FALLOC_FL_PUNCH_HOLE changes file content, so it looks strange we skip such the operations, when we are doing freeze_super(). Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> --- drivers/block/loop.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 1e6edd568214..741e0a7bce41 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -434,7 +434,9 @@ static int lo_discard(struct loop_device *lo, struct request *rq, loff_t pos) goto out; } + file_start_write(file); ret = file->f_op->fallocate(file, mode, pos, blk_rq_bytes(rq)); + file_end_write(file); if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP)) ret = -EIO; out:
