From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E83DD1863 for ; Wed, 28 Dec 2022 15:22:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68539C433EF; Wed, 28 Dec 2022 15:22:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672240924; bh=5Rkahfzkdy121YzyB+QK0AzFVGSjIPPDnmj8I2Smvqw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ClG0j/5UBJW5ye7fws2l6GgifDEF04rDEKuu180Z+JlE6FWDyhwTyiQFTHcqFKDeL G7yeQ5e1mydcUKrxmmQTd24tApT66wyjSkKqUrCgGKxX3m7PAy9n80DvOkcjBhchCx M54dKJPpqGoDT84YpPHjFApliZFEwYD46e6nnsog= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Brian Foster , Dai Ngo , Chuck Lever , Sasha Levin Subject: [PATCH 6.1 0185/1146] NFSD: pass range end to vfs_fsync_range() instead of count Date: Wed, 28 Dec 2022 15:28:44 +0100 Message-Id: <20221228144335.176770388@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144330.180012208@linuxfoundation.org> References: <20221228144330.180012208@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Brian Foster [ Upstream commit 79a1d88a36f77374c77fd41a4386d8c2736b8704 ] _nfsd_copy_file_range() calls vfs_fsync_range() with an offset and count (bytes written), but the former wants the start and end bytes of the range to sync. Fix it up. Fixes: eac0b17a77fb ("NFSD add vfs_fsync after async copy is done") Signed-off-by: Brian Foster Tested-by: Dai Ngo Signed-off-by: Chuck Lever Signed-off-by: Sasha Levin --- fs/nfsd/nfs4proc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index e91d0918592c..32fe7cbfb28b 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1646,6 +1646,7 @@ static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy, u64 src_pos = copy->cp_src_pos; u64 dst_pos = copy->cp_dst_pos; int status; + loff_t end; /* See RFC 7862 p.67: */ if (bytes_total == 0) @@ -1665,8 +1666,8 @@ static ssize_t _nfsd_copy_file_range(struct nfsd4_copy *copy, /* for a non-zero asynchronous copy do a commit of data */ if (nfsd4_copy_is_async(copy) && copy->cp_res.wr_bytes_written > 0) { since = READ_ONCE(dst->f_wb_err); - status = vfs_fsync_range(dst, copy->cp_dst_pos, - copy->cp_res.wr_bytes_written, 0); + end = copy->cp_dst_pos + copy->cp_res.wr_bytes_written - 1; + status = vfs_fsync_range(dst, copy->cp_dst_pos, end, 0); if (!status) status = filemap_check_wb_err(dst->f_mapping, since); if (!status) -- 2.35.1