From ad84db2e2e1817bb8a29e7c9108eb66bf023d99f Mon Sep 17 00:00:00 2001
From: bo yang <bo.yang@lsi.com>
Date: Fri, 9 Nov 2007 04:40:16 -0500
Subject: [PATCH] [SCSI] megaraid_sas: support for poll_mode_io (reduced
 interrupt)

Added module parameter "poll_mode_io" to support for "polling"
(reduced interrupt operation).  In this mode, IO completion interrupts
are delayed. At the end of initiating IOs, the driver schedules for
cmd completion if there are pending cmds.  A timer-based interrupt has
also been added to prevent IO completion from being delayed
indefinitely in the case that no new IOs are initiated.  Some
formatting issues in resume, suspend comment block also corrected

Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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