tree 6e49d7e80c9b3f847a3d6bd84ccbf70614a2ef1d
parent 5278b50cea851d8264b7b28212a483328650476f
author Nate Dailey <nate.dailey@stratus.com> 1171581226 -0500
committer Jeff Garzik <jeff@garzik.org> 1171581226 -0500

sata_vsc: use default cache line size if non-zero

This modifies drivers/ata/sata_vsc.c to only set the cache line size
to 0x80 if the default value is zero. Apparently zero isn't allowed
due to a bug in the chip, but I've found performance is much better
with the (non-zero) default instead of 0x80.

[note1: "default" means BIOS-programmed value, in this context -jgarzik]

[note2: superfluous braces were removed from the patch -jg]

Signed-off-by: Nate Dailey <nate.dailey@stratus.com>
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>