Commit ad1ba2a0 authored Dec 15, 2015 by Zhao Lei Committed by Chris Mason Jan 19, 2016

btrfs: Use direct way to determine raid56 write/recover mode



Old code used bbio->raid_map to determine whether in raid56
write/recover operation, because we didn't't have bbio->map_type.

Now we have direct way for this condition, rid of using
the function-relative data, and make the code more readable.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

parent 94a97dfe

fs/btrfs/volumes.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -6068,7 +6068,8 @@ int btrfs_map_bio(struct btrfs_root root, int rw, struct bio bio,
		bbio->fs_info = root->fs_info;
		atomic_set(&bbio->stripes_pending, bbio->num_stripes);

		if (bbio->raid_map) {
		if ((bbio->map_type & BTRFS_BLOCK_GROUP_RAID56_MASK) &&
		((rw & WRITE) \|\| (mirror_num > 1))) {
		/* In this case, map_length has been set to the length of
		a single stripe; not the whole write */
		if (rw & WRITE) {