linux-kernel - [PATCH 0/5 -tip] umount

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Message-Id: <1240513925-5603-1-git-send-email-abogani@texware.it>
Date:	Thu, 23 Apr 2009 21:12:00 +0200
From:	Alessio Igor Bogani <abogani@...ware.it>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Jonathan Corbet <corbet@....net>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	LFSDEV <linux-fsdevel@...r.kernel.org>,
	Alessio Igor Bogani <abogani@...ware.it>
Subject: [PATCH 0/5 -tip] umount_begin BKL pushdown

Push the BKL acquisition from vfs to every specific filesystems
with hope that it can be eliminated in a second moment.

The first 4 patches add BKL lock into umount_begin() functions (for
the filesystems that have this handler). The last one remove
lock_kernel()/unlock_kernel() from fs/namespace.c (the only point
that invoke umount_begin() funtcions).
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