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Enable partitions for lguest block device

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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: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rusty Russell 2007-08-17 14:05:27 +10:00 committed by Linus Torvalds
parent 56616ebd0e
commit 9ef7ad2296
1 changed files with 6 additions and 3 deletions
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9
drivers/block/lguest_blk.c
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@ -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;