From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 25 Jul 2011 18:06:32 +0000 (+0000)
Subject: fs/9p: Add fid before dentry instantiation
X-Git-Tag: v3.1-rc6~30^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5441ae5eb3614d3c28f77073370738a2820c88e4;p=pandora-kernel.git

fs/9p: Add fid before dentry instantiation

d_instantiate marks the dentry positive. So a parallel lookup and mkdir of
the directory can find dentry that doesn't have fid attached. This can result
in both the code path doing v9fs_fid_add which results in v9fs_dentry leak.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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