Merge tag 'for-5.16/bdev-size-2021-10-29' of git://git.kernel.dk/linux-block

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

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 900325a..59eabbc 100644 (file)
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -213,6 +213,8 @@ static inline int add_disk(struct gendisk *disk)
 }
 extern void del_gendisk(struct gendisk *gp);
 
+void invalidate_disk(struct gendisk *disk);
+
 void set_disk_ro(struct gendisk *disk, bool read_only);
 
 static inline int get_disk_ro(struct gendisk *disk)
@@ -221,6 +223,11 @@ static inline int get_disk_ro(struct gendisk *disk)
                test_bit(GD_READ_ONLY, &disk->state);
 }
 
+static inline int bdev_read_only(struct block_device *bdev)
+{
+       return bdev->bd_read_only || get_disk_ro(bdev->bd_disk);
+}
+
 extern void disk_block_events(struct gendisk *disk);
 extern void disk_unblock_events(struct gendisk *disk);
 extern void disk_flush_events(struct gendisk *disk, unsigned int mask);