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=-10.8 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=unavailable 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 52AA0C388F9 for ; Sat, 21 Nov 2020 14:44:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0688D22201 for ; Sat, 21 Nov 2020 14:44:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LF3CR/lH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727968AbgKUOoF (ORCPT ); Sat, 21 Nov 2020 09:44:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58736 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727892AbgKUOoF (ORCPT ); Sat, 21 Nov 2020 09:44:05 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29D90C0613CF; Sat, 21 Nov 2020 06:44:05 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id m2so876722qka.3; Sat, 21 Nov 2020 06:44:05 -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=b1YsIwwUIN4rYNJz4bNr3pgQUADYxpKbFfwui8E1kVk=; b=LF3CR/lH4Pkt6bqErxou/dv4op9wa9S8xbgYEw9tFFeZdj8ETu5DjCeWOTaXEmC1/b KWJxJNTqBX/wE/wqQd1hAPLOJoK3pVxovMeqg51ClH/uLp6+IEY8bz6dE8TcpzcKsv// fNEeLKXjNP/XotaxfAui87UMpr6nUHrsa2MgIBjvzfNDjL4YoT01zrg+kx8LpOFC240F vKC9XXImD6VPD4/st+tmk4ePCK4lQQdcyRfzf3qcxoful5M+k9F9tDtS58U3QiRK6j9g ng+f6uogrtjxOLkT5lo4Yynb3j8+WE/rRZTfhxoXkkaVkDpxKZaJxY+S5WT0dnxnueAh MMAQ== 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=b1YsIwwUIN4rYNJz4bNr3pgQUADYxpKbFfwui8E1kVk=; b=ZyCzNLtOvc53Wkc0HuXyYDp8K4CfyviGFHLS0RkZ5UEQRwhc+iaxTKTCFMxTtGg/7w aSLNO/Dhwf2UdhLlSjRqfu19MRCiJDwWUxjVkZWfd9minuX88BHqfPZuAlSye2fxL2qu Qic9C8UcsfDToLLngvcOoekSDadsGnc6k0PkH7qVx6t5i8q3Fy6ZkPBvn8aVyHTLSLsA T2psNewdbLF0TuKC5qaQDBFKUvYOCnZZJ7lIPFYE6DkJIHQ0MKi7fz19NmXfq9622y8p 2OUYaA8471E4QH6H9qNIqn8HerHmwYEPMqgB/leblHZYcVockP8w9IzpiEudJlvmMOXj USPQ== X-Gm-Message-State: AOAM531H/8Y3WpTftdSgPuvHLLzpXKnjCdg91yNLzNGQ4XTaD0lO9rW3 mrCOJog+7/7YBXJad3Xzmm+1jRUXr8E= X-Google-Smtp-Source: ABdhPJxxK+sVIb9gXaO6vIpinvm4SWyrCKjaFjMTLxuNiHPTirtw1msOuhdVY0ctV9ShJT7hyz0qRg== X-Received: by 2002:a37:9a94:: with SMTP id c142mr695606qke.480.1605969843846; Sat, 21 Nov 2020 06:44:03 -0800 (PST) Received: from willemb.nyc.corp.google.com ([2620:0:1003:312:f693:9fff:fef4:3e8a]) by smtp.gmail.com with ESMTPSA id q15sm4055137qki.13.2020.11.21.06.44.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Nov 2020 06:44:03 -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, willy@infradead.org, arnd@arndb.de, shuochen@google.com, linux-man@vger.kernel.org, Willem de Bruijn Subject: [PATCH v4 0/4] add epoll_pwait2 syscall Date: Sat, 21 Nov 2020 09:43:56 -0500 Message-Id: <20201121144401.3727659-1-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-fsdevel@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 2 for more details. patch 1: pre patch cleanup: convert internal epoll to timespec64 patch 2: add syscall patch 3: wire up syscall patch 4: selftest Applies cleanly to next-20201120 No update to man-pages since v3, see commit https://lore.kernel.org/patchwork/patch/1341103/ Willem de Bruijn (4): epoll: convert internal api to timespec64 epoll: add syscall epoll_pwait2 epoll: wire up syscall 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 | 130 ++++++++++++++---- 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 | 72 ++++++++++ 24 files changed, 210 insertions(+), 29 deletions(-) -- 2.29.2.454.gaff20da3a2-goog