Added highbit() and lowbit() macros

Signed-off-by: Tom Caputi <tcaputi@datto.com> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#562
behlendorf · Jul 20, 2016 · d2f97b2 · d2f97b2
1 parent 5ad98ad
commit d2f97b2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/sys/sysmacros.h b/include/sys/sysmacros.h
@@ -158,6 +158,9 @@ extern uint32_t zone_get_hostid(void *zone);
 extern void spl_setup(void);
 extern void spl_cleanup(void);
 
+#define	highbit(x)		__fls(x)
+#define	lowbit(x)		__ffs(x)
+
 #define	highbit64(x)		fls64(x)
 #define	makedevice(maj,min)	makedev(maj,min)