Btrfs: Handle checksumming errors while reading data blocks

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 2f159375c878..866460c3d72c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1534,6 +1534,15 @@ static int end_bio_extent_readpage(struct bio *bio,
                         if (ret)
                                 uptodate = 0;
                 }
+                if (!uptodate && tree->ops &&
+                    tree->ops->readpage_io_failed_hook) {
+                        ret = tree->ops->readpage_io_failed_hook(bio, page,
+                                                         start, end, state);
+                        if (ret == 0) {
+                                state = NULL;
+                                continue;
+                        }
+                }
 
                 spin_lock_irqsave(&tree->lock, flags);
                 if (!state || state->end != end) {