Btrfs: fix abnormal long waiting in fsync

[karo-tx-linux.git] / fs / bio-integrity.c

diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index b355b98dbf1b4dcf8d0ce70683af0d97db5c3e59..1c2ce0c8771133194ecb9d91517a7dd67c571765 100644 (file)
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -182,6 +182,9 @@ static int bdev_integrity_enabled(struct block_device *bdev, int rw)
  */
 int bio_integrity_enabled(struct bio *bio)
 {
+       if (!bio_is_rw(bio))
+               return 0;
+
        /* Already protected? */
        if (bio_integrity(bio))
                return 0;