)]}' { "log": [ { "commit": "96348852cf8ff5597a39e866838679b3a9a38947", "tree": "a46ec9749b85d15a8312e18c15cfdf33d28c813b", "parents": [ "1c89ac55017f982355c7761e1c912c88c941483d", "c2fc11985db304572322f1dcdcb0f71337315006" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 12 08:49:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 12 08:49:53 2008 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus-2\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask(), fix\n" }, { "commit": "1c89ac55017f982355c7761e1c912c88c941483d", "tree": "6878e95a0572defc725ea58f5a1449db937a5066", "parents": [ "88fa08f67bee1a0c765237bdac106a32872f57d2", "b1b135c8d619cb2c7045d6ee4e48375882518bb5" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 12 08:40:19 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 12 08:40:19 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:\n fix spinlock recursion in hvc_console\n stop_machine: remove unused variable\n modules: extend initcall_debug functionality to the module loader\n export virtio_rng.h\n lguest: use get_user_pages_fast() instead of get_user_pages()\n mm: Make generic weak get_user_pages_fast and EXPORT_GPL it\n lguest: don\u0027t set MAC address for guest unless specified\n" }, { "commit": "c2fc11985db304572322f1dcdcb0f71337315006", "tree": "330196cefd4eb0ad3b4999fb14518a62f0294d93", "parents": [ "23a0ee908cbfba3264d19729c67c22b20fa73886" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Tue Aug 12 18:05:13 2008 +1000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 12 11:21:27 2008 +0200" }, "message": "generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask(), fix\n\n\u003e \u003e Nick Piggin (1):\n\u003e \u003e generic-ipi: fix stack and rcu interaction bug in\n\u003e \u003e smp_call_function_mask()\n\u003e\n\u003e I\u0027m still not 100% sure that I have this patch right... I might have seen\n\u003e a lockup trace implicating the smp call function path... which may have\n\u003e been due to some other problem or a different bug in the new call function\n\u003e code, but if some more people can take a look at it before merging?\n\nOK indeed it did have a couple of bugs. Firstly, I wasn\u0027t freeing the\ndata properly in the alloc \u0026\u0026 wait case. Secondly, I wasn\u0027t resetting\nCSD_FLAG_WAIT in the for each cpu loop (so only the first CPU would\nwait).\n\nAfter those fixes, the patch boots and runs with the kmalloc commented\nout (so it always executes the slowpath).\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ed6d68763b8b589c0ae9d231cbd72bd01f6685c5", "tree": "df2ad85df56c40013eea6f0bd5806d1f94e0b8b7", "parents": [ "59f9415ffb9759e950d775f4c400f747b332cc02" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Thu Jul 31 10:31:02 2008 +0800" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Aug 12 17:52:55 2008 +1000" }, "message": "stop_machine: remove unused variable\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "59f9415ffb9759e950d775f4c400f747b332cc02", "tree": "354544b8cad8ae77a5f960fe601b2a3613a2523a", "parents": [ "4bceba417a795b78a5146e3f85291cb7bb2402ef" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Wed Jul 30 12:49:02 2008 -0700" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Aug 12 17:52:54 2008 +1000" }, "message": "modules: extend initcall_debug functionality to the module loader\n\nThe kernel has this really nice facility where if you put \"initcall_debug\"\non the kernel commandline, it\u0027ll print which function it\u0027s going to\nexecute just before calling an initcall, and then after the call completes\nit will\n\n1) print if it had an error code\n\n2) checks for a few simple bugs (like leaving irqs off)\nand\n\n3) print how long the init call took in milliseconds.\n\nWhile trying to optimize the boot speed of my laptop, I have been loving\nnumber 3 to figure out what to optimize... ... and then I wished that\nthe same thing was done for module loading.\n\nThis patch makes the module loader use this exact same functionality; it\u0027s\na logical extension in my view (since modules are just sort of late\nbinding initcalls anyway) and so far I\u0027ve found it quite useful in finding\nwhere things are too slow in my boot.\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "1ea2950884aa320c46315c8ddf62717c6ecf78d0", "tree": "3e03cfd79dd3d629ee46bb04771d79250fe52ad3", "parents": [ "67a077dca4e648a662e32cbeaaba8094d2e30229", "e26b33e9552c29c1d3fe67dc602c6264c29f5dc7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 11 16:46:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 11 16:46:31 2008 -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, cpu hotplug: fix set_cpus_allowed() use in hotplug callbacks\n sched: fix mysql+oltp regression\n sched_clock: delay using sched_clock()\n sched clock: couple local and remote clocks\n sched clock: simplify __update_sched_clock()\n sched: eliminate scd-\u003eprev_raw\n sched clock: clean up sched_clock_cpu()\n sched clock: revert various sched_clock() changes\n sched: move sched_clock before first use\n sched: test runtime rather than period in global_rt_runtime()\n sched: fix SCHED_HRTICK dependency\n sched: fix warning in hrtick_start_fair()\n" }, { "commit": "67a077dca4e648a662e32cbeaaba8094d2e30229", "tree": "2f8943838b73b0a8ea590b1aaad9294eb280ea1e", "parents": [ "9b4d0bab32e18e4f72781f9fa309a81495b2aff3", "2106b531eaa2edd0c2dfa735a0556c08c7ba3c86" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 11 16:46:11 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 11 16:46:11 2008 -0700" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n posix-timers: fix posix_timer_event() vs dequeue_signal() race\n posix-timers: do_schedule_next_timer: fix the setting of -\u003esi_overrun\n" }, { "commit": "9b4d0bab32e18e4f72781f9fa309a81495b2aff3", "tree": "ce95c619d06d10bd0b2c0039f76a03deefaab2c2", "parents": [ "7019b1b50097a94d0f8a77b81bee0b19b108c634", "23a0ee908cbfba3264d19729c67c22b20fa73886" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 11 16:45:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 11 16:45:46 2008 -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 lockdep: fix debug_lock_alloc\n lockdep: increase MAX_LOCKDEP_KEYS\n generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask()\n lockdep: fix overflow in the hlock shrinkage code\n lockdep: rename map_[acquire|release]() \u003d\u003e lock_map_[acquire|release]()\n lockdep: handle chains involving classes defined in modules\n mm: fix mm_take_all_locks() locking order\n lockdep: annotate mm_take_all_locks()\n lockdep: spin_lock_nest_lock()\n lockdep: lock protection locks\n lockdep: map_acquire\n lockdep: shrink held_lock structure\n lockdep: re-annotate scheduler runqueues\n lockdep: lock_set_subclass - reset a held lock\u0027s subclass\n lockdep: change scheduler annotation\n debug_locks: set oops_in_progress if we will log messages.\n lockdep: fix combinatorial explosion in lock subgraph traversal\n" }, { "commit": "23a0ee908cbfba3264d19729c67c22b20fa73886", "tree": "541103f6283cbac6b82cff88a7b91128acfce046", "parents": [ "cc7a486cac78f6fc1a24e8cd63036bae8d2ab431", "0f2bc27be27ca1dcc66b96131e44bf7648b959c6" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 12 00:11:49 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 12 00:11:49 2008 +0200" }, "message": "Merge branch \u0027core/locking\u0027 into core/urgent\n" }, { "commit": "e26b33e9552c29c1d3fe67dc602c6264c29f5dc7", "tree": "98f99cedc86db77665d1a3b582444b9049aacc58", "parents": [ "279ef6bbb8308488398c8f33b04c760148428378", "cf206bffbb7542df54043fad9898113172af99d8" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 12 00:07:02 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Aug 12 00:07:02 2008 +0200" }, "message": "Merge branch \u0027sched/clock\u0027 into sched/urgent\n" }, { "commit": "0f2bc27be27ca1dcc66b96131e44bf7648b959c6", "tree": "22ea7b9a28878851f445a5420ff80b64ee1cfdd1", "parents": [ "e5f363e358cf16e4ad13a6826e15088c5495efe9" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 22:45:51 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 22:45:51 2008 +0200" }, "message": "lockdep: fix debug_lock_alloc\n\nWhen we enable DEBUG_LOCK_ALLOC but do not enable PROVE_LOCKING and or\nLOCK_STAT, lock_alloc() and lock_release() turn into nops, even though\nwe should be doing hlock checking (check\u003d1).\n\nThis causes a false warning and a lockdep self-disable.\n\nRectify this.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "279ef6bbb8308488398c8f33b04c760148428378", "tree": "bc2b925ce5ed3f943d57a2adc99324cf308712e7", "parents": [ "77ae651347bdd46830da8b28b1efc5e4a9d7cbd0" ], "author": { "name": "Dmitry Adamushko", "email": "dmitry.adamushko@gmail.com", "time": "Wed Jul 30 12:34:04 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 16:32:41 2008 +0200" }, "message": "sched, cpu hotplug: fix set_cpus_allowed() use in hotplug callbacks\n\nMark Langsdorf reported:\n\n\u003e One of my co-workers noticed that the powernow-k8\n\u003e driver no longer restarts when a CPU core is\n\u003e hot-disabled and then hot-enabled on AMD quad-core\n\u003e systems.\n\u003e\n\u003e The following comands work fine on 2.6.26 and fail\n\u003e on 2.6.27-rc1:\n\u003e\n\u003e echo 0 \u003e /sys/devices/system/cpu/cpu3/online\n\u003e echo 1 \u003e /sys/devices/system/cpu/cpu3/online\n\u003e find /sys -name cpufreq\n\u003e\n\u003e For 2.6.26, the find will return a cpufreq\n\u003e directory for each processor. In 2.6.27-rc1,\n\u003e the cpu3 directory is missing.\n\u003e\n\u003e After digging through the code, the following\n\u003e logic is failing when the core is hot-enabled\n\u003e at runtime. The code works during the boot\n\u003e sequence.\n\u003e\n\u003e cpumask_t \u003d current-\u003ecpus_allowed;\n\u003e set_cpus_allowed_ptr(current, \u0026cpumask_of_cpu(cpu));\n\u003e if (smp_processor_id() !\u003d cpu)\n\u003e return -ENODEV;\n\nSo set the CPU active before calling the CPU_ONLINE notifier chain,\nthere are a handful of notifiers that use set_cpus_allowed().\n\nThis fix also solves the problem with x86-microcode. I\u0027ve sent\nalternative patches for microcode, but as this \"rely on\nset_cpus_allowed_ptr() being workable in cpu-hotplug(CPU_ONLINE, ...)\"\nassumption seems to be more broad than what we thought, perhaps this fix\nshould be applied.\n\nWith this patch we define that by the moment CPU_ONLINE is being sent,\na \u0027cpu\u0027 is online and ready for tasks to be migrated onto it.\n\nSigned-off-by: Dmitry Adamushko \u003cdmitry.adamushko@gmail.com\u003e\nReported-by: Mark Langsdorf \u003cmark.langsdorf@amd.com\u003e\nTested-by: Mark Langsdorf \u003cmark.langsdorf@amd.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cc7a486cac78f6fc1a24e8cd63036bae8d2ab431", "tree": "258abdc1843d6f9ed76608412f1364178fb8c697", "parents": [ "796aadeb1b2db9b5d463946766c5bbfd7717158c" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Mon Aug 11 13:49:30 2008 +1000" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 15:21:28 2008 +0200" }, "message": "generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask()\n\n* Venki Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e wrote:\n\n\u003e Found a OOPS on a big SMP box during an overnight reboot test with\n\u003e upstream git.\n\u003e\n\u003e Suresh and I looked at the oops and looks like the root cause is in\n\u003e generic_smp_call_function_interrupt() and smp_call_function_mask() with\n\u003e wait parameter.\n\u003e\n\u003e The actual oops looked like\n\u003e\n\u003e [ 11.277260] BUG: unable to handle kernel paging request at ffff8802ffffffff\n\u003e [ 11.277815] IP: [\u003cffff8802ffffffff\u003e] 0xffff8802ffffffff\n\u003e [ 11.278155] PGD 202063 PUD 0\n\u003e [ 11.278576] Oops: 0010 [1] SMP\n\u003e [ 11.279006] CPU 5\n\u003e [ 11.279336] Modules linked in:\n\u003e [ 11.279752] Pid: 0, comm: swapper Not tainted 2.6.27-rc2-00020-g685d87f #290\n\u003e [ 11.280039] RIP: 0010:[\u003cffff8802ffffffff\u003e] [\u003cffff8802ffffffff\u003e] 0xffff8802ffffffff\n\u003e [ 11.280692] RSP: 0018:ffff88027f1f7f70 EFLAGS: 00010086\n\u003e [ 11.280976] RAX: 00000000ffffffff RBX: 0000000000000000 RCX: 0000000000000000\n\u003e [ 11.281264] RDX: 0000000000004f4e RSI: 0000000000000001 RDI: 0000000000000000\n\u003e [ 11.281624] RBP: ffff88027f1f7f98 R08: 0000000000000001 R09: ffffffff802509af\n\u003e [ 11.281925] R10: ffff8800280c2780 R11: 0000000000000000 R12: ffff88027f097d48\n\u003e [ 11.282214] R13: ffff88027f097d70 R14: 0000000000000005 R15: ffff88027e571000\n\u003e [ 11.282502] FS: 0000000000000000(0000) GS:ffff88027f1c3340(0000) knlGS:0000000000000000\n\u003e [ 11.283096] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b\n\u003e [ 11.283382] CR2: ffff8802ffffffff CR3: 0000000000201000 CR4: 00000000000006e0\n\u003e [ 11.283760] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n\u003e [ 11.284048] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400\n\u003e [ 11.284337] Process swapper (pid: 0, threadinfo ffff88027f1f2000, task ffff88027f1f0640)\n\u003e [ 11.284936] Stack: ffffffff80250963 0000000000000212 0000000000ee8c78 0000000000ee8a66\n\u003e [ 11.285802] ffff88027e571550 ffff88027f1f7fa8 ffffffff8021adb5 ffff88027f1f3e40\n\u003e [ 11.286599] ffffffff8020bdd6 ffff88027f1f3e40 \u003cEOI\u003e ffff88027f1f3ef8 0000000000000000\n\u003e [ 11.287120] Call Trace:\n\u003e [ 11.287768] \u003cIRQ\u003e [\u003cffffffff80250963\u003e] ? generic_smp_call_function_interrupt+0x61/0x12c\n\u003e [ 11.288354] [\u003cffffffff8021adb5\u003e] smp_call_function_interrupt+0x17/0x27\n\u003e [ 11.288744] [\u003cffffffff8020bdd6\u003e] call_function_interrupt+0x66/0x70\n\u003e [ 11.289030] \u003cEOI\u003e [\u003cffffffff8024ab3b\u003e] ? clockevents_notify+0x19/0x73\n\u003e [ 11.289380] [\u003cffffffff803b9b75\u003e] ? acpi_idle_enter_simple+0x18b/0x1fa\n\u003e [ 11.289760] [\u003cffffffff803b9b6b\u003e] ? acpi_idle_enter_simple+0x181/0x1fa\n\u003e [ 11.290051] [\u003cffffffff8053aeca\u003e] ? cpuidle_idle_call+0x70/0xa2\n\u003e [ 11.290338] [\u003cffffffff80209f61\u003e] ? cpu_idle+0x5f/0x7d\n\u003e [ 11.290723] [\u003cffffffff8060224a\u003e] ? start_secondary+0x14d/0x152\n\u003e [ 11.291010]\n\u003e [ 11.291287]\n\u003e [ 11.291654] Code: Bad RIP value.\n\u003e [ 11.292041] RIP [\u003cffff8802ffffffff\u003e] 0xffff8802ffffffff\n\u003e [ 11.292380] RSP \u003cffff88027f1f7f70\u003e\n\u003e [ 11.292741] CR2: ffff8802ffffffff\n\u003e [ 11.310951] ---[ end trace 137c54d525305f1c ]---\n\u003e\n\u003e The problem is with the following sequence of events:\n\u003e\n\u003e - CPU A calls smp_call_function_mask() for CPU B with wait parameter\n\u003e - CPU A sets up the call_function_data on the stack and does an rcu add to\n\u003e call_function_queue\n\u003e - CPU A waits until the WAIT flag is cleared\n\u003e - CPU B gets the call function interrupt and starts going through the\n\u003e call_function_queue\n\u003e - CPU C also gets some other call function interrupt and starts going through\n\u003e the call_function_queue\n\u003e - CPU C, which is also going through the call_function_queue, starts referencing\n\u003e CPU A\u0027s stack, as that element is still in call_function_queue\n\u003e - CPU B finishes the function call that CPU A set up and as there are no other\n\u003e references to it, rcu deletes the call_function_data (which was from CPU A\n\u003e stack)\n\u003e - CPU B sees the wait flag and just clears the flag (no call_rcu to free)\n\u003e - CPU A which was waiting on the flag continues executing and the stack\n\u003e contents change\n\u003e\n\u003e - CPU C is still in rcu_read section accessing the CPU A\u0027s stack sees\n\u003e inconsistent call_funation_data and can try to execute\n\u003e function with some random pointer, causing stack corruption for A\n\u003e (by clearing the bits in mask field) and oops.\n\nNice debugging work.\n\nI\u0027d suggest something like the attached (boot tested) patch as the simple\nfix for now.\n\nI expect the benefits from the less synchronized, multiple-in-flight-data\nglobal queue will still outweigh the costs of dynamic allocations. But\nif worst comes to worst then we just go back to a globally synchronous\none-at-a-time implementation, but that would be pretty sad!\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "77ae651347bdd46830da8b28b1efc5e4a9d7cbd0", "tree": "5c43252b5811cc0cba7b92e6b2fd241e0df6e3c8", "parents": [ "251a169c69d1ff07cee7a9bb9fc4faff6b1d2ac3" ], "author": { "name": "Mike Galbraith", "email": "efault@gmx.de", "time": "Mon Aug 11 13:32:02 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 14:49:29 2008 +0200" }, "message": "sched: fix mysql+oltp regression\n\nDefer commit 6d299f1b53b84e2665f402d9bcc494800aba6386 to the next release.\n\nTesting of the tip/sched/clock tree revealed a mysql+oltp regression\nwhich bisection eventually traced back to this commit in mainline.\n\nPertinent test results: Three run sysbench averages, throughput units\nin read/write requests/sec.\n\nclients 1 2 4 8 16 32 64\n6e0534f 9646 17876 34774 33868 32230 30767 29441\n2.6.26.1 9112 17936 34652 33383 31929 30665 29232\n6d299f1 9112 14637 28370 33339 32038 30762 29204\n\nNote: subsequent commits hide the majority of this regression until you\napply the clock fixes, at which time it reemerges at full magnitude.\n\nWe cannot see anything bad about the change itself so we defer it to the\nnext release until this problem is fully analysed.\n\nSigned-off-by: Mike Galbraith \u003cefault@gmx.de\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Gregory Haskins \u003cghaskins@novell.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "251a169c69d1ff07cee7a9bb9fc4faff6b1d2ac3", "tree": "3c20c3e080f276848f2ad67aadab44a5d64bfda9", "parents": [ "6679ce6e5f519096612b480d255d9ca97be0c2be", "796aadeb1b2db9b5d463946766c5bbfd7717158c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 13:40:56 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 13:40:56 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into sched/urgent\n" }, { "commit": "3295f0ef9ff048a4619ede597ad9ec9cab725654", "tree": "f39a8ecf1958130a0b86c554399d23a65b1c3991", "parents": [ "8bfe0298f7a04952d19f4a2cf510d7a6311eeed0" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 10:30:30 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 10:30:30 2008 +0200" }, "message": "lockdep: rename map_[acquire|release]() \u003d\u003e lock_map_[acquire|release]()\n\nthe names were too generic:\n\n drivers/uio/uio.c:87: error: expected identifier or \u0027(\u0027 before \u0027do\u0027\n drivers/uio/uio.c:87: error: expected identifier or \u0027(\u0027 before \u0027while\u0027\n drivers/uio/uio.c:113: error: \u0027map_release\u0027 undeclared here (not in a function)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "8bfe0298f7a04952d19f4a2cf510d7a6311eeed0", "tree": "f90c216c26c0d73128a713d5142ccaefa2dce353", "parents": [ "7cd5a02f54f4c9d16cf7fdffa2122bc73bb09b43" ], "author": { "name": "Rabin Vincent", "email": "rabin@rab.in", "time": "Mon Aug 11 09:30:26 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:26 2008 +0200" }, "message": "lockdep: handle chains involving classes defined in modules\n\nSolve this by marking the classes as unused and not printing information\nabout the unused classes.\n\nReported-by: Eric Sesterhenn \u003csnakebyte@gmx.de\u003e\nSigned-off-by: Rabin Vincent \u003crabin@rab.in\u003e\nAcked-by: Huang Ying \u003cying.huang@intel.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b7d39aff91454f2534db2275f55908656ec0470c", "tree": "24481f2fe7206ef69800a33df6ac3e1716085326", "parents": [ "7531e2f34d1d551b096143f19111139f0dd84c8b" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 09:30:24 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:24 2008 +0200" }, "message": "lockdep: spin_lock_nest_lock()\n\nExpose the new lock protection lock.\n\nThis can be used to annotate places where we take multiple locks of the\nsame class and avoid deadlocks by always taking another (top-level) lock\nfirst.\n\nNOTE: we\u0027re still bound to the MAX_LOCK_DEPTH (48) limit.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7531e2f34d1d551b096143f19111139f0dd84c8b", "tree": "0a29d6703e28dc6752b9b4085594cca238595aac", "parents": [ "4f3e7524b2e703d9f8b02ac338153a53dd7ede66" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 09:30:24 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:24 2008 +0200" }, "message": "lockdep: lock protection locks\n\nOn Fri, 2008-08-01 at 16:26 -0700, Linus Torvalds wrote:\n\n\u003e On Fri, 1 Aug 2008, David Miller wrote:\n\u003e \u003e\n\u003e \u003e Taking more than a few locks of the same class at once is bad\n\u003e \u003e news and it\u0027s better to find an alternative method.\n\u003e\n\u003e It\u0027s not always wrong.\n\u003e\n\u003e If you can guarantee that anybody that takes more than one lock of a\n\u003e particular class will always take a single top-level lock _first_, then\n\u003e that\u0027s all good. You can obviously screw up and take the same lock _twice_\n\u003e (which will deadlock), but at least you cannot get into ABBA situations.\n\u003e\n\u003e So maybe the right thing to do is to just teach lockdep about \"lock\n\u003e protection locks\". That would have solved the multi-queue issues for\n\u003e networking too - all the actual network drivers would still have taken\n\u003e just their single queue lock, but the one case that needs to take all of\n\u003e them would have taken a separate top-level lock first.\n\u003e\n\u003e Never mind that the multi-queue locks were always taken in the same order:\n\u003e it\u0027s never wrong to just have some top-level serialization, and anybody\n\u003e who needs to take \u003cn\u003e locks might as well do \u003cn+1\u003e, because they sure as\n\u003e hell aren\u0027t going to be on _any_ fastpaths.\n\u003e\n\u003e So the simplest solution really sounds like just teaching lockdep about\n\u003e that one special case. It\u0027s not \"nesting\" exactly, although it\u0027s obviously\n\u003e related to it.\n\nDo as Linus suggested. The lock protection lock is called nest_lock.\n\nNote that we still have the MAX_LOCK_DEPTH (48) limit to consider, so anything\nthat spills that it still up shit creek.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4f3e7524b2e703d9f8b02ac338153a53dd7ede66", "tree": "0033ade94f230d6044ad318e3791c55ad611069e", "parents": [ "f82b217e3513fe3af342c0f3ee1494e86250c21c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 09:30:23 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:23 2008 +0200" }, "message": "lockdep: map_acquire\n\nMost the free-standing lock_acquire() usages look remarkably similar, sweep\nthem into a new helper.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f82b217e3513fe3af342c0f3ee1494e86250c21c", "tree": "144b724c9e0c491c0983087627000080b25b9852", "parents": [ "1b12bbc747560ea68bcc132c3d05699e52271da0" ], "author": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Mon Aug 11 09:30:23 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:23 2008 +0200" }, "message": "lockdep: shrink held_lock structure\n\nstruct held_lock {\n u64 prev_chain_key; /* 0 8 */\n struct lock_class * class; /* 8 8 */\n long unsigned int acquire_ip; /* 16 8 */\n struct lockdep_map * instance; /* 24 8 */\n int irq_context; /* 32 4 */\n int trylock; /* 36 4 */\n int read; /* 40 4 */\n int check; /* 44 4 */\n int hardirqs_off; /* 48 4 */\n\n /* size: 56, cachelines: 1 */\n /* padding: 4 */\n /* last cacheline: 56 bytes */\n};\n\nstruct held_lock {\n u64 prev_chain_key; /* 0 8 */\n long unsigned int acquire_ip; /* 8 8 */\n struct lockdep_map * instance; /* 16 8 */\n unsigned int class_idx:11; /* 24:21 4 */\n unsigned int irq_context:2; /* 24:19 4 */\n unsigned int trylock:1; /* 24:18 4 */\n unsigned int read:2; /* 24:16 4 */\n unsigned int check:2; /* 24:14 4 */\n unsigned int hardirqs_off:1; /* 24:13 4 */\n\n /* size: 32, cachelines: 1 */\n /* padding: 4 */\n /* bit_padding: 13 bits */\n /* last cacheline: 32 bytes */\n};\n\n[mingo@elte.hu: shrunk hlock-\u003eclass too]\n[peterz@infradead.org: fixup bit sizes]\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n" }, { "commit": "1b12bbc747560ea68bcc132c3d05699e52271da0", "tree": "0e0fe5b7fe07d411251eebdd053e9e7793820248", "parents": [ "64aa348edc617dea17bbd01ddee4e47886d5ec8c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 09:30:22 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:22 2008 +0200" }, "message": "lockdep: re-annotate scheduler runqueues\n\nInstead of using a per-rq lock class, use the regular nesting operations.\n\nHowever, take extra care with double_lock_balance() as it can release the\nalready held rq-\u003elock (and therefore change its nesting class).\n\nSo what can happen is:\n\n spin_lock(rq-\u003elock);\t// this rq subclass 0\n\n double_lock_balance(rq, other_rq);\n // release rq\n // acquire other_rq-\u003elock subclass 0\n // acquire rq-\u003elock subclass 1\n\n spin_unlock(other_rq-\u003elock);\n\nleaving you with rq-\u003elock in subclass 1\n\nSo a subsequent double_lock_balance() call can try to nest a subclass 1\nlock while already holding a subclass 1 lock.\n\nFix this by introducing double_unlock_balance() which releases the other\nrq\u0027s lock, but also re-sets the subclass for this rq\u0027s lock to 0.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "64aa348edc617dea17bbd01ddee4e47886d5ec8c", "tree": "002b5fa796aff225d0cb9d0c32bb3ba96da6eaaf", "parents": [ "5e710e37bde120bb069f691bee68e69ef4393173" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 09:30:21 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 09:30:21 2008 +0200" }, "message": "lockdep: lock_set_subclass - reset a held lock\u0027s subclass\n\nthis can be used to reset a held lock\u0027s subclass, for arbitrary-depth\niterated data structures such as trees or lists which have per-node\nlocks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cf206bffbb7542df54043fad9898113172af99d8", "tree": "c7e7ca9a93443b888f98a0c07e74751a1aa3c947", "parents": [ "c1955a3d4762e7a9bf84035eb3c4886a900f0d15", "796aadeb1b2db9b5d463946766c5bbfd7717158c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 08:59:21 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 08:59:21 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into sched/clock\n" }, { "commit": "c1955a3d4762e7a9bf84035eb3c4886a900f0d15", "tree": "a00dcd1736c612017df7094a91d8a6435b7a49c9", "parents": [ "4a273f209cc95d148f79b4c96d3d03997b44ffda" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Aug 11 08:59:03 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Aug 11 08:59:03 2008 +0200" }, "message": "sched_clock: delay using sched_clock()\n\nSome arch\u0027s can\u0027t handle sched_clock() being called too early - delay\nthis until sched_clock_init() has been called.\n\nReported-by: Bill Gatliff \u003cbgat@billgatliff.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nCC: Russell King - ARM Linux \u003clinux@arm.linux.org.uk\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "cb3952bf7853667a1cb3515e67f27e67f0fce9e8", "tree": "b861e4e3636dbac1d17b8feb8c25e744c9e4f80a", "parents": [ "bba81165867313766534dd31603de51bdd36ef9b" ], "author": { "name": "Dmitry Baryshkov", "email": "dbaryshkov@gmail.com", "time": "Wed Jul 30 14:46:50 2008 +0400" }, "committer": { "name": "Jesse Barnes", "email": "jbarnes@virtuousgeek.org", "time": "Thu Aug 07 06:52:01 2008 -0700" }, "message": "DMA: make dma-coherent.c documentation kdoc-friendly\n\nSpotted by Randy.\n\nAcked-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Dmitry Baryshkov \u003cdbaryshkov@gmail.com\u003e\nSigned-off-by: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\n" }, { "commit": "bf1db69fbf4ff511e88736ce2e6318846f34492b", "tree": "545a9d60d7932dbfc7ce5d9af621c9af9923bc3a", "parents": [ "7c44319dc6deb0028ef7811670bf1e4bc6644672" ], "author": { "name": "Richard Hughes", "email": "richard@hughsie.com", "time": "Tue Aug 05 13:01:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 05 14:33:50 2008 -0700" }, "message": "pm_qos: spelling fixes\n\nA documentation cleanup patch. With a minor tweak to clarify units for\nkbs.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: mark gross \u003cmgross@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d2dc1f4adb4b5b02d87e49e115e5107f4da790c0", "tree": "37b5d2a3dd97a89981541b96bf6043741f09f92d", "parents": [ "978cc90c469b38bcbbfd00a8c183d74e5b17bf45" ], "author": { "name": "Jan Beulich", "email": "jbeulich@novell.com", "time": "Tue Aug 05 13:01:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 05 14:33:49 2008 -0700" }, "message": "dma: fix order calculation in dma_mark_declared_memory_occupied()\n\nget_order() takes byte-sized input, not a page-granular one.\n\nIrrespective of this fix I\u0027m inclined to believe that this doesn\u0027t work\nright anyway - bitmap_allocate_region() has an implicit assumption of\n\u0027pos\u0027 being suitable for \u0027order\u0027, which this function doesn\u0027t seem to\nenforce (and since it\u0027s being called with a byte-granular value there\u0027s no\nreason to believe that the callers would make sure device_addr is passed\naccordingly - it\u0027s also not documented that way).\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nCc: James E.J. Bottomley \u003cJames.Bottomley@HansenPartnership.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Dmitry Baryshkov \u003cdbaryshkov@gmail.com\u003e\nCc: Jesse Barnes \u003cjbarnes@virtuousgeek.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c69ad71bcdecbaab82cfacb1dc967bd7fd967a3b", "tree": "0554837705dd0e63d18522085c22ab0c2c1467ff", "parents": [ "5b2becc8cffdccdd60c63099f592ddd35aa6c34f" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Tue Aug 05 13:01:14 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 05 14:33:47 2008 -0700" }, "message": "genirq: better warning on irqchip-\u003eset_type() failure\n\nWhile I\u0027m glad to finally see the hole fixed whereby passing an invalid\nIRQ trigger type to request_irq() would be ignored, the current diagnostic\nisn\u0027t quite useful. Fixed by also listing the trigger type which was\nrejected.\n\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nAcked-by: Uwe Kleine-König \u003cUwe.Kleine-Koenig@digi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5b2becc8cffdccdd60c63099f592ddd35aa6c34f", "tree": "e502280aee4d93b059a93526ba3f02a6883a596d", "parents": [ "32194450330be327f3b25bf6b66298bd122599e9" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Aug 05 13:01:13 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 05 14:33:47 2008 -0700" }, "message": "semaphore: __down_common: use signal_pending_state()\n\nChange __down_common() to use signal_pending_state() instead of open\ncoding.\n\nThe changes in kernel/semaphore.o are just artifacts, the state checks are\noptimized away.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "32194450330be327f3b25bf6b66298bd122599e9", "tree": "48efcfe62b2c09396f4d9e03839f53e1577a4019", "parents": [ "60cadec9da7b6c91aca51f408c828f7e74a68379" ], "author": { "name": "Tom Zanussi", "email": "tzanussi@gmail.com", "time": "Tue Aug 05 13:01:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 05 14:33:46 2008 -0700" }, "message": "relay: fix \"full buffer with exactly full last subbuffer\" accounting problem\n\nIn relay\u0027s current read implementation, if the buffer is completely full\nbut hasn\u0027t triggered the buffer-full condition (i.e. the last write\ndidn\u0027t cross the subbuffer boundary) and the last subbuffer is exactly\nfull, the subbuffer accounting code erroneously finds nothing available.\nThis patch fixes the problem.\n\nSigned-off-by: Tom Zanussi \u003ctzanussi@gmail.com\u003e\nCc: Eduard - Gabriel Munteanu \u003ceduard.munteanu@linux360.ro\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nCc: Mathieu Desnoyers \u003ccompudj@krystal.dyndns.org\u003e\nCc: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[2.6.25.x, 2.6.26.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b13ad6f47c172761a3ce06f0fd12d19118b3076c", "tree": "69ce47a230c72f15044bb40810c4ee7a9864817b", "parents": [ "f1b134fdf6d36c975b4a66cf952565cd73aebdba", "1a61c88defcd611bd148d6c960b498e1b8bbbe00" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 04 17:21:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 04 17:21:38 2008 -0700" }, "message": "Merge branch \u0027audit.b56\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current\n\n* \u0027audit.b56\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:\n Re: [PATCH] Fix the kernel panic of audit_filter_task when key field is set\n" }, { "commit": "725aad24c3ba96a7c06448c14c265a466cdbd663", "tree": "bbe0eae923736950030751651f70f3ace4cc7693", "parents": [ "5941de8eadc287f3f47b87ce9888734ee07d210b" ], "author": { "name": "Jeremy Fitzhardinge", "email": "jeremy@goop.org", "time": "Sun Aug 03 09:33:03 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 04 17:16:20 2008 -0700" }, "message": "__sched_setscheduler: don\u0027t do any policy checks when not \"user\"\n\nThe \"user\" parameter to __sched_setscheduler indicates whether the\nchange is being done on behalf of a user process or not. If not, we\nshouldn\u0027t apply any permissions checks, so don\u0027t call\nsecurity_task_setscheduler().\n\nSigned-off-by: Jeremy Fitzhardinge \u003cjeremy@goop.org\u003e\nTested-by: Steve Wise \u003cswise@opengridcomputing.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1a61c88defcd611bd148d6c960b498e1b8bbbe00", "tree": "8b8d84cb828caabd61d849967b3a6f8de6df2b66", "parents": [ "2b12a4c524812fb3f6ee590a02e65b95c8c32229" ], "author": { "name": "zhangxiliang", "email": "zhangxiliang@cn.fujitsu.com", "time": "Sat Aug 02 10:56:37 2008 +0800" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Aug 04 06:13:50 2008 -0400" }, "message": "Re: [PATCH] Fix the kernel panic of audit_filter_task when key field is set\n\nSorry, I miss a blank between if and \"(\".\nAnd I add \"unlikely\" to check \"ctx\" in audit_match_perm() and audit_match_filetype().\nThis is a new patch for it.\n\nSigned-off-by: Zhang Xiliang \u003czhangxiliang@cn.fujitsu.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "5c7edcd7ee6b77b88252fe4096dce1a46a60c829", "tree": "4936df589df33c671e2e98ea45b89e7f45278f61", "parents": [ "1e24b15b267293567a8d752721c7ae63f281325a" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Thu Jul 31 02:04:09 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 01 12:01:11 2008 -0700" }, "message": "tracehook: fix exit_signal\u003d0 case\n\nMy commit 2b2a1ff64afbadac842bbc58c5166962cf4f7664 introduced a regression\n(sorry about that) for the odd case of exit_signal\u003d0 (e.g. clone_flags\u003d0).\nThis is not a normal use, but it\u0027s used by a case in the glibc test suite.\n\nDying with exit_signal\u003d0 sends no signal, but it\u0027s supposed to wake up a\nparent\u0027s blocked wait*() calls (unlike the delayed_group_leader case).\nThis fixes tracehook_notify_death() and its caller to distinguish a\n\"signal 0\" wakeup from the delayed_group_leader case (with no wakeup).\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nTested-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5adf2b03d97111c8955495ba11e8b7db27df8695", "tree": "6e02833c57f4967973ebe14b44ce30ddd85f1ea2", "parents": [ "e811603feb198079bcdb3f75f72cbf9681de2062", "0e241ffd306c0896bb9959be7faa4d4cfcb706d9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 01 11:52:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 01 11:52:39 2008 -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 locking: fix mutex @key parameter kernel-doc notation\n" }, { "commit": "31582b094d640fdab3fd29237b348a4c7c8646fb", "tree": "52ee679e7dab9d6627d69d87470d62fef7a651d6", "parents": [ "df1efe6f871e2d3f83e6ad7b7a1d2b728b478fc2", "25fc999913839a45cbb48ac7872e67f7521e7ed9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 01 11:45:09 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Aug 01 11:45:09 2008 -0700" }, "message": "Merge branch \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb\n\n* \u0027for_linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:\n kgdb: fix gdb serial thread queries\n kgdb: fix kgdb_validate_break_address to perform a mem write\n kgdb: remove the requirement for CONFIG_FRAME_POINTER\n" }, { "commit": "20c6aaa39ab735c7ed78e4e5a214d250efae0a6e", "tree": "132164efa309d2df3daeb9fed80ee75da93672bc", "parents": [ "980dfb0db340b95094732d78b55311f2c539c1af" ], "author": { "name": "zhangxiliang", "email": "zhangxiliang@cn.fujitsu.com", "time": "Thu Jul 31 10:11:19 2008 +0800" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Aug 01 12:15:16 2008 -0400" }, "message": "[PATCH] Fix the bug of using AUDIT_STATUS_RATE_LIMIT when set fail, no error output.\n\nWhen the \"status_get-\u003emask\" is \"AUDIT_STATUS_RATE_LIMIT || AUDIT_STATUS_BACKLOG_LIMIT\".\nIf \"audit_set_rate_limit\" fails and \"audit_set_backlog_limit\" succeeds, the \"err\" value\nwill be greater than or equal to 0. It will miss the failure of rate set.\n\nSigned-off-by: Zhang Xiliang \u003czhangxiliang@cn.fujitsu.com\u003e\nAcked-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "980dfb0db340b95094732d78b55311f2c539c1af", "tree": "7235e21116a0958591adeaec4e51734cc224094e", "parents": [ "036bbf76ad9f83781590623111b80ba0b82930ac" ], "author": { "name": "zhangxiliang", "email": "zhangxiliang@cn.fujitsu.com", "time": "Fri Aug 01 19:15:47 2008 +0800" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Aug 01 12:15:03 2008 -0400" }, "message": "[PATCH] Fix the kernel panic of audit_filter_task when key field is set\n\nWhen calling audit_filter_task(), it calls audit_filter_rules() with audit_context is NULL.\nIf the key field is set, the result in audit_filter_rules() will be set to 1 and\nctx-\u003efilterkey will be set to key.\nBut the ctx is NULL in this condition, so kernel will panic.\n\nSigned-off-by: Zhang Xiliang \u003czhangxiliang@cn.fujitsu.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "036bbf76ad9f83781590623111b80ba0b82930ac", "tree": "077b5464efa36ff4588870498ba54ef3bca319a4", "parents": [ "1d6c9649e236caa2e93e3647256216e57172b011" ], "author": { "name": "zhangxiliang", "email": "zhangxiliang@cn.fujitsu.com", "time": "Fri Aug 01 09:47:01 2008 +0800" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Aug 01 12:15:03 2008 -0400" }, "message": "Re: [PATCH] the loginuid field should be output in all AUDIT_CONFIG_CHANGE audit messages\n\n\u003e shouldn\u0027t these be using the \"audit_get_loginuid(current)\" and if we\n\u003e are going to output loginuid we also should be outputting sessionid\n\nThanks for your detailed explanation.\nI have made a new patch for outputing \"loginuid\" and \"sessionid\" by audit_get_loginuid(current) and audit_get_sessionid(current).\nIf there are some deficiencies, please give me your indication.\n\nSigned-off-by: Zhang Xiliang \u003czhangxiliang@cn.fujitsu.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "1d6c9649e236caa2e93e3647256216e57172b011", "tree": "f2ddd51635a3aac71d11e6d6ae4d4dc698c120f5", "parents": [ "ee1d315663ee0b494898f813a266d6244b263b4f" ], "author": { "name": "Vesa-Matti J Kari", "email": "vmkari@cc.helsinki.fi", "time": "Wed Jul 23 00:06:13 2008 +0300" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Aug 01 12:05:35 2008 -0400" }, "message": "kernel/audit.c control character detection is off-by-one\n\nHello,\n\nAccording to my understanding there is an off-by-one bug in the\nfunction:\n\n audit_string_contains_control()\n\nin:\n\n kernel/audit.c\n\nPatch is included.\n\nI do not know from how many places the function is called from, but for\nexample, SELinux Access Vector Cache tries to log untrusted filenames via\ncall path:\n\navc_audit()\n audit_log_untrustedstring()\n audit_log_n_untrustedstring()\n audit_string_contains_control()\n\nIf audit_string_contains_control() detects control characters, then the\nstring is hex-encoded. But the hex\u003d0x7f dec\u003d127, DEL-character, is not\ndetected.\n\nI guess this could have at least some minor security implications, since a\nuser can create a filename with 0x7f in it, causing logged filename to\npossibly look different when someone reads it on the terminal.\n\nSigned-off-by: Vesa-Matti Kari \u003cvmkari@cc.helsinki.fi\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "ee1d315663ee0b494898f813a266d6244b263b4f", "tree": "f9bf6dcacaf105431641469089e20516dd403fc5", "parents": [ "94ad374a0751f40d25e22e036c37f7263569d24c" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Mon Jul 07 10:49:45 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Aug 01 12:05:32 2008 -0400" }, "message": "[PATCH] Audit: Collect signal info when SIGUSR2 is sent to auditd\n\nMakes the kernel audit subsystem collect information about the sending\nprocess when that process sends SIGUSR2 to the userspace audit daemon.\nSIGUSR2 is a new interesting signal to auditd telling auditd that it\nshould try to start logging to disk again and the error condition which\ncaused it to stop logging to disk (usually out of space) has been\nrectified.\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "25fc999913839a45cbb48ac7872e67f7521e7ed9", "tree": "2785851665dccc753e9e6cf0de650be72e56d7de", "parents": [ "a9b60bf4c29e07a5a2f26a6f74937972fee9b58b" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Aug 01 08:39:35 2008 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Aug 01 08:39:35 2008 -0500" }, "message": "kgdb: fix gdb serial thread queries\n\nThe command \"info threads\" did not work correctly with kgdb. It would\nresult in a silent kernel hang if used.\n\nThis patach addresses several problems.\n - Fix use of deprecated NR_CPUS\n - Fix kgdb to not walk linearly through the pid space\n - Correctly implement shadow pids\n - Change the threads per query to a #define\n - Fix kgdb_hex2long to work with negated values\n\nThe threads 0 and -1 are reserved to represent the current task. That\nmeans that CPU 0 will start with a shadow thread id of -2, and CPU 1\nwill have a shadow thread id of -3, etc...\n\nFrom the debugger you can switch to a shadow thread to see what one of\nthe other cpus was doing, however it is not possible to execute run\ncontrol operations on any other cpu execept the cpu executing the\nkgdb_handle_exception().\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "a9b60bf4c29e07a5a2f26a6f74937972fee9b58b", "tree": "6862f0442a9ab4e2da20fb93e3cf3be2c36b76b2", "parents": [ "5f5ddfb3605d2a4f555a7ff034859e623eafcd27" ], "author": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Aug 01 08:39:34 2008 -0500" }, "committer": { "name": "Jason Wessel", "email": "jason.wessel@windriver.com", "time": "Fri Aug 01 08:39:34 2008 -0500" }, "message": "kgdb: fix kgdb_validate_break_address to perform a mem write\n\nA regression to the kgdb core was found in the case of using the\nCONFIG_DEBUG_RODATA kernel option. When this option is on, a breakpoint\ncannot be written into any readonly memory page. When an external\ndebugger requests a breakpoint to get set, the\nkgdb_validate_break_address() was only checking to see if the address\nto place the breakpoint was readable and lacked a write check.\n\nThis patch changes the validate routine to try reading (via the\nbreakpoint set request) and also to try immediately writing the break\npoint. If either fails, an error is correctly returned and the\ndebugger behaves correctly. Then an end user can make the\ndescision to use hardware breakpoints.\n\nAlso update the documentation to reflect that using\nCONFIG_DEBUG_RODATA will inhibit the use of software breakpoints.\n\nSigned-off-by: Jason Wessel \u003cjason.wessel@windriver.com\u003e\n" }, { "commit": "5e710e37bde120bb069f691bee68e69ef4393173", "tree": "f622aa07d6e1fb5851bd814a98945c7fb1ff9cd2", "parents": [ "e0fdace10e75dac67d906213b780ff1b1a4cc360" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Wed Jul 30 13:26:57 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Aug 01 10:46:48 2008 +0200" }, "message": "lockdep: change scheduler annotation\n\nWhile thinking about David\u0027s graph walk lockdep patch it _finally_\ndawned on me that there is no reason we have a lock class per cpu ...\n\nSorry for being dense :-/\n\nThe below changes the annotation from a lock class per cpu, to a single\nnested lock, as the scheduler never holds more that 2 rq locks at a time\nanyway.\n\nIf there was code requiring holding all rq locks this would not work and\nthe original annotation would be the only option, but that not being the\ncase, this is a much lighter one.\n\nCompiles and boots on a 2-way x86_64.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "419ca3f13532793b81aff09f80c60af3eacbb43d", "tree": "eb2d82e52917ebccff269a51e90868ce229336b2", "parents": [ "6e86841d05f371b5b9b86ce76c02aaee83352298" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Tue Jul 29 21:45:03 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 18:38:28 2008 +0200" }, "message": "lockdep: fix combinatorial explosion in lock subgraph traversal\n\nWhen we traverse the graph, either forwards or backwards, we\nare interested in whether a certain property exists somewhere\nin a node reachable in the graph.\n\nTherefore it is never necessary to traverse through a node more\nthan once to get a correct answer to the given query.\n\nTake advantage of this property using a global ID counter so that we\nneed not clear all the markers in all the lock_class entries before\ndoing a traversal. A new ID is choosen when we start to traverse, and\nwe continue through a lock_class only if it\u0027s ID hasn\u0027t been marked\nwith the new value yet.\n\nThis short-circuiting is essential especially for high CPU count\nsystems. The scheduler has a runqueue per cpu, and needs to take\ntwo runqueue locks at a time, which leads to long chains of\nbackwards and forwards subgraphs from these runqueue lock nodes.\nWithout the short-circuit implemented here, a graph traversal on\na runqueue lock can take up to (1 \u003c\u003c (N - 1)) checks on a system\nwith N cpus.\n\nFor anything more than 16 cpus or so, lockdep will eventually bring\nthe machine to a complete standstill.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6679ce6e5f519096612b480d255d9ca97be0c2be", "tree": "cce6814d3e7c62adf59e565fb6ae95fd409f86ab", "parents": [ "2c3d103ba90827cfb478bf10464d9b5b9cea369c", "6e86841d05f371b5b9b86ce76c02aaee83352298" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 18:34:22 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 18:34:22 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into sched/urgent\n" }, { "commit": "4a273f209cc95d148f79b4c96d3d03997b44ffda", "tree": "0d3d0aec4e676baacc2afd2e731b8905257a0b32", "parents": [ "56b906126d33904d4d67615d0d5b95dbdf1f27ca" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 30 10:22:07 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 17:21:01 2008 +0200" }, "message": "sched clock: couple local and remote clocks\n\nWhen taking the time of a remote CPU, use the opportunity to\ncouple (sync) the clocks to each other. (in a monotonic way)\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\n" }, { "commit": "56b906126d33904d4d67615d0d5b95dbdf1f27ca", "tree": "49ff0678cbb0f388fc5fd42e71ec5916fd655193", "parents": [ "18e4e36c66d6edbdefc639692206cdf01e468713" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 30 10:15:55 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 17:20:55 2008 +0200" }, "message": "sched clock: simplify __update_sched_clock()\n\n- return the current clock instead of letting callers\n fetch it from scd-\u003eclock\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\n" }, { "commit": "18e4e36c66d6edbdefc639692206cdf01e468713", "tree": "271a70892fa5808459a1cfc30aa3b5631cd6647d", "parents": [ "50526968e99afbca34924abcb04658b6dd5c5ea5" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 30 10:13:35 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 17:20:49 2008 +0200" }, "message": "sched: eliminate scd-\u003eprev_raw\n\neliminate prev_raw and use tick_raw instead.\n\nIt\u0027s enough to base the current time on the scheduler tick timestamp\nalone - the monotonicity and maximum checks will prevent any damage.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\n" }, { "commit": "50526968e99afbca34924abcb04658b6dd5c5ea5", "tree": "694bf4fae96efb10261e9a30514adf052d994360", "parents": [ "e4e4e534faa3c2be4e165ce414f44b76ada7208c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 30 09:39:48 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 17:20:42 2008 +0200" }, "message": "sched clock: clean up sched_clock_cpu()\n\n- simplify the remote clock rebasing\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\n" }, { "commit": "e4e4e534faa3c2be4e165ce414f44b76ada7208c", "tree": "615280ce53bdba4f99c95616d2a1527c3b863c39", "parents": [ "39675e89fb472c1b9c8e740e00acb1df2bbc6be7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 14 08:50:02 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 31 17:20:29 2008 +0200" }, "message": "sched clock: revert various sched_clock() changes\n\nFound an interactivity problem on a quad core test-system - simple\nCPU loops would occasionally delay the system un an unacceptable way.\n\nAfter much debugging with Peter Zijlstra it turned out that the problem\nis caused by the string of sched_clock() changes - they caused the CPU\nclock to jump backwards a bit - which confuses the scheduler arithmetics.\n\n(which is unsigned for performance reasons)\n\nSo revert:\n\n # c300ba2: sched_clock: and multiplier for TSC to gtod drift\n # c0c8773: sched_clock: only update deltas with local reads.\n # af52a90: sched_clock: stop maximum check on NO HZ\n # f7cce27: sched_clock: widen the max and min time\n\nThis solves the interactivity problems.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Mike Galbraith \u003cefault@gmx.de\u003e\n" }, { "commit": "f718cd4add5aea9d379faff92f162571e356cc5f", "tree": "17ee7b9ed94c819985e4805436dc20b22e587f5f", "parents": [ "5cdc98b8f51310f7cca05ad780f18f80dd9571de" ], "author": { "name": "Andi Kleen", "email": "andi@firstfloor.org", "time": "Tue Jul 29 22:33:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:47 2008 -0700" }, "message": "sched: make scheduler sysfs attributes sysdev class devices\n\nThey are really class devices, but were incorrectly declared. This\nleads to crashes with the recent changes that makes non normal sysdevs\nuse a different prototype.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Pierre Ossman \u003cdrzeus-list@drzeus.cx\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6af8bf3d86d55c98af6e453cb920ddc30867e5c7", "tree": "a82494403b76591082a2dc391da3136c6674b356", "parents": [ "dbacefc9c4f6bd365243db379473ab7041656d90" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Tue Jul 29 22:33:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:47 2008 -0700" }, "message": "workqueues: add comments to __create_workqueue_key()\n\nDmitry Adamushko pointed out that the error handling in\n__create_workqueue_key() is not clear, add the comment.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Dmitry Adamushko \u003cdmitry.adamushko@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "641de9d8f505db055d451b50e6e38117f84e79bb", "tree": "af9cbd5390321a7f5a6b245215c79289930f41bd", "parents": [ "8f3d137e0d6cd470a4e404cbc67480a0febdb0b1" ], "author": { "name": "Uwe Kleine-König", "email": "Uwe.Kleine-Koenig@digi.com", "time": "Tue Jul 29 22:33:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:45 2008 -0700" }, "message": "printk: fix comment for printk ratelimiting\n\nThe comment assumed the burst to be one and the ratelimit used to be named\nprintk_ratelimit_jiffies.\n\nSigned-off-by: Uwe Kleine-König \u003cUwe.Kleine-Koenig@digi.com\u003e\nCc: Dave Young \u003chidave.darkstar@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": "5def9a3a22e09c99717f41ab7f07ec9e1a1f3ec8", "tree": "bff29b34c38efdb4da902e6c6a23be0df8e9b854", "parents": [ "b68bb2632453a9ca7d10a00d79adf60968cb4c05" ], "author": { "name": "Mathieu Desnoyers", "email": "mathieu.desnoyers@polymtl.ca", "time": "Tue Jul 29 22:33:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:45 2008 -0700" }, "message": "markers: fix markers read barrier for multiple probes\n\nPaul pointed out two incorrect read barriers in the marker handler code in\nthe path where multiple probes are connected. Those are ordering reads of\n\"ptype\" (single or multi probe marker), \"multi\" array pointer, and \"multi\"\narray data access.\n\nIt should be ordered like this :\n\nread ptype\nsmp_rmb()\nread multi array pointer\nsmp_read_barrier_depends()\naccess data referenced by multi array pointer\n\nThe code with a single probe connected (optimized case, does not have to\nallocate an array) has correct memory ordering.\n\nIt applies to kernel 2.6.26.x, 2.6.25.x and linux-next.\n\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@linux.vnet.ibm.com\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[2.6.25.x, 2.6.26.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aeed682421a5ebfbf46940e30c3d1caf3bc64304", "tree": "684412db63c92fdee764a65d174834fbf7ef7a84", "parents": [ "93a6557558a13f9ff35213efeca483f353c39dd3" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jul 29 22:33:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cpuset: clean up cpuset hierarchy traversal code\n\nUse cpuset.stack_list rather than kfifo, so we avoid memory allocation\nfor kfifo.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "93a6557558a13f9ff35213efeca483f353c39dd3", "tree": "36a426a166f7992a4cc55c0c950a49326868f2d5", "parents": [ "f5393693e96393131a4a2e2743f883986d508503" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jul 29 22:33:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cpuset: fix wrong calculation of relax domain level\n\nWhen multiple cpusets are overlapping in their \u0027cpus\u0027 and hence they\nform a single sched domain, the largest sched_relax_domain_level among\nthose should be used. But when top_cpuset\u0027s sched_load_balance is\nset, its sched_relax_domain_level is used regardless other sub-cpusets\u0027.\n\nThis patch fixes it by walking the cpuset hierarchy to find the largest\nsched_relax_domain_level.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f5393693e96393131a4a2e2743f883986d508503", "tree": "91c6b0687939b9361c8cdcebb05494f1d0524f72", "parents": [ "8d1e6266f512b3a94ef6d33528ff385f1aea0392" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Tue Jul 29 22:33:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cpuset: speed up sched domain partition\n\nAll child cpusets contain a subset of the parent\u0027s cpus, so we can skip\nthem when partitioning sched domains. This decreases \u0027csa\u0027 greately for\ncpusets with multi-level hierarchy.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nReviewed-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8d1e6266f512b3a94ef6d33528ff385f1aea0392", "tree": "92db3bfbd7bd667a98210a506aadb9db74e15fcd", "parents": [ "4ef1b0fd61333b3b81ebe29283898c6c84b15c9f" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jul 29 22:33:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cpuset: a bit cleanup for scan_for_empty_cpusets()\n\nclean up hierarchy traversal code\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Cliff Wickman \u003ccpw@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "55b6fd0162ace1e0f1b52c8c092565c115127ef6", "tree": "a2ace1f82ebdfe88d72e8c3ad7596e9d18ae2e35", "parents": [ "36553434f475a84b653e25e74490ee8df43b86d5" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jul 29 22:33:20 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cgroup: uninline cgroup_has_css_refs()\n\nIt\u0027s not small enough, and has 2 call sites.\n\n text data bss dec hex filename\n12813 1676 4832 19321 4b79 cgroup.o.orig\n12775 1676 4832 19283 4b53 cgroup.o\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "36553434f475a84b653e25e74490ee8df43b86d5", "tree": "869f827ebb4974674a26de22db6c15f122e63618", "parents": [ "5a3eb9f6b7c598529f832b8baa6458ab1cbab2c6" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jul 29 22:33:19 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cgroup: remove duplicate code in allocate_cg_link()\n\n- just call free_cg_links() in allocate_cg_links()\n- the list will get initialized in allocate_cg_links(), so don\u0027t init\n it twice\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5a3eb9f6b7c598529f832b8baa6458ab1cbab2c6", "tree": "16d1d481e86fb222e4e18c0681c1e5a4710675fb", "parents": [ "1d1958f05095a7e9ecbba86235122784a3d1b561" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Tue Jul 29 22:33:18 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:44 2008 -0700" }, "message": "cgroup: fix possible memory leak\n\nThere\u0027s a leak if copy_from_user() returns failure.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1a4e564b7db999fbe5d88318c96ac8747699d417", "tree": "6451a0bd33533f7a214faa205ad174978458781e", "parents": [ "e958d3ace7791f33518f0259cd3cf229408b135c" ], "author": { "name": "Magnus Damm", "email": "damm@igel.co.jp", "time": "Tue Jul 29 22:32:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 30 09:41:43 2008 -0700" }, "message": "resource: add resource_size()\n\nAvoid one-off errors by introducing a resource_size() function.\n\nSigned-off-by: Magnus Damm \u003cdamm@igel.co.jp\u003e\nCc: Ben Dooks \u003cben-linux@fluff.org\u003e\nCc: Jean Delvare \u003ckhali@linux-fr.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "39675e89fb472c1b9c8e740e00acb1df2bbc6be7", "tree": "cce6814d3e7c62adf59e565fb6ae95fd409f86ab", "parents": [ "6e86841d05f371b5b9b86ce76c02aaee83352298", "2c3d103ba90827cfb478bf10464d9b5b9cea369c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 30 10:38:30 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 30 10:38:30 2008 +0200" }, "message": "Merge branch \u0027sched/urgent\u0027 into sched/clock\n" }, { "commit": "1d9b9f6a53d77ed801ba875f937d6dabbfc381ce", "tree": "36ea93b80a444c3b37111e352790ebc07f29379f", "parents": [ "a3ad7f128c637b7612ebeacb1f85fec933bb1195", "12c0b20fa4afb5c8a377d6987fb2dcf353e1dce1" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 18:14:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 18:14:24 2008 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (21 commits)\n x86/PCI: use dev_printk when possible\n PCI: add D3 power state avoidance quirk\n PCI: fix bogus \"\u0027device\u0027 may be used uninitialized\" warning in pci_slot\n PCI: add an option to allow ASPM enabled forcibly\n PCI: disable ASPM on pre-1.1 PCIe devices\n PCI: disable ASPM per ACPI FADT setting\n PCI MSI: Don\u0027t disable MSIs if the mask bit isn\u0027t supported\n PCI: handle 64-bit resources better on 32-bit machines\n PCI: rewrite PCI BAR reading code\n PCI: document pci_target_state\n PCI hotplug: fix typo in pcie hotplug output\n x86 gart: replace to_pages macro with iommu_num_pages\n x86, AMD IOMMU: replace to_pages macro with iommu_num_pages\n iommu: add iommu_num_pages helper function\n dma-coherent: add documentation to new interfaces\n Cris: convert to using generic dma-coherent mem allocator\n Sh: use generic per-device coherent dma allocator\n ARM: support generic per-device coherent dma mem\n Generic dma-coherent: fix DMA_MEMORY_EXCLUSIVE\n x86: use generic per-device dma coherent allocator\n ...\n" }, { "commit": "cddb8a5c14aa89810b40495d94d3d2a0faee6619", "tree": "d0b47b071f7d2dd1d6f9c36084aa8cfcef90d1da", "parents": [ "7906d00cd1f687268f0a3599442d113767795ae6" ], "author": { "name": "Andrea Arcangeli", "email": "andrea@qumranet.com", "time": "Mon Jul 28 15:46:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 16:30:21 2008 -0700" }, "message": "mmu-notifiers: core\n\nWith KVM/GFP/XPMEM there isn\u0027t just the primary CPU MMU pointing to pages.\n There are secondary MMUs (with secondary sptes and secondary tlbs) too.\nsptes in the kvm case are shadow pagetables, but when I say spte in\nmmu-notifier context, I mean \"secondary pte\". In GRU case there\u0027s no\nactual secondary pte and there\u0027s only a secondary tlb because the GRU\nsecondary MMU has no knowledge about sptes and every secondary tlb miss\nevent in the MMU always generates a page fault that has to be resolved by\nthe CPU (this is not the case of KVM where the a secondary tlb miss will\nwalk sptes in hardware and it will refill the secondary tlb transparently\nto software if the corresponding spte is present). The same way\nzap_page_range has to invalidate the pte before freeing the page, the spte\n(and secondary tlb) must also be invalidated before any page is freed and\nreused.\n\nCurrently we take a page_count pin on every page mapped by sptes, but that\nmeans the pages can\u0027t be swapped whenever they\u0027re mapped by any spte\nbecause they\u0027re part of the guest working set. Furthermore a spte unmap\nevent can immediately lead to a page to be freed when the pin is released\n(so requiring the same complex and relatively slow tlb_gather smp safe\nlogic we have in zap_page_range and that can be avoided completely if the\nspte unmap event doesn\u0027t require an unpin of the page previously mapped in\nthe secondary MMU).\n\nThe mmu notifiers allow kvm/GRU/XPMEM to attach to the tsk-\u003emm and know\nwhen the VM is swapping or freeing or doing anything on the primary MMU so\nthat the secondary MMU code can drop sptes before the pages are freed,\navoiding all page pinning and allowing 100% reliable swapping of guest\nphysical address space. Furthermore it avoids the code that teardown the\nmappings of the secondary MMU, to implement a logic like tlb_gather in\nzap_page_range that would require many IPI to flush other cpu tlbs, for\neach fixed number of spte unmapped.\n\nTo make an example: if what happens on the primary MMU is a protection\ndowngrade (from writeable to wrprotect) the secondary MMU mappings will be\ninvalidated, and the next secondary-mmu-page-fault will call\nget_user_pages and trigger a do_wp_page through get_user_pages if it\ncalled get_user_pages with write\u003d1, and it\u0027ll re-establishing an updated\nspte or secondary-tlb-mapping on the copied page. Or it will setup a\nreadonly spte or readonly tlb mapping if it\u0027s a guest-read, if it calls\nget_user_pages with write\u003d0. This is just an example.\n\nThis allows to map any page pointed by any pte (and in turn visible in the\nprimary CPU MMU), into a secondary MMU (be it a pure tlb like GRU, or an\nfull MMU with both sptes and secondary-tlb like the shadow-pagetable layer\nwith kvm), or a remote DMA in software like XPMEM (hence needing of\nschedule in XPMEM code to send the invalidate to the remote node, while no\nneed to schedule in kvm/gru as it\u0027s an immediate event like invalidating\nprimary-mmu pte).\n\nAt least for KVM without this patch it\u0027s impossible to swap guests\nreliably. And having this feature and removing the page pin allows\nseveral other optimizations that simplify life considerably.\n\nDependencies:\n\n1) mm_take_all_locks() to register the mmu notifier when the whole VM\n isn\u0027t doing anything with \"mm\". This allows mmu notifier users to keep\n track if the VM is in the middle of the invalidate_range_begin/end\n critical section with an atomic counter incraese in range_begin and\n decreased in range_end. No secondary MMU page fault is allowed to map\n any spte or secondary tlb reference, while the VM is in the middle of\n range_begin/end as any page returned by get_user_pages in that critical\n section could later immediately be freed without any further\n -\u003einvalidate_page notification (invalidate_range_begin/end works on\n ranges and -\u003einvalidate_page isn\u0027t called immediately before freeing\n the page). To stop all page freeing and pagetable overwrites the\n mmap_sem must be taken in write mode and all other anon_vma/i_mmap\n locks must be taken too.\n\n2) It\u0027d be a waste to add branches in the VM if nobody could possibly\n run KVM/GRU/XPMEM on the kernel, so mmu notifiers will only enabled if\n CONFIG_KVM\u003dm/y. In the current kernel kvm won\u0027t yet take advantage of\n mmu notifiers, but this already allows to compile a KVM external module\n against a kernel with mmu notifiers enabled and from the next pull from\n kvm.git we\u0027ll start using them. And GRU/XPMEM will also be able to\n continue the development by enabling KVM\u003dm in their config, until they\n submit all GRU/XPMEM GPLv2 code to the mainline kernel. Then they can\n also enable MMU_NOTIFIERS in the same way KVM does it (even if KVM\u003dn).\n This guarantees nobody selects MMU_NOTIFIER\u003dy if KVM and GRU and XPMEM\n are all \u003dn.\n\nThe mmu_notifier_register call can fail because mm_take_all_locks may be\ninterrupted by a signal and return -EINTR. Because mmu_notifier_reigster\nis used when a driver startup, a failure can be gracefully handled. Here\nan example of the change applied to kvm to register the mmu notifiers.\nUsually when a driver startups other allocations are required anyway and\n-ENOMEM failure paths exists already.\n\n struct kvm *kvm_arch_create_vm(void)\n {\n struct kvm *kvm \u003d kzalloc(sizeof(struct kvm), GFP_KERNEL);\n+ int err;\n\n if (!kvm)\n return ERR_PTR(-ENOMEM);\n\n INIT_LIST_HEAD(\u0026kvm-\u003earch.active_mmu_pages);\n\n+ kvm-\u003earch.mmu_notifier.ops \u003d \u0026kvm_mmu_notifier_ops;\n+ err \u003d mmu_notifier_register(\u0026kvm-\u003earch.mmu_notifier, current-\u003emm);\n+ if (err) {\n+ kfree(kvm);\n+ return ERR_PTR(err);\n+ }\n+\n return kvm;\n }\n\nmmu_notifier_unregister returns void and it\u0027s reliable.\n\nThe patch also adds a few needed but missing includes that would prevent\nkernel to compile after these changes on non-x86 archs (x86 didn\u0027t need\nthem by luck).\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: fix mm/filemap_xip.c build]\n[akpm@linux-foundation.org: fix mm/mmu_notifier.c build]\nSigned-off-by: Andrea Arcangeli \u003candrea@qumranet.com\u003e\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Jack Steiner \u003csteiner@sgi.com\u003e\nCc: Robin Holt \u003cholt@sgi.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Kanoj Sarcar \u003ckanojsarcar@yahoo.com\u003e\nCc: Roland Dreier \u003crdreier@cisco.com\u003e\nCc: Steve Wise \u003cswise@opengridcomputing.com\u003e\nCc: Avi Kivity \u003cavi@qumranet.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Anthony Liguori \u003caliguori@us.ibm.com\u003e\nCc: Chris Wright \u003cchrisw@redhat.com\u003e\nCc: Marcelo Tosatti \u003cmarcelo@kvack.org\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Izik Eidus \u003cizike@qumranet.com\u003e\nCc: Anthony Liguori \u003caliguori@us.ibm.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "cb28a1bbdb4790378e7366d6c9ee1d2340b84f92", "tree": "316436f77dac75335fd2c3ef5f109e71606c50d3", "parents": [ "b6d4f7e3ef25beb8c658c97867d98883e69dc544", "f934fb19ef34730263e6afc01e8ec27a8a71470f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jul 29 00:07:55 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Jul 29 00:07:55 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into core/generic-dma-coherent\n\nConflicts:\n\n\tarch/x86/Kconfig\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9e3ee1c39c0cc71222f9980ccbf87fe072897eef", "tree": "99462000e6f0d4f907cb2fc690f19d4d441ba0f3", "parents": [ "e56b3bc7942982ac2589c942fb345e38bc7a341a", "f934fb19ef34730263e6afc01e8ec27a8a71470f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 23:32:00 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 23:32:00 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into cpus4096\n\nConflicts:\n\n\tkernel/stop_machine.c\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e56b3bc7942982ac2589c942fb345e38bc7a341a", "tree": "8130492904f5bb9cff061f62ebb1c5d6eed3308b", "parents": [ "414f746d232d41ed6ae8632c4495ae795373c44b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 11:32:33 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 22:20:41 2008 +0200" }, "message": "cpu masks: optimize and clean up cpumask_of_cpu()\n\nClean up and optimize cpumask_of_cpu(), by sharing all the zero words.\n\nInstead of stupidly generating all possible i\u003d0...NR_CPUS 2^i patterns\ncreating a huge array of constant bitmasks, realize that the zero words\ncan be shared.\n\nIn other words, on a 64-bit architecture, we only ever need 64 of these\narrays - with a different bit set in one single world (with enough zero\nwords around it so that we can create any bitmask by just offsetting in\nthat big array). And then we just put enough zeroes around it that we\ncan point every single cpumask to be one of those things.\n\nSo when we have 4k CPU\u0027s, instead of having 4k arrays (of 4k bits each,\nwith one bit set in each array - 2MB memory total), we have exactly 64\narrays instead, each 8k bits in size (64kB total).\n\nAnd then we just point cpumask(n) to the right position (which we can\ncalculate dynamically). Once we have the right arrays, getting\n\"cpumask(n)\" ends up being:\n\n static inline const cpumask_t *get_cpu_mask(unsigned int cpu)\n {\n const unsigned long *p \u003d cpu_bit_bitmap[1 + cpu % BITS_PER_LONG];\n p -\u003d cpu / BITS_PER_LONG;\n return (const cpumask_t *)p;\n }\n\nThis brings other advantages and simplifications as well:\n\n - we are not wasting memory that is just filled with a single bit in\n various different places\n\n - we don\u0027t need all those games to re-create the arrays in some dense\n format, because they\u0027re already going to be dense enough.\n\nif we compile a kernel for up to 4k CPU\u0027s, \"wasting\" that 64kB of memory\nis a non-issue (especially since by doing this \"overlapping\" trick we\nprobably get better cache behaviour anyway).\n\n[ mingo@elte.hu:\n\n Converted Linus\u0027s mails into a commit. See:\n\n http://lkml.org/lkml/2008/7/27/156\n http://lkml.org/lkml/2008/7/28/320\n\n Also applied a family filter - which also has the side-effect of leaving\n out the bits where Linus calls me an idio... Oh, never mind ;-)\n]\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: Al Viro \u003cviro@ZenIV.linux.org.uk\u003e\nCc: Mike Travis \u003ctravis@sgi.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "414f746d232d41ed6ae8632c4495ae795373c44b", "tree": "167f9bc8f139c6e82e6732b38c7a938b8a9d31cd", "parents": [ "5a7a201c51c324876d00a54e7208af6af12d1ca4", "c9272c4f9fbe2087beb3392f526dc5b19efaa56b" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 21:14:43 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 21:14:43 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into cpus4096\n" }, { "commit": "0e241ffd306c0896bb9959be7faa4d4cfcb706d9", "tree": "220450d1e1aa58a65e8ed2cf655b4fa890f67d64", "parents": [ "c9272c4f9fbe2087beb3392f526dc5b19efaa56b" ], "author": { "name": "Randy Dunlap", "email": "randy.dunlap@oracle.com", "time": "Thu Jul 24 16:58:42 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 18:12:36 2008 +0200" }, "message": "locking: fix mutex @key parameter kernel-doc notation\n\nFix @key parameter to mutex_init() and one of its callers.\n\nWarning(linux-2.6.26-git11//drivers/base/class.c:210): No description found for parameter \u0027key\u0027\n\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nAcked-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "37eaf8c7463e53cf1acf025fb566fb6c4573297f", "tree": "9df7e9e3e7722d9ddf257e19fd8551425d27a292", "parents": [ "58f250714f2bfa3514798fde8b9d38a15e4a9836", "784e2d76007f90d69341b95967160c4fb7829299" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 08:37:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 28 08:37:46 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:\n stop_machine: fix up ftrace.c\n stop_machine: Wean existing callers off stop_machine_run()\n stop_machine(): stop_machine_run() changed to use cpu mask\n Hotplug CPU: don\u0027t check cpu_online after take_cpu_down\n Simplify stop_machine\n stop_machine: add ALL_CPUS option\n module: fix build warning with !CONFIG_KALLSYMS\n" }, { "commit": "2c3d103ba90827cfb478bf10464d9b5b9cea369c", "tree": "96c795c57a69a2a94ff1f077b1285136f4647b25", "parents": [ "e26873bb10f722f10b1af9de05119a3d7cbc07b2" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Fri Jul 25 19:45:00 2008 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 16:35:03 2008 +0200" }, "message": "sched: move sched_clock before first use\n\nMove sched_clock() up to stop warning: weak declaration of `sched_clock\u0027\nafter first use results in unspecified behavior (if -fno-unit-at-a-time).\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Mike Travis \u003ctravis@sgi.com\u003e\nCc: Ben Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Linuxppc-dev@ozlabs.org\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e26873bb10f722f10b1af9de05119a3d7cbc07b2", "tree": "f5cbfab3e45ee49ff36d18784d2e789687415e15", "parents": [ "94f565598827e2015dce97f4c1ac4871ab84407b" ], "author": { "name": "roel kluin", "email": "roel.kluin@gmail.com", "time": "Tue Jul 22 16:51:15 2008 -0400" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 15:57:24 2008 +0200" }, "message": "sched: test runtime rather than period in global_rt_runtime()\n\nTest runtime rather than period\n\nSigned-off-by: Roel Kluin \u003croel.kluin@gmail.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "94f565598827e2015dce97f4c1ac4871ab84407b", "tree": "a982f636ede6e597fdc8542eb8ed1d54a14482a5", "parents": [ "157124c11f4217733691223ecf5ee47558ae9495" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Sun Jul 27 20:27:06 2008 +0900" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 14:37:38 2008 +0200" }, "message": "sched: fix SCHED_HRTICK dependency\n\nCurrently, it seems SCHED_HRTICK allowed for !SMP. But, it seems to have\nno dependency of it. Fix it.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "157124c11f4217733691223ecf5ee47558ae9495", "tree": "bb6a8c8374ddef78ae3b07c004e5a794796d5289", "parents": [ "c9272c4f9fbe2087beb3392f526dc5b19efaa56b" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Mon Jul 28 11:53:11 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 28 12:01:58 2008 +0200" }, "message": "sched: fix warning in hrtick_start_fair()\n\nBenjamin Herrenschmidt reported:\n\n\u003e I get that on ppc64 ...\n\u003e\n\u003e In file included from kernel/sched.c:1595:\n\u003e kernel/sched_fair.c: In function ‘hrtick_start_fair’:\n\u003e kernel/sched_fair.c:902: warning: comparison of distinct pointer types lacks a cast\n\u003e\n\u003e Probably harmless but annoying.\n\ns64 delta \u003d slice - ran;\n\n--\u003e\tdelta \u003d max(10000LL, delta);\n\nProbably ppc64\u0027s s64 is long vs long long..\n\nI think hpa was looking at sanitizing all these 64bit types across the\narchitectures.\n\nUse max_t with an explicit type meanwhile.\n\nReported-by: Benjamin Herrenschmid \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "784e2d76007f90d69341b95967160c4fb7829299", "tree": "adf7f8a8a5470080efcc971559b79f10b44042e6", "parents": [ "9b1a4d38373a5581a4e01032a3ccdd94cd93477b" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:31 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:31 2008 +1000" }, "message": "stop_machine: fix up ftrace.c\n\nSimple conversion.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Abhishek Sagar \u003csagar.abhishek@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\n" }, { "commit": "9b1a4d38373a5581a4e01032a3ccdd94cd93477b", "tree": "3d0f0ebd1ac4512551fc35e57d173870eb060c0c", "parents": [ "eeec4fad963490821348a331cca6102ae1c4a7a3" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:30 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:31 2008 +1000" }, "message": "stop_machine: Wean existing callers off stop_machine_run()\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "eeec4fad963490821348a331cca6102ae1c4a7a3", "tree": "163a7d9414d719fccac096d1ba822416f705b397", "parents": [ "04321587584272f4e8b9818f319f40caf8eeee13" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:30 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:30 2008 +1000" }, "message": "stop_machine(): stop_machine_run() changed to use cpu mask\n\nInstead of a \"cpu\" arg with magic values NR_CPUS (any cpu) and ~0 (all\ncpus), pass a cpumask_t. Allow NULL for the common case (where we\ndon\u0027t care which CPU the function is run on): temporary cpumask_t\u0027s\nare usually considered bad for stack space.\n\nThis deprecates stop_machine_run, to be removed soon when all the\ncallers are dead.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "04321587584272f4e8b9818f319f40caf8eeee13", "tree": "5bf00c36a182644cc2c4fe2577b14e050a49418b", "parents": [ "ffdb5976c47609c862917d4c186ecbb5706d2dda" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:29 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:29 2008 +1000" }, "message": "Hotplug CPU: don\u0027t check cpu_online after take_cpu_down\n\nAkinobu points out that if take_cpu_down() succeeds, the cpu must be offline.\nRemove the cpu_online() check, and put a BUG_ON().\n\nQuoting Akinobu Mita:\n Actually the cpu_online() check was necessary before appling this\n stop_machine: simplify patch.\n\n With old __stop_machine_run(), __stop_machine_run() could succeed\n (return !IS_ERR(p) value) even if take_cpu_down() returned non-zero value.\n The return value of take_cpu_down() was obtained through kthread_stop()..\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: \"Akinobu Mita\" \u003cakinobu.mita@gmail.com\u003e\n" }, { "commit": "ffdb5976c47609c862917d4c186ecbb5706d2dda", "tree": "7a8485260922290080094adc25f3cbebd4ad506b", "parents": [ "5c2aed622571ac7c3c6ec182d6d3c318e4b45c8b" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:28 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:29 2008 +1000" }, "message": "Simplify stop_machine\n\nstop_machine creates a kthread which creates kernel threads. We can\ncreate those threads directly and simplify things a little. Some care\nmust be taken with CPU hotunplug, which has special needs, but that code\nseems more robust than it was in the past.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\n" }, { "commit": "5c2aed622571ac7c3c6ec182d6d3c318e4b45c8b", "tree": "0a3b422b16cd0725eebbe5047fd5482583279d8a", "parents": [ "15bba37d62351749c3915add81f673b256952ee1" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Thu Feb 28 11:33:03 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:28 2008 +1000" }, "message": "stop_machine: add ALL_CPUS option\n\n-allow stop_mahcine_run() to call a function on all cpus. Calling\n stop_machine_run() with a \u0027ALL_CPUS\u0027 invokes this new behavior.\n stop_machine_run() proceeds as normal until the calling cpu has\n invoked \u0027fn\u0027. Then, we tell all the other cpus to call \u0027fn\u0027.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\u003e\nSigned-off-by: Mathieu Desnoyers \u003cmathieu.desnoyers@polymtl.ca\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCC: Adrian Bunk \u003cbunk@stusta.de\u003e\nCC: Andi Kleen \u003candi@firstfloor.org\u003e\nCC: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCC: Christoph Hellwig \u003chch@infradead.org\u003e\nCC: mingo@elte.hu\nCC: akpm@osdl.org\n" }, { "commit": "15bba37d62351749c3915add81f673b256952ee1", "tree": "4696ad74ea04df9f3b7091859225ecc123be7197", "parents": [ "837b41b5de356aa67abb2cadb5eef3efc7776f91" ], "author": { "name": "WANG Cong", "email": "xiyou.wangcong@gmail.com", "time": "Thu Jul 24 15:41:48 2008 +0100" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Mon Jul 28 12:16:28 2008 +1000" }, "message": "module: fix build warning with !CONFIG_KALLSYMS\n\nThis patch fixed the warning:\n\n CC kernel/module.o\n /home/wangcong/Projects/linux-2.6/kernel/module.c:332: warning:\n‘lookup_symbol’ defined but not used\n\nSigned-off-by: WANG Cong \u003cwangcong@zeuux.org\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "940389b8afad6495211614c13eb91ef7001773ec", "tree": "92c581cc9dc7a067899a6a28e382e4099dfe8ead", "parents": [ "837b41b5de356aa67abb2cadb5eef3efc7776f91" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Mon Jul 28 00:48:12 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 27 16:12:28 2008 -0700" }, "message": "task IO accounting: move all IO statistics in struct task_io_accounting\n\nSimplify the code of include/linux/task_io_accounting.h.\n\nIt is also more reasonable to have all the task i/o-related statistics in a\nsingle struct (task_io_accounting).\n\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2106b531eaa2edd0c2dfa735a0556c08c7ba3c86", "tree": "423fcf0ac74f0dd5d88864b7bd99a1160129e064", "parents": [ "e338125b8a886923ba8367207c144764dc352584", "ba661292a2bc6ddd305a212b0526e5dc22195fe7" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 27 23:15:26 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 27 23:15:26 2008 +0200" }, "message": "Merge branch \u0027timers/urgent\u0027 of ssh://master.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into timers/urgent\n" }, { "commit": "5995477ab7f3522c497c9c4a1c55373e9d655574", "tree": "a147fb61642a7ac5441855964eb97a2ff1e37202", "parents": [ "605ccb73f6a1c891a16268b3a2923208fc637958" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Sun Jul 27 17:29:15 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 27 09:58:20 2008 -0700" }, "message": "task IO accounting: improve code readability\n\nPut all i/o statistics in struct proc_io_accounting and use inline functions to\ninitialize and increment statistics, removing a lot of single variable\nassignments.\n\nThis also reduces the kernel size as following (with CONFIG_TASK_XACCT\u003dy and\nCONFIG_TASK_IO_ACCOUNTING\u003dy).\n\n text data bss dec hex filename\n 11651 0 0 11651 2d83 kernel/exit.o.before\n 11619 0 0 11619 2d63 kernel/exit.o.after\n 10886 132 136 11154 2b92 kernel/fork.o.before\n 10758 132 136 11026 2b12 kernel/fork.o.after\n\n 3082029 807968 4818600 8708597 84e1f5 vmlinux.o.before\n 3081869 807968 4818600 8708437 84e155 vmlinux.o.after\n\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "605ccb73f6a1c891a16268b3a2923208fc637958", "tree": "598c26eeb3e911cc2effc203c89fe414241532f2", "parents": [ "375614422509c98a1f3dbef410206bf81775169b" ], "author": { "name": "Andrea Righi", "email": "righi.andrea@gmail.com", "time": "Sun Jul 27 13:39:03 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 27 09:58:20 2008 -0700" }, "message": "tracing: remove unused variable\n\nRemove the following warning with CONFIG_TRACING\u003dy:\n\n\tkernel/trace/trace.c: In function ‘s_next’:\n\tkernel/trace/trace.c:1186: warning: unused variable ‘last_ent’\n\nSigned-off-by: Andrea Righi \u003crighi.andrea@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bfbcf034798b2ca45338cee5049b5694b7ddc865", "tree": "51ca2687c318033b7a41533ecdfd2801a7241327", "parents": [ "8be1a6d6c77ab4532e4476fdb8177030ef48b52c" ], "author": { "name": "Al Viro", "email": "viro@ZenIV.linux.org.uk", "time": "Sun Jul 27 06:31:22 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 27 09:45:34 2008 -0700" }, "message": "lost sysctl fix\n\ntry_attach() should walk into the matching subdirectory, not the first one...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Valdis.Kletnieks@vt.edu\nTested-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3f8206d496e9e9495afb1d4e70d29712b4d403c9", "tree": "5bedea1aff8b5e584fbf8497c80fcaccf9242d69", "parents": [ "964bd183624c03680796b63b4ab97ee3905a806a" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 03:46:43 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:42 2008 -0400" }, "message": "[PATCH] get rid of indirect users of namei.h\n\nfs.h needs path.h, not namei.h; nfs_fs.h doesn\u0027t need it at all.\nSeveral places in the tree needed direct include.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7f2da1e7d0330395e5e9e350b879b98a1ea495df", "tree": "adc01ced45bb1de10fe58511e7143bbbd138a192", "parents": [ "8bb79224b87aab92071e94d46e70bd160d89bf34" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat May 10 20:44:54 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:20 2008 -0400" }, "message": "[PATCH] kill altroot\n\nlong overdue...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "e6305c43eda10ebfd2ad9e35d6e172ccc7bb3695", "tree": "8a95bd0e27fb3ce895cca9ef91af2e1605e4cdab", "parents": [ "1bd5191d9f5d1928c4efdf604c4164b04bb88dbe" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 15 21:03:57 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:14 2008 -0400" }, "message": "[PATCH] sanitize -\u003epermission() prototype\n\n* kill nameidata * argument; map the 3 bits in -\u003eflags anybody cares\n about to new MAY_... ones and pass with the mask.\n* kill redundant gfs2_iop_permission()\n* sanitize ecryptfs_permission()\n* fix remaining places where -\u003epermission() instances might barf on new\n MAY_... found in mask.\n\nThe obvious next target in that direction is permission(9)\n\nfolded fix for nfs_permission() breakage from Miklos Szeredi \u003cmszeredi@suse.cz\u003e\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9043476f726802f4b00c96d0c4f418dde48d1304", "tree": "9ead0294bc75e219c12b44fc7eb8996248400f2a", "parents": [ "ae7edecc9b8810770a8e5cb9a466ea4bdcfa8401" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 15 08:54:06 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:12 2008 -0400" }, "message": "[PATCH] sanitize proc_sysctl\n\n* keep references to ctl_table_head and ctl_table in /proc/sys inodes\n* grab the former during operations, use the latter for access to\n entry if that succeeds\n* have -\u003ed_compare() check if table should be seen for one who does lookup;\n that allows us to avoid flipping inodes - if we have the same name resolve\n to different things, we\u0027ll just keep several dentries and -\u003ed_compare()\n will reject the wrong ones.\n* have -\u003elookup() and -\u003ereaddir() scan the table of our inode first, then\n walk all ctl_table_header and scan -\u003eattached_by for those that are\n attached to our directory.\n* implement -\u003egetattr().\n* get rid of insane amounts of tree-walking\n* get rid of the need to know dentry in -\u003epermission() and of the contortions\n induced by that.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "ae7edecc9b8810770a8e5cb9a466ea4bdcfa8401", "tree": "8c0a244f4aea3eca5d8edf45665266b007eb046e", "parents": [ "bd7b1533cd6a68c734062aa69394bec7e2b1718e" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 15 06:33:31 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:11 2008 -0400" }, "message": "[PATCH] sysctl: keep track of tree relationships\n\nIn a sense, that\u0027s the heart of the series. It\u0027s based on the following\nproperty of the trees we are actually asked to add: they can be split into\nstem that is already covered by registered trees and crown that is entirely\nnew. IOW, if a/b and a/c/d are introduced by our tree, then a/c is also\nintroduced by it.\n\nThat allows to associate tree and table entry with each node in the union;\nwhile directory nodes might be covered by many trees, only one will cover\nthe node by its crown. And that will allow much saner logics for /proc/sys\nin the next patches. This patch introduces the data structures needed to\nkeep track of that.\n\nWhen adding a sysctl table, we find a \"parent\" one. Which is to say,\nfind the deepest node on its stem that already is present in one of the\ntables from our table set or its ancestor sets. That table will be our\nparent and that node in it - attachment point. Add our table to list\nanchored in parent, have it refer the parent and contents of attachment\npoint. Also remember where its crown lives.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "f7e6ced4061da509f737541ca4dbd44d83a6e82f", "tree": "065a6907a085854da1eb176da1314c472e69a364", "parents": [ "734550921e9b7ab924a43aa3d0bd4239dac4fbf1" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 15 01:44:23 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:09 2008 -0400" }, "message": "[PATCH] allow delayed freeing of ctl_table_header\n\nRefcount the sucker; instead of freeing it by the end of unregistration\njust drop the refcount and free only when it hits zero. Make sure that\nwe _always_ make -\u003eunregistering non-NULL in start_unregistering().\n\nThat allows anybody to get a reference to such puppy, preventing its\nfreeing and reuse. It does *not* block unregistration. Anybody who\nholds such a reference can\n\t* try to grab a \"use\" reference (ctl_head_grab()); that will\nsucceeds if and only if it hadn\u0027t entered unregistration yet. If it\nsucceeds, we can use it in all normal ways until we release the \"use\"\nreference (with ctl_head_finish()). Note that this relies on having\n-\u003eunregistering become non-NULL in all cases when one starts to unregister\nthe sucker.\n\t* keep pointers to ctl_table entries; they *can* be freed if\nthe entire thing is unregistered. However, if ctl_head_grab() succeeds,\nwe know that unregistration had not happened (and will not happen until\nctl_head_finish()) and such pointers can be used safely.\n\nIOW, now we can have inodes under /proc/sys keep references to ctl_table\nentries, protecting them with references to ctl_table_header and\ngrabbing the latter for the duration of operations that require access\nto ctl_table. That won\u0027t cause deadlocks, since unregistration will not\nbe stopped by mere keeping a reference to ctl_table_header.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "734550921e9b7ab924a43aa3d0bd4239dac4fbf1", "tree": "7be4b0808ba9860f1d953b45120262a277866021", "parents": [ "7ac6cd653d7c31ad6b7bb5b88c549c4ebf628c34" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Jul 14 21:22:20 2008 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Jul 26 20:53:08 2008 -0400" }, "message": "[PATCH] beginning of sysctl cleanup - ctl_table_set\n\nNew object: set of sysctls [currently - root and per-net-ns].\nContains: pointer to parent set, list of tables and \"should I see this set?\"\nmethod (-\u003eis_seen(set)).\nCurrent lists of tables are subsumed by that; net-ns contains such a beast.\n-\u003elookup() for ctl_table_root returns pointer to ctl_table_set instead of\nthat to -\u003elist of that ctl_table_set.\n\n[folded compile fixes by rdd for configs without sysctl]\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a048d3aff8b828b6c0fa7ddd90a531248ab4e0f9", "tree": "8edfb5bd152aef0d48c4a165247906db347c3a56", "parents": [ "fb3b80614438f8b73b3879a19350439d6aa402da", "1fe371044b21b226b96a9dd959e971b50b28c78e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 13:25:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 13:25:47 2008 -0700" }, "message": "Merge branch \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n ftrace: fix modular build\n ftrace: disable tracing on acpi idle calls\n ftrace: remove latency-tracer leftover\n ftrace: only trace preempt off with preempt tracer\n ftrace: fix 4d3702b6 (post-v2.6.26): WARNING: at kernel/lockdep.c:2731 check_flags (ftrace)\n" }, { "commit": "96930a6365c99c160138a395566e360b27348b8f", "tree": "c78d1d7f2cfcc863aa38726eddd3783814c6d174", "parents": [ "0e1451da4f928ae1c9d5ca617faebde9f02985db" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 19:46:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:11 2008 -0700" }, "message": "make cgroup_seqfile_release() static\n\ncgroup_seqfile_release() can become static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nAcked-by: Paul Menage \u003cmenage@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": "85ba2d862e521375a8ee01526c5c46b1f24bb4af", "tree": "f098555cb580b2864f145aa845b574f07d2cf694", "parents": [ "1f5a4ad97a0e7b663d527ecc02aabe203d000d91" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: wait_task_inactive\n\nThis extends wait_task_inactive() with a new argument so it can be used in\na \"soft\" mode where it will check for the task changing state unexpectedly\nand back off. There is no change to existing callers. This lays the\ngroundwork to allow robust, noninvasive tracing that can try to sample a\nblocked thread but back off safely if it wakes up.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b787f7ba677840da16a2228c16571ce8a1fcb799", "tree": "b1838c4ae7f38c00efc2375871a255275500f245", "parents": [ "2b2a1ff64afbadac842bbc58c5166962cf4f7664" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Fri Jul 25 19:45:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Jul 26 12:00:09 2008 -0700" }, "message": "tracehook: force signal_pending()\n\nThis defines a new hook tracehook_force_sigpending() that lets tracing\ncode decide to force TIF_SIGPENDING on in recalc_sigpending().\n\nThis is not used yet, so it compiles away to nothing for now. It lays the\ngroundwork for new tracing code that can interrupt a task synthetically\nwithout actually sending a signal.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReviewed-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "2b2a1ff64afbadac842bbc58c5166962cf4f7664" }