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Diffstat (limited to 'fs/nfsd/nfsctl.c')
-rw-r--r--fs/nfsd/nfsctl.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index dc74a947a440..d1e581a60480 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -581,7 +581,9 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size)
cmd = sign == '-' ? NFSD_CLEAR : NFSD_SET;
switch(num) {
+#ifdef CONFIG_NFSD_V2
case 2:
+#endif
case 3:
nfsd_vers(nn, num, cmd);
break;
@@ -601,7 +603,9 @@ static ssize_t __write_versions(struct file *file, char *buf, size_t size)
}
break;
default:
- return -EINVAL;
+ /* Ignore requests to disable non-existent versions */
+ if (cmd == NFSD_SET)
+ return -EINVAL;
}
vers += len + 1;
} while ((len = qword_get(&mesg, vers, size)) > 0);