Commit 0317d9ec authored Jul 13, 2011 by Andreas Gruenbacher Committed by Philipp Reisner Nov 08, 2012

drbd: Fix the maximum accepted minor device number

The maximum minor device number allowed by the kernel is (1<<20 - 1). Reject
device numbers higher than that to earlier catch possible errors.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

parent 32bdb640

include/linux/drbd_limits.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -137,7 +137,7 @@
		#define DRBD_AL_EXTENTS_SCALE '1'

		#define DRBD_MINOR_NUMBER_MIN -1
		#define DRBD_MINOR_NUMBER_MAX (1<<30)
		#define DRBD_MINOR_NUMBER_MAX ((1 << 20) - 1)
		#define DRBD_MINOR_NUMBER_DEF -1
		#define DRBD_MINOR_NUMBER_SCALE '1'