block: add a bdev_discard_granularity helper

[platform/kernel/linux-starfive.git] / include / linux / blkdev.h

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 767ab22..f1cf557 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1257,6 +1257,11 @@ static inline unsigned int bdev_max_discard_sectors(struct block_device *bdev)
        return bdev_get_queue(bdev)->limits.max_discard_sectors;
 }
 
+static inline unsigned int bdev_discard_granularity(struct block_device *bdev)
+{
+       return bdev_get_queue(bdev)->limits.discard_granularity;
+}
+
 static inline unsigned int bdev_write_zeroes_sectors(struct block_device *bdev)
 {
        struct request_queue *q = bdev_get_queue(bdev);