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From e4909f329245db52415102e96fc7c99ca1445d05 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@gmail.com>
Date: Thu, 15 Jul 2021 08:48:10 -0400
Subject: [PATCH] Allow for use of either pthread affinity set methods
musl has support for pthread_setaffinity_np, but not
pthread_attr_setaffinity_np. so check for hte existence of either
function in configure, and use the appropriate one.
Upstream-Status: Backport
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
---
rngd_jitter.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/rngd_jitter.c b/rngd_jitter.c
index ea29436..5c7e09e 100644
--- a/rngd_jitter.c
+++ b/rngd_jitter.c
@@ -67,12 +67,25 @@ static int rngd_notime_start(void *ctx,
for(i=i-1;i>=0;i--) {
CPU_SET(i,cpus);
}
- pthread_attr_setaffinity_np(&thread_ctx->notime_pthread_attr, cpusize, cpus);
+ /*
+ * Note that only one of:
+ * HAVE_PTHREAD_ATTR_SETAFFINITY
+ * and
+ * HAVE_PTHREAD_SETAFFINITY
+ * Will ever be set, as per the configure.ac logic
+ */
+#ifdef HAVE_PTHREAD_ATTR_SETAFFINITY
+ pthread_attr_setaffinity_np(&thread_ctx->notime_pthread_attr, cpusize, cpus);
+#endif
ret = -pthread_create(&thread_ctx->notime_thread_id,
&thread_ctx->notime_pthread_attr,
start_routine, arg);
+#ifdef HAVE_PTHREAD_SETAFFINITY
+ pthread_setaffinity_np(&thread_ctx->notime_thread_id, cpusize, cpus);
+#endif
+
CPU_FREE(cpus);
return ret;
}
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