On Wed, Aug 08, 2012 at 05:19:43PM +0200, Samuel Thibault wrote:
> --- a/lib/cpuset.c
> +++ b/lib/cpuset.c
> @@ -54,6 +54,7 @@ static const char *nexttoken(const char *q, int sep)
> return q;
> }
>
> +#ifdef __linux__
> /*
> * Number of bits in a CPU bitmask on current system
> */
> @@ -85,6 +86,7 @@ int get_max_number_of_cpus(void)
> }
> return -1;
> }
> +#endif
Hmm... this not too elegant for the internal API. I have modified the
patch:
--- a/lib/cpuset.c
+++ b/lib/cpuset.c
@@ -59,6 +59,7 @@ static const char *nexttoken(const char *q, int sep)
*/
int get_max_number_of_cpus(void)
{
+#ifdef SYS_sched_getaffinity
int n, cpus = 2048;
size_t setsize;
cpu_set_t *set = cpuset_alloc(cpus, &setsize, NULL);
@@ -83,6 +84,7 @@ int get_max_number_of_cpus(void)
cpuset_free(set);
return n * 8;
}
+#endif
return -1;
}
... so the function always exist. I guess the syscall is Linux
specific.
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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