From mboxrd@z Thu Jan 1 00:00:00 1970 From: rostedt@goodmis.org (Steven Rostedt) Date: Thu, 19 May 2011 08:22:08 -0400 Subject: [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering In-Reply-To: References: <20110513125452.GD3924@elte.hu> <1305292132.2466.26.camel@twins> <20110513131800.GA7883@elte.hu> <1305294935.2466.64.camel@twins> <20110513145737.GC32688@elte.hu> <1305563026.5456.19.camel@gandalf.stny.rr.com> <20110516165249.GB10929@elte.hu> <1305565422.5456.21.camel@gandalf.stny.rr.com> <20110517124212.GB21441@elte.hu> <1305637528.5456.723.camel@gandalf.stny.rr.com> <20110517131902.GF21441@elte.hu> Message-ID: <1305807728.11267.25.camel@gandalf.stny.rr.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, 2011-05-18 at 21:07 -0700, Will Drewry wrote: > Do event_* that return non-void exist in the tree at all now? I've > looked at the various tracepoint macros as well as some of the other > handlers (trace_function, perf_tp_event, etc) and I'm not seeing any > places where a return value is honored nor could be. At best, the > perf_tp_event can be short-circuited it in the hlist_for_each, but > it'd still need a way to bubble up a failure and result in not calling > the trace/event that the hook precedes. No, none of the current trace hooks have return values. That was what I was talking about how to implement in my previous emails. -- Steve