[PATCH 03/10] Cpuset: update_nodemask code reformat

[Paul Jackson <pj@sgi.com>]

Restructure code layout of the kernel/cpuset.c update_nodemask()
routine, removing embedded returns and nested if's in favor of
goto completion labels.  This is being done in anticipation of
adding more logic to this routine, which will favor the goto
style structure.

Signed-off-by: Paul Jackson <pj@sgi.com>

---

 kernel/cpuset.c |   25 +++++++++++++++----------
 1 files changed, 15 insertions(+), 10 deletions(-)

--- 2.6.15-rc3-mm1.orig/kernel/cpuset.c	2005-12-07 19:15:37.420771718 -0800
+++ 2.6.15-rc3-mm1/kernel/cpuset.c	2005-12-07 19:16:31.104966322 -0800
@@ -799,18 +799,23 @@ static int update_nodemask(struct cpuset
 	trialcs = *cs;
 	retval = nodelist_parse(buf, trialcs.mems_allowed);
 	if (retval < 0)
-		return retval;
+		goto done;
 	nodes_and(trialcs.mems_allowed, trialcs.mems_allowed, node_online_map);
-	if (nodes_empty(trialcs.mems_allowed))
-		return -ENOSPC;
-	retval = validate_change(cs, &trialcs);
-	if (retval == 0) {
-		down(&callback_sem);
-		cs->mems_allowed = trialcs.mems_allowed;
-		atomic_inc(&cpuset_mems_generation);
-		cs->mems_generation = atomic_read(&cpuset_mems_generation);
-		up(&callback_sem);
+	if (nodes_empty(trialcs.mems_allowed)) {
+		retval = -ENOSPC;
+		goto done;
 	}
+	retval = validate_change(cs, &trialcs);
+	if (retval < 0)
+		goto done;
+
+	down(&callback_sem);
+	cs->mems_allowed = trialcs.mems_allowed;
+	atomic_inc(&cpuset_mems_generation);
+	cs->mems_generation = atomic_read(&cpuset_mems_generation);
+	up(&callback_sem);
+
+done:
 	return retval;
 }
 

-- 
                          I won't rest till it's the best ...
                          Programmer, Linux Scalability
                          Paul Jackson <pj@sgi.com> 1.650.933.1373