From 59dac16fb95f09253b8086134443abeb439703cd Mon Sep 17 00:00:00 2001
From: Paul Jackson <pj@sgi.com>
Date: Sun, 8 Jan 2006 01:01:52 -0800
Subject: [PATCH] [PATCH] cpuset: update_nodemask code reformat

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>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/cpuset.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index f513dd937eee..3ea63da11d71 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -799,18 +799,23 @@ static int update_nodemask(struct cpuset *cs, char *buf)
 	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;
 }
 
-- 
GitLab