linux-kernel - how to limit number of sectors each time

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Message-ID: <48F6B51B.2000408@alcatel-lucent.com>
Date:	Thu, 16 Oct 2008 11:29:31 +0800
From:	gshan <gshan@...atel-lucent.com>
To:	linux-kernel@...r.kernel.org
Subject: how to limit number of sectors each time

Hi All,

I want to limit requested sectors each time in function 
drivers/ide/ide-disk.c::__ide_do_rw_disk. The requested
sectors were defined in rq->nr_sectors. So how to limit or decrease 
nr_sectors for data transfer each time?

Thanks in advance,
Gavin
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