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smp: Cleanup smp_call_function*()

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Get rid of the __call_single_node union and cleanup the API a little
to avoid external code relying on the structure layout as much.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
This commit is contained in:
Peter Zijlstra
2020-06-15 11:29:31 +02:00
parent 7a9f50a058
commit 545b8c8df4
13 changed files with 61 additions and 95 deletions
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6
kernel/debug/debug_core.c
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@@ -225,8 +225,6 @@ NOKPROBE_SYMBOL(kgdb_skipexception);
* Default (weak) implementation for kgdb_roundup_cpus
*/
static DEFINE_PER_CPU(call_single_data_t, kgdb_roundup_csd);
void __weak kgdb_call_nmi_hook(void *ignored)
{
/*
@@ -241,6 +239,9 @@ void __weak kgdb_call_nmi_hook(void *ignored)
}
NOKPROBE_SYMBOL(kgdb_call_nmi_hook);
static DEFINE_PER_CPU(call_single_data_t, kgdb_roundup_csd) =
CSD_INIT(kgdb_call_nmi_hook, NULL);
void __weak kgdb_roundup_cpus(void)
{
call_single_data_t *csd;
@@ -267,7 +268,6 @@ void __weak kgdb_roundup_cpus(void)
continue;
kgdb_info[cpu].rounding_up = true;
csd->func = kgdb_call_nmi_hook;
ret = smp_call_function_single_async(cpu, csd);
if (ret)
kgdb_info[cpu].rounding_up = false;