(mmap_realloc): When shrinking, make sure number of

pages is rounded towards zero.

diff --git a/src/ChangeLog b/src/ChangeLog
index cab7a2a94b3594771bb15d92abf127d884860301..f66e221ac33f430446b1671ed28a65eb8baf44f0 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2002-07-21  Ken Raeburn  <raeburn@gnu.org>
+
+       * buffer.c (mmap_realloc): When shrinking, make sure number of
+       pages is rounded towards zero.
+
 2002-07-20  Richard M. Stallman  <rms@gnu.org>
 
        * print.c (print_error_message): New args CONTEXT and CALLER.

diff --git a/src/buffer.c b/src/buffer.c
index 6656b8d1f4e4fe2c53a14411427e50abd71fe7bb..bf1b49e6ff481815815bfaf2ac768e031023e7a2 100644 (file)
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4670,7 +4670,7 @@ mmap_realloc (var, nbytes)
        {
          /* Shrinking by at least a page.  Let's give some
             memory back to the system.  */
-         mmap_enlarge (r, - (room - nbytes) / mmap_page_size);
+         mmap_enlarge (r, - ((room - nbytes) / mmap_page_size));
          result = *var;
          r->nbytes_specified = nbytes;
        }