)]}' { "log": [ { "commit": "e9b15b54d3646108bbd3e054158b402025d3e704", "tree": "4e12028b9fd62fc13ad66d047f5d0052c2208e96", "parents": [ "962b564cf1ec8041e8890a3c3847e3a630a08f42" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Wed Nov 23 13:37:44 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 23 16:08:39 2005 -0800" }, "message": "[PATCH] Fix crash in unregister_console()\n\nIf unregister_console() is inadvertently called while no consoles are\nregistered, it will crash trying to dereference NULL pointer. It is\nnecessary to fix that because register_console() provides no indication\nthat it actually registered the console passed in. In fact, it may well\ndecide not to register it based on various things...\n\n(akpm: It\u0027d be better to make register_console() return something and fix the\ncallers. All 106 of them...)\n\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cc3327e7dfc16a9a3e164075234c869867a59e45", "tree": "d120c13540a7fa4769c0bf53eb12628a76366631", "parents": [ "7b6ac9dffe6f4dd8776908b234ac1410ed15f112" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Wed Nov 23 13:37:38 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 23 16:08:38 2005 -0800" }, "message": "[PATCH] mm: unbloat get_futex_key\n\nThe follow_page changes in get_futex_key have left it with two almost\nidentical blocks, when handling the rare case of a futex in a nonlinear vma.\nget_user_pages will itself do that follow_page, and its additional\nfind_extend_vma is hardly any overhead since the vma is already cached. Let\u0027s\njust delete the follow_page block and let get_user_pages do it.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c2b5a251b9feca727661f1a3278cafb1de4c80f3", "tree": "499369ecd5ef3af4f409df9d86c5e3c5bd4ca2de", "parents": [ "2d0ebb36038c0626cde662a3b06da9787cfb68c3" ], "author": { "name": "Matthew Wilcox", "email": "matthew@wil.cx", "time": "Thu Nov 03 07:51:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 23 11:11:28 2005 -0800" }, "message": "[PATCH] Check the irq number is within bounds\n\nMost of the functions already check. Do the ones that didn\u0027t.\n\nSigned-off-by: Matthew Wilcox \u003cmatthew@wil.cx\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0b0db14c536debd92328819fe6c51a49717e8440", "tree": "9fb2df9bc06a30bbc44d980614e441974be55660", "parents": [ "689bcebfda16d7bace742740bfb3137fff30b529" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Mon Nov 21 21:32:20 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Nov 22 09:13:43 2005 -0800" }, "message": "[PATCH] unpaged: copy_page_range vma\n\nFor copy_one_pte\u0027s print_bad_pte to show the task correctly (instead of\n\"???\"), dup_mmap must pass down parent vma rather than child vma.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "996417d2c4eb583e94553e4ede58974e0da1c38e", "tree": "61a1c6dfa7e4d65ce1424f2225c1f46b15f16bb1", "parents": [ "2463ade2cb78224302998ee3c7dc7d53da88d258" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@us.ibm.com", "time": "Fri Nov 18 01:10:50 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Nov 18 07:49:45 2005 -0800" }, "message": "[PATCH] add success/failure indication to RCU torture test\n\nOne issue with the RCU torture test is that the current error flagging can\nbe lost in dmesg. This patch adds a \"SUCCESS\"/\"FAILURE\" string to the line\nthat flags the end of the test, where it can easily be seen with \"dmesg |\ntail\" at the end of the test. Also adds tests of architecture-specific\nmemory barriers -- or, more likely, of the RCU torture test itself.\n\nCc: \u003cvatsa@in.ibm.com\u003e\nSigned-off-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ddad86c2d6f660112c6ce8aabae6ffd346e25b9b", "tree": "f11cca30f8c67631b5b2d51d5ab45398bedfe6ff", "parents": [ "aeec46b97a7975fd983219177980c58ed4fd607c" ], "author": { "name": "Martin Waitz", "email": "tali@admingilde.org", "time": "Sun Nov 13 16:08:14 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:21 2005 -0800" }, "message": "[PATCH] DocBook: include printk documentation\n\nAdd printk documentation to kernel-api.\n\nSigned-off-by: Martin Waitz \u003ctali@admingilde.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3f39894d1b5c253b10fcb8fbbbcf65a330f6cdc7", "tree": "6d166da37e874f2c0b891d4cf61b5f4b9bf5a71f", "parents": [ "09e12f9f6bcd9af516d901223cebdbae58b32c9f" ], "author": { "name": "George Anzinger", "email": "george@mvista.com", "time": "Sun Nov 13 16:07:44 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:17 2005 -0800" }, "message": "[PATCH] timespec: normalize off by one errors\n\nIt would appear that the timespec normalize code has an off by one error.\nFound in three places. Thanks to Ben for spotting.\n\nSigned-off-by: George Anzinger\u003cgeorge@mvista.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "20dcae32439384b6863c626bb3b2a09bed65b33e", "tree": "9750c39119447fb32963448bf1935e1ba22b2f9d", "parents": [ "4557398f8cbaf9f254cff747534b4724c7f75c4f" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Sun Nov 13 16:07:33 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:16 2005 -0800" }, "message": "[PATCH] aio: remove kioctx from mm_struct\n\nSync iocbs have a life cycle that don\u0027t need a kioctx. Their retrying, if\nany, is done in the context of their owner who has allocated them on the\nstack.\n\nThe sole user of a sync iocb\u0027s ctx reference was aio_complete() checking for\nan elevated iocb ref count that could never happen. No path which grabs an\niocb ref has access to sync iocbs.\n\nIf we were to implement sync iocb cancelation it would be done by the owner of\nthe iocb using its on-stack reference.\n\nRemoving this chunk from aio_complete allows us to remove the entire kioctx\ninstance from mm_struct, reducing its size by a third. On a i386 testing box\nthe slab size went from 768 to 504 bytes and from 5 to 8 per page.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nAcked-by: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4557398f8cbaf9f254cff747534b4724c7f75c4f", "tree": "052b59279b1312a4fde83a76feb4a7a0c5cf7df1", "parents": [ "c5b609797b8e212dbfaf23944da8bf8c53233d5c" ], "author": { "name": "Kirill Korotaev", "email": "dev@sw.ru", "time": "Sun Nov 13 16:07:30 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:16 2005 -0800" }, "message": "[PATCH] stop_machine() vs. synchronous IPI send deadlock\n\nThis fixes deadlock of stop_machine() vs. synchronous IPI send. The\nproblem is that stop_machine() disables interrupts before disabling\npreemption on other CPUs. So if another CPU is preempted and then calls\nsomething like flush_tlb_all() it will deadlock with CPU doing\nstop_machine() and which can\u0027t process IPI due to disabled IRQs.\n\nI changed stop_machine() to do the same things exactly as it does on other\nCPUs, i.e. it should disable preemption first on _all_ CPUs including\nitself and only after that disable IRQs.\n\nSigned-off-by: Kirill Korotaev \u003cdev@sw.ru\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: \"Andrey Savochkin\" \u003csaw@sawoct.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dbdf65b1b7f8ec48bda1604cfea7ac09ce583d6b", "tree": "f6a278d3e0353beb777d4ed2414cae1d00a31602", "parents": [ "66341a905ef5b3e7aea65b5d9bd1b0361b0ccc61" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Sun Nov 13 16:07:22 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:15 2005 -0800" }, "message": "[PATCH] rcutorture: renice to low priority\n\nMake the box usable for interactive work when running the RCU torture test,\nby renicing the RCU torture-test threads to +19 by default. Kthreads run\nat nice -5 by default.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b17b0421d70f5b85a791afe145a16d5ca5f849aa", "tree": "0aca6753added9c76681d6eb63294a1943597dd9", "parents": [ "ba260e23efbabcff975f60401475c2bdd693f872" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Sun Nov 13 16:07:14 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:15 2005 -0800" }, "message": "[PATCH] signal handling: revert sigkill priority fix\n\nThis patch reverts commit c33880aaddbbab1ccf36f4457ed1090621f2e39a since\nit\u0027s not needed anymore. As pointed out by Roland McGrath the real fix\nis to deliver all signals before returning to user space.\nSee http://www.ussg.iu.edu/hypermail/linux/kernel/0509.2/0683.html\nA fix for s390 has been merged.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "10ebffde3d3916026974352b7900e44afe2b243f", "tree": "ac88fa33694f5bea1b6958e1e56bcd4c9b95b002", "parents": [ "a1261f54611ec4ad6a7ab7080f86747e3ac3685b" ], "author": { "name": "Al Viro", "email": "viro@parcelfarce.linux.theplanet.co.uk", "time": "Sun Nov 13 16:06:56 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:13 2005 -0800" }, "message": "[PATCH] m68k: introduce setup_thread_stack() and end_of_stack()\n\nencapsulates the rest of arch-dependent operations with thread_info access.\nTwo new helpers - setup_thread_stack() and end_of_stack(). For normal case\nthe former consists of copying thread_info of parent to new thread_info and\nthe latter returns pointer immediately past the end of thread_info.\n\nSigned-off-by: Al Viro \u003cviro@parcelfarce.linux.theplanet.co.uk\u003e\nSigned-off-by: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a1261f54611ec4ad6a7ab7080f86747e3ac3685b", "tree": "8a65c419da590e3712543f69284fb5f8cd613a37", "parents": [ "7feacd53347c04aee789ba5d632eda0c3fc421c4" ], "author": { "name": "Al Viro", "email": "viro@parcelfarce.linux.theplanet.co.uk", "time": "Sun Nov 13 16:06:55 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:13 2005 -0800" }, "message": "[PATCH] m68k: introduce task_thread_info\n\nnew helper - task_thread_info(task). On platforms that have thread_info\nallocated separately (i.e. in default case) it simply returns\ntask-\u003ethread_info. m68k wants (and for good reasons) to embed its thread_info\ninto task_struct. So it will (in later patch) have task_thread_info() of its\nown. For now we just add a macro for generic case and convert existing\ninstances of its body in core kernel to uses of new macro. Obviously safe -\nall normal architectures get the same preprocessor output they used to get.\n\nSigned-off-by: Al Viro \u003cviro@parcelfarce.linux.theplanet.co.uk\u003e\nSigned-off-by: Roman Zippel \u003czippel@linux-m68k.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5563e77078d85c4f107a0a673500c43ce57cf702", "tree": "b9cacaa2f6ad595d6ade9e69f8a84d7c9b063048", "parents": [ "3c8d61bcf2d762fb84dbf741df400c833cada18a" ], "author": { "name": "Bob Picco", "email": "bob.picco@hp.com", "time": "Sun Nov 13 16:06:35 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:11 2005 -0800" }, "message": "[PATCH] cpuset: fix return without releasing semaphore\n\nIt is wrong to acquire the semaphore and then return from\ncpuset_zone_allowed without releasing it.\n\nSigned-off-by: Bob Picco \u003cbob.picco@hp.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "005f18dfd0ed86c39716277b61dfb4bd2af91059", "tree": "8425228dc52bb38a5fe85d52afaecacca2f3a6fd", "parents": [ "ab767201881fec073157986c314485ab26caa4a0" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sun Nov 13 16:06:33 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:11 2005 -0800" }, "message": "[PATCH] fix task_struct leak in ptrace\n\nWhen ptrace_attach fails we need to drop the task_struct reference.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bca73e4bf8563d83f7856164caa44d5f42e44cca", "tree": "ea8c50adca509c8012aed715d578b6c927f9e284", "parents": [ "95e861db3eaba7bc99f8605db70103ec3d078203" ], "author": { "name": "Jeff Garzik", "email": "jgarzik@pobox.com", "time": "Sun Nov 13 16:06:25 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:10 2005 -0800" }, "message": "[PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h\n\nSince few people need the support anymore, this moves the legacy\npm_xxx functions to CONFIG_PM_LEGACY, and include/linux/pm_legacy.h.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "393b07258766130146b962bc294d66615a47468a", "tree": "dd65ab16725baaa2fb2b3029b2e9bc540d346ceb", "parents": [ "a46699c9a32505cb5bbfd16f76e7d4a2c84a7705" ], "author": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Thu Nov 10 12:47:50 2005 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Thu Nov 10 12:47:50 2005 -0800" }, "message": "[SPARC64]: Re-export uts_sem for solaris compat module.\n\nRevert: b26b9bc58263acda274f82a9dde8b6d96559878a\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "7ed0175a462c4c30f6df6fac1cccac058f997739", "tree": "30e894294260f8595565b620a7bb0b9cf8d1d69c", "parents": [ "759979ab17512a061c3a3e870f091af27ccdcbfb" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Thu Nov 10 17:22:18 2005 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Nov 10 09:57:19 2005 -0800" }, "message": "[PATCH] Don\u0027t auto-reap traced children\n\nIf a task is being traced we never auto-reap it even if it might look\nlike its parent doesn\u0027t care. The tracer obviously _does_ care.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a47ab9371e664952b1104a70ec8e9b74db3f7a5f", "tree": "4efadd76dcd5c1712ce2e337ef2e8a87acdc8518", "parents": [ "6730c3c14421b7c924d06e31bb66e0adad225547" ], "author": { "name": "Chen, Kenneth W", "email": "kenneth.w.chen@intel.com", "time": "Wed Nov 09 15:45:29 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 16:07:44 2005 -0800" }, "message": "[PATCH] optimize activate_task()\n\nrecalc_task_prio() is called from activate_task() to calculate dynamic\npriority and interactive credit for the activating task. For real-time\nscheduling process, all that dynamic calculation is thrown away at the end\nbecause rt priority is fixed. Patch to optimize recalc_task_prio() away\nfor rt processes.\n\nSigned-off-by: Ken Chen \u003ckenneth.w.chen@intel.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cpiggin@cyberone.com.au\u003e\nCc: Con Kolivas \u003ckernel@kolivas.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "28d838cc4dfea980cb6eda0a7409cbf91889ca74", "tree": "4bbf42063718ac7744ca67ef9f67adce17bfbb5c", "parents": [ "ac111bfaa6b0b3c0edc63c27bd9617d6b08851ff" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 11:33:07 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 11:33:07 2005 -0800" }, "message": "Fix ptrace self-attach rule\n\nBefore we did CLONE_THREAD, the way to check whether we were attaching\nto ourselves was to just check \"current \u003d\u003d task\", but with CLONE_THREAD\nwe should check that the thread group ID matches instead.\n\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "64c7c8f88559624abdbe12b5da6502e8879f8d28", "tree": "02f85a35ddd0f24dec70e5d6ecd61073578fd8d6", "parents": [ "5bfb5d690f36d316a5f3b4f7775fda996faa6b12" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Tue Nov 08 21:39:04 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:33 2005 -0800" }, "message": "[PATCH] sched: resched and cpu_idle rework\n\nMake some changes to the NEED_RESCHED and POLLING_NRFLAG to reduce\nconfusion, and make their semantics rigid. Improves efficiency of\nresched_task and some cpu_idle routines.\n\n* In resched_task:\n- TIF_NEED_RESCHED is only cleared with the task\u0027s runqueue lock held,\n and as we hold it during resched_task, then there is no need for an\n atomic test and set there. The only other time this should be set is\n when the task\u0027s quantum expires, in the timer interrupt - this is\n protected against because the rq lock is irq-safe.\n\n- If TIF_NEED_RESCHED is set, then we don\u0027t need to do anything. It\n won\u0027t get unset until the task get\u0027s schedule()d off.\n\n- If we are running on the same CPU as the task we resched, then set\n TIF_NEED_RESCHED and no further action is required.\n\n- If we are running on another CPU, and TIF_POLLING_NRFLAG is *not* set\n after TIF_NEED_RESCHED has been set, then we need to send an IPI.\n\nUsing these rules, we are able to remove the test and set operation in\nresched_task, and make clear the previously vague semantics of\nPOLLING_NRFLAG.\n\n* In idle routines:\n- Enter cpu_idle with preempt disabled. When the need_resched() condition\n becomes true, explicitly call schedule(). This makes things a bit clearer\n (IMO), but haven\u0027t updated all architectures yet.\n\n- Many do a test and clear of TIF_NEED_RESCHED for some reason. According\n to the resched_task rules, this isn\u0027t needed (and actually breaks the\n assumption that TIF_NEED_RESCHED is only cleared with the runqueue lock\n held). So remove that. Generally one less locked memory op when switching\n to the idle thread.\n\n- Many idle routines clear TIF_POLLING_NRFLAG, and only set it in the inner\n most polling idle loops. The above resched_task semantics allow it to be\n set until before the last time need_resched() is checked before going into\n a halt requiring interrupt wakeup.\n\n Many idle routines simply never enter such a halt, and so POLLING_NRFLAG\n can be always left set, completely eliminating resched IPIs when rescheduling\n the idle task.\n\n POLLING_NRFLAG width can be increased, to reduce the chance of resched IPIs.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Con Kolivas \u003ckernel@kolivas.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ede3d0fba99520f268067917b50858d788bc41da", "tree": "5c33dc43c22f0c2b17db2f118156384baa35cae8", "parents": [ "6dd4a85bb3ee0715415892c8b0f2a9bd08d31ca4" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Tue Nov 08 21:39:00 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:32 2005 -0800" }, "message": "[PATCH] sched: consider migration thread with smp nice\n\nThe intermittent scheduling of the migration thread at ultra high priority\nmakes the smp nice handling see that runqueue as being heavily loaded. The\nmigration thread itself actually handles the balancing so its influence on\npriority balancing should be ignored.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6dd4a85bb3ee0715415892c8b0f2a9bd08d31ca4", "tree": "a53890e37a81c4da1d6e6f398aaea66880d4f996", "parents": [ "3b0bd9bc6f3b8a47853d1b1de4520de3878e8941" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Tue Nov 08 21:38:59 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:32 2005 -0800" }, "message": "[PATCH] sched: correct smp_nice_bias\n\nThe priority biasing was off by mutliplying the total load by the total\npriority bias and this ruins the ratio of loads between runqueues. This\npatch should correct the ratios of loads between runqueues to be proportional\nto overall load. -2nd attempt.\n\nFrom: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\n\n This patch fixes a divide-by-zero error that I hit on a two-way i386\n machine. rq-\u003enr_running is tested to be non-zero, but may change by the\n time it is used in the division. Saving the value to a local variable\n ensures that the same value that is checked is used in the division.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nSigned-off-by: Dave Kleikamp \u003cshaggy@austin.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3b0bd9bc6f3b8a47853d1b1de4520de3878e8941", "tree": "5900a1fbf46d3c83aca09fca0ba664af40151082", "parents": [ "dad1c65c8000f4485d8602e1875ded77e0d72133" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Tue Nov 08 21:38:58 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:32 2005 -0800" }, "message": "[PATCH] sched: smp nice bias busy queues on idle rebalance\n\nTo intensify the \u0027nice\u0027 support across physical cpus on SMP we can bias the\nloads on idle rebalancing. To prevent idle rebalance from trying to pull tasks\nfrom queues that appear heavily loaded we only bias the load if there is more\nthan one task running.\n\nAdd some minor micro-optimisations and have only one return from __source_load\nand __target_load functions.\n\nFix the fact that target_load was not biased by priority when type \u003d\u003d 0.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dad1c65c8000f4485d8602e1875ded77e0d72133", "tree": "2981648916055ac92bb809b88957ff429764dc02", "parents": [ "738a2ccbcf8c2c1b039f1e76662dce60b22b694b" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Tue Nov 08 21:38:57 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:32 2005 -0800" }, "message": "[PATCH] sched: account rt tasks in prio_bias()\n\nReal time tasks\u0027 effect on prio_bias should be based on their real time\npriority level instead of their static_prio which is based on nice.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "738a2ccbcf8c2c1b039f1e76662dce60b22b694b", "tree": "b7359315b135d2266cef2bcfac10347ab34a3ad9", "parents": [ "b910472dd3b7c1d51af9a594a759f642520c33e1" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Tue Nov 08 21:38:56 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:32 2005 -0800" }, "message": "[PATCH] sched: change prio bias only if queued\n\nprio_bias should only be adjusted in set_user_nice if p is actually currently\nqueued.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b910472dd3b7c1d51af9a594a759f642520c33e1", "tree": "cf2f0496b671bf8728f16b009c84e8811afbcae3", "parents": [ "b54134be53be720da423692665ec215eb14a678b" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Tue Nov 08 21:38:55 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:56:32 2005 -0800" }, "message": "[PATCH] sched: implement nice support across physical cpus on SMP\n\nThis patch implements \u0027nice\u0027 support across physical cpus on SMP.\n\nIt introduces an extra runqueue variable prio_bias which is the sum of the\n(inverted) static priorities of all the tasks on the runqueue.\n\nThis is then used to bias busy rebalancing between runqueues to obtain good\ndistribution of tasks of different nice values. By biasing the balancing only\nduring busy rebalancing we can avoid having any significant loss of throughput\nby not affecting the carefully tuned idle balancing already in place. If all\ntasks are running at the same nice level this code should also have minimal\neffect. The code is optimised out in the !CONFIG_SMP case.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0fbeb5a45dccd493c35a68a5548e6a9d9882a791", "tree": "4cf24e2d08bd39d06cbe372376b4d996df8378f4", "parents": [ "ed14b52701e6ef5a5aaf7bdb75932d5ea5dd7387" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 08 21:34:41 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:55:52 2005 -0800" }, "message": "[PATCH] swsusp: rework swsusp_suspend\n\nThis patch makes only the functions in swsusp.c call functions in snapshot.c\nand not both ways.  It also moves the check for available swap out of\nswsusp_suspend() which is necessary for separating the swap-handling functions\nin swsusp from the core code.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ed14b52701e6ef5a5aaf7bdb75932d5ea5dd7387", "tree": "d69e6cb3777daab9e7b98aaad5b3a96491044862", "parents": [ "054bd4c18853f3a3851bd97aa90e11022a69dc42" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 08 21:34:40 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:55:52 2005 -0800" }, "message": "[PATCH] swsusp: simplify pagedir relocation\n\nThis patch simplifies the relocation of the page backup list (aka pagedir)\nduring resume.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "054bd4c18853f3a3851bd97aa90e11022a69dc42", "tree": "6d4aa1416b4837930ed517aa8c6e741ff45e5d9b", "parents": [ "a31751e04ea738acc8042e5aa1a825901aa7b97f" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Tue Nov 08 21:34:39 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:55:52 2005 -0800" }, "message": "[PATCH] swsusp: reduce code duplication\n\nThe changes made by this patch are necessary for the pagedir relocation\nsimplification in the next patch.  Additionally, these changes allow us to\ndrop check_pagedir() and make get_safe_page() be a one-line wrapper around\nalloc_image_page() (get_safe_page() goes to snapshot.c, because\nalloc_image_page() is static and it does not make sense to export it).\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nCc: Pavel Machek \u003cpavel@ucw.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "969e9afd489514252a680914c6d8b9322c713eb4", "tree": "c4a5f7961995961e0305344c2f5759a80c3955ff", "parents": [ "08de1f0461ad40136e7373cf85e2f3c221a9ad9a" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Tue Nov 08 21:34:30 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:55:50 2005 -0800" }, "message": "[PATCH] sleep: Fix oops in enter_state\n\nIf ACPI sleep is not configured, but someone still wants to run swsusp,\nhe\u0027d get oops in enter_state. This is regression since 2.6.14 and this\nfixes it.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3aef1bde147a503aacb59b767826720a996aea6d", "tree": "c736d4433a21e7564fff7062fea651e3fd1bc820", "parents": [ "90d45d17f3e68608ac7ba8fc3d7acce022a19c8e" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Tue Nov 08 21:34:25 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:55:50 2005 -0800" }, "message": "[PATCH] quieten softlockup at boot\n\nOn a large SMP box we get a lot of softlockup thread XX started lines.\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "90d45d17f3e68608ac7ba8fc3d7acce022a19c8e", "tree": "615b2f21c3e02e0ec901febd180014fed64a6a01", "parents": [ "330d57fb98a916fa8e1363846540dd420e99499a" ], "author": { "name": "Ashok Raj", "email": "ashok.raj@intel.com", "time": "Tue Nov 08 21:34:24 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Nov 09 07:55:50 2005 -0800" }, "message": "[PATCH] cpu hotplug: fix locking in cpufreq drivers\n\nWhen calling target drivers to set frequency, we take cpucontrol lock.\nWhen we modified the code to accomodate CPU hotplug, there was an attempt\nto take a double lock of cpucontrol leading to a deadlock. Since the\ncurrent thread context is already holding the cpucontrol lock, we dont need\nto make another attempt to acquire it.\n\nNow we leave a trace in current-\u003eflags indicating current thread already is\nunder cpucontrol lock held, so we dont attempt to do this another time.\n\nThanks to Andrew Morton for the beating:-)\n\nFrom: Brice Goglin \u003cBrice.Goglin@ens-lyon.org\u003e\n\n Build fix\n\n(akpm: this patch is still unpleasant. Ashok continues to look for a cleaner\nsolution, doesn\u0027t he? ;))\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Brice Goglin \u003cBrice.Goglin@ens-lyon.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "330d57fb98a916fa8e1363846540dd420e99499a", "tree": "841d5e5eeda46fd95ac03c36964919818a9bc3a6", "parents": [ "8546df6f357dadf1989ad8da9309c9524fd56cdf" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Nov 04 10:18:40 2005 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Nov 08 17:57:30 2005 -0800" }, "message": "[PATCH] Fix sysctl unregistration oops (CVE-2005-2709)\n\nYou could open the /proc/sys/net/ipv4/conf/\u003cif\u003e/\u003cwhatever\u003e file, then\nwait for interface to go away, try to grab as much memory as possible in\nhope to hit the (kfreed) ctl_table. Then fill it with pointers to your\nfunction. Then do read from file you\u0027ve opened and if you are lucky,\nyou\u0027ll get it called as -\u003eproc_handler() in kernel mode.\n\nSo this is at least an Oops and possibly more. It does depend on an\ninterface going away though, so less of a security risk than it would\notherwise be.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d27ba47e7e8c466c18983a1779d611f82d6a354f", "tree": "2870d82516be16e0cae63e1f7e84bd855bb34a23", "parents": [ "e3d8b77bc7a89d190ee895d0570af10c026e5086", "dd3e2dcf3408843ed35501c28626f389b30be756" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 18:42:23 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 18:42:23 2005 -0800" }, "message": "Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6\n" }, { "commit": "7b7b1ace2d9d06d76bce7481a045c22ed75e35dd", "tree": "458f9f16b855ed0347013048c13d3a29031f00ee", "parents": [ "254ce8dc882f8d69e5d49ed4807c94a61976fb15" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Nov 07 17:13:39 2005 -0500" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 18:18:09 2005 -0800" }, "message": "[PATCH] saner handling of auto_acct_off() and DQUOT_OFF() in umount\n\nThe way we currently deal with quota and process accounting that might\nkeep vfsmount busy at umount time is inherently broken; we try to turn\nthem off just in case (not quite correctly, at that) and\n\n a) pray umount doesn\u0027t fail (otherwise they\u0027ll stay turned off)\n b) pray nobody doesn anything funny just as we turn quota off\n\nMoreover, LSM provides hooks for doing the same sort of broken logics.\n\nThe proper way to deal with that is to introduce the second kind of\nreference to vfsmount. Semantics:\n\n - when the last normal reference is dropped, all special ones are\n converted to normal ones and if there had been any, cleanup is done.\n - normal reference can be cloned into a special one\n - special reference can be converted to normal one; that\u0027s a no-op if\n we\u0027d already passed the point of no return (i.e. mntput() had\n converted special references to normal and started cleanup).\n\nThe way it works: e.g. starting process accounting converts the vfsmount\nreference pinned by the opened file into special one and turns it back\nto normal when it gets shut down; acct_auto_close() is done when no\nnormal references are left. That way it does *not* obstruct umount(2)\nand it silently gets turned off when the last normal reference to\nvfsmount is gone. Which is exactly what we want...\n\nThe same should be done by LSM module that holds some internal\nreferences to vfsmount and wants to shut them down on umount - it should\nmake them special and security_sb_umount_close() will be called exactly\nwhen the last normal reference to vfsmount is gone.\n\nquota handling is even simpler - we don\u0027t use normal file IO anymore, so\nthere\u0027s no need to hold vfsmounts at all. DQUOT_OFF() is done from\ndeactivate_super(), where it really belongs.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dedeb0029b9c83420fc1337d4ee53daa7b2a0ad4", "tree": "d87e66e1d6240cd412c20ecbc12f5b810c9807e4", "parents": [ "b8ae48656db860d4c83a29aa7b0588fc89361935" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Mon Nov 07 14:09:01 2005 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Nov 07 14:09:01 2005 -0800" }, "message": "[SPARC64] mm: context switch ptlock\n\nsparc64 is unique among architectures in taking the page_table_lock in\nits context switch (well, cris does too, but erroneously, and it\u0027s not\nyet SMP anyway).\n\nThis seems to be a private affair between switch_mm and activate_mm,\nusing page_table_lock as a per-mm lock, without any relation to its uses\nelsewhere. That\u0027s fine, but comment it as such; and unlock sooner in\nswitch_mm, more like in activate_mm (preemption is disabled here).\n\nThere is a block of \"if (0)\"ed code in smp_flush_tlb_pending which would\nhave liked to rely on the page_table_lock, in switch_mm and elsewhere;\nbut its comment explains how dup_mmap\u0027s flush_tlb_mm defeated it. And\nthough that could have been changed at any time over the past few years,\nnow the chance vanishes as we push the page_table_lock downwards, and\nperhaps split it per page table page. Just delete that block of code.\n\nWhich leaves the mysterious spin_unlock_wait(\u0026oldmm-\u003epage_table_lock)\nin kernel/fork.c copy_mm. Textual analysis (supported by Nick Piggin)\nsuggests that the comment was written by DaveM, and that it relates to\nthe defeated approach in the sparc64 smp_flush_tlb_pending. Just delete\nthis block too.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "b26b9bc58263acda274f82a9dde8b6d96559878a", "tree": "edbd7974e2287db0b794b1221e6f294405c7e8d9", "parents": [ "4664957b8ec78533f542900cecf7c38fbdc0d8da" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Nov 07 01:01:43 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:54:07 2005 -0800" }, "message": "[PATCH] unexport uts_sem\n\nI didn\u0027t find any possible modular usage in the kernel.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4664957b8ec78533f542900cecf7c38fbdc0d8da", "tree": "57b34a69db7d00b35ff358d83bff50a0ebbb82ea", "parents": [ "4936967374c1ad0eb3b734f24875e2484c3786cc" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Nov 07 01:01:42 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:54:07 2005 -0800" }, "message": "[PATCH] unexport idle_cpu\n\nI didn\u0027t find any possible modular usage in the kernel.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47bdfb96de47d25bea423b5adbfe1c2e1ceaa296", "tree": "15db7aa7828eecb91142a5dd98cd5e97e1a1114a", "parents": [ "f8b8db77b0cc36670ef4ed6bc31e64537ffa197e" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Nov 07 01:01:39 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:54:07 2005 -0800" }, "message": "[PATCH] unexport console_unblank\n\nI didn\u0027t find any possible modular usage of console_unblank in the\nkernel.\n\nThis patch was already ACK\u0027ed by Alan Cox.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b8887e6e8c04bcefb512cdb08fc7e9c310ac847e", "tree": "f8dcfee2314ad0c1998e70449fdd814e675cf90a", "parents": [ "1e5d533142c1c178a31d4cc81837eb078f9269bc" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Mon Nov 07 01:01:07 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:55 2005 -0800" }, "message": "[PATCH] kernel-docs: fix kernel-doc format problems\n\nConvert to proper kernel-doc format.\n\nSome have extra blank lines (not allowed immed. after the function name)\nor need blank lines (after all parameters). Function summary must be only\none line.\n\nColon (\":\") in a function description does weird things (causes kernel-doc\nto think that it\u0027s a new section head sadly).\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1e5d533142c1c178a31d4cc81837eb078f9269bc", "tree": "7708cc8667035ad7903f3c2c617a54240f2d6e77", "parents": [ "8a0d4900697f2d615a77cd99585e743c1af555a3" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Mon Nov 07 01:01:06 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:55 2005 -0800" }, "message": "[PATCH] more kernel-doc cleanups, additions\n\nVarious core kernel-doc cleanups:\n- add missing function parameters in ipc, irq/manage, kernel/sys,\n kernel/sysctl, and mm/slab;\n- move description to just above function for kernel_restart()\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d217d5450f11d8c907c0458d175b0dc999b4d06d", "tree": "ebd68eb9e0b632049d22240a3589887ca27077a5", "parents": [ "991a51d83a3d9bebfafdd1e692cf310899d60791" ], "author": { "name": "Ananth N Mavinakayanahalli", "email": "ananth@in.ibm.com", "time": "Mon Nov 07 01:00:14 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:46 2005 -0800" }, "message": "[PATCH] Kprobes: preempt_disable/enable() simplification\n\nReorganize the preempt_disable/enable calls to eliminate the extra preempt\ndepth. Changes based on Paul McKenney\u0027s review suggestions for the kprobes\nRCU changeset.\n\nSigned-off-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nSigned-off-by: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3516a46042508a495fac13c2e73530d936ebe015", "tree": "2d03117832b5c2439987de73420a38fc3e5983e4", "parents": [ "e7a510f92c1e482a7db05afd3cb84af1f4cfe0bc" ], "author": { "name": "Ananth N Mavinakayanahalli", "email": "ananth@in.ibm.com", "time": "Mon Nov 07 01:00:13 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:46 2005 -0800" }, "message": "[PATCH] Kprobes: Use RCU for (un)register synchronization - base changes\n\nChanges to the base kprobes infrastructure to use RCU for synchronization\nduring kprobe registration and unregistration. These changes coupled with the\narch kprobe changes (next in series):\n\na. serialize registration and unregistration of kprobes.\nb. enable lockless execution of handlers. Handlers can now run in parallel.\n\nSigned-off-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nSigned-off-by: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e65845235c8120be63001fc1a4ac00c819194bbe", "tree": "209a081cc07375290743ceb45f52dc474f45382a", "parents": [ "66ff2d0691e00e1e7bfdf398a970310c9a0fe671" ], "author": { "name": "Ananth N Mavinakayanahalli", "email": "ananth@in.ibm.com", "time": "Mon Nov 07 01:00:07 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:45 2005 -0800" }, "message": "[PATCH] Kprobes: Track kprobe on a per_cpu basis - base changes\n\nChanges to the base kprobe infrastructure to track kprobe execution on a\nper-cpu basis.\n\nSigned-off-by: Ananth N Mavinakayanahalli \u003cananth@in.ibm.com\u003e\nSigned-off-by: Anil S Keshavamurthy \u003canil.s.keshavamurthy@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "481bed454247538e9f57d4ea37b153ccba24ba7b", "tree": "bb4198296962c08dbf52e8f377dc27206f621640", "parents": [ "db73e9aa99bf093427b79877f9475392724fd5e5" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Mon Nov 07 00:59:47 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:42 2005 -0800" }, "message": "[PATCH] consolidate sys_ptrace()\n\nThe sys_ptrace boilerplate code (everything outside the big switch\nstatement for the arch-specific requests) is shared by most architectures.\nThis patch moves it to kernel/ptrace.c and leaves the arch-specific code as\narch_ptrace.\n\nSome architectures have a too different ptrace so we have to exclude them.\nThey continue to keep their implementations. For sh64 I had to add a\nsh64_ptrace wrapper because it does some initialization on the first call.\nFor um I removed an ifdefed SUBARCH_PTRACE_SPECIAL block, but\nSUBARCH_PTRACE_SPECIAL isn\u0027t defined anywhere in the tree.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: Paul Mackerras \u003cpaulus@samba.org\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nAcked-By: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nAcked-by: Paul Mundt \u003clethal@linux-sh.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8c65b4a60450590e79a28e9717ceffa9e4debb3f", "tree": "e0e42b5faee0a1c44746a36d9df7a8fbb2a2c24c", "parents": [ "6fdcc2162285a8fc96ab12ff85086c37bceaa494" ], "author": { "name": "Tim Schmielau", "email": "tim@physik3.uni-rostock.de", "time": "Mon Nov 07 00:59:43 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:41 2005 -0800" }, "message": "[PATCH] fix remaining missing includes\n\nFix more include file problems that surfaced since I submitted the previous\nfix-missing-includes.patch. This should now allow not to include sched.h\nfrom module.h, which is done by a followup patch.\n\nSigned-off-by: Tim Schmielau \u003ctim@physik3.uni-rostock.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "796f8d9b98fc92a5e9aaea8cf932957850332f51", "tree": "66e0a2bdf18e03c7dadba7c4c7b896533aa2e762", "parents": [ "d55b5fdaf40846221d543937b786956e27837fda" ], "author": { "name": "David Gibson", "email": "david@gibson.dropbear.id.au", "time": "Mon Nov 07 00:59:33 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:38 2005 -0800" }, "message": "[PATCH] FUTEX_WAKE_OP: enhanced error handling\n\nThe code for FUTEX_WAKE_OP calls an arch callback,\nfutex_atomic_op_inuser(). That callback can return an error code, but\ncurrently the caller assumes any error is EFAULT, and will try various\nthings to resolve the fault before eventually giving up with EFAULT\n(regardless of the original error code). This is not a theoretical case -\narch callbacks currently return -ENOSYS if the opcode they are given is\nbogus.\n\nThis patch alters the code to detect non-EFAULT errors and return them\ndirectly to the user.\n\nOf course, whether -ENOSYS is the correct return value for the bogus opcode\ncase, or whether EINVAL would be more appropriate is another question.\n\nSigned-off-by: David Gibson \u003cdwg@au1.ibm.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jamie Lokier \u003cjamie@shareable.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d55b5fdaf40846221d543937b786956e27837fda", "tree": "ecdf572d7d2b08b4f7b31d804542a920934b6d9a", "parents": [ "0f6ed7c2641fe4cea83cd09c21928ca30c0983ec" ], "author": { "name": "Zach Brown", "email": "zach.brown@oracle.com", "time": "Mon Nov 07 00:59:31 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:38 2005 -0800" }, "message": "[PATCH] aio: remove aio_max_nr accounting race\n\nAIO was adding a new context\u0027s max requests to the global total before\ntesting if that resulting total was over the global limit. This let\ninnocent tasks get their new limit tested along with a racing guilty task\nthat was crossing the limit. This serializes the _nr accounting with a\nspinlock It also switches to using unsigned long for the global totals.\nIndividual contexts are still limited to an unsigned int\u0027s worth of\nrequests by the syscall interface.\n\nThe problem and fix were verified with a simple program that spun creating\nand destroying a context while holding on to another long lived context.\nBefore the patch a task creating a tiny context could get a spurious EAGAIN\nif it raced with a task creating a very large context that overran the\nlimit.\n\nSigned-off-by: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9f46080c41d5f3f7c00b4e169ba4b0b2865258bf", "tree": "e2c029ef7f0cd5fb8ea9b78db3f7be5badaf59b1", "parents": [ "49364ce2534418462d681ad99e52e79a00b0f40b" ], "author": { "name": "Matt Helsley", "email": "matthltc@us.ibm.com", "time": "Mon Nov 07 00:59:16 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:35 2005 -0800" }, "message": "[PATCH] Process Events Connector\n\nThis patch adds a connector that reports fork, exec, id change, and exit\nevents for all processes to userspace. It replaces the fork_advisor patch\nthat ELSA is currently using. Applications that may find these events\nuseful include accounting/auditing (e.g. ELSA), system activity monitoring\n(e.g. top), security, and resource management (e.g. CKRM).\n\nSigned-off-by: Matt Helsley \u003cmatthltc@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47b90ffe5c10ab9b5cfd14087b28b13109673ee5", "tree": "423c789290ef8eada4916f540c3e8f0be06316d1", "parents": [ "dc19d507b17135069d9c5d6093d4458dc60e1861" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Mon Nov 07 00:58:41 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:29 2005 -0800" }, "message": "[PATCH] swsusp: remove unused variable\n\nRemove unused variable, and make code less evil that way. Fix whitespace\naround for-loop-like macro.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dc19d507b17135069d9c5d6093d4458dc60e1861", "tree": "a5913fbd1185b3af5463a90aca59fe902aba2f73", "parents": [ "36fabc248e5466e3f28897819b0400b5cdbb8dc6" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Mon Nov 07 00:58:40 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:29 2005 -0800" }, "message": "[PATCH] swsusp cleanups\n\nThis cleans spaces between * and pointer up, and adds \"int\" in \"unsigned\nint\".\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a4c4af7c8dc1eccdfb8c57e1684f08179b4407e6", "tree": "210773f292da3ba85818402f1945ee7b14ba8c71", "parents": [ "cc658cfe3c66a6124b5a8db90cdcdd440201b1dc" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Mon Nov 07 00:58:38 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:29 2005 -0800" }, "message": "[PATCH] cpu hoptlug: avoid usage of smp_processor_id() in preemptible code\n\nReplace smp_processor_id() with any_online_cpu(cpu_online_map) in order to\navoid lots of \"BUG: using smp_processor_id() in preemptible [00000001]\ncode:...\" messages in case taking a cpu online fails.\n\nAll the traces start at the last notifier_call_chain(...) in kernel/cpu.c.\nSince we hold the cpu_control semaphore it shouldn\u0027t be any problem to access\ncpu_online_map.\n\nThe reason why cpu_up failed is simply that the cpu that was supposed to be\ntaken online wasn\u0027t even there. That is because on s390 we never know when a\nnew cpu comes and therefore cpu_possible_map consists of only ones and doesn\u0027t\nreflect reality.\n\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7fd93cf30c531fd8b014e827e7a85fcfc010b2c6", "tree": "38326a3b27a04845f86054c85ebeda0d1170d87a", "parents": [ "863c84b97cb660dbb949398e196c0b1bbe4ed39f" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Mon Nov 07 00:57:59 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:53:24 2005 -0800" }, "message": "[PATCH] posix-timers `unlikely\u0027 rejig\n\n!unlikely(expr) hurts my brain. likely(!expr) is more straightforward.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "889dfafe836ac9bb711f73d07a4c044cae177c0b", "tree": "ca46672a0d807f82e5d1b13e1b9dff0b561d5f36", "parents": [ "c8ebce6eeb1f6f83fd8c0de209f1f7b627220a81" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Fri Nov 04 18:54:30 2005 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Nov 04 10:45:28 2005 -0800" }, "message": "[PATCH] improve scheduler fairness a bit\n\nDo not transfer remaining time slice to another cpu on process exit.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "23fd07750a789a66fe88cf173d52a18f1a387da4", "tree": "06fdd6df35fdb835abdaa9b754d62f6b84b97250", "parents": [ "bd787d438a59266af3c9f6351644c85ef1dd21fe", "ed28f96ac1960f30f818374d65be71d2fdf811b0" ], "author": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Mon Oct 31 13:37:12 2005 +1100" }, "committer": { "name": "Paul Mackerras", "email": "paulus@samba.org", "time": "Mon Oct 31 13:37:12 2005 +1100" }, "message": "Merge ../linux-2.6 by hand\n" }, { "commit": "4e57b6817880946a3a78d5d8cad1ace363f7e449", "tree": "b6b5f3f9e8e52cc55d98239a4992e72e983c8fa4", "parents": [ "b0423a0d9cc836b2c3d796623cd19236bfedfe63" ], "author": { "name": "Tim Schmielau", "email": "tim@physik3.uni-rostock.de", "time": "Sun Oct 30 15:03:48 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:32 2005 -0800" }, "message": "[PATCH] fix missing includes\n\nI recently picked up my older work to remove unnecessary #includes of\nsched.h, starting from a patch by Dave Jones to not include sched.h\nfrom module.h. This reduces the number of indirect includes of sched.h\nby ~300. Another ~400 pointless direct includes can be removed after\nthis disentangling (patch to follow later).\nHowever, quite a few indirect includes need to be fixed up for this.\n\nIn order to feed the patches through -mm with as little disturbance as\npossible, I\u0027ve split out the fixes I accumulated up to now (complete for\ni386 and x86_64, more archs to follow later) and post them before the real\npatch. This way this large part of the patch is kept simple with only\nadding #includes, and all hunks are independent of each other. So if any\nhunk rejects or gets in the way of other patches, just drop it. My scripts\nwill pick it up again in the next round.\n\nSigned-off-by: Tim Schmielau \u003ctim@physik3.uni-rostock.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b0423a0d9cc836b2c3d796623cd19236bfedfe63", "tree": "21c6ebdc052b4e085aacb295b55c168bc60bcae2", "parents": [ "ae6866c377943de73e2c95398ff0120516f167ce" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@us.ibm.com", "time": "Sun Oct 30 15:03:46 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:32 2005 -0800" }, "message": "[PATCH] Remove duplicate code in signal.c\n\nCombine a bit of redundant code between force_sig_info() and\nforce_sig_specific().\n\nSigned-off-by: paulmck@us.ibm.com\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ae6866c377943de73e2c95398ff0120516f167ce", "tree": "cd1e6a08f830de244696c5ff60f8309571cf090d", "parents": [ "621d31219d9a788bda924a0613048053f3f5f211" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:03:46 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:32 2005 -0800" }, "message": "[PATCH] remove unneeded SI_TIMER checks\n\nThis patch removes checks for -\u003esi_code \u003d\u003d SI_TIMER from send_signal,\nspecific_send_sig_info, __group_send_sig_info.\n\nI think posix-timers.c used these functions some time ago, now it sends\nsignals via send_{,group_}sigqueue, so these hooks are unneeded.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "621d31219d9a788bda924a0613048053f3f5f211", "tree": "9fb9846fdd999ba04c436aa84c7da0d8233ac545", "parents": [ "b67a1b9e4bf878aa5d4b6b44cb5a251a2f425f0d" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:03:45 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:31 2005 -0800" }, "message": "[PATCH] cleanup the usage of SEND_SIG_xxx constants\n\nThis patch simplifies some checks for magic siginfo values. It should not\nchange the behaviour in any way.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b67a1b9e4bf878aa5d4b6b44cb5a251a2f425f0d", "tree": "8fa921440476083be42f21ce6d0c4091a3757742", "parents": [ "3e6716e748609a3a899e8d670e42832921bd45bc" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:03:44 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:31 2005 -0800" }, "message": "[PATCH] remove hardcoded SEND_SIG_xxx constants\n\nThis patch replaces hardcoded SEND_SIG_xxx constants with\ntheir symbolic names.\n\nNo changes in affected .o files.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4098f9918e068e51fed1727f6ba80efcec372378", "tree": "0495f14e29ad93c165988be49c70ec658fffd086", "parents": [ "70a6a0cb92f24fd6bbe2e75299168909f735676a" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Oct 30 15:03:21 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:28 2005 -0800" }, "message": "[PATCH] sched: hardcode non-smp set_cpus_allowed\n\nSimplify the UP (1 CPU) implementatin of set_cpus_allowed.\n\nThe one CPU is hardcoded to be cpu 0 - so just test for that bit, and avoid\nhaving to pick up the cpu_online_map.\n\nAlso, unexport cpu_online_map: it was only needed for set_cpus_allowed().\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "708f430dcc50787d1c0b5c31962a5ff0dd8e35eb", "tree": "5c37085047a9c83555607e8811423da4dd3ed4ed", "parents": [ "a241ec65aeac3d69a08a7b153cccbdb7ea35063f" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Sun Oct 30 15:03:13 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:27 2005 -0800" }, "message": "[PATCH] posix-cpu-timers: fix overrun reporting\n\nThis change corrects an omission in posix_cpu_timer_schedule, so that it\ncorrectly propagates the overrun calculation to where it will get reported\nto the user.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a241ec65aeac3d69a08a7b153cccbdb7ea35063f", "tree": "e96585e8b1e699f31bad1fa61f34d2ec7c3a187c", "parents": [ "b3099b48da23686d8378133b0264ee00385ee5fa" ], "author": { "name": "Paul E. McKenney", "email": "paulmck@us.ibm.com", "time": "Sun Oct 30 15:03:12 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:27 2005 -0800" }, "message": "[PATCH] RCU torture-testing kernel module\n\nThis patch is a rewrite of the one submitted on October 1st, using modules\n(http://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d112819093522998\u0026w\u003d2).\n\nThis rewrite adds a tristate CONFIG_RCU_TORTURE_TEST, which enables an\nintense torture test of the RCU infratructure. This is needed due to the\ncontinued changes to the RCU infrastructure to accommodate dynamic ticks,\nCPU hotplug, realtime, and so on. Most of the code is in a separate file\nthat is compiled only if the CONFIG variable is set. Documentation on how\nto run the test and interpret the output is also included.\n\nThis code has been tested on i386 and ppc64, and an earlier version of the\ncode has received extensive testing on a number of architectures as part of\nthe PREEMPT_RT patchset.\n\nSigned-off-by: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ecea8d19c9f0ebd62ddaa07fc919ff4e4b820d99", "tree": "189de0b898157618fbf08ec6e4adc8e5cce71ec3", "parents": [ "371e8c25b65f2fe7942868a8a67129d571e94076" ], "author": { "name": "Thomas Gleixner", "email": "tglx@linutronix.de", "time": "Sun Oct 30 15:03:00 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:25 2005 -0800" }, "message": "[PATCH] jiffies_64 cleanup\n\nDefine jiffies_64 in kernel/timer.c rather than having 24 duplicated\ndefines in each architecture.\n\nSigned-off-by: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7f2a52555998c699a7e89f24636c909d6fc08a60", "tree": "98ef1254ab3e727ba3470d4eeaf064d5dcb48614", "parents": [ "396dc44bcac58f464b7b23c345052e37881cccea" ], "author": { "name": "Roland McGrath", "email": "roland@redhat.com", "time": "Sun Oct 30 15:02:50 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:24 2005 -0800" }, "message": "[PATCH] wait4 PTRACE_ATTACH race fix\n\nBack about a year ago when I last fiddled heavily with the do_wait code, I\nwas thinking too hard about the wrong thing and I now think I introduced a\nbug whose inverse thought I was fixing.\n\nApparently noone was looking too hard over much shoulder, so as to cite my\nbogus reasoning at the time. In the race condition when PTRACE_ATTACH is\nabout to steal a child and then the child hits a tracing event (what\nmy_ptrace_child checks for), the real parent does need to set its flag\nnoting it has some eligible live children. Otherwise a spurious ECHILD\nerror is possible, since the child in question is not yet on the\nptrace_children list.\n\nSigned-off-by: Roland McGrath \u003croland@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7407251a0e2ed099e4b12b742b635503e981507c", "tree": "826c78104c96a3982ff8348484749c718f4a413a", "parents": [ "40dc565122ed1e180a0637f88cdfca734d33db78" ], "author": { "name": "Coywolf Qi Hunt", "email": "qiyong@fc-cn.com", "time": "Sun Oct 30 15:02:47 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:23 2005 -0800" }, "message": "[PATCH] PF_DEAD cleanup\n\nThe PF_DEAD setting doesn\u0027t belong to exit_notify(), move it to a proper\nplace.\n\nSigned-off-by: Coywolf Qi Hunt \u003cqiyong@fc-cn.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "40dc565122ed1e180a0637f88cdfca734d33db78", "tree": "3076103886ae7f60c9a3cfabaebef821c1e39b10", "parents": [ "2a91f3e54ff27c6002597f689ba51c5fa657ddbd" ], "author": { "name": "Jesper Juhl", "email": "jesper.juhl@gmail.com", "time": "Sun Oct 30 15:02:46 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:23 2005 -0800" }, "message": "[PATCH] cleanup for kernel/printk.c\n\n- Removes some trailing whitespace\n\n- Breaks long lines and make other small changes to conform to CodingStyle\n\n- Add explicit printk loglevels in two places.\n\nSigned-off-by: Jesper Juhl \u003cjesper.juhl@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "20e1129ab831486c811d50d3905343ad48c4275f", "tree": "ab99b7172b903d2b4d3c58d45c11c41e4bba9c87", "parents": [ "29db9190634067c5a328ee5fcc2890251b836b4b" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Sun Oct 30 15:02:44 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:23 2005 -0800" }, "message": "[PATCH] Keys: Get rid of warning in kmod.c if keys disabled\n\nThe attached patch gets rid of a \"statement without effect\" warning when\nCONFIG_KEYS is disabled by making use of the return value of key_get().\nThe compiler will optimise all of this away when keys are disabled.\n\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "30e0fca6c1d7d26f3f2daa4dd2b12c51dadc778a", "tree": "945004584995e3af816125245bbb2436cc8ebc9e", "parents": [ "68860ec10bcc07ab4f89f9d940e3b77ae5ca13b3" ], "author": { "name": "Andrea Arcangeli", "email": "andrea@suse.de", "time": "Sun Oct 30 15:02:38 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:22 2005 -0800" }, "message": "[PATCH] ptrace/coredump/exit_group deadlock\n\nI could seldom reproduce a deadlock with a task not killable in T state\n(TASK_STOPPED, not TASK_TRACED) by attaching a NPTL threaded program to\ngdb, by segfaulting the task and triggering a core dump while some other\ntask is executing exit_group and while one task is in ptrace_attached\nTASK_STOPPED state (not TASK_TRACED yet). This originated from a gdb\nbugreport (the fact gdb was segfaulting the task wasn\u0027t a kernel bug), but\nI just incidentally noticed the gdb bug triggered a real kernel bug as\nwell.\n\nMost threads hangs in exit_mm because the core_dumping is still going, the\ncore dumping hangs because the stopped task doesn\u0027t exit, the stopped task\ncan\u0027t wakeup because it has SIGNAL_GROUP_EXIT set, hence the deadlock.\n\nTo me it seems that the problem is that the force_sig_specific(SIGKILL) in\nzap_threads is a noop if the task has PF_PTRACED set (like in this case\nbecause gdb is attached). The __ptrace_unlink does nothing because the\nsignal-\u003eflags is set to SIGNAL_GROUP_EXIT|SIGNAL_STOP_DEQUEUED (verified).\n\nThe above info also shows that the stopped task hit a race and got the stop\nsignal (presumably by the ptrace_attach, only the attach, state is still\nTASK_STOPPED and gdb hangs waiting the core before it can set it to\nTASK_TRACED) after one of the thread invoked the core dump (it\u0027s the core\ndump that sets signal-\u003eflags to SIGNAL_GROUP_EXIT).\n\nSo beside the fact nobody would wakeup the task in __ptrace_unlink (the\nstate is _not_ TASK_TRACED), there\u0027s a secondary problem in the signal\nhandling code, where a task should ignore the ptrace-sigstops as long as\nSIGNAL_GROUP_EXIT is set (or the wakeup in __ptrace_unlink path wouldn\u0027t be\nenough).\n\nSo I attempted to make this patch that seems to fix the problem. There\nwere various ways to fix it, perhaps you prefer a different one, I just\nopted to the one that looked safer to me.\n\nI also removed the clearing of the stopped bits from the zap_other_threads\n(zap_other_threads was safe unlike zap_threads). I don\u0027t like useless\ncode, this whole NPTL signal/ptrace thing is already unreadable enough and\nfull of corner cases without confusing useless code into it to make it even\nless readable. And if this code is really needed, then you may want to\nexplain why it\u0027s not being done in the other paths that sets\nSIGNAL_GROUP_EXIT at least.\n\nEven after this patch I still wonder who serializes the read of\np-\u003eptrace in zap_threads.\n\nPatch is called ptrace-core_dump-exit_group-deadlock-1.\n\nThis was the trace I\u0027ve got:\n\ntest T ffff81003e8118c0 0 14305 1 14311 14309 (NOTLB)\nffff810058ccdde8 0000000000000082 000001f4000037e1 ffff810000000013\n 00000000000000f8 ffff81003e811b00 ffff81003e8118c0 ffff810011362100\n 0000000000000012 ffff810017ca4180\nCall Trace:\u003cffffffff801317ed\u003e{try_to_wake_up+893} \u003cffffffff80141677\u003e{finish_stop+87}\n \u003cffffffff8014367f\u003e{get_signal_to_deliver+1359} \u003cffffffff8010d3ad\u003e{do_signal+157}\n \u003cffffffff8013deee\u003e{ptrace_check_attach+222} \u003cffffffff80111575\u003e{sys_ptrace+2293}\n \u003cffffffff80131810\u003e{default_wake_function+0} \u003cffffffff80196399\u003e{sys_ioctl+73}\n \u003cffffffff8010dd27\u003e{sysret_signal+28} \u003cffffffff8010e00f\u003e{ptregscall_common+103}\n\ntest D ffff810011362100 0 14309 1 14305 14312 (NOTLB)\nffff810053c81cf8 0000000000000082 0000000000000286 0000000000000001\n 0000000000000195 ffff810011362340 ffff810011362100 ffff81002e338040\n ffff810001e0ca80 0000000000000001\nCall Trace:\u003cffffffff801317ed\u003e{try_to_wake_up+893} \u003cffffffff8044677d\u003e{wait_for_completion+173}\n \u003cffffffff80131810\u003e{default_wake_function+0} \u003cffffffff80137435\u003e{exit_mm+149}\n \u003cffffffff801381af\u003e{do_exit+479} \u003cffffffff80138d0c\u003e{do_group_exit+252}\n \u003cffffffff801436db\u003e{get_signal_to_deliver+1451} \u003cffffffff8010d3ad\u003e{do_signal+157}\n \u003cffffffff8013deee\u003e{ptrace_check_attach+222} \u003cffffffff80140850\u003e{specific_send_sig_info+2\n\n \u003cffffffff8014208a\u003e{force_sig_info+186} \u003cffffffff804479a0\u003e{do_int3+112}\n \u003cffffffff8010e308\u003e{retint_signal+61}\ntest D ffff81002e338040 0 14311 1 14716 14305 (NOTLB)\nffff81005ca8dcf8 0000000000000082 0000000000000286 0000000000000001\n 0000000000000120 ffff81002e338280 ffff81002e338040 ffff8100481cb740\n ffff810001e0ca80 0000000000000001\nCall Trace:\u003cffffffff801317ed\u003e{try_to_wake_up+893} \u003cffffffff8044677d\u003e{wait_for_completion+173}\n \u003cffffffff80131810\u003e{default_wake_function+0} \u003cffffffff80137435\u003e{exit_mm+149}\n \u003cffffffff801381af\u003e{do_exit+479} \u003cffffffff80142d0e\u003e{__dequeue_signal+558}\n \u003cffffffff80138d0c\u003e{do_group_exit+252} \u003cffffffff801436db\u003e{get_signal_to_deliver+1451}\n \u003cffffffff8010d3ad\u003e{do_signal+157} \u003cffffffff8013deee\u003e{ptrace_check_attach+222}\n \u003cffffffff80140850\u003e{specific_send_sig_info+208} \u003cffffffff8014208a\u003e{force_sig_info+186}\n \u003cffffffff804479a0\u003e{do_int3+112} \u003cffffffff8010e308\u003e{retint_signal+61}\n\ntest D ffff810017ca4180 0 14312 1 14309 13882 (NOTLB)\nffff81005d15fcb8 0000000000000082 ffff81005d15fc58 ffffffff80130816\n 0000000000000897 ffff810017ca43c0 ffff810017ca4180 ffff81003e8118c0\n 0000000000000082 ffffffff801317ed\nCall Trace:\u003cffffffff80130816\u003e{activate_task+150} \u003cffffffff801317ed\u003e{try_to_wake_up+893}\n \u003cffffffff8044677d\u003e{wait_for_completion+173} \u003cffffffff80131810\u003e{default_wake_function+0}\n \u003cffffffff8018cdc3\u003e{do_coredump+819} \u003cffffffff80445f52\u003e{thread_return+82}\n \u003cffffffff801436d4\u003e{get_signal_to_deliver+1444} \u003cffffffff8010d3ad\u003e{do_signal+157}\n \u003cffffffff8013deee\u003e{ptrace_check_attach+222} \u003cffffffff80140850\u003e{specific_send_sig_info+2\n\n \u003cffffffff804472e5\u003e{_spin_unlock_irqrestore+5} \u003cffffffff8014208a\u003e{force_sig_info+186}\n \u003cffffffff804476ff\u003e{do_general_protection+159} \u003cffffffff8010e308\u003e{retint_signal+61}\n\nSigned-off-by: Andrea Arcangeli \u003candrea@suse.de\u003e\nCc: Roland McGrath \u003croland@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Linus Torvalds \u003ctorvalds@osdl.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "68860ec10bcc07ab4f89f9d940e3b77ae5ca13b3", "tree": "a411f9623a113d72f23da38cf2de51f66c177873", "parents": [ "fb5eeeee44edb248b4837416966f19731f497f79" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Oct 30 15:02:36 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:22 2005 -0800" }, "message": "[PATCH] cpusets: automatic numa mempolicy rebinding\n\nThis patch automatically updates a tasks NUMA mempolicy when its cpuset\nmemory placement changes. It does so within the context of the task,\nwithout any need to support low level external mempolicy manipulation.\n\nIf a system is not using cpusets, or if running on a system with just the\nroot (all-encompassing) cpuset, then this remap is a no-op. Only when a\ntask is moved between cpusets, or a cpusets memory placement is changed\ndoes the following apply. Otherwise, the main routine below,\nrebind_policy() is not even called.\n\nWhen mixing cpusets, scheduler affinity, and NUMA mempolicies, the\nessential role of cpusets is to place jobs (several related tasks) on a set\nof CPUs and Memory Nodes, the essential role of sched_setaffinity is to\nmanage a jobs processor placement within its allowed cpuset, and the\nessential role of NUMA mempolicy (mbind, set_mempolicy) is to manage a jobs\nmemory placement within its allowed cpuset.\n\nHowever, CPU affinity and NUMA memory placement are managed within the\nkernel using absolute system wide numbering, not cpuset relative numbering.\n\nThis is ok until a job is migrated to a different cpuset, or what\u0027s the\nsame, a jobs cpuset is moved to different CPUs and Memory Nodes.\n\nThen the CPU affinity and NUMA memory placement of the tasks in the job\nneed to be updated, to preserve their cpuset-relative position. This can\nbe done for CPU affinity using sched_setaffinity() from user code, as one\ntask can modify anothers CPU affinity. This cannot be done from an\nexternal task for NUMA memory placement, as that can only be modified in\nthe context of the task using it.\n\nHowever, it easy enough to remap a tasks NUMA mempolicy automatically when\na task is migrated, using the existing cpuset mechanism to trigger a\nrefresh of a tasks memory placement after its cpuset has changed. All that\nis needed is the old and new nodemask, and notice to the task that it needs\nto rebind its mempolicy. The tasks mems_allowed has the old mask, the\ntasks cpuset has the new mask, and the existing\ncpuset_update_current_mems_allowed() mechanism provides the notice. The\nbitmap/cpumask/nodemask remap operators provide the cpuset relative\ncalculations.\n\nThis patch leaves open a couple of issues:\n\n 1) Updating vma and shmfs/tmpfs/hugetlbfs memory policies:\n\n These mempolicies may reference nodes outside of those allowed to\n the current task by its cpuset. Tasks are migrated as part of jobs,\n which reside on what might be several cpusets in a subtree. When such\n a job is migrated, all NUMA memory policy references to nodes within\n that cpuset subtree should be translated, and references to any nodes\n outside that subtree should be left untouched. A future patch will\n provide the cpuset mechanism needed to mark such subtrees. With that\n patch, we will be able to correctly migrate these other memory policies\n across a job migration.\n\n 2) Updating cpuset, affinity and memory policies in user space:\n\n This is harder. Any placement state stored in user space using\n system-wide numbering will be invalidated across a migration. More\n work will be required to provide user code with a migration-safe means\n to manage its cpuset relative placement, while preserving the current\n API\u0027s that pass system wide numbers, not cpuset relative numbers across\n the kernel-user boundary.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "18a19cb3047e454ee5ecbc35d7acf3f8e09e0466", "tree": "ad91d0024d886bdd207ba72e875e736e833de616", "parents": [ "053199edf54f685e7dea765b60d4d5e9070dadec" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Oct 30 15:02:31 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:21 2005 -0800" }, "message": "[PATCH] cpusets: simple rename\n\nAdd support for renaming cpusets. Only allow simple rename of cpuset\ndirectories in place. Don\u0027t allow moving cpusets elsewhere in hierarchy or\nrenaming the special cpuset files in each cpuset directory.\n\nThe usefulness of this simple rename became apparent when developing task\nmigration facilities. It allows building a second cpuset hierarchy using\nnew names and containing new CPUs and Memory Nodes, moving tasks from the\nold to the new cpusets, removing the old cpusets, and then renaming the new\ncpusets to be just like the old names, so that any knowledge that the tasks\nhad of their cpuset names will still be valid.\n\nLeaf node cpusets can be migrated to other CPUs or Memory Nodes by just\nupdating their \u0027cpus\u0027 and \u0027mems\u0027 files, but because no cpuset can contain\nCPUs or Nodes not in its parent cpuset, one cannot do this in a cpuset\nhierarchy without first expanding all the non-leaf cpusets to contain the\nunion of both the old and new CPUs and Nodes, which would obfuscate the\none-to-one migration of a task from one cpuset to another required to\ncorrectly migrate the physical page frames currently allocated to that\ntask.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "053199edf54f685e7dea765b60d4d5e9070dadec", "tree": "a2d12a8b7f07b59048da992e7ae9405bc4ee292b", "parents": [ "5aa15b5f27fc2c404530c6c8eabdb8437deb3163" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Oct 30 15:02:30 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:21 2005 -0800" }, "message": "[PATCH] cpusets: dual semaphore locking overhaul\n\nOverhaul cpuset locking. Replace single semaphore with two semaphores.\n\nThe suggestion to use two locks was made by Roman Zippel.\n\nBoth locks are global. Code that wants to modify cpusets must first\nacquire the exclusive manage_sem, which allows them read-only access to\ncpusets, and holds off other would-be modifiers. Before making actual\nchanges, the second semaphore, callback_sem must be acquired as well. Code\nthat needs only to query cpusets must acquire callback_sem, which is also a\nglobal exclusive lock.\n\nThe earlier problems with double tripping are avoided, because it is\nallowed for holders of manage_sem to nest the second callback_sem lock, and\nonly callback_sem is needed by code called from within __alloc_pages(),\nwhere the double tripping had been possible.\n\nThis is not quite the same as a normal read/write semaphore, because\nobtaining read-only access with intent to change must hold off other such\nattempts, while allowing read-only access w/o such intention. Changing\ncpusets involves several related checks and changes, which must be done\nwhile allowing read-only queries (to avoid the double trip), but while\nensuring nothing changes (holding off other would be modifiers.)\n\nThis overhaul of cpuset locking also makes careful use of task_lock() to\nguard access to the task-\u003ecpuset pointer, closing a couple of race\nconditions noticed while reading this code (thanks, Roman). I\u0027ve never\nseen these races fail in any use or test.\n\nSee further the comments in the code.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5aa15b5f27fc2c404530c6c8eabdb8437deb3163", "tree": "914f0b33f5190bd0183cde2e9f6da552d3d1d7aa", "parents": [ "f35f31d7ed0150f9865619f21b5050c91b46c03f" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Oct 30 15:02:28 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:21 2005 -0800" }, "message": "[PATCH] cpusets: remove depth counted locking hack\n\nRemove a rather hackish depth counter on cpuset locking. The depth counter\nwas avoiding a possible double trip on the global cpuset_sem semaphore. It\nworked, but now an improved version of cpuset locking is available, to come\nin the next patch, using two global semaphores.\n\nThis patch reverses \"cpuset semaphore depth check deadlock fix\"\n\nThe kernel still works, even after this patch, except for some rare and\ndifficult to reproduce race conditions when agressively creating and\ndestroying cpusets marked with the notify_on_release option, on very large\nsystems.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f35f31d7ed0150f9865619f21b5050c91b46c03f", "tree": "fb33df4eb302de0d249682e77d3d07bd6f6611ba", "parents": [ "e9543659715602e3180f00a227bb6db34141ac41" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Oct 30 15:02:27 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:21 2005 -0800" }, "message": "[PATCH] cpuset cleanup\n\nRemove one more useless line from cpuset_common_file_read().\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4eb9af2a8a431a832830f986fead7332dab27229", "tree": "424d265f46c7d2e545235117e1b5dcfb074b5228", "parents": [ "33430dc593f866f5d67ff6a6213b6dd6d7ea3ce1" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:02:21 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:20 2005 -0800" }, "message": "[PATCH] posix-timers: use schedule_timeout() in common_nsleep()\n\ncommon_nsleep() reimplements schedule_timeout_interruptible() for unknown\nreason.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6dd69f1061bfdeca230509b173438e0731bff767", "tree": "66094a2fdf02fd808b0661cc2a26c6ff64d1c590", "parents": [ "19a4fcb531659f2f7d18b5d04cee039176e9540d" ], "author": { "name": "Vadim Lobanov", "email": "vlobanov@speakeasy.net", "time": "Sun Oct 30 15:02:18 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:19 2005 -0800" }, "message": "[PATCH] Unify sys_tkill() and sys_tgkill()\n\nThe majority of the sys_tkill() and sys_tgkill() function code is\nduplicated between the two of them. This patch pulls the duplication out\ninto a separate function -- do_tkill() -- and lets sys_tkill() and\nsys_tgkill() be simple wrappers around it. This should make it easier to\nmaintain in light of future changes.\n\nSigned-off-by: Vadim Lobanov \u003cvlobanov@speakeasy.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "19a4fcb531659f2f7d18b5d04cee039176e9540d", "tree": "30e0636d6163a5c0c3a4ad41c2d5f49cd858b457", "parents": [ "932aeafbe8521a9a9d790152d66020e0fef2029b" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:02:17 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:19 2005 -0800" }, "message": "[PATCH] kill sigqueue-\u003elock\n\nThis lock is used in sigqueue_free(), but it is always equal to\ncurrent-\u003esighand-\u003esiglock, so we don\u0027t need to keep it in the struct\nsigqueue.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dfc4f94d2ff95fc92127d3e512c1df7cab274fb8", "tree": "c9ed4d74147a3674816f59cf9fbeb69e2cb6afe4", "parents": [ "89ada67917f516212452443a56b9fd3b65b74dc7" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sun Oct 30 15:02:03 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:18 2005 -0800" }, "message": "[PATCH] remove timer debug field\n\nRemove timer_list.magic and associated debugging code.\n\nI originally added this when a spinlock was added to timer_list - this meant\nthat an all-zeroes timer became illegal and init_timer() was required.\n\nThat spinlock isn\u0027t even there any more, although timer.base must now be\ninitialised.\n\nI\u0027ll keep this debugging code in -mm.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "89ada67917f516212452443a56b9fd3b65b74dc7", "tree": "00986fd653bf1973a70ae894f503b3b2352943b5", "parents": [ "d61780c0d384939ef31c46b47442854d5def4623" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Sun Oct 30 15:01:59 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:18 2005 -0800" }, "message": "[PATCH] Use alloc_percpu to allocate workqueues locally\n\nThis patch makes the workqueus use alloc_percpu instead of an array. The\nworkqueues are placed on nodes local to each processor.\n\nThe workqueue structure can grow to a significant size on a system with\nlots of processors if this patch is not applied. 64 bit architectures with\nall debugging features enabled and configured for 512 processors will not\nbe able to boot without this patch.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a5a0d52c7305cb3629ef0cc9e2e0e106869e1907", "tree": "11be2b00bc455e8f0dbe280b64932bdb7369bde0", "parents": [ "1bb34a412750291e4e5e9f1d0fe7ae1b7e976098" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sun Oct 30 15:01:42 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:18 2005 -0800" }, "message": "[PATCH] ntp whitespace cleanup\n\nFix bizarre 4-space coding style in the NTP code.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1bb34a412750291e4e5e9f1d0fe7ae1b7e976098", "tree": "00d481a2ff4302f444fbf7c31e5e661f79dc85a9", "parents": [ "9c0cbd54ce0397017a823484f9a8054ab369b8a2" ], "author": { "name": "john stultz", "email": "johnstul@us.ibm.com", "time": "Sun Oct 30 15:01:42 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:18 2005 -0800" }, "message": "[PATCH] NTP shift_right cleanup\n\nCreate a macro shift_right() that avoids the numerous ugly conditionals in the\nNTP code that look like:\n\n if(a \u003c 0)\n b \u003d -(-a \u003e\u003e shift);\n else\n b \u003d a \u003e\u003e shift;\n\nReplacing it with:\n\n b \u003d shift_right(a, shift);\n\nThis should have zero effect on the logic, however it should probably have\na bit of testing just to be sure.\n\nAlso replace open-coded min/max with the macros.\n\nSigned-off-by : John Stultz \u003cjohnstul@us.ibm.com\u003e\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "61e1a9ea4b425eb8c3b4965c35fe953bd881728f", "tree": "2dcf017eedd4a72698593c878aff3ae31e3a6b09", "parents": [ "83521d3eb8dd2dfb04dd78b4733e9766f61bb47e" ], "author": { "name": "Alan Stern", "email": "stern@rowland.harvard.edu", "time": "Sun Oct 30 15:01:40 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:17 2005 -0800" }, "message": "[PATCH] Add kthread_stop_sem()\n\nEnhance the kthread API by adding kthread_stop_sem, for use in stopping\nthreads that spend their idle time waiting on a semaphore.\n\nSigned-off-by: Alan Stern \u003cstern@rowland.harvard.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a8db2db1e6a8d323d87a67c5391d48fe2b97faf5", "tree": "0aa5fb9f80e4a476e097337104a3e1f94f39a96e", "parents": [ "9e4e23bccb127fac109e765dfb7f9372661cb415" ], "author": { "name": "Oleg Nesterov", "email": "oleg@tv-sign.ru", "time": "Sun Oct 30 15:01:38 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:17 2005 -0800" }, "message": "[PATCH] introduce setup_timer() helper\n\nEvery user of init_timer() also needs to initialize -\u003efunction and -\u003edata\nfields. This patch adds a simple setup_timer() helper for that.\n\nThe schedule_timeout() is patched as an example of usage.\n\nSigned-off-by: Oleg Nesterov \u003coleg@tv-sign.ru\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "eb9289eb20df6b54214c45ac7c6bf5179a149026", "tree": "dac51cecdd94e0c7273c990259ddd800057311b9", "parents": [ "0245b3e787dc3267a915e1f56419e7e9c197e148" ], "author": { "name": "Shaohua Li", "email": "shaohua.li@intel.com", "time": "Sun Oct 30 15:00:01 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:15 2005 -0800" }, "message": "[PATCH] introduce .valid callback for pm_ops\n\nAdd pm_ops.valid callback, so only the available pm states show in\n/sys/power/state. And this also makes an earlier states error report at\nenter_state before we do actual suspend/resume.\n\nSigned-off-by: Shaohua Li\u003cshaohua.li@intel.com\u003e\nAcked-by: Pavel Machek\u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0245b3e787dc3267a915e1f56419e7e9c197e148", "tree": "96a366f2fc732f42d4993dd177982e6b657d83aa", "parents": [ "2e32a43efdc8175579cc91e8b620ac331376a437" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 30 15:00:01 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:15 2005 -0800" }, "message": "[PATCH] swsusp: two simplifications\n\nThe following patch simplifies the progress meter in disk.c:free_some_memory()\nand makes disk.c:pm_suspend_disk() call device_resume() explicitly in the\nsuspend path.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2e32a43efdc8175579cc91e8b620ac331376a437", "tree": "fd46c6cf28d437fc53acc72cff03d2d796d834ff", "parents": [ "de491861e1457c31aed6d44d96afb549365ff790" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 30 15:00:00 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:15 2005 -0800" }, "message": "[PATCH] swsusp: get rid of unnecessary wrapper function\n\nThe following patch merges two functions in a trivial way.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nAcked-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "de491861e1457c31aed6d44d96afb549365ff790", "tree": "9480b80bab7d5f2ef141249b70a6beffde0c7599", "parents": [ "96bc7aec20b50761822f96130127b8e31e168af1" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Sun Oct 30 14:59:59 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] swsusp: cleanups\n\nReduce number of ifdefs somehow, and fix whitespace a bit. No real code\nchanges.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "96bc7aec20b50761822f96130127b8e31e168af1", "tree": "f1bb9562fcec1764a39b1b01423770d4ddbcc1dc", "parents": [ "2c1b4a5ca48831595979a850f40ced8e7da026f8" ], "author": { "name": "Pavel Machek", "email": "pavel@ucw.cz", "time": "Sun Oct 30 14:59:58 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] swsusp: remove unneccessary includes\n\nCleanup comments and remove unneccessary includes.\n\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2c1b4a5ca48831595979a850f40ced8e7da026f8", "tree": "06fe8a400df8c5166c7f47ca2c30a584473f1170", "parents": [ "a0f496517f3e28d651d0cbbcf2d4fb701ed6957e" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 30 14:59:58 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] swsusp: rework memory freeing on resume\n\nThe following patch makes swsusp use the PG_nosave and PG_nosave_free flags to\nmark pages that should be freed in case of an error during resume.\n\nThis allows us to simplify the code and to use swsusp_free() in all of the\nswsusp\u0027s resume error paths, which makes them actually work.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a0f496517f3e28d651d0cbbcf2d4fb701ed6957e", "tree": "39ab8b387061cc5737c542f6cddea7320b82970b", "parents": [ "25761b6eb7b33823bcfff6bfe2a015badcd76fb8" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 30 14:59:57 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] swsusp: reduce the use of global variables\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "25761b6eb7b33823bcfff6bfe2a015badcd76fb8", "tree": "a25841a3f4c4cf087ce75c0907c00966f19d339a", "parents": [ "351619baf9878731b4272fa10dda0f84f5582241" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 30 14:59:56 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] swsusp: move snapshot functionality to separate file\n\nThe following patch moves the functionality of swsusp related to creating and\nhandling the snapshot of memory to a separate file, snapshot.c\n\nThis should enable us to untangle the code in the future and eventually to\nimplement some parts of swsusp.c in the user space.\n\nThe patch does not change the code.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "351619baf9878731b4272fa10dda0f84f5582241", "tree": "62bf45ba8368dddde3adb501a37c428ead5feff7", "parents": [ "c32b6b8e524d2c337767d312814484d9289550cf" ], "author": { "name": "Rafael J. Wysocki", "email": "rjw@sisk.pl", "time": "Sun Oct 30 14:59:55 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] swsusp: rework image freeing\n\nThe following patch makes swsusp use PG_nosave and PG_nosave_free flags to\nmark pages that should be freed after the state of the system has been\nrestored from the image (or in case of an error during suspend).\n\nThis allows us to avoid storing metadata in swap twice and to reduce the\namount of memory needed by swsusp.  Additionally, it allows us to simplify\nthe code by removing a couple of functions that are no longer necessary.\n\nSigned-off-by: Rafael J. Wysocki \u003crjw@sisk.pl\u003e\nSigned-off-by: Pavel Machek \u003cpavel@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c32b6b8e524d2c337767d312814484d9289550cf", "tree": "02e634b0b48db6eccc8774369366daa1893921ea", "parents": [ "d434fca737bee0862625c2377b987a7713b6b487" ], "author": { "name": "Ashok Raj", "email": "ashok.raj@intel.com", "time": "Sun Oct 30 14:59:54 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:14 2005 -0800" }, "message": "[PATCH] create and destroy cpufreq sysfs entries based on cpu notifiers\n\ncpufreq entries in sysfs should only be populated when CPU is online state.\n When we either boot with maxcpus\u003dx and then boot the other cpus by echoing\nto sysfs online file, these entries should be created and destroyed when\nCPU_DEAD is notified. Same treatement as cache entries under sysfs.\n\nWe place the processor in the lowest frequency, so hw managed P-State\ntransitions can still work on the other threads to save power.\n\nPrimary goal was to just make these directories appear/disapper dynamically.\n\nThere is one in this patch i had to do, which i really dont like myself but\nprobably best if someone handling the cpufreq infrastructure could give\nthis code right treatment if this is not acceptable. I guess its probably\ngood for the first cut.\n\n- Converting lock_cpu_hotplug()/unlock_cpu_hotplug() to disable/enable preempt.\n The locking was smack in the middle of the notification path, when the\n hotplug is already holding the lock. I tried another solution to avoid this\n so avoid taking locks if we know we are from notification path. The solution\n was getting very ugly and i decided this was probably good for this iteration\n until someone who understands cpufreq could do a better job than me.\n\n(akpm: export cpucontrol to GPL modules: drivers/cpufreq/cpufreq_stats.c now\ndoes lock_cpu_hotplug())\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Venkatesh Pallipadi \u003cvenkatesh.pallipadi@intel.com\u003e\nCc: Dave Jones \u003cdavej@codemonkey.org.uk\u003e\nCc: Zwane Mwaikambo \u003czwane@holomorphy.com\u003e\nCc: Greg KH \u003cgreg@kroah.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4276d32260662d5401a15a0a46e506fb5c8ab563", "tree": "5968cda01076da10592729986975c7952d18862e", "parents": [ "6e9d6b8ee4e0c37d3952256e6472c57490d6780d" ], "author": { "name": "Brian Gerst", "email": "bgerst@didntduck.org", "time": "Sun Oct 30 14:59:18 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Oct 30 17:37:10 2005 -0800" }, "message": "[PATCH] Remove redundant configs.o\n\nSince CONFIG_IKCONFIG_PROC already depends on CONFIG_IKCONFIG, adding\nconfigs.o again is redundant.\n\nSigned-off-by: Brian Gerst \u003cbgerst@didntduck.org\u003e\nCc: Sam Ravnborg \u003csam@ravnborg.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4c21e2f2441dc5fbb957b030333f5a3f2d02dea7", "tree": "1f76d33bb1d76221c6424bc5fed080a4f91349a6", "parents": [ "b38c6845b695141259019e2b7c0fe6c32a6e720d" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Oct 29 18:16:40 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:42 2005 -0700" }, "message": "[PATCH] mm: split page table lock\n\nChristoph Lameter demonstrated very poor scalability on the SGI 512-way, with\na many-threaded application which concurrently initializes different parts of\na large anonymous area.\n\nThis patch corrects that, by using a separate spinlock per page table page, to\nguard the page table entries in that page, instead of using the mm\u0027s single\npage_table_lock. (But even then, page_table_lock is still used to guard page\ntable allocation, and anon_vma allocation.)\n\nIn this implementation, the spinlock is tucked inside the struct page of the\npage table page: with a BUILD_BUG_ON in case it overflows - which it would in\nthe case of 32-bit PA-RISC with spinlock debugging enabled.\n\nSplitting the lock is not quite for free: another cacheline access. Ideally,\nI suppose we would use split ptlock only for multi-threaded processes on\nmulti-cpu machines; but deciding that dynamically would have its own costs.\nSo for now enable it by config, at some number of cpus - since the Kconfig\nlanguage doesn\u0027t support inequalities, let preprocessor compare that with\nNR_CPUS. But I don\u0027t think it\u0027s worth being user-configurable: for good\ntesting of both split and unsplit configs, split now at 4 cpus, and perhaps\nchange that to 8 later.\n\nThere is a benefit even for singly threaded processes: kswapd can be attacking\none part of the mm while another part is busy faulting.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "deceb6cd17e6dfafe4c4f81b1b4153bc41b2cb70", "tree": "2a722f50e8edef8609a49f65bfcb222e499c44cc", "parents": [ "c34d1b4d165c67b966bca4aba026443d7ff161eb" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Oct 29 18:16:33 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:41 2005 -0700" }, "message": "[PATCH] mm: follow_page with inner ptlock\n\nFinal step in pushing down common core\u0027s page_table_lock. follow_page no\nlonger wants caller to hold page_table_lock, uses pte_offset_map_lock itself;\nand so no page_table_lock is taken in get_user_pages itself.\n\nBut get_user_pages (and get_futex_key) do then need follow_page to pin the\npage for them: take Daniel\u0027s suggestion of bitflags to follow_page.\n\nNeed one for WRITE, another for TOUCH (it was the accessed flag before:\nvanished along with check_user_page_readable, but surely get_numa_maps is\nwrong to mark every page it finds as accessed), another for GET.\n\nAnd another, ANON to dispose of untouched_anonymous_page: it seems silly for\nthat to descend a second time, let follow_page observe if there was no page\ntable and return ZERO_PAGE if so. Fix minor bug in that: check VM_LOCKED -\nmake_pages_present ought to make readonly anonymous present.\n\nGive get_numa_maps a cond_resched while we\u0027re there.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c74df32c724a1652ad8399b4891bb02c9d43743a", "tree": "5a79d56fdcf7dc2053a277dbf6db7c3b339e9659", "parents": [ "1bb3630e89cb8a7b3d3807629c20c5bad88290ff" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Oct 29 18:16:23 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:40 2005 -0700" }, "message": "[PATCH] mm: ptd_alloc take ptlock\n\nSecond step in pushing down the page_table_lock. Remove the temporary\nbridging hack from __pud_alloc, __pmd_alloc, __pte_alloc: expect callers not\nto hold page_table_lock, whether it\u0027s on init_mm or a user mm; take\npage_table_lock internally to check if a racing task already allocated.\n\nConvert their callers from common code. But avoid coming back to change them\nagain later: instead of moving the spin_lock(\u0026mm-\u003epage_table_lock) down,\nswitch over to new macros pte_alloc_map_lock and pte_unmap_unlock, which\nencapsulate the mapping+locking and unlocking+unmapping together, and in the\nend may use alternatives to the mm page_table_lock itself.\n\nThese callers all hold mmap_sem (some exclusively, some not), so at no level\ncan a page table be whipped away from beneath them; and pte_alloc uses the\n\"atomic\" pmd_present to test whether it needs to allocate. It appears that on\nall arches we can safely descend without page_table_lock.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "365e9c87a982c03d0af3886e29d877f581b59611", "tree": "d06c1918ca9fe6677d7e4e869555e095004274f7", "parents": [ "861f2fb8e796022b4928cab9c74fca6681a1c557" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Oct 29 18:16:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:39 2005 -0700" }, "message": "[PATCH] mm: update_hiwaters just in time\n\nupdate_mem_hiwater has attracted various criticisms, in particular from those\nconcerned with mm scalability. Originally it was called whenever rss or\ntotal_vm got raised. Then many of those callsites were replaced by a timer\ntick call from account_system_time. Now Frank van Maarseveen reports that to\nbe found inadequate. How about this? Works for Frank.\n\nReplace update_mem_hiwater, a poor combination of two unrelated ops, by macros\nupdate_hiwater_rss and update_hiwater_vm. Don\u0027t attempt to keep\nmm-\u003ehiwater_rss up to date at timer tick, nor every time we raise rss (usually\nby 1): those are hot paths. Do the opposite, update only when about to lower\nrss (usually by many), or just before final accounting in do_exit. Handle\nmm-\u003ehiwater_vm in the same way, though it\u0027s much less of an issue. Demand\nthat whoever collects these hiwater statistics do the work of taking the\nmaximum with rss or total_vm.\n\nAnd there has been no collector of these hiwater statistics in the tree. The\nnew convention needs an example, so match Frank\u0027s usage by adding a VmPeak\nline above VmSize to /proc/\u003cpid\u003e/status, and also a VmHWM line above VmRSS\n(High-Water-Mark or High-Water-Memory).\n\nThere was a particular anomaly during mremap move, that hiwater_vm might be\ncaptured too high. A fleeting such anomaly remains, but it\u0027s quickly\ncorrected now, whereas before it would stick.\n\nWhat locking? None: if the app is racy then these statistics will be racy,\nit\u0027s not worth any overhead to make them exact. But whenever it suits,\nhiwater_vm is updated under exclusive mmap_sem, and hiwater_rss under\npage_table_lock (for now) or with preemption disabled (later on): without\ngoing to any trouble, minimize the time between reading current values and\nupdating, to minimize those occasions when a racing thread bumps a count up\nand back down in between.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b5810039a54e5babf428e9a1e89fc1940fabff11", "tree": "835836cb527ec9bd525f93eb7e016f3dfb8c8ae2", "parents": [ "f9c98d0287de42221c624482fd4f8d485c98ab22" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Oct 29 18:16:12 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:39 2005 -0700" }, "message": "[PATCH] core remove PageReserved\n\nRemove PageReserved() calls from core code by tightening VM_RESERVED\nhandling in mm/ to cover PageReserved functionality.\n\nPageReserved special casing is removed from get_page and put_page.\n\nAll setting and clearing of PageReserved is retained, and it is now flagged\nin the page_alloc checks to help ensure we don\u0027t introduce any refcount\nbased freeing of Reserved pages.\n\nMAP_PRIVATE, PROT_WRITE of VM_RESERVED regions is tentatively being\ndeprecated. We never completely handled it correctly anyway, and is be\nreintroduced in future if required (Hugh has a proof of concept).\n\nOnce PageReserved() calls are removed from kernel/power/swsusp.c, and all\narch/ and driver code, the Set and Clear calls, and the PG_reserved bit can\nbe trivially removed.\n\nLast real user of PageReserved is swsusp, which uses PageReserved to\ndetermine whether a struct page points to valid memory or not. This still\nneeds to be addressed (a generic page_is_ram() should work).\n\nA last caveat: the ZERO_PAGE is now refcounted and managed with rmap (and\nthus mapcounted and count towards shared rss). These writes to the struct\npage could cause excessive cacheline bouncing on big systems. There are a\nnumber of ways this could be addressed if it is an issue.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\n\nRefcount bug fix for filemap_xip.c\n\nSigned-off-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "7ee78232501ea9de2b6c8f10d32c9a0fee541357" }