[PATCH] isofs: use i_blocksize()

[Geliang Tang]

Since i_blocksize() helper has been defined in fs.h, use it instead
of open-coding.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
---
 fs/isofs/rock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 0ec1373..038728b 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -84,7 +84,7 @@ static void init_rock_state(struct rock_state *rs, struct inode *inode)
 static int rock_continue(struct rock_state *rs)
 {
 	int ret = 1;
-	int blocksize = 1 << rs->inode->i_blkbits;
+	int blocksize = i_blocksize(rs->inode);
 	const int min_de_size = offsetof(struct rock_ridge, u);
 
 	kfree(rs->buffer);
-- 
2.9.3