)]}' { "log": [ { "commit": "54566b2c1594c2326a645a3551f9d989f7ba3c5e", "tree": "b373f3283fe5e197d0df29cd6b645c35adf1076c", "parents": [ "e687d691cb3790d25e31c74f5941fd7c565e9df5" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Sun Jan 04 12:00:53 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jan 04 13:33:20 2009 -0800" }, "message": "fs: symlink write_begin allocation context fix\n\nWith the write_begin/write_end aops, page_symlink was broken because it\ncould no longer pass a GFP_NOFS type mask into the point where the\nallocations happened. They are done in write_begin, which would always\nassume that the filesystem can be entered from reclaim. This bug could\ncause filesystem deadlocks.\n\nThe funny thing with having a gfp_t mask there is that it doesn\u0027t really\nallow the caller to arbitrarily tinker with the context in which it can be\ncalled. It couldn\u0027t ever be GFP_ATOMIC, for example, because it needs to\ntake the page lock. The only thing any callers care about is __GFP_FS\nanyway, so turn that into a single flag.\n\nAdd a new flag for write_begin, AOP_FLAG_NOFS. Filesystems can now act on\nthis flag in their write_begin function. Change __grab_cache_page to\naccept a nofs argument as well, to honour that flag (while we\u0027re there,\nchange the name to grab_cache_page_write_begin which is more instructive\nand does away with random leading underscores).\n\nThis is really a more flexible way to go in the end anyway -- if a\nfilesystem happens to want any extra allocations aside from the pagecache\nones in ints write_begin function, it may now use GFP_KERNEL (rather than\nGFP_NOFS) for common case allocations (eg. ocfs2_alloc_write_ctxt, for a\nrandom example).\n\n[kosaki.motohiro@jp.fujitsu.com: fix ubifs]\n[kosaki.motohiro@jp.fujitsu.com: fix fuse]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nReviewed-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: \u003cstable@kernel.org\u003e\t\t[2.6.28.x]\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n[ Cleaned up the calling convention: just pass in the AOP flags\n untouched to the grab_cache_page_write_begin() function. That\n just simplifies everybody, and may even allow future expansion of the\n logic. - Linus ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "15b4650e55e06d2cc05115767551cd3ace875431", "tree": "5542e01b8651140b707b6b9ebe81acb6e6ca41b3", "parents": [ "8360e81b5dd23c153301f08937a68fd67d9b46c0" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Oct 15 22:04:32 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Oct 16 11:21:48 2008 -0700" }, "message": "afs: convert to new aops\n\nCannot assume writes will fully complete, so this conversion goes the easy\nway and always brings the page uptodate before the write.\n\n[dhowells@redhat.com: style tweaks]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: David Howells \u003cdhowells@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": "529ae9aaa08378cfe2a4350bded76f32cc8ff0ce", "tree": "d3ae998f9876c72a83a022805103a92111852b21", "parents": [ "e9ba9698187ddbc0c5bfcf41de0349a662d23d02" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Sat Aug 02 12:01:03 2008 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 04 21:31:34 2008 -0700" }, "message": "mm: rename page trylock\n\nConverting page lock to new locking bitops requires a change of page flag\noperation naming, so we might as well convert it to something nicer\n(!TestSetPageLocked_Lock \u003d\u003e trylock_page, SetPageLocked \u003d\u003e set_page_locked).\n\nThis also facilitates lockdeping of page lock.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nAcked-by: Peter Zijlstra \u003cpeterz@infradead.org\u003e\nAcked-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nAcked-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4af3c9cc4fad54c3627e9afebf905aafde5690ed", "tree": "655364e458b8734a86c632316f4b5a1518529c60", "parents": [ "1a614f505193fcfc1b298643268a5db5b48e297f" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Tue Oct 16 23:29:23 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:55 2007 -0700" }, "message": "Drop some headers from mm.h\n\nmm.h doesn\u0027t use directly anything from mutex.h and backing-dev.h, so\nremove them and add them back to files which need them.\n\nCross-compile tested on many configs and archs.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@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": "c1206a2c6d87def4af5379e6fef64e928d882ab2", "tree": "388c36ab43b2f9d2cf463871866b0fa97aa4154b", "parents": [ "a4d63e729edad704af95e5f2a56e8c8eaaa5216b" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Tue Oct 16 23:26:41 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Oct 17 08:42:50 2007 -0700" }, "message": "fs/afs/: possible cleanups\n\nThis patch contains the following possible cleanups:\n- make the following needlessly global functions static:\n - rxrpc.c: afs_send_pages()\n - vlocation.c: afs_vlocation_queue_for_updates()\n - write.c: afs_writepages_region()\n- make the following needlessly global variables static:\n - mntpt.c: afs_mntpt_expiry_timeout\n - proc.c: afs_vlocation_states[]\n - server.c: afs_server_timeout\n - vlocation.c: afs_vlocation_timeout\n - vlocation.c: afs_vlocation_update_timeout\n- #if 0 the following unused function:\n - cell.c: afs_get_cell_maybe()\n- #if 0 the following unused variables:\n - callback.c: afs_vnode_update_timeout\n - cmservice.c: struct afs_cm_workqueue\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nAcked-by: David Howells \u003cdhowells@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": "bb33ed6345d6156484f39089aa8b52f44ce76609", "tree": "c27f2b0f62efceca5ab2289b524e688ec1c9d0f0", "parents": [ "1800782016fda6fbc9990a0227fec581070f23af" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Tue May 15 23:57:04 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 16 21:19:15 2007 -0700" }, "message": "AFS: Fix afs_prepare_write()\n\nafs_prepare_write() should not mark a page up to date if it only partially\nfills it in, in expectation of the caller filling in the rest prior to calling\ncommit_write(). commit_write(), however, should mark the page up to date.\n\nSigned-off-by: David Howells \u003cdhowells@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": "9d577b6a31a53a19d3b0fe414d645a61ef201846", "tree": "3e2523ac386e16eb0b125f3933b9ebfbd03aed65", "parents": [ "9393e1dc8e394bd59217178b26b2476dc43e8667" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Thu May 10 22:22:19 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri May 11 08:29:32 2007 -0700" }, "message": "AFS: fix interminable loop in afs_write_back_from_locked_page()\n\nFollowing bug was uncovered by compiling with \u0027-W\u0027 flag:\n\n CC [M] fs/afs/write.o\nfs/afs/write.c: In function ‘afs_write_back_from_locked_page’:\nfs/afs/write.c:398: warning: comparison of unsigned expression \u003e\u003d 0 is always true\n\nLoop variable \u0027n\u0027 is unsigned, so wraps around happily as far as I can\nsee. Trival fix attached (compile tested only).\n\nSigned-off-by: Mika Kukkonen \u003cmikukkon@iki.fi\u003e\nSigned-off-by: David Howells \u003cdhowells@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": "5bbf5d39f88af9e8173f7331a3741a8b3ff16a1c", "tree": "8bd516e07d2cb8b7578d9783ca45d0a23290dc23", "parents": [ "b9b1f8d5930a813879278d0cbfc8c658d6a038dc" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Thu May 10 03:15:23 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu May 10 09:26:52 2007 -0700" }, "message": "AFS: further write support fixes\n\nFurther fixes for AFS write support:\n\n (1) The afs_send_pages() outer loop must do an extra iteration if it ends\n with \u0027first \u003d\u003d last\u0027 because \u0027last\u0027 is inclusive in the page set\n otherwise it fails to send the last page and complete the RxRPC op under\n some circumstances.\n\n (2) Similarly, the outer loop in afs_pages_written_back() must also do an\n extra iteration if it ends with \u0027first \u003d\u003d last\u0027, otherwise it fails to\n clear PG_writeback on the last page under some circumstances.\n\nSigned-off-by: David Howells \u003cdhowells@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": "b9b1f8d5930a813879278d0cbfc8c658d6a038dc", "tree": "1879e0e70ce946e3519a205698f4dd1b34a3a7ea", "parents": [ "218e180e7ea5334e1f94121940ba82cd1f0f4e58" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Thu May 10 03:15:21 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu May 10 09:26:52 2007 -0700" }, "message": "AFS: write support fixes\n\nAFS write support fixes:\n\n (1) Support large files using the 64-bit file access operations if available\n on the server.\n\n (2) Use kmap_atomic() rather than kmap() in afs_prepare_page().\n\n (3) Don\u0027t do stuff in afs_writepage() that\u0027s done by the caller.\n\n[akpm@linux-foundation.org: fix right shift count \u003e\u003d width of type]\nSigned-off-by: David Howells \u003cdhowells@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": "31143d5d515ece617ffccb7df5ff75e4d1dfa120", "tree": "db28c26930f6a26db3e85da90f6668061425463a", "parents": [ "416351f28d2b31d15ff73e9aff699b2163704c95" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed May 09 02:33:46 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed May 09 12:30:50 2007 -0700" }, "message": "AFS: implement basic file write support\n\nImplement support for writing to regular AFS files, including:\n\n (1) write\n\n (2) truncate\n\n (3) fsync, fdatasync\n\n (4) chmod, chown, chgrp, utime.\n\nAFS writeback attempts to batch writes into as chunks as large as it can manage\nup to the point that it writes back 65535 pages in one chunk or it meets a\nlocked page.\n\nFurthermore, if a page has been written to using a particular key, then should\nanother write to that page use some other key, the first write will be flushed\nbefore the second is allowed to take place. If the first write fails due to a\nsecurity error, then the page will be scrapped and reread before the second\nwrite takes place.\n\nIf a page is dirty and the callback on it is broken by the server, then the\ndirty data is not discarded (same behaviour as NFS).\n\nShared-writable mappings are not supported by this patch.\n\n[akpm@linux-foundation.org: fix a bunch of warnings]\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ] }