tree 11a45a75c858894fcfdbf40e320d860d7f28c166
parent cda309de253f338b04d15b4478e45fc3a0fcc7a3
author Al Viro <viro@zeniv.linux.org.uk> 1333130656 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1333224196 -0400

untangling do_lookup() - isolate !dentry stuff from the rest of it.

Duplicate the revalidation-related parts into if (!dentry) branch.
Next step will be to pull them under i_mutex.

This and the next 8 commits are more or less a splitup of patch
by Miklos; folks, when you are working with something that convoluted,
carve your patches up into easily reviewed steps, especially when
a lot of codepaths involved are rarely hit...

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