From patchwork Fri May 19 09:35:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13248084 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 DB33CC77B7A for ; Fri, 19 May 2023 09:38:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231833AbjESJil (ORCPT ); Fri, 19 May 2023 05:38:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43610 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230358AbjESJhz (ORCPT ); Fri, 19 May 2023 05:37:55 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E98910C9; Fri, 19 May 2023 02:37:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=lKV8h274a8dJZYXDnZBnFaYep44iQbnn3gg/wqWXLcU=; b=cWIcWF+NCJsR16lt+GN3SyqYi8 20m98Sg1zXHAv7DP2DoTSsINVBJLT/jPU8582VtWjlVAlPAxQNKVTFaC0YOnpEd5FvRMnBLi4ey94 K4WsXk4K1iXMjE0WTmxaYPPuCk8QMzpH/S5exdIPqIWUyCVLjzR3cBZl2UWcus5acmbfLvwlunIjm 4ycE2BJo+CC540gWRfo2M+hpyeOMIoCToQspTNQ3U/ipx7csq77R4XMThx+m4QCcDyjZBfA7VJFoS hKoo+WYpC8HvPYhP5WamSeG2WcUggfS4/afnmf7Abg1NQrcteg0tvokFZlTlL+/0VmwC02dijjfgF XYj4OTgA==; Received: from [2001:4bb8:188:3dd5:e8d0:68bb:e5be:210a] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1pzwWm-00Fjl7-2x; Fri, 19 May 2023 09:36:01 +0000 From: Christoph Hellwig To: Matthew Wilcox Cc: Jens Axboe , Xiubo Li , Ilya Dryomov , Alexander Viro , Christian Brauner , "Theodore Ts'o" , Jaegeuk Kim , Chao Yu , Miklos Szeredi , Andreas Gruenbacher , "Darrick J. Wong" , Trond Myklebust , Anna Schumaker , Damien Le Moal , Andrew Morton , linux-block@vger.kernel.org, ceph-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net (open list:F2FS FILE SYSTEM), cluster-devel@redhat.com, linux-xfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 13/13] fuse: use direct_write_fallback Date: Fri, 19 May 2023 11:35:21 +0200 Message-Id: <20230519093521.133226-14-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230519093521.133226-1-hch@lst.de> References: <20230519093521.133226-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Use the generic direct_write_fallback helper instead of duplicating the logic. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal --- fs/fuse/file.c | 27 +++------------------------ 1 file changed, 3 insertions(+), 24 deletions(-) diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 5f7b58798f99fc..02ab446ab57f1f 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -1340,11 +1340,9 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; ssize_t written = 0; - ssize_t written_buffered = 0; struct inode *inode = mapping->host; ssize_t err; struct fuse_conn *fc = get_fuse_conn(inode); - loff_t endbyte = 0; if (fc->writeback_cache) { /* Update size (EOF optimization) and mode (SUID clearing) */ @@ -1382,28 +1380,9 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from) if (iocb->ki_flags & IOCB_DIRECT) { written = generic_file_direct_write(iocb, from); - if (written < 0 || !iov_iter_count(from)) - goto out; - - written_buffered = fuse_perform_write(iocb, from); - if (written_buffered < 0) { - err = written_buffered; - goto out; - } - endbyte = iocb->ki_pos + written_buffered - 1; - - err = filemap_write_and_wait_range(file->f_mapping, - iocb->ki_pos, - endbyte); - if (err) - goto out; - - invalidate_mapping_pages(file->f_mapping, - iocb->ki_pos >> PAGE_SHIFT, - endbyte >> PAGE_SHIFT); - - written += written_buffered; - iocb->ki_pos += written_buffered; + if (written >= 0 && iov_iter_count(from)) + written = direct_write_fallback(iocb, from, written, + fuse_perform_write(iocb, from)); } else { written = fuse_perform_write(iocb, from); }