diff options
Diffstat (limited to 'include/uapi/linux/btrfs.h')
| -rw-r--r-- | include/uapi/linux/btrfs.h | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index d3b222d7af24..dd02160015b2 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -615,7 +615,9 @@ struct btrfs_ioctl_clone_range_args { */ #define BTRFS_DEFRAG_RANGE_COMPRESS 1 #define BTRFS_DEFRAG_RANGE_START_IO 2 +#define BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL 4 #define BTRFS_DEFRAG_RANGE_FLAGS_SUPP (BTRFS_DEFRAG_RANGE_COMPRESS | \ + BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL | \ BTRFS_DEFRAG_RANGE_START_IO) struct btrfs_ioctl_defrag_range_args { @@ -640,10 +642,18 @@ struct btrfs_ioctl_defrag_range_args { /* * which compression method to use if turning on compression - * for this defrag operation. If unspecified, zlib will - * be used + * for this defrag operation. If unspecified, zlib will be + * used. If compression level is also being specified, set the + * BTRFS_DEFRAG_RANGE_COMPRESS_LEVEL flag and fill the compress + * member structure instead of the compress_type field. */ - __u32 compress_type; + union { + __u32 compress_type; + struct { + __u8 type; + __s8 level; + } compress; + }; /* spare for later */ __u32 unused[4]; |