[XFS] Use is_power_of_2 instead of open coding checks

SGI-PV: 966576
SGI-Modid: xfs-linux-melb:xfs-kern:28950a

Signed-off-by: Vignesh Babu <vignesh.babu@wipro.com>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 3ca5d43b8345..8fdd30d9ba56 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -49,6 +49,7 @@
 #include "xfs_quota.h"
 #include "xfs_acl.h"
 
+#include <linux/log2.h>
 
 kmem_zone_t *xfs_ifork_zone;
 kmem_zone_t *xfs_inode_zone;
@@ -4184,7 +4185,7 @@ xfs_iext_realloc_direct(
                         ifp->if_bytes = new_size;
                         return;
                 }
-                if ((new_size & (new_size - 1)) != 0) {
+                if (!is_power_of_2(new_size)){
                         rnew_size = xfs_iroundup(new_size);
                 }
                 if (rnew_size != ifp->if_real_bytes) {
@@ -4207,7 +4208,7 @@ xfs_iext_realloc_direct(
          */
         else {
                 new_size += ifp->if_bytes;
-                if ((new_size & (new_size - 1)) != 0) {
+                if (!is_power_of_2(new_size)) {
                         rnew_size = xfs_iroundup(new_size);
                 }
                 xfs_iext_inline_to_direct(ifp, rnew_size);