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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 ED604C5519F for ; Wed, 18 Nov 2020 14:46:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6FC9E221FB for ; Wed, 18 Nov 2020 14:46:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="USgVAi0Z" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727073AbgKROqW (ORCPT ); Wed, 18 Nov 2020 09:46:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726590AbgKROqW (ORCPT ); Wed, 18 Nov 2020 09:46:22 -0500 Received: from mail-qt1-x841.google.com (mail-qt1-x841.google.com [IPv6:2607:f8b0:4864:20::841]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA47EC0613D4; Wed, 18 Nov 2020 06:46:21 -0800 (PST) Received: by mail-qt1-x841.google.com with SMTP id v11so1701422qtq.12; Wed, 18 Nov 2020 06:46:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=a2t5AC/LyOIXB7jblxMOM9mVXhxNY++q5sdZhjIQ5zY=; b=USgVAi0ZRpO6fOLA6HrFTwARmz36wNcGjU4hPG2t+axZrJVnafnchSoVBL1tJhpUab vBbFAxBPksWskEkugErnRsztEu+k0rpqg8TW8TIyT19AILEvweyiWLQg6A1MT0Pa9Lrp l/zDdb1IpFR9f4fl53koChAdwuFmHc+DGiDTMI8YNmSImv4Cwzy3QNYmlGcGoGxyCKfX DoXdcbptNbQabtOdGwLPkKTieUUSQNYeIf3VBnmR5yFL6ooAA9sIV8aWBL7cd7sZypJs 72dTTA7KNUZzy/ybSUCAH6LUoieyDl/kk1PRQhAJ4eP7QR5LsiwCv72HdDmwtHd+pWgo ZhsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=a2t5AC/LyOIXB7jblxMOM9mVXhxNY++q5sdZhjIQ5zY=; b=j8vqqz2YwJxBYq0F1nvhsmaFGiAb3eIkZi/xgOEegpYef5m+NakiC+z4Flo04HFu9a cZoEjxQyyObF1Bp2Psk+pjRaFdLrM2jVDGR7vhOax3hJYO+/ll3NaGk261V6dEogxUgw BD0vt2ktD3PYdAY3pjnLD15T0be27YAvoS8VxXOTz0d36Az732piaxWNDM9PBHw2/Wra +02nmQ0Dg81gD5WgItr3a9Wg/2jiMZIbbcEAomymcb/ZiDf76L+FbNgVDZq1RUjWXXU5 jb2bwsUzE6Mg3HT/CNyt/gm22UCYvbM9RIqv3y3L+ZAXlzics40j/L+HfE/XhMHfzHe+ qa7A== X-Gm-Message-State: AOAM531b2CdeyVe7a5+ERI1RDmgRtKZFu1ze9ZoB6UtuUw640LPftn7u Bgu5/gtvzOMR2E5j5+2OE4nSpomDRTs= X-Google-Smtp-Source: ABdhPJwNbQVAci1BVWQebrVWHqjqxNEWcq5AbThbzUTLsr/Rqcd7BVfYffrz2Jvxa6SHuKzo7LCqsQ== X-Received: by 2002:ac8:3805:: with SMTP id q5mr5105535qtb.53.1605710780597; Wed, 18 Nov 2020 06:46:20 -0800 (PST) Received: from willemb.nyc.corp.google.com ([2620:0:1003:312:f693:9fff:fef4:3e8a]) by smtp.gmail.com with ESMTPSA id k188sm4910810qkd.98.2020.11.18.06.46.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Nov 2020 06:46:19 -0800 (PST) From: Willem de Bruijn To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, soheil.kdev@gmail.com, arnd@arndb.de, shuochen@google.com, linux-man@vger.kernel.org, Willem de Bruijn Subject: [PATCH v3 0/2] add epoll_pwait2 syscall Date: Wed, 18 Nov 2020 09:46:14 -0500 Message-Id: <20201118144617.986860-1-willemdebruijn.kernel@gmail.com> X-Mailer: git-send-email 2.29.2.454.gaff20da3a2-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Willem de Bruijn Enable nanosecond timeouts for epoll. Analogous to pselect and ppoll, introduce an epoll_wait syscall variant that takes a struct timespec instead of int timeout. See patch 1 for more details. patch 1: new syscall patch 2: selftest Willem de Bruijn (2): epoll: add nsec timeout support with epoll_pwait2 selftests/filesystems: expand epoll with epoll_pwait2 arch/alpha/kernel/syscalls/syscall.tbl | 1 + arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 + arch/ia64/kernel/syscalls/syscall.tbl | 1 + arch/m68k/kernel/syscalls/syscall.tbl | 1 + arch/microblaze/kernel/syscalls/syscall.tbl | 1 + arch/mips/kernel/syscalls/syscall_n32.tbl | 1 + arch/mips/kernel/syscalls/syscall_n64.tbl | 1 + arch/mips/kernel/syscalls/syscall_o32.tbl | 1 + arch/parisc/kernel/syscalls/syscall.tbl | 1 + arch/powerpc/kernel/syscalls/syscall.tbl | 1 + arch/s390/kernel/syscalls/syscall.tbl | 1 + arch/sh/kernel/syscalls/syscall.tbl | 1 + arch/sparc/kernel/syscalls/syscall.tbl | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/xtensa/kernel/syscalls/syscall.tbl | 1 + fs/eventpoll.c | 106 +++++++++++++++--- include/linux/compat.h | 6 + include/linux/syscalls.h | 5 + include/uapi/asm-generic/unistd.h | 4 +- kernel/sys_ni.c | 2 + .../filesystems/epoll/epoll_wakeup_test.c | 70 ++++++++++++ 24 files changed, 193 insertions(+), 20 deletions(-) -- 2.29.2.454.gaff20da3a2-goog