From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6F5CFC28CBC for ; Wed, 6 May 2020 20:53:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BF222070B for ; Wed, 6 May 2020 20:53:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Qc2qN9c8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729146AbgEFUxC (ORCPT ); Wed, 6 May 2020 16:53:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728062AbgEFUxB (ORCPT ); Wed, 6 May 2020 16:53:01 -0400 Received: from mail-qt1-x849.google.com (mail-qt1-x849.google.com [IPv6:2607:f8b0:4864:20::849]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F297C061A0F for ; Wed, 6 May 2020 13:53:01 -0700 (PDT) Received: by mail-qt1-x849.google.com with SMTP id f56so3965573qte.18 for ; Wed, 06 May 2020 13:53:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=CQcbxKSUYsAHBe7Ebehk8JAKNTVPAr/UiGZDOPwaAGc=; b=Qc2qN9c83pfJHD8uho1tepgh5pW6tBfZF37n4CM3MD32Y0xOob1XZT1Xv+y3pZ+qx7 dBB3TftZel2t+tBVFBd8Gmpd8I5YkwQYtydO5Ubo9P4sTrTHbdqfX4CpaxnQmWfWWvgM GB0IZxjFVxH21WEMvJry1tpuESxde2u8nQYSHCdadbK+JU0TiFO0kVdGrVkPTvGBJVbo hK0NlJTJiZMfi1lUhirdBpVEgN4skITYyCBi0AVgxXzHXTLJ47/oWq3xpYZd9ylfxUj9 u5EyHrWqrjBvrtX8v6pNmKv7i9YRjxMyZS2xaYfpjkuEcvzXdsdCBIu7GTDszAEDs3cX ApSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=CQcbxKSUYsAHBe7Ebehk8JAKNTVPAr/UiGZDOPwaAGc=; b=YFFN89qGZ2oiWuPIvaKyC+z5QjFtgdK51/cG4qQj6lxXKQm4W7baauuaOUaXuqS7iF PYVuZmCS8xsuNJXjgg2HdNvaJBQs7s+e04R+rd+AFdjb9J/VR/yaUhCRWA7maRT03k3g U0rAhLZ7irNTuKpB+ca3BxZFo1NHV8XFTPFOy+0FRnVhKvDTM6tOeQYUa8rtcAav7OoW ZYh8becfh2v7vTx0POWo/XdwxQKjgD6IkrMKpN7WtdrN5uqq1cyVypnugj0XlVwDha2k EreX3ql8y532WWCbVu7sWqsvWiryKPARHzeQqvSbnu35n+ssEq5Ljw3BEoUViVf8y6C4 xIPw== X-Gm-Message-State: AGi0PuYoqB8X/4hBC0nU92+f3CWjaCL1rOoN08Z4dadGyieJs5pzuboE GyoDAbijsr2S+VSg7nfVx9nq4vMCh0G6 X-Google-Smtp-Source: APiQypIdNrd+yYhBZP4TBZUTUJU1co/gZ+3o6Cxir236qhPBm0psRF02DA8GRECv92XUv8iiH2WZiB7LkvTh X-Received: by 2002:a0c:fc42:: with SMTP id w2mr9758882qvp.77.1588798380452; Wed, 06 May 2020 13:53:00 -0700 (PDT) Date: Wed, 6 May 2020 13:52:55 -0700 Message-Id: <20200506205257.8964-1-irogers@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.26.2.526.g744177e7f7-goog Subject: [PATCH 0/2] lib/bpf hashmap portability and fix From: Ian Rogers To: Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , John Fastabend , KP Singh , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ian Rogers Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm experimenting with hashmap in perf for perf events within a metric expression. In doing this I encountered some issues with lib/bpf hashmap. Ignoring the perf change, I think these fixes are likely still worthwhile. Thanks! Ian Rogers (2): lib/bpf hashmap: increase portability lib/bpf hashmap: fixes to hashmap__clear tools/lib/bpf/hashmap.c | 6 ++++++ tools/lib/bpf/hashmap.h | 3 +-- 2 files changed, 7 insertions(+), 2 deletions(-) -- 2.26.2.526.g744177e7f7-goog