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f2fs: introduce F2FS_INODE macro to get f2fs_inode 

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>
hifive-unleashed-5.1
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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8
fs/f2fs/dir.c
View File

@ -261,12 +261,12 @@ void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
static void init_dent_inode(const struct qstr *name, struct page *ipage)
{
struct f2fs_node *rn;
struct f2fs_inode *ri;
/* copy name info. to this inode page */
rn = F2FS_NODE(ipage);
rn->i.i_namelen = cpu_to_le32(name->len);
memcpy(rn->i.i_name, name->name, name->len);
ri = F2FS_INODE(ipage);
ri->i_namelen = cpu_to_le32(name->len);
memcpy(ri->i_name, name->name, name->len);
set_page_dirty(ipage);
}

5
fs/f2fs/f2fs.h
View File

@ -498,6 +498,11 @@ static inline struct f2fs_node *F2FS_NODE(struct page *page)
return (struct f2fs_node *)page_address(page);
}
static inline struct f2fs_inode *F2FS_INODE(struct page *page)
{
return &((struct f2fs_node *)page_address(page))->i;
}
static inline struct f2fs_nm_info *NM_I(struct f2fs_sb_info *sbi)
{
return (struct f2fs_nm_info *)(sbi->nm_info);

8
fs/f2fs/inode.c
View File

@ -67,7 +67,6 @@ static int do_read_inode(struct inode *inode)
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct f2fs_inode_info *fi = F2FS_I(inode);
struct page *node_page;
struct f2fs_node *rn;
struct f2fs_inode *ri;
/* Check if ino is within scope */
@ -81,8 +80,7 @@ static int do_read_inode(struct inode *inode)
if (IS_ERR(node_page))
return PTR_ERR(node_page);
rn = F2FS_NODE(node_page);
ri = &(rn->i);
ri = F2FS_INODE(node_page);
inode->i_mode = le16_to_cpu(ri->i_mode);
i_uid_write(inode, le32_to_cpu(ri->i_uid));
@ -175,13 +173,11 @@ bad_inode:
void update_inode(struct inode *inode, struct page *node_page)
{
struct f2fs_node *rn;
struct f2fs_inode *ri;
f2fs_wait_on_page_writeback(node_page, NODE, false);
rn = F2FS_NODE(node_page);
ri = &(rn->i);
ri = F2FS_INODE(node_page);
ri->i_mode = cpu_to_le16(inode->i_mode);
ri->i_advise = F2FS_I(inode)->i_advise;

30
fs/f2fs/node.c
View File

@ -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;

6
fs/f2fs/recovery.c
View File

@ -40,8 +40,7 @@ static struct fsync_inode_entry *get_fsync_inode(struct list_head *head,
static int recover_dentry(struct page *ipage, struct inode *inode)
{
struct f2fs_node *raw_node = F2FS_NODE(ipage);
struct f2fs_inode *raw_inode = &(raw_node->i);
struct f2fs_inode *raw_inode = F2FS_INODE(ipage);
nid_t pino = le32_to_cpu(raw_inode->i_pino);
struct f2fs_dir_entry *de;
struct qstr name;
@ -105,8 +104,7 @@ out:
static int recover_inode(struct inode *inode, struct page *node_page)
{
struct f2fs_node *raw_node = F2FS_NODE(node_page);
struct f2fs_inode *raw_inode = &(raw_node->i);
struct f2fs_inode *raw_inode = F2FS_INODE(node_page);
if (!IS_INODE(node_page))
return 0;