locking/rtmutex: Add mutex variant for RT

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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

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Thomas Gleixner 2021-08-15 23:29:01 +02:00 • committed by Ingo Molnar

parent f8635d509d

commit bb630f9f7a

4 changed files with 187 additions and 16 deletions

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66

include/linux/mutex.h

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4

kernel/locking/mutex.c

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122

kernel/locking/rtmutex_api.c

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11

lib/Kconfig.debug

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