Commit fca46b0e authored by Enzo Matsumiya's avatar Enzo Matsumiya Committed by Steve French
Browse files

smb: client: compress: increase LZ77_MATCH_MAX_DIST 



Increase max distance (i.e. window size) from 1k to 8k.
This allows better compression and is just as fast.

Other:
- drop LZ77_MATCH_MIN_DIST as it's nused -- main loop
  already checks if dist > 0

Signed-off-by: default avatarEnzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 20d4f9ef

fs/smb/client/compress/lz77.c

+1 −2
Original line number Diff line number Diff line
@@ -17,8 +17,7 @@ 
 * Compression parameters.

 */

#define LZ77_MATCH_MIN_LEN	4

#define LZ77_MATCH_MIN_DIST	1

#define LZ77_MATCH_MAX_DIST	SZ_1K

#define LZ77_MATCH_MAX_DIST	SZ_8K

#define LZ77_HASH_LOG		15

#define LZ77_HASH_SIZE		(1 << LZ77_HASH_LOG)

#define LZ77_STEP_SIZE		sizeof(u64)