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drbd: Fix the maximum accepted minor device number

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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>
This commit is contained in:
Andreas Gruenbacher 2011-07-13 13:40:30 +02:00 committed by Philipp Reisner
parent 32bdb64038
commit 0317d9ecbc
1 changed files with 1 additions and 1 deletions
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2
include/linux/drbd_limits.h
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@ -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'