Re: [PATCH v2] TMPFS: Expand "help" to explain value ofTMPFS_POSIX_ACL
From: Randy Dunlap
Date: Sat Jun 18 2011 - 11:11:42 EST
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@xxxxxxxxxxxxxx>
Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
> 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
> - 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
> Twitter: http://twitter.com/rpjday
> LinkedIn: http://ca.linkedin.com/in/rpjday
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