diff options
| author | David Sterba <dsterba@suse.com> | 2017-10-31 17:24:26 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-01-22 16:08:16 +0100 |
| commit | e128f9c3f7242318e1c76d204c7ae32bc878b8c7 (patch) | |
| tree | f481867c52ea0a6889aead29b254782b23f5e055 /fs | |
| parent | bf8d32b9b3c5fb183aa4ac5cb7bae9580dcb0dfb (diff) | |
btrfs: compression: add helper for type to string conversion
There are several places opencoding this conversion, add a helper now
that we have 3 compression algorithms.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/compression.c | 15 | ||||
| -rw-r--r-- | fs/btrfs/compression.h | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 8cd48d7c3f76..28c3940062b7 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -44,6 +44,21 @@ #include "extent_io.h" #include "extent_map.h" +static const char* const btrfs_compress_types[] = { "", "zlib", "lzo", "zstd" }; + +const char* btrfs_compress_type2str(enum btrfs_compression_type type) +{ + switch (type) { + case BTRFS_COMPRESS_ZLIB: + case BTRFS_COMPRESS_LZO: + case BTRFS_COMPRESS_ZSTD: + case BTRFS_COMPRESS_NONE: + return btrfs_compress_types[type]; + } + + return NULL; +} + static int btrfs_decompress_bio(struct compressed_bio *cb); static inline int compressed_bio_size(struct btrfs_fs_info *fs_info, diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 6b692903a23c..677fa4aa0bd7 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -137,6 +137,8 @@ extern const struct btrfs_compress_op btrfs_zlib_compress; extern const struct btrfs_compress_op btrfs_lzo_compress; extern const struct btrfs_compress_op btrfs_zstd_compress; +const char* btrfs_compress_type2str(enum btrfs_compression_type type); + int btrfs_compress_heuristic(struct inode *inode, u64 start, u64 end); #endif |