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| author | Mark Rutland <mark.rutland@arm.com> | 2022-02-14 19:52:11 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-02-19 13:11:07 +0300 |
| commit | 8a69fe0be143b0a1af829f85f0e9a1ae7d6a04db (patch) | |
| tree | fc8581807db4feff86d0097630d3628a004027ba /include/linux/entry-common.h | |
| parent | 4c7485584d48f60b1e742c7c6a3a1fa503d48d97 (diff) | |
| download | linux-8a69fe0be143b0a1af829f85f0e9a1ae7d6a04db.tar.xz | |
sched/preempt: Refactor sched_dynamic_update()
Currently sched_dynamic_update needs to open-code the enabled/disabled
function names for each preemption model it supports, when in practice
this is a boolean enabled/disabled state for each function.
Make this clearer and avoid repetition by defining the enabled/disabled
states at the function definition, and using helper macros to perform the
static_call_update(). Where x86 currently overrides the enabled
function, it is made to provide both the enabled and disabled states for
consistency, with defaults provided by the core code otherwise.
In subsequent patches this will allow us to support PREEMPT_DYNAMIC
without static calls.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20220214165216.2231574-3-mark.rutland@arm.com
Diffstat (limited to 'include/linux/entry-common.h')
| -rw-r--r-- | include/linux/entry-common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h index 2e2b8d6140ed..a01ac1a0a292 100644 --- a/include/linux/entry-common.h +++ b/include/linux/entry-common.h @@ -456,6 +456,8 @@ irqentry_state_t noinstr irqentry_enter(struct pt_regs *regs); */ void irqentry_exit_cond_resched(void); #ifdef CONFIG_PREEMPT_DYNAMIC +#define irqentry_exit_cond_resched_dynamic_enabled irqentry_exit_cond_resched +#define irqentry_exit_cond_resched_dynamic_disabled NULL DECLARE_STATIC_CALL(irqentry_exit_cond_resched, irqentry_exit_cond_resched); #endif |