On Mon, Mar 06, 2017 at 11:30:24AM +0100, Michal Hocko wrote:
> +void *kvmalloc_node(size_t size, gfp_t flags, int node)
> +{
> + gfp_t kmalloc_flags = flags;
> + void *ret;
> +
> + /*
> + * vmalloc uses GFP_KERNEL for some internal allocations (e.g page tables)
> + * so the given set of flags has to be compatible.
> + */
> + WARN_ON_ONCE((flags & GFP_KERNEL) != GFP_KERNEL);
Hm, there are quite a few locations in the kernel that do something like:
__vmalloc(len, GFP_NOFS, PAGE_KERNEL);
According to your patch, vmalloc can't really do GFP_NOFS, right?
--
Thanks,
Sasha
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