From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 23 Jul 2015 02:51:57 +0000 (+0200)
Subject: bitmap: bitmap_clear()
X-Git-Tag: v223~66^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=05fb03beeecd730e5525253b9c3c8706e1834b09;p=thirdparty%2Fsystemd.git

bitmap: bitmap_clear()

No need to actually reset the bitmap, we can just truncate it back zero
size. That not only makes bitmap_clear() quicker, but also subsequent
bitmap_isclear().
---

diff --git a/src/basic/bitmap.c b/src/basic/bitmap.c
index 0747749d13b..7e47c2d09f6 100644
--- a/src/basic/bitmap.c
+++ b/src/basic/bitmap.c
@@ -140,12 +140,9 @@ bool bitmap_isclear(Bitmap *b) {
 }
 
 void bitmap_clear(Bitmap *b) {
-        unsigned i;
-
         assert(b);
 
-        for (i = 0; i < b->n_bitmaps; i++)
-                b->bitmaps[i] = 0;
+        b->n_bitmaps = 0;
 }
 
 bool bitmap_iterate(Bitmap *b, Iterator *i, unsigned *n) {