1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 659ae8094ed5..c8f7d98d8cb9 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -360,6 +360,8 @@ __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev,
         /*
          * Complete any pending TLB or cache maintenance on this CPU in case
          * the thread migrates to a different CPU.
+         * This full barrier is also required by the membarrier system
+         * call.
          */
         dsb(ish);