diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index dabb43e..9b36791 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -94,6 +94,7 @@
 #define F2FS_MOUNT_GRPQUOTA		0x00100000
 #define F2FS_MOUNT_PRJQUOTA		0x00200000
 #define F2FS_MOUNT_QUOTA		0x00400000
+#define F2FS_MOUNT_INLINE_XATTR_SIZE	0x00800000
 
 #define clear_opt(sbi, option)	((sbi)->mount_opt.opt &= ~F2FS_MOUNT_##option)
 #define set_opt(sbi, option)	((sbi)->mount_opt.opt |= F2FS_MOUNT_##option)
@@ -119,6 +120,7 @@
 #define F2FS_FEATURE_EXTRA_ATTR		0x0008
 #define F2FS_FEATURE_PRJQUOTA		0x0010
 #define F2FS_FEATURE_INODE_CHKSUM	0x0020
+#define F2FS_FEATURE_FLEXIBLE_INLINE_XATTR	0x0040
 
 #define F2FS_HAS_FEATURE(sb, mask)					\
 	((F2FS_SB(sb)->raw_super->feature & cpu_to_le32(mask)) != 0)
@@ -395,11 +397,14 @@
 
 /* for inline stuff */
 #define DEF_INLINE_RESERVED_SIZE	1
+#define DEF_MIN_INLINE_SIZE		1
 static inline int get_extra_isize(struct inode *inode);
-#define MAX_INLINE_DATA(inode)	(sizeof(__le32) * \
-				(CUR_ADDRS_PER_INODE(inode) - \
-				DEF_INLINE_RESERVED_SIZE - \
-				F2FS_INLINE_XATTR_ADDRS))
+static inline int get_inline_xattr_addrs(struct inode *inode);
+#define F2FS_INLINE_XATTR_ADDRS(inode)	get_inline_xattr_addrs(inode)
+#define MAX_INLINE_DATA(inode)	(sizeof(__le32) *			\
+				(CUR_ADDRS_PER_INODE(inode) -		\
+				F2FS_INLINE_XATTR_ADDRS(inode) -	\
+				DEF_INLINE_RESERVED_SIZE))
 
 /* for inline dir */
 #define NR_INLINE_DENTRY(inode)	(MAX_INLINE_DATA(inode) * BITS_PER_BYTE / \
@@ -610,6 +615,7 @@
 
 	int i_extra_isize;		/* size of extra space located in i_addr */
 	kprojid_t i_projid;		/* id for project quota */
+	int i_inline_xattr_size;	/* inline xattr size */
 };
 
 static inline void get_extent_info(struct extent_info *ext,
@@ -1067,6 +1073,7 @@
 	loff_t max_file_blocks;			/* max block index of file */
 	int active_logs;			/* # of active logs */
 	int dir_level;				/* directory level */
+	int inline_xattr_size;			/* inline xattr size */
 
 	block_t user_block_count;		/* # of user blocks */
 	block_t total_valid_block_count;	/* # of valid blocks */
@@ -2184,25 +2191,20 @@
 
 static inline unsigned int addrs_per_inode(struct inode *inode)
 {
-	if (f2fs_has_inline_xattr(inode))
-		return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS;
-	return CUR_ADDRS_PER_INODE(inode);
+	return CUR_ADDRS_PER_INODE(inode) - F2FS_INLINE_XATTR_ADDRS(inode);
 }
 
-static inline void *inline_xattr_addr(struct page *page)
+static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
 {
 	struct f2fs_inode *ri = F2FS_INODE(page);
 
 	return (void *)&(ri->i_addr[DEF_ADDRS_PER_INODE -
-					F2FS_INLINE_XATTR_ADDRS]);
+					F2FS_INLINE_XATTR_ADDRS(inode)]);
 }
 
 static inline int inline_xattr_size(struct inode *inode)
 {
-	if (f2fs_has_inline_xattr(inode))
-		return F2FS_INLINE_XATTR_ADDRS << 2;
-	else
-		return 0;
+	return get_inline_xattr_addrs(inode) * sizeof(__le32);
 }
 
 static inline int f2fs_has_inline_data(struct inode *inode)
@@ -2382,6 +2384,12 @@
 	return F2FS_I(inode)->i_extra_isize / sizeof(__le32);
 }
 
+static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb);
+static inline int get_inline_xattr_addrs(struct inode *inode)
+{
+	return F2FS_I(inode)->i_inline_xattr_size;
+}
+
 #define get_inode_mode(i) \
 	((is_inode_flag_set(i, FI_ACL_MODE)) ? \
 	 (F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
@@ -3051,6 +3059,11 @@
 	return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_INODE_CHKSUM);
 }
 
+static inline int f2fs_sb_has_flexible_inline_xattr(struct super_block *sb)
+{
+	return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR);
+}
+
 #ifdef CONFIG_BLK_DEV_ZONED
 static inline int get_blkz_type(struct f2fs_sb_info *sbi,
 			struct block_device *bdev, block_t blkaddr)
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 3617e7fc..9684d535 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -232,6 +232,23 @@
 	fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
 					le16_to_cpu(ri->i_extra_isize) : 0;
 
+	if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
+		f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
+		fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
+	} else if (f2fs_has_inline_xattr(inode) ||
+				f2fs_has_inline_dentry(inode)) {
+		fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
+	} else {
+
+		/*
+		 * Previous inline data or directory always reserved 200 bytes
+		 * in inode layout, even if inline_xattr is disabled. In order
+		 * to keep inline_dentry's structure for backward compatibility,
+		 * we get the space back only from inline_data.
+		 */
+		fi->i_inline_xattr_size = 0;
+	}
+
 	/* check data exist */
 	if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
 		__recover_inline_status(inode, node_page);
@@ -384,6 +401,10 @@
 	if (f2fs_has_extra_attr(inode)) {
 		ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
 
+		if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)->sb))
+			ri->i_inline_xattr_size =
+				cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
+
 		if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) &&
 			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
 								i_projid)) {
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index df7880b..5deadc9 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -29,6 +29,7 @@
 	nid_t ino;
 	struct inode *inode;
 	bool nid_free = false;
+	int xattr_size = 0;
 	int err;
 
 	inode = new_inode(dir->i_sb);
@@ -86,11 +87,23 @@
 
 	if (test_opt(sbi, INLINE_XATTR))
 		set_inode_flag(inode, FI_INLINE_XATTR);
+
 	if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
 		set_inode_flag(inode, FI_INLINE_DATA);
 	if (f2fs_may_inline_dentry(inode))
 		set_inode_flag(inode, FI_INLINE_DENTRY);
 
+	if (f2fs_sb_has_flexible_inline_xattr(sbi->sb)) {
+		f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
+		if (f2fs_has_inline_xattr(inode))
+			xattr_size = sbi->inline_xattr_size;
+		/* Otherwise, will be 0 */
+	} else if (f2fs_has_inline_xattr(inode) ||
+				f2fs_has_inline_dentry(inode)) {
+		xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
+	}
+	F2FS_I(inode)->i_inline_xattr_size = xattr_size;
+
 	f2fs_init_extent_tree(inode, NULL);
 
 	stat_inc_inline_xattr(inode);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index bdb7e92..f44d837 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2191,8 +2191,8 @@
 		goto update_inode;
 	}
 
-	dst_addr = inline_xattr_addr(ipage);
-	src_addr = inline_xattr_addr(page);
+	dst_addr = inline_xattr_addr(inode, ipage);
+	src_addr = inline_xattr_addr(inode, page);
 	inline_size = inline_xattr_size(inode);
 
 	f2fs_wait_on_page_writeback(ipage, NODE, true);
@@ -2281,6 +2281,12 @@
 	dst->i_inline = src->i_inline & (F2FS_INLINE_XATTR | F2FS_EXTRA_ATTR);
 	if (dst->i_inline & F2FS_EXTRA_ATTR) {
 		dst->i_extra_isize = src->i_extra_isize;
+
+		if (f2fs_sb_has_flexible_inline_xattr(sbi->sb) &&
+			F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
+							i_inline_xattr_size))
+			dst->i_inline_xattr_size = src->i_inline_xattr_size;
+
 		if (f2fs_sb_has_project_quota(sbi->sb) &&
 			F2FS_FITS_IN_INODE(src, le16_to_cpu(src->i_extra_isize),
 								i_projid))
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 272625a..53a7fd8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -92,6 +92,7 @@
 	Opt_disable_ext_identify,
 	Opt_inline_xattr,
 	Opt_noinline_xattr,
+	Opt_inline_xattr_size,
 	Opt_inline_data,
 	Opt_inline_dentry,
 	Opt_noinline_dentry,
@@ -141,6 +142,7 @@
 	{Opt_disable_ext_identify, "disable_ext_identify"},
 	{Opt_inline_xattr, "inline_xattr"},
 	{Opt_noinline_xattr, "noinline_xattr"},
+	{Opt_inline_xattr_size, "inline_xattr_size=%u"},
 	{Opt_inline_data, "inline_data"},
 	{Opt_inline_dentry, "inline_dentry"},
 	{Opt_noinline_dentry, "noinline_dentry"},
@@ -383,6 +385,12 @@
 		case Opt_noinline_xattr:
 			clear_opt(sbi, INLINE_XATTR);
 			break;
+		case Opt_inline_xattr_size:
+			if (args->from && match_int(args, &arg))
+				return -EINVAL;
+			set_opt(sbi, INLINE_XATTR_SIZE);
+			sbi->inline_xattr_size = arg;
+			break;
 #else
 		case Opt_user_xattr:
 			f2fs_msg(sb, KERN_INFO,
@@ -604,6 +612,24 @@
 				F2FS_IO_SIZE_KB(sbi));
 		return -EINVAL;
 	}
+
+	if (test_opt(sbi, INLINE_XATTR_SIZE)) {
+		if (!test_opt(sbi, INLINE_XATTR)) {
+			f2fs_msg(sb, KERN_ERR,
+					"inline_xattr_size option should be "
+					"set with inline_xattr option");
+			return -EINVAL;
+		}
+		if (!sbi->inline_xattr_size ||
+			sbi->inline_xattr_size >= DEF_ADDRS_PER_INODE -
+					F2FS_TOTAL_EXTRA_ATTR_SIZE -
+					DEF_INLINE_RESERVED_SIZE -
+					DEF_MIN_INLINE_SIZE) {
+			f2fs_msg(sb, KERN_ERR,
+					"inline xattr size is out of range");
+			return -EINVAL;
+		}
+	}
 	return 0;
 }
 
@@ -1050,6 +1076,9 @@
 		seq_puts(seq, ",inline_xattr");
 	else
 		seq_puts(seq, ",noinline_xattr");
+	if (test_opt(sbi, INLINE_XATTR_SIZE))
+		seq_printf(seq, ",inline_xattr_size=%u",
+					sbi->inline_xattr_size);
 #endif
 #ifdef CONFIG_F2FS_FS_POSIX_ACL
 	if (test_opt(sbi, POSIX_ACL))
@@ -1112,6 +1141,7 @@
 {
 	/* init some FS parameters */
 	sbi->active_logs = NR_CURSEG_TYPE;
+	sbi->inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
 
 	set_opt(sbi, BG_GC);
 	set_opt(sbi, INLINE_XATTR);
@@ -1670,7 +1700,7 @@
 
 	/*
 	 * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
-	 * F2FS_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
+	 * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
 	 * space in inode.i_addr, it will be more safe to reassign
 	 * result as zero.
 	 */
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 48ebe61..e09e59c 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -107,6 +107,9 @@
 	if (f2fs_sb_has_inode_chksum(sb))
 		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
 				len ? ", " : "", "inode_checksum");
+	if (f2fs_sb_has_flexible_inline_xattr(sb))
+		len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+				len ? ", " : "", "flexible_inline_xattr");
 	len += snprintf(buf + len, PAGE_SIZE - len, "\n");
 	return len;
 }
@@ -216,6 +219,7 @@
 	FEAT_EXTRA_ATTR,
 	FEAT_PROJECT_QUOTA,
 	FEAT_INODE_CHECKSUM,
+	FEAT_FLEXIBLE_INLINE_XATTR,
 };
 
 static ssize_t f2fs_feature_show(struct f2fs_attr *a,
@@ -228,6 +232,7 @@
 	case FEAT_EXTRA_ATTR:
 	case FEAT_PROJECT_QUOTA:
 	case FEAT_INODE_CHECKSUM:
+	case FEAT_FLEXIBLE_INLINE_XATTR:
 		return snprintf(buf, PAGE_SIZE, "supported\n");
 	}
 	return 0;
@@ -299,6 +304,7 @@
 F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR);
 F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA);
 F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM);
+F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
 
 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
 static struct attribute *f2fs_attrs[] = {
@@ -346,6 +352,7 @@
 	ATTR_LIST(extra_attr),
 	ATTR_LIST(project_quota),
 	ATTR_LIST(inode_checksum),
+	ATTR_LIST(flexible_inline_xattr),
 	NULL,
 };
 
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 9fbcb76..52b46f5 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -217,12 +217,12 @@
 	return entry;
 }
 
-static struct f2fs_xattr_entry *__find_inline_xattr(void *base_addr,
-					void **last_addr, int index,
-					size_t len, const char *name)
+static struct f2fs_xattr_entry *__find_inline_xattr(struct inode *inode,
+				void *base_addr, void **last_addr, int index,
+				size_t len, const char *name)
 {
 	struct f2fs_xattr_entry *entry;
-	unsigned int inline_size = F2FS_INLINE_XATTR_ADDRS << 2;
+	unsigned int inline_size = inline_xattr_size(inode);
 
 	list_for_each_xattr(entry, base_addr) {
 		if ((void *)entry + sizeof(__u32) > base_addr + inline_size ||
@@ -250,13 +250,13 @@
 	void *inline_addr;
 
 	if (ipage) {
-		inline_addr = inline_xattr_addr(ipage);
+		inline_addr = inline_xattr_addr(inode, ipage);
 	} else {
 		page = get_node_page(sbi, inode->i_ino);
 		if (IS_ERR(page))
 			return PTR_ERR(page);
 
-		inline_addr = inline_xattr_addr(page);
+		inline_addr = inline_xattr_addr(inode, page);
 	}
 	memcpy(txattr_addr, inline_addr, inline_size);
 	f2fs_put_page(page, 1);
@@ -309,7 +309,7 @@
 		if (err)
 			goto out;
 
-		*xe = __find_inline_xattr(txattr_addr, &last_addr,
+		*xe = __find_inline_xattr(inode, txattr_addr, &last_addr,
 						index, len, name);
 		if (*xe)
 			goto check;
@@ -404,7 +404,7 @@
 		void *inline_addr;
 
 		if (ipage) {
-			inline_addr = inline_xattr_addr(ipage);
+			inline_addr = inline_xattr_addr(inode, ipage);
 			f2fs_wait_on_page_writeback(ipage, NODE, true);
 			set_page_dirty(ipage);
 		} else {
@@ -413,7 +413,7 @@
 				alloc_nid_failed(sbi, new_nid);
 				return PTR_ERR(page);
 			}
-			inline_addr = inline_xattr_addr(page);
+			inline_addr = inline_xattr_addr(inode, page);
 			f2fs_wait_on_page_writeback(page, NODE, true);
 		}
 		memcpy(inline_addr, txattr_addr, inline_size);