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authorChris Mason <chris.mason@oracle.com>2011-05-24 15:35:30 -0400
committerChris Mason <chris.mason@oracle.com>2011-05-26 17:52:15 -0400
commit4cb5300bc839b8a943eb19c9f27f25470e22d0ca (patch)
treeac0f2fb481c7aa6af08a624d276fa6d580c94c9b /fs/btrfs/ioctl.h
parentd6c0cb379c5198487e4ac124728cbb2346d63b1f (diff)
Btrfs: add mount -o auto_defrag
This will detect small random writes into files and queue the up for an auto defrag process. It isn't well suited to database workloads yet, but works for smaller files such as rpm, sqlite or bdb databases. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ioctl.h')
-rw-r--r--fs/btrfs/ioctl.h31
1 files changed, 0 insertions, 31 deletions
diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h
index e5e0ee2cad4e..ad1ea789fcb4 100644
--- a/fs/btrfs/ioctl.h
+++ b/fs/btrfs/ioctl.h
@@ -181,37 +181,6 @@ struct btrfs_ioctl_clone_range_args {
#define BTRFS_DEFRAG_RANGE_COMPRESS 1
#define BTRFS_DEFRAG_RANGE_START_IO 2
-struct btrfs_ioctl_defrag_range_args {
- /* start of the defrag operation */
- __u64 start;
-
- /* number of bytes to defrag, use (u64)-1 to say all */
- __u64 len;
-
- /*
- * flags for the operation, which can include turning
- * on compression for this one defrag
- */
- __u64 flags;
-
- /*
- * any extent bigger than this will be considered
- * already defragged. Use 0 to take the kernel default
- * Use 1 to say every single extent must be rewritten
- */
- __u32 extent_thresh;
-
- /*
- * which compression method to use if turning on compression
- * for this defrag operation. If unspecified, zlib will
- * be used
- */
- __u32 compress_type;
-
- /* spare for later */
- __u32 unused[4];
-};
-
struct btrfs_ioctl_space_info {
__u64 flags;
__u64 total_bytes;