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 277A513B58A; Tue, 23 Apr 2024 11:40:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713872439; cv=none; b=AaqJk75Z4EYuix8EUR9Ns8Mi66BTrHrPQI5TtFZuSP7o6rBjZFFATBtw3k3iofIObvKLdCIZyhS7+fzXA4+ipiZaC1PUnKwV8HOP0haOqa2MxUW/KOHXLn2uQnLaq3chQBSxvG9CKC7Z9KWFjMiC6Jxo9p+BUcVvSkL0VDDUjJs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713872439; c=relaxed/simple; bh=bAtX3o9gj4AZ2aPWXyT0Ta1s632fUx0qRDXoyWz5f3k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bsYGzCaurinG7ZvVlYwFMG9Lyr4MFJYEQTCRd2OoUKfU/64x8GrUYu6LqlJRTjw2J1XsLClkuQVSHejJfaaz7InkHeiAGfITIwPBAhKpuuqEheOjK/PmzlUCR5lWCDUroPMK6apIuRESUscw99ZQjRAzXTJP+tMuuL1CQk+3YF8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dYV7ycCo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dYV7ycCo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28750C32783; Tue, 23 Apr 2024 11:40:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713872439; bh=bAtX3o9gj4AZ2aPWXyT0Ta1s632fUx0qRDXoyWz5f3k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dYV7ycCoZZqeLbRwJ1aQrjQ/QBZeatj1ovUs+1PkPETVBwxsaQ5sxEr+9bhtxdWnD gsoRbIEYApcpQ8COVHgUf2qarM9hYSSl8QubCUjEdHt+VBg9imB/315eHYsiyeX81+ lDhkWoU5Owprs3tojZkaAs3+x16JKV9rG6sAvhULOHPhDAtr5YqJ5PZ7tUsb4vHb5/ IaWKX+FO5j78fVaLL6ZZgkTBebc57lT/olV3IZqXRM2cjExXUMmCPuT10qtN0f8Mpz iXosI8znYbUUvGRRRSjU0iU7HRkVUyLLkGXQQI3Ph7w1a4WdXJofF9BA1ZeP7DAGCT cWpFsAjG1Gssg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jeff Layton , Eric Van Hensbergen , Sasha Levin , lucho@ionkov.net, asmadeus@codewreck.org, v9fs@lists.linux.dev Subject: [PATCH AUTOSEL 6.6 04/16] 9p: explicitly deny setlease attempts Date: Tue, 23 Apr 2024 07:01:37 -0400 Message-ID: <20240423110151.1658546-4-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240423110151.1658546-1-sashal@kernel.org> References: <20240423110151.1658546-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.28 Content-Transfer-Encoding: 8bit From: Jeff Layton [ Upstream commit 7a84602297d36617dbdadeba55a2567031e5165b ] 9p is a remote network protocol, and it doesn't support asynchronous notifications from the server. Ensure that we don't hand out any leases since we can't guarantee they'll be broken when a file's contents change. Signed-off-by: Jeff Layton Signed-off-by: Eric Van Hensbergen Signed-off-by: Sasha Levin --- fs/9p/vfs_file.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 11cd8d23f6f23..8566ddad49ad5 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -591,6 +591,7 @@ const struct file_operations v9fs_file_operations = { .splice_read = v9fs_file_splice_read, .splice_write = iter_file_splice_write, .fsync = v9fs_file_fsync, + .setlease = simple_nosetlease, }; const struct file_operations v9fs_file_operations_dotl = { @@ -605,4 +606,5 @@ const struct file_operations v9fs_file_operations_dotl = { .splice_read = v9fs_file_splice_read, .splice_write = iter_file_splice_write, .fsync = v9fs_file_fsync_dotl, + .setlease = simple_nosetlease, }; -- 2.43.0