From: Tejun Heo <htejun@gmail.com>
Date: Sun, 12 Feb 2006 14:32:59 +0000 (+0900)
Subject: [PATCH] libata: add per-device max_sectors
X-Git-Tag: v2.6.17-rc1~1182^2~61
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b00eec1d58ee71131375bfeb86e64bceec3f5618;p=pandora-kernel.git

[PATCH] libata: add per-device max_sectors

If a low level driver wants to control max_sectors, it had to adjust
ap->host->max_sectors and set ATA_DFLAG_LOCK_SECTORS to tell
ata_scsi_slave_config not to override the limit.  This is not only
cumbersome but also incorrect for hosts which support more than one
devices per port.

This patch adds per-device ->max_sectors.  If the field is unset
(zero), libata core layer will adjust ->max_sectors according to
default rules.  If the field is set, libata honors the setting.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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