From: Xiaotian Feng <dfeng@redhat.com>
Date: Fri, 17 Jul 2009 07:26:26 +0000 (+0800)
Subject: block: sysfs fix mismatched queue_var_{store,show} in 64bit kernel
X-Git-Tag: v2.6.31-rc4~8^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9cb308ce8d32a1fb3600acab6034e19a90228743;p=pandora-kernel.git

block: sysfs fix mismatched queue_var_{store,show} in 64bit kernel

In blk-sysfs.c, queue_var_store uses unsigned long to store data,
but queue_var_show uses unsigned int to show data.  This causes,

	# echo 70000000000 > /sys/block/<dev>/queue/read_ahead_kb
	# cat /sys/block/<dev>/queue/read_ahead_kb => get wrong value

Fix it by using unsigned long.

While at it, convert queue_rq_affinity_show() such that it uses bool
variable instead of explicit != 0 testing.

Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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