diff options
| author | Li Zefan <lizf@cn.fujitsu.com> | 2010-11-18 03:49:56 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2011-10-25 09:18:31 -0400 |
| commit | a418b24318723c0a45fe1f1b76b9286baa36c537 (patch) | |
| tree | c2a4138d73454235ca1757ed0a8df561f5cb615c /ctree.h | |
| parent | b8802ae3fa0c70d4cfc3287ed07479925973b0ac (diff) | |
Update for lzo support
[Btrfs-Progs][V2] Update for lzo support
- Add incompat flag, otherwise btrfs-progs will report error
when operating on btrfs filesystems mounted with lzo option.
- Update man page.
- Allow to turn on lzo compression for defrag operation:
# btrfs filesystem defragment -c[zlib, lzo] <file>
Note: "-c zlib" will fail, because that's how getopt() works
for optional arguments.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'ctree.h')
| -rw-r--r-- | ctree.h | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -354,12 +354,14 @@ struct btrfs_super_block { #define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0) #define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL (1ULL << 1) #define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS (1ULL << 2) +#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO (1ULL << 3) #define BTRFS_FEATURE_COMPAT_SUPP 0ULL #define BTRFS_FEATURE_COMPAT_RO_SUPP 0ULL #define BTRFS_FEATURE_INCOMPAT_SUPP \ (BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF | \ BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL | \ + BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO | \ BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS) /* @@ -505,9 +507,11 @@ struct btrfs_timespec { } __attribute__ ((__packed__)); typedef enum { - BTRFS_COMPRESS_NONE = 0, - BTRFS_COMPRESS_ZLIB = 1, - BTRFS_COMPRESS_LAST = 2, + BTRFS_COMPRESS_NONE = 0, + BTRFS_COMPRESS_ZLIB = 1, + BTRFS_COMPRESS_LZO = 2, + BTRFS_COMPRESS_TYPES = 2, + BTRFS_COMPRESS_LAST = 3, } btrfs_compression_type; /* we don't understand any encryption methods right now */ |