diff options
Diffstat (limited to 'mm/percpu-km.c')
| -rw-r--r-- | mm/percpu-km.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/percpu-km.c b/mm/percpu-km.c index df680855540..89633fefc6a 100644 --- a/mm/percpu-km.c +++ b/mm/percpu-km.c @@ -27,7 +27,7 @@ * chunk size is not aligned. percpu-km code will whine about it. */ -#ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK +#if defined(CONFIG_SMP) && defined(CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK) #error "contiguous percpu allocation is incompatible with paged first chunk" #endif @@ -35,7 +35,11 @@ static int pcpu_populate_chunk(struct pcpu_chunk *chunk, int off, int size) { - /* noop */ + unsigned int cpu; + + for_each_possible_cpu(cpu) + memset((void *)pcpu_chunk_addr(chunk, cpu, 0) + off, 0, size); + return 0; } |