From: Guo Chao <yan@linux.vnet.ibm.com>
Date: Thu, 21 Feb 2013 23:16:42 +0000 (-0800)
Subject: block: use i_size_write() in bd_set_size()
X-Git-Tag: v3.9-rc1~44^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d646a02a9d44d1421f273ae3923d97b47b918176;p=pandora-kernel.git

block: use i_size_write() in bd_set_size()

blkdev_ioctl(GETBLKSIZE) uses i_size_read() to read size of block device.
If we update block size directly, reader may see intermediate result in
some machines and configurations.  Use i_size_write() instead.

Signed-off-by: Guo Chao <yan@linux.vnet.ibm.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Guo Chao <yan@linux.vnet.ibm.com>
Cc: M. Hindess <hindessm@uk.ibm.com>
Cc: Nikanth Karthikesan <knikanth@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

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