Messages in this thread Patch in this message | | | From | Mark Rutland <> | Subject | [PATCH 4/6] sched/preempt: decouple HAVE_PREEMPT_DYNAMIC from GENERIC_ENTRY | Date | Tue, 9 Nov 2021 17:24:06 +0000 |
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Now that the enabled/disabled states for the preemption functions are declared alongside their definitions, the core PREEMPT_DYNAMIC logic is no longer tied to GENERIC_ENTRY, and can safely be selected so long as an architecture provides enabled/disabled states for irqentry_exit_cond_resched().
Make it possible to select HAVE_PREEMPT_DYNAMIC without GENERIC_ENTRY.
For existing users of HAVE_PREEMPT_DYNAMIC there should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> --- arch/Kconfig | 1 - kernel/sched/core.c | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/Kconfig b/arch/Kconfig index 26b8ed11639d..f3fb543d5da0 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -1266,7 +1266,6 @@ config HAVE_STATIC_CALL_INLINE config HAVE_PREEMPT_DYNAMIC bool depends on HAVE_STATIC_CALL - depends on GENERIC_ENTRY help Select this if the architecture support boot time preempt setting on top of static calls. It is strongly advised to support inline diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 3a1caa9a095a..ff28f4bd7192 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8102,7 +8102,9 @@ EXPORT_SYMBOL(__cond_resched_rwlock_write); #ifdef CONFIG_PREEMPT_DYNAMIC +#ifdef CONFIG_GENERIC_ENTRY #include <linux/entry-common.h> +#endif /* * SC:cond_resched -- 2.11.0
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