[PATCH] dm: Handle READA requests in dm-mpath.c

[pandora-kernel.git] / drivers / md / dm-mpath.c

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 1e97b3c..0c1b852 100644 (file)
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -985,6 +985,9 @@ static int do_end_io(struct multipath *m, struct bio *bio,
        if (!error)
                return 0;       /* I/O complete */
 
+       if ((error == -EWOULDBLOCK) && bio_rw_ahead(bio))
+               return error;
+
        spin_lock(&m->lock);
        if (!m->nr_valid_paths) {
                if (!m->queue_if_no_path || m->suspended) {