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Message-ID: <20231130190119.1281671-1-daeho43@gmail.com>
Date:   Thu, 30 Nov 2023 11:01:19 -0800
From:   Daeho Jeong <daeho43@...il.com>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc:     Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH] f2fs-tools: support zoned ufs devices

From: Daeho Jeong <daehojeong@...gle.com>

Support zoned ufs devices.
1. implemented out-place updates
2. keep roll forward recovery intact
3. open block device files with O_SYNC to comply with zoned device's
   write rules

Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
 fsck/defrag.c  |   2 +-
 fsck/dir.c     |  47 +++++++++++----
 fsck/f2fs.h    |   3 +-
 fsck/fsck.c    |  96 +++++++++++++++++++------------
 fsck/fsck.h    |  31 +++++++---
 fsck/main.c    |   3 +
 fsck/mount.c   | 151 ++++++++++++++++++++++++++++++++++++++++---------
 fsck/node.c    |  30 ++++++++--
 fsck/node.h    |   1 +
 fsck/resize.c  |   2 +-
 fsck/segment.c | 120 ++++++++++++++++++++++++++++++++++-----
 fsck/xattr.c   |   7 ++-
 lib/libf2fs.c  |  32 +++++++----
 13 files changed, 405 insertions(+), 120 deletions(-)

diff --git a/fsck/defrag.c b/fsck/defrag.c
index 90c2962..361fe73 100644
--- a/fsck/defrag.c
+++ b/fsck/defrag.c
@@ -49,7 +49,7 @@ static int migrate_block(struct f2fs_sb_info *sbi, u64 from, u64 to)
 	/* if data block, read node and update node block */
 	if (IS_DATASEG(type))
 		update_data_blkaddr(sbi, le32_to_cpu(sum.nid),
-				le16_to_cpu(sum.ofs_in_node), to);
+				le16_to_cpu(sum.ofs_in_node), to, NULL);
 	else
 		update_nat_blkaddr(sbi, 0, le32_to_cpu(sum.nid), to);
 
diff --git a/fsck/dir.c b/fsck/dir.c
index d51176a..3fac850 100644
--- a/fsck/dir.c
+++ b/fsck/dir.c
@@ -220,7 +220,7 @@ static void f2fs_update_dentry(nid_t ino, int file_type,
  */
 int f2fs_add_link(struct f2fs_sb_info *sbi, struct f2fs_node *parent,
 			const unsigned char *name, int name_len, nid_t ino,
-			int file_type, block_t p_blkaddr, int inc_link)
+			int file_type, block_t *p_blkaddr, int inc_link)
 {
 	int level = 0, current_depth, bit_pos;
 	int nbucket, nblock, bidx, block;
@@ -232,6 +232,7 @@ int f2fs_add_link(struct f2fs_sb_info *sbi, struct f2fs_node *parent,
 	nid_t pino;
 	unsigned int dir_level;
 	int ret;
+	bool datablk_alloced = false;
 
 	if (parent == NULL)
 		return -EINVAL;
@@ -278,6 +279,7 @@ start:
 
 		if (dn.data_blkaddr == NULL_ADDR) {
 			new_data_block(sbi, dentry_blk, &dn, CURSEG_HOT_DATA);
+			datablk_alloced = true;
 		} else {
 			ret = dev_read_block(dentry_blk, dn.data_blkaddr);
 			ASSERT(ret >= 0);
@@ -295,7 +297,20 @@ add_dentry:
 	make_dentry_ptr(&d, NULL, (void *)dentry_blk, 1);
 	f2fs_update_dentry(ino, file_type, &d, name, name_len, dentry_hash, bit_pos);
 
-	ret = dev_write_block(dentry_blk, dn.data_blkaddr);
+	if (c.zoned_model == F2FS_ZONED_HM) {
+		if (datablk_alloced) {
+			ret = dev_write_block(dentry_blk, dn.data_blkaddr);
+		} else {
+			ret = update_block(sbi, dentry_blk, &dn.data_blkaddr,
+					dn.node_blk);
+			if (dn.inode_blk == dn.node_blk)
+				dn.idirty = 1;
+			else
+				dn.ndirty = 1;
+		}
+	} else {
+		ret = dev_write_block(dentry_blk, dn.data_blkaddr);
+	}
 	ASSERT(ret >= 0);
 
 	/*
@@ -321,13 +336,15 @@ add_dentry:
 	}
 
 	if (dn.ndirty) {
-		ret = dev_write_block(dn.node_blk, dn.node_blkaddr);
+		ret = dn.alloced ?
+			dev_write_block(dn.node_blk, dn.node_blkaddr) :
+			update_block(sbi, dn.node_blk, &dn.node_blkaddr, NULL);
 		ASSERT(ret >= 0);
 	}
 
 	if (dn.idirty) {
 		ASSERT(parent == dn.inode_blk);
-		ret = write_inode(dn.inode_blk, p_blkaddr);
+		ret = update_inode(sbi, dn.inode_blk, p_blkaddr);
 		ASSERT(ret >= 0);
 	}
 
@@ -552,7 +569,7 @@ static void init_inode_block(struct f2fs_sb_info *sbi,
 }
 
 int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node,
-							block_t p_blkaddr)
+							block_t *p_blkaddr)
 {
 	struct f2fs_inode *inode = &(node->i);
 	unsigned int dir_level = node->i.i_dir_level;
@@ -562,6 +579,7 @@ int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node,
 	struct f2fs_dentry_ptr d;
 	unsigned long bit_pos = 0;
 	int ret = 0;
+	bool datablk_alloced = false;
 
 	if (!(inode->i_inline & F2FS_INLINE_DENTRY))
 		return 0;
@@ -570,7 +588,7 @@ int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node,
 	memset(inline_data_addr(node), 0, MAX_INLINE_DATA(node));
 	inode->i_inline &= ~F2FS_INLINE_DENTRY;
 
-	ret = dev_write_block(node, p_blkaddr);
+	ret = update_block(sbi, node, p_blkaddr, NULL);
 	ASSERT(ret >= 0);
 
 	memset(&dn, 0, sizeof(dn));
@@ -583,8 +601,10 @@ int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node,
 
 		set_new_dnode(&dn, node, NULL, ino);
 		get_dnode_of_data(sbi, &dn, 0, ALLOC_NODE);
-		if (dn.data_blkaddr == NULL_ADDR)
+		if (dn.data_blkaddr == NULL_ADDR) {
 			new_data_block(sbi, dentry_blk, &dn, CURSEG_HOT_DATA);
+			datablk_alloced = true;
+		}
 
 		make_dentry_ptr(&src, node, (void *)inline_data, 2);
 		make_dentry_ptr(&dst, NULL, (void *)dentry_blk, 1);
@@ -597,7 +617,9 @@ int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node,
 		memcpy(dst.dentry, src.dentry, SIZE_OF_DIR_ENTRY * src.max);
 		memcpy(dst.filename, src.filename, src.max * F2FS_SLOT_LEN);
 
-		ret = dev_write_block(dentry_blk, dn.data_blkaddr);
+		ret = datablk_alloced ?
+			dev_write_block(dentry_blk, dn.data_blkaddr) :
+			update_block(sbi, dentry_blk, &dn.data_blkaddr, NULL);
 		ASSERT(ret >= 0);
 
 		MSG(1, "%s: copy inline entry to block\n", __func__);
@@ -687,6 +709,7 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
 	struct f2fs_summary sum;
 	block_t blkaddr = NULL_ADDR;
 	int ret;
+	bool nodeblk_alloced = false;
 
 	/* Find if there is a */
 	get_node_info(sbi, de->pino, &ni);
@@ -705,7 +728,7 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
 	ASSERT(ret >= 0);
 
 	/* Must convert inline dentry before the following opertions */
-	ret = convert_inline_dentry(sbi, parent, ni.blk_addr);
+	ret = convert_inline_dentry(sbi, parent, &ni.blk_addr);
 	if (ret) {
 		MSG(0, "Convert inline dentry for pino=%x failed.\n", de->pino);
 		ret = -1;
@@ -753,7 +776,7 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
 				le32_to_cpu(child->i.i_namelen),
 				le32_to_cpu(F2FS_NODE_FOOTER(child)->ino),
 				map_de_type(le16_to_cpu(child->i.i_mode)),
-				ni.blk_addr, 1);
+				&ni.blk_addr, 1);
 	if (ret) {
 		MSG(0, "Skip the existing \"%s\" pino=%x ERR=%d\n",
 					de->name, de->pino, ret);
@@ -788,13 +811,15 @@ int f2fs_create(struct f2fs_sb_info *sbi, struct dentry *de)
 	/* write child */
 	set_summary(&sum, de->ino, 0, ni.version);
 	ret = reserve_new_block(sbi, &blkaddr, &sum, CURSEG_HOT_NODE, 1);
+	nodeblk_alloced = true;
 	ASSERT(!ret);
 
 	/* update nat info */
 	update_nat_blkaddr(sbi, de->ino, de->ino, blkaddr);
 
 write_child_dir:
-	ret = dev_write_block(child, blkaddr);
+	ret = nodeblk_alloced ? dev_write_block(child, blkaddr) :
+		update_block(sbi, child, &blkaddr, NULL);
 	ASSERT(ret >= 0);
 
 	update_free_segments(sbi);
diff --git a/fsck/f2fs.h b/fsck/f2fs.h
index b073a94..e31be22 100644
--- a/fsck/f2fs.h
+++ b/fsck/f2fs.h
@@ -189,6 +189,7 @@ struct curseg_info {
 struct f2fs_sm_info {
 	struct sit_info *sit_info;
 	struct curseg_info *curseg_array;
+	struct curseg_info saved_curseg_warm_node;
 
 	block_t seg0_blkaddr;
 	block_t main_blkaddr;
@@ -238,7 +239,7 @@ struct dnode_of_data {
 	unsigned int ofs_in_node;
 	block_t data_blkaddr;
 	block_t node_blkaddr;
-	int idirty, ndirty;
+	int idirty, ndirty, alloced;
 };
 
 struct hardlink_cache_entry {
diff --git a/fsck/fsck.c b/fsck/fsck.c
index f40b4cd..8acb822 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -45,7 +45,7 @@ static inline int f2fs_test_main_bitmap(struct f2fs_sb_info *sbi, u32 blk)
 						fsck->main_area_bitmap);
 }
 
-static inline int f2fs_clear_main_bitmap(struct f2fs_sb_info *sbi, u32 blk)
+int f2fs_clear_main_bitmap(struct f2fs_sb_info *sbi, u32 blk)
 {
 	struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
 
@@ -67,7 +67,7 @@ int f2fs_set_sit_bitmap(struct f2fs_sb_info *sbi, u32 blk)
 	return f2fs_set_bit(BLKOFF_FROM_MAIN(sbi, blk), fsck->sit_area_bitmap);
 }
 
-static inline int f2fs_clear_sit_bitmap(struct f2fs_sb_info *sbi, u32 blk)
+int f2fs_clear_sit_bitmap(struct f2fs_sb_info *sbi, u32 blk)
 {
 	struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
 
@@ -1182,7 +1182,9 @@ check_next:
 				blkaddr,
 				&child, (i_blocks == *blk_cnt),
 				ftype, nid, idx, ni->version,
-				file_is_encrypt(&node_blk->i));
+				file_is_encrypt(&node_blk->i), node_blk);
+		if (blkaddr != le32_to_cpu(node_blk->i.i_addr[ofs + idx]))
+			need_fix = 1;
 		if (!ret) {
 			*blk_cnt = *blk_cnt + 1;
 			if (cur_qtype != -1 && blkaddr != NEW_ADDR)
@@ -1398,7 +1400,9 @@ skip_blkcnt_fix:
 	}
 
 	if (need_fix && f2fs_dev_is_writable()) {
-		ret = dev_write_block(node_blk, ni->blk_addr);
+		if (c.zoned_model == F2FS_ZONED_HM)
+			node_blk->i.i_ext.len = 0;
+		ret = update_block(sbi, node_blk, &ni->blk_addr, NULL);
 		ASSERT(ret >= 0);
 	}
 }
@@ -1450,7 +1454,9 @@ int fsck_chk_dnode_blk(struct f2fs_sb_info *sbi, struct f2fs_inode *inode,
 			blkaddr, child,
 			le64_to_cpu(inode->i_blocks) == *blk_cnt, ftype,
 			nid, idx, ni->version,
-			file_is_encrypt(inode));
+			file_is_encrypt(inode), node_blk);
+		if (blkaddr != le32_to_cpu(node_blk->dn.addr[idx]))
+			need_fix = 1;
 		if (!ret) {
 			*blk_cnt = *blk_cnt + 1;
 			if (cur_qtype != -1 && blkaddr != NEW_ADDR)
@@ -1462,7 +1468,7 @@ int fsck_chk_dnode_blk(struct f2fs_sb_info *sbi, struct f2fs_inode *inode,
 		}
 	}
 	if (need_fix && f2fs_dev_is_writable()) {
-		ret = dev_write_block(node_blk, ni->blk_addr);
+		ret = update_block(sbi, node_blk, &ni->blk_addr, NULL);
 		ASSERT(ret >= 0);
 	}
 	return 0;
@@ -1504,7 +1510,7 @@ skip:
 		nid_t nid = le32_to_cpu(F2FS_NODE_FOOTER(node_blk)->nid);
 
 		get_node_info(sbi, nid, &ni);
-		ret = dev_write_block(node_blk, ni.blk_addr);
+		ret = update_block(sbi, node_blk, &ni.blk_addr, NULL);
 		ASSERT(ret >= 0);
 	}
 
@@ -1546,7 +1552,7 @@ skip:
 		nid_t nid = le32_to_cpu(F2FS_NODE_FOOTER(node_blk)->nid);
 
 		get_node_info(sbi, nid, &ni);
-		ret = dev_write_block(node_blk, ni.blk_addr);
+		ret = update_block(sbi, node_blk, &ni.blk_addr, NULL);
 		ASSERT(ret >= 0);
 	}
 
@@ -2004,7 +2010,8 @@ int fsck_chk_inline_dentries(struct f2fs_sb_info *sbi,
 }
 
 int fsck_chk_dentry_blk(struct f2fs_sb_info *sbi, int casefolded, u32 blk_addr,
-		struct child_info *child, int last_blk, int enc_name)
+		struct child_info *child, int last_blk, int enc_name,
+		struct f2fs_node *node_blk)
 {
 	struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
 	struct f2fs_dentry_block *de_blk;
@@ -2032,7 +2039,7 @@ int fsck_chk_dentry_blk(struct f2fs_sb_info *sbi, int casefolded, u32 blk_addr,
 			NR_DENTRY_IN_BLOCK, last_blk, enc_name);
 
 	if (dentries < 0 && f2fs_dev_is_writable()) {
-		ret = dev_write_block(de_blk, blk_addr);
+		ret = update_block(sbi, de_blk, &blk_addr, node_blk);
 		ASSERT(ret >= 0);
 		DBG(1, "[%3d] Dentry Block [0x%x] Fixed hash_codes\n\n",
 			fsck->dentry_depth, blk_addr);
@@ -2054,7 +2061,7 @@ int fsck_chk_dentry_blk(struct f2fs_sb_info *sbi, int casefolded, u32 blk_addr,
 int fsck_chk_data_blk(struct f2fs_sb_info *sbi, int casefolded,
 		u32 blk_addr, struct child_info *child, int last_blk,
 		enum FILE_TYPE ftype, u32 parent_nid, u16 idx_in_node, u8 ver,
-		int enc_name)
+		int enc_name, struct f2fs_node *node_blk)
 {
 	struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
 
@@ -2088,7 +2095,7 @@ int fsck_chk_data_blk(struct f2fs_sb_info *sbi, int casefolded,
 	if (ftype == F2FS_FT_DIR) {
 		f2fs_set_main_bitmap(sbi, blk_addr, CURSEG_HOT_DATA);
 		return fsck_chk_dentry_blk(sbi, casefolded, blk_addr, child,
-						last_blk, enc_name);
+				last_blk, enc_name, node_blk);
 	} else {
 		f2fs_set_main_bitmap(sbi, blk_addr, CURSEG_WARM_DATA);
 	}
@@ -2456,7 +2463,7 @@ static void fix_hard_links(struct f2fs_sb_info *sbi)
 		FIX_MSG("File: 0x%x i_links= 0x%x -> 0x%x",
 				node->nid, node->links, node->actual_links);
 
-		ret = dev_write_block(node_blk, ni.blk_addr);
+		ret = update_block(sbi, node_blk, &ni.blk_addr, NULL);
 		ASSERT(ret >= 0);
 		tmp = node;
 		node = node->next;
@@ -2640,13 +2647,8 @@ static int last_vblk_off_in_zone(struct f2fs_sb_info *sbi,
 	for (s = segs_per_zone - 1; s >= 0; s--) {
 		se = get_seg_entry(sbi, zone_segno + s);
 
-		/*
-		 * Refer not cur_valid_map but ckpt_valid_map which reflects
-		 * fsync data.
-		 */
-		ASSERT(se->ckpt_valid_map);
 		for (b = sbi->blocks_per_seg - 1; b >= 0; b--)
-			if (f2fs_test_bit(b, (const char*)se->ckpt_valid_map))
+			if (f2fs_test_bit(b, (const char *)se->cur_valid_map))
 				return b + (s << sbi->log_blocks_per_seg);
 	}
 
@@ -2663,6 +2665,9 @@ static int check_curseg_write_pointer(struct f2fs_sb_info *sbi, int type)
 	int i, ret;
 	int log_sectors_per_block = sbi->log_blocksize - SECTOR_SHIFT;
 
+	if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG))
+		return -EINVAL;
+
 	/* get the device the curseg points to */
 	cs_block = START_BLOCK(sbi, curseg->segno) + curseg->next_blkoff;
 	for (i = 0; i < MAX_DEVICES; i++) {
@@ -2695,12 +2700,7 @@ static int check_curseg_write_pointer(struct f2fs_sb_info *sbi, int type)
 	wp_sector = blk_zone_wp_sector(&blkz);
 
 	if (cs_sector == wp_sector) {
-		if (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG))
-			return 0;
-		MSG(0, "Correct write pointer. But, we can't trust it, "
-		    "since the previous mount wasn't safely unmounted: "
-		    "curseg %d[0x%x,0x%x]\n",
-		    type, curseg->segno, curseg->next_blkoff);
+		return 0;
 	} else if (cs_sector > wp_sector) {
 		MSG(0, "Inconsistent write pointer with curseg %d: "
 		    "curseg %d[0x%x,0x%x] > wp[0x%x,0x%x]\n",
@@ -2851,7 +2851,7 @@ static struct f2fs_node *fsck_get_lpf(struct f2fs_sb_info *sbi)
 		}
 
 		/* Must convert inline dentry before adding inodes */
-		err = convert_inline_dentry(sbi, node, ni.blk_addr);
+		err = convert_inline_dentry(sbi, node, &ni.blk_addr);
 		if (err) {
 			MSG(0, "Convert inline dentry for ino=%x failed.\n",
 					lpf_ino);
@@ -2913,7 +2913,7 @@ static int fsck_do_reconnect_file(struct f2fs_sb_info *sbi,
 	get_node_info(sbi, le32_to_cpu(F2FS_NODE_FOOTER(lpf)->ino), &ni);
 	ftype = map_de_type(le16_to_cpu(fnode->i.i_mode));
 	ret = f2fs_add_link(sbi, lpf, (unsigned char *)name, namelen,
-			    ino, ftype, ni.blk_addr, 0);
+			    ino, ftype, &ni.blk_addr, 0);
 	if (ret) {
 		ASSERT_MSG("Failed to add inode [0x%x] to lost+found", ino);
 		return -EINVAL;
@@ -2924,7 +2924,7 @@ static int fsck_do_reconnect_file(struct f2fs_sb_info *sbi,
 	fnode->i.i_namelen = cpu_to_le32(namelen);
 	fnode->i.i_pino = c.lpf_ino;
 	get_node_info(sbi, le32_to_cpu(F2FS_NODE_FOOTER(fnode)->ino), &ni);
-	ret = dev_write_block(fnode, ni.blk_addr);
+	ret = update_block(sbi, fnode, &ni.blk_addr, NULL);
 	ASSERT(ret >= 0);
 
 	DBG(1, "Reconnect inode [0x%x] to lost+found\n", ino);
@@ -2964,6 +2964,8 @@ static inline void release_block(struct f2fs_sb_info *sbi, u64 blkaddr,
 		offset = OFFSET_IN_SEG(sbi, blkaddr);
 		se->valid_blocks--;
 		f2fs_clear_bit(offset, (char *)se->cur_valid_map);
+		if (need_fsync_data_record(sbi))
+			f2fs_clear_bit(offset, (char *)se->ckpt_valid_map);
 		se->dirty = 1;
 		f2fs_clear_sit_bitmap(sbi, blkaddr);
 	}
@@ -3381,12 +3383,16 @@ void fsck_chk_and_fix_write_pointers(struct f2fs_sb_info *sbi)
 	if (c.zoned_model != F2FS_ZONED_HM)
 		return;
 
-	if (check_curseg_offsets(sbi, true) && c.fix_on) {
-		fix_curseg_info(sbi, true);
+	if (c.fix_on) {
+		flush_nat_journal_entries(sbi);
+		flush_sit_journal_entries(sbi);
+
+		if (check_curseg_offsets(sbi, true))
+			fix_curseg_info(sbi, true);
+
+		fix_wp_sit_alignment(sbi);
 		fsck->chk.wp_fixed = 1;
 	}
-
-	fix_wp_sit_alignment(sbi);
 }
 
 int fsck_chk_curseg_info(struct f2fs_sb_info *sbi)
@@ -3623,13 +3629,31 @@ int fsck_verify(struct f2fs_sb_info *sbi)
 		struct f2fs_super_block *sb = F2FS_RAW_SUPER(sbi);
 
 		if (force || c.bug_on || c.bug_nat_bits || c.quota_fixed) {
-			/* flush nats to write_nit_bits below */
-			flush_journal_entries(sbi);
+			if (c.zoned_model != F2FS_ZONED_HM) {
+				/* flush nats to write_nit_bits below */
+				flush_journal_entries(sbi);
+			}
 			fix_hard_links(sbi);
 			fix_nat_entries(sbi);
 			rewrite_sit_area_bitmap(sbi);
-			fix_wp_sit_alignment(sbi);
-			fix_curseg_info(sbi, false);
+			if (c.zoned_model == F2FS_ZONED_HM) {
+				struct curseg_info *curseg;
+				u64 ssa_blk;
+
+				for (i = 0; i < NO_CHECK_TYPE; i++) {
+					curseg = CURSEG_I(sbi, i);
+					ssa_blk = GET_SUM_BLKADDR(sbi,
+							curseg->segno);
+					ret = dev_write_block(curseg->sum_blk,
+							ssa_blk);
+					ASSERT(ret >= 0);
+				}
+				if (c.roll_forward)
+					restore_curseg_warm_node_info(sbi);
+				write_curseg_info(sbi);
+			} else {
+				fix_curseg_info(sbi, false);
+			}
 			fix_checksum(sbi);
 			fix_checkpoints(sbi);
 		} else if (is_set_ckpt_flags(cp, CP_FSCK_FLAG) ||
diff --git a/fsck/fsck.h b/fsck/fsck.h
index d6abf18..f5282e2 100644
--- a/fsck/fsck.h
+++ b/fsck/fsck.h
@@ -153,8 +153,7 @@ struct selabel_handle;
 
 static inline bool need_fsync_data_record(struct f2fs_sb_info *sbi)
 {
-	return !is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG) ||
-		c.zoned_model == F2FS_ZONED_HM;
+	return !is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG);
 }
 
 extern int fsck_chk_orphan_node(struct f2fs_sb_info *);
@@ -181,9 +180,10 @@ extern int fsck_chk_didnode_blk(struct f2fs_sb_info *, struct f2fs_inode *,
 		enum FILE_TYPE, struct f2fs_node *, u32 *,
 		struct f2fs_compr_blk_cnt *, struct child_info *);
 extern int fsck_chk_data_blk(struct f2fs_sb_info *, int,
-		u32, struct child_info *, int, enum FILE_TYPE, u32, u16, u8, int);
+		u32, struct child_info *, int, enum FILE_TYPE, u32, u16, u8,
+		int, struct f2fs_node *);
 extern int fsck_chk_dentry_blk(struct f2fs_sb_info *, int,
-		u32, struct child_info *, int, int);
+		u32, struct child_info *, int, int, struct f2fs_node *);
 int fsck_chk_inline_dentries(struct f2fs_sb_info *, struct f2fs_node *,
 		struct child_info *);
 void fsck_chk_checkpoint(struct f2fs_sb_info *sbi);
@@ -209,7 +209,9 @@ extern void rewrite_sit_area_bitmap(struct f2fs_sb_info *);
 extern void build_nat_area_bitmap(struct f2fs_sb_info *);
 extern void build_sit_area_bitmap(struct f2fs_sb_info *);
 extern int f2fs_set_main_bitmap(struct f2fs_sb_info *, u32, int);
+extern int f2fs_clear_main_bitmap(struct f2fs_sb_info *, u32);
 extern int f2fs_set_sit_bitmap(struct f2fs_sb_info *, u32);
+extern int f2fs_clear_sit_bitmap(struct f2fs_sb_info *, u32);
 extern void fsck_init(struct f2fs_sb_info *);
 extern int fsck_verify(struct f2fs_sb_info *);
 extern void fsck_free(struct f2fs_sb_info *);
@@ -225,13 +227,18 @@ extern void update_curseg_info(struct f2fs_sb_info *, int);
 extern void zero_journal_entries(struct f2fs_sb_info *);
 extern void flush_sit_entries(struct f2fs_sb_info *);
 extern void move_curseg_info(struct f2fs_sb_info *, u64, int);
+extern void move_one_curseg_info(struct f2fs_sb_info *sbi, u64 from, int left,
+				 int i);
 extern void write_curseg_info(struct f2fs_sb_info *);
+extern void save_curseg_warm_node_info(struct f2fs_sb_info *);
+extern void restore_curseg_warm_node_info(struct f2fs_sb_info *);
 extern int find_next_free_block(struct f2fs_sb_info *, u64 *, int, int, bool);
 extern void duplicate_checkpoint(struct f2fs_sb_info *);
 extern void write_checkpoint(struct f2fs_sb_info *);
 extern void write_checkpoints(struct f2fs_sb_info *);
 extern void update_superblock(struct f2fs_super_block *, int);
-extern void update_data_blkaddr(struct f2fs_sb_info *, nid_t, u16, block_t);
+extern void update_data_blkaddr(struct f2fs_sb_info *, nid_t, u16, block_t,
+			struct f2fs_node *);
 extern void update_nat_blkaddr(struct f2fs_sb_info *, nid_t, nid_t, block_t);
 
 extern void print_raw_sb_info(struct f2fs_super_block *);
@@ -294,6 +301,8 @@ void set_data_blkaddr(struct dnode_of_data *);
 block_t new_node_block(struct f2fs_sb_info *,
 					struct dnode_of_data *, unsigned int);
 int f2fs_rebuild_qf_inode(struct f2fs_sb_info *sbi, int qtype);
+int update_block(struct f2fs_sb_info *sbi, void *buf, u32 *blkaddr,
+					struct f2fs_node *node_blk);
 
 /* segment.c */
 struct quota_file;
@@ -321,7 +330,7 @@ int inode_set_selinux(struct f2fs_sb_info *, u32, const char *);
 int f2fs_find_path(struct f2fs_sb_info *, char *, nid_t *);
 nid_t f2fs_lookup(struct f2fs_sb_info *, struct f2fs_node *, u8 *, int);
 int f2fs_add_link(struct f2fs_sb_info *, struct f2fs_node *,
-		const unsigned char *, int, nid_t, int, block_t, int);
+		const unsigned char *, int, nid_t, int, block_t *, int);
 struct hardlink_cache_entry *f2fs_search_hardlink(struct f2fs_sb_info *sbi,
 						struct dentry *de);
 
@@ -332,6 +341,14 @@ void write_all_xattrs(struct f2fs_sb_info *sbi,
 
 /* dir.c */
 int convert_inline_dentry(struct f2fs_sb_info *sbi, struct f2fs_node *node,
-		block_t p_blkaddr);
+		block_t *p_blkaddr);
+
+/* node.c */
+int update_inode(struct f2fs_sb_info *sbi, struct f2fs_node *inode,
+		u32 *blkaddr);
+
+/* mount.c */
+int flush_nat_journal_entries(struct f2fs_sb_info *sbi);
+int flush_sit_journal_entries(struct f2fs_sb_info *sbi);
 
 #endif /* _FSCK_H_ */
diff --git a/fsck/main.c b/fsck/main.c
index 6d48d40..1affa72 100644
--- a/fsck/main.c
+++ b/fsck/main.c
@@ -834,6 +834,9 @@ static int do_fsck(struct f2fs_sb_info *sbi)
 
 	print_cp_state(flag);
 
+	if (c.roll_forward && c.zoned_model == F2FS_ZONED_HM)
+		save_curseg_warm_node_info(sbi);
+
 	fsck_chk_and_fix_write_pointers(sbi);
 
 	fsck_chk_curseg_info(sbi);
diff --git a/fsck/mount.c b/fsck/mount.c
index 72516f4..1e9762e 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -1986,7 +1986,7 @@ void reset_curseg(struct f2fs_sb_info *sbi, int type)
 	if (IS_NODESEG(type))
 		SET_SUM_TYPE(curseg->sum_blk, SUM_TYPE_NODE);
 	se = get_seg_entry(sbi, curseg->segno);
-	se->type = type;
+	se->type = se->orig_type = type;
 	se->dirty = 1;
 }
 
@@ -2327,7 +2327,6 @@ unsigned char get_seg_type(struct f2fs_sb_info *sbi, struct seg_entry *se)
 struct f2fs_summary_block *get_sum_block(struct f2fs_sb_info *sbi,
 				unsigned int segno, int *ret_type)
 {
-	struct f2fs_checkpoint *cp = F2FS_CKPT(sbi);
 	struct f2fs_summary_block *sum_blk;
 	struct curseg_info *curseg;
 	int type, ret;
@@ -2337,8 +2336,8 @@ struct f2fs_summary_block *get_sum_block(struct f2fs_sb_info *sbi,
 
 	ssa_blk = GET_SUM_BLKADDR(sbi, segno);
 	for (type = 0; type < NR_CURSEG_NODE_TYPE; type++) {
-		if (segno == get_cp(cur_node_segno[type])) {
-			curseg = CURSEG_I(sbi, CURSEG_HOT_NODE + type);
+		curseg = CURSEG_I(sbi, CURSEG_HOT_NODE + type);
+		if (segno == curseg->segno) {
 			if (!IS_SUM_NODE_SEG(curseg->sum_blk)) {
 				ASSERT_MSG("segno [0x%x] indicates a data "
 						"segment, but should be node",
@@ -2352,8 +2351,8 @@ struct f2fs_summary_block *get_sum_block(struct f2fs_sb_info *sbi,
 	}
 
 	for (type = 0; type < NR_CURSEG_DATA_TYPE; type++) {
-		if (segno == get_cp(cur_data_segno[type])) {
-			curseg = CURSEG_I(sbi, type);
+		curseg = CURSEG_I(sbi, type);
+		if (segno == curseg->segno) {
 			if (IS_SUM_NODE_SEG(curseg->sum_blk)) {
 				ASSERT_MSG("segno [0x%x] indicates a node "
 						"segment, but should be data",
@@ -2425,21 +2424,24 @@ static void get_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
 }
 
 void update_data_blkaddr(struct f2fs_sb_info *sbi, nid_t nid,
-				u16 ofs_in_node, block_t newaddr)
+		u16 ofs_in_node, block_t newaddr, struct f2fs_node *node_blk)
 {
-	struct f2fs_node *node_blk = NULL;
 	struct node_info ni;
 	block_t oldaddr, startaddr, endaddr;
+	bool node_blk_alloced = false;
 	int ret;
 
-	node_blk = (struct f2fs_node *)calloc(F2FS_BLKSIZE, 1);
-	ASSERT(node_blk);
+	if (node_blk == NULL) {
+		node_blk = (struct f2fs_node *)calloc(F2FS_BLKSIZE, 1);
+		ASSERT(node_blk);
 
-	get_node_info(sbi, nid, &ni);
+		get_node_info(sbi, nid, &ni);
 
-	/* read node_block */
-	ret = dev_read_block(node_blk, ni.blk_addr);
-	ASSERT(ret >= 0);
+		/* read node_block */
+		ret = dev_read_block(node_blk, ni.blk_addr);
+		ASSERT(ret >= 0);
+		node_blk_alloced = true;
+	}
 
 	/* check its block address */
 	if (IS_INODE(node_blk)) {
@@ -2447,33 +2449,46 @@ void update_data_blkaddr(struct f2fs_sb_info *sbi, nid_t nid,
 
 		oldaddr = le32_to_cpu(node_blk->i.i_addr[ofs + ofs_in_node]);
 		node_blk->i.i_addr[ofs + ofs_in_node] = cpu_to_le32(newaddr);
-		ret = write_inode(node_blk, ni.blk_addr);
-		ASSERT(ret >= 0);
+		if (node_blk_alloced) {
+			ret = update_inode(sbi, node_blk, &ni.blk_addr);
+			ASSERT(ret >= 0);
+		}
 	} else {
 		oldaddr = le32_to_cpu(node_blk->dn.addr[ofs_in_node]);
 		node_blk->dn.addr[ofs_in_node] = cpu_to_le32(newaddr);
-		ret = dev_write_block(node_blk, ni.blk_addr);
-		ASSERT(ret >= 0);
-	}
+		if (node_blk_alloced) {
+			ret = update_block(sbi, node_blk, &ni.blk_addr, NULL);
+			ASSERT(ret >= 0);
+		}
 
-	/* check extent cache entry */
-	if (!IS_INODE(node_blk)) {
-		get_node_info(sbi, le32_to_cpu(F2FS_NODE_FOOTER(node_blk)->ino), &ni);
+		/* change node_blk with inode to update extent cache entry */
+		get_node_info(sbi, le32_to_cpu(F2FS_NODE_FOOTER(node_blk)->ino),
+				&ni);
 
 		/* read inode block */
+		if (!node_blk_alloced) {
+			node_blk = (struct f2fs_node *)calloc(F2FS_BLKSIZE, 1);
+			ASSERT(node_blk);
+
+			node_blk_alloced = true;
+		}
 		ret = dev_read_block(node_blk, ni.blk_addr);
 		ASSERT(ret >= 0);
 	}
 
+	/* check extent cache entry */
 	startaddr = le32_to_cpu(node_blk->i.i_ext.blk_addr);
 	endaddr = startaddr + le32_to_cpu(node_blk->i.i_ext.len);
 	if (oldaddr >= startaddr && oldaddr < endaddr) {
 		node_blk->i.i_ext.len = 0;
 
 		/* update inode block */
-		ASSERT(write_inode(node_blk, ni.blk_addr) >= 0);
+		if (node_blk_alloced)
+			ASSERT(update_inode(sbi, node_blk, &ni.blk_addr) >= 0);
 	}
-	free(node_blk);
+
+	if (node_blk_alloced)
+		free(node_blk);
 }
 
 void update_nat_blkaddr(struct f2fs_sb_info *sbi, nid_t ino,
@@ -2744,7 +2759,7 @@ void rewrite_sit_area_bitmap(struct f2fs_sb_info *sbi)
 	free(sit_blk);
 }
 
-static int flush_sit_journal_entries(struct f2fs_sb_info *sbi)
+int flush_sit_journal_entries(struct f2fs_sb_info *sbi)
 {
 	struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA);
 	struct f2fs_journal *journal = F2FS_SUMMARY_BLOCK_JOURNAL(curseg->sum_blk);
@@ -2778,7 +2793,7 @@ static int flush_sit_journal_entries(struct f2fs_sb_info *sbi)
 	return i;
 }
 
-static int flush_nat_journal_entries(struct f2fs_sb_info *sbi)
+int flush_nat_journal_entries(struct f2fs_sb_info *sbi)
 {
 	struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
 	struct f2fs_journal *journal = F2FS_SUMMARY_BLOCK_JOURNAL(curseg->sum_blk);
@@ -2893,7 +2908,8 @@ void set_section_type(struct f2fs_sb_info *sbi, unsigned int segno, int type)
 	for (i = 0; i < sbi->segs_per_sec; i++) {
 		struct seg_entry *se = get_seg_entry(sbi, segno + i);
 
-		se->type = type;
+		se->type = se->orig_type = type;
+		se->dirty = 1;
 	}
 }
 
@@ -2943,6 +2959,17 @@ static bool write_pointer_at_zone_start(struct f2fs_sb_info *UNUSED(sbi),
 
 #endif
 
+static void zero_journal_entries_with_type(struct f2fs_sb_info *sbi, int type)
+{
+	struct f2fs_journal *journal =
+		F2FS_SUMMARY_BLOCK_JOURNAL(CURSEG_I(sbi, type)->sum_blk);
+
+	if (type == CURSEG_HOT_DATA)
+		journal->n_nats = 0;
+	else if (type == CURSEG_COLD_DATA)
+		journal->n_sits = 0;
+}
+
 int find_next_free_block(struct f2fs_sb_info *sbi, u64 *to, int left,
 						int want_type, bool new_sec)
 {
@@ -2954,6 +2981,49 @@ int find_next_free_block(struct f2fs_sb_info *sbi, u64 *to, int left,
 	u64 end_blkaddr = (get_sb(segment_count_main) <<
 			get_sb(log_blocks_per_seg)) + get_sb(main_blkaddr);
 
+	if (c.zoned_model == F2FS_ZONED_HM && !new_sec) {
+		struct curseg_info *curseg = CURSEG_I(sbi, want_type);
+		unsigned int segs_per_zone = sbi->segs_per_sec * sbi->secs_per_zone;
+		char buf[F2FS_BLKSIZE];
+		u64 ssa_blk;
+		int ret;
+
+		*to = NEXT_FREE_BLKADDR(sbi, curseg);
+		curseg->next_blkoff++;
+
+		if (curseg->next_blkoff == sbi->blocks_per_seg) {
+			segno = curseg->segno + 1;
+			if (!(segno % segs_per_zone)) {
+				u64 new_blkaddr = SM_I(sbi)->main_blkaddr;
+
+				ret = find_next_free_block(sbi, &new_blkaddr, 0,
+						want_type, true);
+				if (ret)
+					return ret;
+				segno = GET_SEGNO(sbi, new_blkaddr);
+			}
+
+			ssa_blk = GET_SUM_BLKADDR(sbi, curseg->segno);
+			ret = dev_write_block(curseg->sum_blk, ssa_blk);
+			ASSERT(ret >= 0);
+
+			curseg->segno = segno;
+			curseg->next_blkoff = 0;
+			curseg->alloc_type = LFS;
+
+			ssa_blk = GET_SUM_BLKADDR(sbi, curseg->segno);
+			ret = dev_read_block(&buf, ssa_blk);
+			ASSERT(ret >= 0);
+
+			memcpy(curseg->sum_blk, &buf, SUM_ENTRIES_SIZE);
+
+			reset_curseg(sbi, want_type);
+			zero_journal_entries_with_type(sbi, want_type);
+		}
+
+		return 0;
+	}
+
 	if (*to > 0)
 		*to -= left;
 	if (SM_I(sbi)->free_segments <= SM_I(sbi)->reserved_segments + 1)
@@ -3013,7 +3083,7 @@ next_segment:
 	return -1;
 }
 
-static void move_one_curseg_info(struct f2fs_sb_info *sbi, u64 from, int left,
+void move_one_curseg_info(struct f2fs_sb_info *sbi, u64 from, int left,
 				 int i)
 {
 	struct f2fs_super_block *sb = F2FS_RAW_SUPER(sbi);
@@ -3061,6 +3131,8 @@ bypass_ssa:
 
 	/* update se->types */
 	reset_curseg(sbi, i);
+	if (c.zoned_model == F2FS_ZONED_HM)
+		zero_journal_entries_with_type(sbi, i);
 
 	FIX_MSG("Move curseg[%d] %x -> %x after %"PRIx64"\n",
 		i, old_segno, curseg->segno, from);
@@ -3111,6 +3183,26 @@ void write_curseg_info(struct f2fs_sb_info *sbi)
 	}
 }
 
+void save_curseg_warm_node_info(struct f2fs_sb_info *sbi)
+{
+	struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
+	struct curseg_info *saved_curseg = &SM_I(sbi)->saved_curseg_warm_node;
+
+	saved_curseg->alloc_type = curseg->alloc_type;
+	saved_curseg->segno = curseg->segno;
+	saved_curseg->next_blkoff = curseg->next_blkoff;
+}
+
+void restore_curseg_warm_node_info(struct f2fs_sb_info *sbi)
+{
+	struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
+	struct curseg_info *saved_curseg = &SM_I(sbi)->saved_curseg_warm_node;
+
+	curseg->alloc_type = saved_curseg->alloc_type;
+	curseg->segno = saved_curseg->segno;
+	curseg->next_blkoff = saved_curseg->next_blkoff;
+}
+
 int lookup_nat_in_journal(struct f2fs_sb_info *sbi, u32 nid,
 					struct f2fs_nat_entry *raw_nat)
 {
@@ -3280,6 +3372,9 @@ void write_checkpoint(struct f2fs_sb_info *sbi)
 		struct curseg_info *curseg = CURSEG_I(sbi, i);
 		u64 ssa_blk;
 
+		if (!(flags & CP_UMOUNT_FLAG) && IS_NODESEG(i))
+			continue;
+
 		ret = dev_write_block(curseg->sum_blk, cp_blk_no++);
 		ASSERT(ret >= 0);
 
diff --git a/fsck/node.c b/fsck/node.c
index d53756d..7f062f0 100644
--- a/fsck/node.c
+++ b/fsck/node.c
@@ -69,6 +69,8 @@ int f2fs_rebuild_qf_inode(struct f2fs_sb_info *sbi, int qtype)
 	F2FS_NODE_FOOTER(raw_node)->cp_ver = cpu_to_le64(cp_ver);
 
 	get_node_info(sbi, ino, &ni);
+	if (ni.ino != ino)
+		ni.version = 0;
 	set_summary(&sum, ino, 0, ni.version);
 	ret = reserve_new_block(sbi, &blkaddr, &sum, CURSEG_HOT_NODE, 1);
 	if (ret) {
@@ -255,6 +257,7 @@ int get_dnode_of_data(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
 	block_t nblk[4];
 	struct node_info ni;
 	int level, i;
+	bool parent_alloced = false;
 	int ret;
 
 	level = get_node_path(dn->inode_blk, index, offset, noffset);
@@ -274,6 +277,14 @@ int get_dnode_of_data(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
 			f2fs_alloc_nid(sbi, &nids[i]);
 
 			dn->nid = nids[i];
+			set_nid(parent, offset[i - 1], nids[i], i == 1);
+
+			/* Parent node has changed */
+			if (!parent_alloced)
+				ret = update_block(sbi, parent, &nblk[i - 1], NULL);
+			else
+				ret = dev_write_block(parent, nblk[i - 1]);
+			ASSERT(ret >= 0);
 
 			/* Function new_node_blk get a new f2fs_node blk and update*/
 			/* We should make sure that dn->node_blk == NULL*/
@@ -284,7 +295,9 @@ int get_dnode_of_data(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
 				return -EINVAL;
 			}
 
-			set_nid(parent, offset[i - 1], nids[i], i == 1);
+			parent_alloced = true;
+			if (i == level)
+				dn->alloced = 1;
 		} else {
 			/* If Sparse file no read API, */
 			struct node_info ni;
@@ -299,11 +312,6 @@ int get_dnode_of_data(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
 			nblk[i] = ni.blk_addr;
 		}
 
-		if (mode == ALLOC_NODE){
-			/* Parent node may have changed */
-			ret = dev_write_block(parent, nblk[i - 1]);
-			ASSERT(ret >= 0);
-		}
 		if (i != 1)
 			free(parent);
 
@@ -319,3 +327,13 @@ int get_dnode_of_data(struct f2fs_sb_info *sbi, struct dnode_of_data *dn,
 	dn->node_blkaddr = nblk[level];
 	return 0;
 }
+
+int update_inode(struct f2fs_sb_info *sbi, struct f2fs_node *inode,
+				u32 *blkaddr)
+{
+	if (c.feature & cpu_to_le32(F2FS_FEATURE_INODE_CHKSUM))
+		inode->i.i_inode_checksum =
+			cpu_to_le32(f2fs_inode_chksum(inode));
+	return update_block(sbi, inode, blkaddr, NULL);
+}
+
diff --git a/fsck/node.h b/fsck/node.h
index ac0e7b3..19f1e57 100644
--- a/fsck/node.h
+++ b/fsck/node.h
@@ -99,6 +99,7 @@ static inline void set_new_dnode(struct dnode_of_data *dn,
 	dn->nid = nid;
 	dn->idirty = 0;
 	dn->ndirty = 0;
+	dn->alloced = 0;
 }
 
 static inline void inc_inode_blocks(struct dnode_of_data *dn)
diff --git a/fsck/resize.c b/fsck/resize.c
index a3424b4..049ddd3 100644
--- a/fsck/resize.c
+++ b/fsck/resize.c
@@ -196,7 +196,7 @@ static void migrate_main(struct f2fs_sb_info *sbi, unsigned int offset)
 
 			if (IS_DATASEG(se->type))
 				update_data_blkaddr(sbi, le32_to_cpu(sum.nid),
-					le16_to_cpu(sum.ofs_in_node), to);
+					le16_to_cpu(sum.ofs_in_node), to, NULL);
 			else
 				update_nat_blkaddr(sbi, 0,
 						le32_to_cpu(sum.nid), to);
diff --git a/fsck/segment.c b/fsck/segment.c
index 934004e..9bea105 100644
--- a/fsck/segment.c
+++ b/fsck/segment.c
@@ -267,6 +267,7 @@ static u64 f2fs_write_ex(struct f2fs_sb_info *sbi, nid_t ino, u8 *buffer,
 	struct node_info ni;
 	struct f2fs_node *inode;
 	char *blk_buffer;
+	void *wbuf;
 	u64 off_in_blk;
 	u64 len_in_blk;
 	u64 written_count;
@@ -274,7 +275,8 @@ static u64 f2fs_write_ex(struct f2fs_sb_info *sbi, nid_t ino, u8 *buffer,
 	block_t blkaddr;
 	void* index_node = NULL;
 	int idirty = 0;
-	int err;
+	int err, ret;
+	bool datablk_alloced = false;
 	bool has_data = (addr_type == WR_NORMAL
 			|| addr_type == WR_COMPRESS_DATA);
 
@@ -323,13 +325,18 @@ static u64 f2fs_write_ex(struct f2fs_sb_info *sbi, nid_t ino, u8 *buffer,
 			dn.data_blkaddr = addr_type;
 			set_data_blkaddr(&dn);
 			idirty |= dn.idirty;
-			if (dn.ndirty)
-				ASSERT(dev_write_block(dn.node_blk,
-						dn.node_blkaddr) >= 0);
+			if (dn.ndirty) {
+				ret = dn.alloced ? dev_write_block(dn.node_blk,
+					dn.node_blkaddr) :
+					update_block(sbi, dn.node_blk,
+					&dn.node_blkaddr, NULL);
+				ASSERT(ret >= 0);
+			}
 			written_count = 0;
 			break;
 		}
 
+		datablk_alloced = false;
 		blkaddr = datablock_addr(dn.node_blk, dn.ofs_in_node);
 		if (blkaddr == NULL_ADDR || blkaddr == NEW_ADDR) {
 			err = new_data_block(sbi, blk_buffer,
@@ -338,6 +345,7 @@ static u64 f2fs_write_ex(struct f2fs_sb_info *sbi, nid_t ino, u8 *buffer,
 				break;
 			blkaddr = dn.data_blkaddr;
 			idirty |= dn.idirty;
+			datablk_alloced = true;
 		}
 
 		off_in_blk = offset % F2FS_BLKSIZE;
@@ -349,29 +357,50 @@ static u64 f2fs_write_ex(struct f2fs_sb_info *sbi, nid_t ino, u8 *buffer,
 		if (len_in_blk < F2FS_BLKSIZE) {
 			ASSERT(dev_read_block(blk_buffer, blkaddr) >= 0);
 			memcpy(blk_buffer + off_in_blk, buffer, len_in_blk);
-			ASSERT(dev_write_block(blk_buffer, blkaddr) >= 0);
+			wbuf = blk_buffer;
 		} else {
 			/* Direct write */
-			ASSERT(dev_write_block(buffer, blkaddr) >= 0);
+			wbuf = buffer;
 		}
 
+		if (c.zoned_model == F2FS_ZONED_HM) {
+			if (datablk_alloced) {
+				ret = dev_write_block(wbuf, blkaddr);
+			} else {
+				ret = update_block(sbi, wbuf, &blkaddr,
+						dn.node_blk);
+				if (dn.inode_blk == dn.node_blk)
+					idirty = 1;
+				else
+					dn.ndirty = 1;
+			}
+		} else {
+			ret = dev_write_block(wbuf, blkaddr);
+		}
+		ASSERT(ret >= 0);
+
 		offset += len_in_blk;
 		count -= len_in_blk;
 		buffer += len_in_blk;
 		written_count += len_in_blk;
 
 		dn.ofs_in_node++;
-		if ((--remained_blkentries == 0 || count == 0) && (dn.ndirty))
-			ASSERT(dev_write_block(dn.node_blk, dn.node_blkaddr)
-					>= 0);
+		if ((--remained_blkentries == 0 || count == 0) && (dn.ndirty)) {
+			ret = dn.alloced ?
+				dev_write_block(dn.node_blk, dn.node_blkaddr) :
+				update_block(sbi, dn.node_blk, &dn.node_blkaddr, NULL);
+			ASSERT(ret >= 0);
+		}
 	}
+
 	if (addr_type == WR_NORMAL && offset > le64_to_cpu(inode->i.i_size)) {
 		inode->i.i_size = cpu_to_le64(offset);
 		idirty = 1;
 	}
 	if (idirty) {
+		get_node_info(sbi, ino, &ni);
 		ASSERT(inode == dn.inode_blk);
-		ASSERT(write_inode(inode, ni.blk_addr) >= 0);
+		ASSERT(update_inode(sbi, inode, &ni.blk_addr) >= 0);
 	}
 
 	free(index_node);
@@ -416,7 +445,7 @@ void f2fs_filesize_update(struct f2fs_sb_info *sbi, nid_t ino, u64 filesize)
 
 	inode->i.i_size = cpu_to_le64(filesize);
 
-	ASSERT(write_inode(inode, ni.blk_addr) >= 0);
+	ASSERT(update_inode(sbi, inode, &ni.blk_addr) >= 0);
 	free(inode);
 }
 
@@ -560,7 +589,7 @@ exit:
 		copy_extent_info(&largest_ext, &cur_ext);
 	if (largest_ext.len > 0) {
 		update_extent_info(inode, &largest_ext);
-		ASSERT(write_inode(inode, ni.blk_addr) >= 0);
+		ASSERT(update_inode(sbi, inode, &ni.blk_addr) >= 0);
 	}
 
 	if (index_node)
@@ -620,7 +649,7 @@ int f2fs_build_file(struct f2fs_sb_info *sbi, struct dentry *de)
 		ASSERT((unsigned long)n == de->size);
 		memcpy(inline_data_addr(node_blk), buffer, de->size);
 		node_blk->i.i_size = cpu_to_le64(de->size);
-		ASSERT(write_inode(node_blk, ni.blk_addr) >= 0);
+		ASSERT(update_inode(sbi, node_blk, &ni.blk_addr) >= 0);
 		free(node_blk);
 #ifdef WITH_SLOAD
 	} else if (c.func == SLOAD && c.compress.enabled &&
@@ -642,7 +671,7 @@ int f2fs_build_file(struct f2fs_sb_info *sbi, struct dentry *de)
 		node_blk->i.i_flags = cpu_to_le32(F2FS_COMPR_FL);
 		if (c.compress.readonly)
 			node_blk->i.i_inline |= F2FS_COMPRESS_RELEASED;
-		ASSERT(write_inode(node_blk, ni.blk_addr) >= 0);
+		ASSERT(update_inode(sbi, node_blk, &ni.blk_addr) >= 0);
 
 		while (!eof && (n = bulkread(fd, rbuf, c.compress.cc.rlen,
 				&eof)) > 0) {
@@ -690,7 +719,7 @@ int f2fs_build_file(struct f2fs_sb_info *sbi, struct dentry *de)
 			node_blk->i.i_compr_blocks = cpu_to_le64(cblocks);
 			node_blk->i.i_blocks += cpu_to_le64(cblocks);
 		}
-		ASSERT(write_inode(node_blk, ni.blk_addr) >= 0);
+		ASSERT(update_inode(sbi, node_blk, &ni.blk_addr) >= 0);
 		free(node_blk);
 
 		if (!c.compress.readonly) {
@@ -725,3 +754,64 @@ int f2fs_build_file(struct f2fs_sb_info *sbi, struct dentry *de)
 		de->uid, de->gid, de->capabilities, de->size, de->pino);
 	return 0;
 }
+
+int update_block(struct f2fs_sb_info *sbi, void *buf, u32 *blkaddr,
+		struct f2fs_node *node_blk)
+{
+	struct seg_entry *se;
+	struct f2fs_summary sum;
+	u64 new_blkaddr, old_blkaddr = *blkaddr, offset;
+	int ret, type;
+
+	if (c.zoned_model != F2FS_ZONED_HM)
+		return dev_write_block(buf, old_blkaddr);
+
+	/* update sit bitmap & valid_blocks && se->type for old block*/
+	se = get_seg_entry(sbi, GET_SEGNO(sbi, old_blkaddr));
+	offset = OFFSET_IN_SEG(sbi, old_blkaddr);
+	type = se->type;
+	se->valid_blocks--;
+	f2fs_clear_bit(offset, (char *)se->cur_valid_map);
+	if (need_fsync_data_record(sbi))
+		f2fs_clear_bit(offset, (char *)se->ckpt_valid_map);
+	se->dirty = 1;
+	f2fs_clear_main_bitmap(sbi, old_blkaddr);
+	f2fs_clear_sit_bitmap(sbi, old_blkaddr);
+
+	new_blkaddr = SM_I(sbi)->main_blkaddr;
+	if (find_next_free_block(sbi, &new_blkaddr, 0, type, false)) {
+		ERR_MSG("Can't find free block for the update");
+		ASSERT(0);
+	}
+
+	ret = dev_write_block(buf, new_blkaddr);
+	ASSERT(ret >= 0);
+
+	*blkaddr = new_blkaddr;
+
+	/* update sit bitmap & valid_blocks && se->type for new block */
+	se = get_seg_entry(sbi, GET_SEGNO(sbi, new_blkaddr));
+	offset = OFFSET_IN_SEG(sbi, new_blkaddr);
+	se->type = se->orig_type = type;
+	se->valid_blocks++;
+	f2fs_set_bit(offset, (char *)se->cur_valid_map);
+	if (need_fsync_data_record(sbi))
+		f2fs_set_bit(offset, (char *)se->ckpt_valid_map);
+	se->dirty = 1;
+	f2fs_set_main_bitmap(sbi, new_blkaddr, type);
+	f2fs_set_sit_bitmap(sbi, new_blkaddr);
+
+	/* update SSA */
+	get_sum_entry(sbi, old_blkaddr, &sum);
+	update_sum_entry(sbi, new_blkaddr, &sum);
+
+	if (IS_DATASEG(type)) {
+		update_data_blkaddr(sbi, le32_to_cpu(sum.nid),
+				le16_to_cpu(sum.ofs_in_node), new_blkaddr, node_blk);
+	} else
+		update_nat_blkaddr(sbi, 0, le32_to_cpu(sum.nid), new_blkaddr);
+
+	DBG(1, "Update %s block %"PRIx64" -> %"PRIx64"\n",
+		IS_DATASEG(type) ? "data" : "node", old_blkaddr, new_blkaddr);
+	return ret;
+}
diff --git a/fsck/xattr.c b/fsck/xattr.c
index 3163639..241e339 100644
--- a/fsck/xattr.c
+++ b/fsck/xattr.c
@@ -94,6 +94,7 @@ void write_all_xattrs(struct f2fs_sb_info *sbi,
 	nid_t xnid = le32_to_cpu(inode->i.i_xattr_nid);
 	u64 inline_size = inline_xattr_size(&inode->i);
 	int ret;
+	bool xattrblk_alloced = false;
 
 	memcpy(inline_xattr_addr(&inode->i), txattr_addr, inline_size);
 
@@ -109,6 +110,7 @@ void write_all_xattrs(struct f2fs_sb_info *sbi,
 		ASSERT(dn.node_blk);
 		xattr_node = dn.node_blk;
 		inode->i.i_xattr_nid = cpu_to_le32(new_nid);
+		xattrblk_alloced = true;
 	} else {
 		set_new_dnode(&dn, inode, NULL, xnid);
 		get_node_info(sbi, xnid, &ni);
@@ -125,7 +127,8 @@ void write_all_xattrs(struct f2fs_sb_info *sbi,
 	memcpy(xattr_addr, txattr_addr + inline_size,
 			F2FS_BLKSIZE - sizeof(struct node_footer));
 
-	ret = dev_write_block(xattr_node, blkaddr);
+	ret = xattrblk_alloced ? dev_write_block(xattr_node, blkaddr) :
+		update_block(sbi, xattr_node, &blkaddr, NULL);
 
 free_xattr_node:
 	free(xattr_node);
@@ -250,7 +253,7 @@ int f2fs_setxattr(struct f2fs_sb_info *sbi, nid_t ino, int index, const char *na
 	write_all_xattrs(sbi, inode, new_hsize, base_addr);
 
 	/* inode need update */
-	ASSERT(write_inode(inode, ni.blk_addr) >= 0);
+	ASSERT(update_inode(sbi, inode, &ni.blk_addr) >= 0);
 exit:
 	free(inode);
 	free(base_addr);
diff --git a/lib/libf2fs.c b/lib/libf2fs.c
index 995e42d..624cf57 100644
--- a/lib/libf2fs.c
+++ b/lib/libf2fs.c
@@ -919,6 +919,7 @@ int get_device_info(int i)
 	unsigned char model_inq[6] = {MODELINQUIRY};
 #endif
 	struct device_info *dev = c.devices + i;
+	int flags = O_RDWR;
 
 	if (c.sparse_mode) {
 		fd = open(dev->path, O_RDWR | O_CREAT | O_BINARY, 0644);
@@ -934,20 +935,33 @@ int get_device_info(int i)
 	stat_buf = malloc(sizeof(struct stat));
 	ASSERT(stat_buf);
 
-	if (!c.sparse_mode) {
-		if (stat(dev->path, stat_buf) < 0 ) {
-			MSG(0, "\tError: Failed to get the device stat!\n");
+	if (stat(dev->path, stat_buf) < 0) {
+		MSG(0, "\tError: Failed to get the device stat!\n");
+		free(stat_buf);
+		return -1;
+	}
+
+#ifdef __linux__
+	if (S_ISBLK(stat_buf->st_mode)) {
+		if (f2fs_get_zoned_model(i) < 0) {
 			free(stat_buf);
 			return -1;
 		}
+	}
+#endif
+
+	if (!c.sparse_mode) {
+		if (dev->zoned_model == F2FS_ZONED_HM && c.func == FSCK)
+			flags |= O_DSYNC;
 
 		if (S_ISBLK(stat_buf->st_mode) &&
 				!c.force && c.func != DUMP && !c.dry_run) {
-			fd = open(dev->path, O_RDWR | O_EXCL);
+			flags |= O_EXCL;
+			fd = open(dev->path, flags);
 			if (fd < 0)
 				fd = open_check_fs(dev->path, O_EXCL);
 		} else {
-			fd = open(dev->path, O_RDWR);
+			fd = open(dev->path, flags);
 			if (fd < 0)
 				fd = open_check_fs(dev->path, 0);
 		}
@@ -1047,13 +1061,6 @@ int get_device_info(int i)
 	}
 
 #ifdef __linux__
-	if (S_ISBLK(stat_buf->st_mode)) {
-		if (f2fs_get_zoned_model(i) < 0) {
-			free(stat_buf);
-			return -1;
-		}
-	}
-
 	if (dev->zoned_model != F2FS_ZONED_NONE) {
 
 		/* Get the number of blocks per zones */
@@ -1104,6 +1111,7 @@ int get_device_info(int i)
 		}
 	}
 #endif
+
 	/* adjust wanted_total_sectors */
 	if (c.wanted_total_sectors != -1) {
 		MSG(0, "Info: wanted sectors = %"PRIu64" (in %"PRIu64" bytes)\n",
-- 
2.43.0.rc2.451.g8631bc7472-goog

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