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authorPaul Jackson <pj@sgi.com>2006-01-08 01:01:52 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:13:43 -0800
commit59dac16fb95f09253b8086134443abeb439703cd (patch)
tree25491bdcff6f980edfed259d7edadeb273a27ee3
parentc5b2aff89635495064592dc90da595f8a880ee87 (diff)
downloadop-kernel-dev-59dac16fb95f09253b8086134443abeb439703cd.zip
op-kernel-dev-59dac16fb95f09253b8086134443abeb439703cd.tar.gz
[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>
-rw-r--r--kernel/cpuset.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index f513dd9..3ea63da 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;
}
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