[Drbd-dev] [PATCH 06/11] drbd: Allow to create devices with a minor number > minor_count

Philipp Reisner philipp.reisner at linbit.com
Fri Oct 14 23:57:47 CEST 2011

From: Andreas Gruenbacher <agruen at linbit.com>

The minor_count module/kernel parameter serves to scale the size of drbd's
internal memory pool, but it is no longer a limit for the number of minors or
the minor number.  (Minor numbers can be arbitrarily high within the allowed
limit of 2^20.)

Signed-off-by: Philipp Reisner <philipp.reisner at linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg at linbit.com>
 drivers/block/drbd/drbd_nl.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 3250c8f..4e0c914 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -3086,8 +3086,7 @@ int drbd_adm_add_minor(struct sk_buff *skb, struct genl_info *info)
 	if (retcode != NO_ERROR)
 		goto out;
-	/* FIXME drop minor_count parameter, limit to MINORMASK */
-	if (dh->minor >= minor_count) {
+	if (dh->minor > MINORMASK) {
 		drbd_msg_put_info("requested minor out of range");
 		goto out;

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