Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755673Ab1FRLpo (ORCPT ); Sat, 18 Jun 2011 07:45:44 -0400 Received: from astoria.ccjclearline.com ([64.235.106.9]:41725 "EHLO astoria.ccjclearline.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752002Ab1FRLpn (ORCPT ); Sat, 18 Jun 2011 07:45:43 -0400 Date: Sat, 18 Jun 2011 07:45:35 -0400 (EDT) From: "Robert P. J. Day" X-X-Sender: rpjday@localhost6.localdomain6 To: Linux Kernel Mailing List cc: hughd@google.com Subject: [PATCH] TMPFS: Expand "help" to explain value of TMPFS_POSIX_ACL Message-ID: User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - astoria.ccjclearline.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - crashcourse.ca X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1947 Lines: 52 Expand the fs/Kconfig "help" info to clarify why it's a bad idea to deselect the TMPFS_POSIX_ACL config variable. Signed-off-by: Robert P. J. Day --- diff --git a/fs/Kconfig b/fs/Kconfig index 19891aa..4217543 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -127,14 +127,20 @@ config TMPFS_POSIX_ACL select TMPFS_XATTR select GENERIC_ACL help - POSIX Access Control Lists (ACLs) support permissions for users and - groups beyond the owner/group/world scheme. + POSIX Access Control Lists (ACLs) support additional access rights + for users and groups beyond the standard owner/group/world scheme, + and this option selects support for ACLs specifically for tmpfs + filesystems. + + If you've selected TMPFS, you almost certainly want this option + as well since a number of user space features (ie., ALSA sound) + require POSIX ACL support under /dev to work properly. In other + words, if you're not sure and you have no *compelling* reason to + deselect this feature, say Y. To learn more about Access Control Lists, visit the POSIX ACLs for Linux website . - If you don't know what Access Control Lists are, say N. - config TMPFS_XATTR bool "Tmpfs extended attributes" depends on TMPFS -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ======================================================================== -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/