From: Eli Zaretskii <eliz@gnu.org>
Date: Sun, 1 Jun 2014 15:54:56 +0000 (+0300)
Subject: src/w32heap.c (realloc_before_dump): Improve commentary.
X-Git-Tag: emacs-25.0.90~2612^2~709^2~826
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=be04283a7f74d6a5159a312bacd08fb31beee054;p=emacs.git

src/w32heap.c (realloc_before_dump): Improve commentary.
---

diff --git a/src/w32heap.c b/src/w32heap.c
index cc08dc37219..523df909165 100644
--- a/src/w32heap.c
+++ b/src/w32heap.c
@@ -417,6 +417,12 @@ realloc_before_dump (void *ptr, size_t size)
          malloc_before_dump() and free_before_dump() will take care of
          reallocation.  */
       p = malloc_before_dump (size);
+      /* If SIZE is below MaxBlockSize, malloc_before_dump will try to
+	 allocate it in the fixed heap.  If that fails, we could have
+	 kept the block in its original place, above bc_limit, instead
+	 of failing the call as below.  But this doesn't seem to be
+	 worth the added complexity, as loadup allocates only a very
+	 small number of large blocks, and never reallocates them.  */
       if (p)
 	{
 	  CopyMemory (p, ptr, size);