From: hboehm <hboehm>
Date: Sat, 29 Apr 2006 00:07:18 +0000 (+0000)
Subject: 2006-04-28  Hans Boehm <Hans.Boehm@hp.com>
X-Git-Tag: gc7_0alpha7~43
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=82b92fd4aca31ccbcc790ed5dd82e632b87d0e31;p=gc

2006-04-28  Hans Boehm <Hans.Boehm@hp.com>
	* Improve comment describing page hash tables.
---

diff --git a/include/private/gc_priv.h b/include/private/gc_priv.h
index fec8e08f..ca06df03 100644
--- a/include/private/gc_priv.h
+++ b/include/private/gc_priv.h
@@ -525,8 +525,11 @@ extern GC_warn_proc GC_current_warn_proc;
 
 
 /*
- * Hash table representation of sets of pages.  This assumes it is
- * OK to add spurious entries to sets.
+ * Hash table representation of sets of pages.
+ * Implements a map from aligned HBLKSIZE chunks of the address space to one
+ * bit each.
+ * This assumes it is OK to spuriously set bits, e.g. because multiple
+ * addresses are represented by a single location.
  * Used by black-listing code, and perhaps by dirty bit maintenance code.
  */