From owner-freebsd-current Sun Mar 26 22:38:58 2000 Delivered-To: freebsd-current@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (Postfix) with ESMTP id E108837BBAD; Sun, 26 Mar 2000 22:38:54 -0800 (PST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.9.3/8.9.3) with ESMTP id XAA52440; Sun, 26 Mar 2000 23:38:47 -0700 (MST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id XAA90828; Sun, 26 Mar 2000 23:38:33 -0700 (MST) Message-Id: <200003270638.XAA90828@harmony.village.org> To: Mike Smith Subject: Re: Is there spinlocks/semaphores available for drivers? Cc: Matthew Dillon , Daniel Eischen , nms@otdel-1.org, freebsd-current@FreeBSD.ORG In-reply-to: Your message of "Sun, 26 Mar 2000 22:39:38 PST." <200003270639.WAA05313@mass.cdrom.com> References: <200003270639.WAA05313@mass.cdrom.com> Date: Sun, 26 Mar 2000 23:38:33 -0700 From: Warner Losh Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <200003270639.WAA05313@mass.cdrom.com> Mike Smith writes: : What about it in particular? Or are you referring to overflow handling? Yes. Well, I guess I assumed it was a circular thing, and you'd need to have some comparison against read index, which would be racible. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message