block: remove invalidate_partition

invalidate_partition has two callers, one of which already performs
the remove_inode_hash just after the call.  Just open code the
function in the two callsites.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210406062303.811835-3-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/genhd.c

@@ -646,18 +646,6 @@ void device_add_disk_no_queue_reg(struct device *parent, struct gendisk *disk)
 }
 EXPORT_SYMBOL(device_add_disk_no_queue_reg);
 
-static void invalidate_partition(struct block_device *bdev)
-{
-	fsync_bdev(bdev);
-	__invalidate_device(bdev, true);
-
-	/*
-	 * Unhash the bdev inode for this device so that it can't be looked
-	 * up any more even if openers still hold references to it.
-	 */
-	remove_inode_hash(bdev->bd_inode);
-}
-
 /**
  * del_gendisk - remove the gendisk
  * @disk: the struct gendisk to remove
@@ -699,12 +687,21 @@ void del_gendisk(struct gendisk *disk)
 	/* invalidate stuff */
 	disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
 	while ((part = disk_part_iter_next(&piter))) {
-		invalidate_partition(part);
+		fsync_bdev(part);
+		__invalidate_device(part, true);
 		delete_partition(part);
 	}
 	disk_part_iter_exit(&piter);
 
-	invalidate_partition(disk->part0);
+	fsync_bdev(disk->part0);
+	__invalidate_device(disk->part0, true);
+
+	/*
+	 * Unhash the bdev inode for this device so that it can't be looked
+	 * up any more even if openers still hold references to it.
+	 */
+	remove_inode_hash(disk->part0->bd_inode);
+
 	set_capacity(disk, 0);
 	disk->flags &= ~GENHD_FL_UP;
 	up_write(&bdev_lookup_sem);