diff options
| author | Wang Shilong <wangsl.fnst@cn.fujitsu.com> | 2013-10-25 19:12:02 +0800 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-11-11 22:10:13 -0500 |
| commit | 9b011adfe14977fcda977234609d43ca52463a3d (patch) | |
| tree | a96feceecabdc4bb71d8ff099a4317d3f8f1d9fe /fs/btrfs/ctree.h | |
| parent | 7fdf4b608dda5eea114cb23623b52e34dd5972f5 (diff) | |
| download | linux-9b011adfe14977fcda977234609d43ca52463a3d.tar.bz2 | |
Btrfs: remove scrub_super_lock holding in btrfs_sync_log()
Originally, we introduced scrub_super_lock to synchronize
tree log code with scrubbing super.
However we can replace scrub_super_lock with device_list_mutex,
because writing super will hold this mutex, this will reduce an extra
lock holding when writing supers in sync log code.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9f5e1cfb0209..34279665fd69 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1586,7 +1586,6 @@ struct btrfs_fs_info { atomic_t scrubs_paused; atomic_t scrub_cancel_req; wait_queue_head_t scrub_pause_wait; - struct rw_semaphore scrub_super_lock; int scrub_workers_refcnt; struct btrfs_workers scrub_workers; struct btrfs_workers scrub_wr_completion_workers; @@ -3950,9 +3949,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start, u64 end, struct btrfs_scrub_progress *progress, int readonly, int is_dev_replace); void btrfs_scrub_pause(struct btrfs_root *root); -void btrfs_scrub_pause_super(struct btrfs_root *root); void btrfs_scrub_continue(struct btrfs_root *root); -void btrfs_scrub_continue_super(struct btrfs_root *root); int btrfs_scrub_cancel(struct btrfs_fs_info *info); int btrfs_scrub_cancel_dev(struct btrfs_fs_info *info, struct btrfs_device *dev); |