block: Introduce blk_rq_is_seq_zoned_write()

[linux-2.6-microblaze.git] / include / linux / blk-mq.h

diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index e4a2119..49d14b1 100644 (file)
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -1164,6 +1164,18 @@ static inline unsigned int blk_rq_zone_is_seq(struct request *rq)
        return disk_zone_is_seq(rq->q->disk, blk_rq_pos(rq));
 }
 
+/**
+ * blk_rq_is_seq_zoned_write() - Check if @rq requires write serialization.
+ * @rq: Request to examine.
+ *
+ * Note: REQ_OP_ZONE_APPEND requests do not require serialization.
+ */
+static inline bool blk_rq_is_seq_zoned_write(struct request *rq)
+{
+       return op_needs_zoned_write_locking(req_op(rq)) &&
+               blk_rq_zone_is_seq(rq);
+}
+
 bool blk_req_needs_zone_write_lock(struct request *rq);
 bool blk_req_zone_write_trylock(struct request *rq);
 void __blk_req_zone_write_lock(struct request *rq);
@@ -1194,6 +1206,11 @@ static inline bool blk_req_can_dispatch_to_zone(struct request *rq)
        return !blk_req_zone_is_write_locked(rq);
 }
 #else /* CONFIG_BLK_DEV_ZONED */
+static inline bool blk_rq_is_seq_zoned_write(struct request *rq)
+{
+       return false;
+}
+
 static inline bool blk_req_needs_zone_write_lock(struct request *rq)
 {
        return false;