LU-13498 gss: update sequence in case of target disconnect

[fs/lustre-release.git] / lustre / ptlrpc / gss / gss_keyring.c

diff --git a/lustre/ptlrpc/gss/gss_keyring.c b/lustre/ptlrpc/gss/gss_keyring.c
index d2640a9..820037d 100644 (file)
--- a/lustre/ptlrpc/gss/gss_keyring.c
+++ b/lustre/ptlrpc/gss/gss_keyring.c
@@ -1130,8 +1130,16 @@ int gss_sec_display_kr(struct ptlrpc_sec *sec, struct seq_file *seq)
 static
 int gss_cli_ctx_refresh_kr(struct ptlrpc_cli_ctx *ctx)
 {
-        /* upcall is already on the way */
-        return 0;
+       /* upcall is already on the way */
+       struct gss_cli_ctx *gctx = ctx ? ctx2gctx(ctx) : NULL;
+
+       /* record latest sequence number in buddy svcctx */
+       if (gctx && !rawobj_empty(&gctx->gc_svc_handle) &&
+           sec_is_reverse(gctx->gc_base.cc_sec)) {
+               return gss_svc_upcall_update_sequence(&gctx->gc_svc_handle,
+                                            (__u32)atomic_read(&gctx->gc_seq));
+       }
+       return 0;
 }
 
 static