git.stricted.de - GitHub/exynos8895/android_kernel_samsung

author	Wang Shilong <wangsl.fnst@cn.fujitsu.com>
	Fri, 25 Oct 2013 11:12:02 +0000 (19:12 +0800)
committer	Chris Mason <chris.mason@fusionio.com>
	Tue, 12 Nov 2013 03:10:13 +0000 (22:10 -0500)
commit	9b011adfe14977fcda977234609d43ca52463a3d
tree	a96feceecabdc4bb71d8ff099a4317d3f8f1d9fe	tree \| snapshot (tar.gz zip)
parent	7fdf4b608dda5eea114cb23623b52e34dd5972f5	commit \| diff

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>

fs/btrfs/ctree.h		diff \| blob \| blame \| history
fs/btrfs/disk-io.c		diff \| blob \| blame \| history
fs/btrfs/scrub.c		diff \| blob \| blame \| history
fs/btrfs/tree-log.c		diff \| blob \| blame \| history
fs/btrfs/volumes.h		diff \| blob \| blame \| history