ITS#4720 release csn mutex before checkpointing.

diff --git a/servers/slapd/overlays/syncprov.c b/servers/slapd/overlays/syncprov.c
index c17597392fac990d23774cfb42288e1c68234cee..85aa485c3d5d61f663cee5d2b89d24b97be7c2dd 100644 (file)
--- a/servers/slapd/overlays/syncprov.c
+++ b/servers/slapd/overlays/syncprov.c
@@ -1260,9 +1260,9 @@ syncprov_op_cleanup( Operation *op, SlapReply *rs )
 }
 
 static void
-syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
+syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on,
+       struct berval *csn )
 {
-       syncprov_info_t         *si = on->on_bi.bi_private;
        Modifications mod;
        Operation opm;
        SlapReply rsm = { 0 };
@@ -1270,12 +1270,12 @@ syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
        slap_callback cb = {0};
 
        /* If ctxcsn is empty, delete it */
-       if ( BER_BVISEMPTY( &si->si_ctxcsn )) {
+       if ( BER_BVISEMPTY( csn )) {
                mod.sml_values = NULL;
        } else {
                mod.sml_values = bv;
                bv[1].bv_val = NULL;
-               bv[0] = si->si_ctxcsn;
+               bv[0] = *csn;
        }
        mod.sml_nvalues = NULL;
        mod.sml_desc = slap_schema.si_ad_contextCSN;
@@ -1510,6 +1510,7 @@ syncprov_op_response( Operation *op, SlapReply *rs )
        {
                struct berval maxcsn = BER_BVNULL;
                char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
+               int do_check = 0;
 
                /* Update our context CSN */
                cbuf[0] = '\0';
@@ -1532,7 +1533,6 @@ syncprov_op_response( Operation *op, SlapReply *rs )
 
                si->si_numops++;
                if ( si->si_chkops || si->si_chktime ) {
-                       int do_check=0;
                        if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
                                do_check = 1;
                                si->si_numops = 0;
@@ -1542,15 +1542,16 @@ syncprov_op_response( Operation *op, SlapReply *rs )
                                do_check = 1;
                                si->si_chklast = op->o_time;
                        }
-                       if ( do_check ) {
-                               syncprov_checkpoint( op, rs, on );
-                       }
                }
                ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
 
                opc->sctxcsn.bv_len = maxcsn.bv_len;
                opc->sctxcsn.bv_val = cbuf;
 
+               if ( do_check ) {
+                       syncprov_checkpoint( op, rs, on, &opc->sctxcsn );
+               }
+
                /* Handle any persistent searches */
                if ( si->si_ops ) {
                        switch(op->o_tag) {
@@ -2472,7 +2473,7 @@ syncprov_db_close(
                op->o_bd = be;
                op->o_dn = be->be_rootdn;
                op->o_ndn = be->be_rootndn;
-               syncprov_checkpoint( op, &rs, on );
+               syncprov_checkpoint( op, &rs, on, &si->si_ctxcsn );
                ldap_pvt_thread_pool_context_reset( thrctx );
        }