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sched: fix the wrong mask_len
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If NR_CPUS isn't a multiple of 32, we get a truncated string of sched
domains by catting /proc/schedstat. This is caused by the wrong mask_len.

This patch fixes it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Miao Xie authored and Ingo Molnar committed Oct 17, 2008
1 parent 0f1f6de commit c851c86
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion kernel/sched_stats.h
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@
static int show_schedstat(struct seq_file *seq, void *v)
{
int cpu;
int mask_len = NR_CPUS/32 * 9;
int mask_len = (NR_CPUS/32 + 1) * 9;
char *mask_str = kmalloc(mask_len, GFP_KERNEL);

if (mask_str == NULL)
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