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linux/fs/squashfs/cache.c

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Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: update email address My existing email address may stop working in a month or two, so update email to one that will continue working. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-26 10:39:56 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
treewide: fix a few typos in comments - kenrel -> kernel - whetehr -> whether - ttt -> tt - sss -> ss Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-05-10 10:16:21 +02:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: optimise squashfs_cache_get entry search squashfs_cache_get() iterates over all entries to search for block its looking for. Often get() / put() are called for same block. If we cache the current entry index, then we can optimise the subsequent *_get() calls. Signed-off-by: Ajeet Yadav <ajeet.yadav.77@gmail.com> Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-27 15:10:04 +05:30
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: optimise squashfs_cache_get entry search squashfs_cache_get() iterates over all entries to search for block its looking for. Often get() / put() are called for same block. If we cache the current entry index, then we can optimise the subsequent *_get() calls. Signed-off-by: Ajeet Yadav <ajeet.yadav.77@gmail.com> Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-27 15:10:04 +05:30
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: optimise squashfs_cache_get entry search squashfs_cache_get() iterates over all entries to search for block its looking for. Often get() / put() are called for same block. If we cache the current entry index, then we can optimise the subsequent *_get() calls. Signed-off-by: Ajeet Yadav <ajeet.yadav.77@gmail.com> Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-27 15:10:04 +05:30
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: Fix oops when reading fsfuzzer corrupted filesystems 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>
2009-03-05 00:31:12 +00:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: optimise squashfs_cache_get entry search squashfs_cache_get() iterates over all entries to search for block its looking for. Often get() / put() are called for same block. If we cache the current entry index, then we can optimise the subsequent *_get() calls. Signed-off-by: Ajeet Yadav <ajeet.yadav.77@gmail.com> Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-27 15:10:04 +05:30
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: fix breakage when page size > metadata block size 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>
2009-05-13 02:56:39 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-30 22:57:33 -03:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: add missing block release on error condition squashfs_read_metadata forgets to release the cache block if an error has occurred. Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-29 03:50:20 +00:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: add missing block release on error condition squashfs_read_metadata forgets to release the cache block if an error has occurred. Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-29 03:50:20 +00:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: add missing block release on error condition squashfs_read_metadata forgets to release the cache block if an error has occurred. Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
2011-12-29 03:50:20 +00:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: move table allocation into squashfs_read_table() This eliminates a lot of duplicate code. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-20 02:26:43 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: move table allocation into squashfs_read_table() This eliminates a lot of duplicate code. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-20 02:26:43 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: move table allocation into squashfs_read_table() This eliminates a lot of duplicate code. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-20 02:26:43 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: Fix oops when reading fsfuzzer corrupted filesystems 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>
2009-03-05 00:31:12 +00:00
Squashfs: move table allocation into squashfs_read_table() This eliminates a lot of duplicate code. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-20 02:26:43 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00
Squashfs: move table allocation into squashfs_read_table() This eliminates a lot of duplicate code. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2011-05-20 02:26:43 +01:00
Squashfs: cache operations Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2009-01-05 08:46:26 +00:00