Function extent_deregister_impl

deps/jemalloc/src/extent.c:854–875

* Removes all pointers to the given extent from the global rtree. */

 * Removes all pointers to the given extent from the global rtree.
 */
static void
extent_deregister_impl(tsdn_t *tsdn, extent_t *extent, bool gdump) {
	rtree_ctx_t rtree_ctx_fallback;
	rtree_ctx_t *rtree_ctx = tsdn_rtree_ctx(tsdn, &rtree_ctx_fallback);
	rtree_leaf_elm_t *elm_a, *elm_b;
	extent_rtree_leaf_elms_lookup(tsdn, rtree_ctx, extent, true, false,
	    &elm_a, &elm_b);

	extent_lock(tsdn, extent);

	extent_rtree_write_acquired(tsdn, elm_a, elm_b, NULL, SC_NSIZES, false);
	if (extent_slab_get(extent)) {
		extent_interior_deregister(tsdn, rtree_ctx, extent);
		extent_slab_set(extent, false);
	}

	extent_unlock(tsdn, extent);

	if (config_prof && gdump) {
		extent_gdump_sub(tsdn, extent);
	}
}

static void
extent_deregister(tsdn_t *tsdn, extent_t *extent) {