git: 5b61ef94d65a - main - smp: add smp_rendezvous_cpu helper function

The branch main has been updated by aokblast:

URL: https://cgit.FreeBSD.org/src/commit/?id=5b61ef94d65a3ddace0082ad31c5d74f62293af6

commit 5b61ef94d65a3ddace0082ad31c5d74f62293af6
Author:     ShengYi Hung <aokblast@FreeBSD.org>
AuthorDate: 2026-01-05 16:33:04 +0000
Commit:     ShengYi Hung <aokblast@FreeBSD.org>
CommitDate: 2026-01-16 14:38:12 +0000

    smp: add smp_rendezvous_cpu helper function
    
    Reviewed by:    olce
    Approved by:    markj (mentor)
    MFC after:      2 weeks
    Differential Revision:  https://reviews.freebsd.org/D54551
---
 sys/kern/subr_smp.c | 13 +++++++++++++
 sys/sys/smp.h       |  8 +++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/sys/kern/subr_smp.c b/sys/kern/subr_smp.c
index 9f5106316018..353a69435971 100644
--- a/sys/kern/subr_smp.c
+++ b/sys/kern/subr_smp.c
@@ -624,6 +624,19 @@ smp_rendezvous_cpus(cpuset_t map,
 	mtx_unlock_spin(&smp_ipi_mtx);
 }
 
+void
+smp_rendezvous_cpu(u_int cpuid,
+	void (* setup_func)(void *),
+	void (* action_func)(void *),
+	void (* teardown_func)(void *),
+	void *arg)
+{
+	cpuset_t set;
+
+	CPU_SETOF(cpuid, &set);
+	smp_rendezvous_cpus(set, setup_func, action_func, teardown_func, arg);
+}
+
 void
 smp_rendezvous(void (* setup_func)(void *), 
 	       void (* action_func)(void *),
diff --git a/sys/sys/smp.h b/sys/sys/smp.h
index b642a6014f33..fdb69b13c0d4 100644
--- a/sys/sys/smp.h
+++ b/sys/sys/smp.h
@@ -16,6 +16,7 @@
 
 #ifndef LOCORE
 
+#include <sys/types.h>
 #include <sys/cpuset.h>
 #include <sys/queue.h>
 
@@ -278,7 +279,12 @@ void	smp_rendezvous(void (*)(void *),
 		       void (*)(void *),
 		       void *arg);
 void	smp_rendezvous_cpus(cpuset_t,
-		       void (*)(void *), 
+		       void (*)(void *),
+		       void (*)(void *),
+		       void (*)(void *),
+		       void *arg);
+void	smp_rendezvous_cpu(u_int,
+		       void (*)(void *),
 		       void (*)(void *),
 		       void (*)(void *),
 		       void *arg);