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authorMing Lei <ming.lei@redhat.com>2021-01-22 05:33:11 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2021-03-05 01:36:59 +0300
commitd022d18c045fc2ccf92d0f14cf80f98eb0a8e119 (patch)
tree7088d1e6e3b1e9c37a75650be2c201be82f25277 /include/linux/blk-mq.h
parent2d13b1ea9f4affdaa7af0e0e4a1358d28f80c54f (diff)
downloadlinux-d022d18c045fc2ccf92d0f14cf80f98eb0a8e119.tar.xz
scsi: blk-mq: Add callbacks for storing & retrieving budget token
Since SCSI is the only driver which requires dispatch budget move the token from struct request to struct scsi_cmnd. Link: https://lore.kernel.org/r/20210122023317.687987-8-ming.lei@redhat.com Cc: Omar Sandoval <osandov@fb.com> Cc: Kashyap Desai <kashyap.desai@broadcom.com> Cc: Sumanesh Samanta <sumanesh.samanta@broadcom.com> Cc: Ewan D. Milne <emilne@redhat.com> Cc: Hannes Reinecke <hare@suse.de> Tested-by: Sumanesh Samanta <sumanesh.samanta@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 2c473c9b8990..5fae401f083d 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -313,6 +313,15 @@ struct blk_mq_ops {
*/
void (*put_budget)(struct request_queue *);
+ /*
+ * @set_rq_budget_toekn: store rq's budget token
+ */
+ void (*set_rq_budget_token)(struct request *, int);
+ /*
+ * @get_rq_budget_toekn: retrieve rq's budget token
+ */
+ int (*get_rq_budget_token)(struct request *);
+
/**
* @timeout: Called on request timeout.
*/