From 9ef7ad22965fcd817b20c1332286f02362266534 Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Fri, 17 Aug 2007 14:05:27 +1000 Subject: [PATCH] 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: Rusty Russell Signed-off-by: Linus Torvalds --- drivers/block/lguest_blk.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/block/lguest_blk.c b/drivers/block/lguest_blk.c index 93e3c4001b..160cf14431 100644 --- a/drivers/block/lguest_blk.c +++ b/drivers/block/lguest_blk.c @@ -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; -- 2.39.5