Merge branch 'stable/128gb.v5.1' into stable/for-linus-3.7

[~andy/linux] / fs / inode.c

diff --git a/fs/inode.c b/fs/inode.c
index 74d7c20fac88b3ba74d32a31f8537d7f15e8cc3d..ac8d904b3f1624bfa945ba088d2909e740e16a6c 100644 (file)
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1553,6 +1553,8 @@ void touch_atime(struct path *path)
         * Btrfs), but since we touch atime while walking down the path we
         * really don't care if we failed to update the atime of the file,
         * so just ignore the return value.
+        * We may also fail on filesystems that have the ability to make parts
+        * of the fs read only, e.g. subvolumes in Btrfs.
         */
        update_time(inode, &now, S_ATIME);
        __mnt_drop_write(mnt);