diff options
Diffstat (limited to 'mm/percpu.c')
| -rw-r--r-- | mm/percpu.c | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index 20d91af8c033..da21680ff294 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -2217,37 +2217,6 @@ static void pcpu_balance_workfn(struct work_struct *work) } /** - * pcpu_alloc_size - the size of the dynamic percpu area - * @ptr: pointer to the dynamic percpu area - * - * Returns the size of the @ptr allocation. This is undefined for statically - * defined percpu variables as there is no corresponding chunk->bound_map. - * - * RETURNS: - * The size of the dynamic percpu area. - * - * CONTEXT: - * Can be called from atomic context. - */ -size_t pcpu_alloc_size(void __percpu *ptr) -{ - struct pcpu_chunk *chunk; - unsigned long bit_off, end; - void *addr; - - if (!ptr) - return 0; - - addr = __pcpu_ptr_to_addr(ptr); - /* No pcpu_lock here: ptr has not been freed, so chunk is still alive */ - chunk = pcpu_chunk_addr_search(addr); - bit_off = (addr - chunk->base_addr) / PCPU_MIN_ALLOC_SIZE; - end = find_next_bit(chunk->bound_map, pcpu_chunk_map_bits(chunk), - bit_off + 1); - return (end - bit_off) * PCPU_MIN_ALLOC_SIZE; -} - -/** * free_percpu - free percpu area * @ptr: pointer to area to free * |