From owner-cvs-all Thu Aug 2 9:45:29 2001 Delivered-To: cvs-all@freebsd.org Received: from khavrinen.lcs.mit.edu (khavrinen.lcs.mit.edu [18.24.4.193]) by hub.freebsd.org (Postfix) with ESMTP id 1D4CD37B401; Thu, 2 Aug 2001 09:45:23 -0700 (PDT) (envelope-from wollman@khavrinen.lcs.mit.edu) Received: (from wollman@localhost) by khavrinen.lcs.mit.edu (8.11.4/8.11.4) id f72GgwC51463; Thu, 2 Aug 2001 12:42:58 -0400 (EDT) (envelope-from wollman) Date: Thu, 2 Aug 2001 12:42:58 -0400 (EDT) From: Garrett Wollman Message-Id: <200108021642.f72GgwC51463@khavrinen.lcs.mit.edu> To: Ian Dowse Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_exit.c kern_sig.c In-Reply-To: <200108021732.aa36978@salmon.maths.tcd.ie> References: <20010803002014.L630-100000@besplex.bde.org> <200108021732.aa36978@salmon.maths.tcd.ie> Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG < said: > I have put together a patch that adds a new procsig flag PS_CLDSIGIGN > which could be tested instead of PHOLD'ing the parent; this might > save the IO involved in swapping in a parent whose SIGCHLD handler > is SIG_IGN. I'm not sure if that is a worthwhile saving. I don't think it's worth it. The most common case is that the SIGCHLD is not set to SIG_IGN, so you are merely postponing the inevitable by a few cycles. -GAWollman To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message