On Tue 02-04-13 21:43:44, Robin Holt wrote:
[...]
> diff --git a/mm/bootmem.c b/mm/bootmem.c
> index 2b0bcb0..b2e4027 100644
> --- a/mm/bootmem.c
> +++ b/mm/bootmem.c
> @@ -705,12 +705,16 @@ void * __init __alloc_bootmem(unsigned long size, unsigned long align,
>
> void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
> unsigned long size, unsigned long align,
> - unsigned long goal, unsigned long limit)
> + unsigned long goal, unsigned long limit,
> + int zeroed)
> {
> void *ptr;
>
> if (WARN_ON_ONCE(slab_is_available()))
> - return kzalloc(size, GFP_NOWAIT);
> + if (zeroed)
> + return kzalloc(size, GFP_NOWAIT);
> + else
> + return kmalloc(size, GFP_NOWAIT);
> again:
>
> /* do not panic in alloc_bootmem_bdata() */
You need to update alloc_bootmem_bdata and alloc_bootmem_core as well.
Otherwise this is a no-op for early allocations when slab is not
available which is the case unless something is broken.
[...]
--
Michal Hocko
SUSE Labs
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