scsi: block: Add a queue_max_bytes() helper

[linux-2.6-microblaze.git] / include / linux / blkdev.h

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e2b972a..9971796 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1373,6 +1373,11 @@ static inline unsigned int queue_max_sectors(const struct request_queue *q)
        return q->limits.max_sectors;
 }
 
+static inline unsigned int queue_max_bytes(struct request_queue *q)
+{
+       return min_t(unsigned int, queue_max_sectors(q), INT_MAX >> 9) << 9;
+}
+
 static inline unsigned int queue_max_hw_sectors(const struct request_queue *q)
 {
        return q->limits.max_hw_sectors;