From: Jonathan Corbet <corbet@lwn.net>
Date: Fri, 6 Feb 2009 22:25:24 +0000 (-0700)
Subject: Use f_lock to protect f_flags
X-Git-Tag: v2.6.30-rc1~654^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db1dd4d376134eba0e08af523b61cc566a4ea1cd;p=pandora-kernel.git

Use f_lock to protect f_flags

Traditionally, changes to struct file->f_flags have been done under BKL
protection, or with no protection at all.  This patch causes all f_flags
changes after file open/creation time to be done under protection of
f_lock.  This allows the removal of some BKL usage and fixes a number of
longstanding (if microscopic) races.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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