f2fs: introduce help function F2FS_NODE()

Introduce help function F2FS_NODE() to simplify the conversion of node_page to
f2fs_node.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b418aee09573..f5172e271d46 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -565,7 +565,7 @@ static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs,
                 return PTR_ERR(page);
         }
 
-        rn = (struct f2fs_node *)page_address(page);
+        rn = F2FS_NODE(page);
         if (depth < 3) {
                 for (i = ofs; i < NIDS_PER_BLOCK; i++, freed++) {
                         child_nid = le32_to_cpu(rn->in.nid[i]);
@@ -698,7 +698,7 @@ restart:
         set_new_dnode(&dn, inode, page, NULL, 0);
         unlock_page(page);
 
-        rn = page_address(page);
+        rn = F2FS_NODE(page);
         switch (level) {
         case 0:
         case 1:
@@ -1484,8 +1484,8 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
         SetPageUptodate(ipage);
         fill_node_footer(ipage, ino, ino, 0, true);
 
-        src = (struct f2fs_node *)page_address(page);
-        dst = (struct f2fs_node *)page_address(ipage);
+        src = F2FS_NODE(page);
+        dst = F2FS_NODE(ipage);
 
         memcpy(dst, src, (unsigned long)&src->i.i_ext - (unsigned long)&src->i);
         dst->i.i_size = 0;
@@ -1535,7 +1535,7 @@ int restore_node_summary(struct f2fs_sb_info *sbi,
                         goto out;
 
                 lock_page(page);
-                rn = (struct f2fs_node *)page_address(page);
+                rn = F2FS_NODE(page);
                 sum_entry->nid = rn->footer.nid;
                 sum_entry->version = 0;
                 sum_entry->ofs_in_node = 0;