)]}' { "log": [ { "commit": "a4ffdde6e56fdf8c34ddadc2674d6eb978083369", "tree": "0fa07df92d804cb7d0482135195e4835cb16403a", "parents": [ "b5fc510c48f631882ccec3c0f02a25d5b67de09f" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Jun 02 17:38:30 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Aug 09 16:47:44 2010 -0400" }, "message": "simplify checks for I_CLEAR/I_FREEING\n\nadd I_CLEAR instead of replacing I_FREEING with it. I_CLEAR is\nequivalent to I_FREEING for almost all code looking at either;\nit\u0027s there to keep track of having called clear_inode() exactly\nonce per inode lifetime, at some point after having set I_FREEING.\nI_CLEAR and I_FREEING never get set at the same time with the\ncurrent code, so we can switch to setting i_flags to I_FREEING | I_CLEAR\ninstead of I_CLEAR without loss of information. As the result of\nsuch change, checks become simpler and the amount of code that needs\nto know about I_CLEAR shrinks a lot.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "01a05b337a5b647909e1d6670f57e7202318a5fb", "tree": "7877f08db14877d06346c8e1ef52aa17f2483e93", "parents": [ "35cf7ba0b46dc3582a01c3860b14bff122662aa3" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Mar 23 06:06:58 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri May 21 18:31:16 2010 -0400" }, "message": "new helper: iterate_supers()\n\n... and switch the simple \"loop over superblocks and do something\"\nloops to it.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "35cf7ba0b46dc3582a01c3860b14bff122662aa3", "tree": "2b38e9333600f468f0c8371c657c02e3aa8ec43b", "parents": [ "79893c17b45dec0d3c25bc22d28d9f319b14f573" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Mar 22 21:13:53 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri May 21 18:31:16 2010 -0400" }, "message": "Bury __put_super_and_need_restart()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "6754af64641e8224c281ee5714e012e3ed41f701", "tree": "248a8c01aae46f98505d8c196393fae629f9691a", "parents": [ "8edd64bd6089e21f47dcdebb14b598b713213ddc" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Mar 22 20:09:33 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri May 21 18:31:15 2010 -0400" }, "message": "Convert simple loops over superblocks to list_for_each_entry_safe\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "551de6f34dfeefbeeadb32909c387d393114ecc8", "tree": "822af803e7e75ed476b0a176639c162e0395910d", "parents": [ "1712ac8fda7d8bc4dc921f5777b7423aacad7263" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Mar 22 19:36:35 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri May 21 18:31:14 2010 -0400" }, "message": "Leave superblocks on s_list until the end\n\nWe used to remove from s_list and s_instances at the same\ntime. So let\u0027s *not* do the former and skip superblocks\nthat have empty s_instances in the loops over s_list.\n\nThe next step, of course, will be to get rid of rescan logics\nin those loops.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "8d65af789f3e2cf4cfbdbf71a0f7a61ebcd41d38", "tree": "121df3bfffc7853ac6d2c514ad514d4a748a0933", "parents": [ "c0d0787b6d47d9f4d5e8bd321921104e854a9135" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Sep 23 15:57:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:21:04 2009 -0700" }, "message": "sysctl: remove \"struct file *\" argument of -\u003eproc_handler\n\nIt\u0027s unused.\n\nIt isn\u0027t needed -- read or write flag is already passed and sysctl\nshouldn\u0027t care about the rest.\n\nIt _was_ used in two places at arch/frv for some reason.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "286973552f051404abdb58dd9b2f8f7558efe4e5", "tree": "462cca28bdab729a09371ba6a53e0365cf36ad57", "parents": [ "82553a937f12352c26fe457510ebab3f512cd3fa" ], "author": { "name": "Mike Waychison", "email": "mikew@google.com", "time": "Tue Jun 16 15:32:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 16 19:47:43 2009 -0700" }, "message": "mm: remove __invalidate_mapping_pages variant\n\nRemove __invalidate_mapping_pages atomic variant now that its sole caller\ncan sleep (fixed in eccb95cee4f0d56faa46ef22fb94dd4a3578d3eb (\"vfs: fix\nlock inversion in drop_pagecache_sb()\")).\n\nThis fixes softlockups that can occur while in the drop_caches path.\n\nSigned-off-by: Mike Waychison \u003cmikew@google.com\u003e\nCc: Jan Kara \u003cjack@suse.cz\u003e\nCc: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: Dave Chinner \u003cdavid@fromorbit.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b6fac63cc1f52ec27f29fe6c6c8494a2ffac33fd", "tree": "78b4da8231fb80ea05fffc65c4647957b5a858fb", "parents": [ "33e5d76979cf01e3834814fe0aea569d1d602c1a" ], "author": { "name": "Wu Fengguang", "email": "fengguang.wu@intel.com", "time": "Thu Apr 02 16:56:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 02 19:04:48 2009 -0700" }, "message": "vfs: skip I_CLEAR state inodes\n\nclear_inode() will switch inode state from I_FREEING to I_CLEAR, and do so\n_outside_ of inode_lock. So any I_FREEING testing is incomplete without a\ncoupled testing of I_CLEAR.\n\nSo add I_CLEAR tests to drop_pagecache_sb(), generic_sync_sb_inodes() and\nadd_dquot_ref().\n\nMasayoshi MIZUMA discovered the bug in drop_pagecache_sb() and Jan Kara\nreminds fixing the other two cases.\n\nMasayoshi MIZUMA has a nice panic flow:\n\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n [process A] | [process B]\n | |\n | prune_icache() | drop_pagecache()\n | spin_lock(\u0026inode_lock) | drop_pagecache_sb()\n | inode-\u003ei_state |\u003d I_FREEING; | |\n | spin_unlock(\u0026inode_lock) | V\n | | | spin_lock(\u0026inode_lock)\n | V | |\n | dispose_list() | |\n | list_del() | |\n | clear_inode() | |\n | inode-\u003ei_state \u003d I_CLEAR | |\n | | | V\n | | | if (inode-\u003ei_state \u0026 (I_FREEING|I_WILL_FREE))\n | | | continue; \u003c\u003d\u003d\u003d\u003d NOT MATCH\n | | |\n | | | (DANGER from here on! Accessing disposing inode!)\n | | |\n | | | __iget()\n | | | list_move() \u003c\u003d\u003d\u003d\u003d\u003d PANIC on poisoned list !!\n V V |\n(time)\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\nReported-by: Masayoshi MIZUMA \u003cm.mizuma@jp.fujitsu.com\u003e\nReviewed-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Wu Fengguang \u003cfengguang.wu@intel.com\u003e\nCc: \u003cstable@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "aabb8fdb41128705fd1627f56fdd571e45fdbcdb", "tree": "bae6e9abf167cf20b9a2d3e5c38520d3f17b777d", "parents": [ "1bd7903560f1f713e85188a5aaf4d2428b6c8b50" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 11 13:17:36 2009 -0700" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Mar 27 14:44:05 2009 -0400" }, "message": "fs: avoid I_NEW inodes\n\nTo be on the safe side, it should be less fragile to exclude I_NEW inodes\nfrom inode list scans by default (unless there is an important reason to\nhave them).\n\nNormally they will get excluded (eg. by zero refcount or writecount etc),\nhowever it is a bit fragile for list walkers to know exactly what parts of\nthe inode state is set up and valid to test when in I_NEW. So along these\nlines, move I_NEW checks upward as well (sometimes taking I_FREEING etc\nchecks with them too -- this shouldn\u0027t be a problem should it?)\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "af065b8a19041554196971d8b6ae1459798d3b14", "tree": "33bfa04388cecfc50dda596302c3a5c91d0e2b64", "parents": [ "eccb95cee4f0d56faa46ef22fb94dd4a3578d3eb" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Tue Apr 29 00:59:39 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:05 2008 -0700" }, "message": "vfs: skip inodes without pages to free in drop_pagecache_sb()\n\nMany inodes have no pagecache, so we can avoid lots of lock-takings.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: Fengguang Wu \u003cwfg@mail.ustc.edu.cn\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "eccb95cee4f0d56faa46ef22fb94dd4a3578d3eb", "tree": "45f2586854927cef529730ae0c7196d931de0c94", "parents": [ "a8522509200b460443a7ca59138dc63bec1b690a" ], "author": { "name": "Jan Kara", "email": "jack@suse.cz", "time": "Tue Apr 29 00:59:37 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:05 2008 -0700" }, "message": "vfs: fix lock inversion in drop_pagecache_sb()\n\nFix longstanding lock inversion in drop_pagecache_sb by dropping inode_lock\nbefore calling __invalidate_mapping_pages(). We just have to make sure inode\nwon\u0027t go away from under us by keeping reference to it and putting the\nreference only after we have safely resumed the scan of the inode list. A bit\ntricky but not too bad...\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nCc: Fengguang Wu \u003cwfg@mail.ustc.edu.cn\u003e\nCc: David Chinner \u003cdgc@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "07d45da616f8514651360b502314fc9554223a03", "tree": "ac9c673a369f2ab3c0476179d4269a432a978a02", "parents": [ "f11b00f3bd89c91c684d56b2082d1b0241ff20ae" ], "author": { "name": "Adrian Bunk", "email": "bunk@kernel.org", "time": "Tue Apr 29 00:58:57 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Apr 29 08:06:00 2008 -0700" }, "message": "fs/drop_caches.c: make 2 functions static\n\nMake the following needlessly global functions static:\n\n- drop_pagecache()\n- drop_slab()\n\nSigned-off-by: Adrian Bunk \u003cbunk@kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fc9a07e7bf1a76e710f5df017abb07628db1781d", "tree": "bf2a288f97cbf9cfd82a4306a7d9c615abc7c887", "parents": [ "45426812d6b601430d560cb6049757b5b0bc71c4" ], "author": { "name": "Andrew Morton", "email": "akpm@linux-foundation.org", "time": "Sun Jul 15 23:38:14 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon Jul 16 09:05:36 2007 -0700" }, "message": "invalidate_mapping_pages(): add cond_resched\n\ninvalidate_mapping_pages() can sometimes take a long time (millions of pages\nto free). Long enough for the softlockup detector to trigger.\n\nWe used to have a cond_resched() in there but I took it out because the\ndrop_caches code calls invalidate_mapping_pages() under inode_lock.\n\nThe patch adds a nasty flag and puts the cond_resched() back.\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fc0ecff698165ae8e178efa086e0dd1f385206b1", "tree": "fc6274f0862bdd6749172201170b2f6a7ce4c4ff", "parents": [ "54bc485522afdac33de5504da2ea8cdcc690674e" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sat Feb 10 01:45:39 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Sun Feb 11 10:51:31 2007 -0800" }, "message": "[PATCH] remove invalidate_inode_pages()\n\nConvert all calls to invalidate_inode_pages() into open-coded calls to\ninvalidate_mapping_pages().\n\nLeave the invalidate_inode_pages() wrapper in place for now, marked as\ndeprecated.\n\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9d0243bca345d5ce25d3f4b74b7facb3a6df1232", "tree": "a3a0a763bf83a483282dc1c3caab587941a98fc2", "parents": [ "bec6b0c89b234090681a4516e20ac5debe3e7c59" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sun Jan 08 01:00:39 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:12:40 2006 -0800" }, "message": "[PATCH] drop-pagecache\n\nAdd /proc/sys/vm/drop_caches. When written to, this will cause the kernel to\ndiscard as much pagecache and/or reclaimable slab objects as it can. THis\noperation requires root permissions.\n\nIt won\u0027t drop dirty data, so the user should run `sync\u0027 first.\n\nCaveats:\n\na) Holds inode_lock for exorbitant amounts of time.\n\nb) Needs to be taught about NUMA nodes: propagate these all the way through\n so the discarding can be controlled on a per-node basis.\n\nThis is a debugging feature: useful for getting consistent results between\nfilesystem benchmarks. We could possibly put it under a config option, but\nit\u0027s less than 300 bytes.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ] }