From: Stephen Cameron Date: Fri, 23 Jan 2015 22:43:14 +0000 (-0600) Subject: hpsa: do not request device rescan on every ioaccel path error X-Git-Tag: fixes-v4.0-rc1~143^2~31 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7acf570ce51a5ebee55ef72e77916afdb4a351a7;p=pandora-kernel.git hpsa: do not request device rescan on every ioaccel path error The original reasoning behind doing this was faulty. An error of some sort would be encountered, accelerated i/o would be disabled for that logical drive, the command would be kicked back out to the SCSI midlayer for a retry, and since i/o accelerator mode was disabled, it would get retried down the RAID path. However, something needs to turn ioaccellerator mode back on, and this rescan request was what did that. However, it was racy, and extremely bad for performance to rescan all devices, so, don't do that. Reviewed-by: Scott Teel Signed-off-by: Don Brace Signed-off-by: Christoph Hellwig --- Reading git-diff-tree failed