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-rw-r--r--fs/btrfs/raid56.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 945e940d2368..7b382eeada72 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -600,6 +600,25 @@ static int rbio_can_merge(struct btrfs_raid_bio *last,
if (last->operation == BTRFS_RBIO_REBUILD_MISSING)
return 0;
+ if (last->operation == BTRFS_RBIO_READ_REBUILD) {
+ int fa = last->faila;
+ int fb = last->failb;
+ int cur_fa = cur->faila;
+ int cur_fb = cur->failb;
+
+ if (last->faila >= last->failb) {
+ fa = last->failb;
+ fb = last->faila;
+ }
+
+ if (cur->faila >= cur->failb) {
+ cur_fa = cur->failb;
+ cur_fb = cur->faila;
+ }
+
+ if (fa != cur_fa || fb != cur_fb)
+ return 0;
+ }
return 1;
}