X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=libringbuffer%2Fsmp.c;fp=libringbuffer%2Fsmp.c;h=966556dcee15cf38b0a4b6e86d1f47ccd878169b;hb=625fc7badf99019e4bbc9f4b8a08b261b5655680;hp=8b66b9e83fd08b88c6b70798000781898af1a562;hpb=fc1841f3a814b7ef87216ca99c3bcdd944c8b5d4;p=lttng-ust.git

diff --git a/libringbuffer/smp.c b/libringbuffer/smp.c
index 8b66b9e8..966556dc 100644
--- a/libringbuffer/smp.c
+++ b/libringbuffer/smp.c
@@ -30,6 +30,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
+#include "align.h"
 #include "smp.h"
 #include "usterr-signal-safe.h"
 
@@ -206,11 +207,10 @@ error:
 void _get_num_possible_cpus(void)
 {
 	int ret;
-	int buf_len = sysconf(_SC_PAGE_SIZE);
-	char buf[buf_len];
+	char buf[LTTNG_UST_CPUMASK_SIZE];
 
 	/* Get the possible cpu mask from sysfs, fallback to sysconf. */
-	ret = get_possible_cpu_mask_from_sysfs((char *) &buf, buf_len);
+	ret = get_possible_cpu_mask_from_sysfs((char *) &buf, LTTNG_UST_CPUMASK_SIZE);
 	if (ret <= 0)
 		goto fallback;