From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261705AbTJMMaI (ORCPT ); Mon, 13 Oct 2003 08:30:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261732AbTJMMaI (ORCPT ); Mon, 13 Oct 2003 08:30:08 -0400 Received: from pentafluge.infradead.org ([213.86.99.235]:17562 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S261705AbTJMMaC (ORCPT ); Mon, 13 Oct 2003 08:30:02 -0400 Subject: Re: [RFC][PATCH] Kernel thread signal handling. From: David Woodhouse To: Andrew Morton Cc: torvalds@osdl.org, linux-kernel@vger.kernel.org In-Reply-To: <20031013051149.29da705a.akpm@osdl.org> References: <1066041096.24015.431.camel@hades.cambridge.redhat.com> <20031013040219.6ad71a57.akpm@osdl.org> <1066044079.24015.442.camel@hades.cambridge.redhat.com> <20031013044042.23ab7f69.akpm@osdl.org> <1066046102.14783.11.camel@hades.cambridge.redhat.com> <20031013051149.29da705a.akpm@osdl.org> Content-Type: text/plain Message-Id: <1066048200.14783.25.camel@hades.cambridge.redhat.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 (1.4.5-2.dwmw2.3) Date: Mon, 13 Oct 2003 13:30:00 +0100 Content-Transfer-Encoding: 7bit X-SA-Exim-Mail-From: dwmw2@infradead.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Pentafluge-Mail-From: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2003-10-13 at 05:11 -0700, Andrew Morton wrote: > > daemonize("jffs2_gcd_mtd%d", c->mtd->index); > > And then what? Parse the output of ps(1)? Use pidof(8)? Those work. > Insufficient contrition detected :) Hehe. > Why cannot a procfs or sysfs control be used? Mostly because I think that idea sucks, and partly because I think your ire is misdirected -- it shouldn't be directed at kernel code which handles signals, but rather at kernel code which sleeps in state TASK_INTERRUPTIBLE but _doesn't_ handle signals. On the other hand, if you ever find people actually trying to pass _data_ to kernel threads with sys_rt_sigqueueinfo(), I'll be right behind you with my own baseball bat waiting to bash the pieces you leave behind :) -- dwmw2