Re: [PATCH net 3/3] bpf: do not test for PCPU_MIN_UNIT_SIZE before percpu allocations

On Tue, Oct 17, 2017 at 04:55:54PM +0200, Daniel Borkmann wrote:

PCPU_MIN_UNIT_SIZE is an implementation detail of the percpu
allocator. Given we support __GFP_NOWARN now, lets just let
the allocation request fail naturally instead. The two call
sites from BPF mistakenly assumed __GFP_NOWARN would work, so
no changes needed to their actual __alloc_percpu_gfp() calls
which use the flag already.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Acked-by: Alexei Starovoitov <ast@kernel.org>