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 22D246FA0 for ; Mon, 16 Jan 2023 16:57:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A0582C433EF; Mon, 16 Jan 2023 16:57:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673888240; bh=bQyGDY0+wNNdaQGADLuLWvDY0O+WAI4ihphzlo6DL+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HC6WbLczHBUktsqM7+e4rRwZ0lt4tzjjinhbz3CWVmgJw5J/hv7lhaYAbPY2yHxlk dthHljUqECTtd6jwStSqyvjefA5syA8O5sxtFcLolztUSmWeK5WOODgHJ3mEcwQURp gXR53nm1O1G8e/akOZrTqm0RxIuI3GaRkEyJzvzg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jan Kara , Sasha Levin Subject: [PATCH 4.19 452/521] udf: Fix extension of the last extent in the file Date: Mon, 16 Jan 2023 16:51:54 +0100 Message-Id: <20230116154907.339355534@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230116154847.246743274@linuxfoundation.org> References: <20230116154847.246743274@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: Jan Kara [ Upstream commit 83c7423d1eb6806d13c521d1002cc1a012111719 ] When extending the last extent in the file within the last block, we wrongly computed the length of the last extent. This is mostly a cosmetical problem since the extent does not contain any data and the length will be fixed up by following operations but still. Fixes: 1f3868f06855 ("udf: Fix extending file within last block") Signed-off-by: Jan Kara Signed-off-by: Sasha Levin --- fs/udf/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 8ff8cd0d2801..55a86120e756 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -595,7 +595,7 @@ static void udf_do_extend_final_block(struct inode *inode, */ if (new_elen <= (last_ext->extLength & UDF_EXTENT_LENGTH_MASK)) return; - added_bytes = (last_ext->extLength & UDF_EXTENT_LENGTH_MASK) - new_elen; + added_bytes = new_elen - (last_ext->extLength & UDF_EXTENT_LENGTH_MASK); last_ext->extLength += added_bytes; UDF_I(inode)->i_lenExtents += added_bytes; -- 2.35.1