btrfs: replace EINVAL with ERANGE for resize when ULLONG_MAX

To be accurate about the error case,
if the new size is beyond ULLONG_MAX, return ERANGE instead of EINVAL.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 219e26f..55f4d71 100644 (file)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1593,7 +1593,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
                new_size = old_size - new_size;
        } else if (mod > 0) {
                if (new_size > ULLONG_MAX - old_size) {
-                       ret = -EINVAL;
+                       ret = -ERANGE;
                        goto out_free;
                }
                new_size = old_size + new_size;