Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756082Ab1FRPLi (ORCPT ); Sat, 18 Jun 2011 11:11:38 -0400 Received: from oproxy3-pub.bluehost.com ([69.89.21.8]:43992 "HELO oproxy3-pub.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753297Ab1FRPLg (ORCPT ); Sat, 18 Jun 2011 11:11:36 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=xenotime.net; h=Received:Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References:Organization:X-Mailer:Mime-Version:Content-Type:Content-Transfer-Encoding:X-Identified-User; b=RGPRgDLKBkjzL1I9GvWl7gs8Am0sRWs+tW9FrP3dwX6puJUtoaYlaakdDnzfuXuk6+M0zwWJI7n8UNejKgxRraJbpwEH7FBbI7wtfEpslLFqJapQlEig6mUjwfN65ddl; Date: Sat, 18 Jun 2011 08:11:34 -0700 From: Randy Dunlap To: "Robert P. J. Day" Cc: Linux Kernel Mailing List , hughd@google.com, Andrew Morton Subject: Re: [PATCH v2] TMPFS: Expand "help" to explain value of TMPFS_POSIX_ACL Message-Id: <20110618081134.fbafed0f.rdunlap@xenotime.net> In-Reply-To: References: Organization: YPO4 X-Mailer: Sylpheed 2.7.1 (GTK+ 2.16.6; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Identified-User: {1807:box742.bluehost.com:xenotime:xenotime.net} {sentby:smtp auth 50.53.38.135 authed with rdunlap@xenotime.net} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2499 Lines: 67 On Sat, 18 Jun 2011 11:10:20 -0400 (EDT) Robert P. J. Day wrote: > > 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 Acked-by: Randy Dunlap > --- > > 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 (e.g., 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/ --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** -- 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/