[PATCH] TMPFS: Expand "help" to explain value of TMPFS_POSIX_ACL

From: Robert P. J. Day
Date: Sat Jun 18 2011 - 07:45:50 EST

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>


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
- 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 (ie., 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.
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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