diff mbox

[1/3] blk-mq: export blk_mq_map_queues

Message ID 1478009569-19026-2-git-send-email-hch@lst.de (mailing list archive)
State New, archived
Headers show

Commit Message

Christoph Hellwig Nov. 1, 2016, 2:12 p.m. UTC 
This will allow SCSI to have a single blk_mq_ops structure that either
lets the LLDD map the queues to PCIe MSIx vectors or use the default.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 block/blk-mq-cpumap.c  | 1 +
 block/blk-mq.h         | 1 -
 include/linux/blk-mq.h | 1 +
 3 files changed, 2 insertions(+), 1 deletion(-)

Comments

Martin K. Petersen Nov. 1, 2016, 3:53 p.m. UTC | #1 
>>>>> "Christoph" == Christoph Hellwig <hch@lst.de> writes:

Christoph> This will allow SCSI to have a single blk_mq_ops structure
Christoph> that either lets the LLDD map the queues to PCIe MSIx vectors
Christoph> or use the default.

Jens, any objection to me funneling this change through the SCSI tree?
Sagi Grimberg Nov. 1, 2016, 4 p.m. UTC | #2 
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
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Jens Axboe Nov. 1, 2016, 4:02 p.m. UTC | #3 
On Tue, Nov 01 2016, Martin K. Petersen wrote:
> >>>>> "Christoph" == Christoph Hellwig <hch@lst.de> writes:
> 
> Christoph> This will allow SCSI to have a single blk_mq_ops structure
> Christoph> that either lets the LLDD map the queues to PCIe MSIx vectors
> Christoph> or use the default.
> 
> Jens, any objection to me funneling this change through the SCSI tree?

No, that's fine, you can add my reviewed-by.
diff mbox

Patch

diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 19b1d9c..8e61e86 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -87,6 +87,7 @@  int blk_mq_map_queues(struct blk_mq_tag_set *set)
 	free_cpumask_var(cpus);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(blk_mq_map_queues);
 
 /*
  * We have no quick way of doing reverse lookups. This is only used at
diff --git a/block/blk-mq.h b/block/blk-mq.h
index e5d2524..5347f01 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -38,7 +38,6 @@  void blk_mq_disable_hotplug(void);
 /*
  * CPU -> queue mappings
  */
-int blk_mq_map_queues(struct blk_mq_tag_set *set);
 extern int blk_mq_hw_queue_to_node(unsigned int *map, unsigned int);
 
 static inline struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *q,
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 535ab2e..6c0fb25 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -237,6 +237,7 @@  void blk_mq_unfreeze_queue(struct request_queue *q);
 void blk_mq_freeze_queue_start(struct request_queue *q);
 int blk_mq_reinit_tagset(struct blk_mq_tag_set *set);
 
+int blk_mq_map_queues(struct blk_mq_tag_set *set);
 void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues);
 
 /*