diff options
| author | Chao Yu <yuchao0@huawei.com> | 2020-03-03 17:46:02 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-04-03 10:21:10 -0700 |
| commit | 50cfa66f0de02eff30fb81bdc878bb986cf3aff3 (patch) | |
| tree | f0734034069425ffb2d453931e3859c0001cedfd /fs/f2fs/f2fs.h | |
| parent | 23b1faaade19a2aa2d4c3e387b875d105675343e (diff) | |
f2fs: compress: support zstd compress algorithm
Add zstd compress algorithm support, use "compress_algorithm=zstd"
mountoption to enable it.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index dea45bb57862..8d206dcc33ab 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1267,6 +1267,7 @@ enum fsync_mode { enum compress_algorithm_type { COMPRESS_LZO, COMPRESS_LZ4, + COMPRESS_ZSTD, COMPRESS_MAX, }; @@ -1296,6 +1297,7 @@ struct compress_ctx { size_t rlen; /* valid data length in rbuf */ size_t clen; /* valid data length in cbuf */ void *private; /* payload buffer for specified compression algorithm */ + void *private2; /* extra payload buffer */ }; /* compress context for write IO path */ @@ -1325,11 +1327,14 @@ struct decompress_io_ctx { size_t clen; /* valid data length in cbuf */ refcount_t ref; /* referrence count of compressed page */ bool failed; /* indicate IO error during decompression */ + void *private; /* payload buffer for specified decompression algorithm */ + void *private2; /* extra payload buffer */ }; #define NULL_CLUSTER ((unsigned int)(~0)) #define MIN_COMPRESS_LOG_SIZE 2 #define MAX_COMPRESS_LOG_SIZE 8 +#define MAX_COMPRESS_WINDOW_SIZE ((PAGE_SIZE) << MAX_COMPRESS_LOG_SIZE) struct f2fs_sb_info { struct super_block *sb; /* pointer to VFS super block */ |