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btrfs: compression: add helper for type to string conversion

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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>
This commit is contained in:
David Sterba
2017-10-31 17:24:26 +01:00
parent bf8d32b9b3
commit e128f9c3f7
2 changed files with 17 additions and 0 deletions
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fs/btrfs/compression.h
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@@ -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