From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 17 Jul 2011 03:37:20 +0000 (-0400)
Subject: cifs: build_path_from_dentry() race fix
X-Git-Tag: v3.0~18^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc137bf553dbb6855bd7efc34fedcd03102455f7;p=pandora-kernel.git

cifs: build_path_from_dentry() race fix

deal with d_move() races properly; rename_lock read-retry loop,
rcu_read_lock() held while walking to root, d_lock held over
subtraction from namelen and copying the component to stabilize
->d_name.

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