Commit 206506cc authored by Robert P. J. Day's avatar Robert P. J. Day Committed by Linus Torvalds

tmpfs: expand "help" to explain value of TMPFS_POSIX_ACL

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: default avatarRobert P. J. Day <>
Acked-by: default avatarRandy Dunlap <>
Acked-by: default avatarHugh Dickins <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 8079b1c8
......@@ -127,14 +127,21 @@ 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
If you've selected TMPFS, it's possible that you'll also need
this option as there are a number of Linux distros that require
POSIX ACL support under /dev for certain features to work properly.
For example, some distros need this feature for ALSA-related /dev
files for sound to work properly. In short, if you're not sure,
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.
bool "Tmpfs extended attributes"
depends on TMPFS
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