f2fs: support recording errors into superblock

This patch supports to record detail reason of FSCORRUPTED error into
f2fs_super_block.s_errors[].
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/compress.c

@@ -762,6 +762,7 @@ void f2fs_decompress_cluster(struct decompress_io_ctx *dic, bool in_task)
 
 	if (dic->clen > PAGE_SIZE * dic->nr_cpages - COMPRESS_HEADER_SIZE) {
 		ret = -EFSCORRUPTED;
+		f2fs_handle_error(sbi, ERROR_FAIL_DECOMPRESSION);
 		goto out_release;
 	}
 
@@ -950,6 +951,7 @@ static int __f2fs_cluster_blocks(struct inode *inode,
 
 	if (f2fs_sanity_check_cluster(&dn)) {
 		ret = -EFSCORRUPTED;
+		f2fs_handle_error(F2FS_I_SB(inode), ERROR_CORRUPTED_CLUSTER);
 		goto fail;
 	}
 

fs/f2fs/data.c

@@ -705,8 +705,10 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
 
 	if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
 			fio->is_por ? META_POR : (__is_meta_io(fio) ?
-			META_GENERIC : DATA_GENERIC_ENHANCE)))
+			META_GENERIC : DATA_GENERIC_ENHANCE))) {
+		f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
 		return -EFSCORRUPTED;
+	}
 
 	trace_f2fs_submit_page_bio(page, fio);
 
@@ -906,8 +908,10 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio)
 			fio->encrypted_page : fio->page;
 
 	if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
-			__is_meta_io(fio) ? META_GENERIC : DATA_GENERIC))
+			__is_meta_io(fio) ? META_GENERIC : DATA_GENERIC)) {
+		f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
 		return -EFSCORRUPTED;
+	}
 
 	trace_f2fs_submit_page_bio(page, fio);
 
@@ -1217,6 +1221,8 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 		if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE_READ)) {
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(F2FS_I_SB(inode),
+						ERROR_INVALID_BLKADDR);
 			goto put_err;
 		}
 		goto got_it;
@@ -1237,6 +1243,8 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
 						dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE)) {
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(F2FS_I_SB(inode),
+					ERROR_INVALID_BLKADDR);
 		goto put_err;
 	}
 got_it:
@@ -1550,6 +1558,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 	if (__is_valid_data_blkaddr(blkaddr) &&
 		!f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 		goto sync_out;
 	}
 
@@ -1595,6 +1604,8 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 					(flag != F2FS_GET_BLOCK_FIEMAP ||
 					IS_ENABLED(CONFIG_F2FS_CHECK_FS))) {
 				err = -EFSCORRUPTED;
+				f2fs_handle_error(sbi,
+						ERROR_CORRUPTED_CLUSTER);
 				goto sync_out;
 			}
 			if (flag == F2FS_GET_BLOCK_BMAP) {
@@ -2076,6 +2087,8 @@ static int f2fs_read_single_page(struct inode *inode, struct page *page,
 		if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), block_nr,
 						DATA_GENERIC_ENHANCE_READ)) {
 			ret = -EFSCORRUPTED;
+			f2fs_handle_error(F2FS_I_SB(inode),
+						ERROR_INVALID_BLKADDR);
 			goto out;
 		}
 	} else {
@@ -2619,8 +2632,11 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
 		fio->old_blkaddr = ei.blk + page->index - ei.fofs;
 
 		if (!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
-						DATA_GENERIC_ENHANCE))
+						DATA_GENERIC_ENHANCE)) {
+			f2fs_handle_error(fio->sbi,
+						ERROR_INVALID_BLKADDR);
 			return -EFSCORRUPTED;
+		}
 
 		ipu_force = true;
 		fio->need_lock = LOCK_DONE;
@@ -2648,6 +2664,7 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
 		!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
 						DATA_GENERIC_ENHANCE)) {
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
 		goto out_writepage;
 	}
 
@@ -3561,6 +3578,7 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
 		if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
 				DATA_GENERIC_ENHANCE_READ)) {
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto fail;
 		}
 		err = f2fs_submit_page_read(inode, page, blkaddr, 0, true);

fs/f2fs/dir.c

@@ -1041,6 +1041,7 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
 				  __func__, le16_to_cpu(de->name_len));
 			set_sbi_flag(sbi, SBI_NEED_FSCK);
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_CORRUPTED_DIRENT);
 			goto out;
 		}
 

fs/f2fs/f2fs.h

@@ -1815,6 +1815,10 @@ struct f2fs_sb_info {
 
 	struct workqueue_struct *post_read_wq;	/* post read workqueue */
 
+	unsigned char errors[MAX_F2FS_ERRORS];	/* error flags */
+	spinlock_t error_lock;			/* protect errors array */
+	bool error_dirty;			/* errors of sb is dirty */
+
 	struct kmem_cache *inline_xattr_slab;	/* inline xattr entry */
 	unsigned int inline_xattr_slab_size;	/* default inline xattr slab size */
 
@@ -3557,6 +3561,7 @@ int f2fs_quota_sync(struct super_block *sb, int type);
 loff_t max_file_blocks(struct inode *inode);
 void f2fs_quota_off_umount(struct super_block *sb);
 void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason);
+void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
 int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
 int f2fs_sync_fs(struct super_block *sb, int sync);
 int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);

fs/f2fs/file.c

@@ -1156,6 +1156,7 @@ static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
 			!f2fs_is_valid_blkaddr(sbi, *blkaddr,
 					DATA_GENERIC_ENHANCE)) {
 			f2fs_put_dnode(&dn);
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			return -EFSCORRUPTED;
 		}
 
@@ -1440,6 +1441,7 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
 		if (!f2fs_is_valid_blkaddr(sbi, dn->data_blkaddr,
 					DATA_GENERIC_ENHANCE)) {
 			ret = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			break;
 		}
 
@@ -3323,9 +3325,11 @@ static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
 		if (!__is_valid_data_blkaddr(blkaddr))
 			continue;
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
-					DATA_GENERIC_ENHANCE)))
+					DATA_GENERIC_ENHANCE))) {
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			return -EFSCORRUPTED;
 		}
+	}
 
 	while (count) {
 		int compr_blocks = 0;
@@ -3485,9 +3489,11 @@ static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
 		if (!__is_valid_data_blkaddr(blkaddr))
 			continue;
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
-					DATA_GENERIC_ENHANCE)))
+					DATA_GENERIC_ENHANCE))) {
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			return -EFSCORRUPTED;
 		}
+	}
 
 	while (count) {
 		int compr_blocks = 0;
@@ -3758,6 +3764,8 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
 						DATA_GENERIC_ENHANCE)) {
 				ret = -EFSCORRUPTED;
 				f2fs_put_dnode(&dn);
+				f2fs_handle_error(sbi,
+						ERROR_INVALID_BLKADDR);
 				goto out;
 			}
 

fs/f2fs/gc.c

@@ -1164,6 +1164,7 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
 		if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE_READ))) {
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto put_page;
 		}
 		goto got_it;
@@ -1182,6 +1183,7 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
 	if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
 						DATA_GENERIC_ENHANCE))) {
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 		goto put_page;
 	}
 got_it:

fs/f2fs/inline.c

@@ -160,6 +160,7 @@ int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page)
 		set_sbi_flag(fio.sbi, SBI_NEED_FSCK);
 		f2fs_warn(fio.sbi, "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
 			  __func__, dn->inode->i_ino, dn->data_blkaddr);
+		f2fs_handle_error(fio.sbi, ERROR_INVALID_BLKADDR);
 		return -EFSCORRUPTED;
 	}
 
@@ -412,6 +413,7 @@ static int f2fs_move_inline_dirents(struct inode *dir, struct page *ipage,
 		set_sbi_flag(F2FS_P_SB(page), SBI_NEED_FSCK);
 		f2fs_warn(F2FS_P_SB(page), "%s: corrupted inline inode ino=%lx, i_addr[0]:0x%x, run fsck to fix.",
 			  __func__, dir->i_ino, dn.data_blkaddr);
+		f2fs_handle_error(F2FS_P_SB(page), ERROR_INVALID_BLKADDR);
 		err = -EFSCORRUPTED;
 		goto out;
 	}

fs/f2fs/inode.c

@@ -81,8 +81,10 @@ static int __written_first_block(struct f2fs_sb_info *sbi,
 
 	if (!__is_valid_data_blkaddr(addr))
 		return 1;
-	if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE))
+	if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) {
+		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 		return -EFSCORRUPTED;
+	}
 	return 0;
 }
 
@@ -415,6 +417,7 @@ static int do_read_inode(struct inode *inode)
 
 	if (!sanity_check_inode(inode, node_page)) {
 		f2fs_put_page(node_page, 1);
+		f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
 		return -EFSCORRUPTED;
 	}
 
@@ -510,6 +513,7 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
 			ret = -EFSCORRUPTED;
 			trace_f2fs_iget_exit(inode, ret);
 			iput(inode);
+			f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
 			return ERR_PTR(ret);
 		}
 

fs/f2fs/node.c

@@ -36,6 +36,7 @@ int f2fs_check_nid_range(struct f2fs_sb_info *sbi, nid_t nid)
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
 		f2fs_warn(sbi, "%s: out-of-range nid=%x, run fsck to fix.",
 			  __func__, nid);
+		f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
 		return -EFSCORRUPTED;
 	}
 	return 0;
@@ -1295,6 +1296,7 @@ struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs)
 	if (unlikely(new_ni.blk_addr != NULL_ADDR)) {
 		err = -EFSCORRUPTED;
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 		goto fail;
 	}
 #endif

fs/f2fs/recovery.c

@@ -507,6 +507,7 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info *sbi,
 	if (ofs_in_node >= max_addrs) {
 		f2fs_err(sbi, "Inconsistent ofs_in_node:%u in summary, ino:%lu, nid:%u, max:%u",
 			ofs_in_node, dn->inode->i_ino, nid, max_addrs);
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_SUMMARY);
 		return -EFSCORRUPTED;
 	}
 
@@ -637,6 +638,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 			  inode->i_ino, ofs_of_node(dn.node_page),
 			  ofs_of_node(page));
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_FOOTER);
 		goto err;
 	}
 
@@ -649,12 +651,14 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 		if (__is_valid_data_blkaddr(src) &&
 			!f2fs_is_valid_blkaddr(sbi, src, META_POR)) {
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto err;
 		}
 
 		if (__is_valid_data_blkaddr(dest) &&
 			!f2fs_is_valid_blkaddr(sbi, dest, META_POR)) {
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
 			goto err;
 		}
 
@@ -712,6 +716,8 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 				f2fs_err(sbi, "Inconsistent dest blkaddr:%u, ino:%lu, ofs:%u",
 					dest, inode->i_ino, dn.ofs_in_node);
 				err = -EFSCORRUPTED;
+				f2fs_handle_error(sbi,
+						ERROR_INVALID_BLKADDR);
 				goto err;
 			}
 

fs/f2fs/segment.c

@@ -312,6 +312,8 @@ static int __f2fs_commit_atomic_write(struct inode *inode)
 					DATA_GENERIC_ENHANCE)) {
 				f2fs_put_dnode(&dn);
 				ret = -EFSCORRUPTED;
+				f2fs_handle_error(sbi,
+						ERROR_INVALID_BLKADDR);
 				goto out;
 			}
 
@@ -3433,6 +3435,7 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
 		f2fs_warn(sbi, "%s: incorrect segment(%u) type, run fsck to fix.",
 			  __func__, segno);
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_SUM_TYPE);
 		goto drop_bio;
 	}
 
@@ -4381,6 +4384,8 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 			if (se->type >= NR_PERSISTENT_LOG) {
 				f2fs_err(sbi, "Invalid segment type: %u, segno: %u",
 							se->type, start);
+				f2fs_handle_error(sbi,
+						ERROR_INCONSISTENT_SUM_TYPE);
 				return -EFSCORRUPTED;
 			}
 
@@ -4417,6 +4422,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 			f2fs_err(sbi, "Wrong journal entry on segno %u",
 				 start);
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_CORRUPTED_JOURNAL);
 			break;
 		}
 
@@ -4436,6 +4442,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 			f2fs_err(sbi, "Invalid segment type: %u, segno: %u",
 							se->type, start);
 			err = -EFSCORRUPTED;
+			f2fs_handle_error(sbi, ERROR_INCONSISTENT_SUM_TYPE);
 			break;
 		}
 
@@ -4467,6 +4474,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 	if (sit_valid_blocks[NODE] != valid_node_count(sbi)) {
 		f2fs_err(sbi, "SIT is corrupted node# %u vs %u",
 			 sit_valid_blocks[NODE], valid_node_count(sbi));
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_NODE_COUNT);
 		return -EFSCORRUPTED;
 	}
 
@@ -4475,6 +4483,7 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
 		f2fs_err(sbi, "SIT is corrupted data# %u %u vs %u",
 			 sit_valid_blocks[DATA], sit_valid_blocks[NODE],
 			 valid_user_blocks(sbi));
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_BLOCK_COUNT);
 		return -EFSCORRUPTED;
 	}
 
@@ -4625,6 +4634,7 @@ static int sanity_check_curseg(struct f2fs_sb_info *sbi)
 			f2fs_err(sbi,
 				 "Current segment has invalid alloc_type:%d",
 				 curseg->alloc_type);
+			f2fs_handle_error(sbi, ERROR_INVALID_CURSEG);
 			return -EFSCORRUPTED;
 		}
 
@@ -4642,6 +4652,7 @@ static int sanity_check_curseg(struct f2fs_sb_info *sbi)
 				 "Current segment's next free block offset is inconsistent with bitmap, logtype:%u, segno:%u, type:%u, next_blkoff:%u, blkofs:%u",
 				 i, curseg->segno, curseg->alloc_type,
 				 curseg->next_blkoff, blkofs);
+			f2fs_handle_error(sbi, ERROR_INVALID_CURSEG);
 			return -EFSCORRUPTED;
 		}
 	}

fs/f2fs/segment.h

@@ -753,6 +753,7 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
 		f2fs_err(sbi, "Mismatch valid blocks %d vs. %d",
 			 GET_SIT_VBLOCKS(raw_sit), valid_blocks);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_SIT);
 		return -EFSCORRUPTED;
 	}
 
@@ -767,6 +768,7 @@ static inline int check_block_count(struct f2fs_sb_info *sbi,
 		f2fs_err(sbi, "Wrong valid blocks %d or segno %u",
 			 GET_SIT_VBLOCKS(raw_sit), segno);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_SIT);
 		return -EFSCORRUPTED;
 	}
 	return 0;

fs/f2fs/super.c

@@ -3851,8 +3851,6 @@ void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason)
 	struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
 	int err;
 
-	f2fs_bug_on(sbi, reason >= MAX_STOP_REASON);
-
 	f2fs_down_write(&sbi->sb_lock);
 
 	if (raw_super->s_stop_reason[reason] < ((1 << BITS_PER_BYTE) - 1))
@@ -3862,7 +3860,51 @@ void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason)
 	if (err)
 		f2fs_err(sbi, "f2fs_commit_super fails to record reason:%u err:%d",
 								reason, err);
+	f2fs_up_write(&sbi->sb_lock);
+}
+
+static void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag)
+{
+	spin_lock(&sbi->error_lock);
+	if (!test_bit(flag, (unsigned long *)sbi->errors)) {
+		set_bit(flag, (unsigned long *)sbi->errors);
+		sbi->error_dirty = true;
+	}
+	spin_unlock(&sbi->error_lock);
+}
+
+static bool f2fs_update_errors(struct f2fs_sb_info *sbi)
+{
+	bool need_update = false;
+
+	spin_lock(&sbi->error_lock);
+	if (sbi->error_dirty) {
+		memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
+							MAX_F2FS_ERRORS);
+		sbi->error_dirty = false;
+		need_update = true;
+	}
+	spin_unlock(&sbi->error_lock);
+
+	return need_update;
+}
 
+void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error)
+{
+	int err;
+
+	f2fs_save_errors(sbi, error);
+
+	f2fs_down_write(&sbi->sb_lock);
+
+	if (!f2fs_update_errors(sbi))
+		goto out_unlock;
+
+	err = f2fs_commit_super(sbi, false);
+	if (err)
+		f2fs_err(sbi, "f2fs_commit_super fails to record errors:%u, err:%d",
+								error, err);
+out_unlock:
 	f2fs_up_write(&sbi->sb_lock);
 }
 
@@ -4213,6 +4255,9 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		goto free_devices;
 	}
 
+	spin_lock_init(&sbi->error_lock);
+	memcpy(sbi->errors, raw_super->s_errors, MAX_F2FS_ERRORS);
+
 	sbi->total_valid_node_count =
 				le32_to_cpu(sbi->ckpt->valid_node_count);
 	percpu_counter_set(&sbi->total_valid_inode_count,

fs/f2fs/verity.c

@@ -240,6 +240,8 @@ static int f2fs_get_verity_descriptor(struct inode *inode, void *buf,
 	if (pos + size < pos || pos + size > inode->i_sb->s_maxbytes ||
 	    pos < f2fs_verity_metadata_pos(inode) || size > INT_MAX) {
 		f2fs_warn(F2FS_I_SB(inode), "invalid verity xattr");
+		f2fs_handle_error(F2FS_I_SB(inode),
+				ERROR_CORRUPTED_VERITY_XATTR);
 		return -EFSCORRUPTED;
 	}
 	if (buf_size) {

fs/f2fs/xattr.c

@@ -367,6 +367,8 @@ static int lookup_all_xattrs(struct inode *inode, struct page *ipage,
 								inode->i_ino);
 		set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
 		err = -EFSCORRUPTED;
+		f2fs_handle_error(F2FS_I_SB(inode),
+					ERROR_CORRUPTED_XATTR);
 		goto out;
 	}
 check:
@@ -583,6 +585,8 @@ ssize_t f2fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
 						inode->i_ino);
 			set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
 			error = -EFSCORRUPTED;
+			f2fs_handle_error(F2FS_I_SB(inode),
+						ERROR_CORRUPTED_XATTR);
 			goto cleanup;
 		}
 
@@ -658,6 +662,8 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 								inode->i_ino);
 		set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
 		error = -EFSCORRUPTED;
+		f2fs_handle_error(F2FS_I_SB(inode),
+					ERROR_CORRUPTED_XATTR);
 		goto exit;
 	}
 
@@ -684,6 +690,8 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 					inode->i_ino, ENTRY_SIZE(last));
 			set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
 			error = -EFSCORRUPTED;
+			f2fs_handle_error(F2FS_I_SB(inode),
+						ERROR_CORRUPTED_XATTR);
 			goto exit;
 		}
 		last = XATTR_NEXT_ENTRY(last);

include/linux/f2fs_fs.h

@@ -87,6 +87,28 @@ enum stop_cp_reason {
 
 #define	MAX_STOP_REASON			32
 
+/* detail reason for EFSCORRUPTED */
+enum f2fs_error {
+	ERROR_CORRUPTED_CLUSTER,
+	ERROR_FAIL_DECOMPRESSION,
+	ERROR_INVALID_BLKADDR,
+	ERROR_CORRUPTED_DIRENT,
+	ERROR_CORRUPTED_INODE,
+	ERROR_INCONSISTENT_SUMMARY,
+	ERROR_INCONSISTENT_FOOTER,
+	ERROR_INCONSISTENT_SUM_TYPE,
+	ERROR_CORRUPTED_JOURNAL,
+	ERROR_INCONSISTENT_NODE_COUNT,
+	ERROR_INCONSISTENT_BLOCK_COUNT,
+	ERROR_INVALID_CURSEG,
+	ERROR_INCONSISTENT_SIT,
+	ERROR_CORRUPTED_VERITY_XATTR,
+	ERROR_CORRUPTED_XATTR,
+	ERROR_MAX,
+};
+
+#define MAX_F2FS_ERRORS			16
+
 struct f2fs_super_block {
 	__le32 magic;			/* Magic Number */
 	__le16 major_ver;		/* Major Version */
@@ -131,7 +153,8 @@ struct f2fs_super_block {
 	__le16  s_encoding;		/* Filename charset encoding */
 	__le16  s_encoding_flags;	/* Filename charset encoding flags */
 	__u8 s_stop_reason[MAX_STOP_REASON];	/* stop checkpoint reason */
-	__u8 reserved[274];		/* valid reserved region */
+	__u8 s_errors[MAX_F2FS_ERRORS];		/* reason of image corrupts */
+	__u8 reserved[258];		/* valid reserved region */
 	__le32 crc;			/* checksum of superblock */
 } __packed;