LU-11444 ptlrpc: resend may corrupt the data

[fs/lustre-release.git] / lustre / mdt / mdt_reint.c

diff --git a/lustre/mdt/mdt_reint.c b/lustre/mdt/mdt_reint.c
index 241bed1..0fa2b6b 100644 (file)
--- a/lustre/mdt/mdt_reint.c
+++ b/lustre/mdt/mdt_reint.c
@@ -649,6 +649,8 @@ static int mdt_reint_setattr(struct mdt_thread_info *info,
        if (info->mti_dlm_req)
                ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);
 
+       OBD_RACE(OBD_FAIL_PTLRPC_RESEND_RACE);
+
        repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
        mo = mdt_object_find(info->mti_env, mdt, rr->rr_fid1);
        if (IS_ERR(mo))
@@ -1129,6 +1131,11 @@ static int mdt_reint_link(struct mdt_thread_info *info,
        if (OBD_FAIL_CHECK(OBD_FAIL_MDS_REINT_LINK))
                RETURN(err_serious(-ENOENT));
 
+       if (OBD_FAIL_PRECHECK(OBD_FAIL_PTLRPC_RESEND_RACE)) {
+               req->rq_no_reply = 1;
+               RETURN(err_serious(-ENOENT));
+       }
+
        if (info->mti_dlm_req)
                ldlm_request_cancel(req, info->mti_dlm_req, 0, LATF_SKIP);