[PATCH]is_power_of_2-nfs/internal.h

[vignesh babu <vignesh.babu@wipro.com>]

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

Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
--- 
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index ad2b40d..5dca432 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -3,6 +3,7 @@
  */
 
 #include <linux/mount.h>
+#include <linux/log2.h>
 
 struct nfs_string;
 struct nfs_mount_data;
@@ -167,7 +168,7 @@ static inline
 unsigned long nfs_block_bits(unsigned long bsize, unsigned char *nrbitsp)
 {
 	/* make sure blocksize is a power of two */
-	if ((bsize & (bsize - 1)) || nrbitsp) {
+	if (is_power_of_2(bsize) || nrbitsp) {
 		unsigned char	nrbits;
 
 		for (nrbits = 31; nrbits && !(bsize & (1 << nrbits)); nrbits--)

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


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