From patchwork Wed Feb 3 17:34:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddhesh Poyarekar X-Patchwork-Id: 41924 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 1728E3874C20; Wed, 3 Feb 2021 17:34:22 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1728E3874C20 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1612373662; bh=l/53hyjHxtHHffsEl+Mq9xk24eTfy+gZbGbw3Akn5oU=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=PKE9fpw8XBuctcUOsX8ph3Snjs0Jt3vPI250CZ2n8wUaT61pUSyfVOMR4HDMaMQDy gzdrS8cYA4EsY/2AwdRdFVpYreAYIl4MEZiIwc3hnWRS1qLcpxvRDqMTUJfkVjjofu n/Y5/ICoH6oSPW8EdzPw0DZr2ADtOanTzn7EI0Qg= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from insect.birch.relay.mailchannels.net (insect.birch.relay.mailchannels.net [23.83.209.93]) by sourceware.org (Postfix) with ESMTPS id A180E385481F for ; Wed, 3 Feb 2021 17:34:18 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org A180E385481F X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 32B6E36286E; Wed, 3 Feb 2021 17:34:17 +0000 (UTC) Received: from pdx1-sub0-mail-a56.g.dreamhost.com (100-96-11-12.trex.outbound.svc.cluster.local [100.96.11.12]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id A765B363995; Wed, 3 Feb 2021 17:34:16 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from pdx1-sub0-mail-a56.g.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384) by 100.96.11.12 (trex/6.0.2); Wed, 03 Feb 2021 17:34:17 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|siddhesh@gotplt.org X-MailChannels-Auth-Id: dreamhost X-Print-Desert: 3868d39028812931_1612373656950_1895561656 X-MC-Loop-Signature: 1612373656950:252181646 X-MC-Ingress-Time: 1612373656949 Received: from pdx1-sub0-mail-a56.g.dreamhost.com (localhost [127.0.0.1]) by pdx1-sub0-mail-a56.g.dreamhost.com (Postfix) with ESMTP id 4CE287F0C9; Wed, 3 Feb 2021 09:34:16 -0800 (PST) Received: from rhbox.intra.reserved-bit.com (unknown [1.186.101.110]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: siddhesh@gotplt.org) by pdx1-sub0-mail-a56.g.dreamhost.com (Postfix) with ESMTPSA id 1CDE27E372; Wed, 3 Feb 2021 09:34:13 -0800 (PST) X-DH-BACKEND: pdx1-sub0-mail-a56 To: libc-alpha@sourceware.org Subject: [PATCH 0/3] TUNABLE_SET fixes Date: Wed, 3 Feb 2021 23:04:03 +0530 Message-Id: <20210203173406.2075480-1-siddhesh@sourceware.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-Spam-Status: No, score=-3487.3 required=5.0 tests=BAYES_00, JMQ_SPF_NEUTRAL, KAM_DMARC_NONE, KAM_DMARC_STATUS, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NEUTRAL, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Siddhesh Poyarekar via Libc-alpha From: Siddhesh Poyarekar Reply-To: Siddhesh Poyarekar Cc: fweimer@redhat.com Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" This series fixes the setting of tunable values and ranges from within glibc through the TUNABLE_SET* macros. The current way will result in overreads when reading 4 byte values since do_tunable_update_val always reads an 8 byte value. This also results in simplification of the TUNABLE_SET* macros since they no longer need a type to be passed. Siddhesh Poyarekar (3): Fix casts when setting tunable range tunables: Remove C type arg from TUNABLE_SET* macros x86: Use SIZE_MAX instead of (long int)-1 for tunable range value elf/dl-tunables.c | 10 +++---- elf/dl-tunables.h | 29 +++++++++---------- manual/README.tunables | 16 +++++----- .../unix/sysv/linux/aarch64/cpu-features.c | 2 +- sysdeps/x86/dl-cacheinfo.h | 19 +++++------- 5 files changed, 34 insertions(+), 42 deletions(-)