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| author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2014-03-27 16:40:36 -0400 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-05-28 18:13:25 +0200 |
| commit | a48ac9e5d4f3555bdec2fd61e49fc71b26810d68 (patch) | |
| tree | ce61a979e4ff2e0f684a25d7861bec07752200a2 /drivers/message/fusion/mptsas.c | |
| parent | ecc3bc982596cb66bd7f951e2f36503f4841c0c8 (diff) | |
| download | linux-stable-a48ac9e5d4f3555bdec2fd61e49fc71b26810d68.tar.gz linux-stable-a48ac9e5d4f3555bdec2fd61e49fc71b26810d68.tar.bz2 linux-stable-a48ac9e5d4f3555bdec2fd61e49fc71b26810d68.zip | |
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/mptsas.c')
| -rw-r--r-- | drivers/message/fusion/mptsas.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 00d339c361fc..711fcb5cec87 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1896,7 +1896,7 @@ mptsas_slave_alloc(struct scsi_device *sdev) } static int -mptsas_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) +mptsas_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) { MPT_SCSI_HOST *hd; MPT_ADAPTER *ioc; @@ -1904,11 +1904,11 @@ mptsas_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) if (!vdevice || !vdevice->vtarget || vdevice->vtarget->deleted) { SCpnt->result = DID_NO_CONNECT << 16; - done(SCpnt); + SCpnt->scsi_done(SCpnt); return 0; } - hd = shost_priv(SCpnt->device->host); + hd = shost_priv(shost); ioc = hd->ioc; if (ioc->sas_discovery_quiesce_io) @@ -1917,11 +1917,9 @@ mptsas_qcmd_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) if (ioc->debug_level & MPT_DEBUG_SCSI) scsi_print_command(SCpnt); - return mptscsih_qcmd(SCpnt,done); + return mptscsih_qcmd(SCpnt); } -static DEF_SCSI_QCMD(mptsas_qcmd) - /** * mptsas_mptsas_eh_timed_out - resets the scsi_cmnd timeout * if the device under question is currently in the |