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authorRusty Russell <rusty@rustcorp.com.au>2015-03-05 03:19:19 +0300
committerRusty Russell <rusty@rustcorp.com.au>2015-03-10 06:24:42 +0300
commitcdfdef75e795fb5ab76c66f3329e509f3ab8b9b5 (patch)
tree3e6ba270aadabfa764ceed44c2347f059cdcfe56 /include/linux/cpumask.h
parentc8ed00107b60b4a890798677d75e5c2910f393bb (diff)
downloadlinux-cdfdef75e795fb5ab76c66f3329e509f3ab8b9b5.tar.xz
cpumask: only allocate nr_cpumask_bits.
Now we'll find out the hard way if anyone has CPUMASK_OFFSTACK and is returning these or assigning them. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/cpumask.h')
-rw-r--r--include/linux/cpumask.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 646fadee5caf..4ad2d3c8e21f 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -11,6 +11,7 @@
#include <linux/bitmap.h>
#include <linux/bug.h>
+/* Don't assign or return these: may not be this big! */
typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t;
/**
@@ -609,9 +610,7 @@ static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
*/
static inline size_t cpumask_size(void)
{
- /* FIXME: Once all cpumask assignments are eliminated, this
- * can be nr_cpumask_bits */
- return BITS_TO_LONGS(NR_CPUS) * sizeof(long);
+ return BITS_TO_LONGS(nr_cpumask_bits) * sizeof(long);
}
/*