diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-08-15 23:29:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-08-17 19:05:29 +0200 |
| commit | bb630f9f7a7d43869e4e7f5e4c002207396aea59 (patch) | |
| tree | d340e0cebbaf9721f6379f6165e79de44a15ec45 /lib | |
| parent | f8635d509d807c0a9deb273e19bc5a8a19c52895 (diff) | |
| download | linux-bb630f9f7a7d43869e4e7f5e4c002207396aea59.tar.bz2 | |
locking/rtmutex: Add mutex variant for RT
Add the necessary defines, helpers and API functions for replacing struct mutex on
a PREEMPT_RT enabled kernel with an rtmutex based variant.
No functional change when CONFIG_PREEMPT_RT=n
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211305.081517417@linutronix.de
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 5ddd575159fb..e5cdf98f50c2 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1235,7 +1235,7 @@ config PROVE_LOCKING depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT select LOCKDEP select DEBUG_SPINLOCK - select DEBUG_MUTEXES + select DEBUG_MUTEXES if !PREEMPT_RT select DEBUG_RT_MUTEXES if RT_MUTEXES select DEBUG_RWSEMS select DEBUG_WW_MUTEX_SLOWPATH @@ -1299,7 +1299,7 @@ config LOCK_STAT depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT select LOCKDEP select DEBUG_SPINLOCK - select DEBUG_MUTEXES + select DEBUG_MUTEXES if !PREEMPT_RT select DEBUG_RT_MUTEXES if RT_MUTEXES select DEBUG_LOCK_ALLOC default n @@ -1335,7 +1335,7 @@ config DEBUG_SPINLOCK config DEBUG_MUTEXES bool "Mutex debugging: basic checks" - depends on DEBUG_KERNEL + depends on DEBUG_KERNEL && !PREEMPT_RT help This feature allows mutex semantics violations to be detected and reported. @@ -1345,7 +1345,8 @@ config DEBUG_WW_MUTEX_SLOWPATH depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT select DEBUG_LOCK_ALLOC select DEBUG_SPINLOCK - select DEBUG_MUTEXES + select DEBUG_MUTEXES if !PREEMPT_RT + select DEBUG_RT_MUTEXES if PREEMPT_RT help This feature enables slowpath testing for w/w mutex users by injecting additional -EDEADLK wound/backoff cases. Together with @@ -1368,7 +1369,7 @@ config DEBUG_LOCK_ALLOC bool "Lock debugging: detect incorrect freeing of live locks" depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT select DEBUG_SPINLOCK - select DEBUG_MUTEXES + select DEBUG_MUTEXES if !PREEMPT_RT select DEBUG_RT_MUTEXES if RT_MUTEXES select LOCKDEP help |