tree 52a532aac2f925bc104bc78aab29727fd3a29742
parent babdb788f7ec1a782a52240a5f6dae568f32565f
author Anirban Chakraborty <anirban.chakraborty@qlogic.com> 1244667311 -0700
committer James Bottomley <James.Bottomley@HansenPartnership.com> 1245078572 -0500

[SCSI] qla2xxx: Resolve a performance issue in interrupt

Reverted back a change in qla*_intr_handler code that caused an increase in
cpu cycles by allowing interrupts to occur while the instance hardware lock
was being held.  Fix by taking the lock in irqsave mode.

Reported-and-tested-by: Douglas W. Styner <douglas.w.styner@intel.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>