Enzo Matsumiya 94ae8c3fee smb: client: compress: LZ77 code improvements cleanup ... - Check data compressibility with some heuristics (copied from btrfs): - should_compress() final decision is is_compressible(data) - Cleanup compress/lz77.h leaving only lz77_compress() exposed: - Move parts to compress/lz77.c, while removing the rest of it because they were either unused, used only once, were implemented wrong (thanks to David Howells for the help) - Updated the compression parameters (still compatible with Windows implementation) trading off ~20% compression ratio for ~40% performance: - min match len: 3 -> 4 - max distance: 8KiB -> 1KiB - hash table type: u32 * -> u64 * Known bugs: This implementation currently works fine in general, but breaks with some payloads used during testing. Investigation ongoing, to be fixed in a next commit. Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de> Co-developed-by: David Howells <dhowells@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>		2024-09-15 10:42:45 -05:00
..
lz77.c
lz77.h