diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 163d38c0ba64..9c7ddb4d331f 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -514,3 +514,17 @@ Date:		July 2021
 Contact:	"Daeho Jeong" <daehojeong@google.com>
 Description:	You can control for which gc mode the "gc_reclaimed_segments" node shows.
 		Refer to the description of the modes in "gc_reclaimed_segments".
+
+What:		/sys/fs/f2fs/<disk>/hot_data_age_threshold
+Date:		November 2022
+Contact:	"Ping Xiong" <xiongping1@xiaomi.com>
+Description:	When DATA SEPARATION is on, it controls the age threshold to indicate
+		the data blocks as hot. By default it was initialized as 262144 blocks
+		(equals to 1GB).
+
+What:		/sys/fs/f2fs/<disk>/warm_data_age_threshold
+Date:		November 2022
+Contact:	"Ping Xiong" <xiongping1@xiaomi.com>
+Description:	When DATA SEPARATION is on, it controls the age threshold to indicate
+		the data blocks as warm. By default it was initialized as 2621440 blocks
+		(equals to 10GB).
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index b91e5a8444d5..f122a2b7c7d1 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -300,6 +300,10 @@ inlinecrypt		 When possible, encrypt/decrypt the contents of encrypted
 			 Documentation/block/inline-encryption.rst.
 atgc			 Enable age-threshold garbage collection, it provides high
 			 effectiveness and efficiency on background GC.
+age_extent_cache	 Enable an age extent cache based on rb-tree. It records
+			 data block update frequency of the extent per inode, in
+			 order to provide better temperature hints for data block
+			 allocation.
 ======================== ============================================================
 
 Debugfs Entries
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 75564077f2e9..f33e64acaf2b 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -88,6 +88,9 @@ static void update_general_status(struct f2fs_sb_info *sbi)
 	si->hit_largest = atomic64_read(&sbi->read_hit_largest);
 	si->hit_total[EX_READ] += si->hit_largest;
 
+	/* block age extent_cache only */
+	si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks);
+
 	/* validation check of the segment numbers */
 	si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
 	si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
@@ -497,6 +500,22 @@ static int stat_show(struct seq_file *s, void *v)
 		seq_printf(s, "  - Inner Struct Count: tree: %d(%d), node: %d\n",
 				si->ext_tree[EX_READ], si->zombie_tree[EX_READ],
 				si->ext_node[EX_READ]);
+		seq_puts(s, "\nExtent Cache (Block Age):\n");
+		seq_printf(s, "  - Allocated Data Blocks: %llu\n",
+				si->allocated_data_blocks);
+		seq_printf(s, "  - Hit Count: L1:%llu L2:%llu\n",
+				si->hit_cached[EX_BLOCK_AGE],
+				si->hit_rbtree[EX_BLOCK_AGE]);
+		seq_printf(s, "  - Hit Ratio: %llu%% (%llu / %llu)\n",
+				!si->total_ext[EX_BLOCK_AGE] ? 0 :
+				div64_u64(si->hit_total[EX_BLOCK_AGE] * 100,
+				si->total_ext[EX_BLOCK_AGE]),
+				si->hit_total[EX_BLOCK_AGE],
+				si->total_ext[EX_BLOCK_AGE]);
+		seq_printf(s, "  - Inner Struct Count: tree: %d(%d), node: %d\n",
+				si->ext_tree[EX_BLOCK_AGE],
+				si->zombie_tree[EX_BLOCK_AGE],
+				si->ext_node[EX_BLOCK_AGE]);
 		seq_puts(s, "\nBalancing F2FS Async:\n");
 		seq_printf(s, "  - DIO (R: %4d, W: %4d)\n",
 			   si->nr_dio_read, si->nr_dio_write);
@@ -566,6 +585,8 @@ static int stat_show(struct seq_file *s, void *v)
 				si->cache_mem >> 10);
 		seq_printf(s, "  - read extent cache: %llu KB\n",
 				si->ext_mem[EX_READ] >> 10);
+		seq_printf(s, "  - block age extent cache: %llu KB\n",
+				si->ext_mem[EX_BLOCK_AGE] >> 10);
 		seq_printf(s, "  - paged : %llu KB\n",
 				si->page_mem >> 10);
 	}
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index 73616ba7ea73..9a6db0b1b0eb 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -6,6 +6,10 @@
  * Copyright (c) 2015 Samsung Electronics
  * Authors: Jaegeuk Kim <jaegeuk@kernel.org>
  *          Chao Yu <chao2.yu@samsung.com>
+ *
+ * block_age-based extent cache added by:
+ * Copyright (c) 2022 xiaomi Co., Ltd.
+ *             http://www.xiaomi.com/
  */
 
 #include <linux/fs.h>
@@ -18,6 +22,7 @@
 static void __set_extent_info(struct extent_info *ei,
 				unsigned int fofs, unsigned int len,
 				block_t blk, bool keep_clen,
+				unsigned long age, unsigned long last_blocks,
 				enum extent_type type)
 {
 	ei->fofs = fofs;
@@ -30,6 +35,9 @@ static void __set_extent_info(struct extent_info *ei,
 #ifdef CONFIG_F2FS_FS_COMPRESSION
 		ei->c_len = 0;
 #endif
+	} else if (type == EX_BLOCK_AGE) {
+		ei->age = age;
+		ei->last_blocks = last_blocks;
 	}
 }
 
@@ -47,10 +55,27 @@ static bool __may_read_extent_tree(struct inode *inode)
 	return S_ISREG(inode->i_mode);
 }
 
+static bool __may_age_extent_tree(struct inode *inode)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+	if (!test_opt(sbi, AGE_EXTENT_CACHE))
+		return false;
+	/* don't cache block age info for cold file */
+	if (is_inode_flag_set(inode, FI_COMPRESSED_FILE))
+		return false;
+	if (file_is_cold(inode))
+		return false;
+
+	return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
+}
+
 static bool __init_may_extent_tree(struct inode *inode, enum extent_type type)
 {
 	if (type == EX_READ)
 		return __may_read_extent_tree(inode);
+	else if (type == EX_BLOCK_AGE)
+		return __may_age_extent_tree(inode);
 	return false;
 }
 
@@ -90,6 +115,11 @@ static bool __is_extent_mergeable(struct extent_info *back,
 #endif
 		return (back->fofs + back->len == front->fofs &&
 				back->blk + back->len == front->blk);
+	} else if (type == EX_BLOCK_AGE) {
+		return (back->fofs + back->len == front->fofs &&
+			abs(back->age - front->age) <= SAME_AGE_REGION &&
+			abs(back->last_blocks - front->last_blocks) <=
+							SAME_AGE_REGION);
 	}
 	return false;
 }
@@ -488,11 +518,22 @@ out:
 		set_inode_flag(inode, FI_NO_EXTENT);
 }
 
+void f2fs_init_age_extent_tree(struct inode *inode)
+{
+	if (!__init_may_extent_tree(inode, EX_BLOCK_AGE))
+		return;
+	__grab_extent_tree(inode, EX_BLOCK_AGE);
+}
+
 void f2fs_init_extent_tree(struct inode *inode)
 {
 	/* initialize read cache */
 	if (__init_may_extent_tree(inode, EX_READ))
 		__grab_extent_tree(inode, EX_READ);
+
+	/* initialize block age cache */
+	if (__init_may_extent_tree(inode, EX_BLOCK_AGE))
+		__grab_extent_tree(inode, EX_BLOCK_AGE);
 }
 
 static bool __lookup_extent_tree(struct inode *inode, pgoff_t pgofs,
@@ -543,6 +584,8 @@ out:
 
 	if (type == EX_READ)
 		trace_f2fs_lookup_read_extent_tree_end(inode, pgofs, ei);
+	else if (type == EX_BLOCK_AGE)
+		trace_f2fs_lookup_age_extent_tree_end(inode, pgofs, ei);
 	return ret;
 }
 
@@ -641,6 +684,10 @@ static void __update_extent_tree_range(struct inode *inode,
 	if (type == EX_READ)
 		trace_f2fs_update_read_extent_tree_range(inode, fofs, len,
 						tei->blk, 0);
+	else if (type == EX_BLOCK_AGE)
+		trace_f2fs_update_age_extent_tree_range(inode, fofs, len,
+						tei->age, tei->last_blocks);
+
 	write_lock(&et->lock);
 
 	if (type == EX_READ) {
@@ -693,6 +740,7 @@ static void __update_extent_tree_range(struct inode *inode,
 				__set_extent_info(&ei,
 					end, org_end - end,
 					end - dei.fofs + dei.blk, false,
+					dei.age, dei.last_blocks,
 					type);
 				en1 = __insert_extent_tree(sbi, et, &ei,
 							NULL, NULL, true);
@@ -701,6 +749,7 @@ static void __update_extent_tree_range(struct inode *inode,
 				__set_extent_info(&en->ei,
 					end, en->ei.len - (end - dei.fofs),
 					en->ei.blk + (end - dei.fofs), true,
+					dei.age, dei.last_blocks,
 					type);
 				next_en = en;
 			}
@@ -731,11 +780,15 @@ static void __update_extent_tree_range(struct inode *inode,
 		en = next_en;
 	}
 
+	if (type == EX_BLOCK_AGE)
+		goto update_age_extent_cache;
+
 	/* 3. update extent in read extent cache */
 	BUG_ON(type != EX_READ);
 
 	if (tei->blk) {
-		__set_extent_info(&ei, fofs, len, tei->blk, false, EX_READ);
+		__set_extent_info(&ei, fofs, len, tei->blk, false,
+				  0, 0, EX_READ);
 		if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))
 			__insert_extent_tree(sbi, et, &ei,
 					insert_p, insert_parent, leftmost);
@@ -757,7 +810,17 @@ static void __update_extent_tree_range(struct inode *inode,
 		et->largest_updated = false;
 		updated = true;
 	}
+	goto out_read_extent_cache;
+update_age_extent_cache:
+	if (!tei->last_blocks)
+		goto out_read_extent_cache;
 
+	__set_extent_info(&ei, fofs, len, 0, false,
+			tei->age, tei->last_blocks, EX_BLOCK_AGE);
+	if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))
+		__insert_extent_tree(sbi, et, &ei,
+					insert_p, insert_parent, leftmost);
+out_read_extent_cache:
 	write_unlock(&et->lock);
 
 	if (updated)
@@ -795,7 +858,7 @@ void f2fs_update_read_extent_tree_range_compressed(struct inode *inode,
 	if (en)
 		goto unlock_out;
 
-	__set_extent_info(&ei, fofs, llen, blkaddr, true, EX_READ);
+	__set_extent_info(&ei, fofs, llen, blkaddr, true, 0, 0, EX_READ);
 	ei.c_len = c_len;
 
 	if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))
@@ -806,6 +869,72 @@ unlock_out:
 }
 #endif
 
+static unsigned long long __calculate_block_age(unsigned long long new,
+						unsigned long long old)
+{
+	unsigned long long diff;
+
+	diff = (new >= old) ? new - (new - old) : new + (old - new);
+
+	return div_u64(diff * LAST_AGE_WEIGHT, 100);
+}
+
+/* This returns a new age and allocated blocks in ei */
+static int __get_new_block_age(struct inode *inode, struct extent_info *ei)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	loff_t f_size = i_size_read(inode);
+	unsigned long long cur_blocks =
+				atomic64_read(&sbi->allocated_data_blocks);
+
+	/*
+	 * When I/O is not aligned to a PAGE_SIZE, update will happen to the last
+	 * file block even in seq write. So don't record age for newly last file
+	 * block here.
+	 */
+	if ((f_size >> PAGE_SHIFT) == ei->fofs && f_size & (PAGE_SIZE - 1) &&
+			ei->blk == NEW_ADDR)
+		return -EINVAL;
+
+	if (__lookup_extent_tree(inode, ei->fofs, ei, EX_BLOCK_AGE)) {
+		unsigned long long cur_age;
+
+		if (cur_blocks >= ei->last_blocks)
+			cur_age = cur_blocks - ei->last_blocks;
+		else
+			/* allocated_data_blocks overflow */
+			cur_age = ULLONG_MAX - ei->last_blocks + cur_blocks;
+
+		if (ei->age)
+			ei->age = __calculate_block_age(cur_age, ei->age);
+		else
+			ei->age = cur_age;
+		ei->last_blocks = cur_blocks;
+		WARN_ON(ei->age > cur_blocks);
+		return 0;
+	}
+
+	f2fs_bug_on(sbi, ei->blk == NULL_ADDR);
+
+	/* the data block was allocated for the first time */
+	if (ei->blk == NEW_ADDR)
+		goto out;
+
+	if (__is_valid_data_blkaddr(ei->blk) &&
+			!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC_ENHANCE)) {
+		f2fs_bug_on(sbi, 1);
+		return -EINVAL;
+	}
+out:
+	/*
+	 * init block age with zero, this can happen when the block age extent
+	 * was reclaimed due to memory constraint or system reboot
+	 */
+	ei->age = 0;
+	ei->last_blocks = cur_blocks;
+	return 0;
+}
+
 static void __update_extent_cache(struct dnode_of_data *dn, enum extent_type type)
 {
 	struct extent_info ei;
@@ -822,6 +951,10 @@ static void __update_extent_cache(struct dnode_of_data *dn, enum extent_type typ
 			ei.blk = NULL_ADDR;
 		else
 			ei.blk = dn->data_blkaddr;
+	} else if (type == EX_BLOCK_AGE) {
+		ei.blk = dn->data_blkaddr;
+		if (__get_new_block_age(dn->inode, &ei))
+			return;
 	}
 	__update_extent_tree_range(dn->inode, &ei, type);
 }
@@ -939,6 +1072,43 @@ unsigned int f2fs_shrink_read_extent_tree(struct f2fs_sb_info *sbi, int nr_shrin
 	return __shrink_extent_tree(sbi, nr_shrink, EX_READ);
 }
 
+/* block age extent cache operations */
+bool f2fs_lookup_age_extent_cache(struct inode *inode, pgoff_t pgofs,
+				struct extent_info *ei)
+{
+	if (!__may_extent_tree(inode, EX_BLOCK_AGE))
+		return false;
+
+	return __lookup_extent_tree(inode, pgofs, ei, EX_BLOCK_AGE);
+}
+
+void f2fs_update_age_extent_cache(struct dnode_of_data *dn)
+{
+	return __update_extent_cache(dn, EX_BLOCK_AGE);
+}
+
+void f2fs_update_age_extent_cache_range(struct dnode_of_data *dn,
+				pgoff_t fofs, unsigned int len)
+{
+	struct extent_info ei = {
+		.fofs = fofs,
+		.len = len,
+	};
+
+	if (!__may_extent_tree(dn->inode, EX_BLOCK_AGE))
+		return;
+
+	__update_extent_tree_range(dn->inode, &ei, EX_BLOCK_AGE);
+}
+
+unsigned int f2fs_shrink_age_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink)
+{
+	if (!test_opt(sbi, AGE_EXTENT_CACHE))
+		return 0;
+
+	return __shrink_extent_tree(sbi, nr_shrink, EX_BLOCK_AGE);
+}
+
 static unsigned int __destroy_extent_node(struct inode *inode,
 					enum extent_type type)
 {
@@ -959,6 +1129,7 @@ static unsigned int __destroy_extent_node(struct inode *inode,
 void f2fs_destroy_extent_node(struct inode *inode)
 {
 	__destroy_extent_node(inode, EX_READ);
+	__destroy_extent_node(inode, EX_BLOCK_AGE);
 }
 
 static void __drop_extent_tree(struct inode *inode, enum extent_type type)
@@ -987,6 +1158,7 @@ static void __drop_extent_tree(struct inode *inode, enum extent_type type)
 void f2fs_drop_extent_tree(struct inode *inode)
 {
 	__drop_extent_tree(inode, EX_READ);
+	__drop_extent_tree(inode, EX_BLOCK_AGE);
 }
 
 static void __destroy_extent_tree(struct inode *inode, enum extent_type type)
@@ -1027,6 +1199,7 @@ static void __destroy_extent_tree(struct inode *inode, enum extent_type type)
 void f2fs_destroy_extent_tree(struct inode *inode)
 {
 	__destroy_extent_tree(inode, EX_READ);
+	__destroy_extent_tree(inode, EX_BLOCK_AGE);
 }
 
 static void __init_extent_tree_info(struct extent_tree_info *eti)
@@ -1044,6 +1217,12 @@ static void __init_extent_tree_info(struct extent_tree_info *eti)
 void f2fs_init_extent_cache_info(struct f2fs_sb_info *sbi)
 {
 	__init_extent_tree_info(&sbi->extent_tree[EX_READ]);
+	__init_extent_tree_info(&sbi->extent_tree[EX_BLOCK_AGE]);
+
+	/* initialize for block age extents */
+	atomic64_set(&sbi->allocated_data_blocks, 0);
+	sbi->hot_data_age_threshold = DEF_HOT_DATA_AGE_THRESHOLD;
+	sbi->warm_data_age_threshold = DEF_WARM_DATA_AGE_THRESHOLD;
 }
 
 int __init f2fs_create_extent_cache(void)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 3dc413423be1..c2075b87ec23 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -99,6 +99,7 @@ extern const char *f2fs_fault_name[FAULT_MAX];
 #define F2FS_MOUNT_MERGE_CHECKPOINT	0x10000000
 #define	F2FS_MOUNT_GC_MERGE		0x20000000
 #define F2FS_MOUNT_COMPRESS_CACHE	0x40000000
+#define F2FS_MOUNT_AGE_EXTENT_CACHE	0x80000000
 
 #define F2FS_OPTION(sbi)	((sbi)->mount_opt)
 #define clear_opt(sbi, option)	(F2FS_OPTION(sbi).opt &= ~F2FS_MOUNT_##option)
@@ -570,9 +571,22 @@ enum {
 /* number of extent info in extent cache we try to shrink */
 #define READ_EXTENT_CACHE_SHRINK_NUMBER	128
 
+/* number of age extent info in extent cache we try to shrink */
+#define AGE_EXTENT_CACHE_SHRINK_NUMBER	128
+#define LAST_AGE_WEIGHT			30
+#define SAME_AGE_REGION			1024
+
+/*
+ * Define data block with age less than 1GB as hot data
+ * define data block with age less than 10GB but more than 1GB as warm data
+ */
+#define DEF_HOT_DATA_AGE_THRESHOLD	262144
+#define DEF_WARM_DATA_AGE_THRESHOLD	2621440
+
 /* extent cache type */
 enum extent_type {
 	EX_READ,
+	EX_BLOCK_AGE,
 	NR_EXTENT_CACHES,
 };
 
@@ -600,6 +614,13 @@ struct extent_info {
 			unsigned int c_len;
 #endif
 		};
+		/* block age extent_cache */
+		struct {
+			/* block age of the extent */
+			unsigned long long age;
+			/* last total blocks allocated */
+			unsigned long long last_blocks;
+		};
 	};
 };
 
@@ -1589,6 +1610,11 @@ struct f2fs_sb_info {
 
 	/* for extent tree cache */
 	struct extent_tree_info extent_tree[NR_EXTENT_CACHES];
+	atomic64_t allocated_data_blocks;	/* for block age extent_cache */
+
+	/* The threshold used for hot and warm data seperation*/
+	unsigned int hot_data_age_threshold;
+	unsigned int warm_data_age_threshold;
 
 	/* basic filesystem units */
 	unsigned int log_sectors_per_block;	/* log2 sectors per block */
@@ -3770,6 +3796,8 @@ struct f2fs_stat_info {
 	unsigned long long ext_mem[NR_EXTENT_CACHES];
 	/* for read extent cache */
 	unsigned long long hit_largest;
+	/* for block age extent cache */
+	unsigned long long allocated_data_blocks;
 	int ndirty_node, ndirty_dent, ndirty_meta, ndirty_imeta;
 	int ndirty_data, ndirty_qdata;
 	int inmem_pages;
@@ -4085,6 +4113,16 @@ void f2fs_update_read_extent_cache_range(struct dnode_of_data *dn,
 unsigned int f2fs_shrink_read_extent_tree(struct f2fs_sb_info *sbi,
 			int nr_shrink);
 
+/* block age extent cache ops */
+void f2fs_init_age_extent_tree(struct inode *inode);
+bool f2fs_lookup_age_extent_cache(struct inode *inode, pgoff_t pgofs,
+			struct extent_info *ei);
+void f2fs_update_age_extent_cache(struct dnode_of_data *dn);
+void f2fs_update_age_extent_cache_range(struct dnode_of_data *dn,
+			pgoff_t fofs, unsigned int len);
+unsigned int f2fs_shrink_age_extent_tree(struct f2fs_sb_info *sbi,
+			int nr_shrink);
+
 /*
  * sysfs.c
  */
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 18da58068820..d6ded768ac09 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -608,6 +608,7 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
 		fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
 							dn->inode) + ofs;
 		f2fs_update_read_extent_cache_range(dn, fofs, 0, len);
+		f2fs_update_age_extent_cache_range(dn, fofs, nr_free);
 		dec_valid_block_count(sbi, dn->inode, nr_free);
 	}
 	dn->ofs_in_node = ofs;
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 935bcb160602..5bf4f1cccd71 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -470,6 +470,7 @@ static int do_read_inode(struct inode *inode)
 
 	/* Need all the flag bits */
 	f2fs_init_read_extent_tree(inode, node_page);
+	f2fs_init_age_extent_tree(inode);
 
 	f2fs_put_page(node_page, 1);
 
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 4e5cbd856df7..230c63c99b55 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -58,7 +58,7 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
 	avail_ram = val.totalram - val.totalhigh;
 
 	/*
-	 * give 25%, 25%, 50%, 50%, 50% memory for each components respectively
+	 * give 25%, 25%, 50%, 50%, 25%, 25% memory for each components respectively
 	 */
 	if (type == FREE_NIDS) {
 		mem_size = (nm_i->nid_cnt[FREE_NID] *
@@ -83,14 +83,16 @@ bool f2fs_available_free_memory(struct f2fs_sb_info *sbi, int type)
 						sizeof(struct ino_entry);
 		mem_size >>= PAGE_SHIFT;
 		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1);
-	} else if (type == READ_EXTENT_CACHE) {
-		struct extent_tree_info *eti = &sbi->extent_tree[EX_READ];
+	} else if (type == READ_EXTENT_CACHE || type == AGE_EXTENT_CACHE) {
+		enum extent_type etype = type == READ_EXTENT_CACHE ?
+						EX_READ : EX_BLOCK_AGE;
+		struct extent_tree_info *eti = &sbi->extent_tree[etype];
 
 		mem_size = (atomic_read(&eti->total_ext_tree) *
 				sizeof(struct extent_tree) +
 				atomic_read(&eti->total_ext_node) *
 				sizeof(struct extent_node)) >> PAGE_SHIFT;
-		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 1);
+		res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2);
 	} else if (type == INMEM_PAGES) {
 		/* it allows 20% / total_ram for inmemory pages */
 		mem_size = get_pages(sbi, F2FS_INMEM_PAGES);
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index 2c152e677a06..3de7891c8e79 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -149,6 +149,7 @@ enum mem_type {
 	DIRTY_DENTS,	/* indicates dirty dentry pages */
 	INO_ENTRIES,	/* indicates inode entries */
 	READ_EXTENT_CACHE,	/* indicates read extent cache */
+	AGE_EXTENT_CACHE,	/* indicates age extent cache */
 	INMEM_PAGES,	/* indicates inmemory pages */
 	DISCARD_CACHE,	/* indicates memory of cached discard cmds */
 	COMPRESS_PAGE,	/* indicates memory of cached compressed pages */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 512781ad3e61..63245ab3a27c 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -540,6 +540,11 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi, bool from_bg)
 		f2fs_shrink_read_extent_tree(sbi,
 				READ_EXTENT_CACHE_SHRINK_NUMBER);
 
+	/* try to shrink age extent cache when there is no enough memory */
+	if (!f2fs_available_free_memory(sbi, AGE_EXTENT_CACHE))
+		f2fs_shrink_age_extent_tree(sbi,
+				AGE_EXTENT_CACHE_SHRINK_NUMBER);
+
 	/* check the # of cached NAT entries */
 	if (!f2fs_available_free_memory(sbi, NAT_ENTRIES))
 		f2fs_try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK);
@@ -3293,10 +3298,28 @@ static int __get_segment_type_4(struct f2fs_io_info *fio)
 	}
 }
 
+static int __get_age_segment_type(struct inode *inode, pgoff_t pgofs)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct extent_info ei;
+
+	if (f2fs_lookup_age_extent_cache(inode, pgofs, &ei)) {
+		if (!ei.age)
+			return NO_CHECK_TYPE;
+		if (ei.age <= sbi->hot_data_age_threshold)
+			return CURSEG_HOT_DATA;
+		if (ei.age <= sbi->warm_data_age_threshold)
+			return CURSEG_WARM_DATA;
+		return CURSEG_COLD_DATA;
+	}
+	return NO_CHECK_TYPE;
+}
+
 static int __get_segment_type_6(struct f2fs_io_info *fio)
 {
 	if (fio->type == DATA) {
 		struct inode *inode = fio->page->mapping->host;
+		int type;
 
 		if (is_inode_flag_set(inode, FI_ALIGNED_WRITE))
 			return CURSEG_COLD_DATA_PINNED;
@@ -3311,6 +3334,11 @@ static int __get_segment_type_6(struct f2fs_io_info *fio)
 		}
 		if (file_is_cold(inode) || f2fs_need_compress_data(inode))
 			return CURSEG_COLD_DATA;
+
+		type = __get_age_segment_type(inode, fio->page->index);
+		if (type != NO_CHECK_TYPE)
+			return type;
+
 		if (file_is_hot(inode) ||
 				is_inode_flag_set(inode, FI_HOT_DATA) ||
 				f2fs_is_atomic_file(inode) ||
@@ -3422,6 +3450,9 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr));
 	locate_dirty_segment(sbi, GET_SEGNO(sbi, *new_blkaddr));
 
+	if (IS_DATASEG(type))
+		atomic64_inc(&sbi->allocated_data_blocks);
+
 	up_write(&sit_i->sentry_lock);
 
 	if (page && IS_NODESEG(type)) {
@@ -3543,6 +3574,8 @@ void f2fs_outplace_write_data(struct dnode_of_data *dn,
 	struct f2fs_summary sum;
 
 	f2fs_bug_on(sbi, dn->data_blkaddr == NULL_ADDR);
+	if (fio->io_type == FS_DATA_IO || fio->io_type == FS_CP_DATA_IO)
+		f2fs_update_age_extent_cache(dn);
 	set_summary(&sum, dn->nid, dn->ofs_in_node, fio->version);
 	do_write_page(&sum, fio);
 	f2fs_update_data_blkaddr(dn, fio->new_blkaddr);
diff --git a/fs/f2fs/shrinker.c b/fs/f2fs/shrinker.c
index 33c490e69ae3..83d6fb97dcae 100644
--- a/fs/f2fs/shrinker.c
+++ b/fs/f2fs/shrinker.c
@@ -59,6 +59,9 @@ unsigned long f2fs_shrink_count(struct shrinker *shrink,
 		/* count read extent cache entries */
 		count += __count_extent_cache(sbi, EX_READ);
 
+		/* count block age extent cache entries */
+		count += __count_extent_cache(sbi, EX_BLOCK_AGE);
+
 		/* count clean nat cache entries */
 		count += __count_nat_entries(sbi);
 
@@ -102,8 +105,11 @@ unsigned long f2fs_shrink_scan(struct shrinker *shrink,
 
 		sbi->shrinker_run_no = run_no;
 
+		/* shrink extent cache entries */
+		freed += f2fs_shrink_age_extent_tree(sbi, nr >> 2);
+
 		/* shrink read extent cache entries */
-		freed += f2fs_shrink_read_extent_tree(sbi, nr >> 1);
+		freed += f2fs_shrink_read_extent_tree(sbi, nr >> 2);
 
 		/* shrink clean nat cache entries */
 		if (freed < nr)
@@ -134,6 +140,8 @@ void f2fs_join_shrinker(struct f2fs_sb_info *sbi)
 void f2fs_leave_shrinker(struct f2fs_sb_info *sbi)
 {
 	f2fs_shrink_read_extent_tree(sbi, __count_extent_cache(sbi, EX_READ));
+	f2fs_shrink_age_extent_tree(sbi,
+				__count_extent_cache(sbi, EX_BLOCK_AGE));
 
 	spin_lock(&f2fs_list_lock);
 	list_del_init(&sbi->s_list);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 98da6a8636e0..9650528d8f65 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -154,6 +154,7 @@ enum {
 	Opt_atgc,
 	Opt_gc_merge,
 	Opt_nogc_merge,
+	Opt_age_extent_cache,
 	Opt_err,
 };
 
@@ -229,6 +230,7 @@ static match_table_t f2fs_tokens = {
 	{Opt_atgc, "atgc"},
 	{Opt_gc_merge, "gc_merge"},
 	{Opt_nogc_merge, "nogc_merge"},
+	{Opt_age_extent_cache, "age_extent_cache"},
 	{Opt_err, NULL},
 };
 
@@ -1148,6 +1150,9 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
 		case Opt_nogc_merge:
 			clear_opt(sbi, GC_MERGE);
 			break;
+		case Opt_age_extent_cache:
+			set_opt(sbi, AGE_EXTENT_CACHE);
+			break;
 		default:
 			f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
 				 p);
@@ -1821,6 +1826,8 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 		seq_puts(seq, ",extent_cache");
 	else
 		seq_puts(seq, ",noextent_cache");
+	if (test_opt(sbi, AGE_EXTENT_CACHE))
+		seq_puts(seq, ",age_extent_cache");
 	if (test_opt(sbi, DATA_FLUSH))
 		seq_puts(seq, ",data_flush");
 
@@ -2043,6 +2050,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 	bool need_restart_ckpt = false, need_stop_ckpt = false;
 	bool need_restart_flush = false, need_stop_flush = false;
 	bool no_read_extent_cache = !test_opt(sbi, READ_EXTENT_CACHE);
+	bool no_age_extent_cache = !test_opt(sbi, AGE_EXTENT_CACHE);
 	bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT);
 	bool no_io_align = !F2FS_IO_ALIGNED(sbi);
 	bool no_atgc = !test_opt(sbi, ATGC);
@@ -2137,6 +2145,12 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 		f2fs_warn(sbi, "switch extent_cache option is not allowed");
 		goto restore_opts;
 	}
+	/* disallow enable/disable age extent_cache dynamically */
+	if (no_age_extent_cache == !!test_opt(sbi, AGE_EXTENT_CACHE)) {
+		err = -EINVAL;
+		f2fs_warn(sbi, "switch age_extent_cache option is not allowed");
+		goto restore_opts;
+	}
 
 	if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
 		err = -EINVAL;
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 23eba7514c9c..c9217d7a941f 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -549,6 +549,24 @@ out:
 		return count;
 	}
 
+	if (!strcmp(a->attr.name, "hot_data_age_threshold")) {
+		if (t == 0 || t >= sbi->warm_data_age_threshold)
+			return -EINVAL;
+		if (t == *ui)
+			return count;
+		*ui = (unsigned int)t;
+		return count;
+	}
+
+	if (!strcmp(a->attr.name, "warm_data_age_threshold")) {
+		if (t == 0 || t <= sbi->hot_data_age_threshold)
+			return -EINVAL;
+		if (t == *ui)
+			return count;
+		*ui = (unsigned int)t;
+		return count;
+	}
+
 	*ui = (unsigned int)t;
 
 	return count;
@@ -778,6 +796,10 @@ F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_segment_mode, gc_segment_mode);
 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_reclaimed_segments, gc_reclaimed_segs);
 
+/* For block age extent cache */
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, hot_data_age_threshold, hot_data_age_threshold);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, warm_data_age_threshold, warm_data_age_threshold);
+
 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
 static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(gc_urgent_sleep_time),
@@ -853,6 +875,8 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(atgc_age_threshold),
 	ATTR_LIST(gc_segment_mode),
 	ATTR_LIST(gc_reclaimed_segments),
+	ATTR_LIST(hot_data_age_threshold),
+	ATTR_LIST(warm_data_age_threshold),
 	NULL,
 };
 ATTRIBUTE_GROUPS(f2fs);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 81cb234cfaf6..e927889c7fd5 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -53,6 +53,7 @@ TRACE_DEFINE_ENUM(CP_TRIMMED);
 TRACE_DEFINE_ENUM(CP_PAUSE);
 TRACE_DEFINE_ENUM(CP_RESIZE);
 TRACE_DEFINE_ENUM(EX_READ);
+TRACE_DEFINE_ENUM(EX_BLOCK_AGE);
 
 #define show_block_type(type)						\
 	__print_symbolic(type,						\
@@ -163,6 +164,11 @@ TRACE_DEFINE_ENUM(EX_READ);
 		{ COMPRESS_ZSTD,	"ZSTD" },			\
 		{ COMPRESS_LZORLE,	"LZO-RLE" })
 
+#define show_extent_type(type)						\
+	__print_symbolic(type,						\
+		{ EX_READ,	"Read" },				\
+		{ EX_BLOCK_AGE,	"Block Age" })
+
 struct f2fs_sb_info;
 struct f2fs_io_info;
 struct extent_info;
@@ -1548,7 +1554,7 @@ TRACE_EVENT(f2fs_lookup_extent_tree_start,
 	TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u, type = %s",
 		show_dev_ino(__entry),
 		__entry->pgofs,
-		__entry->type == EX_READ ? "Read" : "N/A")
+		show_extent_type(__entry->type))
 );
 
 TRACE_EVENT_CONDITION(f2fs_lookup_read_extent_tree_end,
@@ -1587,6 +1593,45 @@ TRACE_EVENT_CONDITION(f2fs_lookup_read_extent_tree_end,
 		__entry->blk)
 );
 
+TRACE_EVENT_CONDITION(f2fs_lookup_age_extent_tree_end,
+
+	TP_PROTO(struct inode *inode, unsigned int pgofs,
+						struct extent_info *ei),
+
+	TP_ARGS(inode, pgofs, ei),
+
+	TP_CONDITION(ei),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(unsigned int, pgofs)
+		__field(unsigned int, fofs)
+		__field(unsigned int, len)
+		__field(unsigned long long, age)
+		__field(unsigned long long, blocks)
+	),
+
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->pgofs = pgofs;
+		__entry->fofs = ei->fofs;
+		__entry->len = ei->len;
+		__entry->age = ei->age;
+		__entry->blocks = ei->last_blocks;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u, "
+		"age_ext_info(fofs: %u, len: %u, age: %llu, blocks: %llu)",
+		show_dev_ino(__entry),
+		__entry->pgofs,
+		__entry->fofs,
+		__entry->len,
+		__entry->age,
+		__entry->blocks)
+);
+
 TRACE_EVENT(f2fs_update_read_extent_tree_range,
 
 	TP_PROTO(struct inode *inode, unsigned int pgofs, unsigned int len,
@@ -1622,6 +1667,41 @@ TRACE_EVENT(f2fs_update_read_extent_tree_range,
 		__entry->c_len)
 );
 
+TRACE_EVENT(f2fs_update_age_extent_tree_range,
+
+	TP_PROTO(struct inode *inode, unsigned int pgofs, unsigned int len,
+					unsigned long long age,
+					unsigned long long last_blks),
+
+	TP_ARGS(inode, pgofs, len, age, last_blks),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(unsigned int, pgofs)
+		__field(unsigned int, len)
+		__field(unsigned long long, age)
+		__field(unsigned long long, blocks)
+	),
+
+	TP_fast_assign(
+		__entry->dev = inode->i_sb->s_dev;
+		__entry->ino = inode->i_ino;
+		__entry->pgofs = pgofs;
+		__entry->len = len;
+		__entry->age = age;
+		__entry->blocks = last_blks;
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, pgofs = %u, "
+				"len = %u, age = %llu, blocks = %llu",
+		show_dev_ino(__entry),
+		__entry->pgofs,
+		__entry->len,
+		__entry->age,
+		__entry->blocks)
+);
+
 TRACE_EVENT(f2fs_shrink_extent_tree,
 
 	TP_PROTO(struct f2fs_sb_info *sbi, unsigned int node_cnt,
@@ -1647,7 +1727,7 @@ TRACE_EVENT(f2fs_shrink_extent_tree,
 		show_dev(__entry->dev),
 		__entry->node_cnt,
 		__entry->tree_cnt,
-		__entry->type == EX_READ ? "Read" : "N/A")
+		show_extent_type(__entry->type))
 );
 
 TRACE_EVENT(f2fs_destroy_extent_tree,
@@ -1674,7 +1754,7 @@ TRACE_EVENT(f2fs_destroy_extent_tree,
 	TP_printk("dev = (%d,%d), ino = %lu, destroyed: node_cnt = %u, type = %s",
 		show_dev_ino(__entry),
 		__entry->node_cnt,
-		__entry->type == EX_READ ? "Read" : "N/A")
+		show_extent_type(__entry->type))
 );
 
 DECLARE_EVENT_CLASS(f2fs_sync_dirty_inodes,