From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 30 Mar 2012 18:13:15 +0000 (-0400)
Subject: untangling do_lookup() - eliminate a loop.
X-Git-Tag: v3.4-rc1~2^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=acc9cb3cd425f479d8fc4a441bff45dce23aa6dd;p=pandora-kernel.git

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>
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