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watch_queue: Drop references to /dev/watch_queue

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The merged API doesn't use a watch_queue device, but instead relies on
pipes, so let the documentation reflect that.

Fixes: f7e47677e3 ("watch_queue: Add a key/keyring notification facility")
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Ben Boeckel <mathstuf@gmail.com>
This commit is contained in:
Gabriel Krisman Bertazi 2020-11-24 15:28:02 -05:00 committed by David Howells
parent 796e46f9e2
commit 8fe62e0c0e
4 changed files with 8 additions and 8 deletions
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4
Documentation/security/keys/core.rst
View File

@ -1040,8 +1040,8 @@ The keyctl syscall functions are:
"key" is the ID of the key to be watched.
"queue_fd" is a file descriptor referring to an open "/dev/watch_queue"
which manages the buffer into which notifications will be delivered.
"queue_fd" is a file descriptor referring to an open pipe which
manages the buffer into which notifications will be delivered.
"filter" is either NULL to remove a watch or a filter specification to
indicate what events are required from the key.

2
samples/Kconfig
View File

@ -210,7 +210,7 @@ config SAMPLE_WATCHDOG
depends on CC_CAN_LINK
config SAMPLE_WATCH_QUEUE
bool "Build example /dev/watch_queue notification consumer"
bool "Build example watch_queue notification API consumer"
depends on CC_CAN_LINK && HEADERS_INSTALL
help
Build example userspace program to use the new mount_notify(),

2
samples/watch_queue/watch_test.c
View File

@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
/* Use /dev/watch_queue to watch for notifications.
/* Use watch_queue API to watch for notifications.
*
* Copyright (C) 2020 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)

8
security/keys/Kconfig
View File

@ -119,7 +119,7 @@ config KEY_NOTIFICATIONS
bool "Provide key/keyring change notifications"
depends on KEYS && WATCH_QUEUE
help
This option provides support for getting change notifications on keys
and keyrings on which the caller has View permission. This makes use
of the /dev/watch_queue misc device to handle the notification
buffer and provides KEYCTL_WATCH_KEY to enable/disable watches.
This option provides support for getting change notifications
on keys and keyrings on which the caller has View permission.
This makes use of pipes to handle the notification buffer and
provides KEYCTL_WATCH_KEY to enable/disable watches.