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[PATCH] cpu_exclusive sched domains build fix 

As reported by Paul Mackerras <paulus@samba.org>, the previous patch
"cpu_exclusive sched domains fix" broke the ppc64 build with
CONFIC_CPUSET, yielding error messages:

kernel/cpuset.c: In function 'update_cpu_domains':
kernel/cpuset.c:648: error: invalid lvalue in unary '&'
kernel/cpuset.c:648: error: invalid lvalue in unary '&'

On some arch's, the node_to_cpumask() is a function, returning
a cpumask_t.  But the for_each_cpu_mask() requires an lvalue mask.

The following patch fixes this build failure by making a copy
of the cpumask_t on the stack.

Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paul Jackson 2005-08-24 04:15:10 -07:00 committed by Linus Torvalds
parent 40bb0c3ef5
commit 3725822f7c
1 changed files with 3 additions and 1 deletions
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4
kernel/cpuset.c
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@ -645,7 +645,9 @@ static void update_cpu_domains(struct cpuset *cur)
int i, j;
for_each_cpu_mask(i, cur->cpus_allowed) {
for_each_cpu_mask(j, node_to_cpumask(cpu_to_node(i))) {
cpumask_t mask = node_to_cpumask(cpu_to_node(i));
for_each_cpu_mask(j, mask) {
if (!cpu_isset(j, cur->cpus_allowed))
return;
}