From a48ac9e5d4f3555bdec2fd61e49fc71b26810d68 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew.r.wilcox@intel.com>
Date: Thu, 27 Mar 2014 16:40:36 -0400
Subject: fusion: Remove use of DEF_SCSI_QCMD
Removing the host_lock from the I/O submission path gives a huge
scalability improvement.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org>
Reviewed-by: Praveen Krishnamoorthy <Praveen.krishnamoorthy@lsi.com>
Acked-by: Sreekanth Reddy <Sreekanth.reddy@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/message/fusion/mptfc.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
(limited to 'drivers/message/fusion/mptfc.c')
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index fd75108c355..02a3eefd693 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -649,7 +649,7 @@ mptfc_slave_alloc(struct scsi_device *sdev)
}
static int
-mptfc_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
+mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt)
{
struct mptfc_rport_info *ri;
struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
@@ -658,14 +658,14 @@ mptfc_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
if (!vdevice || !vdevice->vtarget) {
SCpnt->result = DID_NO_CONNECT << 16;
- done(SCpnt);
+ SCpnt->scsi_done(SCpnt);
return 0;
}
err = fc_remote_port_chkready(rport);
if (unlikely(err)) {
SCpnt->result = err;
- done(SCpnt);
+ SCpnt->scsi_done(SCpnt);
return 0;
}
@@ -673,15 +673,13 @@ mptfc_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
ri = *((struct mptfc_rport_info **)rport->dd_data);
if (unlikely(!ri)) {
SCpnt->result = DID_IMM_RETRY << 16;
- done(SCpnt);
+ SCpnt->scsi_done(SCpnt);
return 0;
}
- return mptscsih_qcmd(SCpnt,done);
+ return mptscsih_qcmd(SCpnt);
}
-static DEF_SCSI_QCMD(mptfc_qcmd)
-
/*
* mptfc_display_port_link_speed - displaying link speed
* @ioc: Pointer to MPT_ADAPTER structure
--
cgit v1.2.3-70-g09d2