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Commit 9ef7ad22 authored by Rusty Russell's avatar Rusty Russell Committed by Linus Torvalds
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Enable partitions for lguest block device 



The lguest block device only requests one minor, which means
partitions don't work (eg "root=/dev/lgba1").

Let's follow the crowd and ask for 16.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 56616ebd

drivers/block/lguest_blk.c

+6 −3
Original line number Diff line number Diff line
@@ -308,9 +308,12 @@ static int lguestblk_probe(struct lguest_device *lgdev) 
	}



	/* This allocates a "struct gendisk" where we pack all the information

	 * about the disk which the rest of Linux sees.  We ask for one minor

	 * number; I do wonder if we should be asking for more. */

	bd->disk = alloc_disk(1);

	 * about the disk which the rest of Linux sees.  The argument is the

	 * number of minor devices desired: we need one minor for the main

	 * disk, and one for each partition.  Of course, we can't possibly know

	 * how many partitions are on the disk (add_disk does that).

	 */

	bd->disk = alloc_disk(16);

	if (!bd->disk) {

		err = -ENOMEM;

		goto out_unregister_blkdev;