From: Carl Henrik Lunde <chlunde@ping.uio.no>
Date: Thu, 12 Jun 2008 18:13:58 +0000 (+0200)
Subject: block: disable IRQs until data is written to relay channel
X-Git-Tag: v2.6.26-rc6~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14a73f54798f39854e521fb596da7d50b7566bbd;p=pandora-kernel.git

block: disable IRQs until data is written to relay channel

As we may run relay_reserve from interrupt context we must always disable
IRQs.  This is because a call to relay_reserve may expose previously written
data to use space.

Updated new message code and an old but related comment.

Signed-off-by: Carl Henrik Lunde <chlunde@ping.uio.no>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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