xnu-2782.20.48.tar.gz

[apple/xnu.git] / osfmk / default_pager / dp_memory_object.c

diff --git a/osfmk/default_pager/dp_memory_object.c b/osfmk/default_pager/dp_memory_object.c
index 44dc731ff67bcc53b9dcca9301020951c552d469..3ffa10e447a17a31aa5a3fb06cc7ddaa09136469 100644 (file)
--- a/osfmk/default_pager/dp_memory_object.c
+++ b/osfmk/default_pager/dp_memory_object.c
@@ -777,6 +777,9 @@ dp_memory_object_data_return(
        vs_lookup(mem_obj, vs);
 
         default_pager_total++;
        vs_lookup(mem_obj, vs);
 
         default_pager_total++;

+
+       /* might be unreachable if VS_TRY_LOCK is, by definition, always true */
+       __unreachable_ok_push

        if(!VS_TRY_LOCK(vs)) {
                /* the call below will not be done by caller when we have */
                /* a synchronous interface */
        if(!VS_TRY_LOCK(vs)) {
                /* the call below will not be done by caller when we have */
                /* a synchronous interface */


@@ -793,6 +796,7 @@ dp_memory_object_data_return(
                upl_deallocate(upl);
                return KERN_SUCCESS;
        }
                upl_deallocate(upl);
                return KERN_SUCCESS;
        }

+       __unreachable_ok_pop

 
        if ((vs->vs_seqno != vs->vs_next_seqno++)
                        || (vs->vs_readers)
 
        if ((vs->vs_seqno != vs->vs_next_seqno++)
                        || (vs->vs_readers)