kern/llsync: disable interrupts on per-CPU data access

Not strictly required, but makes things simpler at virtually no cost.

1 files changed, 2 insertions, 0 deletions

diff --git a/kern/llsync_i.h b/kern/llsync_i.h
index 034e368b..c0ba1a39 100644
--- a/kern/llsync_i.h
+++ b/kern/llsync_i.h
@@ -22,6 +22,8 @@
 
 /*
  * Per-processor data.
+ *
+ * Interrupts must be disabled on access.
  */
 struct llsync_cpu {
     int registered;