X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;ds=sidebyside;f=daemon%2Fguestfsd.c;h=49aca08d2bd08856d329d97db989610f48666743;hb=0da3d72174642da66a3370c8f661aa7e47925bf0;hp=f9e5a682b2066401ec6167605c159b9df7d2ff2a;hpb=aee7d55fcf754d97d945c318ec06d6387ade067b;p=libguestfs.git

diff --git a/daemon/guestfsd.c b/daemon/guestfsd.c
index f9e5a68..49aca08 100644
--- a/daemon/guestfsd.c
+++ b/daemon/guestfsd.c
@@ -554,6 +554,13 @@ count_strings (char *const *argv)
   return argc;
 }
 
+/* http://graphics.stanford.edu/~seander/bithacks.html#DetermineIfPowerOf2 */
+int
+is_power_of_2 (unsigned long v)
+{
+  return v && ((v & (v - 1)) == 0);
+}
+
 static int
 compare (const void *vp1, const void *vp2)
 {