diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index b839f5f3385c..1aca402cab9c 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -722,25 +722,23 @@ int get_valid_checkpoint(struct f2fs_sb_info *sbi)
 	return -EINVAL;
 }
 
-static int __add_dirty_inode(struct inode *inode, struct inode_entry *new)
+static void __add_dirty_inode(struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct f2fs_inode_info *fi = F2FS_I(inode);
 
-	if (is_inode_flag_set(F2FS_I(inode), FI_DIRTY_DIR))
-		return -EEXIST;
+	if (is_inode_flag_set(fi, FI_DIRTY_DIR))
+		return;
 
-	set_inode_flag(F2FS_I(inode), FI_DIRTY_DIR);
-	F2FS_I(inode)->dirty_dir = new;
-	list_add_tail(&new->list, &sbi->dir_inode_list);
+	set_inode_flag(fi, FI_DIRTY_DIR);
+	list_add_tail(&fi->dirty_list, &sbi->dir_inode_list);
 	stat_inc_dirty_dir(sbi);
-	return 0;
+	return;
 }
 
 void update_dirty_page(struct inode *inode, struct page *page)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-	struct inode_entry *new;
-	int ret = 0;
 
 	if (!S_ISDIR(inode->i_mode) && !S_ISREG(inode->i_mode) &&
 			!S_ISLNK(inode->i_mode))
@@ -751,17 +749,11 @@ void update_dirty_page(struct inode *inode, struct page *page)
 		goto out;
 	}
 
-	new = f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
-	new->inode = inode;
-	INIT_LIST_HEAD(&new->list);
-
 	spin_lock(&sbi->dir_inode_lock);
-	ret = __add_dirty_inode(inode, new);
+	__add_dirty_inode(inode);
 	inode_inc_dirty_pages(inode);
 	spin_unlock(&sbi->dir_inode_lock);
 
-	if (ret)
-		kmem_cache_free(inode_entry_slab, new);
 out:
 	SetPagePrivate(page);
 	f2fs_trace_pid(page);
@@ -770,25 +762,16 @@ void update_dirty_page(struct inode *inode, struct page *page)
 void add_dirty_dir_inode(struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-	struct inode_entry *new =
-			f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
-	int ret = 0;
-
-	new->inode = inode;
-	INIT_LIST_HEAD(&new->list);
 
 	spin_lock(&sbi->dir_inode_lock);
-	ret = __add_dirty_inode(inode, new);
+	__add_dirty_inode(inode);
 	spin_unlock(&sbi->dir_inode_lock);
-
-	if (ret)
-		kmem_cache_free(inode_entry_slab, new);
 }
 
 void remove_dirty_dir_inode(struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-	struct inode_entry *entry;
+	struct f2fs_inode_info *fi = F2FS_I(inode);
 
 	if (!S_ISDIR(inode->i_mode))
 		return;
@@ -800,17 +783,14 @@ void remove_dirty_dir_inode(struct inode *inode)
 		return;
 	}
 
-	entry = F2FS_I(inode)->dirty_dir;
-	list_del(&entry->list);
-	F2FS_I(inode)->dirty_dir = NULL;
-	clear_inode_flag(F2FS_I(inode), FI_DIRTY_DIR);
+	list_del_init(&fi->dirty_list);
+	clear_inode_flag(fi, FI_DIRTY_DIR);
 	stat_dec_dirty_dir(sbi);
 	spin_unlock(&sbi->dir_inode_lock);
-	kmem_cache_free(inode_entry_slab, entry);
 
 	/* Only from the recovery routine */
-	if (is_inode_flag_set(F2FS_I(inode), FI_DELAY_IPUT)) {
-		clear_inode_flag(F2FS_I(inode), FI_DELAY_IPUT);
+	if (is_inode_flag_set(fi, FI_DELAY_IPUT)) {
+		clear_inode_flag(fi, FI_DELAY_IPUT);
 		iput(inode);
 	}
 }
@@ -818,8 +798,8 @@ void remove_dirty_dir_inode(struct inode *inode)
 void sync_dirty_dir_inodes(struct f2fs_sb_info *sbi)
 {
 	struct list_head *head;
-	struct inode_entry *entry;
 	struct inode *inode;
+	struct f2fs_inode_info *fi;
 retry:
 	if (unlikely(f2fs_cp_error(sbi)))
 		return;
@@ -831,8 +811,8 @@ void sync_dirty_dir_inodes(struct f2fs_sb_info *sbi)
 		spin_unlock(&sbi->dir_inode_lock);
 		return;
 	}
-	entry = list_entry(head->next, struct inode_entry, list);
-	inode = igrab(entry->inode);
+	fi = list_entry(head->next, struct f2fs_inode_info, dirty_list);
+	inode = igrab(&fi->vfs_inode);
 	spin_unlock(&sbi->dir_inode_lock);
 	if (inode) {
 		filemap_fdatawrite(inode->i_mapping);
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 8ce2fe3f65ab..f4a7b9e9416d 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -189,7 +189,6 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
 	si->cache_mem += NM_I(sbi)->dirty_nat_cnt *
 					sizeof(struct nat_entry_set);
 	si->cache_mem += si->inmem_pages * sizeof(struct inmem_pages);
-	si->cache_mem += sbi->n_dirty_dirs * sizeof(struct inode_entry);
 	for (i = 0; i <= UPDATE_INO; i++)
 		si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
 	si->cache_mem += sbi->total_ext_tree * sizeof(struct extent_tree);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ee8bcbf34f44..21048edb72cb 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -158,13 +158,7 @@ struct ino_entry {
 	nid_t ino;		/* inode number */
 };
 
-/*
- * for the list of directory inodes or gc inodes.
- * NOTE: there are two slab users for this structure, if we add/modify/delete
- * fields in structure for one of slab users, it may affect fields or size of
- * other one, in this condition, it's better to split both of slab and related
- * data structure.
- */
+/* for the list of inodes to be GCed */
 struct inode_entry {
 	struct list_head list;	/* list head */
 	struct inode *inode;	/* vfs inode pointer */
@@ -441,8 +435,8 @@ struct f2fs_inode_info {
 	unsigned int clevel;		/* maximum level of given file name */
 	nid_t i_xattr_nid;		/* node id that contains xattrs */
 	unsigned long long xattr_ver;	/* cp version of xattr modification */
-	struct inode_entry *dirty_dir;	/* the pointer of dirty dir */
 
+	struct list_head dirty_list;	/* linked in global dirty list */
 	struct list_head inmem_pages;	/* inmemory pages managed by f2fs */
 	struct mutex inmem_lock;	/* lock for inmemory pages */
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 9ee7144c5367..4031f8ed9d24 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -432,6 +432,7 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
 	fi->i_current_depth = 1;
 	fi->i_advise = 0;
 	init_rwsem(&fi->i_sem);
+	INIT_LIST_HEAD(&fi->dirty_list);
 	INIT_LIST_HEAD(&fi->inmem_pages);
 	mutex_init(&fi->inmem_lock);