From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 11 Mar 2011 17:08:24 +0000 (-0500)
Subject: open-style analog of vfs_path_lookup()
X-Git-Tag: v2.6.39-rc1~514^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73d049a40fc6269189c4e2ba6792cb5dd054883c;p=pandora-kernel.git

open-style analog of vfs_path_lookup()

new function: file_open_root(dentry, mnt, name, flags) opens the file
vfs_path_lookup would arrive to.

Note that name can be empty; in that case the usual requirement that
dentry should be a directory is lifted.

open-coded equivalents switched to it, may_open() got down exactly
one caller and became static.

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