Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1019 insertions, 0 deletions

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
new file mode 100644
index 0000000000..cde243840a
--- /dev/null
+++ b/fs/f2fs/inode.c
@@ -0,0 +1,1019 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fs/f2fs/inode.c
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com/
+ */
+#include <linux/fs.h>
+#include <linux/f2fs_fs.h>
+#include <linux/buffer_head.h>
+#include <linux/writeback.h>
+#include <linux/sched/mm.h>
+#include <linux/lz4.h>
+#include <linux/zstd.h>
+
+#include "f2fs.h"
+#include "node.h"
+#include "segment.h"
+#include "xattr.h"
+
+#include <trace/events/f2fs.h>
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+extern const struct address_space_operations f2fs_compress_aops;
+#endif
+
+void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
+{
+	if (is_inode_flag_set(inode, FI_NEW_INODE))
+		return;
+
+	if (f2fs_inode_dirtied(inode, sync))
+		return;
+
+	mark_inode_dirty_sync(inode);
+}
+
+void f2fs_set_inode_flags(struct inode *inode)
+{
+	unsigned int flags = F2FS_I(inode)->i_flags;
+	unsigned int new_fl = 0;
+
+	if (flags & F2FS_SYNC_FL)
+		new_fl |= S_SYNC;
+	if (flags & F2FS_APPEND_FL)
+		new_fl |= S_APPEND;
+	if (flags & F2FS_IMMUTABLE_FL)
+		new_fl |= S_IMMUTABLE;
+	if (flags & F2FS_NOATIME_FL)
+		new_fl |= S_NOATIME;
+	if (flags & F2FS_DIRSYNC_FL)
+		new_fl |= S_DIRSYNC;
+	if (file_is_encrypt(inode))
+		new_fl |= S_ENCRYPTED;
+	if (file_is_verity(inode))
+		new_fl |= S_VERITY;
+	if (flags & F2FS_CASEFOLD_FL)
+		new_fl |= S_CASEFOLD;
+	inode_set_flags(inode, new_fl,
+			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
+			S_ENCRYPTED|S_VERITY|S_CASEFOLD);
+}
+
+static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
+{
+	int extra_size = get_extra_isize(inode);
+
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
+			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
+		if (ri->i_addr[extra_size])
+			inode->i_rdev = old_decode_dev(
+				le32_to_cpu(ri->i_addr[extra_size]));
+		else
+			inode->i_rdev = new_decode_dev(
+				le32_to_cpu(ri->i_addr[extra_size + 1]));
+	}
+}
+
+static int __written_first_block(struct f2fs_sb_info *sbi,
+					struct f2fs_inode *ri)
+{
+	block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
+
+	if (!__is_valid_data_blkaddr(addr))
+		return 1;
+	if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) {
+		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
+		return -EFSCORRUPTED;
+	}
+	return 0;
+}
+
+static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
+{
+	int extra_size = get_extra_isize(inode);
+
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
+		if (old_valid_dev(inode->i_rdev)) {
+			ri->i_addr[extra_size] =
+				cpu_to_le32(old_encode_dev(inode->i_rdev));
+			ri->i_addr[extra_size + 1] = 0;
+		} else {
+			ri->i_addr[extra_size] = 0;
+			ri->i_addr[extra_size + 1] =
+				cpu_to_le32(new_encode_dev(inode->i_rdev));
+			ri->i_addr[extra_size + 2] = 0;
+		}
+	}
+}
+
+static void __recover_inline_status(struct inode *inode, struct page *ipage)
+{
+	void *inline_data = inline_data_addr(inode, ipage);
+	__le32 *start = inline_data;
+	__le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
+
+	while (start < end) {
+		if (*start++) {
+			f2fs_wait_on_page_writeback(ipage, NODE, true, true);
+
+			set_inode_flag(inode, FI_DATA_EXIST);
+			set_raw_inline(inode, F2FS_INODE(ipage));
+			set_page_dirty(ipage);
+			return;
+		}
+	}
+	return;
+}
+
+static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
+{
+	struct f2fs_inode *ri = &F2FS_NODE(page)->i;
+
+	if (!f2fs_sb_has_inode_chksum(sbi))
+		return false;
+
+	if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
+		return false;
+
+	if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
+				i_inode_checksum))
+		return false;
+
+	return true;
+}
+
+static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
+{
+	struct f2fs_node *node = F2FS_NODE(page);
+	struct f2fs_inode *ri = &node->i;
+	__le32 ino = node->footer.ino;
+	__le32 gen = ri->i_generation;
+	__u32 chksum, chksum_seed;
+	__u32 dummy_cs = 0;
+	unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
+	unsigned int cs_size = sizeof(dummy_cs);
+
+	chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
+							sizeof(ino));
+	chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
+
+	chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
+	chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
+	offset += cs_size;
+	chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
+						F2FS_BLKSIZE - offset);
+	return chksum;
+}
+
+bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
+{
+	struct f2fs_inode *ri;
+	__u32 provided, calculated;
+
+	if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
+		return true;
+
+#ifdef CONFIG_F2FS_CHECK_FS
+	if (!f2fs_enable_inode_chksum(sbi, page))
+#else
+	if (!f2fs_enable_inode_chksum(sbi, page) ||
+			PageDirty(page) || PageWriteback(page))
+#endif
+		return true;
+
+	ri = &F2FS_NODE(page)->i;
+	provided = le32_to_cpu(ri->i_inode_checksum);
+	calculated = f2fs_inode_chksum(sbi, page);
+
+	if (provided != calculated)
+		f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
+			  page->index, ino_of_node(page), provided, calculated);
+
+	return provided == calculated;
+}
+
+void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
+{
+	struct f2fs_inode *ri = &F2FS_NODE(page)->i;
+
+	if (!f2fs_enable_inode_chksum(sbi, page))
+		return;
+
+	ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
+}
+
+static bool sanity_check_compress_inode(struct inode *inode,
+			struct f2fs_inode *ri)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	unsigned char clevel;
+
+	if (ri->i_compress_algorithm >= COMPRESS_MAX) {
+		f2fs_warn(sbi,
+			"%s: inode (ino=%lx) has unsupported compress algorithm: %u, run fsck to fix",
+			__func__, inode->i_ino, ri->i_compress_algorithm);
+		return false;
+	}
+	if (le64_to_cpu(ri->i_compr_blocks) >
+			SECTOR_TO_BLOCK(inode->i_blocks)) {
+		f2fs_warn(sbi,
+			"%s: inode (ino=%lx) has inconsistent i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
+			__func__, inode->i_ino, le64_to_cpu(ri->i_compr_blocks),
+			SECTOR_TO_BLOCK(inode->i_blocks));
+		return false;
+	}
+	if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
+		ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
+		f2fs_warn(sbi,
+			"%s: inode (ino=%lx) has unsupported log cluster size: %u, run fsck to fix",
+			__func__, inode->i_ino, ri->i_log_cluster_size);
+		return false;
+	}
+
+	clevel = le16_to_cpu(ri->i_compress_flag) >>
+				COMPRESS_LEVEL_OFFSET;
+	switch (ri->i_compress_algorithm) {
+	case COMPRESS_LZO:
+#ifdef CONFIG_F2FS_FS_LZO
+		if (clevel)
+			goto err_level;
+#endif
+		break;
+	case COMPRESS_LZORLE:
+#ifdef CONFIG_F2FS_FS_LZORLE
+		if (clevel)
+			goto err_level;
+#endif
+		break;
+	case COMPRESS_LZ4:
+#ifdef CONFIG_F2FS_FS_LZ4
+#ifdef CONFIG_F2FS_FS_LZ4HC
+		if (clevel &&
+		   (clevel < LZ4HC_MIN_CLEVEL || clevel > LZ4HC_MAX_CLEVEL))
+			goto err_level;
+#else
+		if (clevel)
+			goto err_level;
+#endif
+#endif
+		break;
+	case COMPRESS_ZSTD:
+#ifdef CONFIG_F2FS_FS_ZSTD
+		if (clevel < zstd_min_clevel() || clevel > zstd_max_clevel())
+			goto err_level;
+#endif
+		break;
+	default:
+		goto err_level;
+	}
+
+	return true;
+err_level:
+	f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported compress level: %u, run fsck to fix",
+		  __func__, inode->i_ino, clevel);
+	return false;
+}
+
+static bool sanity_check_inode(struct inode *inode, struct page *node_page)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct f2fs_inode_info *fi = F2FS_I(inode);
+	struct f2fs_inode *ri = F2FS_INODE(node_page);
+	unsigned long long iblocks;
+
+	iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
+	if (!iblocks) {
+		f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
+			  __func__, inode->i_ino, iblocks);
+		return false;
+	}
+
+	if (ino_of_node(node_page) != nid_of_node(node_page)) {
+		f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
+			  __func__, inode->i_ino,
+			  ino_of_node(node_page), nid_of_node(node_page));
+		return false;
+	}
+
+	if (f2fs_has_extra_attr(inode)) {
+		if (!f2fs_sb_has_extra_attr(sbi)) {
+			f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
+				  __func__, inode->i_ino);
+			return false;
+		}
+		if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
+			fi->i_extra_isize < F2FS_MIN_EXTRA_ATTR_SIZE ||
+			fi->i_extra_isize % sizeof(__le32)) {
+			f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
+				  __func__, inode->i_ino, fi->i_extra_isize,
+				  F2FS_TOTAL_EXTRA_ATTR_SIZE);
+			return false;
+		}
+		if (f2fs_sb_has_flexible_inline_xattr(sbi) &&
+			f2fs_has_inline_xattr(inode) &&
+			(!fi->i_inline_xattr_size ||
+			fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
+			f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %zu",
+				  __func__, inode->i_ino, fi->i_inline_xattr_size,
+				  MAX_INLINE_XATTR_SIZE);
+			return false;
+		}
+		if (f2fs_sb_has_compression(sbi) &&
+			fi->i_flags & F2FS_COMPR_FL &&
+			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
+						i_compress_flag)) {
+			if (!sanity_check_compress_inode(inode, ri))
+				return false;
+		}
+	} else if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
+		f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
+			  __func__, inode->i_ino);
+		return false;
+	}
+
+	if (!f2fs_sb_has_extra_attr(sbi)) {
+		if (f2fs_sb_has_project_quota(sbi)) {
+			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
+				  __func__, inode->i_ino, F2FS_FEATURE_PRJQUOTA);
+			return false;
+		}
+		if (f2fs_sb_has_inode_chksum(sbi)) {
+			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
+				  __func__, inode->i_ino, F2FS_FEATURE_INODE_CHKSUM);
+			return false;
+		}
+		if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
+			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
+				  __func__, inode->i_ino, F2FS_FEATURE_FLEXIBLE_INLINE_XATTR);
+			return false;
+		}
+		if (f2fs_sb_has_inode_crtime(sbi)) {
+			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
+				  __func__, inode->i_ino, F2FS_FEATURE_INODE_CRTIME);
+			return false;
+		}
+		if (f2fs_sb_has_compression(sbi)) {
+			f2fs_warn(sbi, "%s: corrupted inode ino=%lx, wrong feature flag: %u, run fsck to fix.",
+				  __func__, inode->i_ino, F2FS_FEATURE_COMPRESSION);
+			return false;
+		}
+	}
+
+	if (f2fs_sanity_check_inline_data(inode)) {
+		f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
+			  __func__, inode->i_ino, inode->i_mode);
+		return false;
+	}
+
+	if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
+		f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
+			  __func__, inode->i_ino, inode->i_mode);
+		return false;
+	}
+
+	if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) {
+		f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off",
+			  __func__, inode->i_ino);
+		return false;
+	}
+
+	return true;
+}
+
+static void init_idisk_time(struct inode *inode)
+{
+	struct f2fs_inode_info *fi = F2FS_I(inode);
+
+	fi->i_disk_time[0] = inode->i_atime;
+	fi->i_disk_time[1] = inode_get_ctime(inode);
+	fi->i_disk_time[2] = inode->i_mtime;
+}
+
+static int do_read_inode(struct inode *inode)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct f2fs_inode_info *fi = F2FS_I(inode);
+	struct page *node_page;
+	struct f2fs_inode *ri;
+	projid_t i_projid;
+	int err;
+
+	/* Check if ino is within scope */
+	if (f2fs_check_nid_range(sbi, inode->i_ino))
+		return -EINVAL;
+
+	node_page = f2fs_get_node_page(sbi, inode->i_ino);
+	if (IS_ERR(node_page))
+		return PTR_ERR(node_page);
+
+	ri = F2FS_INODE(node_page);
+
+	inode->i_mode = le16_to_cpu(ri->i_mode);
+	i_uid_write(inode, le32_to_cpu(ri->i_uid));
+	i_gid_write(inode, le32_to_cpu(ri->i_gid));
+	set_nlink(inode, le32_to_cpu(ri->i_links));
+	inode->i_size = le64_to_cpu(ri->i_size);
+	inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
+
+	inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
+	inode_set_ctime(inode, le64_to_cpu(ri->i_ctime),
+			le32_to_cpu(ri->i_ctime_nsec));
+	inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
+	inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
+	inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
+	inode->i_generation = le32_to_cpu(ri->i_generation);
+	if (S_ISDIR(inode->i_mode))
+		fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
+	else if (S_ISREG(inode->i_mode))
+		fi->i_gc_failures[GC_FAILURE_PIN] =
+					le16_to_cpu(ri->i_gc_failures);
+	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
+	fi->i_flags = le32_to_cpu(ri->i_flags);
+	if (S_ISREG(inode->i_mode))
+		fi->i_flags &= ~F2FS_PROJINHERIT_FL;
+	bitmap_zero(fi->flags, FI_MAX);
+	fi->i_advise = ri->i_advise;
+	fi->i_pino = le32_to_cpu(ri->i_pino);
+	fi->i_dir_level = ri->i_dir_level;
+
+	get_inline_info(inode, ri);
+
+	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)) {
+		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;
+	}
+
+	if (!sanity_check_inode(inode, node_page)) {
+		f2fs_put_page(node_page, 1);
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
+		return -EFSCORRUPTED;
+	}
+
+	/* check data exist */
+	if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
+		__recover_inline_status(inode, node_page);
+
+	/* try to recover cold bit for non-dir inode */
+	if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
+		f2fs_wait_on_page_writeback(node_page, NODE, true, true);
+		set_cold_node(node_page, false);
+		set_page_dirty(node_page);
+	}
+
+	/* get rdev by using inline_info */
+	__get_inode_rdev(inode, ri);
+
+	if (S_ISREG(inode->i_mode)) {
+		err = __written_first_block(sbi, ri);
+		if (err < 0) {
+			f2fs_put_page(node_page, 1);
+			return err;
+		}
+		if (!err)
+			set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
+	}
+
+	if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
+		fi->last_disk_size = inode->i_size;
+
+	if (fi->i_flags & F2FS_PROJINHERIT_FL)
+		set_inode_flag(inode, FI_PROJ_INHERIT);
+
+	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
+			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
+		i_projid = (projid_t)le32_to_cpu(ri->i_projid);
+	else
+		i_projid = F2FS_DEF_PROJID;
+	fi->i_projid = make_kprojid(&init_user_ns, i_projid);
+
+	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
+			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
+		fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
+		fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
+	}
+
+	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
+					(fi->i_flags & F2FS_COMPR_FL)) {
+		if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
+					i_compress_flag)) {
+			unsigned short compress_flag;
+
+			atomic_set(&fi->i_compr_blocks,
+					le64_to_cpu(ri->i_compr_blocks));
+			fi->i_compress_algorithm = ri->i_compress_algorithm;
+			fi->i_log_cluster_size = ri->i_log_cluster_size;
+			compress_flag = le16_to_cpu(ri->i_compress_flag);
+			fi->i_compress_level = compress_flag >>
+						COMPRESS_LEVEL_OFFSET;
+			fi->i_compress_flag = compress_flag &
+					GENMASK(COMPRESS_LEVEL_OFFSET - 1, 0);
+			fi->i_cluster_size = BIT(fi->i_log_cluster_size);
+			set_inode_flag(inode, FI_COMPRESSED_FILE);
+		}
+	}
+
+	init_idisk_time(inode);
+
+	/* Need all the flag bits */
+	f2fs_init_read_extent_tree(inode, node_page);
+	f2fs_init_age_extent_tree(inode);
+
+	if (!sanity_check_extent_cache(inode)) {
+		f2fs_put_page(node_page, 1);
+		f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
+		return -EFSCORRUPTED;
+	}
+
+	f2fs_put_page(node_page, 1);
+
+	stat_inc_inline_xattr(inode);
+	stat_inc_inline_inode(inode);
+	stat_inc_inline_dir(inode);
+	stat_inc_compr_inode(inode);
+	stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks));
+
+	return 0;
+}
+
+static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
+{
+	return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) ||
+		ino == F2FS_COMPRESS_INO(sbi);
+}
+
+struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
+{
+	struct f2fs_sb_info *sbi = F2FS_SB(sb);
+	struct inode *inode;
+	int ret = 0;
+
+	inode = iget_locked(sb, ino);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+
+	if (!(inode->i_state & I_NEW)) {
+		if (is_meta_ino(sbi, ino)) {
+			f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino);
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
+			ret = -EFSCORRUPTED;
+			trace_f2fs_iget_exit(inode, ret);
+			iput(inode);
+			f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
+			return ERR_PTR(ret);
+		}
+
+		trace_f2fs_iget(inode);
+		return inode;
+	}
+
+	if (is_meta_ino(sbi, ino))
+		goto make_now;
+
+	ret = do_read_inode(inode);
+	if (ret)
+		goto bad_inode;
+make_now:
+	if (ino == F2FS_NODE_INO(sbi)) {
+		inode->i_mapping->a_ops = &f2fs_node_aops;
+		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
+	} else if (ino == F2FS_META_INO(sbi)) {
+		inode->i_mapping->a_ops = &f2fs_meta_aops;
+		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
+	} else if (ino == F2FS_COMPRESS_INO(sbi)) {
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+		inode->i_mapping->a_ops = &f2fs_compress_aops;
+		/*
+		 * generic_error_remove_page only truncates pages of regular
+		 * inode
+		 */
+		inode->i_mode |= S_IFREG;
+#endif
+		mapping_set_gfp_mask(inode->i_mapping,
+			GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
+	} else if (S_ISREG(inode->i_mode)) {
+		inode->i_op = &f2fs_file_inode_operations;
+		inode->i_fop = &f2fs_file_operations;
+		inode->i_mapping->a_ops = &f2fs_dblock_aops;
+	} else if (S_ISDIR(inode->i_mode)) {
+		inode->i_op = &f2fs_dir_inode_operations;
+		inode->i_fop = &f2fs_dir_operations;
+		inode->i_mapping->a_ops = &f2fs_dblock_aops;
+		mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
+	} else if (S_ISLNK(inode->i_mode)) {
+		if (file_is_encrypt(inode))
+			inode->i_op = &f2fs_encrypted_symlink_inode_operations;
+		else
+			inode->i_op = &f2fs_symlink_inode_operations;
+		inode_nohighmem(inode);
+		inode->i_mapping->a_ops = &f2fs_dblock_aops;
+	} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
+			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
+		inode->i_op = &f2fs_special_inode_operations;
+		init_special_inode(inode, inode->i_mode, inode->i_rdev);
+	} else {
+		ret = -EIO;
+		goto bad_inode;
+	}
+	f2fs_set_inode_flags(inode);
+
+	if (file_should_truncate(inode) &&
+			!is_sbi_flag_set(sbi, SBI_POR_DOING)) {
+		ret = f2fs_truncate(inode);
+		if (ret)
+			goto bad_inode;
+		file_dont_truncate(inode);
+	}
+
+	unlock_new_inode(inode);
+	trace_f2fs_iget(inode);
+	return inode;
+
+bad_inode:
+	f2fs_inode_synced(inode);
+	iget_failed(inode);
+	trace_f2fs_iget_exit(inode, ret);
+	return ERR_PTR(ret);
+}
+
+struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
+{
+	struct inode *inode;
+retry:
+	inode = f2fs_iget(sb, ino);
+	if (IS_ERR(inode)) {
+		if (PTR_ERR(inode) == -ENOMEM) {
+			memalloc_retry_wait(GFP_NOFS);
+			goto retry;
+		}
+	}
+	return inode;
+}
+
+void f2fs_update_inode(struct inode *inode, struct page *node_page)
+{
+	struct f2fs_inode *ri;
+	struct extent_tree *et = F2FS_I(inode)->extent_tree[EX_READ];
+
+	f2fs_wait_on_page_writeback(node_page, NODE, true, true);
+	set_page_dirty(node_page);
+
+	f2fs_inode_synced(inode);
+
+	ri = F2FS_INODE(node_page);
+
+	ri->i_mode = cpu_to_le16(inode->i_mode);
+	ri->i_advise = F2FS_I(inode)->i_advise;
+	ri->i_uid = cpu_to_le32(i_uid_read(inode));
+	ri->i_gid = cpu_to_le32(i_gid_read(inode));
+	ri->i_links = cpu_to_le32(inode->i_nlink);
+	ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
+
+	if (!f2fs_is_atomic_file(inode) ||
+			is_inode_flag_set(inode, FI_ATOMIC_COMMITTED))
+		ri->i_size = cpu_to_le64(i_size_read(inode));
+
+	if (et) {
+		read_lock(&et->lock);
+		set_raw_read_extent(&et->largest, &ri->i_ext);
+		read_unlock(&et->lock);
+	} else {
+		memset(&ri->i_ext, 0, sizeof(ri->i_ext));
+	}
+	set_raw_inline(inode, ri);
+
+	ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
+	ri->i_ctime = cpu_to_le64(inode_get_ctime(inode).tv_sec);
+	ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
+	ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
+	ri->i_ctime_nsec = cpu_to_le32(inode_get_ctime(inode).tv_nsec);
+	ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
+	if (S_ISDIR(inode->i_mode))
+		ri->i_current_depth =
+			cpu_to_le32(F2FS_I(inode)->i_current_depth);
+	else if (S_ISREG(inode->i_mode))
+		ri->i_gc_failures =
+			cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
+	ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
+	ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
+	ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
+	ri->i_generation = cpu_to_le32(inode->i_generation);
+	ri->i_dir_level = F2FS_I(inode)->i_dir_level;
+
+	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)))
+			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)) &&
+			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
+								i_projid)) {
+			projid_t i_projid;
+
+			i_projid = from_kprojid(&init_user_ns,
+						F2FS_I(inode)->i_projid);
+			ri->i_projid = cpu_to_le32(i_projid);
+		}
+
+		if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
+			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
+								i_crtime)) {
+			ri->i_crtime =
+				cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
+			ri->i_crtime_nsec =
+				cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
+		}
+
+		if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
+			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
+							i_compress_flag)) {
+			unsigned short compress_flag;
+
+			ri->i_compr_blocks =
+				cpu_to_le64(atomic_read(
+					&F2FS_I(inode)->i_compr_blocks));
+			ri->i_compress_algorithm =
+				F2FS_I(inode)->i_compress_algorithm;
+			compress_flag = F2FS_I(inode)->i_compress_flag |
+				F2FS_I(inode)->i_compress_level <<
+						COMPRESS_LEVEL_OFFSET;
+			ri->i_compress_flag = cpu_to_le16(compress_flag);
+			ri->i_log_cluster_size =
+				F2FS_I(inode)->i_log_cluster_size;
+		}
+	}
+
+	__set_inode_rdev(inode, ri);
+
+	/* deleted inode */
+	if (inode->i_nlink == 0)
+		clear_page_private_inline(node_page);
+
+	init_idisk_time(inode);
+#ifdef CONFIG_F2FS_CHECK_FS
+	f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
+#endif
+}
+
+void f2fs_update_inode_page(struct inode *inode)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct page *node_page;
+	int count = 0;
+retry:
+	node_page = f2fs_get_node_page(sbi, inode->i_ino);
+	if (IS_ERR(node_page)) {
+		int err = PTR_ERR(node_page);
+
+		/* The node block was truncated. */
+		if (err == -ENOENT)
+			return;
+
+		if (err == -ENOMEM || ++count <= DEFAULT_RETRY_IO_COUNT)
+			goto retry;
+		f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_UPDATE_INODE);
+		return;
+	}
+	f2fs_update_inode(inode, node_page);
+	f2fs_put_page(node_page, 1);
+}
+
+int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
+			inode->i_ino == F2FS_META_INO(sbi))
+		return 0;
+
+	/*
+	 * atime could be updated without dirtying f2fs inode in lazytime mode
+	 */
+	if (f2fs_is_time_consistent(inode) &&
+		!is_inode_flag_set(inode, FI_DIRTY_INODE))
+		return 0;
+
+	if (!f2fs_is_checkpoint_ready(sbi))
+		return -ENOSPC;
+
+	/*
+	 * We need to balance fs here to prevent from producing dirty node pages
+	 * during the urgent cleaning time when running out of free sections.
+	 */
+	f2fs_update_inode_page(inode);
+	if (wbc && wbc->nr_to_write)
+		f2fs_balance_fs(sbi, true);
+	return 0;
+}
+
+/*
+ * Called at the last iput() if i_nlink is zero
+ */
+void f2fs_evict_inode(struct inode *inode)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct f2fs_inode_info *fi = F2FS_I(inode);
+	nid_t xnid = fi->i_xattr_nid;
+	int err = 0;
+
+	f2fs_abort_atomic_write(inode, true);
+
+	if (fi->cow_inode) {
+		clear_inode_flag(fi->cow_inode, FI_COW_FILE);
+		iput(fi->cow_inode);
+		fi->cow_inode = NULL;
+	}
+
+	trace_f2fs_evict_inode(inode);
+	truncate_inode_pages_final(&inode->i_data);
+
+	if ((inode->i_nlink || is_bad_inode(inode)) &&
+		test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
+		f2fs_invalidate_compress_pages(sbi, inode->i_ino);
+
+	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
+			inode->i_ino == F2FS_META_INO(sbi) ||
+			inode->i_ino == F2FS_COMPRESS_INO(sbi))
+		goto out_clear;
+
+	f2fs_bug_on(sbi, get_dirty_pages(inode));
+	f2fs_remove_dirty_inode(inode);
+
+	f2fs_destroy_extent_tree(inode);
+
+	if (inode->i_nlink || is_bad_inode(inode))
+		goto no_delete;
+
+	err = f2fs_dquot_initialize(inode);
+	if (err) {
+		err = 0;
+		set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+	}
+
+	f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
+	f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
+	f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
+
+	if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
+		sb_start_intwrite(inode->i_sb);
+	set_inode_flag(inode, FI_NO_ALLOC);
+	i_size_write(inode, 0);
+retry:
+	if (F2FS_HAS_BLOCKS(inode))
+		err = f2fs_truncate(inode);
+
+	if (time_to_inject(sbi, FAULT_EVICT_INODE))
+		err = -EIO;
+
+	if (!err) {
+		f2fs_lock_op(sbi);
+		err = f2fs_remove_inode_page(inode);
+		f2fs_unlock_op(sbi);
+		if (err == -ENOENT) {
+			err = 0;
+
+			/*
+			 * in fuzzed image, another node may has the same
+			 * block address as inode's, if it was truncated
+			 * previously, truncation of inode node will fail.
+			 */
+			if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
+				f2fs_warn(F2FS_I_SB(inode),
+					"f2fs_evict_inode: inconsistent node id, ino:%lu",
+					inode->i_ino);
+				f2fs_inode_synced(inode);
+				set_sbi_flag(sbi, SBI_NEED_FSCK);
+			}
+		}
+	}
+
+	/* give more chances, if ENOMEM case */
+	if (err == -ENOMEM) {
+		err = 0;
+		goto retry;
+	}
+
+	if (err) {
+		f2fs_update_inode_page(inode);
+		if (dquot_initialize_needed(inode))
+			set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+	}
+	if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
+		sb_end_intwrite(inode->i_sb);
+no_delete:
+	dquot_drop(inode);
+
+	stat_dec_inline_xattr(inode);
+	stat_dec_inline_dir(inode);
+	stat_dec_inline_inode(inode);
+	stat_dec_compr_inode(inode);
+	stat_sub_compr_blocks(inode,
+			atomic_read(&fi->i_compr_blocks));
+
+	if (likely(!f2fs_cp_error(sbi) &&
+				!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+		f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
+	else
+		f2fs_inode_synced(inode);
+
+	/* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
+	if (inode->i_ino)
+		invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
+							inode->i_ino);
+	if (xnid)
+		invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
+	if (inode->i_nlink) {
+		if (is_inode_flag_set(inode, FI_APPEND_WRITE))
+			f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
+		if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
+			f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
+	}
+	if (is_inode_flag_set(inode, FI_FREE_NID)) {
+		f2fs_alloc_nid_failed(sbi, inode->i_ino);
+		clear_inode_flag(inode, FI_FREE_NID);
+	} else {
+		/*
+		 * If xattr nid is corrupted, we can reach out error condition,
+		 * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
+		 * In that case, f2fs_check_nid_range() is enough to give a clue.
+		 */
+	}
+out_clear:
+	fscrypt_put_encryption_info(inode);
+	fsverity_cleanup_inode(inode);
+	clear_inode(inode);
+}
+
+/* caller should call f2fs_lock_op() */
+void f2fs_handle_failed_inode(struct inode *inode)
+{
+	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+	struct node_info ni;
+	int err;
+
+	/*
+	 * clear nlink of inode in order to release resource of inode
+	 * immediately.
+	 */
+	clear_nlink(inode);
+
+	/*
+	 * we must call this to avoid inode being remained as dirty, resulting
+	 * in a panic when flushing dirty inodes in gdirty_list.
+	 */
+	f2fs_update_inode_page(inode);
+	f2fs_inode_synced(inode);
+
+	/* don't make bad inode, since it becomes a regular file. */
+	unlock_new_inode(inode);
+
+	/*
+	 * Note: we should add inode to orphan list before f2fs_unlock_op()
+	 * so we can prevent losing this orphan when encoutering checkpoint
+	 * and following suddenly power-off.
+	 */
+	err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
+	if (err) {
+		set_sbi_flag(sbi, SBI_NEED_FSCK);
+		set_inode_flag(inode, FI_FREE_NID);
+		f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
+		goto out;
+	}
+
+	if (ni.blk_addr != NULL_ADDR) {
+		err = f2fs_acquire_orphan_inode(sbi);
+		if (err) {
+			set_sbi_flag(sbi, SBI_NEED_FSCK);
+			f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
+		} else {
+			f2fs_add_orphan_inode(inode);
+		}
+		f2fs_alloc_nid_done(sbi, inode->i_ino);
+	} else {
+		set_inode_flag(inode, FI_FREE_NID);
+	}
+
+out:
+	f2fs_unlock_op(sbi);
+
+	/* iput will drop the inode object */
+	iput(inode);
+}