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2009-06-12push BKL down into ->put_superChristoph Hellwig1-0/+4
Move BKL into ->put_super from the only caller. A couple of filesystems had trivial enough ->put_super (only kfree and NULLing of s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs, hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most of them probably don't need it, but I'd rather sort that out individually. Preferably after all the other BKL pushdowns in that area. [AV: original used to move lock_super() down as well; these changes are removed since we don't do lock_super() at all in generic_shutdown_super() now] [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-05-13Squashfs: cody tidying, remove commented out line in MakefilePhillip Lougher1-1/+0
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-05-13Squashfs: check page size is not larger than the filesystem block sizePhillip Lougher1-0/+10
Normally the block size (by default 128K) will be larger than the page size, unless a non-standard block size has been specified in Mksquashfs, and the page size is larger than 4K. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-05-13Squashfs: fix breakage when page size > metadata block sizeDoug Chapman1-0/+1
Squashfs is broken on any system where the page size is larger than the metadata size (8192). This is easily fixed by ensuring cache->pages is always > 0. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Doug Chapman <doug.chapman@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-04-07Merge branch 'kmemtrace-for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'kmemtrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: kmemtrace: trace kfree() calls with NULL or zero-length objects kmemtrace: small cleanups kmemtrace: restore original tracing data binary format, improve ABI kmemtrace: kmemtrace_alloc() must fill type_id kmemtrace: use tracepoints kmemtrace, rcu: don't include unnecessary headers, allow kmemtrace w/ tracepoints kmemtrace, rcu: fix rcupreempt.c data structure dependencies kmemtrace, rcu: fix rcu_tree_trace.c data structure dependencies kmemtrace, rcu: fix linux/rcutree.h and linux/rcuclassic.h dependencies kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_unlzma.c kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_bunzip2.c kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_inflate.c kmemtrace, squashfs: fix slab.h dependency problem in squasfs kmemtrace, befs: fix slab.h dependency problem kmemtrace, security: fix linux/key.h header file dependencies kmemtrace, fs: fix linux/fdtable.h header file dependencies kmemtrace, fs: uninline simple_transaction_set() kmemtrace, fs, security: move alloc_secdata() and free_secdata() to linux/security.h
2009-04-03kmemtrace, squashfs: fix slab.h dependency problem in squasfsPekka Enberg1-0/+1
Impact: cleanup fs/squashfs/export.c depends on slab.h without including it: CC fs/squashfs/export.o fs/squashfs/export.c: In function ‘squashfs_read_inode_lookup_table’: fs/squashfs/export.c:133: error: implicit declaration of function ‘kmalloc’ fs/squashfs/export.c:133: warning: assignment makes pointer from integer without a cast fs/squashfs/export.c:143: error: implicit declaration of function ‘kfree’ make[1]: *** [fs/squashfs/export.o] Error 1 make: *** [fs/squashfs/] Error 2 It gets included implicitly currently - but this will not be the case with upcoming kmemtrace changes. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> LKML-Reference: <1237884999.25315.41.camel@penberg-laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-03fs/squashfs: return f_fsid for statfs(2)Coly Li1-0/+3
Make squashfs return f_fsid info for statfs(2). Signed-off-by: Coly Li <coly.li@suse.de> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-12Squashfs: Valid filesystems are flagged as bad by the corrupted fs patchPhillip Lougher1-17/+4
The corrupted filesystem patch added a check against zlib trying to output too much data in the presence of data corruption. This check triggered if zlib_inflate asked to be called again (Z_OK) with avail_out == 0 and no more output buffers available. This check proves to be rather dumb, as it incorrectly catches the case where zlib has generated all the output, but there are still input bytes to be processed. This patch does a number of things. It removes the original check and replaces it with code to not move to the next output buffer if there are no more output buffers available, relying on zlib to error if it wants an extra output buffer in the case of data corruption. It also replaces the Z_NO_FLUSH flag with the more correct Z_SYNC_FLUSH flag, and makes the error messages more understandable to non-technical users. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> Reported-by: Stefan Lippers-Hollmann <s.L-H@gmx.de>
2009-03-05Squashfs: frag_size should be signed, as it can hold an error resultRoel Kluin1-2/+4
Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-03-05Squashfs: Fix oops when reading fsfuzzer corrupted filesystemsPhillip Lougher4-6/+15
This fixes a code regression caused by the recent mainlining changes. The recent code changes call zlib_inflate repeatedly, decompressing into separate 4K buffers, this code didn't check for the possibility that zlib_inflate might ask for too many buffers when decompressing corrupted data. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-22fs/Kconfig: move squashfs outAlexey Dobriyan1-0/+51
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-16btrfs & squashfs: Move btrfs and squashfsto's magic number to <linux/magic.h>Qinghuang Feng2-1/+1
Use the standard magic.h for btrfs and squashfs. Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com> Cc: Phillip Lougher <phillip@lougher.demon.co.uk> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-05Squashfs: MakefilesPhillip Lougher1-0/+8
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: header filesPhillip Lougher4-0/+592
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: block operationsPhillip Lougher1-0/+274
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: cache operationsPhillip Lougher1-0/+412
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: uid/gid lookup operationsPhillip Lougher1-0/+94
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: fragment block operationsPhillip Lougher1-0/+98
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: export operationsPhillip Lougher1-0/+155
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: super block operationsPhillip Lougher1-0/+440
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: symlink operationsPhillip Lougher1-0/+118
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: regular file operationsPhillip Lougher1-0/+502
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: directory readdir operationsPhillip Lougher1-0/+235
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: directory lookup operationsPhillip Lougher1-0/+242
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05Squashfs: inode operationsPhillip Lougher1-0/+346
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
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