powerpc/watchpoint: Introduce is_ptrace_bp() function (c9e82aeb) · Commits · 戴 / test

Introduce is_ptrace_bp() function and move the check inside the function. It will be utilize more in later set of patches. Signed-off-by:

arch/powerpc/kernel/hw_breakpoint.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -91,6 +91,11 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp)
		hw_breakpoint_disable();
		}

		static bool is_ptrace_bp(struct perf_event *bp)
		{
		return bp->overflow_handler == ptrace_triggered;
		}

		/*
		* Perform cleanup of arch-specific counters during unregistration
		* of the perf-event
		@@ -325,7 +330,7 @@ int hw_breakpoint_handler(struct die_args *args)
		* one-shot mode. The ptrace-ed process will receive the SIGTRAP signal
		* generated in do_dabr().
		*/
		if (bp->overflow_handler == ptrace_triggered) {
		if (is_ptrace_bp(bp)) {
		perf_bp_event(bp, regs);
		rc = NOTIFY_DONE;
		goto out;