On Tue, Aug 08, 2023 at 09:30:59PM -0700, Hugh Dickins wrote: > tmpfs wants to support limited user extended attributes, but kernfs > (or cgroupfs, the only kernfs with KERNFS_ROOT_SUPPORT_USER_XATTR) > already supports user extended attributes through simple xattrs: but > limited by a policy (128KiB per inode) too liberal to be used on tmpfs. > > To allow a different limiting policy for tmpfs, without affecting the > policy for kernfs, change simple_xattr_set() to return the replaced or > removed xattr (if any), leaving the caller to update their accounting > then free the xattr (by simple_xattr_free(), renamed from the static > free_simple_xattr()). > > Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx> > --- Seems good enough, Reviewed-by: Christian Brauner <brauner@xxxxxxxxxx>
