From patchwork Sat Apr 18 22:51:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guoqing Jiang X-Patchwork-Id: 11497041 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3ACA61668 for ; Sat, 18 Apr 2020 22:51:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 22EEF21D7E for ; Sat, 18 Apr 2020 22:51:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cloud.ionos.com header.i=@cloud.ionos.com header.b="bAelyIOi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728342AbgDRWvb (ORCPT ); Sat, 18 Apr 2020 18:51:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51418 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726887AbgDRWvb (ORCPT ); Sat, 18 Apr 2020 18:51:31 -0400 Received: from mail-ed1-x542.google.com (mail-ed1-x542.google.com [IPv6:2a00:1450:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E1717C061A0C for ; Sat, 18 Apr 2020 15:51:29 -0700 (PDT) Received: by mail-ed1-x542.google.com with SMTP id p6so4361455edu.10 for ; Sat, 18 Apr 2020 15:51:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloud.ionos.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=cFu/s1WUWRTKfL++ymdKBNKB4z5V4nO3awV8fbzpHOU=; b=bAelyIOiycqdA3PHytQ5JNmxRIMokDZCfaqXWmLiSP5v93FMbAIm0wa9608080qvqd rLaIcXx9UIkgQ6WRkH/owbm7Id1Ae9CbwqmQQhUkI5YfW1hTWWJpSjdGwxTY6pxhUaGa X/m2YLLAd2wX0n7Z2FrFmGsPJ6qeqGH88wz9YfYHN721hH/FtHzZ2fXXkJ6+RgCZ1W/Q SunK8CV/RC7dWu8zH+78Edn8jvkeZdj2iEUztsu32TAoG1PJNFQN4GcwhmMlWtsRb9bV jFcmOTKm/+/BSwcyjPpr9A8cmqpNwt0dHrVCkVkEJPSfpR/vpPY0KdxLzaOPZe5GuJGw nUag== 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:in-reply-to :references; bh=cFu/s1WUWRTKfL++ymdKBNKB4z5V4nO3awV8fbzpHOU=; b=SZJnM0+rcjwS4ZNRX7QNW8JxY7Nd5XUqOyDwJLz9G2FSUjdsIP0pUE8zr7XXUuwPA6 EVvfy5D7QkXHjjEQcqqRhUzEXDdwjqW3cfHWxBHP/NnIUoBQ+ZGnuH5yhLfMqMIETWF7 kZHw8uh2Lb30dY9qOnd/7nS3HjG//kX+HrRYybTms94h6qeUeHDuVo3+qEzNEVatET91 ZmcCxme5XKDsUD7m2V7Yisp1tbWHtX0ZnxgtVI9kwGHWH7GkHra58FDGdr48WphA1XOf LxncHxTzzygQV2Guc5puOmYpClB1SHNw/pmxKiufIOpLPywIeMSPhZquV2OpMm948vur aELg== X-Gm-Message-State: AGi0PuaJRkh6sc9qjs2k8iDI11s/RX2xb/U92nb9iuQHIkTbLnL2kCsh w4g5DZr9EcM3joPY1uOR3PLGCJaUUDTLkQ== X-Google-Smtp-Source: APiQypLsLZrtVlzve3FEY5SXreoZYBhW88KG0qYYT5BpqW2oJ2LQ+9RIy+hUEyxe+l77uJ1OW7+F7A== X-Received: by 2002:aa7:d3cb:: with SMTP id o11mr8422616edr.194.1587250288517; Sat, 18 Apr 2020 15:51:28 -0700 (PDT) Received: from ls00508.pb.local ([2001:1438:4010:2540:6c58:b8bc:cdc6:2e2d]) by smtp.gmail.com with ESMTPSA id g21sm2616767ejm.79.2020.04.18.15.51.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Apr 2020 15:51:27 -0700 (PDT) From: Guoqing Jiang To: linux-fsdevel@vger.kernel.org Cc: Guoqing Jiang , Alexander Viro Subject: [PATCH 1/5] fs/buffer: export __clear_page_buffers Date: Sun, 19 Apr 2020 00:51:19 +0200 Message-Id: <20200418225123.31850-2-guoqing.jiang@cloud.ionos.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200418225123.31850-1-guoqing.jiang@cloud.ionos.com> References: <20200418225123.31850-1-guoqing.jiang@cloud.ionos.com> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Export the function so others (such as md, btrfs and iomap) can reuse it. Cc: Alexander Viro Signed-off-by: Guoqing Jiang --- fs/buffer.c | 4 ++-- include/linux/buffer_head.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index f73276d746bb..05b7489d9aa3 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -123,13 +123,13 @@ void __wait_on_buffer(struct buffer_head * bh) } EXPORT_SYMBOL(__wait_on_buffer); -static void -__clear_page_buffers(struct page *page) +void __clear_page_buffers(struct page *page) { ClearPagePrivate(page); set_page_private(page, 0); put_page(page); } +EXPORT_SYMBOL(__clear_page_buffers); static void buffer_io_error(struct buffer_head *bh, char *msg) { diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index e0b020eaf32e..735b094d89e1 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -181,6 +181,7 @@ static inline void clean_bdev_bh_alias(struct buffer_head *bh) void mark_buffer_async_write(struct buffer_head *bh); void __wait_on_buffer(struct buffer_head *); +void __clear_page_buffers(struct page *page); wait_queue_head_t *bh_waitq_head(struct buffer_head *bh); struct buffer_head *__find_get_block(struct block_device *bdev, sector_t block, unsigned size);