From owner-p4-projects@FreeBSD.ORG  Sat Apr 16 13:02:55 2005
Return-Path: <owner-p4-projects@FreeBSD.ORG>
Delivered-To: p4-projects@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 32767)
	id 3742616A4D0; Sat, 16 Apr 2005 13:02:55 +0000 (GMT)
Delivered-To: perforce@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 12A6116A4CE
	for <perforce@freebsd.org>; Sat, 16 Apr 2005 13:02:55 +0000 (GMT)
Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115])
	by mx1.FreeBSD.org (Postfix) with ESMTP id EFD4F43D2D
	for <perforce@freebsd.org>; Sat, 16 Apr 2005 13:02:54 +0000 (GMT)
	(envelope-from davidxu@freebsd.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id j3GD2sTv068780
	for <perforce@freebsd.org>; Sat, 16 Apr 2005 13:02:54 GMT
	(envelope-from davidxu@freebsd.org)
Received: (from perforce@localhost)
	by repoman.freebsd.org (8.13.1/8.13.1/Submit) id j3GD2svq068777
	for perforce@freebsd.org; Sat, 16 Apr 2005 13:02:54 GMT
	(envelope-from davidxu@freebsd.org)
Date: Sat, 16 Apr 2005 13:02:54 GMT
Message-Id: <200504161302.j3GD2svq068777@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: perforce set sender to
	davidxu@freebsd.org using -f
From: David Xu <davidxu@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
Subject: PERFORCE change 75319 for review
X-BeenThere: p4-projects@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: p4 projects tree changes <p4-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/p4-projects>
List-Post: <mailto:p4-projects@freebsd.org>
List-Help: <mailto:p4-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 16 Apr 2005 13:02:55 -0000

http://perforce.freebsd.org/chv.cgi?CH=75319

Change 75319 by davidxu@davidxu_tiger on 2005/04/16 13:02:52

	Only need to update %gs.

Affected files ...

.. //depot/projects/davidxu_thread/src/sys/i386/i386/vm_machdep.c#8 edit

Differences ...

==== //depot/projects/davidxu_thread/src/sys/i386/i386/vm_machdep.c#8 (text+ko) ====

@@ -471,7 +471,7 @@
 
 void
 cpu_set_user_tls(struct thread *td, void *tls_base, size_t tls_size,
-	int tls_seg)
+	int tls_seg __unused)
 {
 	struct segment_descriptor sd;
 	uint32_t base;
@@ -494,19 +494,11 @@
 	sd.sd_def32 = 1;
 	sd.sd_gran  = 1;
 	mtx_lock_spin(&sched_lock);
-	if (tls_seg == 0) {
-		/* set %gs */
-		td->td_pcb->pcb_gsd = sd;
-		if (td == curthread) {
-			PCPU_GET(fsgs_gdt)[1] = sd;
-			load_gs(GSEL(GUGS_SEL, SEL_UPL));
-		}
-	} else {
-		/* set %fs */
-		td->td_pcb->pcb_fsd = sd;
-		if (td == curthread)
-			PCPU_GET(fsgs_gdt)[0] = sd;
-		td->td_frame->tf_fs = GSEL(GUFS_SEL, SEL_UPL);
+	/* current only uses %gs */
+	td->td_pcb->pcb_gsd = sd;
+	if (td == curthread) {
+		PCPU_GET(fsgs_gdt)[1] = sd;
+		load_gs(GSEL(GUGS_SEL, SEL_UPL));
 	}
 	mtx_unlock_spin(&sched_lock);
 }