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>
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b418aee..f5172e2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -565,7 +565,7 @@
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 @@
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 @@
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 @@
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;