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f2fs: introduce F2FS_INODE macro to get f2fs_inode

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This patch introduces F2FS_INODE that returns struct f2fs_inode * from the inode
page.
By using this macro, we can remove unnecessary casting codes like below.

   struct f2fs_inode *ri = &F2FS_NODE(inode_page)->i;
-> struct f2fs_inode *ri = F2FS_INODE(inode_page);

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim
2013-12-26 16:30:41 +09:00
parent d96b143151
commit 58bfaf44df
5 changed files with 28 additions and 29 deletions
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30
fs/f2fs/node.c
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@@ -684,7 +684,7 @@ int truncate_inode_blocks(struct inode *inode, pgoff_t from)
int err = 0, cont = 1;
int level, offset[4], noffset[4];
unsigned int nofs = 0;
struct f2fs_node *rn;
struct f2fs_inode *ri;
struct dnode_of_data dn;
struct page *page;
@@ -701,7 +701,7 @@ restart:
set_new_dnode(&dn, inode, page, NULL, 0);
unlock_page(page);
rn = F2FS_NODE(page);
ri = F2FS_INODE(page);
switch (level) {
case 0:
case 1:
@@ -711,7 +711,7 @@ restart:
nofs = noffset[1];
if (!offset[level - 1])
goto skip_partial;
err = truncate_partial_nodes(&dn, &rn->i, offset, level);
err = truncate_partial_nodes(&dn, ri, offset, level);
if (err < 0 && err != -ENOENT)
goto fail;
nofs += 1 + NIDS_PER_BLOCK;
@@ -720,7 +720,7 @@ restart:
nofs = 5 + 2 * NIDS_PER_BLOCK;
if (!offset[level - 1])
goto skip_partial;
err = truncate_partial_nodes(&dn, &rn->i, offset, level);
err = truncate_partial_nodes(&dn, ri, offset, level);
if (err < 0 && err != -ENOENT)
goto fail;
break;
@@ -730,7 +730,7 @@ restart:
skip_partial:
while (cont) {
dn.nid = le32_to_cpu(rn->i.i_nid[offset[0] - NODE_DIR1_BLOCK]);
dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]);
switch (offset[0]) {
case NODE_DIR1_BLOCK:
case NODE_DIR2_BLOCK:
@@ -753,14 +753,14 @@ skip_partial:
if (err < 0 && err != -ENOENT)
goto fail;
if (offset[1] == 0 &&
rn->i.i_nid[offset[0] - NODE_DIR1_BLOCK]) {
ri->i_nid[offset[0] - NODE_DIR1_BLOCK]) {
lock_page(page);
if (unlikely(page->mapping != node_mapping)) {
f2fs_put_page(page, 1);
goto restart;
}
wait_on_page_writeback(page);
rn->i.i_nid[offset[0] - NODE_DIR1_BLOCK] = 0;
ri->i_nid[offset[0] - NODE_DIR1_BLOCK] = 0;
set_page_dirty(page);
unlock_page(page);
}
@@ -1533,7 +1533,7 @@ void recover_node_page(struct f2fs_sb_info *sbi, struct page *page,
int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
{
struct address_space *mapping = sbi->node_inode->i_mapping;
struct f2fs_node *src, *dst;
struct f2fs_inode *src, *dst;
nid_t ino = ino_of_node(page);
struct node_info old_ni, new_ni;
struct page *ipage;
@@ -1549,14 +1549,14 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
SetPageUptodate(ipage);
fill_node_footer(ipage, ino, ino, 0, true);
src = F2FS_NODE(page);
dst = F2FS_NODE(ipage);
src = F2FS_INODE(page);
dst = F2FS_INODE(ipage);
memcpy(dst, src, (unsigned long)&src->i.i_ext - (unsigned long)&src->i);
dst->i.i_size = 0;
dst->i.i_blocks = cpu_to_le64(1);
dst->i.i_links = cpu_to_le32(1);
dst->i.i_xattr_nid = 0;
memcpy(dst, src, (unsigned long)&src->i_ext - (unsigned long)src);
dst->i_size = 0;
dst->i_blocks = cpu_to_le64(1);
dst->i_links = cpu_to_le32(1);
dst->i_xattr_nid = 0;
new_ni = old_ni;
new_ni.ino = ino;