From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon, 18 Nov 2013 13:11:42 +0000 (+0900)
Subject: bio: fix argument of __bio_add_page() for max_sectors > 0xffff
X-Git-Tag: v3.13-rc1~30^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34f2fd8dfe6185b0eaaf7d661281713a6170b077;p=pandora-kernel.git

bio: fix argument of __bio_add_page() for max_sectors > 0xffff

The data type of max_sectors and max_hw_sectors in queue settings are
unsigned int.  But these values are passed to __bio_add_page() as an
argument whose data type is unsigned short.  In the worst case such as
max_sectors is 0x10000, bio_add_page() can't add a page and IOs can't
proceed.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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