arm64: Do not report user faults for handled signals

Currently user faults (page, undefined instruction) are always reported
even though the user may have a signal handler for them. This patch adds
unhandled_signal() check together with printk_ratelimit() for these
cases.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 98af6e760cce..1426468b77f3 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -113,7 +113,8 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr,
 {
         struct siginfo si;
 
-        if (show_unhandled_signals) {
+        if (show_unhandled_signals && unhandled_signal(tsk, sig) &&
+            printk_ratelimit()) {
                 pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n",
                         tsk->comm, task_pid_nr(tsk), fault_name(esr), sig,
                         addr, esr);