[tip:,locking/core] locking/rwsem: Make DEBUG_RWSEMS and PREEMPT_RT mutually exclusive
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Subject: [tip: locking/core] locking/rwsem: Make DEBUG_RWSEMS and PREEMPT_RT
mutually exclusive
Cc: Waiman Long <longman@redhat.com>, Ingo Molnar <mingo@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>, Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, linux-kernel@vger.kernel.org
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[tip:,locking/core] locking/rwsem: Make DEBUG_RWSEMS and PREEMPT_RT mutually exclusive
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Commit Message
tip-bot2 for Thomas Gleixner
Feb. 28, 2024, 12:53 p.m. UTC
The following commit has been merged into the locking/core branch of tip: Commit-ID: f22f71322a18e90e127f2fc2c11cc2d5191bc4c6 Gitweb: https://git.kernel.org/tip/f22f71322a18e90e127f2fc2c11cc2d5191bc4c6 Author: Waiman Long <longman@redhat.com> AuthorDate: Thu, 22 Feb 2024 10:05:40 -05:00 Committer: Ingo Molnar <mingo@kernel.org> CommitterDate: Wed, 28 Feb 2024 13:08:38 +01:00 locking/rwsem: Make DEBUG_RWSEMS and PREEMPT_RT mutually exclusive The debugging code enabled by CONFIG_DEBUG_RWSEMS=y will only be compiled in when CONFIG_PREEMPT_RT isn't set. There is no point to allow CONFIG_DEBUG_RWSEMS to be set in a kernel configuration where CONFIG_PREEMPT_RT is also set. Make them mutually exclusive. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240222150540.79981-5-longman@redhat.com --- lib/Kconfig.debug | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 975a07f..cb695bc 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1303,7 +1303,7 @@ config PROVE_LOCKING select DEBUG_SPINLOCK select DEBUG_MUTEXES if !PREEMPT_RT select DEBUG_RT_MUTEXES if RT_MUTEXES - select DEBUG_RWSEMS + select DEBUG_RWSEMS if !PREEMPT_RT select DEBUG_WW_MUTEX_SLOWPATH select DEBUG_LOCK_ALLOC select PREEMPT_COUNT if !ARCH_NO_PREEMPT @@ -1426,7 +1426,7 @@ config DEBUG_WW_MUTEX_SLOWPATH config DEBUG_RWSEMS bool "RW Semaphore debugging: basic checks" - depends on DEBUG_KERNEL + depends on DEBUG_KERNEL && !PREEMPT_RT help This debugging feature allows mismatched rw semaphore locks and unlocks to be detected and reported.