On 09/19/16 14:27, Damien Le Moal wrote:
+/*
+ * Zoned block device models (zoned limit).
+ */
+enum blk_zoned_model {
+ BLK_ZONED_NONE, /* Regular block device */
+ BLK_ZONED_HA, /* Host-aware zoned block device */
+ BLK_ZONED_HM, /* Host-managed zoned block device */
+};
[ ... ]
+static inline unsigned int blk_queue_zoned(struct request_queue *q)
+{
+ return q->limits.zoned;
+}
+
/*
* We regard a request as sync, if either a read or a sync write
*/
@@ -1354,6 +1369,16 @@ static inline unsigned int bdev_write_same(struct block_device *bdev)
return 0;
}
+static inline unsigned int bdev_zoned(struct block_device *bdev)
+{
+ struct request_queue *q = bdev_get_queue(bdev);
+
+ if (q)
+ return blk_queue_zoned(q);
+
+ return 0;
+}
Hello Damien,
Please consider changing the return type of the above two functions into
"enum blk_zoned_model" to make it clear that both return one of the
BLK_ZONED_* constants.
Thanks,
Bart.
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