1 files changed, 13 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h
index 434017701403..8e79296ee97a 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -159,6 +159,19 @@ static inline bool blk_discard_mergable(struct request *req)
 	return false;
 }
 
+static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q,
+						     int op)
+{
+	if (unlikely(op == REQ_OP_DISCARD || op == REQ_OP_SECURE_ERASE))
+		return min(q->limits.max_discard_sectors,
+			   UINT_MAX >> SECTOR_SHIFT);
+
+	if (unlikely(op == REQ_OP_WRITE_ZEROES))
+		return q->limits.max_write_zeroes_sectors;
+
+	return q->limits.max_sectors;
+}
+
 #ifdef CONFIG_BLK_DEV_INTEGRITY
 void blk_flush_integrity(void);
 bool __bio_integrity_endio(struct bio *);