dm: remove the make_request_fn check in device_area_is_invalid (ae3cc8d8) · Commits · 戴 / test

drivers/md/dm-table.c

+0 −17

Original line number	Diff line number	Diff line
		@@ -279,7 +279,6 @@ static struct dm_dev_internal find_device(struct list_head l, dev_t dev)
		static int device_area_is_invalid(struct dm_target ti, struct dm_dev dev,
		sector_t start, sector_t len, void *data)
		{
		struct request_queue *q;
		struct queue_limits *limits = data;
		struct block_device *bdev = dev->bdev;
		sector_t dev_size =
		@@ -288,22 +287,6 @@ static int device_area_is_invalid(struct dm_target ti, struct dm_dev dev,
		limits->logical_block_size >> SECTOR_SHIFT;
		char b[BDEVNAME_SIZE];

		/*
		* Some devices exist without request functions,
		* such as loop devices not yet bound to backing files.
		* Forbid the use of such devices.
		*/
		q = bdev_get_queue(bdev);
		if (!q \|\| !q->make_request_fn) {
		DMWARN("%s: %s is not yet initialised: "
		"start=%llu, len=%llu, dev_size=%llu",
		dm_device_name(ti->table->md), bdevname(bdev, b),
		(unsigned long long)start,
		(unsigned long long)len,
		(unsigned long long)dev_size);
		return 1;
		}

		if (!dev_size)
		return 0;