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author | Yan Zheng <zheng.yan@oracle.com> | 2008-10-30 18:25:28 (GMT) |
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committer | Chris Mason <chris.mason@oracle.com> | 2008-10-30 18:25:28 (GMT) |
commit | d899e05215178fed903ad0e7fc1cb4d8e0cc0a88 (patch) | |
tree | 2969e3558f5c50ec0f9ac4201099c0d5d1d6e2c2 /fs/btrfs/ordered-data.h | |
parent | 80ff385665b7fca29fefe358a60ab0d09f9b8e87 (diff) | |
download | linux-d899e05215178fed903ad0e7fc1cb4d8e0cc0a88.tar.xz |
Btrfs: Add fallocate support v2
This patch updates btrfs-progs for fallocate support.
fallocate is a little different in Btrfs because we need to tell the
COW system that a given preallocated extent doesn't need to be
cow'd as long as there are no snapshots of it. This leverages the
-o nodatacow checks.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Diffstat (limited to 'fs/btrfs/ordered-data.h')
-rw-r--r-- | fs/btrfs/ordered-data.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h index e6d9bc5..260bf95 100644 --- a/fs/btrfs/ordered-data.h +++ b/fs/btrfs/ordered-data.h @@ -68,6 +68,8 @@ struct btrfs_ordered_sum { #define BTRFS_ORDERED_COMPRESSED 3 /* writing a compressed extent */ +#define BTRFS_ORDERED_PREALLOC 4 /* set when writing to prealloced extent */ + struct btrfs_ordered_extent { /* logical offset in the file */ u64 file_offset; @@ -132,7 +134,7 @@ int btrfs_remove_ordered_extent(struct inode *inode, int btrfs_dec_test_ordered_pending(struct inode *inode, u64 file_offset, u64 io_size); int btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, - u64 start, u64 len, u64 disk_len, int type); + u64 start, u64 len, u64 disk_len, int tyep); int btrfs_add_ordered_sum(struct inode *inode, struct btrfs_ordered_extent *entry, struct btrfs_ordered_sum *sum); |