tree 08ffc4b16ad2d00069189440dbfd4b893e2cc96e
parent 37c17e1f377696c797e75c1e915e838b3e0c6120
author Al Viro <viro@zeniv.linux.org.uk> 1333131195 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1333224196 -0400

untangling do_lookup() - eliminate a loop.

d_lookup() *will* fail after successful d_invalidate(), if we are
holding i_mutex all along.  IOW, we don't need to jump back to
l: - we know what path will be taken there and can do that (i.e.
d_alloc_and_lookup()) directly.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>