)]}' { "log": [ { "commit": "8448502cfc915f70e3f8923849ade27d472044cb", "tree": "964522eb36ea5424ece910092da5dce773c1f6cc", "parents": [ "8de6d308bab4f67fcf953562f9f08f9527cad72d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:41 2008 -0700" }, "message": "workqueues: do CPU_UP_CANCELED if CPU_UP_PREPARE fails\n\nThe bug was pointed out by Akinobu Mita \u003cakinobu.mita@gmail.com\u003e, and this\npatch is based on his original patch.\n\nworkqueue_cpu_callback(CPU_UP_PREPARE) expects that if it returns\nNOTIFY_BAD, _cpu_up() will send CPU_UP_CANCELED then.\n\nHowever, this is not true since\n\n\t\"cpu hotplug: cpu: deliver CPU_UP_CANCELED only to NOTIFY_OKed callbacks with CPU_UP_PREPARE\"\n\tcommit: a0d8cdb652d35af9319a9e0fb7134de2a276c636\n\nThe callback which has returned NOTIFY_BAD will not receive\nCPU_UP_CANCELED. Change the code to fulfil the CPU_UP_CANCELED logic if\nCPU_UP_PREPARE fails.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nReported-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8de6d308bab4f67fcf953562f9f08f9527cad72d", "tree": "d896d82088d50a6c9d56300225605c5658f44549", "parents": [ "ef1ca236b8d645349ed6569598ae3f6c1b9511c0" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: schedule_on_each_cpu() can use schedule_work_on()\n\nschedule_on_each_cpu() can use schedule_work_on() to avoid the code\nduplication.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef1ca236b8d645349ed6569598ae3f6c1b9511c0", "tree": "a193741b4aca43c90fcf2bf8be0d999d27b99eba", "parents": [ "a67da70dc0955580665f5444f318b92e69a3c272" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: queue_work() can use queue_work_on()\n\nqueue_work() can use queue_work_on() to avoid the code duplication.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a67da70dc0955580665f5444f318b92e69a3c272", "tree": "204164627e0fb6495516b24cca005845f492f600", "parents": [ "69b895fd13d73aebf62b75502eb6513d43057ba3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:52 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: lockdep annotations for flush_work()\n\nAdd lockdep annotations to flush_work() and update the comment.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jarek Poplawski \u003cjarkao2@o2.pl\u003e\nAcked-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3da1c84c00c7e5fa8348336bd8c342f9128b0f14", "tree": "af960c65a670319fa86846a493a6d97f9fb37cd9", "parents": [ "8616a89ab761239c963eea3a63be383f127cc7e8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:50 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: make get_online_cpus() useable for work-\u003efunc()\n\nworkqueue_cpu_callback(CPU_DEAD) flushes cwq-\u003ethread under\ncpu_maps_update_begin(). This means that the multithreaded workqueues\ncan\u0027t use get_online_cpus() due to the possible deadlock, very bad and\nvery old problem.\n\nIntroduce the new state, CPU_POST_DEAD, which is called after\ncpu_hotplug_done() but before cpu_maps_update_done().\n\nChange workqueue_cpu_callback() to use CPU_POST_DEAD instead of CPU_DEAD.\nThis means that create/destroy functions can\u0027t rely on get_online_cpus()\nany longer and should take cpu_add_remove_lock instead.\n\n[akpm@linux-foundation.org: fix CONFIG_SMP\u003dn]\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Gautham R Shenoy \u003cego@in.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nCc: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8616a89ab761239c963eea3a63be383f127cc7e8", "tree": "b74212be00198b64d0c3fcbf552e0e3ced01a350", "parents": [ "db700897224b5ebdf852f2d38920ce428940d059" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: schedule_on_each_cpu: use flush_work()\n\nChange schedule_on_each_cpu() to use flush_work() instead of\nflush_workqueue(), this way we don\u0027t wait for other work_struct\u0027s which\ncan be queued meanwhile.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db700897224b5ebdf852f2d38920ce428940d059", "tree": "98f0052929e79b35393352addde70fa5e97b8dee", "parents": [ "1a4d9b0aa0d3c50314e57525a5e5ec2cfc48b4c8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:49 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: implement flush_work()\n\nMost of users of flush_workqueue() can be changed to use cancel_work_sync(),\nbut sometimes we really need to wait for the completion and cancelling is not\nan option. schedule_on_each_cpu() is good example.\n\nAdd the new helper, flush_work(work), which waits for the completion of the\nspecific work_struct. More precisely, it \"flushes\" the result of of the last\nqueue_work() which is visible to the caller.\n\nFor example, this code\n\n\tqueue_work(wq, work);\n\t/* WINDOW */\n\tqueue_work(wq, work);\n\n\tflush_work(work);\n\ndoesn\u0027t necessary work \"as expected\". What can happen in the WINDOW above is\n\n\t- wq starts the execution of work-\u003efunc()\n\n\t- the caller migrates to another CPU\n\nnow, after the 2nd queue_work() this work is active on the previous CPU, and\nat the same time it is queued on another. In this case flush_work(work) may\nreturn before the first work-\u003efunc() completes.\n\nIt is trivial to add another helper\n\n\tint flush_work_sync(struct work_struct *work)\n\t{\n\t\treturn flush_work(work) || wait_on_work(work);\n\t}\n\nwhich works \"more correctly\", but it has to iterate over all CPUs and thus\nit much slower than flush_work().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nAcked-by: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1a4d9b0aa0d3c50314e57525a5e5ec2cfc48b4c8", "tree": "2ea94cce9fe2cfbcfdc2fd25d33e57f31e0b2699", "parents": [ "565b9b14e7f48131bca58840aa404bbef058fa89" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "workqueues: insert_work: use \"list_head *\" instead of \"int tail\"\n\ninsert_work() inserts the new work_struct before or after cwq-\u003eworklist,\ndepending on the \"int tail\" parameter. Change it to accept \"list_head *\"\ninstead, this shrinks .text a bit and allows us to insert the barrier\nafter specific work_struct.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Jarek Poplawski \u003cjarkao2@gmail.com\u003e\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nCc: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a94e2d408eaedbd85aae259621d46fafc10479a2", "tree": "d853f7b2e183875c6ad90fb6ab38e084b037d043", "parents": [ "182c515fd2a942623aed4e4e0e0b37fe96571b05" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:46 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "coredump: kill mm-\u003ecore_done\n\nNow that we have core_state-\u003edumper list we can use it to wake up the\nsub-threads waiting for the coredump completion.\n\nThis uglifies the code and .text grows by 47 bytes, but otoh mm_struct\nlessens by sizeof(struct completion). Also, with this change we can\ndecouple exit_mm() from the coredumping code.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b564daf806d492dd4f7afe9b6c83b8d35d137669", "tree": "fbd6d186035b9a0a270fca97887da5d6b106a60c", "parents": [ "9d5b327bf198d2720666de958dcc2ae219d86952" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:40 2008 -0700" }, "message": "coredump: construct the list of coredumping threads at startup time\n\nbinfmt-\u003ecore_dump() has to iterate over the all threads in system in order\nto find the coredumping threads and construct the list using the\nGFP_ATOMIC allocations.\n\nWith this patch each thread allocates the list node on exit_mm()\u0027s stack and\nadds itself to the list.\n\nThis allows us to do further changes:\n\n\t- simplify -\u003ecore_dump()\n\n\t- change exit_mm() to clear -\u003emm first, then wait for -\u003ecore_done.\n\t this makes the coredumping process visible to oom_kill\n\n\t- kill mm-\u003ecore_done\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c5f1cc8c1828486a61ab3e575da6e2c62b34d399", "tree": "9cc88e7d1dae063482e1e9117ded747578cbd7ad", "parents": [ "8cd9c249128a59e8e833d454a784b0cbd338d468" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: turn core_state-\u003enr_threads into atomic_t\n\nTurn core_state-\u003enr_threads into atomic_t and kill now unneeded\ndown_write(\u0026mm-\u003emmap_sem) in exit_mm().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "999d9fc1670bc082928b93b11d1f2e0e417d973c", "tree": "e540e7fd2fab970ba2be5e39ac9f8282a373bc24", "parents": [ "32ecb1f26dd50eeaac4e3f4dea4541c97848e459" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: move mm-\u003ecore_waiters into struct core_state\n\nMove mm-\u003ecore_waiters into \"struct core_state\" allocated on stack. This\nshrinks mm_struct a little bit and allows further changes.\n\nThis patch mostly does s/core_waiters/core_state. The only essential\nchange is that coredump_wait() must clear mm-\u003ecore_state before return.\n\nThe coredump_wait()\u0027s path is uglified and .text grows by 30 bytes, this\nis fixed by the next patch.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "32ecb1f26dd50eeaac4e3f4dea4541c97848e459", "tree": "4c2f3b6af9ff6babf2f395432de8e870508f2ec3", "parents": [ "24d5288f06ed8b3a368eba967d587cdb012dfdf7" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:41 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "coredump: turn mm-\u003ecore_startup_done into the pointer to struct core_state\n\nmm-\u003ecore_startup_done points to \"struct completion startup_done\" allocated\non the coredump_wait()\u0027s stack. Introduce the new structure, core_state,\nwhich holds this \"struct completion\". This way we can add more info\nvisible to the threads participating in coredump without enlarging\nmm_struct.\n\nNo changes in affected .o files.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "246bb0b1deb29726990620d8b5e55ca29f331362", "tree": "5173b9e0c1d18934a8b2693c690a7162acb1bca8", "parents": [ "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kill PF_BORROWED_MM in favour of PF_KTHREAD\n\nKill PF_BORROWED_MM. Change use_mm/unuse_mm to not play with -\u003eflags, and\ndo s/PF_BORROWED_MM/PF_KTHREAD/ for a couple of other users.\n\nNo functional changes yet. But this allows us to do further\nfixes/cleanups.\n\noom_kill/ptrace/etc often check \"p-\u003emm !\u003d NULL\" to filter out the\nkthreads, this is wrong because of use_mm(). The problem with\nPF_BORROWED_MM is that we need task_lock() to avoid races. With this\npatch we can check PF_KTHREAD directly, or use a simple lockless helper:\n\n\t/* The result must not be dereferenced !!! */\n\tstruct mm_struct *__get_task_mm(struct task_struct *tsk)\n\t{\n\t\tif (tsk-\u003eflags \u0026 PF_KTHREAD)\n\t\t\treturn NULL;\n\t\treturn tsk-\u003emm;\n\t}\n\nNote also ecard_task(). It runs with -\u003emm !\u003d NULL, but it\u0027s the kernel\nthread without PF_BORROWED_MM.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7b34e4283c685f5cc6ba6d30e939906eee0d4bcf", "tree": "6822edd5c63db79e97b8c5379a18a058bc5405ff", "parents": [ "3d749b9e676b26584a47e75c235aa6f69d0697ae" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "introduce PF_KTHREAD flag\n\nIntroduce the new PF_KTHREAD flag to mark the kernel threads. It is set\nby INIT_TASK() and copied to the forked childs (we could set it in\nkthreadd() along with PF_NOFREEZE instead).\n\ndaemonize() was changed as well. In that case testing of PF_KTHREAD is\nracy, but daemonize() is hopeless anyway.\n\nThis flag is cleared in do_execve(), before search_binary_handler().\nProbably not the best place, we can do this in exec_mmap() or in\nstart_thread(), or clear it along with PF_FORKNOEXEC. But I think this\ndoesn\u0027t matter in practice, and if do_execve() fails kthread should die\nsoon.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3d749b9e676b26584a47e75c235aa6f69d0697ae", "tree": "2db2dab84cde07c4872ac5e8d4078f2a3fc4271d", "parents": [ "364d3c13c17f45da6d638011078d4c4d3070d719" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "ptrace: simplify ptrace_stop()-\u003esigkill_pending() path\n\n1. SIGKILL can\u0027t be blocked, remove this check from sigkill_pending().\n\n2. When ptrace_stop() sees sigkill_pending() \u003d\u003d T, it can just return.\n Kill \"int killed\" and simplify the code. This also is more correct,\n the tracer shouldn\u0027t see us in TASK_TRACED if we are not going to\n stop.\n\nI strongly believe this code needs further changes. We should do the \"was\nthis task killed\" check unconditionally, currently it depends on\narch_ptrace_stop_needed(). On the other hand, sigkill_pending() isn\u0027t\nvery clever. If the task was killed tkill(SIGKILL), the signal can be\nalready dequeued if the caller is do_exit().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bc64efd220dcd4449aef8dd2564d73127b583b09", "tree": "21739809b2ab9b13677cae99f175c3983114abc6", "parents": [ "d8878ba3f05ae5bbfad5a6e72e5121c0ea35f989" ], "author": { "name": "Gustavo Fernando Padovan", "email": "gustavo@las.ic.unicamp.br", "time": "Fri Jul 25 01:47:33 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "kernel/signal.c: change vars pid and tgid types to pid_t\n\nChange the type of pid and tgid variables from int to the POSIX type\npid_t.\n\nSigned-off-by: Gustavo F. Padovan \u003cgustavo@las.ic.unicamp.br\u003e\nCc: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d8878ba3f05ae5bbfad5a6e72e5121c0ea35f989", "tree": "31fbf7bd9605c103d8ef9e538beb54da8df04540", "parents": [ "e4901f92a8dbe843e76651a50f7a2a6dd3d53474" ], "author": { "name": "Michael Kerrisk", "email": "mtk.manpages@googlemail.com", "time": "Fri Jul 25 01:47:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:39 2008 -0700" }, "message": "signals: make siginfo_t si_utime + si_sstime report times in USER_HZ, not HZ\n\nIn the switch to configurable HZ in 2.6, the treatment of the si_utime and\nsi_stime fields that are exposed to userland via the siginfo structure\nlooks to have been botched. As things stand, these fields report times in\nunits of HZ, so that userland gets information that varies depending on\nthe HZ that the kernel was configured with. This patch changes the\nreported values to use USER_HZ units.\n\nSigned-off-by: Michael Kerrisk \u003cmtk.manpages@gmail.com\u003e\nAcked-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2b201a9eddf509e8e935b45e573648e36f4b623f", "tree": "84cbb34667bcde5566e5c3d127c9089bb9792dab", "parents": [ "92413d771e7123304fb4b9efd2a00cccc946e383" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:31 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: do_signal_stop: kill the SIGNAL_UNKILLABLE check\n\nfae5fa44f1fd079ffbed8e0add929dd7bbd1347f changed do_signal_stop() to check\nSIGNAL_UNKILLABLE, this wasn\u0027t needed. If signal_group_exit() \u003d\u003d F, the\nsignal sent to SIGNAL_UNKILLABLE task must be already filtered out by the\ncaller, get_signal_to_deliver(). And if signal_group_exit() \u003d\u003d T we are\nnot going to stop.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "92413d771e7123304fb4b9efd2a00cccc946e383", "tree": "c973360a9bec6c965b9f4b41923357feec14aa3a", "parents": [ "3854a771821c970065e3203a0b40ddc4101538cc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:30 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: dequeue_signal: don\u0027t check SIGNAL_GROUP_EXIT when setting SIGNAL_STOP_DEQUEUED\n\ndequeue_signal() checks SIGNAL_GROUP_EXIT before setting\nSIGNAL_STOP_DEQUEUED. This was added by\n788e05a67c343fa22f2ae1d3ca264e7f15c25eaf a long ago to avoid the\ncoredump/SIGSTOP race.\n\nSince then the related code was changed, and now this subtle check is both\nincomplete and unneeded at the same time. It is incomplete because\nnowadays exec() doesn\u0027t set SIGNAL_GROUP_EXIT, so in fact we should check\nsignal_group_exit() to avoid a similar race. Fortunately, we doesn\u0027t need\nthe check at all. The only function which relies on SIGNAL_STOP_DEQUEUED\nis do_signal_stop(), and it ignores this flag if signal_group_exit() \u003d\u003d T,\nthis covers the SIGNAL_GROUP_EXIT case.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3854a771821c970065e3203a0b40ddc4101538cc", "tree": "b6f56b8d426c4a9682dfc8605a08a5c60f96a599", "parents": [ "100360f03077663b7bef3af44805b6cf700c3bee" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "__exit_signal: don\u0027t take rcu lock\n\nThere is no reason for rcu_read_lock() in __exit_signal(). tsk-\u003esighand\ncan only be changed if tsk does exec, obviously this is not possible.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "100360f03077663b7bef3af44805b6cf700c3bee", "tree": "338cedfd71101fdaeb317fc0692d1bf93bd3a1a7", "parents": [ "d4434207616980885205c605697868c0f07e4378" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: change collect_signal() to return void\n\nWith the recent changes collect_signal() always returns true. Change it\nto return void and update the single caller.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d4434207616980885205c605697868c0f07e4378", "tree": "82415d69b92557e09d57f42c49aba05ef4775a89", "parents": [ "6715ca451cfff1c9ce4b33ad9918a1dacf43997c" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:28 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: collect_signal: simplify the \"still_pending\" logic\n\nFactor out sigdelset() calls and remove the \"still_pending\" variable.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6715ca451cfff1c9ce4b33ad9918a1dacf43997c", "tree": "a66cdfd7026e7ad40ad0675a35ff35886216ed5f", "parents": [ "96347e7759e2e433c427defa0fa1adfc8cce6226" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "signals: collect_signal: remove the unneeded sigismember() check\n\ncollect_signal() checks sigismember(\u0026list-\u003esignal, sig), this is not\nneeded. This \"sig\" was just found by next_signal(), so it must be valid.\n\nWe have a (completely broken) call to -\u003enotifier in between, but it must\nnot play with sigpending-\u003esignal bits or unlock -\u003esiglock.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "96347e7759e2e433c427defa0fa1adfc8cce6226", "tree": "0b78316c887be06b269288d7306d6cac038fe644", "parents": [ "4b7a1304267bff68260ae861784b27130e805be3" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:27 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "posix timers: release_posix_timer: kill the bogus put_task_struct(-\u003eit_process);\n\nrelease_posix_timer() can\u0027t be called with -\u003eit_process !\u003d NULL. Once\nsys_timer_create() sets -\u003eit_process it must not call\nrelease_posix_timer(), otherwise we can race with another thread doing\nsys_timer_delete(), this timer is visible to idr_find() and unlocked.\n\nThe same is true for two other callers (actually, for any possible\ncaller), sys_timer_delete() and itimer_delete(). They must clear\n-\u003eit_process before unlock_timer() + release_posix_timer().\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\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": "4b7a1304267bff68260ae861784b27130e805be3", "tree": "65065cc702a9d73fba4a85d0bdab5ed326a5b479", "parents": [ "da5ef6bb96158b0fc0d808704237a453af449124" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Jul 25 01:47:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "posix timers: timer_delete: remove the bogus \"-\u003eit_process !\u003d NULL\" check\n\nsys_timer_delete() and itimer_delete() check \"timer-\u003eit_process !\u003d NULL\",\nthis looks completely bogus. -\u003eit_process \u003d\u003d NULL means that this timer\nis already under destruction or it is not fully initialized, this must not\nhappen.\n\n\tsys_timer_delete: the timer is locked, and lock_timer() can\u0027t succeed\n\tif -\u003eit_process \u003d\u003d NULL.\n\n\titimer_delete: it is called by exit_itimers() when there are no other\n\tthreads which can play with signal_struct-\u003eposix_timers.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Roland McGrath \u003croland@redhat.com\u003e\nCc: john stultz \u003cjohnstul@us.ibm.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\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": "da5ef6bb96158b0fc0d808704237a453af449124", "tree": "a63113cc3f60c2a6916697bbb06d3c677fa7c121", "parents": [ "02412483777651a26b19a75e49c2a451a174ca9c" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: two minor code-cleanups\n\nIn cpuset_update_task_memory_state() local variable struct task_struct\n*tsk \u003d current;\n\nAnd local variable tsk is used 14 times and statement task_cs(tsk) is used\ntwice in this function. So using task_cs(tsk) instead of task_cs(current)\nis better for readability.\n\nAnd \"(struct cgroup_scanner *)\u0026scan\" is not good for readability also.\n(and \"container_of\" is used in cpuset_do_move_task(), not\n\"(cpuset_hotplug_scanner *)scan\")\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "02412483777651a26b19a75e49c2a451a174ca9c", "tree": "2289c80253b5e6be9b3fe3635e919bbe7a3bd03d", "parents": [ "489a5393a20dcbf91104052120eb2eff8791b61b" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: code-cleanup for started_after\n\ncgroup(cgroup_scan_tasks) will initialize heap-\u003egt for us. This patch\nremoves started_after() and its helper-function.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "489a5393a20dcbf91104052120eb2eff8791b61b", "tree": "63ed72ce1a7a5e4c5d361e8d1c7a876183d8bbf9", "parents": [ "c372e817afc629fea9ff6321313325ed0b4a855b" ], "author": { "name": "Lai Jiangshan", "email": "laijs@cn.fujitsu.com", "time": "Fri Jul 25 01:47:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: don\u0027t pass empty cpumasks to partition_sched_domains()\n\nI create lots of empty cpusets(empty cpumasks) and turn off the\n\"sched_load_balance\" in top cpuset.\n\nI found that all these empty cpumasks are passed to\npartition_sched_domains() in rebuild_sched_domains(), it\u0027s very\ntime-consuming for partition_sched_domains() and it\u0027s not need.\n\nIt also reduce memory consumed and some works in rebuild_sched_domains()\ntoo.\n\nSigned-off-by: Lai Jiangshan \u003claijs@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c372e817afc629fea9ff6321313325ed0b4a855b", "tree": "931188486a41a7923e4eb9b658a272b256b3c048", "parents": [ "f9b4fb8dabf38fb456c97f01aace07cb6e7c1723" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:47:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpuset: avoid unnecessary sched domains rebuilding\n\nWhen changing \u0027sched_relax_domain_level\u0027, don\u0027t rebuild sched domains if\n\u0027cpus\u0027 is empty or \u0027sched_load_balance\u0027 is not set.\n\nAlso make the comments of rebuild_sched_domains() more readable.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f9b4fb8dabf38fb456c97f01aace07cb6e7c1723", "tree": "07fbf909044858d6c50b4098f94c8f084df3924c", "parents": [ "0b2f630a28d53b5a2082a5275bc3334b10373508" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Fri Jul 25 01:47:22 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:38 2008 -0700" }, "message": "cpusets: update task\u0027s cpus_allowed and mems_allowed after CPU/NODE offline/online\n\nThe bug is that a task may run on the cpu/node which is not in its\ncpuset.cpus/ cpuset.mems.\n\nIt can be reproduced by the following commands:\n-----------------------------------\n# mkdir /dev/cpuset\n# mount -t cpuset xxx /dev/cpuset\n# mkdir /dev/cpuset/0\n# echo 0-1 \u003e /dev/cpuset/0/cpus\n# echo 0 \u003e /dev/cpuset/0/mems\n# echo $$ \u003e /dev/cpuset/0/tasks\n# echo 0 \u003e /sys/devices/system/cpu/cpu1/online\n# echo 1 \u003e /sys/devices/system/cpu/cpu1/online\n-----------------------------------\n\nThere is only CPU0 in cpuset.cpus, but the task in this cpuset runs on\nboth CPU0 and CPU1.\n\nIt is because the task\u0027s cpu_allowed didn\u0027t get updated after we did CPU\noffline/online manipulation. Similar for mem_allowed.\n\nThis patch fixes this bug expect for root cpuset. Because there is a\nproblem about root cpuset, in that whether it is necessary to update all\nthe tasks in root cpuset or not after cpu/node offline/online.\n\nIf updating, some kernel threads which is bound into a specified cpu will\nbe unbound.\n\nIf not updating, there is a bug in root cpuset. This bug is also caused\nby offline/online manipulation. For example, there is a dual-cpu machine.\n we create a sub cpuset in root cpuset and assign 1 to its cpus. And then\nwe attach some tasks into this sub cpuset. After this, we offline CPU1.\nNow, the tasks in this new cpuset are moved into root cpuset automatically\nbecause there is no cpu in sub cpuset. Then we online CPU1, we find all\nthe tasks which doesn\u0027t belong to root cpuset originally just run on CPU0.\n\nMaybe we need to add a flag in the task_struct to mark which task can\u0027t be\nunbound?\n\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0b2f630a28d53b5a2082a5275bc3334b10373508", "tree": "24f7aa54cedcf941b89f59c964873f3034e76b23", "parents": [ "628f42355389cfb596ca3a5a5f64fb9054a2a06a" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Fri Jul 25 01:47:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cpusets: restructure the function update_cpumask() and update_nodemask()\n\nExtract two functions from update_cpumask() and update_nodemask().They\nwill be used later for updating tasks\u0027 cpus_allowed and mems_allowed after\nCPU/NODE offline/online.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e885dcde75685e09f23cffae1f6d5169c105b8a0", "tree": "711a91e83fad632c194700839d3e47631aee677a", "parents": [ "856c13aa1ff6136c1968414fdea5938ea9d5ebf2" ], "author": { "name": "Serge E. Hallyn", "email": "serue@us.ibm.com", "time": "Fri Jul 25 01:47:06 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:37 2008 -0700" }, "message": "cgroup_clone: use pid of newly created task for new cgroup\n\ncgroup_clone creates a new cgroup with the pid of the task. This works\ncorrectly for unshare, but for clone cgroup_clone is called from\ncopy_namespaces inside copy_process, which happens before the new pid is\ncreated. As a result, the new cgroup was created with current\u0027s pid.\nThis patch:\n\n\t1. Moves the call inside copy_process to after the new pid\n\t is created\n\t2. Passes the struct pid into ns_cgroup_clone (as it is not\n\t yet attached to the task)\n\t3. Passes a name from ns_cgroup_clone() into cgroup_clone()\n\t so as to keep cgroup_clone() itself simpler\n\t4. Uses pid_vnr() to get the process id value, so that the\n\t pid used to name the new cgroup is always the pid as it\n\t would be known to the task which did the cloning or\n\t unsharing. I think that is the most intuitive thing to\n\t do. This way, task t1 does clone(CLONE_NEWPID) to get\n\t t2, which does clone(CLONE_NEWPID) to get t3, then the\n\t cgroup for t3 will be named for the pid by which t2 knows\n\t t3.\n\n(Thanks to Dan Smith for finding the main bug)\n\nChangelog:\n\tJune 11: Incorporate Paul Menage\u0027s feedback: don\u0027t pass\n\t NULL to ns_cgroup_clone from unshare, and reduce\n\t\t patch size by using \u0027nodename\u0027 in cgroup_clone.\n\tJune 10: Original version\n\n[akpm@linux-foundation.org: build fix]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Serge Hallyn \u003cserge@us.ibm.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nTested-by: Dan Smith \u003cdanms@us.ibm.com\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "856c13aa1ff6136c1968414fdea5938ea9d5ebf2", "tree": "deee908f253c77cbcb868a915e45bfb2ed99383c", "parents": [ "f92523e3a7861f5dbd76021e0719a35fe8771f2d" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: convert res_counter_write() to be a cgroups write_string() handler\n\nCurrently res_counter_write() is a raw file handler even though it\u0027s\nultimately taking a number, since in some cases it wants to\npre-process the string when converting it to a number.\n\nThis patch converts res_counter_write() from a raw file handler to a\nwrite_string() handler; this allows some of the boilerplate\ncopying/locking/checking to be removed, and simplies the cleanup path,\nsince these functions are now performed by the cgroups framework.\n\n[lizf@cn.fujitsu.com: build fix]\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e37123953292146445c8629b3950d0513fd10ae2", "tree": "8481ef1898a61cb5438205df349e01c432a1d55b", "parents": [ "af351026aafc8da16518a02b41c66d3e0c1cdef4" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:02 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: remove cpuset_common_file_write()\n\nThis patch tweaks the signatures of the update_cpumask() and\nupdate_nodemask() functions so that they can be called directly as\nhandlers for the new cgroups write_string() method.\n\nThis allows cpuset_common_file_write() to be removed.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "af351026aafc8da16518a02b41c66d3e0c1cdef4", "tree": "f294376157f2e1c91f5a4b6ff90b4183dc6f7969", "parents": [ "6379c106152388f7ea45d6dda63edda0e9181fc8" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: turn attach_task_by_pid directly into a cgroup write handler\n\nThis patch changes attach_task_by_pid() to take a u64 rather than a\nstring; as a result it can be called directly as a control groups\nwrite_u64 handler, and cgroup_common_file_write() can be removed.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "6379c106152388f7ea45d6dda63edda0e9181fc8", "tree": "ad38aad4eb0f2b4431ff15ec85c3e3aea99f7207", "parents": [ "84eea842886ac35020be6043e04748ed22014359" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:36 2008 -0700" }, "message": "cgroup files: move notify_on_release file to separate write handler\n\nThis patch moves the write handler for the cgroups notify_on_release\nfile into a separate handler. This handler requires no cgroups locking\nsince it relies on atomic bitops for synchronization.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nCc: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "84eea842886ac35020be6043e04748ed22014359", "tree": "acd2bb7c3bc267a032b5e637c598708f38c68cb3", "parents": [ "e788e066c651b1bbf4a927dc95395c1aa13be436" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:47:00 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: misc cleanups to write_string patchset\n\nThis patch contains cleanups suggested by reviewers for the recent\nwrite_string() patchset:\n\n- pair cgroup_lock_live_group() with cgroup_unlock() in cgroup.c for\n clarity, rather than directly unlocking cgroup_mutex.\n\n- make the return type of cgroup_lock_live_group() a bool\n\n- use a #define\u0027d constant for the local buffer size in read/write functions\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e788e066c651b1bbf4a927dc95395c1aa13be436", "tree": "8ffb80dc5917ba5b77e17ab2b71afcea3aadfef8", "parents": [ "db3b14978abc02041046ed8353f0899cb58ffffc" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:59 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: move the release_agent file to use typed handlers\n\nAdds cgroup_release_agent_write() and cgroup_release_agent_show()\nmethods to handle writing/reading the path to a cgroup hierarchy\u0027s\nrelease agent. As a result, cgroup_common_file_read() is now unnecessary.\n\nAs part of the change, a previously-tolerated race in\ncgroup_release_agent() is avoided by copying the current\nrelease_agent_path prior to calling call_usermode_helper().\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nCc: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "db3b14978abc02041046ed8353f0899cb58ffffc", "tree": "355ba027c6354bd13bcbb5318e8478b3de4599e9", "parents": [ "ce16b49d37e748574f7fabc2726268d542d0aa1a" ], "author": { "name": "Paul Menage", "email": "menage@google.com", "time": "Fri Jul 25 01:46:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup files: add write_string cgroup control file method\n\nThis patch adds a write_string() method for cgroups control files. The\nsemantics are that a buffer is copied from userspace to kernelspace\nand the handler function invoked on that buffer. The buffer is\nguaranteed to be nul-terminated, and no longer than max_write_len\n(defaulting to 64 bytes if unspecified). Later patches will convert\nexisting raw file write handlers in control group subsystems to use\nthis method.\n\nSigned-off-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nAcked-by: Balbir Singh \u003cbalbir@in.ibm.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8947f9d5b361ce927be6d5c11fed57905b7a4100", "tree": "f4a7d212cfef8889a60022c8ff3c9cfcf97962c2", "parents": [ "71cbb949d17d4d776abd547135feb7f3282405c8" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:56 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroups: annotate two variables with __read_mostly\n\n- need_forkexit_callback will be read only after system boot.\n- use_task_css_set_links will be read only after it\u0027s set.\n\nAnd these 2 variables are checked when a new process is forked.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "71cbb949d17d4d776abd547135feb7f3282405c8", "tree": "decd47a6cb05a36bb8a2f224b50bd12a8acc862e", "parents": [ "f2992db2a4f7ae10f61d5bc68c7c1528cec639e2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Fri Jul 25 01:46:55 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup: list_for_each cleanup\n\n--------------------------\nwhile() {\n\tlist_entry();\n\t...\n}\n--------------------------\n\nis equivalent to following code.\n\n--------------------------\nlist_for_each_entry(){\n\t...\n}\n--------------------------\n\nlater can review easily more.\n\nthis patch is just clean up.\nit doesn\u0027t have any behavor change.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7e9abd89cbdf9b73d327d8173343abce9022609b", "tree": "7e738e46ba5e384fc6bc984196ed2d09a0ea8102", "parents": [ "9d96d82da437ed5f2053821779ed5d7797ed1f81" ], "author": { "name": "Li Zefan", "email": "lizf@cn.fujitsu.com", "time": "Fri Jul 25 01:46:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:35 2008 -0700" }, "message": "cgroup: use read lock to guard find_existing_css_set()\n\nThe function does not modify anything (except the temporary css template), so\nit\u0027s sufficient to hold read lock.\n\nSigned-off-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Paul Menage \u003cmenage@google.com\u003e\nCc: Balbir Singh \u003cbalbir@linux.vnet.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": "8b6dd986823a8d92ed9f54baa5cef8604d9d9d44", "tree": "42aa64ad046b200c4a04491eb3c72ac2f7ffde0e", "parents": [ "ef53d9c5e4da147ecaa43c44c5e5945eb83970a2" ], "author": { "name": "Abhishek Sagar", "email": "sagar.abhishek@gmail.com", "time": "Fri Jul 25 01:46:05 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "kprobes: remove redundant config check\n\nI noticed that there\u0027s a CONFIG_KPROBES check inside kernel/kprobes.c,\nwhich is redundant.\n\nSigned-off-by: Abhishek Sagar \u003csagar.abhishek@gmail.com\u003e\nAcked-by: Masami Hiramatsu \u003cmhiramat@redhat.com\u003e\nCc: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ef53d9c5e4da147ecaa43c44c5e5945eb83970a2", "tree": "3b596445e5d0613fda4b33a4ae96e0e3fffdcf1e", "parents": [ "53a9600c634e3bfd6230e0597aca159bf4d4d010" ], "author": { "name": "Srinivasa D S", "email": "srinivasa@in.ibm.com", "time": "Fri Jul 25 01:46:04 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:30 2008 -0700" }, "message": "kprobes: improve kretprobe scalability with hashed locking\n\nCurrently list of kretprobe instances are stored in kretprobe object (as\nused_instances,free_instances) and in kretprobe hash table. We have one\nglobal kretprobe lock to serialise the access to these lists. This causes\nonly one kretprobe handler to execute at a time. Hence affects system\nperformance, particularly on SMP systems and when return probe is set on\nlot of functions (like on all systemcalls).\n\nSolution proposed here gives fine-grain locks that performs better on SMP\nsystem compared to present kretprobe implementation.\n\nSolution:\n\n 1) Instead of having one global lock to protect kretprobe instances\n present in kretprobe object and kretprobe hash table. We will have\n two locks, one lock for protecting kretprobe hash table and another\n lock for kretporbe object.\n\n 2) We hold lock present in kretprobe object while we modify kretprobe\n instance in kretprobe object and we hold per-hash-list lock while\n modifying kretprobe instances present in that hash list. To prevent\n deadlock, we never grab a per-hash-list lock while holding a kretprobe\n lock.\n\n 3) We can remove used_instances from struct kretprobe, as we can\n track used instances of kretprobe instances using kretprobe hash\n table.\n\nTime duration for kernel compilation (\"make -j 8\") on a 8-way ppc64 system\nwith return probes set on all systemcalls looks like this.\n\ncacheline non-cacheline Un-patched kernel\naligned patch \t aligned patch\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nreal 9m46.784s 9m54.412s 10m2.450s\nuser 40m5.715s 40m7.142s 40m4.273s\nsys 2m57.754s 2m58.583s 3m17.430s\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nTime duration for kernel compilation (\"make -j 8) on the same system, when\nkernel is not probed.\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nreal 9m26.389s\nuser 40m8.775s\nsys 2m7.283s\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nSigned-off-by: Srinivasa DS \u003csrinivasa@in.ibm.com\u003e\nSigned-off-by: Jim Keniston \u003cjkenisto@us.ibm.com\u003e\nAcked-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nCc: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nCc: David S. Miller \u003cdavem@davemloft.net\u003e\nCc: Masami Hiramatsu \u003cmhiramat@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": "717115e1a5856b57af0f71e1df7149108294fc10", "tree": "9528a992245c2fb993a0cf0bc8221dc7dea5d259", "parents": [ "2711b793eb62a5873a0ba583a69252040aef176e" ], "author": { "name": "Dave Young", "email": "hidave.darkstar@gmail.com", "time": "Fri Jul 25 01:45:58 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:29 2008 -0700" }, "message": "printk ratelimiting rewrite\n\nAll ratelimit user use same jiffies and burst params, so some messages\n(callbacks) will be lost.\n\nFor example:\na call printk_ratelimit(5 * HZ, 1)\nb call printk_ratelimit(5 * HZ, 1) before the 5*HZ timeout of a, then b will\nwill be supressed.\n\n- rewrite __ratelimit, and use a ratelimit_state as parameter. Thanks for\n hints from andrew.\n\n- Add WARN_ON_RATELIMIT, update rcupreempt.h\n\n- remove __printk_ratelimit\n\n- use __ratelimit in net_ratelimit\n\nSigned-off-by: Dave Young \u003chidave.darkstar@gmail.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Dave Young \u003chidave.darkstar@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7a2c477069fbd32f91598f05334003979b987a39", "tree": "fe4ac84819050159a45752ad4c03b2abc971ad06", "parents": [ "a8f18b909c0a3f22630846207035c8b84bb252b8" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jul 25 01:45:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:29 2008 -0700" }, "message": "kernel/irq/manage.c: replace a printk + WARN_ON() to a WARN()\n\nReplace a printk+WARN_ON() by a WARN(); this increases the chance of the\nstring making it into the bugreport (ie: it goes inside the\n---[ cut here ]--- section)\n\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a8f18b909c0a3f22630846207035c8b84bb252b8", "tree": "72a2dee787b9d077cc24f5cf7392b071401506ec", "parents": [ "b6c63937001889af6fe431aaba97e59d04e028e7" ], "author": { "name": "Arjan van de Ven", "email": "arjan@linux.intel.com", "time": "Fri Jul 25 01:45:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:29 2008 -0700" }, "message": "Add a WARN() macro; this is WARN_ON() + printk arguments\n\nAdd a WARN() macro that acts like WARN_ON(), with the added feature that it\ntakes a printk like argument that is printed as part of the warning message.\n\n[akpm@linux-foundation.org: fix printk arguments]\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b69c49b78457f681ecfb3147bd968434ee6559c1", "tree": "9557c950c21cf4336ccc403136ea11384150af31", "parents": [ "62ec30d45ecbb85b5991474c8f04192697687495" ], "author": { "name": "FUJITA Tomonori", "email": "fujita.tomonori@lab.ntt.co.jp", "time": "Fri Jul 25 01:45:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:28 2008 -0700" }, "message": "clean up duplicated alloc/free_thread_info\n\nWe duplicate alloc/free_thread_info defines on many platforms (the\nmajority uses __get_free_pages/free_pages). This patch defines common\ndefines and removes these duplicated defines.\n__HAVE_ARCH_THREAD_INFO_ALLOCATOR is introduced for platforms that do\nsomething different.\n\nSigned-off-by: FUJITA Tomonori \u003cfujita.tomonori@lab.ntt.co.jp\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ac331d158e198d2a91a5b0a3ec4ca9991fdb57af", "tree": "b0921e2bc8e59d5df2c554c41c3b9f04e05d6d7c", "parents": [ "f557d0996a6f9c06912528ea85e1dba0fb7d485f" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Fri Jul 25 01:45:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:28 2008 -0700" }, "message": "call_usermodehelper(): increase reliability\n\nPresently call_usermodehelper_setup() uses GFP_ATOMIC. but it can return\nNULL _very_ easily.\n\nGFP_ATOMIC is needed only when we can\u0027t sleep. and, GFP_KERNEL is robust\nand better.\n\nthus, I add gfp_mask argument to call_usermodehelper_setup().\n\nSo, its callers pass the gfp_t as below:\n\ncall_usermodehelper() and call_usermodehelper_keys():\n\tdepend on \u0027wait\u0027 argument.\ncall_usermodehelper_pipe():\n\talways GFP_KERNEL because always run under process context.\norderly_poweroff():\n\tpass to GFP_ATOMIC because may run under interrupt context.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: \"Paul Menage\" \u003cmenage@google.com\u003e\nReviewed-by: Li Zefan \u003clizf@cn.fujitsu.com\u003e\nAcked-by: Jeremy Fitzhardinge \u003cjeremy@xensource.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Andi Kleen \u003candi@firstfloor.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b03f6489f9f27dc519a4c60ebf39cc7b8a58eae7", "tree": "6329fc91e860f2949d737c611aa846eb2d653103", "parents": [ "696adfe84c11c571a1e0863460ff0ec142b4e5a9" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Fri Jul 25 01:45:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:27 2008 -0700" }, "message": "build kernel/profile.o only when requested\n\nBuild kernel/profile.o only if CONFIG_PROFILING is enabled.\n\nThis makes CONFIG_PROFILING\u003dn kernels smaller.\n\nAs a bonus, some profile_tick() calls and one branch from schedule() are\nnow eliminated with CONFIG_PROFILING\u003dn (but I doubt these are\nmeasurable effects).\n\nThis patch changes the effects of CONFIG_PROFILING\u003dn, but I don\u0027t think\nhaving more than two choices would be the better choice.\n\nThis patch also adds the name of the first parameter to the prototypes\nof profile_{hits,tick}() since I anyway had to add them for the dummy\nfunctions.\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2fc9c4e18f94431e7eb77d97edb2a995b46fba55", "tree": "4d5f003ab52c9e50774c856a5cc2e53699b0b21e", "parents": [ "58340a07c194e0aed7bc58b61ff24330bb2a409f" ], "author": { "name": "Vegard Nossum", "email": "vegard.nossum@gmail.com", "time": "Fri Jul 25 01:45:34 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:27 2008 -0700" }, "message": "kallsyms: fix potential overflow in binary search\n\nThis will probably never trigger... but it won\u0027t hurt to be careful.\n\nhttp://googleresearch.blogspot.com/2006/06/extra-extra-read-all-about-it-nearly.html\n\nSigned-off-by: Vegard Nossum \u003cvegard.nossum@gmail.com\u003e\nCc: Joshua Bloch \u003cjjb@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5df439ef06d4173357711a04740aa8bfcf50d621", "tree": "79c3ff05b59600efb5a24c1f15070075ab16f47b", "parents": [ "c82dd5321cf779f1f536ef26b383cbe8c9de7f10" ], "author": { "name": "Wang Chen", "email": "wangchen@cn.fujitsu.com", "time": "Fri Jul 25 01:45:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jul 25 10:53:26 2008 -0700" }, "message": "flag parameters: fix compile error of sys_epoll_create1\n\nGEN .version\n CHK include/linux/compile.h\n UPD include/linux/compile.h\n CC init/version.o\n LD init/built-in.o\n LD vmlinux\narch/x86/kernel/built-in.o: In function `sys_call_table\u0027:\n(.rodata+0x8a4): undefined reference to `sys_epoll_create1\u0027\nmake: *** [vmlinux] Error 1\n\nSigned-off-by: Wang Chen \u003cwangchen@cn.fujitsu.com\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ecc8b655b38a880b578146895e0e1e2d477ca2c0", "tree": "4acce96bac00909fa9472f0c0669714243ea5bee", "parents": [ "2528ce3237be4e900f5eaa455490146e1422e424", "e338125b8a886923ba8367207c144764dc352584" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:55:01 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:55:01 2008 -0700" }, "message": "Merge branch \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027timers-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n nohz: adjust tick_nohz_stop_sched_tick() call of s390 as well\n nohz: prevent tick stop outside of the idle loop\n" }, { "commit": "2528ce3237be4e900f5eaa455490146e1422e424", "tree": "0be844679c06c7da121527189770f9737dfcc6c2", "parents": [ "8ffa5b65968262ba6bb046329972791c0d960745", "36bd53d07243ae83c1b73bae549086cea2252854" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:54:26 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:54:26 2008 -0700" }, "message": "Merge branch \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n arch/mips/kernel/stacktrace.c: Heiko can\u0027t type\n kthread: reduce stack pressure in create_kthread and kthreadd\n fix core/stacktrace changes on avr32, mips, sh\n" }, { "commit": "8ffa5b65968262ba6bb046329972791c0d960745", "tree": "3ed3e019e812ab39f7836f0082825b9d11630856", "parents": [ "6209ed9d8443b63c36d340908530fa470c4d4fff", "58838cf3ca3337d76141c33d6c68376490263468" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:53:51 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 12:53:51 2008 -0700" }, "message": "Merge branch \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched-fixes-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: clean up compiler warning\n sched: fix hrtick \u0026 generic-ipi dependency\n" }, { "commit": "be61a86d7237dd80510615f38ae21d6e1e98660c", "tree": "3dfe6c8275c724533f88525970a4065ae795f6e3", "parents": [ "6b1ef0e60d42f2fdaec26baee8327eb156347b4f" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:29 2008 -0700" }, "message": "flag parameters: NONBLOCK in pipe\n\nThis patch adds O_NONBLOCK support to pipe2. It is minimally more involved\nthan the patches for eventfd et.al but still trivial. The interfaces of the\ncreate_write_pipe and create_read_pipe helper functions were changed and the\none other caller as well.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_pipe2\n# ifdef __x86_64__\n# define __NR_pipe2 293\n# elif defined __i386__\n# define __NR_pipe2 331\n# else\n# error \"need __NR_pipe2\"\n# endif\n#endif\n\nint\nmain (void)\n{\n int fds[2];\n if (syscall (__NR_pipe2, fds, 0) \u003d\u003d -1)\n {\n puts (\"pipe2(0) failed\");\n return 1;\n }\n for (int i \u003d 0; i \u003c 2; ++i)\n {\n int fl \u003d fcntl (fds[i], F_GETFL);\n if (fl \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (fl \u0026 O_NONBLOCK)\n {\n printf (\"pipe2(0) set non-blocking mode for fds[%d]\\n\", i);\n return 1;\n }\n close (fds[i]);\n }\n\n if (syscall (__NR_pipe2, fds, O_NONBLOCK) \u003d\u003d -1)\n {\n puts (\"pipe2(O_NONBLOCK) failed\");\n return 1;\n }\n for (int i \u003d 0; i \u003c 2; ++i)\n {\n int fl \u003d fcntl (fds[i], F_GETFL);\n if (fl \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((fl \u0026 O_NONBLOCK) \u003d\u003d 0)\n {\n printf (\"pipe2(O_NONBLOCK) does not set non-blocking mode for fds[%d]\\n\", i);\n return 1;\n }\n close (fds[i]);\n }\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4006553b06306b34054529477b06b68a1c66249b", "tree": "d4ebbe4a5294b0cec69fe4908b7b7c569f4ece03", "parents": [ "ed8cae8ba01348bfd83333f4648dd807b04d7f08" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:28 2008 -0700" }, "message": "flag parameters: inotify_init\n\nThis patch introduces the new syscall inotify_init1 (note: the 1 stands for\nthe one parameter the syscall takes, as opposed to no parameter before). The\nvalues accepted for this parameter are function-specific and defined in the\ninotify.h header. Here the values must match the O_* flags, though. In this\npatch CLOEXEC support is introduced.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_inotify_init1\n# ifdef __x86_64__\n# define __NR_inotify_init1 294\n# elif defined __i386__\n# define __NR_inotify_init1 332\n# else\n# error \"need __NR_inotify_init1\"\n# endif\n#endif\n\n#define IN_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n int fd;\n fd \u003d syscall (__NR_inotify_init1, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"inotify_init1(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"inotify_init1(0) set close-on-exit\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_inotify_init1, IN_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"inotify_init1(IN_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"inotify_init1(O_CLOEXEC) does not set close-on-exit\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b087498eb5605673b0f260a7620d91818cd72304", "tree": "977d9dbcd326a9582dfc5ad000995d26886c872e", "parents": [ "9deb27baedb79759c3ab9435a7d8b841842d56e9" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:27 2008 -0700" }, "message": "flag parameters: eventfd\n\nThis patch adds the new eventfd2 syscall. It extends the old eventfd\nsyscall by one parameter which is meant to hold a flag value. In this\npatch the only flag support is EFD_CLOEXEC which causes the close-on-exec\nflag for the returned file descriptor to be set.\n\nA new name EFD_CLOEXEC is introduced which in this implementation must\nhave the same value as O_CLOEXEC.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_eventfd2\n# ifdef __x86_64__\n# define __NR_eventfd2 290\n# elif defined __i386__\n# define __NR_eventfd2 328\n# else\n# error \"need __NR_eventfd2\"\n# endif\n#endif\n\n#define EFD_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n int fd \u003d syscall (__NR_eventfd2, 1, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"eventfd2(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"eventfd2(0) sets close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_eventfd2, 1, EFD_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"eventfd2(EFD_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"eventfd2(EFD_CLOEXEC) does not set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9deb27baedb79759c3ab9435a7d8b841842d56e9", "tree": "1c88393ba30db851ca0bb93c4e656d4e5dbb22b9", "parents": [ "7d9dbca34240ebb6ff88d8a29c6c7bffd098f0c1" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:24 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:27 2008 -0700" }, "message": "flag parameters: signalfd\n\nThis patch adds the new signalfd4 syscall. It extends the old signalfd\nsyscall by one parameter which is meant to hold a flag value. In this\npatch the only flag support is SFD_CLOEXEC which causes the close-on-exec\nflag for the returned file descriptor to be set.\n\nA new name SFD_CLOEXEC is introduced which in this implementation must\nhave the same value as O_CLOEXEC.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cfcntl.h\u003e\n#include \u003csignal.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_signalfd4\n# ifdef __x86_64__\n# define __NR_signalfd4 289\n# elif defined __i386__\n# define __NR_signalfd4 327\n# else\n# error \"need __NR_signalfd4\"\n# endif\n#endif\n\n#define SFD_CLOEXEC O_CLOEXEC\n\nint\nmain (void)\n{\n sigset_t ss;\n sigemptyset (\u0026ss);\n sigaddset (\u0026ss, SIGUSR1);\n int fd \u003d syscall (__NR_signalfd4, -1, \u0026ss, 8, 0);\n if (fd \u003d\u003d -1)\n {\n puts (\"signalfd4(0) failed\");\n return 1;\n }\n int coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"signalfd4(0) set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n fd \u003d syscall (__NR_signalfd4, -1, \u0026ss, 8, SFD_CLOEXEC);\n if (fd \u003d\u003d -1)\n {\n puts (\"signalfd4(SFD_CLOEXEC) failed\");\n return 1;\n }\n coe \u003d fcntl (fd, F_GETFD);\n if (coe \u003d\u003d -1)\n {\n puts (\"fcntl failed\");\n return 1;\n }\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"signalfd4(SFD_CLOEXEC) does not set close-on-exec flag\");\n return 1;\n }\n close (fd);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aaca0bdca573f3f51ea03139f9c7289541e7bca3", "tree": "d25b0baa73b5301d91a5c848a896bad0fb719acc", "parents": [ "a677a039be7243357d93502bff2b40850c942e2d" ], "author": { "name": "Ulrich Drepper", "email": "drepper@redhat.com", "time": "Wed Jul 23 21:29:20 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:27 2008 -0700" }, "message": "flag parameters: paccept\n\nThis patch is by far the most complex in the series. It adds a new syscall\npaccept. This syscall differs from accept in that it adds (at the userlevel)\ntwo additional parameters:\n\n- a signal mask\n- a flags value\n\nThe flags parameter can be used to set flag like SOCK_CLOEXEC. This is\nimlpemented here as well. Some people argued that this is a property which\nshould be inherited from the file desriptor for the server but this is against\nPOSIX. Additionally, we really want the signal mask parameter as well\n(similar to pselect, ppoll, etc). So an interface change in inevitable.\n\nThe flag value is the same as for socket and socketpair. I think diverging\nhere will only create confusion. Similar to the filesystem interfaces where\nthe use of the O_* constants differs, it is acceptable here.\n\nThe signal mask is handled as for pselect etc. The mask is temporarily\ninstalled for the thread and removed before the call returns. I modeled the\ncode after pselect. If there is a problem it\u0027s likely also in pselect.\n\nFor architectures which use socketcall I maintained this interface instead of\nadding a system call. The symmetry shouldn\u0027t be broken.\n\nThe following test must be adjusted for architectures other than x86 and\nx86-64 and in case the syscall numbers changed.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n#include \u003cerrno.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cpthread.h\u003e\n#include \u003csignal.h\u003e\n#include \u003cstdio.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003cnetinet/in.h\u003e\n#include \u003csys/socket.h\u003e\n#include \u003csys/syscall.h\u003e\n\n#ifndef __NR_paccept\n# ifdef __x86_64__\n# define __NR_paccept 288\n# elif defined __i386__\n# define SYS_PACCEPT 18\n# define USE_SOCKETCALL 1\n# else\n# error \"need __NR_paccept\"\n# endif\n#endif\n\n#ifdef USE_SOCKETCALL\n# define paccept(fd, addr, addrlen, mask, flags) \\\n ({ long args[6] \u003d { \\\n (long) fd, (long) addr, (long) addrlen, (long) mask, 8, (long) flags }; \\\n syscall (__NR_socketcall, SYS_PACCEPT, args); })\n#else\n# define paccept(fd, addr, addrlen, mask, flags) \\\n syscall (__NR_paccept, fd, addr, addrlen, mask, 8, flags)\n#endif\n\n#define PORT 57392\n\n#define SOCK_CLOEXEC O_CLOEXEC\n\nstatic pthread_barrier_t b;\n\nstatic void *\ntf (void *arg)\n{\n pthread_barrier_wait (\u0026b);\n int s \u003d socket (AF_INET, SOCK_STREAM, 0);\n struct sockaddr_in sin;\n sin.sin_family \u003d AF_INET;\n sin.sin_addr.s_addr \u003d htonl (INADDR_LOOPBACK);\n sin.sin_port \u003d htons (PORT);\n connect (s, (const struct sockaddr *) \u0026sin, sizeof (sin));\n close (s);\n\n pthread_barrier_wait (\u0026b);\n s \u003d socket (AF_INET, SOCK_STREAM, 0);\n sin.sin_port \u003d htons (PORT);\n connect (s, (const struct sockaddr *) \u0026sin, sizeof (sin));\n close (s);\n pthread_barrier_wait (\u0026b);\n\n pthread_barrier_wait (\u0026b);\n sleep (2);\n pthread_kill ((pthread_t) arg, SIGUSR1);\n\n return NULL;\n}\n\nstatic void\nhandler (int s)\n{\n}\n\nint\nmain (void)\n{\n pthread_barrier_init (\u0026b, NULL, 2);\n\n struct sockaddr_in sin;\n pthread_t th;\n if (pthread_create (\u0026th, NULL, tf, (void *) pthread_self ()) !\u003d 0)\n {\n puts (\"pthread_create failed\");\n return 1;\n }\n\n int s \u003d socket (AF_INET, SOCK_STREAM, 0);\n int reuse \u003d 1;\n setsockopt (s, SOL_SOCKET, SO_REUSEADDR, \u0026reuse, sizeof (reuse));\n sin.sin_family \u003d AF_INET;\n sin.sin_addr.s_addr \u003d htonl (INADDR_LOOPBACK);\n sin.sin_port \u003d htons (PORT);\n bind (s, (struct sockaddr *) \u0026sin, sizeof (sin));\n listen (s, SOMAXCONN);\n\n pthread_barrier_wait (\u0026b);\n\n int s2 \u003d paccept (s, NULL, 0, NULL, 0);\n if (s2 \u003c 0)\n {\n puts (\"paccept(0) failed\");\n return 1;\n }\n\n int coe \u003d fcntl (s2, F_GETFD);\n if (coe \u0026 FD_CLOEXEC)\n {\n puts (\"paccept(0) set close-on-exec-flag\");\n return 1;\n }\n close (s2);\n\n pthread_barrier_wait (\u0026b);\n\n s2 \u003d paccept (s, NULL, 0, NULL, SOCK_CLOEXEC);\n if (s2 \u003c 0)\n {\n puts (\"paccept(SOCK_CLOEXEC) failed\");\n return 1;\n }\n\n coe \u003d fcntl (s2, F_GETFD);\n if ((coe \u0026 FD_CLOEXEC) \u003d\u003d 0)\n {\n puts (\"paccept(SOCK_CLOEXEC) does not set close-on-exec flag\");\n return 1;\n }\n close (s2);\n\n pthread_barrier_wait (\u0026b);\n\n struct sigaction sa;\n sa.sa_handler \u003d handler;\n sa.sa_flags \u003d 0;\n sigemptyset (\u0026sa.sa_mask);\n sigaction (SIGUSR1, \u0026sa, NULL);\n\n sigset_t ss;\n pthread_sigmask (SIG_SETMASK, NULL, \u0026ss);\n sigaddset (\u0026ss, SIGUSR1);\n pthread_sigmask (SIG_SETMASK, \u0026ss, NULL);\n\n sigdelset (\u0026ss, SIGUSR1);\n alarm (4);\n pthread_barrier_wait (\u0026b);\n\n errno \u003d 0 ;\n s2 \u003d paccept (s, NULL, 0, \u0026ss, 0);\n if (s2 !\u003d -1 || errno !\u003d EINTR)\n {\n puts (\"paccept did not fail with EINTR\");\n return 1;\n }\n\n close (s);\n\n puts (\"OK\");\n\n return 0;\n}\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n[akpm@linux-foundation.org: make it compile]\n[akpm@linux-foundation.org: add sys_ni stub]\nSigned-off-by: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nAcked-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Michael Kerrisk \u003cmtk.manpages@googlemail.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "82736f4d1d2b7063b829cc93171a6e5aea8a9c49", "tree": "3e0e7bf57638dcb1321496440a11623beb005458", "parents": [ "f606ddf42fd4edc558eeb48bfee66d2c591571d2" ], "author": { "name": "Uwe Kleine-König", "email": "Uwe.Kleine-Koenig@digi.com", "time": "Wed Jul 23 21:28:54 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:24 2008 -0700" }, "message": "generic irqs: handle failure of irqchip-\u003eset_type in setup_irq\n\nset_type returns an int indicating success or failure, but up to now\nsetup_irq ignores that.\n\nIn my case this resulted in a machine hang:\n\ngpio-keys requested IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, but\narm/ns9xxx can only trigger on one direction so set_type didn\u0027t touch\nthe configuration which happens do default to a level sensitiveness and\nreturned -EINVAL. setup_irq ignored that and unmasked the irq. This\nresulted in an endless triggering of the gpio-key interrupt service\nroutine which effectively killed the machine.\n\nWith this patch applied setup_irq propagates the error to the caller.\n\nNote that before in the case\n\n\tchip \u0026\u0026 !chip-\u003eset_type \u0026\u0026 !chip-\u003ename\n\na NULL pointer was feed to printk. This is fixed, too.\n\nSigned-off-by: Uwe Kleine-König \u003cUwe.Kleine-Koenig@digi.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f0af566da6e9a4a2f5a83c5a70f3d0a772050e21", "tree": "4f7a4819abfde03938bb95c525ed652bcfe40a52", "parents": [ "e41fb7c58e3ca18ec5c9c9bb7bb68e8e653c9e8e" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Jul 23 21:28:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:24 2008 -0700" }, "message": "pm: fix try_to_freeze_tasks()\u0027s use of do_div()\n\nFix try_to_freeze_tasks()\u0027s use of do_div() on an s64 by making\nelapsed_csecs64 a u64 instead and dividing that.\n\nPossibly this should be guarded lest the interval calculation turn up\nnegative, but the possible negativity of the result of the division is\ncast away anyway.\n\nThis was introduced by patch 438e2ce68dfd4af4cfcec2f873564fb921db4bb5.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2f15fc4bdf91eb399da3f47a09c55831d9f22826", "tree": "4db94b5313a526d8a4fad64cd534021a86bc8a63", "parents": [ "c1a220e7acf8ad2c03504891f4a70cd9c32c904b" ], "author": { "name": "Zhang Rui", "email": "rui.zhang@intel.com", "time": "Wed Jul 23 21:28:40 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:24 2008 -0700" }, "message": "pm: schedule sysrq poweroff on boot cpu\n\nschedule sysrq poweroff on boot cpu.\n\nsysrq poweroff needs to disable nonboot cpus, and we need to run this on boot\ncpu to avoid any recursion. http://bugzilla.kernel.org/show_bug.cgi?id\u003d10897\n\n[kosaki.motohiro@jp.fujitsu.com: build fix]\nSigned-off-by: Zhang Rui \u003crui.zhang@intel.com\u003e\nTested-by: Rus \u003charbour@sfinx.od.ua\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c1a220e7acf8ad2c03504891f4a70cd9c32c904b", "tree": "902104a5a5debb5b881d7af4110ad1258ea5b0bd", "parents": [ "0d83304c7e7bd3b05be90281b3a47841bc8f057a" ], "author": { "name": "Zhang Rui", "email": "rui.zhang@intel.com", "time": "Wed Jul 23 21:28:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:23 2008 -0700" }, "message": "pm: introduce new interfaces schedule_work_on() and queue_work_on()\n\nThis interface allows adding a job on a specific cpu.\n\nAlthough a work struct on a cpu will be scheduled to other cpu if the cpu\ndies, there is a recursion if a work task tries to offline the cpu it\u0027s\nrunning on. we need to schedule the task to a specific cpu in this case.\nhttp://bugzilla.kernel.org/show_bug.cgi?id\u003d10897\n\n[oleg@tv-sign.ru: cleanups]\nSigned-off-by: Zhang Rui \u003crui.zhang@intel.com\u003e\nTested-by: Rus \u003charbour@sfinx.od.ua\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d83304c7e7bd3b05be90281b3a47841bc8f057a", "tree": "148e2dcfbbe385356af87629b59e71262adc68ce", "parents": [ "8111d1b552349921aae1acf73e4e8cea98e80970" ], "author": { "name": "Akinobu Mita", "email": "akinobu.mita@gmail.com", "time": "Wed Jul 23 21:28:38 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:23 2008 -0700" }, "message": "pm: hibernation: simplify memory bitmap\n\nThis patch simplifies the memory bitmap manipulations.\n\n- remove the member size in struct bm_block\n\nIt is not necessary for struct bm_block to have the number of bit chunks that\ncan be calculated by using end_pfn and start_pfn.\n\n- use find_next_bit() for memory_bm_next_pfn\n\nNo need to invent the bitmap library only for the memory bitmap.\n\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "77437fd4e61f87cc94d9314baa5cbf50e3ccdf54", "tree": "c458e2b5c55a53560ddbf0a3347cc8ca64974b45", "parents": [ "0d63081d418c73cc187c893069e0f24c4c6eecd3" ], "author": { "name": "David Brownell", "email": "dbrownell@users.sourceforge.net", "time": "Wed Jul 23 21:28:33 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:22 2008 -0700" }, "message": "pm: boot time suspend selftest\n\nBoot-time test for system suspend states (STR or standby). The generic\nRTC framework triggers wakeup alarms, which are used to exit those states.\n\n - Measures some aspects of suspend time ... this uses \"jiffies\" until\n someone converts it to use a timebase that works properly even while\n timer IRQs are disabled.\n\n - Triggered by a command line parameter. By default nothing even\n vaguely troublesome will happen, but \"test_suspend\u003dmem\" will give\n you a brief STR test during system boot. (Or you may need to use\n \"test_suspend\u003dstandby\" instead, if your hardware needs that.)\n\nThis isn\u0027t without problems. It fires early enough during boot that for\nexample both PCMCIA and MMC stacks have misbehaved. The workaround in\nthose cases was to boot without such media cards inserted.\n\n[matthltc@us.ibm.com: fix compile failure in boot time suspend selftest]\nSigned-off-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Pavel Machek \u003cpavel@suse.cz\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nSigned-off-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d63081d418c73cc187c893069e0f24c4c6eecd3", "tree": "2ee2d001d47dd38173820efbd915ed9120817575", "parents": [ "fb9ba4e95921f71d874beee2d0964fc2322b47a2" ], "author": { "name": "Pavel Machek", "email": "pavel@suse.cz", "time": "Wed Jul 23 21:28:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:22 2008 -0700" }, "message": "swsusp: provide users with a hint about the no_console_suspend option\n\nTell the user about the no_console_suspend option, so that we don\u0027t have to\ntell each bug reporter personally.\n\n[akpm@linux-foundation.org: clarify the text a little]\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nCc: \"Rafael J. Wysocki\" \u003crjw@sisk.pl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ab763c7112ce0e2559c73f921617c81dc7287ca6", "tree": "110f60462a54e869402346b5ae9cfaed012cf8f4", "parents": [ "5459c164f0591ee75ed0203bb8f3817f25948e2f" ], "author": { "name": "Andrew G. Morgan", "email": "morgan@kernel.org", "time": "Wed Jul 23 21:28:25 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:22 2008 -0700" }, "message": "security: filesystem capabilities refactor kernel code\n\nTo date, we\u0027ve tried hard to confine filesystem support for capabilities\nto the security modules. This has left a lot of the code in\nkernel/capability.c in a state where it looks like it supports something\nthat filesystem support for capabilities actually suppresses when the LSM\nsecurity/commmoncap.c code runs. What is left is a lot of code that uses\nsub-optimal locking in the main kernel\n\nWith this change we refactor the main kernel code and make it explicit\nwhich locks are needed and that the only remaining kernel races in this\narea are associated with non-filesystem capability code.\n\nSigned-off-by: Andrew G. Morgan \u003cmorgan@kernel.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e5ff215941d59f8ae6bf58f6428dc5c26745a612", "tree": "d8a3f730124d6608c6c880515625ca2d4e4ed044", "parents": [ "a5516438959d90b071ff0a484ce4f3f523dc3152" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Wed Jul 23 21:27:42 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:17 2008 -0700" }, "message": "hugetlb: multiple hstates for multiple page sizes\n\nAdd basic support for more than one hstate in hugetlbfs. This is the key\nto supporting multiple hugetlbfs page sizes at once.\n\n- Rather than a single hstate, we now have an array, with an iterator\n- default_hstate continues to be the struct hstate which we use by default\n- Add functions for architectures to register new hstates\n\n[akpm@linux-foundation.org: coding-style fixes]\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nAcked-by: Nishanth Aravamudan \u003cnacc@us.ibm.com\u003e\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a1e78772d72b2616ed20e54896e68e0e7044854e", "tree": "d752dd96c2a4fcc555779a7aa99f95069c9b95ae", "parents": [ "fc1b8a73dd71226902a11928dd5500326e101df9" ], "author": { "name": "Mel Gorman", "email": "mel@csn.ul.ie", "time": "Wed Jul 23 21:27:23 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:16 2008 -0700" }, "message": "hugetlb: reserve huge pages for reliable MAP_PRIVATE hugetlbfs mappings until fork()\n\nThis patch reserves huge pages at mmap() time for MAP_PRIVATE mappings in\na similar manner to the reservations taken for MAP_SHARED mappings. The\nreserve count is accounted both globally and on a per-VMA basis for\nprivate mappings. This guarantees that a process that successfully calls\nmmap() will successfully fault all pages in the future unless fork() is\ncalled.\n\nThe characteristics of private mappings of hugetlbfs files behaviour after\nthis patch are;\n\n1. The process calling mmap() is guaranteed to succeed all future faults until\n it forks().\n2. On fork(), the parent may die due to SIGKILL on writes to the private\n mapping if enough pages are not available for the COW. For reasonably\n reliable behaviour in the face of a small huge page pool, children of\n hugepage-aware processes should not reference the mappings; such as\n might occur when fork()ing to exec().\n3. On fork(), the child VMAs inherit no reserves. Reads on pages already\n faulted by the parent will succeed. Successful writes will depend on enough\n huge pages being free in the pool.\n4. Quotas of the hugetlbfs mount are checked at reserve time for the mapper\n and at fault time otherwise.\n\nBefore this patch, all reads or writes in the child potentially needs page\nallocations that can later lead to the death of the parent. This applies\nto reads and writes of uninstantiated pages as well as COW. After the\npatch it is only a write to an instantiated page that causes problems.\n\nSigned-off-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nAcked-by: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c748e1340e0de3fa7fed86f8bdf499be9242afff", "tree": "864d3133bb8c3f73615497ef1fc557fcf93e5f1b", "parents": [ "4f5ca265788973e3f5a1129a96ee4a9cbf587f2b" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Wed Jul 23 21:27:03 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jul 24 10:47:14 2008 -0700" }, "message": "mm/vmstat.c: proper externs\n\nThis patch adds proper extern declarations for five variables in\ninclude/linux/vmstat.h\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "58838cf3ca3337d76141c33d6c68376490263468", "tree": "0254542f073d3b2a4e4f1a05269d2d3f521bbcc3", "parents": [ "422037bafde8083acc3c539ceba3dfc60a04110c" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Jul 24 12:43:13 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Thu Jul 24 13:24:57 2008 +0200" }, "message": "sched: clean up compiler warning\n\nReported-by: Daniel Walker \u003cdwalker@mvista.com\u003e\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "338b9bb3adac0d2c5a1e180491d9b001d624c402", "tree": "1552739e19d1e2c41702a6cf1e4204e5f28a5722", "parents": [ "7f9dce38378f0a4a298e885553d6bb7121376376", "af0575bba0f46dd9054d46e0a88c57afad3bf4d2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 20:39:21 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 20:39:21 2008 -0700" }, "message": "Merge branch \u0027x86/auditsc\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland\n\n* \u0027x86/auditsc\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland:\n i386 syscall audit fast-path\n x86_64 ia32 syscall audit fast-path\n x86_64 syscall audit fast-path\n x86_64: remove bogus optimization in sysret_signal\n" }, { "commit": "7f9dce38378f0a4a298e885553d6bb7121376376", "tree": "5bfd688c9f356f7216bbc3cef3b4c10153de334b", "parents": [ "26dcce0fabbef75ae426461edf21b5030bad60f3", "ba42059fbd0aa1ac91b582412b5fedb1258f241f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 19:36:53 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 19:36:53 2008 -0700" }, "message": "Merge branch \u0027sched/for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027sched/for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n sched: hrtick_enabled() should use cpu_active()\n sched, x86: clean up hrtick implementation\n sched: fix build error, provide partition_sched_domains() unconditionally\n sched: fix warning in inc_rt_tasks() to not declare variable \u0027rq\u0027 if it\u0027s not needed\n cpu hotplug: Make cpu_active_map synchronization dependency clear\n cpu hotplug, sched: Introduce cpu_active_map and redo sched domain managment (take 2)\n sched: rework of \"prioritize non-migratable tasks over migratable ones\"\n sched: reduce stack size in isolated_cpu_setup()\n Revert parts of \"ftrace: do not trace scheduler functions\"\n\nFixed up conflicts in include/asm-x86/thread_info.h (due to the\nTIF_SINGLESTEP unification vs TIF_HRTICK_RESCHED removal) and\nkernel/sched_fair.c (due to cpu_active_map vs for_each_cpu_mask_nr()\nintroduction).\n" }, { "commit": "26dcce0fabbef75ae426461edf21b5030bad60f3", "tree": "56c64fa47dc29f7ea5a8fd0cab0459fb0a05a2bc", "parents": [ "d7b6de14a0ef8a376f9d57b867545b47302b7bfb", "eb6a12c2428d21a9f3e0f1a50e927d5fd80fc3d0" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 18:37:44 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 18:37:44 2008 -0700" }, "message": "Merge branch \u0027cpus4096-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027cpus4096-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)\n NR_CPUS: Replace NR_CPUS in speedstep-centrino.c\n cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP\n NR_CPUS: Replace NR_CPUS in cpufreq userspace routines\n NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var\n NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genapic_flat_64.c\n NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genx2apic_uv_x.c\n NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.c\n NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.c\n cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix\n cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_target\n cpumask: Provide a generic set of CPUMASK_ALLOC macros\n cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c\n cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c\n cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c\n cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c\n cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c\n cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr\n Revert \"cpumask: introduce new APIs\"\n cpumask: make for_each_cpu_mask a bit smaller\n net: Pass reference to cpumask variable in net/sunrpc/svc.c\n ...\n\nFix up trivial conflicts in drivers/cpufreq/cpufreq.c manually\n" }, { "commit": "d7b6de14a0ef8a376f9d57b867545b47302b7bfb", "tree": "46904d68a5a68f22e6c6baf3472edd4c37a39481", "parents": [ "30d38542ec777468bb6a31829076a2dbc5690e35", "4dca10a96041f78bed11ce9e4a5cfde813ec4ccb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 18:34:13 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 18:34:13 2008 -0700" }, "message": "Merge branch \u0027core/softlockup-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip\n\n* \u0027core/softlockup-for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:\n softlockup: fix invalid proc_handler for softlockup_panic\n softlockup: fix watchdog task wakeup frequency\n softlockup: fix watchdog task wakeup frequency\n softlockup: show irqtrace\n softlockup: print a module list on being stuck\n softlockup: fix NMI hangs due to lock race - 2.6.26-rc regression\n softlockup: fix false positives on nohz if CPU is 100% idle for more than 60 seconds\n softlockup: fix softlockup_thresh fix\n softlockup: fix softlockup_thresh unaligned access and disable detection at runtime\n softlockup: allow panic on lockup\n" }, { "commit": "86a1c34a929f30fde8ad01ea8245df61ddcf58b7", "tree": "c4983e33488c66d3fcccad07b87b27f1bd2e6841", "parents": [ "15e8f348db372dec21229fda5d52ae6ee7e64666" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Mon Jun 23 15:37:04 2008 -0700" }, "committer": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Wed Jul 23 17:47:32 2008 -0700" }, "message": "x86_64 syscall audit fast-path\n\nThis adds a fast path for 64-bit syscall entry and exit when\nTIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.\nThis path does not need to save and restore all registers as\nthe general case of tracing does. Avoiding the iret return path\nwhen syscall audit is enabled helps performance a lot.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\n" }, { "commit": "2db873211ba47ef704c301f9ecf4a33413a0b649", "tree": "1d406d7b446da8e677f6014b4fd101456e485466", "parents": [ "1bad879a078111748ebc27fb0d29e8c916556835" ], "author": { "name": "Uwe Kleine-König", "email": "Uwe.Kleine-Koenig@digi.com", "time": "Wed Jul 23 14:42:25 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 23 09:35:53 2008 -0700" }, "message": "set_irq_wake: fix return code and wake status tracking\n\nSince 15a647eba94c3da27ccc666bea72e7cca06b2d19 set_irq_wake returned -ENXIO\nif another device had it already enabled. Zero is the right value to\nreturn in this case. Moreover the change to desc-\u003estatus was not reverted\nif desc-\u003echip-\u003eset_wake returned an error.\n\nSigned-off-by: Uwe Kleine-König \u003cUwe.Kleine-Koenig@digi.com\u003e\nAcked-by: David Brownell \u003cdbrownell@users.sourceforge.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "422037bafde8083acc3c539ceba3dfc60a04110c", "tree": "7516e51c68a64fc4ef44a88110674229dcbe0058", "parents": [ "31656519e132f6612584815f128c83976a9aaaef" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 23 11:16:38 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Jul 23 11:18:28 2008 +0200" }, "message": "sched: fix hrtick \u0026 generic-ipi dependency\n\nAndrew Morton reported this s390 allmodconfig build failure:\n\n kernel/built-in.o: In function `hrtick_start_fair\u0027:\n sched.c:(.text+0x69c6): undefined reference to `__smp_call_function_single\u0027\n\nthe reason is that s390 is not a generic-ipi SMP platform yet, while\nthe hrtick code relies on it. Fix the dependency.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "6eaaaac97433575894570a990aa27310040a8177", "tree": "0d61224358c40309096a0c026ad0d1c7120fa0d6", "parents": [ "06b8147c5dbd385b5b97ca74e19f6f3951ebc1cb", "a1ef5adb4cad43460ebba23c5a78cf4a55bb6a5b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 22 13:17:15 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 22 13:17:15 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:\n remove CONFIG_KMOD from core kernel code\n remove CONFIG_KMOD from lib\n remove CONFIG_KMOD from sparc64\n rework try_then_request_module to do less in non-modular kernels\n remove mention of CONFIG_KMOD from documentation\n make CONFIG_KMOD invisible\n modules: Take a shortcut for checking if an address is in a module\n module: turn longs into ints for module sizes\n Shrink struct module: CONFIG_UNUSED_SYMBOLS ifdefs\n module: reorder struct module to save space on 64 bit builds\n module: generic each_symbol iterator function\n module: don\u0027t use stop_machine for waiting rmmod\n" }, { "commit": "53baaaa9682c230410a057263d1ce2922f43ddc4", "tree": "f5cced5622130f780d76953b284a631c3d226488", "parents": [ "f10140fbe5f97ecfeda986a12d0f1bad75642779", "3f9787046ea37a26170dc4439efa21f8d23a9978" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 22 13:13:47 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 22 13:13:47 2008 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (79 commits)\n arm: bus_id -\u003e dev_name() and dev_set_name() conversions\n sparc64: fix up bus_id changes in sparc core code\n 3c59x: handle pci_name() being const\n MTD: handle pci_name() being const\n HP iLO driver\n sysdev: Convert the x86 mce tolerant sysdev attribute to generic attribute\n sysdev: Add utility functions for simple int/ulong variable sysdev attributes\n sysdev: Pass the attribute to the low level sysdev show/store function\n driver core: Suppress sysfs warnings for device_rename().\n kobject: Transmit return value of call_usermodehelper() to caller\n sysfs-rules.txt: reword API stability statement\n debugfs: Implement debugfs_remove_recursive()\n HOWTO: change email addresses of James in HOWTO\n always enable FW_LOADER unless EMBEDDED\u003dy\n uio-howto.tmpl: use unique output names\n uio-howto.tmpl: use standard copyright/legal markings\n sysfs: don\u0027t call notify_change\n sysdev: fix debugging statements in registration code.\n kobject: should use kobject_put() in kset-example\n kobject: reorder kobject to save space on 64 bit builds\n ...\n" }, { "commit": "5f17156fc55abac476d180e480bedb0f07f01b14", "tree": "52131aa02f9dc58b549048924fb69886cfbea464", "parents": [ "141c024036dc8ee7b2b374c6645659f1a2fc4334" ], "author": { "name": "Atsushi Nemoto", "email": "anemo@mba.ocn.ne.jp", "time": "Mon Jul 21 14:21:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 22 09:59:41 2008 -0700" }, "message": "Fix build on COMPAT platforms when CONFIG_EPOLL is disabled\n\nAdd missing cond_syscall() entry for compat_sys_epoll_pwait.\n\nSigned-off-by: Atsushi Nemoto \u003canemo@mba.ocn.ne.jp\u003e\nCc: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[2.6.25.x, 2.6.26.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "91cd4d6ef0abb1f65e81f8fe37e7d3c10344e38c", "tree": "48aa8cfd245839381d5b16ff8065abc96031a6c5", "parents": [ "1673ad52bd9a3c747e596a76e65c55981ea651e3" ], "author": { "name": "Miao Xie", "email": "miaox@cn.fujitsu.com", "time": "Mon Jul 21 14:21:35 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 22 09:59:41 2008 -0700" }, "message": "cpusets: fix wrong domain attr updates\n\nFix wrong domain attr updates, or we will always update the first sched\ndomain attr.\n\nSigned-off-by: Miao Xie \u003cmiaox@cn.fujitsu.com\u003e\nCc: Hidetoshi Seto \u003cseto.hidetoshi@jp.fujitsu.com\u003e\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \u003cstable@kernel.org\u003e\t[2.6.26.x]\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a1ef5adb4cad43460ebba23c5a78cf4a55bb6a5b", "tree": "1556b41ff7a03a6941cb363d97204bfef501f9c4", "parents": [ "a00caa1fa954c734f4214a074727a329a9ba6568" ], "author": { "name": "Johannes Berg", "email": "johannes@sipsolutions.net", "time": "Tue Jul 08 19:00:17 2008 +0200" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:31 2008 +1000" }, "message": "remove CONFIG_KMOD from core kernel code\n\nAlways compile request_module when the kernel allows modules.\n\nSigned-off-by: Johannes Berg \u003cjohannes@sipsolutions.net\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "3a642e99babe0617febb6f402e1e063479f489db", "tree": "09f7d6c7b0a4e3869d11c739113e5dd5a8ff5a2c", "parents": [ "2f0f2a334bc38b61a9afca951185cd3844ee709d" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:28 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:28 2008 +1000" }, "message": "modules: Take a shortcut for checking if an address is in a module\n\nThis patch keeps track of the boundaries of module allocation, in\norder to speed up module_text_address().\n\nInspired by Arjan\u0027s version, which required arch-specific defines:\n\n\tVarious pieces of the kernel (lockdep, latencytop, etc) tend\n\tto store backtraces, sometimes at a relatively high\n\tfrequency. In itself this isn\u0027t a big performance deal (after\n\tall you\u0027re using diagnostics features), but there have been\n\tsome complaints from people who have over 100 modules loaded\n\tthat this is a tad too slow.\n\n\tThis is due to the new backtracer code which looks at every\n\tslot on the stack to see if it\u0027s a kernel/module text address,\n\tso that\u0027s 1024 slots. 1024 times 100 modules... that\u0027s a lot\n\tof list walking.\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "2f0f2a334bc38b61a9afca951185cd3844ee709d", "tree": "c73089563f51c818ed97dec463408d6ac9cf1e8e", "parents": [ "f7f5b67557eac1131ba6532522e3c50eced34238" ], "author": { "name": "Denys Vlasenko", "email": "vda.linux@googlemail.com", "time": "Tue Jul 22 19:24:27 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:27 2008 +1000" }, "message": "module: turn longs into ints for module sizes\n\nThis shrinks module.o and each *.ko file.\n\nAnd finally, structure members which hold length of module\ncode (four such members there) and count of symbols\nare converted from longs to ints.\n\nWe cannot possibly have a module where 32 bits won\u0027t\nbe enough to hold such counts.\n\nFor one, module loading checks module size for sanity\nbefore loading, so such insanely big module will fail\nthat test first.\n\nSigned-off-by: Denys Vlasenko \u003cvda.linux@googlemail.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "f7f5b67557eac1131ba6532522e3c50eced34238", "tree": "8547b900f4bc40f69673c78b261ac5b44423fbfb", "parents": [ "af5406895a05720a879dc33e2f4878fa503e81b3" ], "author": { "name": "Denys Vlasenko", "email": "vda.linux@googlemail.com", "time": "Tue Jul 22 19:24:26 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:27 2008 +1000" }, "message": "Shrink struct module: CONFIG_UNUSED_SYMBOLS ifdefs\n\nmodule.c and module.h conatains code for finding\nexported symbols which are declared with EXPORT_UNUSED_SYMBOL,\nand this code is compiled in even if CONFIG_UNUSED_SYMBOLS is not set\nand thus there can be no EXPORT_UNUSED_SYMBOLs in modules anyway\n(because EXPORT_UNUSED_SYMBOL(x) are compiled out to nothing then).\n\nThis patch adds required #ifdefs.\n\nSigned-off-by: Denys Vlasenko \u003cvda.linux@googlemail.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "dafd0940c96fec67974a88ed8e6b8ba3160394cd", "tree": "616da8f0f283509ec71ff2d6e467fa4c6877edc6", "parents": [ "da39ba5e1d65e997a98f6eb93ba6e6eb505f6e3c" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:25 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:26 2008 +1000" }, "message": "module: generic each_symbol iterator function\n\nIntroduce an each_symbol() iterator to avoid duplicating the knowledge\nabout the 5 different sections containing symbols. Currently only\nused by find_symbol(), but will be used by symbol_put_addr() too.\n\n(Includes NULL ptr deref fix by Jiri Kosina \u003cjkosina@suse.cz\u003e)\n\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "da39ba5e1d65e997a98f6eb93ba6e6eb505f6e3c", "tree": "7c47c0481a7e8b9a9a13a9ce6ea8f11ed145b546", "parents": [ "93ded9b8fd42abe2c3607097963d8de6ad9117eb" ], "author": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:25 2008 -0500" }, "committer": { "name": "Rusty Russell", "email": "rusty@rustcorp.com.au", "time": "Tue Jul 22 19:24:25 2008 +1000" }, "message": "module: don\u0027t use stop_machine for waiting rmmod\n\nrmmod has a little-used \"-w\" option, meaning that instead of failing if the\nmodule is in use, it should block until the module becomes unused.\n\nIn this case, we don\u0027t need to use stop_machine: Max Krasnyansky\nindicated that would be useful for SystemTap which loads/unloads new\nmodules frequently.\n\nCc: Max Krasnyansky \u003cmaxk@qualcomm.com\u003e\nSigned-off-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\n" }, { "commit": "4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed", "tree": "c2d3a0f86ade5061a1bb9a14aa702323d729fd54", "parents": [ "36ce6dad6e3cb3f050ed41e0beac0070d2062b25" ], "author": { "name": "Andi Kleen", "email": "andi@firstfloor.org", "time": "Tue Jul 01 18:48:41 2008 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jul 21 21:55:02 2008 -0700" }, "message": "sysdev: Pass the attribute to the low level sysdev show/store function\n\nThis allow to dynamically generate attributes and share show/store\nfunctions between attributes. Right now most attributes are generated\nby special macros and lots of duplicated code. With the attribute\npassed it\u0027s instead possible to attach some data to the attribute\nand then use that in shared low level functions to do different things.\n\nI need this for the dynamically generated bank attributes in the x86\nmachine check code, but it\u0027ll allow some further cleanups.\n\nI converted all users in tree to the new show/store prototype. It\u0027s a single\nhuge patch to avoid unbisectable sections.\n\nRuntime tested: x86-32, x86-64\nCompiled only: ia64, powerpc\nNot compile tested/only grep converted: sh, arm, avr32\n\nSigned-off-by: Andi Kleen \u003cak@linux.intel.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "ba42059fbd0aa1ac91b582412b5fedb1258f241f", "tree": "50ed4c9170ad5d4645303967ca7a99bde369a0f4", "parents": [ "d986434a7d32079cc6cbedcdb04d834aa9b323ff" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 20 11:02:06 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 20 11:02:06 2008 +0200" }, "message": "sched: hrtick_enabled() should use cpu_active()\n\nPeter pointed out that hrtick_enabled() should use cpu_active().\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "d986434a7d32079cc6cbedcdb04d834aa9b323ff", "tree": "cf1feb5139d76cef0446945b5cad741c47ae9d8d", "parents": [ "1b427c153a08fdbc092c2bdbf845b92fda58d857", "31656519e132f6612584815f128c83976a9aaaef" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 20 11:01:29 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 20 11:01:29 2008 +0200" }, "message": "Merge branch \u0027sched/urgent\u0027 into sched/devel\n" }, { "commit": "31656519e132f6612584815f128c83976a9aaaef", "tree": "595349fdcd65988d7a43d647594dcea8a8a4e80b", "parents": [ "577b4a58d2e74a4d48050eeea3e3f952ce04eb86" ], "author": { "name": "Peter Zijlstra", "email": "peterz@infradead.org", "time": "Fri Jul 18 18:01:23 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Jul 20 10:37:28 2008 +0200" }, "message": "sched, x86: clean up hrtick implementation\n\nrandom uvesafb failures were reported against Gentoo:\n\n http://bugs.gentoo.org/show_bug.cgi?id\u003d222799\n\nand Mihai Moldovan bisected it back to:\n\n\u003e 8f4d37ec073c17e2d4aa8851df5837d798606d6f is first bad commit\n\u003e commit 8f4d37ec073c17e2d4aa8851df5837d798606d6f\n\u003e Author: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\n\u003e Date: Fri Jan 25 21:08:29 2008 +0100\n\u003e\n\u003e sched: high-res preemption tick\n\nLinus suspected it to be hrtick + vm86 interaction and observed:\n\n\u003e Btw, Peter, Ingo: I think that commit is doing bad things. They aren\u0027t\n\u003e _incorrect_ per se, but they are definitely bad.\n\u003e\n\u003e Why?\n\u003e\n\u003e Using random _TIF_WORK_MASK flags is really impolite for doing\n\u003e \"scheduling\" work. There\u0027s a reason that arch/x86/kernel/entry_32.S\n\u003e special-cases the _TIF_NEED_RESCHED flag: we don\u0027t want to exit out of\n\u003e vm86 mode unnecessarily.\n\u003e\n\u003e See the \"work_notifysig_v86\" label, and how it does that\n\u003e \"save_v86_state()\" thing etc etc.\n\nRight, I never liked having to fiddle with those TIF flags. Initially I\nneeded it because the hrtimer base lock could not nest in the rq lock.\nThat however is fixed these days.\n\nCurrently the only reason left to fiddle with the TIF flags is remote\nwakeups. We cannot program a remote cpu\u0027s hrtimer. I\u0027ve been thinking\nabout using the new and improved IPI function call stuff to implement\nhrtimer_start_on().\n\nHowever that does require that smp_call_function_single(.wait\u003d0) works\nfrom interrupt context - /me looks at the latest series from Jens - Yes\nthat does seem to be supported, good.\n\nHere\u0027s a stab at cleaning this stuff up ...\n\nMihai reported test success as well.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nTested-by: Mihai Moldovan \u003cionic@ionic.de\u003e\nCc: Michal Januszewski \u003cspock@gentoo.org\u003e\nCc: Antonino Daplas \u003cadaplas@gmail.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "c18a41fbbc500ac0307ffd2b0ae73c2af9d0b0ab", "tree": "4242e1bdd8200ef00b5ae5da5d717231fa90a430", "parents": [ "333cdd1f0e5e0aad6b7f8992291563bc7b14670b" ], "author": { "name": "Mike Travis", "email": "travis@sgi.com", "time": "Tue Jul 15 14:14:34 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 22:02:59 2008 +0200" }, "message": "cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c\n\n * Optimize various places where a pointer to the cpumask_of_cpu value\n will result in reducing stack pressure.\n\nSigned-off-by: Mike Travis \u003ctravis@sgi.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "65c011845316d3c1381f478ca0d8265c43b3b039", "tree": "a7e29e92a1ad0440ef5fe16dc16d73e8bf7983d2", "parents": [ "bb2c018b09b681d43f5e08124b83e362647ea82b" ], "author": { "name": "Mike Travis", "email": "travis@sgi.com", "time": "Tue Jul 15 14:14:30 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 22:02:57 2008 +0200" }, "message": "cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr\n\n * This patch replaces the dangerous lvalue version of cpumask_of_cpu\n with new cpumask_of_cpu_ptr macros. These are patterned after the\n node_to_cpumask_ptr macros.\n\n In general terms, if there is a cpumask_of_cpu_map[] then a pointer to\n the cpumask_of_cpu_map[cpu] entry is used. The cpumask_of_cpu_map\n is provided when there is a large NR_CPUS count, reducing\n greatly the amount of code generated and stack space used for\n cpumask_of_cpu(). The pointer to the cpumask_t value is needed for\n calling set_cpus_allowed_ptr() to reduce the amount of stack space\n needed to pass the cpumask_t value.\n\n If there isn\u0027t a cpumask_of_cpu_map[], then a temporary variable is\n declared and filled in with value from cpumask_of_cpu(cpu) as well as\n a pointer variable pointing to this temporary variable. Afterwards,\n the pointer is used to reference the cpumask value. The compiler\n will optimize out the extra dereference through the pointer as well\n as the stack space used for the pointer, resulting in identical code.\n\n A good example of the orthogonal usages is in net/sunrpc/svc.c:\n\n\tcase SVC_POOL_PERCPU:\n\t{\n\t\tunsigned int cpu \u003d m-\u003epool_to[pidx];\n\t\tcpumask_of_cpu_ptr(cpumask, cpu);\n\n\t\t*oldmask \u003d current-\u003ecpus_allowed;\n\t\tset_cpus_allowed_ptr(current, cpumask);\n\t\treturn 1;\n\t}\n\tcase SVC_POOL_PERNODE:\n\t{\n\t\tunsigned int node \u003d m-\u003epool_to[pidx];\n\t\tnode_to_cpumask_ptr(nodecpumask, node);\n\n\t\t*oldmask \u003d current-\u003ecpus_allowed;\n\t\tset_cpus_allowed_ptr(current, nodecpumask);\n\t\treturn 1;\n\t}\n\nSigned-off-by: Mike Travis \u003ctravis@sgi.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bb2c018b09b681d43f5e08124b83e362647ea82b", "tree": "d794902c78f9fdd04ed88a4b8d451ed6f9292ec0", "parents": [ "82638844d9a8581bbf33201cc209a14876eca167", "5b664cb235e97afbf34db9c4d77f08ebd725335e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 22:00:54 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 22:00:54 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into cpus4096\n\nConflicts:\n\n\tdrivers/acpi/processor_throttling.c\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "9b610fda0df5d0f0b0c64242e37441ad1b384aac", "tree": "0ea14b15f2e6546f37fe18d8ac3dc83077ec0e55", "parents": [ "b8f8c3cf0a4ac0632ec3f0e15e9dc0c29de917af", "5b664cb235e97afbf34db9c4d77f08ebd725335e" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 19:53:16 2008 +0200" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 19:53:16 2008 +0200" }, "message": "Merge branch \u0027linus\u0027 into timers/nohz\n" }, { "commit": "8df185a95c9b84fc0c3c02224e64fdc5b83bae34", "tree": "dd53306fbec26ca7da24494b2844622363dc8bb3", "parents": [ "8b95d9172be7146c87e7a998310ce2919c851adc" ], "author": { "name": "Mike Travis", "email": "travis@sgi.com", "time": "Tue Jul 08 15:55:48 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 18:46:58 2008 +0200" }, "message": "kthread: reduce stack pressure in create_kthread and kthreadd\n\n * Replace:\n\n \tset_cpus_allowed(..., CPU_MASK_ALL)\n\n with:\n\n \tset_cpus_allowed_ptr(..., CPU_MASK_ALL_PTR)\n\n to remove excessive stack requirements when NR_CPUS\u003d4096.\n\nSigned-off-by: Mike Travis \u003ctravis@sgi.com\u003e\nCc: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4dca10a96041f78bed11ce9e4a5cfde813ec4ccb", "tree": "114f22ddf2a8dd1ac96ddd56204d86d92db53242", "parents": [ "1e09481365ce248dbb4eb06dad70129bb5807037" ], "author": { "name": "Hiroshi Shimamoto", "email": "h-shimamoto@ct.jp.nec.com", "time": "Mon Jul 07 18:37:04 2008 -0700" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Fri Jul 18 18:29:28 2008 +0200" }, "message": "softlockup: fix invalid proc_handler for softlockup_panic\n\nThe type of softlockup_panic is int, but the proc_handler is\nproc_doulongvec_minmax(). This handler is for unsigned long.\n\nThis handler should be proc_dointvec_minmax().\n\nSigned-off-by: Hiroshi Shimamoto \u003ch-shimamoto@ct.jp.nec.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" } ], "next": "b8f8c3cf0a4ac0632ec3f0e15e9dc0c29de917af" }