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* omfs: make readdir stop when filldir says soAl Viro2011-03-051-2/+3
| | | | | | | | filldir returning an error does *not* mean "skip this entry, try the next one"... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Bob Copeland <me@bobcopeland.com>
* omfs: merge unlink() and rmdir(), close leak in rename()Al Viro2011-03-051-40/+13
| | | | | | | | | | | | | | | In case of directory-overwriting rename(), omfs forgot to mark the victim doomed, so omfs_evict_inode() didn't free it. We could fix that by calling omfs_rmdir() for directory victims instead of doing omfs_unlink(), but it's easier to merge omfs_unlink() and omfs_rmdir() instead. Note that we have no hardlinks here. It also makes the checks in omfs_rename() go away - they fold into what omfs_remove() does when it runs into a directory. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Bob Copeland <me@bobcopeland.com>
* omfs: stop playing silly buggers with omfs_unlink() in ->rename()Al Viro2011-03-051-4/+3
| | | | | | | | | | | | | | | Since omfs directories are hashes of inodes and name is part of inode, we have to remove inode from old directory before we can put it into new one / under new name. So instead of bump i_nlink call omfs_unlink, which does omfs_delete_entry() decrement i_nlink and mark parent dirty in case of success decrement i_nlink if omfs_unlink failed and hadn't done it itself let's just call omfs_delete_entry() and dirty the parent ourselves... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Bob Copeland <me@bobcopeland.com>
* omfs: rename() needs to mark old_inode dirty after ctime updateAl Viro2011-03-051-0/+1
| | | | | | | | | we *do* mark it dirty before, but it doesn't guarantee that we don't get preempted just before assignment to ->i_ctime, with inode getting written out before we get CPU back... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Bob Copeland <me@bobcopeland.com>
* omfs: check bounds on block numbers before passing to sb_breadBob Copeland2010-07-101-14/+8
| | | | | | | | | In case of filesystem corruption, passing unchecked block numbers into sb_bread can result in an infinite loop in __getblk(). Introduce a wrapper function omfs_sbread() to check the block numbers and to also perform the clus_to_blk() scaling. Signed-off-by: Bob Copeland <me@bobcopeland.com>
* const: constify remaining file_operationsAlexey Dobriyan2009-10-011-1/+1
| | | | | | | | [akpm@linux-foundation.org: fix KVM] Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* const: mark remaining inode_operations as constAlexey Dobriyan2009-09-221-1/+1
| | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fix ->llseek for more directoriesChristoph Hellwig2008-10-231-0/+1
| | | | | | | With this patch all directory fops instances that have a readdir that doesn't take the BKL are switched to generic_file_llseek. Signed-off-by: Christoph Hellwig <hch@lst.de>
* omfs: sparse annotationsHarvey Harrison2008-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Missing cpu_to_be64 on some constant assignments. fs/omfs/dir.c:107:16: warning: incorrect type in assignment (different base types) fs/omfs/dir.c:107:16: expected restricted __be64 [usertype] i_sibling fs/omfs/dir.c:107:16: got unsigned long long fs/omfs/file.c:33:13: warning: incorrect type in assignment (different base types) fs/omfs/file.c:33:13: expected restricted __be64 [usertype] e_next fs/omfs/file.c:33:13: got unsigned long long fs/omfs/file.c:36:24: warning: incorrect type in assignment (different base types) fs/omfs/file.c:36:24: expected restricted __be64 [usertype] e_cluster fs/omfs/file.c:36:24: got unsigned long long fs/omfs/file.c:37:23: warning: incorrect type in assignment (different base types) fs/omfs/file.c:37:23: expected restricted __be64 [usertype] e_blocks fs/omfs/file.c:37:23: got unsigned long long fs/omfs/bitmap.c:74:18: warning: incorrect type in argument 2 (different signedness) fs/omfs/bitmap.c:74:18: expected unsigned long volatile *addr fs/omfs/bitmap.c:74:18: got long *<noident> fs/omfs/bitmap.c:77:20: warning: incorrect type in argument 2 (different signedness) fs/omfs/bitmap.c:77:20: expected unsigned long volatile *addr fs/omfs/bitmap.c:77:20: got long *<noident> fs/omfs/bitmap.c:112:17: warning: incorrect type in argument 2 (different signedness) fs/omfs/bitmap.c:112:17: expected unsigned long volatile *addr fs/omfs/bitmap.c:112:17: got long *<noident> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* omfs: add directory routinesBob Copeland2008-07-261-0/+504
Add lookup and directory management routines for OMFS. The filesystem uses hashing based on the filename and stores collisions, unordered, in siblings of files' inode structures. To support telldir, the current position in the hash table is encoded in fpos. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>