diff options
Diffstat (limited to 'mm/percpu.c')
| -rw-r--r-- | mm/percpu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index 2e785a77ce14..1d2c980fde3f 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -715,12 +715,16 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(void *base_addr, int init_map_size) { struct pcpu_chunk *chunk; + int region_size; + + region_size = PFN_ALIGN(start_offset + map_size); chunk = memblock_virt_alloc(pcpu_chunk_struct_size, 0); INIT_LIST_HEAD(&chunk->list); INIT_LIST_HEAD(&chunk->map_extend_list); chunk->base_addr = base_addr; chunk->start_offset = start_offset; + chunk->end_offset = region_size - chunk->start_offset - map_size; chunk->map = map; chunk->map_alloc = init_map_size; @@ -735,6 +739,11 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(void *base_addr, chunk->map[2] = (chunk->start_offset + chunk->free_size) | 1; chunk->map_used = 2; + if (chunk->end_offset) { + /* hide the end of the bitmap */ + chunk->map[++chunk->map_used] = region_size | 1; + } + return chunk; } |