From: green <green>
Date: Tue, 6 Dec 2005 10:35:59 +0000 (+0000)
Subject: b=9879
X-Git-Tag: v1_7_100~1^103~4^2~201
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=4352364ff34a5f6753722b3efe4a85a0a5921462;p=fs%2Flustre-release.git

b=9879

Return error to client if it requests inode bits locks and we believe it
does not support such locks.
---

diff --git a/lustre/ldlm/ldlm_lockd.c b/lustre/ldlm/ldlm_lockd.c
index 846feee..80d55f0 100644
--- a/lustre/ldlm/ldlm_lockd.c
+++ b/lustre/ldlm/ldlm_lockd.c
@@ -709,6 +709,13 @@ int ldlm_handle_enqueue(struct ptlrpc_request *req,
                 GOTO(out, rc = -EFAULT);
         }
 
+        if (!(req->rq_export->exp_connect_flags & OBD_CONNECT_IBITS) &&
+            dlm_req->lock_desc.l_resource.lr_type == LDLM_IBITS) {
+                DEBUG_REQ(D_ERROR, req, "Ibits lock request from unaware "
+                          "client?\n");
+                GOTO(out, rc = -EPROTO);
+        }
+
         /* INODEBITS_INTEROP: Perform conversion from plain lock to
          * inodebits lock if client does not support them.
          */