| 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; |
| } |