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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E612C433EF for ; Tue, 26 Oct 2021 21:41:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 55E29610CA for ; Tue, 26 Oct 2021 21:41:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232066AbhJZVoB (ORCPT ); Tue, 26 Oct 2021 17:44:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231207AbhJZVoB (ORCPT ); Tue, 26 Oct 2021 17:44:01 -0400 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB2DAC061570; Tue, 26 Oct 2021 14:41:36 -0700 (PDT) Received: by mail-pl1-x62e.google.com with SMTP id i5so511058pla.5; Tue, 26 Oct 2021 14:41:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=QxlHN3JQfgAN+PUbtWRzUIRlta1H+DUwqpcC39t0BDo=; b=PMOfz7kSK2HvsPZFvdil2CIyuC3QtwD9qW/AmyP3pa/ESGFBKps2+zuf8RQviQoxqp 6NK8T0feBkgebzS0JYO4+f1ueTXhgI1QvjX5sTe1UkQG3+WlIVJdKU1Kd8lNp7Xh2m4r WsYzdHo9ig6A8l5bvQo7anlPicUHDgtllJkl4V9QyOvz3uCqbs9TKbhBh+es62b+De0K VdjWjFIf8vbdKZ4QjaKc795yJj/TCtlF57bsm604ghk+lyn1QU+EP4HhjrSlv0lkCe4G M27rBSkEG9lQZ1MUEVPd6DvuQs+RLROBiVkZbNiRI8qtxJCI7mvVqXtZtgJh4JnmcIIt zqCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=QxlHN3JQfgAN+PUbtWRzUIRlta1H+DUwqpcC39t0BDo=; b=slZGSQB+IYxUL2TAZYIwSWROoSmjM8gBnUz8fOE2RVM/2XRYmGCZ30E0X3aJh1teX8 mayODkooKulxRrKpUZ2z82AB6Micr9YQSn10YRIwytwGJUpkihqgPxXb41WU7RAKUlnL WHXu0QPcZZbRei2s/mg/4yTY8n61fWO8UnJLSXCMNtqWUb9N6z6zIjZ6IVL/DTePhJhq /Xgnd14b3hb/bG48fU4QfmBEmln/iaaoWs1HoxUwIeuRrdyJD5PFGruuvdOd6mus43+J wSMPUBOZ6qwFjE8o1qMJkVtvtl+LCGwcmnEegfPnDIQmBDH4Nwaz5ELLHZEyUzj8lc2v 7i0A== X-Gm-Message-State: AOAM532Z0pF4c7jiY0ZCoFDBLCPzaDc3z6J33ulIvtSWSEHoovQ0sSTj BnshVBvrwVgGoav3MdmGgFM= X-Google-Smtp-Source: ABdhPJzlHQ7N5DgcY8pJlMRhjGvV35B5mp4JgRqoOwSEAhDWu933uT4reHBHljhkM+RCd6yixYlqVw== X-Received: by 2002:a17:903:1111:b0:13f:d1d7:fb5c with SMTP id n17-20020a170903111100b0013fd1d7fb5cmr24945601plh.47.1635284496367; Tue, 26 Oct 2021 14:41:36 -0700 (PDT) Received: from edumazet1.svl.corp.google.com ([2620:15c:2c4:201:207c:7102:7bd7:80eb]) by smtp.gmail.com with ESMTPSA id g22sm6495400pfj.181.2021.10.26.14.41.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Oct 2021 14:41:35 -0700 (PDT) From: Eric Dumazet To: Alexei Starovoitov , Daniel Borkmann Cc: "David S . Miller" , netdev , Eric Dumazet , Eric Dumazet , bpf Subject: [PATCH V2 bpf-next 0/3] bpf: use 32bit safe version of u64_stats Date: Tue, 26 Oct 2021 14:41:30 -0700 Message-Id: <20211026214133.3114279-1-eric.dumazet@gmail.com> X-Mailer: git-send-email 2.33.0.1079.g6e70778dc9-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org From: Eric Dumazet Two first patches fix bugs added in 5.1 and 5.5 Third patch replaces the u64 fields in struct bpf_prog_stats with u64_stats_t ones to avoid possible sampling errors, in case of load/store stearing. Eric Dumazet (3): bpf: avoid races in __bpf_prog_run() for 32bit arches bpf: fixes possible race in update_prog_stats() for 32bit arches bpf: use u64_stats_t in struct bpf_prog_stats include/linux/filter.h | 15 ++++++++------- kernel/bpf/syscall.c | 18 ++++++++++++------ kernel/bpf/trampoline.c | 12 +++++++----- 3 files changed, 27 insertions(+), 18 deletions(-) -- 2.33.0.1079.g6e70778dc9-goog