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smb: client: compress: increase LZ77_MATCH_MAX_DIST

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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: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Enzo Matsumiya 2026-04-13 16:07:09 -03:00 committed by Steve French
parent 20d4f9efe0
commit fca46b0e68
1 changed files with 1 additions and 2 deletions
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3
fs/smb/client/compress/lz77.c
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@ -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)