ITS#8789 avoid unnecessary writes of context entry

[openldap] / servers / slapd / sl_malloc.c

diff --git a/servers/slapd/sl_malloc.c b/servers/slapd/sl_malloc.c
index ff56c4f249c2258308bfb98bee799989cfbdb718..32b61f40e4937fdfd9f56dcab7a4bbbe8ac3d87e 100644 (file)
--- a/servers/slapd/sl_malloc.c
+++ b/servers/slapd/sl_malloc.c
@@ -137,6 +137,9 @@ slap_sl_mem_destroy(
        struct slab_object *so;
        int i;
 
+       if (!sh)
+               return;
+
        if (!sh->sh_stack) {
                for (i = 0; i <= sh->sh_maxorder - order_start; i++) {
                        so = LDAP_LIST_FIRST(&sh->sh_free[i]);
@@ -649,6 +652,21 @@ slap_sl_free(void *ptr, void *ctx)
        }
 }
 
+void
+slap_sl_release( void *ptr, void *ctx )
+{
+       struct slab_heap *sh = ctx;
+       if ( sh && ptr >= sh->sh_base && ptr <= sh->sh_end )
+               sh->sh_last = ptr;
+}
+
+void *
+slap_sl_mark( void *ctx )
+{
+       struct slab_heap *sh = ctx;
+       return sh->sh_last;
+}
+
 /*
  * Return the memory context of the current thread if the given block of
  * memory belongs to it, otherwise return NULL.