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| author | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
| commit | cf40a76e7d5874bb25f4404eecc58a2e033af885 (patch) | |
| tree | 8fd81cbea03c87b3d41d7ae5b1d11eadd35d6ef5 /fs/btrfs/compression.h | |
| parent | ab5348c9c23cd253f5902980d2d8fe067dc24c82 (diff) | |
| parent | 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff) | |
Merge tag 'v4.15-rc1' into next-seccomp
Linux 4.15-rc1
Diffstat (limited to 'fs/btrfs/compression.h')
| -rw-r--r-- | fs/btrfs/compression.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h index 87f6d3332163..da20755ebf21 100644 --- a/fs/btrfs/compression.h +++ b/fs/btrfs/compression.h @@ -76,7 +76,7 @@ struct compressed_bio { void btrfs_init_compress(void); void btrfs_exit_compress(void); -int btrfs_compress_pages(int type, struct address_space *mapping, +int btrfs_compress_pages(unsigned int type_level, struct address_space *mapping, u64 start, struct page **pages, unsigned long *out_pages, unsigned long *total_in, @@ -95,12 +95,14 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start, blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, int mirror_num, unsigned long bio_flags); +unsigned btrfs_compress_str2level(const char *str); + enum btrfs_compression_type { BTRFS_COMPRESS_NONE = 0, BTRFS_COMPRESS_ZLIB = 1, BTRFS_COMPRESS_LZO = 2, - BTRFS_COMPRESS_TYPES = 2, - BTRFS_COMPRESS_LAST = 3, + BTRFS_COMPRESS_ZSTD = 3, + BTRFS_COMPRESS_TYPES = 3, }; struct btrfs_compress_op { @@ -124,9 +126,14 @@ struct btrfs_compress_op { struct page *dest_page, unsigned long start_byte, size_t srclen, size_t destlen); + + void (*set_level)(struct list_head *ws, unsigned int type); }; 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; + +int btrfs_compress_heuristic(struct inode *inode, u64 start, u64 end); #endif |