From patchwork Tue Sep 19 04:51:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 13390791 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C965C748C; Tue, 19 Sep 2023 04:51:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=+YBw7XPXspc4BRLBjqz7GsBiioMj9hvjismckYKmXec=; b=ppqszN0mwK3zh8tqbJY6MTDvp5 1CXrtZ4Q5igFYGx08wqB2yE98fW3BmAfa/tahG6/6/qv9PAL2aa1qXz11Q9wixYhw6OxTnNX+fHvx ByRhoZvIe7OJqxH05vG0XbFwaGiIPhGEuPNuSDZF/76Ymv3o5RIHS6WaKbEHyAu3Y68KPLr25svdz 1Yo/gYYlS00JhJNZX8N+9jcTanYB+r+TAN6/bm4YfQneF/p5g45HTNdCMB1Qp0rdr9Pv8dm1xOG76 kOJUy7xcIIenqEGYDUjfx2QfJGRFEmU0j8CaZb9v3TQa4rLAjp5NuBDiDXpipKitTDq81NA45aTIg AKVLYGeQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qiSi3-00FFku-Fy; Tue, 19 Sep 2023 04:51:39 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-fsdevel@vger.kernel.org, gfs2@lists.linux.dev, linux-nilfs@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, ntfs3@lists.linux.dev, ocfs2-devel@lists.linux.dev, reiserfs-devel@vger.kernel.org, linux-ext4@vger.kernel.org, Pankaj Raghav Subject: [PATCH 11/26] nilfs2: Convert nilfs_copy_page() to nilfs_copy_folio() Date: Tue, 19 Sep 2023 05:51:20 +0100 Message-Id: <20230919045135.3635437-12-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230919045135.3635437-1-willy@infradead.org> References: <20230919045135.3635437-1-willy@infradead.org> Precedence: bulk X-Mailing-List: ocfs2-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Both callers already have a folio, so pass it in and use it directly. Removes a lot of hidden calls to compound_head(). Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Ryusuke Konishi --- fs/nilfs2/page.c | 50 +++++++++++++++++++++++++----------------------- 1 file changed, 26 insertions(+), 24 deletions(-) diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c index 1c075bd906c9..696215d899bf 100644 --- a/fs/nilfs2/page.c +++ b/fs/nilfs2/page.c @@ -184,30 +184,32 @@ void nilfs_page_bug(struct page *page) } /** - * nilfs_copy_page -- copy the page with buffers - * @dst: destination page - * @src: source page - * @copy_dirty: flag whether to copy dirty states on the page's buffer heads. + * nilfs_copy_folio -- copy the folio with buffers + * @dst: destination folio + * @src: source folio + * @copy_dirty: flag whether to copy dirty states on the folio's buffer heads. * - * This function is for both data pages and btnode pages. The dirty flag - * should be treated by caller. The page must not be under i/o. - * Both src and dst page must be locked + * This function is for both data folios and btnode folios. The dirty flag + * should be treated by caller. The folio must not be under i/o. + * Both src and dst folio must be locked */ -static void nilfs_copy_page(struct page *dst, struct page *src, int copy_dirty) +static void nilfs_copy_folio(struct folio *dst, struct folio *src, + bool copy_dirty) { struct buffer_head *dbh, *dbufs, *sbh; unsigned long mask = NILFS_BUFFER_INHERENT_BITS; - BUG_ON(PageWriteback(dst)); + BUG_ON(folio_test_writeback(dst)); - sbh = page_buffers(src); - if (!page_has_buffers(dst)) - create_empty_buffers(dst, sbh->b_size, 0); + sbh = folio_buffers(src); + dbh = folio_buffers(dst); + if (!dbh) + dbh = folio_create_empty_buffers(dst, sbh->b_size, 0); if (copy_dirty) mask |= BIT(BH_Dirty); - dbh = dbufs = page_buffers(dst); + dbufs = dbh; do { lock_buffer(sbh); lock_buffer(dbh); @@ -218,16 +220,16 @@ static void nilfs_copy_page(struct page *dst, struct page *src, int copy_dirty) dbh = dbh->b_this_page; } while (dbh != dbufs); - copy_highpage(dst, src); + folio_copy(dst, src); - if (PageUptodate(src) && !PageUptodate(dst)) - SetPageUptodate(dst); - else if (!PageUptodate(src) && PageUptodate(dst)) - ClearPageUptodate(dst); - if (PageMappedToDisk(src) && !PageMappedToDisk(dst)) - SetPageMappedToDisk(dst); - else if (!PageMappedToDisk(src) && PageMappedToDisk(dst)) - ClearPageMappedToDisk(dst); + if (folio_test_uptodate(src) && !folio_test_uptodate(dst)) + folio_mark_uptodate(dst); + else if (!folio_test_uptodate(src) && folio_test_uptodate(dst)) + folio_clear_uptodate(dst); + if (folio_test_mappedtodisk(src) && !folio_test_mappedtodisk(dst)) + folio_set_mappedtodisk(dst); + else if (!folio_test_mappedtodisk(src) && folio_test_mappedtodisk(dst)) + folio_clear_mappedtodisk(dst); do { unlock_buffer(sbh); @@ -269,7 +271,7 @@ int nilfs_copy_dirty_pages(struct address_space *dmap, NILFS_PAGE_BUG(&folio->page, "found empty page in dat page cache"); - nilfs_copy_page(&dfolio->page, &folio->page, 1); + nilfs_copy_folio(dfolio, folio, true); filemap_dirty_folio(folio_mapping(dfolio), dfolio); folio_unlock(dfolio); @@ -314,7 +316,7 @@ void nilfs_copy_back_pages(struct address_space *dmap, if (!IS_ERR(dfolio)) { /* overwrite existing folio in the destination cache */ WARN_ON(folio_test_dirty(dfolio)); - nilfs_copy_page(&dfolio->page, &folio->page, 0); + nilfs_copy_folio(dfolio, folio, false); folio_unlock(dfolio); folio_put(dfolio); /* Do we not need to remove folio from smap here? */