ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/fs/f2fs/inode.c b/marvell/linux/fs/f2fs/inode.c
new file mode 100644
index 0000000..e6cec37
--- /dev/null
+++ b/marvell/linux/fs/f2fs/inode.c
@@ -0,0 +1,922 @@
+// 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/backing-dev.h>
+#include <linux/writeback.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_readonly(F2FS_I_SB(inode)->sb))
+ 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))
+ 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_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) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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_sb_has_flexible_inline_xattr(sbi)
+ && !f2fs_has_extra_attr(inode)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
+ __func__, inode->i_ino);
+ return false;
+ }
+
+ if (f2fs_has_extra_attr(inode) &&
+ !f2fs_sb_has_extra_attr(sbi)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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 % sizeof(__le32)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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_has_extra_attr(inode) &&
+ 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)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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_I(inode)->extent_tree) {
+ struct extent_info *ei = &F2FS_I(inode)->extent_tree->largest;
+
+ if (ei->len &&
+ (!f2fs_is_valid_blkaddr(sbi, ei->blk,
+ DATA_GENERIC_ENHANCE) ||
+ !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
+ DATA_GENERIC_ENHANCE))) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
+ __func__, inode->i_ino,
+ ei->blk, ei->fofs, ei->len);
+ return false;
+ }
+ }
+
+ if (f2fs_has_inline_data(inode) &&
+ (!S_ISREG(inode->i_mode) && !S_ISLNK(inode->i_mode))) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off",
+ __func__, inode->i_ino);
+ return false;
+ }
+
+ if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
+ fi->i_flags & F2FS_COMPR_FL &&
+ F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
+ i_log_cluster_size)) {
+ if (ri->i_compress_algorithm >= COMPRESS_MAX) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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)) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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) {
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ 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;
+ }
+ }
+
+ if (fi->i_xattr_nid && f2fs_check_nid_range(sbi, fi->i_xattr_nid)) {
+ f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_xattr_nid: %u, run fsck to fix.",
+ __func__, inode->i_ino, fi->i_xattr_nid);
+ return false;
+ }
+
+ return true;
+}
+
+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->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
+ 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_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_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;
+
+ f2fs_init_extent_tree(inode, node_page);
+
+ 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);
+ 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_log_cluster_size)) {
+ 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;
+ fi->i_compress_flag = le16_to_cpu(ri->i_compress_flag);
+ fi->i_cluster_size = 1 << fi->i_log_cluster_size;
+ set_inode_flag(inode, FI_COMPRESSED_FILE);
+ }
+ }
+
+ F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
+ F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
+ F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
+ F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
+ 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;
+}
+
+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)) {
+ trace_f2fs_iget(inode);
+ return inode;
+ }
+ if (ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi))
+ goto make_now;
+
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (ino == F2FS_COMPRESS_INO(sbi))
+ goto make_now;
+#endif
+
+ 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;
+#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);
+ 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) {
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
+ 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;
+
+ 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_size = cpu_to_le64(i_size_read(inode));
+ ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
+
+ if (et) {
+ read_lock(&et->lock);
+ set_raw_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->i_ctime.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->i_ctime.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_log_cluster_size)) {
+ 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;
+ ri->i_compress_flag =
+ cpu_to_le16(F2FS_I(inode)->i_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);
+
+ F2FS_I(inode)->i_disk_time[0] = inode->i_atime;
+ F2FS_I(inode)->i_disk_time[1] = inode->i_ctime;
+ F2FS_I(inode)->i_disk_time[2] = inode->i_mtime;
+ F2FS_I(inode)->i_disk_time[3] = F2FS_I(inode)->i_crtime;
+
+#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;
+retry:
+ node_page = f2fs_get_node_page(sbi, inode->i_ino);
+ if (IS_ERR(node_page)) {
+ int err = PTR_ERR(node_page);
+
+ if (err == -ENOMEM) {
+ cond_resched();
+ goto retry;
+ } else if (err != -ENOENT) {
+ f2fs_stop_checkpoint(sbi, false);
+ }
+ 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)) {
+ f2fs_mark_inode_dirty_sync(inode, true);
+ 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);
+ nid_t xnid = F2FS_I(inode)->i_xattr_nid;
+ int err = 0;
+
+ /* some remained atomic pages should discarded */
+ if (f2fs_is_atomic_file(inode))
+ f2fs_drop_inmem_pages(inode);
+
+ trace_f2fs_evict_inode(inode);
+ truncate_inode_pages_final(&inode->i_data);
+
+ if (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 = 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);
+
+ 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)) {
+ f2fs_show_injection_info(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);
+ }
+ 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(&F2FS_I(inode)->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);
+ 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);
+}