diff options
| -rw-r--r-- | drivers/block/loop.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 55bea9c95b45..cf80cdf5e440 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -203,8 +203,9 @@ static void __loop_update_dio(struct loop_device *lo, bool dio) if (lo->use_dio == use_dio) return; - /* flush dirty pages before changing direct IO */ - vfs_fsync(lo->lo_backing_file, 0); + /* flush dirty pages before starting to use direct I/O */ + if (use_dio) + vfs_fsync(lo->lo_backing_file, 0); /* * The flag of LO_FLAGS_DIRECT_IO is handled similarly with |