Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756256Ab1FRPox (ORCPT ); Sat, 18 Jun 2011 11:44:53 -0400 Received: from smtp-out.google.com ([216.239.44.51]:35968 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752908Ab1FRPov (ORCPT ); Sat, 18 Jun 2011 11:44:51 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=google.com; s=beta; h=date:from:x-x-sender:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version:content-type; b=j0dM3rpmHbVZlqNIHviYrQ+NvWtvxco8CaNM4mBr6HdNgIJ7IQ/fo45qj/bV+bVBt6 9gzO3YBPh2oG+1jUvk9Q== Date: Sat, 18 Jun 2011 08:44:36 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@sister.anvils To: "Robert P. J. Day" cc: Randy Dunlap , Linux Kernel Mailing List , Andrew Morton Subject: Re: [PATCH v2] TMPFS: Expand "help" to explain value of TMPFS_POSIX_ACL In-Reply-To: <20110618081134.fbafed0f.rdunlap@xenotime.net> Message-ID: References: <20110618081134.fbafed0f.rdunlap@xenotime.net> User-Agent: Alpine 2.00 (LSU 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1970 Lines: 55 On Sat, 18 Jun 2011, Randy Dunlap wrote: > 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 Yes, that's good, Robert, thanks - I'm glad I left the writing to you. Acked-by: Hugh Dickins > > > > --- > > > > 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 > > > > -- -- 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/