power_open()\n\nsparse spotted that the kzalloc() in pm_qos_power_open() in the\ncurrent Linus\u0027 git tree had its parameters swapped. Fix this.\n\nSigned-off-by: David Alan Gilbert \u003clinux@treblig.org\u003e\nAcked-by: mark gross \u003cmarkgross@thegnar.org\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\n" }, { "commit": "e41e704bc4f49057fc68b643108366e6e6781aa3", "tree": "8cc85208970ba0c9adf533903243e28c506f23ae", "parents": [ "972fa1c5316d18c8297123e08e9b6930ca34f888" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 24 14:22:47 2010 +0200" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Aug 24 18:01:32 2010 +0200" }, "message": "workqueue: improve destroy_workqueue() debuggability\n\nNow that the worklist is global, having works pending after wq\ndestruction can easily lead to oops and destroy_workqueue() have\nseveral BUG_ON()s to catch these cases. Unfortunately, BUG_ON()\ndoesn\u0027t tell much about how the work became pending after the final\nflush_workqueue().\n\nThis patch adds WQ_DYING which is set before the final flush begins.\nIf a work is requested to be queued on a dying workqueue,\nWARN_ON_ONCE() is triggered and the request is ignored. This clearly\nindicates which caller is trying to queue a work on a dying workqueue\nand keeps the system working in most cases.\n\nLocking rule comment is updated such that the \u0027I\u0027 rule includes\nmodifying the field from destruction path.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "972fa1c5316d18c8297123e08e9b6930ca34f888", "tree": "b96c34cb7ac493a80d959db6b361d2e87e854e06", "parents": [ "06bd6ebffae36d3b105677598c48e8bd0a10b205" ], "author": { "name": "Namhyung Kim", "email": "namhyung@gmail.com", "time": "Sun Aug 22 23:19:43 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 23 11:37:49 2010 +0200" }, "message": "workqueue: mark lock acquisition on worker_maybe_bind_and_lock()\n\nworker_maybe_bind_and_lock() actually grabs gcwq-\u003elock but was missing proper\nannotation. Add it. So this patch will remove following sparse warnings:\n\n kernel/workqueue.c:1214:13: warning: context imbalance in \u0027worker_maybe_bind_and_lock\u0027 - wrong count at exit\n arch/x86/include/asm/irqflags.h:44:9: warning: context imbalance in \u0027worker_rebind_fn\u0027 - unexpected unlock\n kernel/workqueue.c:1991:17: warning: context imbalance in \u0027rescuer_thread\u0027 - unexpected unlock\n\nSigned-off-by: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" }, { "commit": "06bd6ebffae36d3b105677598c48e8bd0a10b205", "tree": "d75a38a50378a3365bf57383297e0fe0372e916a", "parents": [ "8d9df9f0844ed87541453a3ef91bfc9f487053b7" ], "author": { "name": "Namhyung Kim", "email": "namhyung@gmail.com", "time": "Sun Aug 22 23:19:42 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Mon Aug 23 11:37:49 2010 +0200" }, "message": "workqueue: annotate lock context change\n\nSome of internal functions called within gcwq-\u003elock context releases and\nregrabs the lock but were missing proper annotations. Add it.\n\nSigned-off-by: Namhyung Kim \u003cnamhyung@gmail.com\u003e\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\n" } ], "next": "9d0f4dcc5c4d1c5dd01172172684a45b5f49d740" }