From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 4 Mar 2011 19:39:30 +0000 (-0500)
Subject: make nameidata_dentry_drop_rcu_maybe() always leave RCU mode
X-Git-Tag: v2.6.39-rc1~514^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7472baba22dd5d68580f528374f93421b33667e;p=pandora-kernel.git

make nameidata_dentry_drop_rcu_maybe() always leave RCU mode

Now we have do_follow_link() guaranteed to leave without dangling RCU
and the next step will get LOOKUP_RCU logics completely out of
link_path_walk().

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