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 4E119C433F5 for ; Wed, 15 Dec 2021 11:19:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242065AbhLOLTH (ORCPT ); Wed, 15 Dec 2021 06:19:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231875AbhLOLTA (ORCPT ); Wed, 15 Dec 2021 06:19:00 -0500 Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21458C06173F; Wed, 15 Dec 2021 03:19:00 -0800 (PST) Received: by mail-lj1-x22e.google.com with SMTP id u22so32744972lju.7; Wed, 15 Dec 2021 03:19:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7mv8LCg5hfv3NsHhjpVbivA950W+vq5Ul9i+K+7LTn0=; b=BrPPIpSGRWtkZNSg87q8xBysJpiUgbg7Ac6Tr1kTnf1x1yGZuDZ1JNy79YtLu/4nL2 N4DX8KW+gi+8BsDPwAB5S9eggLfw1ppjE+ZFj2FiGPUxhnw+A7YFF9DCgs9Oh0EGAZ0V 2Gmsz2jF2aAHYFXNaegLwDSp17D26UYDb/NF13aM3D3oeOUXVDs6+X52TT6N5AAlqj63 TK0x4cyAxW3QfVnvrhOdhcpKVlEIBArWkEb4aFV7pAPEYcYn+cfkAoKuGQvvJQ8r0wKT rU9elBmekfTdQNHNG75Y7t3Ug5OtuKWVLpIGFQOdNzGRyN3IIDbzdSygiZMLc0G27cY1 imyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=7mv8LCg5hfv3NsHhjpVbivA950W+vq5Ul9i+K+7LTn0=; b=DiVicyRUNW7rYhg7ImL7+mcqWB2KqmacS8jO481TTPpb4lkigRdM3/usXMQkuALgc3 Vbu6KhfdMTWXSSzj3LnLu58BzvR9RihcdT3BMYMqMGb5OiOjpBE66vHMG6WS4t4XSR5g Hu2ryOsm7Ql2XVDqj4zNmewl+qzxukyUGQSsUqkibtJCT6RZ/R6rMZ9y07jZ6/d8P8fF iP5O9Iw+rEjCuSTLN+6GxjR4U7BeZ9YlqR8j2fRn+5SYjZlqunKW1VAcposSzB3VvekD nXXqr83f/r2C4htBnbOqOdzi/ZMX+X3AyrlmG0kxTLPJiIODfUFZjZLaS8kDUXbsW3VL eXFg== X-Gm-Message-State: AOAM533/dcV5oWmbDoMDOz8LCZTeu6zrocMboivkmpCJi8WoV0fbcGd5 6TltgWVyStnIdy8gbjv84Zx88oOOh9EFqY5A X-Google-Smtp-Source: ABdhPJzvXafSpGSGwSSTdm4oUN+syVOr4D4PnsuF+o4JmHKmW5e+MDe6WWNew7txvtqQZ/vSZOZVyw== X-Received: by 2002:a2e:bf1e:: with SMTP id c30mr9804668ljr.408.1639567138426; Wed, 15 Dec 2021 03:18:58 -0800 (PST) Received: from pc638.lan (h5ef52e3d.seluork.dyn.perspektivbredband.net. [94.245.46.61]) by smtp.gmail.com with ESMTPSA id n17sm383906ljg.128.2021.12.15.03.18.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Dec 2021 03:18:58 -0800 (PST) From: "Uladzislau Rezki (Sony)" To: LKML , RCU , "Paul E . McKenney" Cc: Michal Hocko , Andrew Morton , Daniel Axtens , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Peter Zijlstra , Thomas Gleixner , "Theodore Y . Ts'o" , Sebastian Andrzej Siewior , Uladzislau Rezki , Oleksiy Avramchenko Subject: [PATCH] mfd: dln2: Switch to kvfree_rcu() API Date: Wed, 15 Dec 2021 12:18:41 +0100 Message-Id: <20211215111845.2514-5-urezki@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211215111845.2514-1-urezki@gmail.com> References: <20211215111845.2514-1-urezki@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of invoking a synchronize_rcu() to free a pointer after a grace period we can directly make use of new API that does the same but in more efficient way. TO: Lee Jones TO: Mike Marciniszyn Signed-off-by: Uladzislau Rezki (Sony) --- drivers/mfd/dln2.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index 852129ea0766..365e3e77cac4 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -179,10 +179,8 @@ void dln2_unregister_event_cb(struct platform_device *pdev, u16 id) spin_unlock_irqrestore(&dln2->event_cb_lock, flags); - if (found) { - synchronize_rcu(); - kfree(i); - } + if (found) + kvfree_rcu(i); } EXPORT_SYMBOL(dln2_unregister_event_cb); -- 2.30.2