[git] CMU Common Lisp branch master updated. snapshot-2014-01-9-gc9a3b19

[Raymond Toy]

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- Log -----------------------------------------------------------------
commit c9a3b19c19a5f2a5a09500c621694cc061cb6d5a
Author: Raymond Toy <toy.raymond at gmail.com>
Date:   Sat Jan 11 17:34:21 2014 -0800

    Remove the zero checking of the heap.
    
    It's been several months without any issue after adding the lazy
    zeroing of heap pages, so it's probably safe to remove the zero
    checking of the heap pages.  It can still be enabled by setting the
    appropriate variables.

diff --git a/src/lisp/gencgc.c b/src/lisp/gencgc.c
index a9c3e96..cdc95e0 100644
--- a/src/lisp/gencgc.c
+++ b/src/lisp/gencgc.c
@@ -367,7 +367,7 @@ boolean gencgc_zero_check_during_free_heap = FALSE;
  * enough.
  */
 
-#define DO_GENCGC_ZERO_CHECK	(gencgc_zero_check || (gencgc_unmap_zero == MODE_LAZY) || (gencgc_unmap_zero == MODE_MADVISE))
+#define DO_GENCGC_ZERO_CHECK	(gencgc_zero_check)
 
 /*
  * Only to the zero check during free_heap if both
@@ -375,7 +375,7 @@ boolean gencgc_zero_check_during_free_heap = FALSE;
  * MODE_MAP or MODE_MEMSET because in all other modes, unallocated
  * pages are known not to contain zeroes.
  */
-#define DO_GENCGC_ZERO_CHECK_DURING_FREE_HEAP	(gencgc_zero_check_during_free_heap && ((gencgc_unmap_zero == MODE_MAP) || (gencgc_unmap_zero == MODE_MEMSET)))
+#define DO_GENCGC_ZERO_CHECK_DURING_FREE_HEAP	(gencgc_zero_check_during_free_heap)
 
 /*
  * The minimum size for a large object.

-----------------------------------------------------------------------

Summary of changes:
 src/lisp/gencgc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)


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