Re: [PATCH v4 1/2] locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches

From: Davidlohr Bueso
Date: Wed Mar 28 2018 - 21:44:48 EST


On Wed, 28 Mar 2018, Waiman Long wrote:

+config DEBUG_RWSEMS
+ bool "RW Semaphore debugging: basic checks"
+ depends on DEBUG_KERNEL && RWSEM_SPIN_ON_OWNER

Why depend on RWSEM_SPIN_ON_OWNER? Doesn't everyone benefit from this?
For example, DEBUG_MUTEXES does not need it.

Thanks,
Davidlohr