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authorPavel Emelyanov <xemul@openvz.org>2010-05-14 15:33:36 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2010-07-05 11:08:41 -0700
commitb9cb946fac3288e7a35571525ef09946e2ba6d7f (patch)
treedfc1f8b31f151bfd9b572cfb730195847acbf82e
parent90bfd720bcda3a04e22be93b66138a117c0bcf28 (diff)
NFSD: don't report compiled-out versions as present
commit 15ddb4aec54422ead137b03ea4e9b3f5db3f7cc2 upstream. 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> Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/nfsd/nfssvc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 80292ff5e924..e02db8e44f4e 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -126,7 +126,7 @@ struct svc_program nfsd_program = {
int nfsd_vers(int vers, enum vers_op change)
{
if (vers < NFSD_MINVERS || vers >= NFSD_NRVERS)
- return -1;
+ return 0;
switch(change) {
case NFSD_SET:
nfsd_versions[vers] = nfsd_version[vers];