[xfs-masters] [PATCH]is_power_of_2-xfs/xfs_inode.c

[vignesh babu <vignesh.babu@xxxxxxxxx>]

Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2

Signed-off-by: vignesh babu <vignesh.babu@xxxxxxxxx>
--- 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 3ca5d43..8fdd30d 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);

-- 
Vignesh Babu BM 
_____________________________________________________________ 
"Why is it that every time I'm with you, makes me believe in magic?"