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libata: clear ering on resume
authorTejun Heo <tj@kernel.org>
Thu, 23 Apr 2009 00:55:28 +0000 (09:55 +0900)
committerJeff Garzik <jgarzik@redhat.com>
Mon, 11 May 2009 18:30:59 +0000 (14:30 -0400)
commit6f9c1ea2c1cea2de3e5670a7cd98d9f7316b0952
treecd0059f189700e0762c55bb4488f15a5d4f61734tree | snapshot
parent6ad58b245a543461bd55d51b8303f555419687b2commit | diff
libata: clear ering on resume

Error timestamps are in jiffies which doesn't run while suspended and
PHY events during resume isn't too uncommon.  When the two are
combined, it can lead to unnecessary speed downs if the machine is
suspended and resumed repeatedly.  Clear error history on resume.

This was reported and verified in bnc#486803 by Vladimir Botka.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Vladimir Botka <vbotka@novell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/ata/libata-eh.c diff | blob | history
Full containers within linux kernel