)]}' { "log": [ { "commit": "84759c6d18c5144432781ddca037d929ee9db8a5", "tree": "a2f7507dbd760ad87d607c9e80a4c79d96222502", "parents": [ "a937536b868b8369b98967929045f1df54234323" ], "author": { "name": "Kent Overstreet", "email": "koverstreet@google.com", "time": "Wed Sep 21 21:43:05 2011 -0700" }, "committer": { "name": "Kent Overstreet", "email": "koverstreet@google.com", "time": "Sat Mar 23 15:53:52 2013 -0700" }, "message": "Revert \"rw_semaphore: remove up/down_read_non_owner\"\n\nThis reverts commit 11b80f459adaf91a712f95e7734a17655a36bf30.\n\nBcache needs rw semaphores for cache coherency in writeback mode -\nwrites have to take a read lock on a per cache device rw sem, and\nrelease it when the bio completes.\n\nBut since this is for bios it\u0027s naturally not in the context of the\nprocess that originally took the lock.\n\nSigned-off-by: Kent Overstreet \u003ckoverstreet@google.com\u003e\nCC: Christoph Hellwig \u003chch@infradead.org\u003e\nCC: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "1b963c81b14509e330e0fe3218b645ece2738dc5", "tree": "5179a29d62e7283c8a1d764e7e320490c4352aeb", "parents": [ "fef6c12e8874279ebebfa4cd58d735f6adce3ed1" ], "author": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Fri Jan 11 14:31:56 2013 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 11 14:54:55 2013 -0800" }, "message": "lockdep, rwsem: provide down_write_nest_lock()\n\ndown_write_nest_lock() provides a means to annotate locking scenario\nwhere an outer lock is guaranteed to serialize the order nested locks\nare being acquired.\n\nThis is analogoue to already existing mutex_lock_nest_lock() and\nspin_lock_nest_lock().\n\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Ingo Molnar \u003cmingo@kernel.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nTested-by: Sedat Dilek \u003csedat.dilek@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9ffc93f203c18a70623f21950f1dd473c9ec48cd", "tree": "1eb3536ae183b0bfbf7f5152a6fe4f430ae881c2", "parents": [ "96f951edb1f1bdbbc99b0cd458f9808bb83d58ae" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Mar 28 18:30:03 2012 +0100" }, "committer": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Mar 28 18:30:03 2012 +0100" }, "message": "Remove all #inclusions of asm/system.h\n\nRemove all #inclusions of asm/system.h preparatory to splitting and killing\nit. Performed with the following command:\n\nperl -p -i -e \u0027s!^#\\s*include\\s*\u003casm/system[.]h\u003e.*\\n!!\u0027 `grep -Irl \u0027^#\\s*include\\s*\u003casm/system[.]h\u003e\u0027 *`\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\n" }, { "commit": "9984de1a5a8a96275fcab818f7419af5a3c86e71", "tree": "1935d411752707a1621c5caf64f75dfe105beb3a", "parents": [ "7c77509c542927ee2a3c8812fad84957e51bf67d" ], "author": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Mon May 23 14:51:41 2011 -0400" }, "committer": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Mon Oct 31 09:20:12 2011 -0400" }, "message": "kernel: Map most files to use export.h instead of module.h\n\nThe changed files were only including linux/module.h for the\nEXPORT_SYMBOL infrastructure, and nothing else. Revector them\nonto the isolated export header for faster compile times.\n\nNothing to see here but a whole lot of instances of:\n\n -#include \u003clinux/module.h\u003e\n +#include \u003clinux/export.h\u003e\n\nThis commit is only changing the kernel dir; next targets\nwill probably be mm, fs, the arch dirs, etc.\n\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n" }, { "commit": "60063497a95e716c9a689af3be2687d261f115b4", "tree": "6ce0d68db76982c53df46aee5f29f944ebf2c320", "parents": [ "148817ba092f9f6edd35bad3c6c6b8e8f90fe2ed" ], "author": { "name": "Arun Sharma", "email": "asharma@fb.com", "time": "Tue Jul 26 16:09:06 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jul 26 16:49:47 2011 -0700" }, "message": "atomic: use \u003clinux/atomic.h\u003e\n\nThis allows us to move duplicated code in \u003casm/atomic.h\u003e\n(atomic_inc_not_zero() for now) to \u003clinux/atomic.h\u003e\n\nSigned-off-by: Arun Sharma \u003casharma@fb.com\u003e\nReviewed-by: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: David Miller \u003cdavem@davemloft.net\u003e\nCc: Eric Dumazet \u003ceric.dumazet@gmail.com\u003e\nAcked-by: Mike Frysinger \u003cvapier@gentoo.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "11b80f459adaf91a712f95e7734a17655a36bf30", "tree": "b325ce2cb09cbe9e7d98879c71054621dbb97c3c", "parents": [ "bd5fe6c5eb9c548d7f07fe8f89a150bb6705e8e3" ], "author": { "name": "Christoph Hellwig", "email": "hch@infradead.org", "time": "Fri Jun 24 14:29:44 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Jul 20 20:47:47 2011 -0400" }, "message": "rw_semaphore: remove up/down_read_non_owner\n\nNow that the last users is gone these can be removed.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "c7af77b584b02d3e321b00203a618a9c93782121", "tree": "e7a8d5995e34065aa1bd610cb92684c5e5856119", "parents": [ "051a1d1afa47206e23ae03f781c6795ce870e3d5" ], "author": { "name": "Livio Soares", "email": "livio@eecg.toronto.edu", "time": "Tue Dec 18 15:21:13 2007 +0100" }, "committer": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Tue Dec 18 15:21:13 2007 +0100" }, "message": "sched: mark rwsem functions as __sched for wchan/profiling\n\nThis following commit\n\nhttp://git.kernel.org/?p\u003dlinux/kernel/git/torvalds/linux-2.6.git;a\u003dcommitdiff;h\u003dfdf8cb0909b531f9ae8f9b9d7e4eb35ba3505f07\n\nun-inlined a low-level rwsem function, but did not mark it as __sched.\nThe result is that it now shows up as thread wchan (which also affects\n/proc/profile stats). The following simple patch fixes this by properly\nmarking rwsem_down_failed_common() as a __sched function.\n\nAlso in this patch, which is up for discussion, marks down_read() and\ndown_write() proper as __sched. For profiling, it is pretty much\nuseless to know that a semaphore is beig help - it is necessary to know\n_which_ one. By going up another frame on the stack, the information\nbecomes much more useful.\n\nIn summary, the below change to lib/rwsem.c should be applied; the\nchanges to kernel/rwsem.c could be applied if other kernel hackers agree\nwith my proposal that down_read()/down_write() in the profile is not\nenough.\n\n[ akpm@linux-foundation.org: build fix ]\n\nSigned-off-by: Livio Soares \u003clivio@eecg.toronto.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "4fe87745a6722d42ff27a60768c77958fa1fc498", "tree": "adb116303fda951e0f7fc997db5de683e1bd8527", "parents": [ "c46261de0d98372112d8edf16f74ce418a268d46" ], "author": { "name": "Peter Zijlstra", "email": "a.p.zijlstra@chello.nl", "time": "Thu Jul 19 01:48:58 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Jul 19 10:04:49 2007 -0700" }, "message": "lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex\n\nCall the new lockstat tracking functions from the various lock primitives.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jason Baron \u003cjbaron@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "428e6ce023c5890cfecc8ad10335da3f28dbf893", "tree": "17c746035cf727bc5494b9116ae6034724aaede3", "parents": [ "644fd4f5de9ca147daeb6dc5f844b44ec3d58b47" ], "author": { "name": "Pavel Emelianov", "email": "xemul@sw.ru", "time": "Tue May 08 00:29:10 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue May 08 11:15:09 2007 -0700" }, "message": "Lockdep treats down_write_trylock like regular down_write\n\nThis causes constructions like\n\ndown_write(\u0026mm1-\u003emmap_sem);\nif (down_write_trylock(\u0026mm2-\u003emmap_sem)) {\n ...\n up_write(\u0026mm2-\u003emmap_sem);\n}\nup_write(\u0026mm1-\u003emmap_sem);\n\ngenerate a lockdep warning about circular locking dependence.\n\nCall rwsem_acquire() with trylock set to 1.\n\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4ea2176dfa714882e88180b474e4cbcd888b70af", "tree": "7ff3810f6b8750c226234887bb3063d91e1d71c3", "parents": [ "a8f24a3978c5f82419e1c90dc90460731204f46f" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:53 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:04 2006 -0700" }, "message": "[PATCH] lockdep: prove rwsem locking correctness\n\nUse the lock validator framework to prove rwsem locking correctness.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@linux.intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c4e05116a2c4d8187127dbf77ab790aa57a47388", "tree": "58f07aed47ee4d30e9588d5a820c245faa163b09", "parents": [ "8b3db9c542e18b71d4820da4dd9401ee030feacb" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jul 03 00:24:29 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jul 03 15:27:01 2006 -0700" }, "message": "[PATCH] lockdep: clean up rwsems\n\nClean up rwsems.\n\nSigned-off-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" } ] }