Add a function to resize the tagspace for a scsi host.
Signed-off-by: Hannes Reinecke <hare@xxxxxxxx>
---
drivers/scsi/scsi_lib.c | 6 ++++++
include/scsi/scsi_host.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index e8fea8e..56c2724 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2133,6 +2133,12 @@ void scsi_mq_destroy_tags(struct Scsi_Host *shost)
blk_mq_free_tag_set(&shost->tag_set);
}
+int scsi_mq_resize_tags(struct Scsi_Host *shost, int max_tags)
+{
+ return blk_mq_resize_tag_set(&shost->tag_set, max_tags);
+}
+EXPORT_SYMBOL_GPL(scsi_mq_resize_tags);
+
/*
* Function: scsi_block_requests()
*
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 2af2397..7cdfbd7 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -826,6 +826,7 @@ static inline int scsi_host_scan_allowed(struct Scsi_Host *shost)
extern void scsi_unblock_requests(struct Scsi_Host *);
extern void scsi_block_requests(struct Scsi_Host *);
+extern int scsi_mq_resize_tags(struct Scsi_Host *, int);
struct class_container;
--
1.8.5.6
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