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-rw-r--r--malloc/malloc.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 44831bbb1d..65be277097 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1,4 +1,4 @@
- /* Malloc implementation for multiple threads without lock contention.
+/* Malloc implementation for multiple threads without lock contention.
Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Wolfram Gloger <wg@malloc.de>
@@ -3691,14 +3691,14 @@ public_cALLOc(size_t n, size_t elem_size)
/* Two optional cases in which clearing not necessary */
#if HAVE_MMAP
- if (chunk_is_mmapped(p))
+ if (perturb_byte == 0 && chunk_is_mmapped(p))
return mem;
#endif
csz = chunksize(p);
#if MORECORE_CLEARS
- if (p == oldtop && csz > oldtopsize) {
+ if (perturb_byte == 0 && (p == oldtop && csz > oldtopsize)) {
/* clear only the bytes from non-freshly-sbrked memory */
csz = oldtopsize;
}