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=-14.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 A712DC63697 for ; Mon, 16 Nov 2020 21:11:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B07520888 for ; Mon, 16 Nov 2020 21:11:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="0GXMkHQH"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="HDMcwtNT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732890AbgKPVLj (ORCPT ); Mon, 16 Nov 2020 16:11:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732595AbgKPVLg (ORCPT ); Mon, 16 Nov 2020 16:11:36 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF18EC0613D2; Mon, 16 Nov 2020 13:11:35 -0800 (PST) Date: Mon, 16 Nov 2020 21:11:33 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1605561094; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4qfiWLUvci0SXTPKDmONd57cxak7yO+7H9B1MludRn0=; b=0GXMkHQH1NSXc2iXiR886CMxQnDAnI7wYpX9/lZHS38qD0bt1BYJmjG3TcNp9vHPvswsWn n41ouOYKMD7lDIZYk5ZwZxoakkhXkrYaC9vG9nXK2FDPDZ4GSOtpDv2+BHCxK/Ll5J3E4J 7qjFf0Jolau3nYIuJQ2GaHVMra06hP9CM0TKXB5xfAJT9LeJPVMYeA2LgS/Q5W8stQkP4/ tM3hKq9o8d1mI8v/gWcpg3loUfjXi6ZrnIOsDuiND6LqQjIKz7u+v+UMI8uO0kRIuCN/RQ StQNQ2u9tIs2a+aqeBD8XBpNcA/ektD/RcVscSun2NyiJw8zwxJ7+kpSRGx1ug== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1605561094; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4qfiWLUvci0SXTPKDmONd57cxak7yO+7H9B1MludRn0=; b=HDMcwtNTocdVE7jgGxwz3JjMTZ30CcqObC8qHvlzR/PzJ/il+Pj64YOeanQZTMZS+MHcER k+i42aFJ/qr8fkBg== From: "tip-bot2 for Gabriel Krisman Bertazi" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: core/entry] entry: Expose helpers to migrate TIF to SYSCALL_WORK flags Cc: Gabriel Krisman Bertazi , Thomas Gleixner , Andy Lutomirski , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20201116174206.2639648-3-krisman@collabora.com> References: <20201116174206.2639648-3-krisman@collabora.com> MIME-Version: 1.0 Message-ID: <160556109363.11244.12347157276941524864.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the core/entry branch of tip: Commit-ID: 3136b93c3fb2b7c19e853e049203ff8f2b9dd2cd Gitweb: https://git.kernel.org/tip/3136b93c3fb2b7c19e853e049203ff8f2b9dd2cd Author: Gabriel Krisman Bertazi AuthorDate: Mon, 16 Nov 2020 12:41:58 -05:00 Committer: Thomas Gleixner CommitterDate: Mon, 16 Nov 2020 21:53:15 +01:00 entry: Expose helpers to migrate TIF to SYSCALL_WORK flags With the goal to split the syscall work related flags into a separate field that is architecture independent, expose transitional helpers that resolve to either the TIF flags or to the corresponding SYSCALL_WORK flags. This will allow architectures to migrate only when they port to the generic syscall entry code. Signed-off-by: Gabriel Krisman Bertazi Signed-off-by: Thomas Gleixner Reviewed-by: Andy Lutomirski Link: https://lore.kernel.org/r/20201116174206.2639648-3-krisman@collabora.com --- include/linux/thread_info.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index e93e249..0e9fb15 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -97,6 +97,38 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag) #define test_thread_flag(flag) \ test_ti_thread_flag(current_thread_info(), flag) +#ifdef CONFIG_GENERIC_ENTRY +#define set_syscall_work(fl) \ + set_bit(SYSCALL_WORK_BIT_##fl, ¤t_thread_info()->syscall_work) +#define test_syscall_work(fl) \ + test_bit(SYSCALL_WORK_BIT_##fl, ¤t_thread_info()->syscall_work) +#define clear_syscall_work(fl) \ + clear_bit(SYSCALL_WORK_BIT_##fl, ¤t_thread_info()->syscall_work) + +#define set_task_syscall_work(t, fl) \ + set_bit(SYSCALL_WORK_BIT_##fl, &task_thread_info(t)->syscall_work) +#define test_task_syscall_work(t, fl) \ + test_bit(SYSCALL_WORK_BIT_##fl, &task_thread_info(t)->syscall_work) +#define clear_task_syscall_work(t, fl) \ + clear_bit(SYSCALL_WORK_BIT_##fl, &task_thread_info(t)->syscall_work) + +#else /* CONFIG_GENERIC_ENTRY */ + +#define set_syscall_work(fl) \ + set_ti_thread_flag(current_thread_info(), SYSCALL_WORK_##fl) +#define test_syscall_work(fl) \ + test_ti_thread_flag(current_thread_info(), SYSCALL_WORK_##fl) +#define clear_syscall_work(fl) \ + clear_ti_thread_flag(current_thread_info(), SYSCALL_WORK_##fl) + +#define set_task_syscall_work(t, fl) \ + set_ti_thread_flag(task_thread_info(t), TIF_##fl) +#define test_task_syscall_work(t, fl) \ + test_ti_thread_flag(task_thread_info(t), TIF_##fl) +#define clear_task_syscall_work(t, fl) \ + clear_ti_thread_flag(task_thread_info(t), TIF_##fl) +#endif /* !CONFIG_GENERIC_ENTRY */ + #define tif_need_resched() test_thread_flag(TIF_NEED_RESCHED) #ifndef CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES