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From: David Xu <davidxu@FreeBSD.org>
Date: Mon, 22 Nov 2010 08:19:19 +0000 (UTC)
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Subject: svn commit: r215660 - user/davidxu/libthr/sys/kern
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Author: davidxu
Date: Mon Nov 22 08:19:18 2010
New Revision: 215660
URL: http://svn.freebsd.org/changeset/base/215660

Log:
  Merge from r215652:
      Use atomic instruction to set _has_writer, otherwise there is a race
      causes userland to not wake up a thread sleeping in kernel.

Modified:
  user/davidxu/libthr/sys/kern/kern_umtx.c

Modified: user/davidxu/libthr/sys/kern/kern_umtx.c
==============================================================================
--- user/davidxu/libthr/sys/kern/kern_umtx.c	Mon Nov 22 07:17:27 2010	(r215659)
+++ user/davidxu/libthr/sys/kern/kern_umtx.c	Mon Nov 22 08:19:18 2010	(r215660)
@@ -3565,9 +3565,8 @@ do_sem_wait(struct thread *td, struct _u
 	umtxq_insert(uq);
 	umtxq_unlock(&uq->uq_key);
 
-	/* Don't modify cacheline when unnecessary. */
 	if (fuword32(__DEVOLATILE(uint32_t *, &sem->_has_waiters)) == 0)
-		suword32(__DEVOLATILE(uint32_t *, &sem->_has_waiters), 1);
+		casuword32(__DEVOLATILE(uint32_t *, &sem->_has_waiters), 0, 1);
 
 	count = fuword32(__DEVOLATILE(uint32_t *, &sem->_count));
 	if (count != 0) {

From owner-svn-src-user@FreeBSD.ORG  Wed Nov 24 06:22:09 2010
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From: Doug Barton <dougb@FreeBSD.org>
Date: Wed, 24 Nov 2010 06:22:09 +0000 (UTC)
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Subject: svn commit: r215793 - user/dougb/portmaster
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Author: dougb
Date: Wed Nov 24 06:22:09 2010
New Revision: 215793
URL: http://svn.freebsd.org/changeset/base/215793

Log:
  Handle the multiport() case when a port that is a dependency
  of an earlier port is up to date, and listed by PKGNAME.

Modified:
  user/dougb/portmaster/portmaster

Modified: user/dougb/portmaster/portmaster
==============================================================================
--- user/dougb/portmaster/portmaster	Wed Nov 24 05:50:19 2010	(r215792)
+++ user/dougb/portmaster/portmaster	Wed Nov 24 06:22:09 2010	(r215793)
@@ -2611,17 +2611,21 @@ multiport () {
 	num=0
 	for port in $worklist; do
 		case "$port" in
-		*/*)	case "$PM_NEEDS_UPDATE" in
-			*\ $port\ *)	;;		# Ok to proceed
-			*)		continue ;;	# Already updated as a dependency
-			esac ;;
+		*/*)	origin=$port ;;
 		*)	# If an installed version does not exist at this
 			# point it probably got updated as a dependency
 			if [ ! -d "$pdb/$port" ]; then
 				numports=$(( $numports - 1 ))
 				continue
-			fi ;;
+			fi
+			origin=`origin_from_pdb $port` ;;
 		esac
+
+		case "$PM_NEEDS_UPDATE" in
+		*\ $origin\ *)	;;		# Ok to proceed
+		*)		continue ;;	# Already updated as a dependency
+		esac
+
 		num=$(( $num + 1 ))
 		init_term_printf "$port ${num}/${numports}"
 		($0 $ARGS $port) || fail "Update for $port failed"