)]}' { "log": [ { "commit": "454e2398be9b9fa30433fccc548db34d19aa9958", "tree": "1f61cb0c3716a33b661cfc8977e9beeb480a322c", "parents": [ "1ad5544098a69d7dc1fa508cbb17e13a7a952fd8" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Jun 23 02:02:57 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jun 23 07:42:45 2006 -0700" }, "message": "[PATCH] VFS: Permit filesystem to override root dentry on mount\n\nExtend the get_sb() filesystem operation to take an extra argument that\npermits the VFS to pass in the target vfsmount that defines the mountpoint.\n\nThe filesystem is then required to manually set the superblock and root dentry\npointers. For most filesystems, this should be done with simple_set_mnt()\nwhich will set the superblock pointer and then set the root dentry to the\nsuperblock\u0027s s_root (as per the old default behaviour).\n\nThe get_sb() op now returns an integer as there\u0027s now no need to return the\nsuperblock pointer.\n\nThis patch permits a superblock to be implicitly shared amongst several mount\npoints, such as can be done with NFS to avoid potential inode aliasing. In\nsuch a case, simple_set_mnt() would not be called, and instead the mnt_root\nand mnt_sb would be set directly.\n\nThe patch also makes the following changes:\n\n (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount\n pointer argument and return an integer, so most filesystems have to change\n very little.\n\n (*) If one of the convenience function is not used, then get_sb() should\n normally call simple_set_mnt() to instantiate the vfsmount. This will\n always return 0, and so can be tail-called from get_sb().\n\n (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the\n dcache upon superblock destruction rather than shrink_dcache_anon().\n\n This is required because the superblock may now have multiple trees that\n aren\u0027t actually bound to s_root, but that still need to be cleaned up. The\n currently called functions assume that the whole tree is rooted at s_root,\n and that anonymous dentries are not the roots of trees which results in\n dentries being left unculled.\n\n However, with the way NFS superblock sharing are currently set to be\n implemented, these assumptions are violated: the root of the filesystem is\n simply a dummy dentry and inode (the real inode for \u0027/\u0027 may well be\n inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries\n with child trees.\n\n [*] Anonymous until discovered from another tree.\n\n (*) The documentation has been adjusted, including the additional bit of\n changing ext2_* into foo_* in the documentation.\n\n[akpm@osdl.org: convert ipath_fs, do other stuff]\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nAcked-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Nathan Scott \u003cnathans@sgi.com\u003e\nCc: Roland Dreier \u003crolandd@cisco.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "09d967c6f32b35eab15b45862ae16e4f06259d8e", "tree": "9fca9dda390612041f857a33cb746fe1eb28b60a", "parents": [ "0e5b3781591cc954037c08ef78edf7f1192d38c5" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Thu Jun 22 14:47:21 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jun 22 15:05:57 2006 -0700" }, "message": "[PATCH] Fix a race condition between -\u003ei_mapping and iput()\n\nThis race became a cause of oops, and can reproduce by the following.\n\n while true; do\n\tdd if\u003d/dev/zero of\u003d/dev/.static/dev/hdg1 bs\u003d512 count\u003d1000 \u0026 sync\n done\n\nThis race condition was between __sync_single_inode() and iput().\n\n cpu0 (fs\u0027s inode) cpu1 (bdev\u0027s inode)\n ----------------- -------------------\n close(\"/dev/hda2\")\n [...]\n__sync_single_inode()\n /* copy the bdev\u0027s -\u003ei_mapping */\n mapping \u003d inode-\u003ei_mapping;\n\n generic_forget_inode()\n bdev_clear_inode()\n\t\t\t\t\t /* restre the fs\u0027s -\u003ei_mapping */\n\t\t\t\t inode-\u003ei_mapping \u003d \u0026inode-\u003ei_data;\n\t\t\t\t /* bdev\u0027s inode was freed */\n destroy_inode(inode);\n\n if (wait) {\n /* dereference a freed bdev\u0027s mapping-\u003ehost */\n filemap_fdatawait(mapping); /* Oops */\n\nSince __sync_single_inode() is only taking a ref-count of fs\u0027s inode, the\nanother process can be close() and freeing the bdev\u0027s inode while writing\nfs\u0027s inode. So, __sync_signle_inode() accesses the freed -\u003ei_mapping,\noops.\n\nThis patch takes a ref-count on the bdev\u0027s inode for the fs\u0027s inode before\nsetting a -\u003ei_mapping, and the clear_inode() of the fs\u0027s inode does iput() on\nthe bdev\u0027s inode. So if the fs\u0027s inode is still living, bdev\u0027s inode\nshouldn\u0027t be freed.\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7f9c51f0d9783c78db5c2aa16806d0c256ac667f", "tree": "53cfd26bd0077ae6373e54a7f91b2023af26a842", "parents": [ "f84d751994441292593523c7069ed147176f6cab" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon May 01 19:59:32 2006 +0200" }, "committer": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Mon May 01 19:59:32 2006 +0200" }, "message": "[PATCH] Add -\u003esplice_read/splice_write to def_blk_fops\n\nIt can use the generic handlers.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "4b6f5d20b04dcbc3d888555522b90ba6d36c4106", "tree": "420f271eaef7d3def7d4433b151c3cb6d7a54770", "parents": [ "99ac48f54a91d02140c497edc31dc57d4bc5c85d" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Tue Mar 28 01:56:42 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 09:16:06 2006 -0800" }, "message": "[PATCH] Make most file operations structs in fs/ const\n\nThis is a conversion to make the various file_operations structs in fs/\nconst. Basically a regexp job, with a few manual fixups\n\nThe goal is both to increase correctness (harder to accidentally write to\nshared datastructures) and reducing the false sharing of cachelines with\nthings that get dirty in .data (while .rodata is nicely read only and thus\ncache clean)\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b4cf1b72eec0e197257a5b07dc9ec53552cdd123", "tree": "5e292f1877ceaccb8d44683a5885078c0b101168", "parents": [ "f165921df46a977e3561f1bd9f13a348441486d1" ], "author": { "name": "Jun\u0027ichi Nomura", "email": "j-nomura@ce.jp.nec.com", "time": "Mon Mar 27 01:18:00 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:00 2006 -0800" }, "message": "[PATCH] dm/md dependency tree in sysfs: convert bd_sem to bd_mutex\n\nConvert bd_sem to bd_mutex\n\nSigned-off-by: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "641dc636b0475582e48584340b774bd1e90d40d9", "tree": "75c839cebd81a8ec4fae6c0cc35a387da160cfbe", "parents": [ "100873687d81d4ce7b1299b447d33e87ba1e9583" ], "author": { "name": "Jun\u0027ichi Nomura", "email": "j-nomura@ce.jp.nec.com", "time": "Mon Mar 27 01:17:57 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:45:00 2006 -0800" }, "message": "[PATCH] dm/md dependency tree in sysfs: bd_claim_by_kobject\n\nAdding bd_claim_by_kobject() function which takes kobject as additional\nsignature of holder device and creates sysfs symlinks between holder device\nand claimed device. bd_release_from_kobject() is a counterpart of\nbd_claim_by_kobject.\n\nSigned-off-by: Jun\u0027ichi Nomura \u003cj-nomura@ce.jp.nec.com\u003e\nCc: Alasdair G Kergon \u003cagk@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1d8fa7a2b9a39d18727acc5c468e870df606c852", "tree": "41537fe9ea5478f3243e3301184dc13980f8201f", "parents": [ "fa30bd058b746c0e2318a77ff8b4977faa924c2c" ], "author": { "name": "Badari Pulavarty", "email": "pbadari@us.ibm.com", "time": "Sun Mar 26 01:38:02 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 08:57:01 2006 -0800" }, "message": "[PATCH] remove -\u003eget_blocks() support\n\nNow that get_block() can handle mapping multiple disk blocks, no need to have\n-\u003eget_blocks(). This patch removes fs specific -\u003eget_blocks() added for DIO\nand makes it users use get_block() instead.\n\nSigned-off-by: Badari Pulavarty \u003cpbadari@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "fa3536cc144c1298f2ed9416c33f3b77fa2cd37a", "tree": "5484541319b86ae7dac0def4db7925f7cc7008e7", "parents": [ "878a9f30d7b13015f3aa4534d7877d985f150183" ], "author": { "name": "Eric Dumazet", "email": "dada1@cosmosbay.com", "time": "Sun Mar 26 01:37:24 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Mar 26 08:56:56 2006 -0800" }, "message": "[PATCH] Use __read_mostly on some hot fs variables\n\nI discovered on oprofile hunting on a SMP platform that dentry lookups were\nslowed down because d_hash_mask, d_hash_shift and dentry_hashtable were in\na cache line that contained inodes_stat. So each time inodes_stats is\nchanged by a cpu, other cpus have to refill their cache line.\n\nThis patch moves some variables to the __read_mostly section, in order to\navoid false sharing. RCU dentry lookups can go full speed.\n\nSigned-off-by: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "38885bd4c2a4b59ddb22271d3e6c621859c76f02", "tree": "60a4528db40c182f7091c8d84433542dabbc8faa", "parents": [ "a94ddf3ab866df9c187c9d8b3870b7ec38c6f7ad" ], "author": { "name": "Coywolf Qi Hunt", "email": "qiyong@fc-cn.com", "time": "Fri Mar 24 03:18:05 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 24 07:33:25 2006 -0800" }, "message": "[PATCH] sb_set_blocksize cleanup\n\nsb_set_blocksize() cleanup: make sb_set_blocksize() use blksize_bits().\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": "fffb60f93ce5880aade88e01d7133b52a4879710", "tree": "7882f0550af8580c0646306f6d391fe610f7ef8c", "parents": [ "4b6a9316fab51af611dc8671f296734089f6a22a" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Fri Mar 24 03:16:06 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 24 07:33:23 2006 -0800" }, "message": "[PATCH] cpuset memory spread: slab cache format\n\nRewrap the overly long source code lines resulting from the previous\npatch\u0027s addition of the slab cache flag SLAB_MEM_SPREAD. This patch\ncontains only formatting changes, and no function change.\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": "4b6a9316fab51af611dc8671f296734089f6a22a", "tree": "078f8f0f01a206af529bef137d5b71515c39053d", "parents": [ "44110fe385af23ca5eee8a6ad4ff55d50339097a" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Fri Mar 24 03:16:05 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 24 07:33:23 2006 -0800" }, "message": "[PATCH] cpuset memory spread: slab cache filesystems\n\nMark file system inode and similar slab caches subject to SLAB_MEM_SPREAD\nmemory spreading.\n\nIf a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that\u0027s\nin a cpuset with the \u0027memory_spread_slab\u0027 option enabled goes to allocate\nfrom such a slab cache, the allocations are spread evenly over all the\nmemory nodes (task-\u003emems_allowed) allowed to that task, instead of favoring\nallocation on the node local to the current cpu.\n\nThe following inode and similar caches are marked SLAB_MEM_SPREAD:\n\n file cache\n \u003d\u003d\u003d\u003d \u003d\u003d\u003d\u003d\u003d\n fs/adfs/super.c adfs_inode_cache\n fs/affs/super.c affs_inode_cache\n fs/befs/linuxvfs.c befs_inode_cache\n fs/bfs/inode.c bfs_inode_cache\n fs/block_dev.c bdev_cache\n fs/cifs/cifsfs.c cifs_inode_cache\n fs/coda/inode.c coda_inode_cache\n fs/dquot.c dquot\n fs/efs/super.c efs_inode_cache\n fs/ext2/super.c ext2_inode_cache\n fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr\n fs/ext3/super.c ext3_inode_cache\n fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr\n fs/fat/cache.c fat_cache\n fs/fat/inode.c fat_inode_cache\n fs/freevxfs/vxfs_super.c vxfs_inode\n fs/hpfs/super.c hpfs_inode_cache\n fs/isofs/inode.c isofs_inode_cache\n fs/jffs/inode-v23.c jffs_fm\n fs/jffs2/super.c jffs2_i\n fs/jfs/super.c jfs_ip\n fs/minix/inode.c minix_inode_cache\n fs/ncpfs/inode.c ncp_inode_cache\n fs/nfs/direct.c nfs_direct_cache\n fs/nfs/inode.c nfs_inode_cache\n fs/ntfs/super.c ntfs_big_inode_cache_name\n fs/ntfs/super.c ntfs_inode_cache\n fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache\n fs/ocfs2/super.c ocfs2_inode_cache\n fs/proc/inode.c proc_inode_cache\n fs/qnx4/inode.c qnx4_inode_cache\n fs/reiserfs/super.c reiser_inode_cache\n fs/romfs/inode.c romfs_inode_cache\n fs/smbfs/inode.c smb_inode_cache\n fs/sysv/inode.c sysv_inode_cache\n fs/udf/super.c udf_inode_cache\n fs/ufs/super.c ufs_inode_cache\n net/socket.c sock_inode_cache\n net/sunrpc/rpc_pipe.c rpc_inode_cache\n\nThe choice of which slab caches to so mark was quite simple. I marked\nthose already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache,\ninode_cache, and buffer_head, which were marked in a previous patch. Even\nthough SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same\npotentially large file system i/o related slab caches as we need for memory\nspreading.\n\nGiven that the rule now becomes \"wherever you would have used a\nSLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use\nthe SLAB_MEM_SPREAD flag too\", this should be easy enough to maintain.\nFuture file system writers will just copy one of the existing file system\nslab cache setups and tend to get it right without thinking.\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": "c039e3134ae62863bbc8e8429b29e3c43cf21b2a", "tree": "b9bbf4fda0844e3173bf10a5bffbaaec94fb4246", "parents": [ "6f87f0deebaff2716a3ce9232f948d702690562a" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Thu Mar 23 03:00:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 23 07:38:11 2006 -0800" }, "message": "[PATCH] sem2mutex: blockdev #2\n\nSemaphore to mutex conversion.\n\nThe conversion was generated via scripts, and the result was validated\nautomatically via a script as well.\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Jens Axboe \u003caxboe@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1b1dcc1b57a49136f118a0f16367256ff9994a69", "tree": "b0b36d4f41d28c9d6514fb309d33c1a084d6309b", "parents": [ "794ee1baee1c26be40410233e6c20bceb2b03c08" ], "author": { "name": "Jes Sorensen", "email": "jes@sgi.com", "time": "Mon Jan 09 15:59:24 2006 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@hera.kernel.org", "time": "Mon Jan 09 15:59:24 2006 -0800" }, "message": "[PATCH] mutex subsystem, semaphore to mutex: VFS, -\u003ei_sem\n\nThis patch converts the inode semaphore to a mutex. I have tested it on\nXFS and compiled as much as one can consider on an ia64. Anyway your\nluck with it might be different.\n\nModified-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n\n(finished the conversion)\n\nSigned-off-by: Jes Sorensen \u003cjes@sgi.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n" }, { "commit": "bb93e3a52f8db7210258a1a2134cced0b78a46e1", "tree": "b6def4c3fe5624769de64e242bb2007fffea55c8", "parents": [ "0d77e5a2c23da734f5a7925f64afa1c2ed92e0f9" ], "author": { "name": "Arnd Bergmann", "email": "arnd@arndb.de", "time": "Thu Jun 23 00:10:15 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Thu Jun 23 09:45:32 2005 -0700" }, "message": "[PATCH] block: add unlocked_ioctl support for block devices\n\nThis patch allows block device drivers to convert their ioctl functions to\nunlocked_ioctl() like character devices and other subsystems. All\nfunctions that were called with the BKL held before are still used that\nway, but I would not be surprised if it could be removed from the ioctl\nfunctions in drivers/block/ioctl.c themselves.\n\nAs a side note, I found that compat_blkdev_ioctl() acquires the BKL as\nwell, which looks like a bug. I have checked that every user of\ndisk-\u003efops-\u003ecompat_ioctl() in the current git tree gets the BKL itself, so\nit could easily be removed from compat_blkdev_ioctl().\n\nSigned-off-by: Arnd Bergmann \u003carnd@arndb.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2ef41634def0fcb0def3e3c90220c651ca478cb3", "tree": "86fb9c439ad5043d38d69588975e84bd8b565619", "parents": [ "91bb52416854dfd581efe6e2a0aca8dc655f043e" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Thu May 05 16:15:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Thu May 05 16:36:44 2005 -0700" }, "message": "[PATCH] remove do_sync parameter from __invalidate_device\n\nThe only caller that ever sets it can call fsync_bdev itself easily. Also\nupdate some comments.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: \u003cviro@parcelfarce.linux.theplanet.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }