1 files changed, 18 insertions, 1 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index f3aa9b08b228..19891aab9c6e 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -47,7 +47,7 @@ config FS_POSIX_ACL
         def_bool n
 
 config EXPORTFS
-        bool
+        tristate
 
 config FILE_LOCKING
         bool "Enable POSIX file locking API" if EXPERT
@@ -124,6 +124,7 @@ config TMPFS
 config TMPFS_POSIX_ACL
         bool "Tmpfs POSIX Access Control Lists"
         depends on TMPFS
+        select TMPFS_XATTR
         select GENERIC_ACL
         help
           POSIX Access Control Lists (ACLs) support permissions for users and
@@ -134,6 +135,22 @@ config TMPFS_POSIX_ACL
 
           If you don't know what Access Control Lists are, say N.
 
+config TMPFS_XATTR
+        bool "Tmpfs extended attributes"
+        depends on TMPFS
+        default n
+        help
+          Extended attributes are name:value pairs associated with inodes by
+          the kernel or by users (see the attr(5) manual page, or visit
+          <http://acl.bestbits.at/> for details).
+
+          Currently this enables support for the trusted.* and
+          security.* namespaces.
+
+          You need this for POSIX ACL support on tmpfs.
+
+          If unsure, say N.
+
 config HUGETLBFS
         bool "HugeTLB file system support"
         depends on X86 || IA64 || SPARC64 || (S390 && 64BIT) || \