Re: [PATCH v2] TMPFS: Expand "help" to explain value ofTMPFS_POSIX_ACL
From: Hugh Dickins
Date: Sat Jun 18 2011 - 11:44:59 EST
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 <rpjday@xxxxxxxxxxxxxx>
>
> Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
Yes, that's good, Robert, thanks - I'm glad I left the writing to you.
Acked-by: Hugh Dickins <hughd@xxxxxxxxxx>
>
>
> > ---
> >
> > 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
> >
> > --
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