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| author | Phillip Lougher <phillip@lougher.demon.co.uk> | 2009-10-14 03:58:11 +0100 |
|---|---|---|
| committer | Phillip Lougher <phillip@lougher.demon.co.uk> | 2010-01-20 21:47:48 +0000 |
| commit | dc3256782f88602953676c447b243dedb1be99ad (patch) | |
| tree | db94f1e5aa06f8260631a5a21bea332c1b6e14c8 /fs/squashfs | |
| parent | 4c0f0bb2351bee3de8dd7715ee199454a59f1230 (diff) | |
| download | lwn-dc3256782f88602953676c447b243dedb1be99ad.tar.gz lwn-dc3256782f88602953676c447b243dedb1be99ad.zip | |
Squashfs: add decompressor entries for lzma and lzo
Add knowledge of lzma/lzo compression formats to the decompressor
framework. For now these are added as unsupported. Without
these entries lzma/lzo compressed filesystems will be flagged as
having unknown compression which is undesirable.
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Diffstat (limited to 'fs/squashfs')
| -rw-r--r-- | fs/squashfs/decompressor.c | 10 | ||||
| -rw-r--r-- | fs/squashfs/squashfs_fs.h | 4 |
2 files changed, 13 insertions, 1 deletions
diff --git a/fs/squashfs/decompressor.c b/fs/squashfs/decompressor.c index 0072ccdac1e2..157478da6ac9 100644 --- a/fs/squashfs/decompressor.c +++ b/fs/squashfs/decompressor.c @@ -36,12 +36,22 @@ * Squashfs, allowing multiple decompressors to be easily supported */ +static const struct squashfs_decompressor squashfs_lzma_unsupported_comp_ops = { + NULL, NULL, NULL, LZMA_COMPRESSION, "lzma", 0 +}; + +static const struct squashfs_decompressor squashfs_lzo_unsupported_comp_ops = { + NULL, NULL, NULL, LZO_COMPRESSION, "lzo", 0 +}; + static const struct squashfs_decompressor squashfs_unknown_comp_ops = { NULL, NULL, NULL, 0, "unknown", 0 }; static const struct squashfs_decompressor *decompressor[] = { &squashfs_zlib_comp_ops, + &squashfs_lzma_unsupported_comp_ops, + &squashfs_lzo_unsupported_comp_ops, &squashfs_unknown_comp_ops }; diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h index 283daafc568e..36e1604ab1c1 100644 --- a/fs/squashfs/squashfs_fs.h +++ b/fs/squashfs/squashfs_fs.h @@ -211,7 +211,9 @@ struct meta_index { /* * definitions for structures on disk */ -#define ZLIB_COMPRESSION 1 +#define ZLIB_COMPRESSION 1 +#define LZMA_COMPRESSION 2 +#define LZO_COMPRESSION 3 struct squashfs_super_block { __le32 s_magic; |