From owner-cvs-all@FreeBSD.ORG Mon Jun 4 23:50:57 2007 Return-Path: X-Original-To: cvs-all@FreeBSD.org Delivered-To: cvs-all@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 377C316A502; Mon, 4 Jun 2007 23:50:57 +0000 (UTC) (envelope-from jeff@FreeBSD.org) Received: from repoman.freebsd.org (repoman.freebsd.org [69.147.83.41]) by mx1.freebsd.org (Postfix) with ESMTP id 298ED13C45D; Mon, 4 Jun 2007 23:50:57 +0000 (UTC) (envelope-from jeff@FreeBSD.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.13.8/8.13.8) with ESMTP id l54NovhB073815; Mon, 4 Jun 2007 23:50:57 GMT (envelope-from jeff@repoman.freebsd.org) Received: (from jeff@localhost) by repoman.freebsd.org (8.13.8/8.13.8/Submit) id l54NovdY073814; Mon, 4 Jun 2007 23:50:57 GMT (envelope-from jeff) Message-Id: <200706042350.l54NovdY073814@repoman.freebsd.org> From: Jeff Roberson Date: Mon, 4 Jun 2007 23:50:57 +0000 (UTC) To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org X-FreeBSD-CVS-Branch: HEAD Cc: Subject: cvs commit: src/sys/kern kern_condvar.c kern_synch.c subr_sleepqueue.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jun 2007 23:50:57 -0000 jeff 2007-06-04 23:50:57 UTC FreeBSD src repository Modified files: sys/kern kern_condvar.c kern_synch.c subr_sleepqueue.c Log: Commit 2/14 of sched_lock decomposition. - Adapt sleepqueues to the new thread_lock() mechanism. - Delay assigning the sleep queue spinlock as the thread lock until after we've checked for signals. It is illegal for a thread to return in mi_switch() with any lock assigned to td_lock other than the scheduler locks. - Change sleepq_catch_signals() to do the switch if necessary to simplify the callers. - Simplify timeout handling now that locking a sleeping thread has the side-effect of locking the sleepqueue. Some previous races are no longer possible. Tested by: kris, current@ Tested on: i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc. Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each) Revision Changes Path 1.62 +2 -2 src/sys/kern/kern_condvar.c 1.300 +7 -7 src/sys/kern/kern_synch.c 1.37 +97 -106 src/sys/kern/subr_sleepqueue.c