diff options
| author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2014-03-28 00:40:36 +0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-05-28 20:13:25 +0400 |
| commit | a48ac9e5d4f3555bdec2fd61e49fc71b26810d68 (patch) | |
| tree | ce61a979e4ff2e0f684a25d7861bec07752200a2 /drivers/message/fusion/mptscsih.c | |
| parent | ecc3bc982596cb66bd7f951e2f36503f4841c0c8 (diff) | |
| download | linux-a48ac9e5d4f3555bdec2fd61e49fc71b26810d68.tar.xz | |
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>
Diffstat (limited to 'drivers/message/fusion/mptscsih.c')
| -rw-r--r-- | drivers/message/fusion/mptscsih.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 727819cc7034..2a1c6f21af27 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1304,7 +1304,6 @@ int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host) /** * mptscsih_qcmd - Primary Fusion MPT SCSI initiator IO start routine. * @SCpnt: Pointer to scsi_cmnd structure - * @done: Pointer SCSI mid-layer IO completion function * * (linux scsi_host_template.queuecommand routine) * This is the primary SCSI IO start routine. Create a MPI SCSIIORequest @@ -1313,7 +1312,7 @@ int mptscsih_show_info(struct seq_file *m, struct Scsi_Host *host) * Returns 0. (rtn value discarded by linux scsi mid-layer) */ int -mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) +mptscsih_qcmd(struct scsi_cmnd *SCpnt) { MPT_SCSI_HOST *hd; MPT_FRAME_HDR *mf; @@ -1329,10 +1328,9 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) hd = shost_priv(SCpnt->device->host); ioc = hd->ioc; - SCpnt->scsi_done = done; - dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n", - ioc->name, SCpnt, done)); + dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p\n", + ioc->name, SCpnt)); if (ioc->taskmgmt_quiesce_io) return SCSI_MLQUEUE_HOST_BUSY; |