dsa: Cope with the possibility that SIZE_MAX is not defined.

Per buildfarm member gaur and Tom Lane.

diff --git a/src/backend/utils/mmgr/dsa.c b/src/backend/utils/mmgr/dsa.c
index aa3ab58d38a730ba4b6a199b54d73f5386dd9ff4..abe3f1a63d19729c3b15bd0dadc41e365080e1b1 100644 (file)
--- a/src/backend/utils/mmgr/dsa.c
+++ b/src/backend/utils/mmgr/dsa.c
@@ -1184,7 +1184,7 @@ create_internal(void *place, size_t size,
    control->segment_header.freed = false;
    control->segment_header.size = DSA_INITIAL_SEGMENT_SIZE;
    control->handle = control_handle;
-   control->max_total_segment_size = SIZE_MAX;
+   control->max_total_segment_size = (Size) -1;
    control->total_segment_size = size;
    memset(&control->segment_handles[0], 0,
           sizeof(dsm_handle) * DSA_MAX_SEGMENTS);