nfsd4: better reservation of head space for krb5
RPC_MAX_AUTH_SIZE is scattered around several places. Better to set it
once in the auth code, where this kind of estimate should be made. And
while we're at it we can leave it zero when we're not using krb5i or
krb5p.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 85cb647..1bc7cd0 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -260,7 +260,10 @@
void * rq_argp; /* decoded arguments */
void * rq_resp; /* xdr'd results */
void * rq_auth_data; /* flavor-specific data */
-
+ int rq_auth_slack; /* extra space xdr code
+ * should leave in head
+ * for krb5i, krb5p.
+ */
int rq_reserved; /* space on socket outq
* reserved for this request
*/
@@ -456,11 +459,7 @@
*/
static inline void svc_reserve_auth(struct svc_rqst *rqstp, int space)
{
- int added_space = 0;
-
- if (rqstp->rq_authop->flavour)
- added_space = RPC_MAX_AUTH_SIZE;
- svc_reserve(rqstp, space + added_space);
+ svc_reserve(rqstp, space + rqstp->rq_auth_slack);
}
#endif /* SUNRPC_SVC_H */