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 3CDB040862; Tue, 14 May 2024 11:55:38 +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=1715687738; cv=none; b=LnhPdlQdBs2aXWsDmvrn5MbtEFQdkkTJM4hLzv10/7MkHEBfbVU2VIUkL/kbOiWhUxE+dEzTxXON67seRq/G3p4QVCjiWCXmSiD8jTaKQ557upZe+APxvAyHPVTi1KRQhMe4k/slTeMZJkRK2Q886cYIfEPakP2ysy3qSZnuF94= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715687738; c=relaxed/simple; bh=LM7QhylfnORcaZqwYXrudrVJY6CB3pT1McD/y6nQW8s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Bjf3tvPDoZaEIoIOB8cVMdecjTl+5dhzViuTsjrS4cdvZDpHGB5U9BJdWqSxjxYhjJOd8+IS5L3GCAC1gurvrArNAY0UmDrcC+gCAGNImdEiSiFEP8HeNlSkKLyStYxVKE9fMED8+mjNd/O2E/lMDMbKafwsz49FmfR+S1PnSmE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ZsOFHg0G; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ZsOFHg0G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B9447C32782; Tue, 14 May 2024 11:55:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1715687738; bh=LM7QhylfnORcaZqwYXrudrVJY6CB3pT1McD/y6nQW8s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZsOFHg0GH6QiPfAWyVjI267XcjgpMyfO8hLq/RHJs78AdS8JgkFG0JDNPDwiGhru5 7Ng8udfnVwgilAnbVbhx/HSp0I8UI21zHO+mCPIuYVWrgf/WR0aZUdTOeh7aJj5y40 OOHcyoO7CBg8wSZ1eZk9A4fDe+Dg6VQIjMqhRuV8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jeff Layton , Eric Van Hensbergen , Sasha Levin Subject: [PATCH 5.15 088/168] 9p: explicitly deny setlease attempts Date: Tue, 14 May 2024 12:19:46 +0200 Message-ID: <20240514101010.015580033@linuxfoundation.org> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240514101006.678521560@linuxfoundation.org> References: <20240514101006.678521560@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ 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 7437b185fa8eb..0c84d414660ca 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -660,6 +660,7 @@ const struct file_operations v9fs_file_operations = { .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .fsync = v9fs_file_fsync, + .setlease = simple_nosetlease, }; const struct file_operations v9fs_file_operations_dotl = { @@ -701,4 +702,5 @@ const struct file_operations v9fs_mmap_file_operations_dotl = { .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .fsync = v9fs_file_fsync_dotl, + .setlease = simple_nosetlease, }; -- 2.43.0