)]}' { "log": [ { "commit": "394ee07623cf556c8daae2b3c00cf5fea47f0811", "tree": "f3568c9d779c282732c7bbeccb75a4bb3041b857", "parents": [ "023c54c42288416b4f43c67bfd5049a76926fad6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 30 19:07:14 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:43 2009 +0200" }, "message": "perf_counter: provide generic callchain bits\n\nProvide the generic callchain support bits. If hw_event-\u003ecallchain is\nset the arch specific perf_callchain() function is called upon to\nprovide a perf_callchain_entry structure filled with the current\ncallchain.\n\nIf it does so, it is added to the overflow output event.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090330171024.254266860@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5ed00415e304203a0a9dcaef226d6d3f1106070e", "tree": "5e1d53fcae6ea973dfb61972f38c269a8fe095bc", "parents": [ "78d613eb129fc4edf0e2cabfcc6a4c5285482d21" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 30 19:07:12 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:42 2009 +0200" }, "message": "perf_counter: re-arrange the perf_event_type\n\nBreaks ABI yet again :-)\n\nChange the event type so that [0, 2^31-1] are regular event types, but\n[2^31, 2^32-1] forms a bitmask for overflow events.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090330171024.047961770@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "0a4a93919bdc5cee48fe4367591e8e0449c1086c", "tree": "0f0d7ac3ee4f61c1e7e53f0ba4e3b01e0e4ac728", "parents": [ "195564390210977954fe4ef45b39cdee34f41b59" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 30 19:07:05 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:38 2009 +0200" }, "message": "perf_counter: executable mmap() information\n\nCurrently the profiling information returns userspace IPs but no way\nto correlate them to userspace code. Userspace could look into\n/proc/$pid/maps but that might not be current or even present anymore\nat the time of analyzing the IPs.\n\nTherefore provide means to track the mmap information and provide it\nin the output stream.\n\nXXX: only covers mmap()/munmap(), mremap() and mprotect() are missing.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nOrig-LKML-Reference: \u003c20090330171023.417259499@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "38ff667b321b00f5e6830e93fb4ab11a653a2920", "tree": "37c24148228d978824a014899f4984072da4e077", "parents": [ "925d519ab82b6dd7aca9420d809ee83819c08db2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 30 19:07:03 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:37 2009 +0200" }, "message": "perf_counter: fix update_userpage()\n\nIt just occured to me it is possible to have multiple contending\nupdates of the userpage (mmap information vs overflow vs counter).\nThis would break the seqlock logic.\n\nIt appear the arch code uses this from NMI context, so we cannot\npossibly serialize its use, therefore separate the data_head update\nfrom it and let it return to its original use.\n\nThe arch code needs to make sure there are no contending callers by\ndisabling the counter before using it -- powerpc appears to do this\nnicely.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090330171023.241410660@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "925d519ab82b6dd7aca9420d809ee83819c08db2", "tree": "aa05bd7eb607915aa691d5434ec74521b487b466", "parents": [ "53cfbf593758916aac41db728f029986a62f1254" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 30 19:07:02 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:36 2009 +0200" }, "message": "perf_counter: unify and fix delayed counter wakeup\n\nWhile going over the wakeup code I noticed delayed wakeups only work\nfor hardware counters but basically all software counters rely on\nthem.\n\nThis patch unifies and generalizes the delayed wakeup to fix this\nissue.\n\nSince we\u0027re dealing with NMI context bits here, use a cmpxchg() based\nsingle link list implementation to track counters that have pending\nwakeups.\n\n[ This should really be generic code for delayed wakeups, but since we\n cannot use cmpxchg()/xchg() in generic code, I\u0027ve let it live in the\n perf_counter code. -- Eric Dumazet could use it to aggregate the\n network wakeups. ]\n\nFurthermore, the x86 method of using TIF flags was flawed in that its\nquite possible to end up setting the bit on the idle task, loosing the\nwakeup.\n\nThe powerpc method uses per-cpu storage and does appear to be\nsufficient.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090330171023.153932974@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "53cfbf593758916aac41db728f029986a62f1254", "tree": "c58a9c0f6e3cc050235e736e288e268bdb1f37eb", "parents": [ "7730d8655880f41f2ea519aca2ca6a1413dfd2c9" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Wed Mar 25 22:46:58 2009 +1100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:36 2009 +0200" }, "message": "perf_counter: record time running and time enabled for each counter\n\nImpact: new functionality\n\nCurrently, if there are more counters enabled than can fit on the CPU,\nthe kernel will multiplex the counters on to the hardware using\nround-robin scheduling. That isn\u0027t too bad for sampling counters, but\nfor counting counters it means that the value read from a counter\nrepresents some unknown fraction of the true count of events that\noccurred while the counter was enabled.\n\nThis remedies the situation by keeping track of how long each counter\nis enabled for, and how long it is actually on the cpu and counting\nevents. These times are recorded in nanoseconds using the task clock\nfor per-task counters and the cpu clock for per-cpu counters.\n\nThese values can be supplied to userspace on a read from the counter.\nUserspace requests that they be supplied after the counter value by\nsetting the PERF_FORMAT_TOTAL_TIME_ENABLED and/or\nPERF_FORMAT_TOTAL_TIME_RUNNING bits in the hw_event.read_format field\nwhen creating the counter. (There is no way to change the read format\nafter the counter is created, though it would be possible to add some\nway to do that.)\n\nUsing this information it is possible for userspace to scale the count\nit reads from the counter to get an estimate of the true count:\n\ntrue_count_estimate \u003d count * total_time_enabled / total_time_running\n\nThis also lets userspace detect the situation where the counter never\ngot to go on the cpu: total_time_running \u003d\u003d 0.\n\nThis functionality has been requested by the PAPI developers, and will\nbe generally needed for interpreting the count values from counting\ncounters correctly.\n\nIn the implementation, this keeps 5 time values (in nanoseconds) for\neach counter: total_time_enabled and total_time_running are used when\nthe counter is in state OFF or ERROR and for reporting back to\nuserspace. When the counter is in state INACTIVE or ACTIVE, it is the\ntstamp_enabled, tstamp_running and tstamp_stopped values that are\nrelevant, and total_time_enabled and total_time_running are determined\nfrom them. (tstamp_stopped is only used in INACTIVE state.) The\nreason for doing it like this is that it means that only counters\nbeing enabled or disabled at sched-in and sched-out time need to be\nupdated. There are no new loops that iterate over all counters to\nupdate total_time_enabled or total_time_running.\n\nThis also keeps separate child_total_time_running and\nchild_total_time_enabled fields that get added in when reporting the\ntotals to userspace. They are separate fields so that they can be\natomic. We don\u0027t want to use atomics for total_time_running,\ntotal_time_enabled etc., because then we would have to use atomic\nsequences to update them, which are slower than regular arithmetic and\nmemory accesses.\n\nIt is possible to measure total_time_running by adding a task_clock\ncounter to each group of counters, and total_time_enabled can be\nmeasured approximately with a top-level task_clock counter (though\ninaccuracies will creep in if you need to disable and enable groups\nsince it is not possible in general to disable/enable the top-level\ntask_clock counter simultaneously with another group). However, that\nadds extra overhead - I measured around 15% increase in the context\nswitch latency reported by lat_ctx (from lmbench) when a task_clock\ncounter was added to each of 2 groups, and around 25% increase when a\ntask_clock counter was added to each of 4 groups. (In both cases a\ntop-level task-clock counter was also added.)\n\nIn contrast, the code added in this commit gives better information\nwith no overhead that I could measure (in fact in some cases I\nmeasured lower times with this code, but the differences were all less\nthan one standard deviation).\n\n[ v2: address review comments by Andrew Morton. ]\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nOrig-LKML-Reference: \u003c18890.6578.728637.139402@cargo.ozlabs.ibm.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ea5d20cf99db5d26d43b6d322d3ace17e08a6552", "tree": "287bb37825294d4f3cd943d83b6fb7d4b7009630", "parents": [ "63e35b25d6b5c3136d22ef249dbbf96716aa08bf" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Mar 25 12:30:25 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:34 2009 +0200" }, "message": "perf_counter: optionally provide the pid/tid of the sampled task\n\nAllow cpu wide counters to profile userspace by providing what process\nthe sample belongs to.\n\nThis raises the first issue with the output type, lots of these\noptions: group, tid, callchain, etc.. are non-exclusive and could be\ncombined, suggesting a bitfield.\n\nHowever, things like the mmap() data stream doesn\u0027t fit in that.\n\nHow to split the type field...\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nOrig-LKML-Reference: \u003c20090325113317.013775235@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "5c1481943250ab65fa5130e05ec479c93216e9f7", "tree": "8fa6bb7e95a91b03e54fc01af6f9192a4eb7d4a6", "parents": [ "b9cacc7bf193df16532bfa7d7ca77fe50fc3c2e6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Wed Mar 25 12:30:23 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:33 2009 +0200" }, "message": "perf_counter: output objects\n\nProvide a {type,size} header for each output entry.\n\nThis should provide extensible output, and the ability to mix multiple streams.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nOrig-LKML-Reference: \u003c20090325113316.831607932@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c7138f37f905bb7987b1f9f5a8ee73667db39f25", "tree": "8d1c2bf404f1179d35e8b35b0166c7bf0b39840e", "parents": [ "f66c6b2066b44d4ab8e8ac1ee4cae543738fe2ac" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Tue Mar 24 13:18:16 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:32 2009 +0200" }, "message": "perf_counter: fix perf_poll()\n\nImpact: fix kerneltop 100% CPU usage\n\nOnly return a poll event when there\u0027s actually been one, poll_wait()\ndoesn\u0027t actually wait for the waitq you pass it, it only enqueues\nyou on it.\n\nOnly once all FDs have been iterated and none of thm returned a\npoll-event will it schedule().\n\nAlso make it return POLL_HUP when there\u0027s not mmap() area to read from.\n\nFurther, fix a silly bug in the write code.\n\nReported-by: Mike Galbraith \u003cefault@gmx.de\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nOrig-LKML-Reference: \u003c1237897096.24918.181.camel@twins\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "7b732a75047738e4f85438ed2f9cd34bf5f2a19a", "tree": "bae36de785ac819ceef6fa5e1b7884a4a421cc3c", "parents": [ "b09d2501ed3d294619cbfbcf828ad39324d0e548" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 23 18:22:10 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:27 2009 +0200" }, "message": "perf_counter: new output ABI - part 1\n\nImpact: Rework the perfcounter output ABI\n\nuse sys_read() only for instant data and provide mmap() output for all\nasync overflow data.\n\nThe first mmap() determines the size of the output buffer. The mmap()\nsize must be a PAGE_SIZE multiple of 1+pages, where pages must be a\npower of 2 or 0. Further mmap()s of the same fd must have the same\nsize. Once all maps are gone, you can again mmap() with a new size.\n\nIn case of 0 extra pages there is no data output and the first page\nonly contains meta data.\n\nWhen there are data pages, a poll() event will be generated for each\nfull page of data. Furthermore, the output is circular. This means\nthat although 1 page is a valid configuration, its useless, since\nwe\u0027ll start overwriting it the instant we report a full page.\n\nFuture work will focus on the output format (currently maintained)\nwhere we\u0027ll likey want each entry denoted by a header which includes a\ntype and length.\n\nFurther future work will allow to splice() the fd, also containing the\nasync overflow data -- splice() would be mutually exclusive with\nmmap() of the data.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090323172417.470536358@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9ab772cd535c4b256a577eae516f9c7462346b2d", "tree": "55af69a2eaeaa952f447b74cce74eee9f82cfaf9", "parents": [ "37d81828385f8ff823caaaf1a83e72d065b6cfa1" ], "author": { "name": "Eric Paris", "email": "eparis@redhat.com", "time": "Mon Mar 23 18:22:09 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:26 2009 +0200" }, "message": "mutex: add atomic_dec_and_mutex_lock()\n\nMuch like the atomic_dec_and_lock() function in which we take an hold a\nspin_lock if we drop the atomic to 0 this function takes and holds the\nmutex if we dec the atomic to 0.\n\nSigned-off-by: Eric Paris \u003ceparis@redhat.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090323172417.410913479@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "37d81828385f8ff823caaaf1a83e72d065b6cfa1", "tree": "972900a193a6a5ab1bdc14adcd7ab72bf0a51c13", "parents": [ "96f6d4444302bb2ea2cf409529eef816462f6ce0" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Mon Mar 23 18:22:08 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:26 2009 +0200" }, "message": "perf_counter: add an mmap method to allow userspace to read hardware counters\n\nImpact: new feature giving performance improvement\n\nThis adds the ability for userspace to do an mmap on a hardware counter\nfd and get access to a read-only page that contains the information\nneeded to translate a hardware counter value to the full 64-bit\ncounter value that would be returned by a read on the fd. This is\nuseful on architectures that allow user programs to read the hardware\ncounters, such as PowerPC.\n\nThe mmap will only succeed if the counter is a hardware counter\nmonitoring the current process.\n\nOn my quad 2.5GHz PowerPC 970MP machine, userspace can read a counter\nand translate it to the full 64-bit value in about 30ns using the\nmmapped page, compared to about 830ns for the read syscall on the\ncounter, so this does give a significant performance improvement.\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nOrig-LKML-Reference: \u003c20090323172417.297057964@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "96f6d4444302bb2ea2cf409529eef816462f6ce0", "tree": "34ae6944b4a8e6db89c50dba5a3a8b9da3315122", "parents": [ "f4a2deb4860497f4332cf6a1acddab3dd628ddf0" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 23 18:22:07 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:25 2009 +0200" }, "message": "perf_counter: avoid recursion\n\nTracepoint events like lock_acquire and software counters like\npagefaults can recurse into the perf counter code again, avoid that.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090323172417.152096433@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f4a2deb4860497f4332cf6a1acddab3dd628ddf0", "tree": "1655c7c000edce20d2c5b54cf12f99c23340371e", "parents": [ "af9522cf133e9be6da8525a46a9ed7e7659f0e1a" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Mon Mar 23 18:22:06 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:25 2009 +0200" }, "message": "perf_counter: remove the event config bitfields\n\nSince the bitfields turned into a bit of a mess, remove them and rely on\ngood old masks.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nOrig-LKML-Reference: \u003c20090323172417.059499915@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9aaa131a279834dff75c290c91f0058f62d72d46", "tree": "d996052d5cdc48b38e300d2b3d87f64cf97ede15", "parents": [ "db4fb5acf20295063d1d5105e67724eb51440207" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Sat Mar 21 15:31:47 2009 +1100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:18 2009 +0200" }, "message": "perf_counter: fix type/event_id layout on big-endian systems\n\nImpact: build fix for powerpc\n\nCommit db3a944aca35ae61 (\"perf_counter: revamp syscall input ABI\")\nexpanded the hw_event.type field into a union of structs containing\nbitfields. In particular it introduced a type field and a raw_type\nfield, with the intention that the 1-bit raw_type field should\noverlay the most-significant bit of the 8-bit type field, and in fact\nperf_counter_alloc() now assumes that (or at least, assumes that\nraw_type doesn\u0027t overlay any of the bits that are 1 in the values of\nPERF_TYPE_{HARDWARE,SOFTWARE,TRACEPOINT}).\n\nUnfortunately this is not true on big-endian systems such as PowerPC,\nwhere bitfields are laid out from left to right, i.e. from most\nsignificant bit to least significant. This means that setting\nhw_event.type \u003d PERF_TYPE_SOFTWARE will set hw_event.raw_type to 1.\n\nThis fixes it by making the layout depend on whether or not\n__BIG_ENDIAN_BITFIELD is defined. It\u0027s a bit ugly, but that\u0027s what\nwe get for using bitfields in a user/kernel ABI.\n\nAlso, that commit didn\u0027t fix up some places in arch/powerpc/kernel/\nperf_counter.c where hw_event.raw and hw_event.event_id were used.\nThis fixes them too.\n\nSigned-off-by: Paul Mackerras \u003cpaulus@samba.org\u003e\n" }, { "commit": "0322cd6ec504b0bf08ca7b2c3d7f43bda37d79c9", "tree": "8e5487e1a6700eb865ec1f268d51e9d6d3d38a71", "parents": [ "b8e83514b64577b48bfb794fe85fcde40a9343ca" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:19 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:17 2009 +0200" }, "message": "perf_counter: unify irq output code\n\nImpact: cleanup\n\nHaving 3 slightly different copies of the same code around does nobody\nany good. First step in revamping the output format.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nOrig-LKML-Reference: \u003c20090319194233.929962222@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "b8e83514b64577b48bfb794fe85fcde40a9343ca", "tree": "3fd79b41c917f56fe5a5b1f779b892110e0ec909", "parents": [ "e077df4f439681e43f0db8255b2d215b342ebdc6" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:18 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:17 2009 +0200" }, "message": "perf_counter: revamp syscall input ABI\n\nImpact: modify ABI\n\nThe hardware/software classification in hw_event-\u003etype became a little\nstrained due to the addition of tracepoint tracing.\n\nInstead split up the field and provide a type field to explicitly specify\nthe counter type, while using the event_id field to specify which event to\nuse.\n\nRaw counters still work as before, only the raw config now goes into\nraw_event.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nOrig-LKML-Reference: \u003c20090319194233.836807573@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "e077df4f439681e43f0db8255b2d215b342ebdc6", "tree": "2deebf630405b09cee8d43056ecd110f4bb0fb70", "parents": [ "f16009527595ee562308653bc3d0039166d2ab15" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:17 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:16 2009 +0200" }, "message": "perf_counter: hook up the tracepoint events\n\nImpact: new perfcounters feature\n\nEnable usage of tracepoints as perf counter events.\n\ntracepoint event ids can be found in /debug/tracing/event/*/*/id\nand (for now) are represented as -65536+id in the type field.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nOrig-LKML-Reference: \u003c20090319194233.744044174@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4a0deca657f3dbb8a707b5dc8f173beec01e7ed2", "tree": "b52fb2d5fa3391f5eac37ca599413b4e8d187c0c", "parents": [ "01ef09d9ffb5ce9f8d62d1e5206da3d5ca612acc" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:12 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:15 2009 +0200" }, "message": "perf_counter: generic context switch event\n\nImpact: cleanup\n\nUse the generic software events for context switches.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nOrig-LKML-Reference: \u003c20090319194233.283522645@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "01ef09d9ffb5ce9f8d62d1e5206da3d5ca612acc", "tree": "7259d26f86fa93e7d50f9d886f62b2a3054aa4c3", "parents": [ "b6c5a71da1477d261bc36254fe1f20d32b57598d" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Mar 19 20:26:11 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:30:15 2009 +0200" }, "message": "perf_counter: fix uninitialized usage of event_list\n\nImpact: fix boot crash\n\nWhen doing the generic context switch event I ran into some early\nboot hangs, which were caused by inf func recursion (event, fault,\nevent, fault).\n\nI eventually tracked it down to event_list not being initialized\nat the time of the first event. Fix this.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Steven Rostedt \u003crostedt@goodmis.org\u003e\nOrig-LKML-Reference: \u003c20090319194233.195392657@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "592903cdcbf606a838056bae6d03fc557806c914", "tree": "6851004446a405654ff3f1c39a70b313456544a5", "parents": [ "d6d020e9957745c61285ef3da9f294c5e6801f0f" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Mar 13 12:21:36 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:29:43 2009 +0200" }, "message": "perf_counter: add an event_list\n\nI noticed that the counter_list only includes top-level counters, thus\nperf_swcounter_event() will miss sw-counters in groups.\n\nSince perf_swcounter_event() also wants an RCU safe list, create a new\nevent_list that includes all counters and uses RCU list ops and use call_rcu\nto free the counter structure.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d6d020e9957745c61285ef3da9f294c5e6801f0f", "tree": "efbd81871b58dbb026f19e812b224e1add2f3b76", "parents": [ "ac17dc8e58f3069ea895cfff963adf98ff3cf6b2" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Mar 13 12:21:35 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:29:41 2009 +0200" }, "message": "perf_counter: hrtimer based sampling for software time events\n\nUse hrtimers to profile timer based sampling for the software time\ncounters.\n\nThis allows platforms without hardware counter support to still\nperform sample based profiling.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "ac17dc8e58f3069ea895cfff963adf98ff3cf6b2", "tree": "fe07b13dd100fd1f650d8437296f5c6908e9adea", "parents": [ "7dd1fcc258b65da718f01e4684a7b9244501a9fb" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Mar 13 12:21:34 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:29:40 2009 +0200" }, "message": "perf_counter: provide major/minor page fault software events\n\nProvide separate sw counters for major and minor page faults.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "15dbf27cc18559a14e99609f78678aa86b9c6ff1", "tree": "4b88cc01991cd994777c418c4420474588b5ce0d", "parents": [ "82bae4f8c2fd64a2bb1e2e72c508853ed2b4a299" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Fri Mar 13 12:21:32 2009 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:29:36 2009 +0200" }, "message": "perf_counter: software counter event infrastructure\n\nProvide generic software counter infrastructure that supports\nsoftware events.\n\nThis will be used to allow sample based profiling based on software\nevents such as pagefaults. The current infrastructure can only\nprovide a count of such events, no place information.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "f541ae326fa120fa5c57433e4d9a133df212ce41", "tree": "bdbd94ec72cfc601118051cb35e8617d55510177", "parents": [ "e255357764f92afcafafbd4879b222b8c752065a", "0221c81b1b8eb0cbb6b30a0ced52ead32d2b4e4c" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:02:57 2009 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Apr 06 09:02:57 2009 +0200" }, "message": "Merge branch \u0027linus\u0027 into perfcounters/core-v2\n\nMerge reason: we have gathered quite a few conflicts, need to merge upstream\n\nConflicts:\n\tarch/powerpc/kernel/Makefile\n\tarch/x86/ia32/ia32entry.S\n\tarch/x86/include/asm/hardirq.h\n\tarch/x86/include/asm/unistd_32.h\n\tarch/x86/include/asm/unistd_64.h\n\tarch/x86/kernel/cpu/common.c\n\tarch/x86/kernel/irq.c\n\tarch/x86/kernel/syscall_table_32.S\n\tarch/x86/mm/iomap_32.c\n\tinclude/linux/sched.h\n\tkernel/Makefile\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "48f286a28fe13fcbc510720fcffb872a184b51dd", "tree": "f50d868589138628c04dd5600a029ef80fa21da2", "parents": [ "ea431793f198e26d1553f36ed8b5a830b531eee4", "fa15ce8ad59e9653d50b8596596cb02d3566d4aa" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:38:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:38:37 2009 -0700" }, "message": "Merge branch \u0027for-next\u0027 of git://git.o-hand.com/linux-mfd\n\n* \u0027for-next\u0027 of git://git.o-hand.com/linux-mfd:\n mfd: fix da903x warning\n mfd: fix MAINTAINERS entry\n mfd: Use the value of the final spin when reading the AUXADC\n mfd: Storage class should be before const qualifier\n mfd: PASIC3: supply clock_rate to DS1WM via driver_data\n mfd: remove DS1WM clock handling\n mfd: remove unused PASIC3 bus_shift field\n pxa/magician: remove deprecated .bus_shift from PASIC3 platform_data\n mfd: convert PASIC3 to use MFD core\n mfd: convert DS1WM to use MFD core\n mfd: Support active high IRQs on WM835x\n mfd: Use bulk read to fill WM8350 register cache\n mfd: remove duplicated #include from pcf50633\n" }, { "commit": "32fb6c17566ec66de87324a834c7776f40e35e78", "tree": "87b8ed5d66495536fbb452255c3eacd1cfb0c43a", "parents": [ "45e36c1666aa6c8b0c538abcf984b336184d8c3f", "7ec0a7290797f57b780f792d12f4bcc19c83aa4f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:16:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:16:25 2009 -0700" }, "message": "Merge branch \u0027release\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6\n\n* \u0027release\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits)\n ACPI: processor: use .notify method instead of installing handler directly\n ACPI: button: use .notify method instead of installing handler directly\n ACPI: support acpi_device_ops .notify methods\n toshiba-acpi: remove MAINTAINERS entry\n ACPI: battery: asynchronous init\n acer-wmi: Update copyright notice \u0026 documentation\n acer-wmi: Cleanup the failure cleanup handling\n acer-wmi: Blacklist Acer Aspire One\n video: build fix\n thinkpad-acpi: rework brightness support\n thinkpad-acpi: enhanced debugging messages for the fan subdriver\n thinkpad-acpi: enhanced debugging messages for the hotkey subdriver\n thinkpad-acpi: enhanced debugging messages for rfkill subdrivers\n thinkpad-acpi: restrict access to some firmware LEDs\n thinkpad-acpi: remove HKEY disable functionality\n thinkpad-acpi: add new debug helpers and warn of deprecated atts\n thinkpad-acpi: add missing log levels\n thinkpad-acpi: cleanup debug helpers\n thinkpad-acpi: documentation cleanup\n thinkpad-acpi: drop ibm-acpi alias\n ...\n" }, { "commit": "3516c6a8dc0b1153c611c4cf0dc4a51631f052bb", "tree": "c54a5fc916cbe73e43dee20902642f367f44a551", "parents": [ "714f83d5d9f7c785f622259dad1f4fad12d64664", "ba0e1ebb7ea0616eebc29d2077355bacea62a9d8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:06:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:06:45 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (714 commits)\n Staging: sxg: slicoss: Specify the license for Sahara SXG and Slicoss drivers\n Staging: serqt_usb: fix build due to proc tty changes\n Staging: serqt_usb: fix checkpatch errors\n Staging: serqt_usb: add TODO file\n Staging: serqt_usb: Lindent the code\n Staging: add USB serial Quatech driver\n staging: document that the wifi staging drivers a bit better\n Staging: echo cleanup\n Staging: BUG to BUG_ON changes\n Staging: remove some pointless conditionals before kfree_skb()\n Staging: line6: fix build error, select SND_RAWMIDI\n Staging: line6: fix checkpatch errors in variax.c\n Staging: line6: fix checkpatch errors in toneport.c\n Staging: line6: fix checkpatch errors in pcm.c\n Staging: line6: fix checkpatch errors in midibuf.c\n Staging: line6: fix checkpatch errors in midi.c\n Staging: line6: fix checkpatch errors in dumprequest.c\n Staging: line6: fix checkpatch errors in driver.c\n Staging: line6: fix checkpatch errors in audio.c\n Staging: line6: fix checkpatch errors in pod.c\n ...\n" }, { "commit": "714f83d5d9f7c785f622259dad1f4fad12d64664", "tree": "20563541ae438e11d686b4d629074eb002a481b7", "parents": [ "8901e7ffc2fa78ede7ce9826dbad68a3a25dc2dc", "645dae969c3b8651c5bc7c54a1835ec03820f85f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:04:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 11:04:19 2009 -0700" }, "message": "Merge branch \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027tracing-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits)\n tracing, net: fix net tree and tracing tree merge interaction\n tracing, powerpc: fix powerpc tree and tracing tree interaction\n ring-buffer: do not remove reader page from list on ring buffer free\n function-graph: allow unregistering twice\n trace: make argument \u0027mem\u0027 of trace_seq_putmem() const\n tracing: add missing \u0027extern\u0027 keywords to trace_output.h\n tracing: provide trace_seq_reserve()\n blktrace: print out BLK_TN_MESSAGE properly\n blktrace: extract duplidate code\n blktrace: fix memory leak when freeing struct blk_io_trace\n blktrace: fix blk_probes_ref chaos\n blktrace: make classic output more classic\n blktrace: fix off-by-one bug\n blktrace: fix the original blktrace\n blktrace: fix a race when creating blk_tree_root in debugfs\n blktrace: fix timestamp in binary output\n tracing, Text Edit Lock: cleanup\n tracing: filter fix for TRACE_EVENT_FORMAT events\n ftrace: Using FTRACE_WARN_ON() to check \"freed record\" in ftrace_release()\n x86: kretprobe-booster interrupt emulation code fix\n ...\n\nFix up trivial conflicts in\n arch/parisc/include/asm/ftrace.h\n include/linux/memory.h\n kernel/extable.c\n kernel/module.c\n" }, { "commit": "90975ef71246c5c688ead04e8ff6f36dc92d28b3", "tree": "eda44b2efe91509719b0e62219c2efec13a9e762", "parents": [ "cab4e4c43f92582a2bfc026137b3d8a175bd0360", "558f6ab9106e6be701acb0257e7171df1bbccf04" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 10:33:07 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 10:33:07 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: (36 commits)\n cpumask: remove cpumask allocation from idle_balance, fix\n numa, cpumask: move numa_node_id default implementation to topology.h, fix\n cpumask: remove cpumask allocation from idle_balance\n x86: cpumask: x86 mmio-mod.c use cpumask_var_t for downed_cpus\n x86: cpumask: update 32-bit APM not to mug current-\u003ecpus_allowed\n x86: microcode: cleanup\n x86: cpumask: use work_on_cpu in arch/x86/kernel/microcode_core.c\n cpumask: fix CONFIG_CPUMASK_OFFSTACK\u003dy cpu hotunplug crash\n numa, cpumask: move numa_node_id default implementation to topology.h\n cpumask: convert node_to_cpumask_map[] to cpumask_var_t\n cpumask: remove x86 cpumask_t uses.\n cpumask: use cpumask_var_t in uv_flush_tlb_others.\n cpumask: remove cpumask_t assignment from vector_allocation_domain()\n cpumask: make Xen use the new operators.\n cpumask: clean up summit\u0027s send_IPI functions\n cpumask: use new cpumask functions throughout x86\n x86: unify cpu_callin_mask/cpu_callout_mask/cpu_initialized_mask/cpu_sibling_setup_mask\n cpumask: convert struct cpuinfo_x86\u0027s llc_shared_map to cpumask_var_t\n cpumask: convert node_to_cpumask_map[] to cpumask_var_t\n x86: unify 32 and 64-bit node_to_cpumask_map\n ...\n" }, { "commit": "cab4e4c43f92582a2bfc026137b3d8a175bd0360", "tree": "2f0e8fbc2e7d2d0cd6f1658a5e084a53b1e83a2e", "parents": [ "5412b5399e095730008a14f2107331b2123733e4", "49502677e11079c2e3e01867c922a894ce06a8be" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 10:30:21 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 10:30:21 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param:\n module: use strstarts()\n strstarts: helper function for !strncmp(str, prefix, strlen(prefix))\n arm: allow usage of string functions in linux/string.h\n module: don\u0027t use stop_machine on module load\n module: create a request_module_nowait()\n module: include other structures in module version check\n module: remove the SHF_ALLOC flag on the __versions section.\n module: clarify the force-loading taint message.\n module: Export symbols needed for Ksplice\n Ksplice: Add functions for walking kallsyms symbols\n module: remove module_text_address()\n module: __module_address\n module: Make find_symbol return a struct kernel_symbol\n kernel/module.c: fix an unused goto label\n param: fix charp parameters set via sysfs\n\nFix trivial conflicts in kernel/extable.c manually.\n" }, { "commit": "e4c393fd551654179c46b65e4a70ea20d831c783", "tree": "087c5c1f514a2ffeb75c925545e584fb269bea3a", "parents": [ "0a053e8c71d666daf30da2d407147b1293923d8b", "38a6ed3ed8e108b662f4016a1ebf068dcf4c1ef4" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 10:23:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Apr 05 10:23:25 2009 -0700" }, "message": "Merge branch \u0027printk-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027printk-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n printk: correct the behavior of printk_timed_ratelimit()\n vsprintf: unify the format decoding layer for its 3 users, cleanup\n fix regression from \"vsprintf: unify the format decoding layer for its 3 users\"\n vsprintf: fix bug in negative value printing\n vsprintf: unify the format decoding layer for its 3 users\n vsprintf: add binary printf\n printk: introduce printk_once()\n\nFix trivial conflicts (printk_once vs log_buf_kexec_setup() added near\neach other) in include/linux/kernel.h.\n" }, { "commit": "46ec8598fde74ba59703575c22a6fb0b6b151bb6", "tree": "21936a8b188c58e69e2bd5d951df28e6e05930fa", "parents": [ "478c6a43fcbc6c11609f8cee7c7b57223907754f" ], "author": { "name": "Bjorn Helgaas", "email": "bjorn.helgaas@hp.com", "time": "Mon Mar 30 17:48:13 2009 +0000" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 02:25:07 2009 -0400" }, "message": "ACPI: support acpi_device_ops .notify methods\n\nThis patch adds support for ACPI device driver .notify() methods. If\nsuch a method is present, Linux/ACPI installs a handler for device\nnotifications (but not for system notifications such as Bus Check,\nDevice Check, etc). When a device notification occurs, Linux/ACPI\npasses it on to the driver\u0027s .notify() method.\n\nIn most cases, this removes the need for drivers to install their own\nhandlers for device-specific notifications.\n\nFor fixed hardware devices like some power and sleep buttons, there\u0027s\nno notification value because there\u0027s no control method to execute a\nNotify opcode. When a fixed hardware device generates an event, we\nhandle it the same as a regular device notification, except we send\na ACPI_FIXED_HARDWARE_EVENT value. This is outside the normal 0x0-0xff\nrange used by Notify opcodes.\n\nSeveral drivers install their own handlers for system Bus Check and\nDevice Check notifications so they can support hot-plug. This patch\ndoesn\u0027t affect that usage.\n\nSigned-off-by: Bjorn Helgaas \u003cbjorn.helgaas@hp.com\u003e\nReviewed-by: Alex Chiang \u003cachiang@hp.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "478c6a43fcbc6c11609f8cee7c7b57223907754f", "tree": "a7f7952099da60d33032aed6de9c0c56c9f8779e", "parents": [ "8a3f257c704e02aee9869decd069a806b45be3f1", "6bb597507f9839b13498781e481f5458aea33620" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 02:14:15 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 02:14:15 2009 -0400" }, "message": "Merge branch \u0027linus\u0027 into release\n\nConflicts:\n\tarch/x86/kernel/cpu/cpufreq/longhaul.c\n\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "33526a53600ac887d100e3c9b4be3637ac8ae3a5", "tree": "646cb10e5f02bbbd913eafe9dbc1cfa80166f20e", "parents": [ "47ae106d3f37e1fd715975eaf8130e20e171cf52", "786c221a37d3931189d9c9421f63dec92f4d698b" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:51:51 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:51:51 2009 -0400" }, "message": "Merge branch \u0027x2apic\u0027 into release\n" }, { "commit": "e2fae0abf6a9c7a2da1a481b7adb4e24f7778992", "tree": "dbf0007632ca651baa9c7193b0ead3547c656c33", "parents": [ "fff251f6b26bb8f4de15fa5906cf2611623b3661", "c07c9a78a95cab0a9bf0b253d0c52e7798af38c5" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:51:16 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:51:16 2009 -0400" }, "message": "Merge branch \u0027constify\u0027 into release\n" }, { "commit": "7c27fd19b6d985957424348361afa066ff4c74d8", "tree": "276063bee8ebb64088e274fd152d0c40e6573372", "parents": [ "336d63b8a3cadc1c678f4b16d6105633c7f6af75", "16dd55f309cf69a648ca3b1fc04b3b6f079c8be0" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:42:14 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:42:14 2009 -0400" }, "message": "Merge branch \u0027sony-laptop\u0027 into release\n" }, { "commit": "12648810506eaa063dc23b66514fbb4796f34312", "tree": "4cd16290c9e1350d946a92ca8d5624cdd683b739", "parents": [ "7329e9356e5b46e11a1781dff2dc64c2e3284884", "03ae61dd5701092aabb60a8cae9929dbf8dc25c6" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:40:06 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:40:06 2009 -0400" }, "message": "Merge branch \u0027video\u0027 into release\n\nConflicts:\n\tdrivers/acpi/video.c\n\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "3266d63c0684138f4900d4e5c6fbfab59e054afc", "tree": "83b67cc2dca6dfb25e81ff21716fdd4c56b39623", "parents": [ "4926a236396ffc82be004cc89223a7f2747a44dc", "7faa144a518c456e2057918f030f50100144ccc6" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:39:26 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:39:26 2009 -0400" }, "message": "Merge branch \u0027battery\u0027 into release\n" }, { "commit": "4f3bff70a64b105921dac8630bc4381567b21ebd", "tree": "2601d581e21c4ca9392bbf85dfb981a2181ecba6", "parents": [ "2ddb9f17ba026122b53b34fb4182ece91e24cf92", "03a971a2899886006f19f3495973bbd646d8bdae" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:39:12 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:39:12 2009 -0400" }, "message": "Merge branch \u0027thermal\u0027 into release\n" }, { "commit": "493837009665a5ea1d91ed5fe4bab0ed546cae86", "tree": "de73923763862e145949b57249b1472446009fec", "parents": [ "e857b33d1879fc4284e3151222eee2415c1de88a", "8308e8ab70fd5d7b78afb133c51c5079548ba84f" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:38:51 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:38:51 2009 -0400" }, "message": "Merge branch \u0027driver-ops-cleanup\u0027 into release\n" }, { "commit": "9a38f4eec57cc5104b6a85bc6d0a91b268fbe803", "tree": "da01b5dd92d4076878003a8886fc2c9265e578f5", "parents": [ "67dc092187626ac55a60877485f78bc291cbfa81", "018f452e9d9d0cb5c3e8d33fd94dc6cd3c520a8f" ], "author": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:38:31 2009 -0400" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Sun Apr 05 01:38:31 2009 -0400" }, "message": "Merge branch \u0027bjorn-initcall-cleanup\u0027 into release\n" }, { "commit": "7d33ccbeecd8393cc690cf9a71008236cdd7cc2c", "tree": "93b0356d89abf9ffa1c90da3a9b2e30b34074089", "parents": [ "b72019dbd126e60bb5f9f350f76127b1527facba" ], "author": { "name": "Philipp Zabel", "email": "philipp.zabel@gmail.com", "time": "Tue Feb 17 10:09:19 2009 +0100" }, "committer": { "name": "Samuel Ortiz", "email": "samuel@sortiz.org", "time": "Sun Apr 05 00:32:22 2009 +0200" }, "message": "mfd: remove DS1WM clock handling\n\nThis driver requests a clock that usually is supplied by the MFD in which\nthe DS1WM is contained. Currently, it is impossible for a MFD to register\ntheir clocks with the generic clock API due to different implementations\nacross architectures.\nFor now, this patch removes the clock handling from DS1WM altogether,\ntrusting that the MFD enable/disable functions will switch the clock if\nneeded. The clock rate is obtained from a new parameter in driver_data.\n\nSigned-off-by: Philipp Zabel \u003cphilipp.zabel@gmail.com\u003e\nSigned-off-by: Samuel Ortiz \u003csameo@openedhand.com\u003e\n" }, { "commit": "b72019dbd126e60bb5f9f350f76127b1527facba", "tree": "140b56be03f02542190e4d668021d714bfa50457", "parents": [ "0ef2067d0fdb0572bd0df288d1d32e27c929d824" ], "author": { "name": "Philipp Zabel", "email": "philipp.zabel@gmail.com", "time": "Tue Feb 17 10:06:52 2009 +0100" }, "committer": { "name": "Samuel Ortiz", "email": "samuel@sortiz.org", "time": "Sun Apr 05 00:32:22 2009 +0200" }, "message": "mfd: remove unused PASIC3 bus_shift field\n\nRemoves the now-unused bus_shift field from pasic3_platform_data.\n\nSigned-off-by: Philipp Zabel \u003cphilipp.zabel@gmail.com\u003e\nSigned-off-by: Samuel Ortiz \u003csameo@openedhand.com\u003e\n" }, { "commit": "a23a175795cdb202619ac176129b2f0c2a5c9456", "tree": "d3b03c863d501a107eaefffeb733179b19315327", "parents": [ "3206450355100eae8e033645318b95bb60f1faff" ], "author": { "name": "Philipp Zabel", "email": "philipp.zabel@gmail.com", "time": "Tue Feb 17 10:06:41 2009 +0100" }, "committer": { "name": "Samuel Ortiz", "email": "samuel@sortiz.org", "time": "Sun Apr 05 00:32:20 2009 +0200" }, "message": "mfd: convert DS1WM to use MFD core\n\nThis patch converts the DS1WM driver into an MFD cell. It also\ncalculates the bus_shift parameter from the memory resource size.\n\nSigned-off-by: Philipp Zabel \u003cphilipp.zabel@gmail.com\u003e\nSigned-off-by: Samuel Ortiz \u003csameo@openedhand.com\u003e\n" }, { "commit": "3206450355100eae8e033645318b95bb60f1faff", "tree": "c24ba036ef75df55dbbe8ad41f88a29efa955c09", "parents": [ "9dfd338198bec67ebc82ed363078f9d8aa74ec3e" ], "author": { "name": "Mark Brown", "email": "broonie@opensource.wolfsonmicro.com", "time": "Fri Feb 06 15:27:13 2009 +0100" }, "committer": { "name": "Samuel Ortiz", "email": "samuel@sortiz.org", "time": "Sun Apr 05 00:32:20 2009 +0200" }, "message": "mfd: Support active high IRQs on WM835x\n\nSigned-off-by: Mark Brown \u003cbroonie@opensource.wolfsonmicro.com\u003e\nSigned-off-by: Samuel Ortiz \u003csameo@openedhand.com\u003e\n" }, { "commit": "601cc11d054ae4b5e9b5babec3d8e4667a2cb9b5", "tree": "725ec3422b4fe50267915c1d5b80c49712ffff75", "parents": [ "6bb597507f9839b13498781e481f5458aea33620" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 08:03:22 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Apr 04 14:20:34 2009 -0700" }, "message": "Make non-compat preadv/pwritev use native register size\n\nInstead of always splitting the file offset into 32-bit \u0027high\u0027 and \u0027low\u0027\nparts, just split them into the largest natural word-size - which in C\nterms is \u0027unsigned long\u0027.\n\nThis allows 64-bit architectures to avoid the unnecessary 32-bit\nshifting and masking for native format (while the compat interfaces will\nobviously always have to do it).\n\nThis also changes the order of \u0027high\u0027 and \u0027low\u0027 to be \"low first\". Why?\nBecause when we have it like this, the 64-bit system calls now don\u0027t use\nthe \"pos_high\" argument at all, and it makes more sense for the native\nsystem call to simply match the user-mode prototype.\n\nThis results in a much more natural calling convention, and allows the\ncompiler to generate much more straightforward code. On x86-64, we now\ngenerate\n\n testq %rcx, %rcx # pos_l\n js .L122 #,\n movq %rcx, -48(%rbp) # pos_l, pos\n\nfrom the C source\n\n loff_t pos \u003d pos_from_hilo(pos_h, pos_l);\n\t...\n if (pos \u003c 0)\n return -EINVAL;\n\nand the \u0027pos_h\u0027 register isn\u0027t even touched. It used to generate code\nlike\n\n mov %r8d, %r8d # pos_low, pos_low\n salq $32, %rcx #, tmp71\n movq %r8, %rax # pos_low, pos.386\n orq %rcx, %rax # tmp71, pos.386\n js .L122 #,\n movq %rax, -48(%rbp) # pos.386, pos\n\nwhich isn\u0027t _that_ horrible, but it does show how the natural word size\nis just a more sensible interface (same arguments will hold in the user\nlevel glibc wrapper function, of course, so the kernel side is just half\nof the equation!)\n\nNote: in all cases the user code wrapper can again be the same. You can\njust do\n\n\t#define HALF_BITS (sizeof(unsigned long)*4)\n\t__syscall(PWRITEV, fd, iov, count, offset, (offset \u003e\u003e HALF_BITS) \u003e\u003e HALF_BITS);\n\nor something like that. That way the user mode wrapper will also be\nnicely passing in a zero (it won\u0027t actually have to do the shifts, the\ncompiler will understand what is going on) for the last argument.\n\nAnd that is a good idea, even if nobody will necessarily ever care: if\nwe ever do move to a 128-bit lloff_t, this particular system call might\nbe left alone. Of course, that will be the least of our worries if we\nreally ever need to care, so this may not be worth really caring about.\n\n[ Fixed for lost \u0027loff_t\u0027 cast noticed by Andrew Morton ]\n\nAcked-by: Gerd Hoffmann \u003ckraxel@redhat.com\u003e\nCc: H. Peter Anvin \u003chpa@zytor.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nCc: linux-api@vger.kernel.org\nCc: linux-arch@vger.kernel.org\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "070d8eb1f6b789206486ea6a4a1bb7745d86d314", "tree": "08adf0215ee2f76a26adca7ff90e449d02acee22", "parents": [ "8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84" ], "author": { "name": "Jan Engelhardt", "email": "jengelh@medozas.de", "time": "Mon Jan 12 00:07:55 2009 +0100" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Fri Apr 03 23:14:40 2009 -0400" }, "message": "ACPI: constify VFTs (1/2)\n\nSigned-off-by: Jan Engelhardt \u003cjengelh@medozas.de\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "b1dbb67911fecb290db3f566281bcd9ccc9dc6df", "tree": "f55add06f624f7fed8a68372d8c96b583ca578fe", "parents": [ "492f59f526d95e73028f57bff475b4bbe3c8cb72", "70f454408e68fdba2c2529ab7d6ec3c3525e59f2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 17:33:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 17:33:30 2009 -0700" }, "message": "Merge branch \u0027ipi-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027ipi-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n s390: remove arch specific smp_send_stop()\n panic: clean up kernel/panic.c\n panic, smp: provide smp_send_stop() wrapper on UP too\n panic: decrease oops_in_progress only after having done the panic\n generic-ipi: eliminate WARN_ON()s during oops/panic\n generic-ipi: cleanups\n generic-ipi: remove CSD_FLAG_WAIT\n generic-ipi: remove kmalloc()\n generic IPI: simplify barriers and locking\n" }, { "commit": "492f59f526d95e73028f57bff475b4bbe3c8cb72", "tree": "8419a65de08183e350a468433fb3f4205e49ae80", "parents": [ "f945b7abcb6cfd3106c9855aa2aa6e4396a19d76", "7bee946358c3cb957d4aa648fc5ab3cad0b232d0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 17:29:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 17:29:53 2009 -0700" }, "message": "Merge branch \u0027locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027locking-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n locking: rename trace_softirq_[enter|exit] \u003d\u003e lockdep_softirq_[enter|exit]\n lockdep: remove duplicate CONFIG_DEBUG_LOCKDEP definitions\n lockdep: require framepointers for x86\n lockdep: remove extra \"irq\" string\n lockdep: fix incorrect state name\n" }, { "commit": "786c221a37d3931189d9c9421f63dec92f4d698b", "tree": "e14cc516297b373cebce3e3321a149a657e82167", "parents": [ "7237d3de78ff89ec2e18eae5fe962d063024fef5" ], "author": { "name": "Suresh Siddha", "email": "suresh.b.siddha@intel.com", "time": "Mon Mar 30 14:05:50 2009 -0800" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Fri Apr 03 20:10:26 2009 -0400" }, "message": "ACPI: update x2apic comments\n\nSigned-off-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "7237d3de78ff89ec2e18eae5fe962d063024fef5", "tree": "07d0196e9e3122546cc0366c686d363423bfe894", "parents": [ "8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84" ], "author": { "name": "Suresh Siddha", "email": "suresh.b.siddha@intel.com", "time": "Mon Mar 30 13:55:30 2009 -0800" }, "committer": { "name": "Len Brown", "email": "len.brown@intel.com", "time": "Fri Apr 03 20:08:12 2009 -0400" }, "message": "x86, ACPI: add support for x2apic ACPI extensions\n\nAll logical processors with APIC ID values of 255 and greater will have their\nAPIC reported through Processor X2APIC structure (type-9 entry type) and all\nlogical processors with APIC ID less than 255 will have their APIC reported\nthrough legacy Processor Local APIC (type-0 entry type) only. This is the\nsame case even for NMI structure reporting.\n \nThe Processor X2APIC Affinity structure provides the association between the\nX2APIC ID of a logical processor and the proximity domain to which the logical\nprocessor belongs.\n \nFor OSPM, Procssor IDs outside the 0-254 range are to be declared as Device()\nobjects in the ACPI namespace.\n\nSigned-off-by: Suresh Siddha \u003csuresh.b.siddha@intel.com\u003e\nSigned-off-by: Len Brown \u003clen.brown@intel.com\u003e\n" }, { "commit": "5fba0925fd6b67d94181055b7222e3d934b4efee", "tree": "167c0e259ec94f426674d3f79563c3e556cda845", "parents": [ "811158b147a503fbdf9773224004ffd32002d1fe", "621de593081524da2f0f7b060f5951b4155eb4a2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 15:25:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 15:25:44 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:\n HID: remove compat stuff\n HID: constify arrays of struct apple_key_translation\n HID: add support for Kye/Genius Ergo 525V\n HID: Support Apple mini aluminum keyboard\n HID: support for Kensington slimblade device\n HID: DragonRise game controller force feedback driver\n HID: add support for another version of 0e8f:0003 device in hid-pl\n HID: fix race between usb_register_dev() and hiddev_open()\n HID: bring back possibility to specify vid/pid ignore on module load\n HID: make HID_DEBUG defaults consistent\n HID: autosuspend -- fix lockup of hid on reset\n HID: hid_reset_resume() needs to be defined only when CONFIG_PM is set\n HID: fix USB HID devices after STD with autosuspend\n HID: do not try to compile PM code with CONFIG_PM unset\n HID: autosuspend support for USB HID\n" }, { "commit": "811158b147a503fbdf9773224004ffd32002d1fe", "tree": "0a11dcfefe721bfc38ea9f1f4a238822dbae0dda", "parents": [ "4e76c5ccd5ac9bd003467d3bb0f49b18572dd4cd", "b26e0ed4936b743b693a4cc1413561fa3e4eaf65" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 15:24:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 15:24:35 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)\n trivial: Update my email address\n trivial: NULL noise: drivers/mtd/tests/mtd_*test.c\n trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h\n trivial: Fix misspelling of \"Celsius\".\n trivial: remove unused variable \u0027path\u0027 in alloc_file()\n trivial: fix a pdlfush -\u003e pdflush typo in comment\n trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL\n trivial: wusb: Storage class should be before const qualifier\n trivial: drivers/char/bsr.c: Storage class should be before const qualifier\n trivial: h8300: Storage class should be before const qualifier\n trivial: fix where cgroup documentation is not correctly referred to\n trivial: Give the right path in Documentation example\n trivial: MTD: remove EOL from MODULE_DESCRIPTION\n trivial: Fix typo in bio_split()\u0027s documentation\n trivial: PWM: fix of #endif comment\n trivial: fix typos/grammar errors in Kconfig texts\n trivial: Fix misspelling of firmware\n trivial: cgroups: documentation typo and spelling corrections\n trivial: Update contact info for Jochen Hein\n trivial: fix typo \"resgister\" -\u003e \"register\"\n ...\n" }, { "commit": "ce0d9d7255a55628fd3732bf583c83e90150b699", "tree": "d8aa3910a4ba9d87f98639dafe2fdf69b591fa15", "parents": [ "dab8c35990692026fca989c3449fd67a59275c6a" ], "author": { "name": "Evgeniy Polyakov", "email": "zbr@ioremap.net", "time": "Wed Jan 14 02:05:27 2009 +0300" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Apr 03 14:53:32 2009 -0700" }, "message": "Staging: dst: core files.\n\nThis patch contains DST core files, which introduce\nblock layer, connector and sysfs registration glue and main headers.\n\nConnector is used for the configuration of the node (its type, address,\ndevice name and so on). Sysfs provides bits of information about running\ndevices in the following format:\n\n+/*\n+ * DST sysfs tree for device called \u0027storage\u0027:\n+ *\n+ * /sys/bus/dst/devices/storage/\n+ * /sys/bus/dst/devices/storage/type : 192.168.4.80:1025\n+ * /sys/bus/dst/devices/storage/size : 800\n+ * /sys/bus/dst/devices/storage/name : storage\n+ */\n\nDST header contains structure definitions and protocol command description.\n\nSigned-off-by: Evgeniy Polyakov \u003czbr@ioremap.net\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "133e2a3164771454aa326859c2b293687189b553", "tree": "4e21f63be087738d7ffe7526d41e15140fc63ff0", "parents": [ "20bec8ab1458c24bed0d5492ee15d87807fc415a", "8c6db1bbf80123839ec87bdd6cb364aea384623d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 12:13:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 12:13:45 2009 -0700" }, "message": "Merge branch \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx\n\n* \u0027next\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:\n dma: Add SoF and EoF debugging to ipu_idmac.c, minor cleanup\n dw_dmac: add cyclic API to DW DMA driver\n dmaengine: Add privatecnt to revert DMA_PRIVATE property\n dmatest: add dma interrupts and callbacks\n dmatest: add xor test\n dmaengine: allow dma support for async_tx to be toggled\n async_tx: provide __async_inline for HAS_DMA\u003dn archs\n dmaengine: kill some unused headers\n dmaengine: initialize tx_list in dma_async_tx_descriptor_init\n dma: i.MX31 IPU DMA robustness improvements\n dma: improve section assignment in i.MX31 IPU DMA driver\n dma: ipu_idmac driver cosmetic clean-up\n dmaengine: fail device registration if channel registration fails\n" }, { "commit": "20bec8ab1458c24bed0d5492ee15d87807fc415a", "tree": "e5f910947dbe314b96a591e41e2cfb2d3322caad", "parents": [ "18b34b9546dc192d978dda940673f40928d2e36e", "e7c8f5079ed9ec9e6eb1abe3defc5fb4ebfdf1cb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 11:10:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 11:10:33 2009 -0700" }, "message": "Merge branch \u0027ext3-latency-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4\n\n* \u0027ext3-latency-fixes\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:\n ext3: Add replace-on-rename hueristics for data\u003dwriteback mode\n ext3: Add replace-on-truncate hueristics for data\u003dwriteback mode\n ext3: Use WRITE_SYNC for commits which are caused by fsync()\n block_write_full_page: Use synchronous writes for WBC_SYNC_ALL writebacks\n" }, { "commit": "18b34b9546dc192d978dda940673f40928d2e36e", "tree": "ca396840ed95fc46cd360c68bf2cefe5ab4cbda8", "parents": [ "ca1ee219c070eab755712d50638bbcd1f8630fc1", "d6bb69cfa88b8ac9f952de4fada5b216d5ba8830" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:39:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:39:20 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: (32 commits)\n regulator: twl4030 VAUX3 supports 3.0V\n regulator: Support disabling of unused regulators by machines\n regulator: Don\u0027t increment use_count for boot_on regulators\n twl4030-regulator: expose VPLL2\n regulator: refcount fixes\n regulator: Don\u0027t warn if we failed to get a regulator\n regulator: Allow boot_on regulators to be disabled by clients\n regulator: Implement list_voltage for WM835x LDOs and DCDCs\n twl4030-regulator: list more VAUX4 voltages\n regulator: Don\u0027t warn on omitted voltage constraints\n regulator: Implement list_voltage() for WM8400 DCDCs and LDOs\n MMC: regulator utilities\n regulator: twl4030 voltage enumeration (v2)\n regulator: twl4030 regulators\n regulator: get_status() grows kerneldoc\n regulator: enumerate voltages (v2)\n regulator: Fix get_mode() for WM835x DCDCs\n regulator: Allow regulators to set the initial operating mode\n regulator: Suggest use of datasheet supply or pin names for consumers\n regulator: email - update email address and regulator webpage.\n ...\n" }, { "commit": "ca1ee219c070eab755712d50638bbcd1f8630fc1", "tree": "c0c252a9095830aadc5dc9ffdd16d9167dd605c9", "parents": [ "3cc50ac0dbda5100684e570247782330155d35e0", "afeeb7cebbd223ffee303fd8de4ba97458b13581" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:36:57 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:36:57 2009 -0700" }, "message": "Merge git://git.infradead.org/iommu-2.6\n\n* git://git.infradead.org/iommu-2.6:\n intel-iommu: Fix address wrap on 32-bit kernel.\n intel-iommu: Enable DMAR on 32-bit kernel.\n intel-iommu: fix PCI device detach from virtual machine\n intel-iommu: VT-d page table to support snooping control bit\n iommu: Add domain_has_cap iommu_ops\n intel-iommu: Snooping control support\n\nFixed trivial conflicts in arch/x86/Kconfig and drivers/pci/intel-iommu.c\n" }, { "commit": "3cc50ac0dbda5100684e570247782330155d35e0", "tree": "f4b8f22d1725ebe65d2fe658d292dabacd7ed564", "parents": [ "d9b9be024a6628a01d8730d1fd0b5f25658a2794", "b797cac7487dee6bfddeb161631c1bbc54fa3cdb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:07:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:07:43 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-fscache\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-fscache: (41 commits)\n NFS: Add mount options to enable local caching on NFS\n NFS: Display local caching state\n NFS: Store pages from an NFS inode into a local cache\n NFS: Read pages from FS-Cache into an NFS inode\n NFS: nfs_readpage_async() needs to be accessible as a fallback for local caching\n NFS: Add read context retention for FS-Cache to call back with\n NFS: FS-Cache page management\n NFS: Add some new I/O counters for FS-Cache doing things for NFS\n NFS: Invalidate FsCache page flags when cache removed\n NFS: Use local disk inode cache\n NFS: Define and create inode-level cache objects\n NFS: Define and create superblock-level objects\n NFS: Define and create server-level objects\n NFS: Register NFS for caching and retrieve the top-level index\n NFS: Permit local filesystem caching to be enabled for NFS\n NFS: Add FS-Cache option bit and debug bit\n NFS: Add comment banners to some NFS functions\n FS-Cache: Make kAFS use FS-Cache\n CacheFiles: A cache that backs onto a mounted filesystem\n CacheFiles: Export things for CacheFiles\n ...\n" }, { "commit": "d9b9be024a6628a01d8730d1fd0b5f25658a2794", "tree": "9f8e606f975f6dff4213747e85fedaccd148eb60", "parents": [ "9b59f0316bc556a1b63518f0b1224cf9be48467b", "99360b4c18f7675b50d283301d46d755affe75fd" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:02:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 10:02:45 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (36 commits)\n dm: set queue ordered mode\n dm: move wait queue declaration\n dm: merge pushback and deferred bio lists\n dm: allow uninterruptible wait for pending io\n dm: merge __flush_deferred_io into caller\n dm: move bio_io_error into __split_and_process_bio\n dm: rename __split_bio\n dm: remove unnecessary struct dm_wq_req\n dm: remove unnecessary work queue context field\n dm: remove unnecessary work queue type field\n dm: bio list add bio_list_add_head\n dm snapshot: persistent fix dtr cleanup\n dm snapshot: move status to exception store\n dm snapshot: move ctr parsing to exception store\n dm snapshot: use DMEMIT macro for status\n dm snapshot: remove dm_snap header\n dm snapshot: remove dm_snap header use\n dm exception store: move cow pointer\n dm exception store: move chunk_fields\n dm exception store: move dm_target pointer\n ...\n" }, { "commit": "3688e07f83d81941c4a8b20e29602c6d0c883539", "tree": "d7169ef37071cc14225e7700a4f6c08981f3f5e4", "parents": [ "c54c4dec61eec88de8260a00260fe89aa538f267" ], "author": { "name": "Kumar Gala", "email": "galak@kernel.crashing.org", "time": "Wed Apr 01 23:38:49 2009 -0500" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:48:29 2009 -0700" }, "message": "Fix highmem PPC build failure\n\nCommit f4112de6b679d84bd9b9681c7504be7bdfb7c7d5 (\"mm: introduce\ndebug_kmap_atomic\") broke PPC builds with CONFIG_HIGHMEM\u003dy:\n\n CC init/main.o\n In file included from include/linux/highmem.h:25,\n from include/linux/pagemap.h:11,\n from include/linux/mempolicy.h:63,\n from init/main.c:53:\n arch/powerpc/include/asm/highmem.h: In function \u0027kmap_atomic_prot\u0027:\n arch/powerpc/include/asm/highmem.h:98: error: implicit declaration of function \u0027debug_kmap_atomic\u0027\n In file included from include/linux/pagemap.h:11,\n from include/linux/mempolicy.h:63,\n from init/main.c:53:\n include/linux/highmem.h: At top level:\n include/linux/highmem.h:196: warning: conflicting types for \u0027debug_kmap_atomic\u0027\n include/linux/highmem.h:196: error: static declaration of \u0027debug_kmap_atomic\u0027 follows non-static declaration\n include/asm/highmem.h:98: error: previous implicit declaration of \u0027debug_kmap_atomic\u0027 was here\n make[1]: *** [init/main.o] Error 1\n make: *** [init] Error 2\n\nSigned-off-by: Kumar Gala \u003cgalak@kernel.crashing.org\u003e\nAcked-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c54c4dec61eec88de8260a00260fe89aa538f267", "tree": "b515c760f6eba432f05625b417612550c755efe5", "parents": [ "5de1ccbe51e89c51a2fe5ab333b7c9c2e7294aff", "0d44dc59b2b434b29aafeae581d06f81efac7c83" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:45:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:45:53 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:\n crypto: ixp4xx - Fix handling of chained sg buffers\n crypto: shash - Fix unaligned calculation with short length\n hwrng: timeriomem - Use phys address rather than virt\n" }, { "commit": "223cdea4c4b5af5181b2da00ac85711d1e0c737c", "tree": "dfe7226c70ddabbf2e2e63924ba636345278e79c", "parents": [ "31e6e2dac575c9d21a6ec56ca52ae89086baa705", "c8f517c444e4f9f55b5b5ca202b8404691a35805" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:08:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:08:19 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://neil.brown.name/md\n\n* \u0027for-linus\u0027 of git://neil.brown.name/md: (53 commits)\n md/raid5 revise rules for when to update metadata during reshape\n md/raid5: minor code cleanups in make_request.\n md: remove CONFIG_MD_RAID_RESHAPE config option.\n md/raid5: be more careful about write ordering when reshaping.\n md: don\u0027t display meaningless values in sysfs files resync_start and sync_speed\n md/raid5: allow layout and chunksize to be changed on active array.\n md/raid5: reshape using largest of old and new chunk size\n md/raid5: prepare for allowing reshape to change layout\n md/raid5: prepare for allowing reshape to change chunksize.\n md/raid5: clearly differentiate \u0027before\u0027 and \u0027after\u0027 stripes during reshape.\n Documentation/md.txt update\n md: allow number of drives in raid5 to be reduced\n md/raid5: change reshape-progress measurement to cope with reshaping backwards.\n md: add explicit method to signal the end of a reshape.\n md/raid5: enhance raid5_size to work correctly with negative delta_disks\n md/raid5: drop qd_idx from r6_state\n md/raid6: move raid6 data processing to raid6_pq.ko\n md: raid5 run(): Fix max_degraded for raid level 4.\n md: \u0027array_size\u0027 sysfs attribute\n md: centralize -\u003earray_sectors modifications\n ...\n" }, { "commit": "ea02259fdf47ca81ff3ca0c22906d989094fb8ff", "tree": "5d3672aa246e016f695bc62a861902a50de7b461", "parents": [ "8fe74cf053de7ad2124a894996f84fa890a81093", "eae6c2b6414fc6673ac5415442fe463c01005366" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:02:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Apr 03 09:02:32 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/linux-hdreg-h-cleanup\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/bart/linux-hdreg-h-cleanup:\n remove \u003clinux/ata.h\u003e include from \u003clinux/hdreg.h\u003e\n include/linux/hdreg.h: remove unused defines\n isd200: use ATA_* defines instead of *_STAT and *_ERR ones\n include/linux/hdreg.h: cover WIN_* and friends with #ifndef/#endif __KERNEL__\n aoe: WIN_* -\u003e ATA_CMD_*\n isd200: WIN_* -\u003e ATA_CMD_*\n include/linux/hdreg.h: cover struct hd_driveid with #ifndef/#endif __KERNEL__\n xsysace: make it \u0027struct hd_driveid\u0027-free\n ubd_kern: make it \u0027struct hd_driveid\u0027-free\n isd200: make it \u0027struct hd_driveid\u0027-free\n" }, { "commit": "f42b293d6d5259043a8944b556eeab427c695d57", "tree": "9427fb985f5426062c11755c47bbf4ba7606ee65", "parents": [ "1fcdf534885b65e6d39780a5a89e9dfc5431cf68" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:44 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:44 2009 +0100" }, "message": "NFS: nfs_readpage_async() needs to be accessible as a fallback for local caching\n\nnfs_readpage_async() needs to be non-static so that it can be used as a\nfallback for the local on-disk caching should an EIO crop up when reading the\ncache.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "6a51091d0775cdc4a923f2172c61925ad416aa32", "tree": "288fafe724eee5a0c67ff4c9bd437d35d3bbb9ab", "parents": [ "d599064a1bca7bcbaabe54b94fa73ea86952cae3" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:43 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:43 2009 +0100" }, "message": "NFS: Add some new I/O counters for FS-Cache doing things for NFS\n\nAdd some new NFS I/O counters for FS-Cache doing things for NFS. A new line is\nemitted into /proc/pid/mountstats if caching is enabled that looks like:\n\n\tfsc: \u003crok\u003e \u003crfl\u003e \u003cwok\u003e \u003cwfl\u003e \u003cunc\u003e\n\nWhere \u003crok\u003e is the number of pages read successfully from the cache, \u003crfl\u003e is\nthe number of failed page reads against the cache, \u003cwok\u003e is the number of\nsuccessful page writes to the cache, \u003cwfl\u003e is the number of failed page writes\nto the cache, and \u003cunc\u003e is the number of NFS pages that have been disconnected\nfrom the cache.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "ef79c097bbe9724e13937271b3457df560e00370", "tree": "a8671781cc0c9deb85fa76a8b4211c5e693b4343", "parents": [ "10329a5d48f5abc14a37d30b706e330f8598297a" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:43 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:43 2009 +0100" }, "message": "NFS: Use local disk inode cache\n\nBind data storage objects in the local cache to NFS inodes.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "08734048b380103f0412f58b84c2f76a2c8b599f", "tree": "34a65d40e33b12d36f5c82adb686bcdae6eab0fe", "parents": [ "147272813e043fb44bd112527951da70c1e663de" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:42 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:42 2009 +0100" }, "message": "NFS: Define and create superblock-level objects\n\nDefine and create superblock-level cache index objects (as managed by\nnfs_server structs).\n\nEach superblock object is created in a server level index object and is itself\nan index into which inode-level objects are inserted.\n\nIdeally there would be one superblock-level object per server, and the former\nwould be folded into the latter; however, since the \"nosharecache\" option\nexists this isn\u0027t possible.\n\nThe superblock object key is a sequence consisting of:\n\n (1) Certain superblock s_flags.\n\n (2) Various connection parameters that serve to distinguish superblocks for\n sget().\n\n (3) The volume FSID.\n\n (4) The security flavour.\n\n (5) The uniquifier length.\n\n (6) The uniquifier text. This is normally an empty string, unless the fsc\u003dxyz\n mount option was used to explicitly specify a uniquifier.\n\nThe key blob is of variable length, depending on the length of (6).\n\nThe superblock object is given no coherency data to carry in the auxiliary data\npermitted by the cache. It is assumed that the superblock is always coherent.\n\nThis patch also adds uniquification handling such that two otherwise identical\nsuperblocks, at least one of which is marked \"nosharecache\", won\u0027t end up\ntrying to share the on-disk cache. It will be possible to manually provide a\nuniquifier through a mount option with a later patch to avoid the error\notherwise produced.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "147272813e043fb44bd112527951da70c1e663de", "tree": "4b67df2bb809c7b661e7c6f4b1692ab8af41a996", "parents": [ "8ec442ae4c6577ed181682e534d4eef524e30b3c" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:42 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:42 2009 +0100" }, "message": "NFS: Define and create server-level objects\n\nDefine and create server-level cache index objects (as managed by nfs_client\nstructs).\n\nEach server object is created in the NFS top-level index object and is itself\nan index into which superblock-level objects are inserted.\n\nIdeally there would be one superblock-level object per server, and the former\nwould be folded into the latter; however, since the \"nosharecache\" option\nexists this isn\u0027t possible.\n\nThe server object key is a sequence consisting of:\n\n (1) NFS version\n\n (2) Server address family (eg: AF_INET or AF_INET6)\n\n (3) Server port.\n\n (4) Server IP address.\n\nThe key blob is of variable length, depending on the length of (4).\n\nThe server object is given no coherency data to carry in the auxiliary data\npermitted by the cache.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "c6a6f19e22da0a3d74214ee010224c9a30a794c1", "tree": "e10e6bf056e9a7f276e98bd55d0d04b491844807", "parents": [ "6b9b3514aa188183e74049853be43380ad49314f" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:42 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:42 2009 +0100" }, "message": "NFS: Add FS-Cache option bit and debug bit\n\nAdd FS-Cache option bit to nfs_server struct. This is set to indicate local\non-disk caching is enabled for a particular superblock.\n\nAlso add debug bit for local caching operations.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "385e1ca5f21c4680ad6a46a3aa2ea8af99e99c92", "tree": "7d887b59d943c5dd62c9604b7ea37fd2d650df71", "parents": [ "b510882281d56873e1194021643b7c325336f84f" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:39 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:39 2009 +0100" }, "message": "CacheFiles: Permit the page lock state to be monitored\n\nAdd a function to install a monitor on the page lock waitqueue for a particular\npage, thus allowing the page being unlocked to be detected.\n\nThis is used by CacheFiles to detect read completion on a page in the backing\nfilesystem so that it can then copy the data to the waiting netfs page.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "b510882281d56873e1194021643b7c325336f84f", "tree": "86cd206b0d2b55dc355833ca238d46488161b64c", "parents": [ "952efe7b7840e1c726ae88222245e4efe6bd88f3" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:39 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:39 2009 +0100" }, "message": "FS-Cache: Implement data I/O part of netfs API\n\nImplement the data I/O part of the FS-Cache netfs API. The documentation and\nAPI header file were added in a previous patch.\n\nThis patch implements the following functions for the netfs to call:\n\n (*) fscache_attr_changed().\n\n Indicate that the object has changed its attributes. The only attribute\n currently recorded is the file size. Only pages within the set file size\n will be stored in the cache.\n\n This operation is submitted for asynchronous processing, and will return\n immediately. It will return -ENOMEM if an out of memory error is\n encountered, -ENOBUFS if the object is not actually cached, or 0 if the\n operation is successfully queued.\n\n (*) fscache_read_or_alloc_page().\n (*) fscache_read_or_alloc_pages().\n\n Request data be fetched from the disk, and allocate internal metadata to\n track the netfs pages and reserve disk space for unknown pages.\n\n These operations perform semi-asynchronous data reads. Upon returning\n they will indicate which pages they think can be retrieved from disk, and\n will have set in progress attempts to retrieve those pages.\n\n These will return, in order of preference, -ENOMEM on memory allocation\n error, -ERESTARTSYS if a signal interrupted proceedings, -ENODATA if one\n or more requested pages are not yet cached, -ENOBUFS if the object is not\n actually cached or if there isn\u0027t space for future pages to be cached on\n this object, or 0 if successful.\n\n In the case of the multipage function, the pages for which reads are set\n in progress will be removed from the list and the page count decreased\n appropriately.\n\n If any read operations should fail, the completion function will be given\n an error, and will also be passed contextual information to allow the\n netfs to fall back to querying the server for the absent pages.\n\n For each successful read, the page completion function will also be\n called.\n\n Any pages subsequently tracked by the cache will have PG_fscache set upon\n them on return. fscache_uncache_page() must be called for such pages.\n\n If supplied by the netfs, the mark_pages_cached() cookie op will be\n invoked for any pages now tracked.\n\n (*) fscache_alloc_page().\n\n Allocate internal metadata to track a netfs page and reserve disk space.\n\n This will return -ENOMEM on memory allocation error, -ERESTARTSYS on\n signal, -ENOBUFS if the object isn\u0027t cached, or there isn\u0027t enough space\n in the cache, or 0 if successful.\n\n Any pages subsequently tracked by the cache will have PG_fscache set upon\n them on return. fscache_uncache_page() must be called for such pages.\n\n If supplied by the netfs, the mark_pages_cached() cookie op will be\n invoked for any pages now tracked.\n\n (*) fscache_write_page().\n\n Request data be stored to disk. This may only be called on pages that\n have been read or alloc\u0027d by the above three functions and have not yet\n been uncached.\n\n This will return -ENOMEM on memory allocation error, -ERESTARTSYS on\n signal, -ENOBUFS if the object isn\u0027t cached, or there isn\u0027t immediately\n enough space in the cache, or 0 if successful.\n\n On a successful return, this operation will have queued the page for\n asynchronous writing to the cache. The page will be returned with\n PG_fscache_write set until the write completes one way or another. The\n caller will not be notified if the write fails due to an I/O error. If\n that happens, the object will become available and all pending writes will\n be aborted.\n\n Note that the cache may batch up page writes, and so it may take a while\n to get around to writing them out.\n\n The caller must assume that until PG_fscache_write is cleared the page is\n use by the cache. Any changes made to the page may be reflected on disk.\n The page may even be under DMA.\n\n (*) fscache_uncache_page().\n\n Indicate that the cache should stop tracking a page previously read or\n alloc\u0027d from the cache. If the page was alloc\u0027d only, but unwritten, it\n will not appear on disk.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "ccc4fc3d11e91477036d1f82bfa2d442f6ce77f0", "tree": "c3ead4b385f9efce6e2688832dfb76391e18345d", "parents": [ "36c9559022850f919269564a74bf17fdabf4bb30" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:38 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:38 2009 +0100" }, "message": "FS-Cache: Implement the cookie management part of the netfs API\n\nImplement the cookie management part of the FS-Cache netfs client API. The\ndocumentation and API header file were added in a previous patch.\n\nThis patch implements the following three functions:\n\n (1) fscache_acquire_cookie().\n\n Acquire a cookie to represent an object to the netfs. If the object in\n question is a non-index object, then that object and its parent indices\n will be created on disk at this point if they don\u0027t already exist. Index\n creation is deferred because an index may reside in multiple caches.\n\n (2) fscache_relinquish_cookie().\n\n Retire or release a cookie previously acquired. At this point, the\n object on disk may be destroyed.\n\n (3) fscache_update_cookie().\n\n Update the in-cache representation of a cookie. This is used to update\n the auxiliary data for coherency management purposes.\n\nWith this patch it is possible to have a netfs instruct a cache backend to\nlook up, validate and create metadata on disk and to destroy it again.\nThe ability to actually store and retrieve data in the objects so created is\nadded in later patches.\n\nNote that these functions will never return an error. _All_ errors are\nhandled internally to FS-Cache.\n\nThe worst that can happen is that fscache_acquire_cookie() may return a NULL\npointer - which is considered a negative cookie pointer and can be passed back\nto any function that takes a cookie without harm. A negative cookie pointer\nmerely suppresses caching at that level.\n\nThe stub in linux/fscache.h will detect inline the negative cookie pointer and\nabort the operation as fast as possible. This means that the compiler doesn\u0027t\nhave to set up for a call in that case.\n\nSee the documentation in Documentation/filesystems/caching/netfs-api.txt for\nmore information.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "726dd7ff10c217dd74329c94643dc8ebea27334b", "tree": "9bd5b011f945fca4f1b057f7e7750414b1fd9fbd", "parents": [ "955d00917f0c094e0f2fb88df967e980ab66b8ca" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:38 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:38 2009 +0100" }, "message": "FS-Cache: Add netfs registration\n\nAdd functions to register and unregister a network filesystem or other client\nof the FS-Cache service. This allocates and releases the cookie representing\nthe top-level index for a netfs, and makes it available to the netfs.\n\nIf the FS-Cache facility is disabled, then the calls are optimised away at\ncompile time.\n\nNote that whilst this patch may appear to work with FS-Cache enabled and a\nnetfs attempting to use it, it will leak the cookie it allocates for the netfs\nas fscache_relinquish_cookie() is implemented in a later patch. This will\ncause the slab code to emit a warning when the module is removed.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "0e04d4cefcf4d8fbbdb2c50e93ad541582933fd2", "tree": "97c4cda6a2c246660e6a5c718a9272375cdb259c", "parents": [ "a6891645cf2ddd4778096848a864580e7258faba" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:37 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:37 2009 +0100" }, "message": "FS-Cache: Add cache tag handling\n\nImplement two features of FS-Cache:\n\n (1) The ability to request and release cache tags - names by which a cache may\n be known to a netfs, and thus selected for use.\n\n (2) An internal function by which a cache is selected by consulting the netfs,\n if the netfs wishes to be consulted.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "7394daa8c61dfda4baa687f133748fa0b599b017", "tree": "32d2c55ed60596918ec62ce6ecca186337bf4660", "parents": [ "06b3db1b9bccdc8c2c743122a89745279e5ecc46" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:37 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:37 2009 +0100" }, "message": "FS-Cache: Add use of /proc and presentation of statistics\n\nMake FS-Cache create its /proc interface and present various statistical\ninformation through it. Also provide the functions for updating this\ninformation.\n\nThese features are enabled by:\n\n\tCONFIG_FSCACHE_PROC\n\tCONFIG_FSCACHE_STATS\n\tCONFIG_FSCACHE_HISTOGRAM\n\nThe /proc directory for FS-Cache is also exported so that caching modules can\nadd their own statistics there too.\n\nThe FS-Cache module is loadable at this point, and the statistics files can be\nexamined by userspace:\n\n\tcat /proc/fs/fscache/stats\n\tcat /proc/fs/fscache/histogram\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "0dfc41d1efcc4180abfd32f68f0ade540e636ff6", "tree": "f066d08e2c33d2b475e55c5b18e4e4bff537ee75", "parents": [ "2d6fff637037395cc946ef910a880b5fa67b5370" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:36 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:36 2009 +0100" }, "message": "FS-Cache: Add the FS-Cache cache backend API and documentation\n\nAdd the API for a generic facility (FS-Cache) by which caches may declare them\nselves open for business, and may obtain work to be done from network\nfilesystems. The header file is included by:\n\n\t#include \u003clinux/fscache-cache.h\u003e\n\nDocumentation for the API is also added to:\n\n\tDocumentation/filesystems/caching/backend-api.txt\n\nThis API is not usable without the implementation of the utility functions\nwhich will be added in further patches.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "2d6fff637037395cc946ef910a880b5fa67b5370", "tree": "a369011a976d5faf4fe45cf237503078cbbfb9b4", "parents": [ "266cf658efcf6ac33541a46740f74f50c79d2b6b" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:36 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:36 2009 +0100" }, "message": "FS-Cache: Add the FS-Cache netfs API and documentation\n\nAdd the API for a generic facility (FS-Cache) by which filesystems (such as AFS\nor NFS) may call on local caching capabilities without having to know anything\nabout how the cache works, or even if there is a cache:\n\n\t+---------+\n\t| | +--------------+\n\t| NFS |--+ | |\n\t| | | +--\u003e| CacheFS |\n\t+---------+ | +----------+ | | /dev/hda5 |\n\t | | | | +--------------+\n\t+---------+ +--\u003e| | |\n\t| | | |--+\n\t| AFS |-----\u003e| FS-Cache |\n\t| | | |--+\n\t+---------+ +--\u003e| | |\n\t | | | | +--------------+\n\t+---------+ | +----------+ | | |\n\t| | | +--\u003e| CacheFiles |\n\t| ISOFS |--+ | /var/cache |\n\t| | +--------------+\n\t+---------+\n\nGeneral documentation and documentation of the netfs specific API are provided\nin addition to the header files.\n\nAs this patch stands, it is possible to build a filesystem against the facility\nand attempt to use it. All that will happen is that all requests will be\nimmediately denied as if no cache is present.\n\nFurther patches will implement the core of the facility. The facility will\ntransfer requests from networking filesystems to appropriate caches if\npossible, or else gracefully deny them.\n\nIf this facility is disabled in the kernel configuration, then all its\noperations will trivially reduce to nothing during compilation.\n\nWHY NOT I_MAPPING?\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nI have added my own API to implement caching rather than using i_mapping to do\nthis for a number of reasons. These have been discussed a lot on the LKML and\nCacheFS mailing lists, but to summarise the basics:\n\n (1) Most filesystems don\u0027t do hole reportage. Holes in files are treated as\n blocks of zeros and can\u0027t be distinguished otherwise, making it difficult\n to distinguish blocks that have been read from the network and cached from\n those that haven\u0027t.\n\n (2) The backing inode must be fully populated before being exposed to\n userspace through the main inode because the VM/VFS goes directly to the\n backing inode and does not interrogate the front inode\u0027s VM ops.\n\n Therefore:\n\n (a) The backing inode must fit entirely within the cache.\n\n (b) All backed files currently open must fit entirely within the cache at\n \t the same time.\n\n (c) A working set of files in total larger than the cache may not be\n \t cached.\n\n (d) A file may not grow larger than the available space in the cache.\n\n (e) A file that\u0027s open and cached, and remotely grows larger than the\n \t cache is potentially stuffed.\n\n (3) Writes go to the backing filesystem, and can only be transferred to the\n network when the file is closed.\n\n (4) There\u0027s no record of what changes have been made, so the whole file must\n be written back.\n\n (5) The pages belong to the backing filesystem, and all metadata associated\n with that page are relevant only to the backing filesystem, and not\n anything stacked atop it.\n\nOVERVIEW\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nFS-Cache provides (or will provide) the following facilities:\n\n (1) Caches can be added / removed at any time, even whilst in use.\n\n (2) Adds a facility by which tags can be used to refer to caches, even if\n they\u0027re not available yet.\n\n (3) More than one cache can be used at once. Caches can be selected\n explicitly by use of tags.\n\n (4) The netfs is provided with an interface that allows either party to\n withdraw caching facilities from a file (required for (1)).\n\n (5) A netfs may annotate cache objects that belongs to it. This permits the\n storage of coherency maintenance data.\n\n (6) Cache objects will be pinnable and space reservations will be possible.\n\n (7) The interface to the netfs returns as few errors as possible, preferring\n rather to let the netfs remain oblivious.\n\n (8) Cookies are used to represent indices, files and other objects to the\n netfs. The simplest cookie is just a NULL pointer - indicating nothing\n cached there.\n\n (9) The netfs is allowed to propose - dynamically - any index hierarchy it\n desires, though it must be aware that the index search function is\n recursive, stack space is limited, and indices can only be children of\n indices.\n\n(10) Indices can be used to group files together to reduce key size and to make\n group invalidation easier. The use of indices may make lookup quicker,\n but that\u0027s cache dependent.\n\n(11) Data I/O is effectively done directly to and from the netfs\u0027s pages. The\n netfs indicates that page A is at index B of the data-file represented by\n cookie C, and that it should be read or written. The cache backend may or\n may not start I/O on that page, but if it does, a netfs callback will be\n invoked to indicate completion. The I/O may be either synchronous or\n asynchronous.\n\n(12) Cookies can be \"retired\" upon release. At this point FS-Cache will mark\n them as obsolete and the index hierarchy rooted at that point will get\n recycled.\n\n(13) The netfs provides a \"match\" function for index searches. In addition to\n saying whether a match was made or not, this can also specify that an\n entry should be updated or deleted.\n\nFS-Cache maintains a virtual index tree in which all indices, files, objects\nand pages are kept. Bits of this tree may actually reside in one or more\ncaches.\n\n FSDEF\n |\n +------------------------------------+\n | |\n NFS AFS\n | |\n +--------------------------+ +-----------+\n | | | |\n homedir mirror afs.org redhat.com\n | | |\n +------------+ +---------------+ +----------+\n | | | | | |\n 00001 00002 00007 00125 vol00001 vol00002\n | | | | |\n +---+---+ +-----+ +---+ +------+------+ +-----+----+\n | | | | | | | | | | | | |\nPG0 PG1 PG2 PG0 XATTR PG0 PG1 DIRENT DIRENT DIRENT R/W R/O Bak\n | |\n PG0 +-------+\n | |\n 00001 00003\n |\n +---+---+\n | | |\n PG0 PG1 PG2\n\nIn the example above, two netfs\u0027s can be seen to be backed: NFS and AFS. These\nhave different index hierarchies:\n\n (*) The NFS primary index will probably contain per-server indices. Each\n server index is indexed by NFS file handles to get data file objects.\n Each data file objects can have an array of pages, but may also have\n further child objects, such as extended attributes and directory entries.\n Extended attribute objects themselves have page-array contents.\n\n (*) The AFS primary index contains per-cell indices. Each cell index contains\n per-logical-volume indices. Each of volume index contains up to three\n indices for the read-write, read-only and backup mirrors of those volumes.\n Each of these contains vnode data file objects, each of which contains an\n array of pages.\n\nThe very top index is the FS-Cache master index in which individual netfs\u0027s\nhave entries.\n\nAny index object may reside in more than one cache, provided it only has index\nchildren. Any index with non-index object children will be assumed to only\nreside in one cache.\n\nThe FS-Cache overview can be found in:\n\n\tDocumentation/filesystems/caching/fscache.txt\n\nThe netfs API to FS-Cache can be found in:\n\n\tDocumentation/filesystems/caching/netfs-api.txt\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "266cf658efcf6ac33541a46740f74f50c79d2b6b", "tree": "5c83b0879892d509e598dfd54be3ba3679ecd348", "parents": [ "03fb3d2af96c2783c3a5bc03f3d984cf422f0e69" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:36 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:36 2009 +0100" }, "message": "FS-Cache: Recruit a page flags for cache management\n\nRecruit a page flag to aid in cache management. The following extra flag is\ndefined:\n\n (1) PG_fscache (PG_private_2)\n\n The marked page is backed by a local cache and is pinning resources in the\n cache driver.\n\nIf PG_fscache is set, then things that checked for PG_private will now also\ncheck for that. This includes things like truncation and page invalidation.\nThe function page_has_private() had been added to make the checks for both\nPG_private and PG_private_2 at the same time.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "03fb3d2af96c2783c3a5bc03f3d984cf422f0e69", "tree": "6618f82f8be26ba2c7ac38d6e6e16befc8e1140f", "parents": [ "8f0aa2f25b31ba27db84259141e52ee6ec0d2820" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "message": "FS-Cache: Release page-\u003eprivate after failed readahead\n\nThe attached patch causes read_cache_pages() to release page-private data on a\npage for which add_to_page_cache() fails. If the filler function fails, then\nthe problematic page is left attached to the pagecache (with appropriate flags\nset, one presumes) and the remaining to-be-attached pages are invalidated and\ndiscarded. This permits pages with caching references associated with them to\nbe cleaned up.\n\nThe invalidatepage() address space op is called (indirectly) to do the honours.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "8f0aa2f25b31ba27db84259141e52ee6ec0d2820", "tree": "f2935c02ac8508dacd125bb1c8bb6f4879fe778e", "parents": [ "12e22c5e4bc08ab4b05ac079fe40d9891c5e81a0" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "message": "Document the slow work thread pool\n\nDocument the slow work thread pool.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "12e22c5e4bc08ab4b05ac079fe40d9891c5e81a0", "tree": "e3d34a8f21d4c00dff311dfef564c59a76e1ae70", "parents": [ "109d9272c423f46604d45fedfe87e21ee0b25180" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "message": "Make the slow work pool configurable\n\nMake the slow work pool configurable through /proc/sys/kernel/slow-work.\n\n (*) /proc/sys/kernel/slow-work/min-threads\n\n The minimum number of threads that should be in the pool as long as it is\n in use. This may be anywhere between 2 and max-threads.\n\n (*) /proc/sys/kernel/slow-work/max-threads\n\n The maximum number of threads that should in the pool. This may be\n anywhere between min-threads and 255 or NR_CPUS * 2, whichever is greater.\n\n (*) /proc/sys/kernel/slow-work/vslow-percentage\n\n The percentage of active threads in the pool that may be used to execute\n very slow work items. This may be between 1 and 99. The resultant number\n is bounded to between 1 and one fewer than the number of active threads.\n This ensures there is always at least one thread that can process very\n slow work items, and always at least one thread that won\u0027t.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "07fe7cb7c7c179f473fd9c823348fd3eb5dad369", "tree": "516c959de929a4c39870629e550b3307601fa73f", "parents": [ "8fe74cf053de7ad2124a894996f84fa890a81093" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Apr 03 16:42:35 2009 +0100" }, "message": "Create a dynamically sized pool of threads for doing very slow work items\n\nCreate a dynamically sized pool of threads for doing very slow work items, such\nas invoking mkdir() or rmdir() - things that may take a long time and may\nsleep, holding mutexes/semaphores and hogging a thread, and are thus unsuitable\nfor workqueues.\n\nThe number of threads is always at least a settable minimum, but more are\nstarted when there\u0027s more work to do, up to a limit. Because of the nature of\nthe load, it\u0027s not suitable for a 1-thread-per-CPU type pool. A system with\none CPU may well want several threads.\n\nThis is used by FS-Cache to do slow caching operations in the background, such\nas looking up, creating or deleting cache objects.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Steve Dickson \u003csteved@redhat.com\u003e\nAcked-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nTested-by: Daire Byrne \u003cDaire.Byrne@framestore.com\u003e\n" }, { "commit": "f7ab34ea723ed304b19698efca85d6f40cecd99b", "tree": "28a609a654a24bc40d694fd2ec87a1f785c97c79", "parents": [ "512a004382f2c60d5c4f855476ba965adc00250c" ], "author": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Fri Apr 03 01:34:35 2009 -0400" }, "committer": { "name": "Theodore Ts\u0027o", "email": "tytso@mit.edu", "time": "Fri Apr 03 01:34:35 2009 -0400" }, "message": "ext3: Add replace-on-truncate hueristics for data\u003dwriteback mode\n\nIn data\u003dwriteback mode, start an asynchronous flush when closing a\nfile which had been previously truncated down to zero. This lowers\nthe probability of data loss in the case of applications that attempt\nto replace a file using truncate.\n\nSigned-off-by: \"Theodore Ts\u0027o\" \u003ctytso@mit.edu\u003e\n" }, { "commit": "8fe74cf053de7ad2124a894996f84fa890a81093", "tree": "77dcd8fbf33ce53a3821942233962fb28c6f2848", "parents": [ "c2eb2fa6d2b6fe122d3479ec5b28d978418b2698", "ced117c73edc917e96dea7cca98c91383f0792f7" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 21:09:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 21:09:10 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:\n Remove two unneeded exports and make two symbols static in fs/mpage.c\n Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225\n Trim includes of fdtable.h\n Don\u0027t crap into descriptor table in binfmt_som\n Trim includes in binfmt_elf\n Don\u0027t mess with descriptor table in load_elf_binary()\n Get rid of indirect include of fs_struct.h\n New helper - current_umask()\n check_unsafe_exec() doesn\u0027t care about signal handlers sharing\n New locking/refcounting for fs_struct\n Take fs_struct handling to new file (fs/fs_struct.c)\n Get rid of bumping fs_struct refcount in pivot_root(2)\n Kill unsharing fs_struct in __set_personality()\n" }, { "commit": "c2eb2fa6d2b6fe122d3479ec5b28d978418b2698", "tree": "bf709d2cd22b338ba78fe024cbc41e479557df68", "parents": [ "ef8a97bbc92ec07e3a07a81cc011dc549f8c7a23", "029a2edbd36f5e34ff1aebfba1bca31b5ac9899e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 21:06:42 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 21:06:42 2009 -0700" }, "message": "Merge branch \u0027drm-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6\n\n* \u0027drm-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (21 commits)\n drm/radeon: load the right microcode on rs780\n drm: remove unused \"can_grow\" parameter from drm_crtc_helper_initial_config\n drm: fix EDID backward compat check\n drm: sync the mode validation for INTERLACE/DBLSCAN\n drm: fix typo in edid vendor parsing.\n DRM: drm_crtc_helper.h doesn\u0027t actually need i2c.h\n drm: fix missing inline function on 32-bit powerpc.\n drm: Use pgprot_writecombine in GEM GTT mapping to get the right bits for !PAT.\n drm/i915: Add a spinlock to protect the active_list\n drm/i915: Fix SDVO TV support\n drm/i915: Fix SDVO CREATE_PREFERRED_INPUT_TIMING command\n drm/i915: Fix error in SDVO DTD and modeline convert\n drm/i915: Fix SDVO command debug function\n drm/i915: fix TV mode setting in property change\n drm/i915: only set TV mode when any property changed\n drm/i915: clean up udelay usage\n drm/i915: add VGA hotplug support for 945+\n drm/i915: correctly set IGD device\u0027s gtt size for KMS.\n drm/i915: avoid hanging on to a stale pointer to raw_edid.\n drm/i915: check for -EINVAL from vm_insert_pfn\n ...\n" }, { "commit": "ef8a97bbc92ec07e3a07a81cc011dc549f8c7a23", "tree": "82a95f16d9236bc35a4cfd42ba8cab61981efda8", "parents": [ "4f032ac4122a77dbabf7a24b2739b2790448180f", "6c8ad3b07f7d9efdc41396db6da0aed906922701" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 21:05:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 21:05:30 2009 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (54 commits)\n glge: remove unused #include \u003cversion.h\u003e\n dnet: remove unused #include \u003cversion.h\u003e\n tcp: miscounts due to tcp_fragment pcount reset\n tcp: add helper for counter tweaking due mid-wq change\n hso: fix for the \u0027invalid frame length\u0027 messages\n hso: fix for crash when unplugging the device\n fsl_pq_mdio: Fix compile failure\n fsl_pq_mdio: Revive UCC MDIO support\n ucc_geth: Pass proper device to DMA routines, otherwise oops happens\n i.MX31: Fixing cs89x0 network building to i.MX31ADS\n tc35815: Fix build error if NAPI enabled\n hso: add Vendor/Product ID\u0027s for new devices\n ucc_geth: Remove unused header\n gianfar: Remove unused header\n kaweth: Fix locking to be SMP-safe\n net: allow multiple dev per napi with GRO\n r8169: reset IntrStatus after chip reset\n ixgbe: Fix potential memory leak/driver panic issue while setting up Tx \u0026 Rx ring parameters\n ixgbe: fix ethtool -A|a behavior\n ixgbe: Patch to fix driver panic while freeing up tx \u0026 rx resources\n ...\n" }, { "commit": "f5f7eac41db827a47b2163330eecd7bb55ae9f12", "tree": "ae8ab45dba49c1b3d5f2088051389e6fd3e4a24c", "parents": [ "e8c158bb313c1df421eab7dc4299cd39cbbf5895" ], "author": { "name": "Robin Holt", "email": "holt@sgi.com", "time": "Thu Apr 02 16:59:46 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:11 2009 -0700" }, "message": "Allow rwlocks to re-enable interrupts\n\nPass the original flags to rwlock arch-code, so that it can re-enable\ninterrupts if implemented for that architecture.\n\nInitially, make __raw_read_lock_flags and __raw_write_lock_flags stubs\nwhich just do the same thing as non-flags variants.\n\nSigned-off-by: Petr Tesarik \u003cptesarik@suse.cz\u003e\nSigned-off-by: Robin Holt \u003cholt@sgi.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e8c158bb313c1df421eab7dc4299cd39cbbf5895", "tree": "8a5f1d01e58d0e358b2b0c9407fc494912e83c27", "parents": [ "41d577aa35aa0504fe28b76a948908bdb7fbec81" ], "author": { "name": "Robin Holt", "email": "holt@sgi.com", "time": "Thu Apr 02 16:59:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:10 2009 -0700" }, "message": "Factor out #ifdefs from kernel/spinlock.c to LOCK_CONTENDED_FLAGS\n\nSGI has observed that on large systems, interrupts are not serviced for a\nlong period of time when waiting for a rwlock. The following patch series\nre-enables irqs while waiting for the lock, resembling the code which is\nalready there for spinlocks.\n\nI only made the ia64 version, because the patch adds some overhead to the\nfast path. I assume there is currently no demand to have this for other\narchitectures, because the systems are not so large. Of course, the\npossibility to implement raw_{read|write}_lock_flags for any architecture\nis still there.\n\nThis patch:\n\nThe new macro LOCK_CONTENDED_FLAGS expands to the correct implementation\ndepending on the config options, so that IRQ\u0027s are re-enabled when\npossible, but they remain disabled if CONFIG_LOCKDEP is set.\n\nSigned-off-by: Petr Tesarik \u003cptesarik@suse.cz\u003e\nSigned-off-by: Robin Holt \u003cholt@sgi.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f3554f4bc69803ac2baaf7cf2aa4339e1f4b693e", "tree": "52505043de254dc3e34dad7110724fcc1f489eb9", "parents": [ "6949a6318e60aeb9c755679ac7f978aefe8c1722" ], "author": { "name": "Gerd Hoffmann", "email": "kraxel@redhat.com", "time": "Thu Apr 02 16:59:23 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:08 2009 -0700" }, "message": "preadv/pwritev: Add preadv and pwritev system calls.\n\nThis patch adds preadv and pwritev system calls. These syscalls are a\npretty straightforward combination of pread and readv (same for write).\nThey are quite useful for doing vectored I/O in threaded applications.\nUsing lseek+readv instead opens race windows you\u0027ll have to plug with\nlocking.\n\nOther systems have such system calls too, for example NetBSD, check\nhere: http://www.daemon-systems.org/man/preadv.2.html\n\nThe application-visible interface provided by glibc should look like\nthis to be compatible to the existing implementations in the *BSD family:\n\n ssize_t preadv(int d, const struct iovec *iov, int iovcnt, off_t offset);\n ssize_t pwritev(int d, const struct iovec *iov, int iovcnt, off_t offset);\n\nThis prototype has one problem though: On 32bit archs is the (64bit)\noffset argument unaligned, which the syscall ABI of several archs doesn\u0027t\nallow to do. At least s390 needs a wrapper in glibc to handle this. As\nwe\u0027ll need a wrappers in glibc anyway I\u0027ve decided to push problem to\nglibc entriely and use a syscall prototype which works without\narch-specific wrappers inside the kernel: The offset argument is\nexplicitly splitted into two 32bit values.\n\nThe patch sports the actual system call implementation and the windup in\nthe x86 system call tables. Other archs follow as separate patches.\n\nSigned-off-by: Gerd Hoffmann \u003ckraxel@redhat.com\u003e\nCc: Arnd Bergmann \u003carnd@arndb.de\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \u003clinux-api@vger.kernel.org\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "04d491ab2a53008a1aa98ac09561768c7f3adda3", "tree": "ab8fff6fb8674c8061b733ce64d6d6fba9d68ff3", "parents": [ "23c36c1aec895fd52d7dd8cd3ce4bbce43c969fd" ], "author": { "name": "Neil Horman", "email": "nhorman@tuxdriver.com", "time": "Thu Apr 02 16:58:57 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:04 2009 -0700" }, "message": "kexec: add dmesg log symbols to /proc/vmcoreinfo lists\n\nIt would be nice to be able to extract the dmesg log from a vmcore file\nwithout needing to keep the debug symbols for the running kernel handy all\nthe time. We have a facility to do this in /proc/vmcore. This patch adds\nthe log_buf and log_end symbols to the vmcoreinfo area so that tools (like\nmakedumpfile) can easily extract the dmesg logs from a vmcore image.\n\n[akpm@linux-foundation.org: several fixes and cleanups]\n[akpm@linux-foundation.org: fix unused log_buf_kexec_setup()]\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nCc: Simon Horman \u003chorms@verge.net.au\u003e\nAcked-by: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nCc: Simon Horman \u003chorms@verge.net.au\u003e\nCc: Vivek Goyal \u003cvgoyal@redhat.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7c5ff4f92e2b47c56d777a5adbadd9a52841b635", "tree": "5cd4d13300b523d7cc3e8afd5d30f587a0c42cef", "parents": [ "8641a3845d066f841ca591ac1c480b13bea7d849" ], "author": { "name": "Harry Ciao", "email": "qingtao.cao@windriver.com", "time": "Thu Apr 02 16:58:48 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:03 2009 -0700" }, "message": "pci: Add AMD8111 PCI Bridge PCI Device ID\n\nAdd the PCI Device ID of the PCI Bridge Controller on AMD8111 chip.\n\nSigned-off-by: Harry Ciao \u003cqingtao.cao@windriver.com\u003e\nCc: Doug Thompson \u003cnorsk5@yahoo.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1b0f7ffd0ea27cd3a0b9ca04e3df9522048c32a3", "tree": "a8c27acdf95f55f93fe86661c6cba4cd36c8e4f1", "parents": [ "52ee2dfdd4f51cf422ea6a96a0846dc94244aa37" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Apr 02 16:58:39 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:02 2009 -0700" }, "message": "pids: kill signal_struct-\u003e __pgrp/__session and friends\n\nWe are wasting 2 words in signal_struct without any reason to implement\ntask_pgrp_nr() and task_session_nr().\n\ntask_session_nr() has no callers since\n2e2ba22ea4fd4bb85f0fa37c521066db6775cbef, we can remove it.\n\ntask_pgrp_nr() is still (I believe wrongly) used in fs/autofsX and\nfs/coda.\n\nThis patch reimplements task_pgrp_nr() via task_pgrp_nr_ns(), and kills\n__pgrp/__session and the related helpers.\n\nThe change in drivers/char/tty_io.c is cosmetic, but hopefully makes sense\nanyway.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nAcked-by: Alan Cox \u003cnumber6@the-village.bc.nu\u003e\t\t[tty parts]\nCc: Cedric Le Goater \u003cclg@fr.ibm.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Eric Biederman \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@linux.vnet.ibm.com\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": "52ee2dfdd4f51cf422ea6a96a0846dc94244aa37", "tree": "e15753e01d2c2fbe980edc45f78a9ae77d2cf891", "parents": [ "2ae448efc87df6d328f5835969076c7f9fce59c3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Apr 02 16:58:38 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:02 2009 -0700" }, "message": "pids: refactor vnr/nr_ns helpers to make them safe\n\nInho, the safety rules for vnr/nr_ns helpers are horrible and buggy.\n\ntask_pid_nr_ns(task) needs rcu/tasklist depending on task \u003d\u003d current.\n\nAs for \"special\" pids, vnr/nr_ns helpers always need rcu. However, if\ntask !\u003d current, they are unsafe even under rcu lock, we can\u0027t trust\ntask-\u003egroup_leader without the special checks.\n\nAnd almost every helper has a callsite which needs a fix.\n\nAlso, it is a bit annoying that the implementations of, say,\ntask_pgrp_vnr() and task_pgrp_nr_ns() are not \"symmetrical\".\n\nThis patch introduces the new helper, __task_pid_nr_ns(), which is always\nsafe to use, and turns all other helpers into the trivial wrappers.\n\nAfter this I\u0027ll send another patch which converts task_tgid_xxx() as well,\nthey\u0027re are a bit special.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Louis Rilling \u003cLouis.Rilling@kerlabs.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@linux.vnet.ibm.com\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": "6dda81f4384b94930826eded254d8c16f89a9248", "tree": "a7b27ca16a6feba637cb01e68b54c58b6ca07bc2", "parents": [ "8e654fba4a376f436bdfe361fc5cdbc87ac09b35" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Apr 02 16:58:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:02 2009 -0700" }, "message": "pids: document task_pgrp/task_session is not safe without tasklist/rcu\n\nEven if task \u003d\u003d current, it is not safe to dereference the result of\ntask_pgrp/task_session. We can race with another thread which changes the\nspecial pid via setpgid/setsid.\n\nDocument this. The next 2 patches give an example of the unsafe usage, we\nhave more bad users.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Louis Rilling \u003cLouis.Rilling@kerlabs.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Sukadev Bhattiprolu \u003csukadev@linux.vnet.ibm.com\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": "1f80769ffd36e74357fe896dc43dddf1af1510f3", "tree": "633e513143c276b3bcee9e4743938902f906a919", "parents": [ "a50b0aa4bd9a7d42112442a385f3dc0e775284dd" ], "author": { "name": "Paul Fulghum", "email": "paulkf@microgate.com", "time": "Thu Apr 02 16:58:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:01 2009 -0700" }, "message": "synclink_gt: add clock options\n\nAdd support for x8 asynchronous sample rate and ability to specify base\nclock frequency.\n\nSigned-off-by: Paul Fulghum \u003cpaulkf@microgate.com\u003e\nAcked-by: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a50b0aa4bd9a7d42112442a385f3dc0e775284dd", "tree": "f4707e5a1c524545c8caa40eebbe8764c20bfe93", "parents": [ "ab4ad55512e95b68ca3e25516068e18874f89252" ], "author": { "name": "Kirill A. Shutemov", "email": "kirill@shutemov.name", "time": "Thu Apr 02 16:58:29 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:01 2009 -0700" }, "message": "struct linux_binprm: drop unused fields\n\nSigned-off-by: Kirill A. Shutemov \u003ckirill@shutemov.name\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "40e8a10de2c9f87e892dcd5a6f9d1b208329ffea", "tree": "e00ac938e40dfbc0595346487485317af84c6094", "parents": [ "2355b70fd59cb5be7de2052a9edeee7afb7ff099" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Thu Apr 02 16:58:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:00 2009 -0700" }, "message": "cpu hotplug: remove unused cpuhotplug_mutex_lock()\n\ncpuhotplug_mutex_lock() is not used, remove it.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bb24c679a51b1a9b726b901330649e3861814ac0", "tree": "0acb31023b4b6ff49e173005fb9baaa3f3b74b2f", "parents": [ "5dfc80be73dd0c212d2e6dd8dbf5afa07e680bbe" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Thu Apr 02 16:58:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:05:00 2009 -0700" }, "message": "tracehook_notify_death: use task_detached() helper\n\nNow that task_detached() is exported, change tracehook_notify_death() to\nuse this helper, nobody else checks -\u003eexit_signal \u003d\u003d -1 by hand.\n\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: \"Metzger, Markus T\" \u003cmarkus.t.metzger@intel.com\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "39c626ae47c469abdfd30c6e42eff884931380d6" }