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authorMing Lei <ming.lei@redhat.com>2018-03-13 17:42:41 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2018-03-14 23:31:13 -0400
commit2f31115e940c4afd49b99c33123534e2ac924ffb (patch)
tree34813dcad7d2ab489a0f3e02b15f852c6182f09d /drivers/scsi/hosts.c
parentadbe552349f2d1e48357a00e564d26135e586634 (diff)
downloadlinux-2f31115e940c4afd49b99c33123534e2ac924ffb.tar.bz2
scsi: core: introduce force_blk_mq
This patch introduces 'force_blk_mq' to the scsi_host_template so that drivers that have no desire to support the legacy I/O path can signal blk-mq only support. [mkp: commit desc] Cc: Omar Sandoval <osandov@fb.com>, Cc: "Martin K. Petersen" <martin.petersen@oracle.com>, Cc: James Bottomley <james.bottomley@hansenpartnership.com>, Cc: Christoph Hellwig <hch@lst.de>, Cc: Don Brace <don.brace@microsemi.com> Cc: Kashyap Desai <kashyap.desai@broadcom.com> Cc: Mike Snitzer <snitzer@redhat.com> Cc: Laurence Oberman <loberman@redhat.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hosts.c')
-rw-r--r--drivers/scsi/hosts.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index dd9464920456..ef22b275d050 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -474,6 +474,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
shost->dma_boundary = 0xffffffff;
shost->use_blk_mq = scsi_use_blk_mq;
+ shost->use_blk_mq = scsi_use_blk_mq || shost->hostt->force_blk_mq;
device_initialize(&shost->shost_gendev);
dev_set_name(&shost->shost_gendev, "host%d", shost->host_no);