(mmap_realloc): When shrinking, make sure number of

pages is rounded towards zero.

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;
        }