sh: Kill off duplicate page fault notifiers in slow path.

We already have hooks in place in the __do_page_fault() fast-path,
so kill them off in the slow path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 4 insertions, 7 deletions

diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
index ef01f45daa8a..08a08ea5d69f 100644
--- a/arch/sh/mm/fault_32.c
+++ b/arch/sh/mm/fault_32.c
@@ -53,13 +53,10 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
         int fault;
         siginfo_t info;
 
-        if (notify_page_fault(regs, lookup_exception_vector()))
-                return;
-
-#ifdef CONFIG_SH_KGDB
-        if (kgdb_nofault && kgdb_bus_err_hook)
-                kgdb_bus_err_hook();
-#endif
+        /*
+         * We don't bother with any notifier callbacks here, as they are
+         * all handled through the __do_page_fault() fast-path.
+         */
 
         tsk = current;
         si_code = SEGV_MAPERR;