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author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-10-22 14:23:00 +0300 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-10-22 15:31:12 +0300 |
commit | 06ff08f391e0297c4fcde63b801e6992d2238ae2 (patch) | |
tree | 9ed853db391876a887962c1d75b1c13786ce85bf /mkfs.ubifs/compr.h | |
parent | d217a4e65084b0ef807e5749513bff16ddfb0b58 (diff) |
Define the worst case compression constant
It will be used in the next patches.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'mkfs.ubifs/compr.h')
-rw-r--r-- | mkfs.ubifs/compr.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mkfs.ubifs/compr.h b/mkfs.ubifs/compr.h index c76a5b9..e3dd95c 100644 --- a/mkfs.ubifs/compr.h +++ b/mkfs.ubifs/compr.h @@ -23,6 +23,14 @@ #ifndef __UBIFS_COMPRESS_H__ #define __UBIFS_COMPRESS_H__ +/* + * Compressors may end-up with more data in the output buffer than in the input + * buffer. This constant defined the worst case factor, i.e. we assume that the + * output buffer may be at max. WORST_COMPR_FACTOR times larger than input + * buffer. + */ +#define WORST_COMPR_FACTOR 4 + enum compression_type { MKFS_UBIFS_COMPR_NONE, |