nfsd: allow deprecated interface to be compiled out.

Add CONFIG_NFSD_DEPRECATED, default to y.
Only include deprecated interface if this is defined.
This allows distros to remove this interface before the official
removal, and allows developers to test without it.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 4264377552e2..18b3e8975fe0 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -28,6 +28,18 @@ config NFSD
 
           If unsure, say N.
 
+config NFSD_DEPRECATED
+        bool "Include support for deprecated syscall interface to NFSD"
+        depends on NFSD
+        default y
+        help
+          The syscall interface to nfsd was obsoleted in 2.6.0 by a new
+          filesystem based interface.  The old interface is due for removal
+          in 2.6.40.  If you wish to remove the interface before then
+          say N.
+
+          In unsure, say Y.
+
 config NFSD_V2_ACL
         bool
         depends on NFSD