From ad1ba2a0c453db255f04b17101db6d05c44d8467 Mon Sep 17 00:00:00 2001 From: Zhao Lei Date: Tue, 15 Dec 2015 18:18:09 +0800 Subject: [PATCH] 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 Signed-off-by: Chris Mason --- fs/btrfs/volumes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 7a769ca04f3f..366b335946fa 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -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) { -- 2.20.1