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Fri, 21 Aug 2020 11:23:24 -0700 (PDT) Date: Fri, 21 Aug 2020 11:23:21 -0700 From: Alexei Starovoitov To: Roman Gushchin Cc: bpf@vger.kernel.org, netdev@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , kernel-team@fb.com, linux-kernel@vger.kernel.org, Johannes Weiner , Shakeel Butt , linux-mm@kvack.org Subject: Re: [PATCH bpf-next v4 28/30] bpf: eliminate rlimit-based memory accounting infra for bpf maps Message-ID: <20200821182321.dtkf5wpi4pukbq3w@ast-mbp.dhcp.thefacebook.com> References: <20200821150134.2581465-1-guro@fb.com> <20200821150134.2581465-29-guro@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200821150134.2581465-29-guro@fb.com> X-Rspamd-Queue-Id: 5BEF2180ACEF7 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 X-Bogosity: Ham, tests=bogofilter, spamicity=0.001081, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Aug 21, 2020 at 08:01:32AM -0700, Roman Gushchin wrote: > > diff --git a/tools/testing/selftests/bpf/progs/map_ptr_kern.c b/tools/testing/selftests/bpf/progs/map_ptr_kern.c > index 473665cac67e..49d1dcaf7999 100644 > --- a/tools/testing/selftests/bpf/progs/map_ptr_kern.c > +++ b/tools/testing/selftests/bpf/progs/map_ptr_kern.c > @@ -26,17 +26,12 @@ __u32 g_line = 0; > return 0; \ > }) > > -struct bpf_map_memory { > - __u32 pages; > -} __attribute__((preserve_access_index)); > - > struct bpf_map { > enum bpf_map_type map_type; > __u32 key_size; > __u32 value_size; > __u32 max_entries; > __u32 id; > - struct bpf_map_memory memory; > } __attribute__((preserve_access_index)); hmm. Did you build selftests? progs/map_ptr_kern.c:45:14: error: no member named 'memory' in 'struct bpf_map' VERIFY(map->memory.pages > 0); ~~~ ^ progs/map_ptr_kern.c:25:8: note: expanded from macro 'VERIFY'