From patchwork Wed May 24 06:38:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13253364 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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AB720C7EE32 for ; Wed, 24 May 2023 06:39:33 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-2.v29.lw.sourceforge.com) by sfs-ml-2.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1q1i9l-0001bc-9i; Wed, 24 May 2023 06:39:33 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-2.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1q1i9R-0001ae-RF for linux-f2fs-devel@lists.sourceforge.net; Wed, 24 May 2023 06:39:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; 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:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=eC4fKlJuAZk6Bs9zfH3GxbdW7XFrPuxkzUVDWdmQe5g=; b=VwljWOkWl/jW9cPKRHB80FA+5+ ixzU5FodX11Ajo9VEuw0RzFoJAMWGDS72qB1j5/HItXBSZN03GXDtUBsTFiVN+kGMUKSozkWaNO78 5MSwuctSGyeTd7PJTOF9UtJNY7hWWnb5yiXQ66BvW/9iqVW8swdnlN8SNp96206BWZ48=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; 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:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=eC4fKlJuAZk6Bs9zfH3GxbdW7XFrPuxkzUVDWdmQe5g=; b=ijtfw95CovSN2SofFuxmpO4jij rr3H7/g+IBUJ1yfGE+wjUQ5UKE3KWcvlgQ60bygdSnf52wxboBPYaJn1quw9fbZ10MZZ/Rg9u84wf ai5iH9uaYXsVah7WvdbX2A+lBgDfYi6qm/FITrp8ypeLwrlpRAbGhV5hrye6f6WeunSg=; Received: from bombadil.infradead.org ([198.137.202.133]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1q1i8v-0005gl-5F for linux-f2fs-devel@lists.sourceforge.net; Wed, 24 May 2023 06:38:45 +0000 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=eC4fKlJuAZk6Bs9zfH3GxbdW7XFrPuxkzUVDWdmQe5g=; b=U875Nf6B+VixmZn3RCK57UbTUU IFC0MeeaeIlbgfB/LVshuRLIofQrNBg07H6ArsN/S4kztKs2Gdx3sBck98mxzZ6RTXhCQBVXC7/u7 i9xBhUMRbD7a1jKdA/JPzbaHfjiavwo4CIWKOoe1Yj8Z05UGrZF2AThxvYxwSQAyFfc87tXPIZ4vh V39JXltuaCnrdgxByGkJWT2mJPgbOnQgbZY/NGQM3agFFFH5l75VSVn8S/KTo2KbrkM03l+cEvvBf e/uITYC+j0JHWGaMUQ5DoVgNuR0TXMLu4m5OFU/iCDA+DzlVkPoKbiFDcpNMAlA0wT7qfVqH4Z4nE WHCJyCJw==; Received: from [2001:4bb8:188:23b2:cbb8:fcea:a637:5089] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1q1i8c-00CVf8-2h; Wed, 24 May 2023 06:38:23 +0000 From: Christoph Hellwig To: Matthew Wilcox Date: Wed, 24 May 2023 08:38:02 +0200 Message-Id: <20230524063810.1595778-4-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230524063810.1595778-1-hch@lst.de> References: <20230524063810.1595778-1-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 X-Headers-End: 1q1i8v-0005gl-5F Subject: [f2fs-dev] [PATCH 03/11] filemap: update ki_pos in generic_perform_write X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Darrick J. Wong" , linux-mm@kvack.org, Andreas Gruenbacher , Miklos Szeredi , cluster-devel@redhat.com, Ilya Dryomov , linux-ext4@vger.kernel.org, linux-nfs@vger.kernel.org, linux-block@vger.kernel.org, Damien Le Moal , Alexander Viro , Jaegeuk Kim , ceph-devel@vger.kernel.org, Xiubo Li , Trond Myklebust , Jens Axboe , Christian Brauner , Theodore Ts'o , linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, Anna Schumaker , linux-fsdevel@vger.kernel.org, Andrew Morton Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net All callers of generic_perform_write need to updated ki_pos, move it into common code. Signed-off-by: Christoph Hellwig Reviewed-by: Xiubo Li Reviewed-by: Damien Le Moal Acked-by: Darrick J. Wong Reviewed-by: Hannes Reinecke --- fs/ceph/file.c | 2 -- fs/ext4/file.c | 9 +++------ fs/f2fs/file.c | 1 - fs/nfs/file.c | 1 - mm/filemap.c | 8 ++++---- 5 files changed, 7 insertions(+), 14 deletions(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index c8ef72f723badd..767f4dfe7def64 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1891,8 +1891,6 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from) * can not run at the same time */ written = generic_perform_write(iocb, from); - if (likely(written >= 0)) - iocb->ki_pos = pos + written; ceph_end_io_write(inode); } diff --git a/fs/ext4/file.c b/fs/ext4/file.c index bc430270c23c19..ea0ada3985cba2 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -289,12 +289,9 @@ static ssize_t ext4_buffered_write_iter(struct kiocb *iocb, out: inode_unlock(inode); - if (likely(ret > 0)) { - iocb->ki_pos += ret; - ret = generic_write_sync(iocb, ret); - } - - return ret; + if (unlikely(ret <= 0)) + return ret; + return generic_write_sync(iocb, ret); } static ssize_t ext4_handle_inode_extension(struct inode *inode, loff_t offset, diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 4f423d367a44b9..7134fe8bd008cb 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -4520,7 +4520,6 @@ static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb, ret = generic_perform_write(iocb, from); if (ret > 0) { - iocb->ki_pos += ret; f2fs_update_iostat(F2FS_I_SB(inode), inode, APP_BUFFERED_IO, ret); } diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 665ce3fc62eaf4..e8bb4c48a3210a 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -655,7 +655,6 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) goto out; written = result; - iocb->ki_pos += written; nfs_add_stats(inode, NFSIOS_NORMALWRITTENBYTES, written); if (mntflags & NFS_MOUNT_WRITE_EAGER) { diff --git a/mm/filemap.c b/mm/filemap.c index 33b54660ad2b39..15907af4a57ff5 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -3957,7 +3957,10 @@ ssize_t generic_perform_write(struct kiocb *iocb, struct iov_iter *i) balance_dirty_pages_ratelimited(mapping); } while (iov_iter_count(i)); - return written ? written : status; + if (!written) + return status; + iocb->ki_pos += written; + return written; } EXPORT_SYMBOL(generic_perform_write); @@ -4034,7 +4037,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from) endbyte = pos + status - 1; err = filemap_write_and_wait_range(mapping, pos, endbyte); if (err == 0) { - iocb->ki_pos = endbyte + 1; written += status; invalidate_mapping_pages(mapping, pos >> PAGE_SHIFT, @@ -4047,8 +4049,6 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from) } } else { written = generic_perform_write(iocb, from); - if (likely(written > 0)) - iocb->ki_pos += written; } out: return written ? written : err;