From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Mon, 20 Dec 2010 16:44:45 +0000 (+0200)
Subject: [SCSI] st: Increase success probability in driver buffer allocation
X-Git-Tag: v2.6.38-rc1~27^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=46081b166415acb66d4b3150ecefcd9460bb48a1;p=pandora-kernel.git

[SCSI] st: Increase success probability in driver buffer allocation

Modify allocation to try the minimum possible page order allowed by the HBA
scatter/gather segment limit in allocation of the driver's internal
buffer. This increases the probability of successful allocation. The
allocation may still fail if this minimum order is > 0.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Kai Makisara <kai.makisara@kolumbus.fi>
Reported-by: Lukas Kolbe <lkolbe@techfak.uni-bielefeld.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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