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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 572F0C433EF for ; Wed, 2 Mar 2022 15:48:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240668AbiCBPtN (ORCPT ); Wed, 2 Mar 2022 10:49:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240399AbiCBPtG (ORCPT ); Wed, 2 Mar 2022 10:49:06 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2089112A80 for ; Wed, 2 Mar 2022 07:48:22 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B151F61735 for ; Wed, 2 Mar 2022 15:48:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E967FC340F3; Wed, 2 Mar 2022 15:48:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646236101; bh=lrSD1SAPG1K49lgvrlMSeV7b6eHs5r6JW1h42/uZTAw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jrr2BWmarghJx1xzUsDRsq9BNUuqYX9FyNguYMWSIgBbLcuX6w/cyzhPP+3EnLKR9 gE5IRilsTq5dlFj8fx17lNb9oP0wmGXk5sE7BRg++WzcdaW3Ik+qR8UthvMxHexwmR Vy4SBnNxcIMaDSNmzeo88oAFvXJ9jSPV5HtfokqDYHY0UnmLyIYeai8daoICj4SCq1 kkwoI3ueyeQtRclKWbK1ak1W4IEVdx0Yp9zLAxNKo90mS+lTshBOXVWg+FbPBKkD6A sGPFauNnybg0dgSxlFF/kRetl/ZGW24kH9eyouHiCaMQUVj2PoPRfkAEOpkVhnVml6 1c5TzORZOEhtg== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Peter Zijlstra , Phil Auld , Alex Belits , Nicolas Saenz Julienne , Xiongfeng Wang , Neeraj Upadhyay , Thomas Gleixner , Yu Liao , Boqun Feng , "Paul E . McKenney" , Marcelo Tosatti , Paul Gortmaker , Uladzislau Rezki , Joel Fernandes Subject: [PATCH 01/19] context_tracking: Rename __context_tracking_enter/exit() to __ct_user_enter/exit() Date: Wed, 2 Mar 2022 16:47:52 +0100 Message-Id: <20220302154810.42308-2-frederic@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220302154810.42308-1-frederic@kernel.org> References: <20220302154810.42308-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The context tracking namespace is going to expand and some new functions will require even longer names. Start shrinking the context_tracking prefix to "ct" as is already the case for some existing macros, this will make the introduction of new functions easier. Signed-off-by: Frederic Weisbecker Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Neeraj Upadhyay Cc: Uladzislau Rezki Cc: Joel Fernandes Cc: Boqun Feng Cc: Nicolas Saenz Julienne Cc: Marcelo Tosatti Cc: Xiongfeng Wang Cc: Yu Liao Cc: Phil Auld Cc: Paul Gortmaker Cc: Alex Belits --- include/linux/context_tracking.h | 12 ++++++------ kernel/context_tracking.c | 20 ++++++++++---------- 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index 7a14807c9d1a..773035124bad 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h @@ -14,8 +14,8 @@ extern void context_tracking_cpu_set(int cpu); /* Called with interrupts disabled. */ -extern void __context_tracking_enter(enum ctx_state state); -extern void __context_tracking_exit(enum ctx_state state); +extern void __ct_user_enter(enum ctx_state state); +extern void __ct_user_exit(enum ctx_state state); extern void context_tracking_enter(enum ctx_state state); extern void context_tracking_exit(enum ctx_state state); @@ -38,13 +38,13 @@ static inline void user_exit(void) static __always_inline void user_enter_irqoff(void) { if (context_tracking_enabled()) - __context_tracking_enter(CONTEXT_USER); + __ct_user_enter(CONTEXT_USER); } static __always_inline void user_exit_irqoff(void) { if (context_tracking_enabled()) - __context_tracking_exit(CONTEXT_USER); + __ct_user_exit(CONTEXT_USER); } static inline enum ctx_state exception_enter(void) @@ -74,7 +74,7 @@ static inline void exception_exit(enum ctx_state prev_ctx) static __always_inline bool context_tracking_guest_enter(void) { if (context_tracking_enabled()) - __context_tracking_enter(CONTEXT_GUEST); + __ct_user_enter(CONTEXT_GUEST); return context_tracking_enabled_this_cpu(); } @@ -82,7 +82,7 @@ static __always_inline bool context_tracking_guest_enter(void) static __always_inline void context_tracking_guest_exit(void) { if (context_tracking_enabled()) - __context_tracking_exit(CONTEXT_GUEST); + __ct_user_exit(CONTEXT_GUEST); } /** diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c index 36a98c48aedc..ad2a973393a6 100644 --- a/kernel/context_tracking.c +++ b/kernel/context_tracking.c @@ -51,15 +51,15 @@ static __always_inline void context_tracking_recursion_exit(void) } /** - * context_tracking_enter - Inform the context tracking that the CPU is going - * enter user or guest space mode. + * __ct_user_enter - Inform the context tracking that the CPU is going + * to enter user or guest space mode. * * This function must be called right before we switch from the kernel * to user or guest space, when it's guaranteed the remaining kernel * instructions to execute won't use any RCU read side critical section * because this function sets RCU in extended quiescent state. */ -void noinstr __context_tracking_enter(enum ctx_state state) +void noinstr __ct_user_enter(enum ctx_state state) { /* Kernel threads aren't supposed to go to userspace */ WARN_ON_ONCE(!current->mm); @@ -101,7 +101,7 @@ void noinstr __context_tracking_enter(enum ctx_state state) } context_tracking_recursion_exit(); } -EXPORT_SYMBOL_GPL(__context_tracking_enter); +EXPORT_SYMBOL_GPL(__ct_user_enter); void context_tracking_enter(enum ctx_state state) { @@ -119,7 +119,7 @@ void context_tracking_enter(enum ctx_state state) return; local_irq_save(flags); - __context_tracking_enter(state); + __ct_user_enter(state); local_irq_restore(flags); } NOKPROBE_SYMBOL(context_tracking_enter); @@ -132,8 +132,8 @@ void context_tracking_user_enter(void) NOKPROBE_SYMBOL(context_tracking_user_enter); /** - * context_tracking_exit - Inform the context tracking that the CPU is - * exiting user or guest mode and entering the kernel. + * __ct_user_exit - Inform the context tracking that the CPU is + * exiting user or guest mode and entering the kernel. * * This function must be called after we entered the kernel from user or * guest space before any use of RCU read side critical section. This @@ -143,7 +143,7 @@ NOKPROBE_SYMBOL(context_tracking_user_enter); * This call supports re-entrancy. This way it can be called from any exception * handler without needing to know if we came from userspace or not. */ -void noinstr __context_tracking_exit(enum ctx_state state) +void noinstr __ct_user_exit(enum ctx_state state) { if (!context_tracking_recursion_enter()) return; @@ -166,7 +166,7 @@ void noinstr __context_tracking_exit(enum ctx_state state) } context_tracking_recursion_exit(); } -EXPORT_SYMBOL_GPL(__context_tracking_exit); +EXPORT_SYMBOL_GPL(__ct_user_exit); void context_tracking_exit(enum ctx_state state) { @@ -176,7 +176,7 @@ void context_tracking_exit(enum ctx_state state) return; local_irq_save(flags); - __context_tracking_exit(state); + __ct_user_exit(state); local_irq_restore(flags); } NOKPROBE_SYMBOL(context_tracking_exit); -- 2.25.1