SUNRPC: Fix "EPIPE" error on mount of rpcsec_gss-protected partitions
gss_create_upcall() should not error just because rpc.gssd closed the
pipe on its end. Instead, it should requeue the pending requests and then
retry.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index f44f46f..8d78228 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -638,7 +638,7 @@
gss_msg);
atomic_inc(&gss_msg->count);
gss_unhash_msg(gss_msg);
- if (msg->errno == -ETIMEDOUT || msg->errno == -EPIPE) {
+ if (msg->errno == -ETIMEDOUT) {
unsigned long now = jiffies;
if (time_after(now, ratelimit)) {
printk(KERN_WARNING "RPC: AUTH_GSS upcall timed out.\n"
@@ -786,7 +786,9 @@
cred->gc_flags = 0;
cred->gc_base.cr_ops = &gss_credops;
cred->gc_service = gss_auth->service;
- err = gss_create_upcall(gss_auth, cred);
+ do {
+ err = gss_create_upcall(gss_auth, cred);
+ } while (err == -EAGAIN);
if (err < 0)
goto out_err;