1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 1f87c4d0e7a0..47fdba7853c3 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2286,7 +2286,7 @@ static void end_bio_extent_readpage(struct bio *bio, int err)
                 }
                 if (!uptodate) {
                         u64 failed_mirror;
-                        failed_mirror = (u64)bio->bi_bdev;
+                        failed_mirror = (unsigned long)bio->bi_bdev;
                         if (tree->ops && tree->ops->readpage_io_failed_hook)
                                 ret = tree->ops->readpage_io_failed_hook(
                                                 bio, page, start, end,