From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 13 Dec 2006 08:34:57 +0000 (-0800)
Subject: [PATCH] tty: remove useless memory barrier
X-Git-Tag: v2.6.20-rc1~82
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34f8f0a5e953d3e40c4419e5e5c4b6fd14f7ebf2;p=pandora-kernel.git

[PATCH] tty: remove useless memory barrier

I don't see why there is a memory barrier in copy_from_read_buf() at all.
Even if it was useful spin_unlock_irqrestore implies a barrier.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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