f2fs: use existing macro to clean up some codes

This patch use existing macro F2FS_INODE/NEXT_FREE_BLKADDR to clean up some
codes.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

fs/f2fs/f2fs.h

@@ -1000,8 +1000,7 @@ static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi)
 
 static inline void *inline_xattr_addr(struct page *page)
 {
-	struct f2fs_inode *ri;
-	ri = (struct f2fs_inode *)page_address(page);
+	struct f2fs_inode *ri = F2FS_INODE(page);
 	return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
 					F2FS_INLINE_XATTR_ADDRS]);
 }
@@ -1021,8 +1020,7 @@ static inline int f2fs_has_inline_data(struct inode *inode)
 
 static inline void *inline_data_addr(struct page *page)
 {
-	struct f2fs_inode *ri;
-	ri = (struct f2fs_inode *)page_address(page);
+	struct f2fs_inode *ri = F2FS_INODE(page);
 	return (void *)&(ri->i_addr[1]);
 }
 

fs/f2fs/recovery.c

@@ -136,7 +136,7 @@ static int find_fsync_dnodes(struct f2fs_sb_info *sbi, struct list_head *head)
 
 	/* get node pages in the current segment */
 	curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
-	blkaddr = START_BLOCK(sbi, curseg->segno) + curseg->next_blkoff;
+	blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
 
 	/* read node page */
 	page = alloc_page(GFP_F2FS_ZERO);