From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 23 May 2013 08:38:22 +0000 (-0400)
Subject: zoran: racy refcount handling in vm_ops ->open()/->close()
X-Git-Tag: v3.10-rc4~6^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ad1f70ebcdb69393ce083f514bf4a4a3a3e65cb;p=pandora-kernel.git

zoran: racy refcount handling in vm_ops ->open()/->close()

worse, we lock ->resource_lock too late when we are destroying the
final clonal VMA; the check for lack of other mappings of the same
opened file can race with mmap().

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