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Diffstat (limited to 'sys/kern/kern_lockstat.c')
-rw-r--r--sys/kern/kern_lockstat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_lockstat.c b/sys/kern/kern_lockstat.c
index 10da98bbb0d6..679a01c01f5c 100644
--- a/sys/kern/kern_lockstat.c
+++ b/sys/kern/kern_lockstat.c
@@ -62,7 +62,7 @@ SDT_PROBE_DEFINE1(lockstat, , , sx__downgrade, "struct sx *");
SDT_PROBE_DEFINE2(lockstat, , , thread__spin, "struct mtx *", "uint64_t");
-int __read_mostly lockstat_enabled;
+volatile int __read_mostly lockstat_enabled;
uint64_t
lockstat_nsecs(struct lock_object *lo)