From patchwork Wed Sep 27 16:03:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 9974363 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 132EC60365 for ; Wed, 27 Sep 2017 16:04:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0678E26E47 for ; Wed, 27 Sep 2017 16:04:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EF76529108; Wed, 27 Sep 2017 16:04:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 81B3C26E47 for ; Wed, 27 Sep 2017 16:04:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752675AbdI0QE2 (ORCPT ); Wed, 27 Sep 2017 12:04:28 -0400 Received: from mx2.suse.de ([195.135.220.15]:59062 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753305AbdI0QD5 (ORCPT ); Wed, 27 Sep 2017 12:03:57 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 09585ACFA; Wed, 27 Sep 2017 16:03:55 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 764D71E35D2; Wed, 27 Sep 2017 18:03:54 +0200 (CEST) From: Jan Kara To: Andrew Morton Cc: , , Jan Kara , Jaegeuk Kim , linux-f2fs-devel@lists.sourceforge.net Subject: [PATCH 07/15] f2fs: Use find_get_pages_tag() for looking up single page Date: Wed, 27 Sep 2017 18:03:26 +0200 Message-Id: <20170927160334.29513-8-jack@suse.cz> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20170927160334.29513-1-jack@suse.cz> References: <20170927160334.29513-1-jack@suse.cz> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP __get_first_dirty_index() wants to lookup only the first dirty page after given index. There's no point in using pagevec_lookup_tag() for that. Just use find_get_pages_tag() directly. CC: Jaegeuk Kim CC: linux-f2fs-devel@lists.sourceforge.net Reviewed-by: Chao Yu Signed-off-by: Jan Kara --- fs/f2fs/file.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 517e112c8a9a..f78b76ec4707 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -313,18 +313,19 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) static pgoff_t __get_first_dirty_index(struct address_space *mapping, pgoff_t pgofs, int whence) { - struct pagevec pvec; + struct page *page; int nr_pages; if (whence != SEEK_DATA) return 0; /* find first dirty page index */ - pagevec_init(&pvec, 0); - nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs, - PAGECACHE_TAG_DIRTY, 1); - pgofs = nr_pages ? pvec.pages[0]->index : ULONG_MAX; - pagevec_release(&pvec); + nr_pages = find_get_pages_tag(mapping, &pgofs, PAGECACHE_TAG_DIRTY, + 1, &page); + if (!nr_pages) + return ULONG_MAX; + pgofs = page->index; + put_page(page); return pgofs; }