tree 7553c06ca7ba059d30289bb8f2e09753671220de
parent 4dc6ec00f6347b72312fa41dfc587d5302b05544
author Pavel Emelyanov <xemul@openvz.org> 1273836816 +0400
committer J. Bruce Fields <bfields@citi.umich.edu> 1273877174 -0400

NFSD: don't report compiled-out versions as present

The /proc/fs/nfsd/versions file calls nfsd_vers() to check whether
the particular nfsd version is present/available. The problem is
that once I turn off e.g. NFSD-V4 this call returns -1 which is
true from the callers POV which is wrong.

The proposal is to report false in that case.

The bug has existed since 6658d3a7bbfd1768 "[PATCH] knfsd: remove
nfsd_versbits as intermediate storage for desired versions".

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: stable@kernel.org
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>