From: Miklos Szeredi <mszeredi@suse.cz>
Date: Mon, 21 May 2012 15:30:05 +0000 (+0200)
Subject: vfs: split do_lookup()
X-Git-Tag: v3.5-rc1~15^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=697f514df10b0f46bcd7596c1be18b7e2e9b28bb;p=pandora-kernel.git

vfs: split do_lookup()

Split do_lookup() into two functions:

  lookup_fast() - does cached lookup without i_mutex
  lookup_slow() - does lookup with i_mutex

Both follow managed dentries.

The new functions are needed by atomic_open.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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