From: Randy Dunlap <rdunlap@xenotime.net>
To: "Robert P. J. Day" <rpjday@crashcourse.ca>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
hughd@google.com, Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH v2] TMPFS: Expand "help" to explain value of TMPFS_POSIX_ACL
Date: Sat, 18 Jun 2011 08:11:34 -0700 [thread overview]
Message-ID: <20110618081134.fbafed0f.rdunlap@xenotime.net> (raw)
In-Reply-To: <alpine.DEB.2.02.1106181108210.3831@localhost6.localdomain6>
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 <rpjday@crashcourse.ca>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
> ---
>
> 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 <http://acl.bestbits.at/>.
>
> - 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
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---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
next prev parent reply other threads:[~2011-06-18 15:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-18 15:10 Robert P. J. Day
2011-06-18 15:11 ` Randy Dunlap [this message]
2011-06-18 15:44 ` Hugh Dickins
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