From: Juan Quintela <quintela@redhat.com>
Date: Tue, 8 Oct 2013 14:12:17 +0000 (+0200)
Subject: bitmap: Add bitmap_zero_extend operation
X-Git-Tag: Tizen_Studio_1.3_Release_p2.3.1~386^2~42^2~242^2~21
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=164590a60fd685399da259ac41b338d9a0b9d6c0;p=sdk%2Femulator%2Fqemu.git

bitmap: Add bitmap_zero_extend operation

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
---

diff --git a/include/qemu/bitmap.h b/include/qemu/bitmap.h
index afdd257d8f..1babd5d812 100644
--- a/include/qemu/bitmap.h
+++ b/include/qemu/bitmap.h
@@ -220,4 +220,13 @@ unsigned long bitmap_find_next_zero_area(unsigned long *map,
                                          unsigned long nr,
                                          unsigned long align_mask);
 
+static inline unsigned long *bitmap_zero_extend(unsigned long *old,
+                                                long old_nbits, long new_nbits)
+{
+    long new_len = BITS_TO_LONGS(new_nbits) * sizeof(unsigned long);
+    unsigned long *new = g_realloc(old, new_len);
+    bitmap_clear(new, old_nbits, new_nbits - old_nbits);
+    return new;
+}
+
 #endif /* BITMAP_H */