From patchwork Sat May 20 16:36:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 13249285 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 06B8FC77B7F for ; Sat, 20 May 2023 16:36:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230194AbjETQgN (ORCPT ); Sat, 20 May 2023 12:36:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48534 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230244AbjETQgI (ORCPT ); Sat, 20 May 2023 12:36:08 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EBA2125; Sat, 20 May 2023 09:36:07 -0700 (PDT) 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=+5Gd20gnOfg2ptmyOVBLmZe5e2qIUOzp8yL1uT+bZ48=; b=LotIxHPyvImolSeRaIHOVRP9yQ AaWxiVmv7NfYHr3dO9Kre1oun7kXcG+cNt6koxqNq3+bMhv9ydK+/jZ4ELjTKWlqNFNHy+M33tN2A 6j3eS4Je5FpEwZ5QnXiwqHcHxV4Z7FwKurHb6jJYKL22Zf51/QHAh2vu5cr3yfCyk5V9M6HS1P9qw 1VCICjruIFJP8chNE9yYbnscuoAjS5O3YH7ZNUXAARoeWbqcveuP8ubEUvZdrW9NzCFvP7c04f2GK aq9xkZ17HXTXch/ulITTid5ihYlOITkDJTAvQJOmL9hCX23JBFw+qLv3ciR41ofn95LG3bIUUGjcL DHm93deQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1q0PYr-007WmR-Iz; Sat, 20 May 2023 16:36:05 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-xfs@vger.kernel.org, Wang Yugui , Dave Chinner , Christoph Hellwig , "Darrick J . Wong" Subject: [PATCH 2/3] iomap: Create large folios in the buffered write path Date: Sat, 20 May 2023 17:36:02 +0100 Message-Id: <20230520163603.1794256-3-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230520163603.1794256-1-willy@infradead.org> References: <20230520163603.1794256-1-willy@infradead.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Use the size of the write as a hint for the size of the folio to create. Signed-off-by: Matthew Wilcox (Oracle) --- fs/gfs2/bmap.c | 2 +- fs/iomap/buffered-io.c | 10 ++++++---- include/linux/iomap.h | 2 +- 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index c739b258a2d9..3702e5e47b0f 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -971,7 +971,7 @@ gfs2_iomap_get_folio(struct iomap_iter *iter, loff_t pos, unsigned len) if (status) return ERR_PTR(status); - folio = iomap_get_folio(iter, pos); + folio = iomap_get_folio(iter, pos, len); if (IS_ERR(folio)) gfs2_trans_end(sdp); return folio; diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 063133ec77f4..651af2d424ac 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -461,16 +461,18 @@ EXPORT_SYMBOL_GPL(iomap_is_partially_uptodate); * iomap_get_folio - get a folio reference for writing * @iter: iteration structure * @pos: start offset of write + * @len: length of write * * Returns a locked reference to the folio at @pos, or an error pointer if the * folio could not be obtained. */ -struct folio *iomap_get_folio(struct iomap_iter *iter, loff_t pos) +struct folio *iomap_get_folio(struct iomap_iter *iter, loff_t pos, size_t len) { unsigned fgp = FGP_WRITEBEGIN | FGP_NOFS; if (iter->flags & IOMAP_NOWAIT) fgp |= FGP_NOWAIT; + fgp |= fgp_order(len); return __filemap_get_folio(iter->inode->i_mapping, pos >> PAGE_SHIFT, fgp, mapping_gfp_mask(iter->inode->i_mapping)); @@ -510,8 +512,8 @@ void iomap_invalidate_folio(struct folio *folio, size_t offset, size_t len) iomap_page_release(folio); } else if (folio_test_large(folio)) { /* Must release the iop so the page can be split */ - WARN_ON_ONCE(!folio_test_uptodate(folio) && - folio_test_dirty(folio)); + VM_WARN_ON_ONCE_FOLIO(!folio_test_uptodate(folio) && + folio_test_dirty(folio), folio); iomap_page_release(folio); } } @@ -603,7 +605,7 @@ static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos, if (folio_ops && folio_ops->get_folio) return folio_ops->get_folio(iter, pos, len); else - return iomap_get_folio(iter, pos); + return iomap_get_folio(iter, pos, len); } static void __iomap_put_folio(struct iomap_iter *iter, loff_t pos, size_t ret, diff --git a/include/linux/iomap.h b/include/linux/iomap.h index e2b836c2e119..80facb9c9e5b 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -261,7 +261,7 @@ int iomap_file_buffered_write_punch_delalloc(struct inode *inode, int iomap_read_folio(struct folio *folio, const struct iomap_ops *ops); void iomap_readahead(struct readahead_control *, const struct iomap_ops *ops); bool iomap_is_partially_uptodate(struct folio *, size_t from, size_t count); -struct folio *iomap_get_folio(struct iomap_iter *iter, loff_t pos); +struct folio *iomap_get_folio(struct iomap_iter *iter, loff_t pos, size_t len); bool iomap_release_folio(struct folio *folio, gfp_t gfp_flags); void iomap_invalidate_folio(struct folio *folio, size_t offset, size_t len); int iomap_file_unshare(struct inode *inode, loff_t pos, loff_t len,