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f2fs: use list_for_each_entry{_safe} for simplyfying code

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This patch use list_for_each_entry{_safe} instead of list_for_each{_safe} for
simplfying code.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Chao Yu
2014-03-29 11:33:17 +08:00
committed by Jaegeuk Kim
parent cf0ee0f09b
commit 2d7b822ad9
4 changed files with 24 additions and 41 deletions
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37
fs/f2fs/checkpoint.c
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@@ -308,16 +308,15 @@ void release_orphan_inode(struct f2fs_sb_info *sbi)
void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
{
struct list_head *head, *this;
struct orphan_inode_entry *new = NULL, *orphan = NULL;
struct list_head *head;
struct orphan_inode_entry *new, *orphan;
new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
new->ino = ino;
spin_lock(&sbi->orphan_inode_lock);
head = &sbi->orphan_inode_list;
list_for_each(this, head) {
orphan = list_entry(this, struct orphan_inode_entry, list);
list_for_each_entry(orphan, head, list) {
if (orphan->ino == ino) {
spin_unlock(&sbi->orphan_inode_lock);
kmem_cache_free(orphan_entry_slab, new);
@@ -326,14 +325,10 @@ void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
if (orphan->ino > ino)
break;
orphan = NULL;
}
/* add new_oentry into list which is sorted by inode number */
if (orphan)
list_add(&new->list, this->prev);
else
list_add_tail(&new->list, head);
/* add new orphan entry into list which is sorted by inode number */
list_add_tail(&new->list, &orphan->list);
spin_unlock(&sbi->orphan_inode_lock);
}
@@ -561,14 +556,12 @@ static int __add_dirty_inode(struct inode *inode, struct dir_inode_entry *new)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct list_head *head = &sbi->dir_inode_list;
struct list_head *this;
struct dir_inode_entry *entry;
list_for_each(this, head) {
struct dir_inode_entry *entry;
entry = list_entry(this, struct dir_inode_entry, list);
list_for_each_entry(entry, head, list)
if (unlikely(entry->inode == inode))
return -EEXIST;
}
list_add_tail(&new->list, head);
stat_inc_dirty_dir(sbi);
return 0;
@@ -618,7 +611,8 @@ void add_dirty_dir_inode(struct inode *inode)
void remove_dirty_dir_inode(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
struct list_head *this, *head;
struct list_head *head;
struct dir_inode_entry *entry;
if (!S_ISDIR(inode->i_mode))
return;
@@ -630,9 +624,7 @@ void remove_dirty_dir_inode(struct inode *inode)
}
head = &sbi->dir_inode_list;
list_for_each(this, head) {
struct dir_inode_entry *entry;
entry = list_entry(this, struct dir_inode_entry, list);
list_for_each_entry(entry, head, list) {
if (entry->inode == inode) {
list_del(&entry->list);
stat_dec_dirty_dir(sbi);
@@ -654,15 +646,14 @@ done:
struct inode *check_dirty_dir_inode(struct f2fs_sb_info *sbi, nid_t ino)
{
struct list_head *this, *head;
struct list_head *head;
struct inode *inode = NULL;
struct dir_inode_entry *entry;
spin_lock(&sbi->dir_inode_lock);
head = &sbi->dir_inode_list;
list_for_each(this, head) {
struct dir_inode_entry *entry;
entry = list_entry(this, struct dir_inode_entry, list);
list_for_each_entry(entry, head, list) {
if (entry->inode->i_ino == ino) {
inode = entry->inode;
break;