Lines Matching refs:sb
70 static void ext4_update_super(struct super_block *sb);
71 static int ext4_commit_super(struct super_block *sb);
72 static int ext4_mark_recovery_complete(struct super_block *sb,
74 static int ext4_clear_journal_err(struct super_block *sb,
76 static int ext4_sync_fs(struct super_block *sb, int wait);
78 static int ext4_unfreeze(struct super_block *sb);
79 static int ext4_freeze(struct super_block *sb);
80 static inline int ext2_feature_set_ok(struct super_block *sb);
81 static inline int ext3_feature_set_ok(struct super_block *sb);
83 static void ext4_unregister_li_request(struct super_block *sb);
85 static struct inode *ext4_get_journal_inode(struct super_block *sb,
89 struct super_block *sb);
90 static void ext4_apply_options(struct fs_context *fc, struct super_block *sb);
96 static void ext4_kill_sb(struct super_block *sb);
144 #define IS_EXT2_SB(sb) ((sb)->s_type == &ext2_fs_type) argument
146 #define IS_EXT2_SB(sb) (0) argument
160 #define IS_EXT3_SB(sb) ((sb)->s_type == &ext3_fs_type) argument
223 static struct buffer_head *__ext4_sb_bread_gfp(struct super_block *sb, in __ext4_sb_bread_gfp() argument
230 bh = sb_getblk_gfp(sb, block, gfp); in __ext4_sb_bread_gfp()
244 struct buffer_head *ext4_sb_bread(struct super_block *sb, sector_t block, in ext4_sb_bread() argument
247 return __ext4_sb_bread_gfp(sb, block, op_flags, __GFP_MOVABLE); in ext4_sb_bread()
250 struct buffer_head *ext4_sb_bread_unmovable(struct super_block *sb, in ext4_sb_bread_unmovable() argument
253 return __ext4_sb_bread_gfp(sb, block, 0, 0); in ext4_sb_bread_unmovable()
256 void ext4_sb_breadahead_unmovable(struct super_block *sb, sector_t block) in ext4_sb_breadahead_unmovable() argument
258 struct buffer_head *bh = sb_getblk_gfp(sb, block, 0); in ext4_sb_breadahead_unmovable()
267 static int ext4_verify_csum_type(struct super_block *sb, in ext4_verify_csum_type() argument
270 if (!ext4_has_feature_metadata_csum(sb)) in ext4_verify_csum_type()
276 __le32 ext4_superblock_csum(struct super_block *sb, in ext4_superblock_csum() argument
279 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_superblock_csum()
288 static int ext4_superblock_csum_verify(struct super_block *sb, in ext4_superblock_csum_verify() argument
291 if (!ext4_has_metadata_csum(sb)) in ext4_superblock_csum_verify()
294 return es->s_checksum == ext4_superblock_csum(sb, es); in ext4_superblock_csum_verify()
297 void ext4_superblock_csum_set(struct super_block *sb) in ext4_superblock_csum_set() argument
299 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in ext4_superblock_csum_set()
301 if (!ext4_has_metadata_csum(sb)) in ext4_superblock_csum_set()
304 es->s_checksum = ext4_superblock_csum(sb, es); in ext4_superblock_csum_set()
307 ext4_fsblk_t ext4_block_bitmap(struct super_block *sb, in ext4_block_bitmap() argument
311 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_block_bitmap()
315 ext4_fsblk_t ext4_inode_bitmap(struct super_block *sb, in ext4_inode_bitmap() argument
319 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_inode_bitmap()
323 ext4_fsblk_t ext4_inode_table(struct super_block *sb, in ext4_inode_table() argument
327 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_inode_table()
331 __u32 ext4_free_group_clusters(struct super_block *sb, in ext4_free_group_clusters() argument
335 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_free_group_clusters()
339 __u32 ext4_free_inodes_count(struct super_block *sb, in ext4_free_inodes_count() argument
343 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_free_inodes_count()
347 __u32 ext4_used_dirs_count(struct super_block *sb, in ext4_used_dirs_count() argument
351 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_used_dirs_count()
355 __u32 ext4_itable_unused_count(struct super_block *sb, in ext4_itable_unused_count() argument
359 (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT ? in ext4_itable_unused_count()
363 void ext4_block_bitmap_set(struct super_block *sb, in ext4_block_bitmap_set() argument
367 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_block_bitmap_set()
371 void ext4_inode_bitmap_set(struct super_block *sb, in ext4_inode_bitmap_set() argument
375 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_inode_bitmap_set()
379 void ext4_inode_table_set(struct super_block *sb, in ext4_inode_table_set() argument
383 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_inode_table_set()
387 void ext4_free_group_clusters_set(struct super_block *sb, in ext4_free_group_clusters_set() argument
391 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_free_group_clusters_set()
395 void ext4_free_inodes_set(struct super_block *sb, in ext4_free_inodes_set() argument
399 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_free_inodes_set()
403 void ext4_used_dirs_set(struct super_block *sb, in ext4_used_dirs_set() argument
407 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_used_dirs_set()
411 void ext4_itable_unused_set(struct super_block *sb, in ext4_itable_unused_set() argument
415 if (EXT4_DESC_SIZE(sb) >= EXT4_MIN_DESC_SIZE_64BIT) in ext4_itable_unused_set()
452 static void ext4_maybe_update_superblock(struct super_block *sb) in ext4_maybe_update_superblock() argument
454 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_maybe_update_superblock()
462 if (sb_rdonly(sb) || !(sb->s_flags & SB_ACTIVE) || in ext4_maybe_update_superblock()
473 ((part_stat_read(sb->s_bdev, sectors[STAT_WRITE]) - in ext4_maybe_update_superblock()
485 schedule_work(&EXT4_SB(sb)->s_sb_upd_work); in ext4_maybe_update_superblock()
496 static int block_device_ejected(struct super_block *sb) in block_device_ejected() argument
498 struct inode *bd_inode = sb->s_bdev->bd_inode; in block_device_ejected()
506 struct super_block *sb = journal->j_private; in ext4_journal_commit_callback() local
507 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_journal_commit_callback()
513 ext4_process_freed_data(sb, txn->t_tid); in ext4_journal_commit_callback()
514 ext4_maybe_update_superblock(sb); in ext4_journal_commit_callback()
522 jce->jce_func(sb, jce, error); in ext4_journal_commit_callback()
652 static void save_error_info(struct super_block *sb, int error, in save_error_info() argument
656 struct ext4_sb_info *sbi = EXT4_SB(sb); in save_error_info()
701 static void ext4_handle_error(struct super_block *sb, bool force_ro, int error, in ext4_handle_error() argument
705 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_handle_error()
706 bool continue_fs = !force_ro && test_opt(sb, ERRORS_CONT); in ext4_handle_error()
708 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in ext4_handle_error()
709 if (test_opt(sb, WARN_ON_ERROR)) in ext4_handle_error()
712 if (!continue_fs && !sb_rdonly(sb)) { in ext4_handle_error()
713 set_bit(EXT4_FLAGS_SHUTDOWN, &EXT4_SB(sb)->s_ext4_flags); in ext4_handle_error()
718 if (!bdev_read_only(sb->s_bdev)) { in ext4_handle_error()
719 save_error_info(sb, error, ino, block, func, line); in ext4_handle_error()
727 schedule_work(&EXT4_SB(sb)->s_sb_upd_work); in ext4_handle_error()
729 ext4_commit_super(sb); in ext4_handle_error()
737 if (test_opt(sb, ERRORS_PANIC) && !system_going_down()) { in ext4_handle_error()
739 sb->s_id); in ext4_handle_error()
742 if (sb_rdonly(sb) || continue_fs) in ext4_handle_error()
745 ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only"); in ext4_handle_error()
751 sb->s_flags |= SB_RDONLY; in ext4_handle_error()
811 #define ext4_error_ratelimit(sb) \ argument
812 ___ratelimit(&(EXT4_SB(sb)->s_err_ratelimit_state), \
815 void __ext4_error(struct super_block *sb, const char *function, in __ext4_error() argument
822 if (unlikely(ext4_forced_shutdown(sb))) in __ext4_error()
825 trace_ext4_error(sb, function, line); in __ext4_error()
826 if (ext4_error_ratelimit(sb)) { in __ext4_error()
832 sb->s_id, function, line, current->comm, &vaf); in __ext4_error()
835 fsnotify_sb_error(sb, NULL, error ? error : EFSCORRUPTED); in __ext4_error()
837 ext4_handle_error(sb, force_ro, error, 0, block, function, line); in __ext4_error()
913 const char *ext4_decode_error(struct super_block *sb, int errno, in ext4_decode_error() argument
932 if (!sb || (EXT4_SB(sb)->s_journal && in ext4_decode_error()
933 EXT4_SB(sb)->s_journal->j_flags & JBD2_ABORT)) in ext4_decode_error()
956 void __ext4_std_error(struct super_block *sb, const char *function, in __ext4_std_error() argument
962 if (unlikely(ext4_forced_shutdown(sb))) in __ext4_std_error()
968 if (errno == -EROFS && journal_current_handle() == NULL && sb_rdonly(sb)) in __ext4_std_error()
971 if (ext4_error_ratelimit(sb)) { in __ext4_std_error()
972 errstr = ext4_decode_error(sb, errno, nbuf); in __ext4_std_error()
974 sb->s_id, function, line, errstr); in __ext4_std_error()
976 fsnotify_sb_error(sb, NULL, errno ? errno : EFSCORRUPTED); in __ext4_std_error()
978 ext4_handle_error(sb, false, -errno, 0, 0, function, line); in __ext4_std_error()
981 void __ext4_msg(struct super_block *sb, in __ext4_msg() argument
987 if (sb) { in __ext4_msg()
988 atomic_inc(&EXT4_SB(sb)->s_msg_count); in __ext4_msg()
989 if (!___ratelimit(&(EXT4_SB(sb)->s_msg_ratelimit_state), in __ext4_msg()
997 if (sb) in __ext4_msg()
998 printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf); in __ext4_msg()
1004 static int ext4_warning_ratelimit(struct super_block *sb) in ext4_warning_ratelimit() argument
1006 atomic_inc(&EXT4_SB(sb)->s_warning_count); in ext4_warning_ratelimit()
1007 return ___ratelimit(&(EXT4_SB(sb)->s_warning_ratelimit_state), in ext4_warning_ratelimit()
1011 void __ext4_warning(struct super_block *sb, const char *function, in __ext4_warning() argument
1017 if (!ext4_warning_ratelimit(sb)) in __ext4_warning()
1024 sb->s_id, function, line, &vaf); in __ext4_warning()
1047 struct super_block *sb, ext4_group_t grp, in __ext4_grp_locked_error() argument
1056 if (unlikely(ext4_forced_shutdown(sb))) in __ext4_grp_locked_error()
1059 trace_ext4_error(sb, function, line); in __ext4_grp_locked_error()
1060 if (ext4_error_ratelimit(sb)) { in __ext4_grp_locked_error()
1065 sb->s_id, function, line, grp); in __ext4_grp_locked_error()
1075 if (test_opt(sb, ERRORS_CONT)) { in __ext4_grp_locked_error()
1076 if (test_opt(sb, WARN_ON_ERROR)) in __ext4_grp_locked_error()
1078 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in __ext4_grp_locked_error()
1079 if (!bdev_read_only(sb->s_bdev)) { in __ext4_grp_locked_error()
1080 save_error_info(sb, EFSCORRUPTED, ino, block, function, in __ext4_grp_locked_error()
1082 schedule_work(&EXT4_SB(sb)->s_sb_upd_work); in __ext4_grp_locked_error()
1086 ext4_unlock_group(sb, grp); in __ext4_grp_locked_error()
1087 ext4_handle_error(sb, false, EFSCORRUPTED, ino, block, function, line); in __ext4_grp_locked_error()
1099 ext4_lock_group(sb, grp); in __ext4_grp_locked_error()
1103 void ext4_mark_group_bitmap_corrupted(struct super_block *sb, in ext4_mark_group_bitmap_corrupted() argument
1107 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_mark_group_bitmap_corrupted()
1108 struct ext4_group_info *grp = ext4_get_group_info(sb, group); in ext4_mark_group_bitmap_corrupted()
1109 struct ext4_group_desc *gdp = ext4_get_group_desc(sb, group, NULL); in ext4_mark_group_bitmap_corrupted()
1128 count = ext4_free_inodes_count(sb, gdp); in ext4_mark_group_bitmap_corrupted()
1135 void ext4_update_dynamic_rev(struct super_block *sb) in ext4_update_dynamic_rev() argument
1137 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in ext4_update_dynamic_rev()
1142 ext4_warning(sb, in ext4_update_dynamic_rev()
1165 static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi) in dump_orphan_list() argument
1169 ext4_msg(sb, KERN_ERR, "sb orphan head is %d", in dump_orphan_list()
1184 static int ext4_quota_off(struct super_block *sb, int type);
1186 static inline void ext4_quotas_off(struct super_block *sb, int type) in ext4_quotas_off() argument
1192 ext4_quota_off(sb, type); in ext4_quotas_off()
1199 static inline char *get_qf_name(struct super_block *sb, in get_qf_name() argument
1204 lockdep_is_held(&sb->s_umount)); in get_qf_name()
1207 static inline void ext4_quotas_off(struct super_block *sb, int type) in ext4_quotas_off() argument
1283 static void ext4_put_super(struct super_block *sb) in ext4_put_super() argument
1285 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_put_super()
1300 ext4_unregister_sysfs(sb); in ext4_put_super()
1303 ext4_msg(sb, KERN_INFO, "unmounting filesystem %pU.", in ext4_put_super()
1304 &sb->s_uuid); in ext4_put_super()
1306 ext4_unregister_li_request(sb); in ext4_put_super()
1307 ext4_quotas_off(sb, EXT4_MAXQUOTAS); in ext4_put_super()
1311 ext4_release_orphan_info(sb); in ext4_put_super()
1318 ext4_abort(sb, -err, "Couldn't clean up the journal"); in ext4_put_super()
1324 ext4_release_system_zone(sb); in ext4_put_super()
1325 ext4_mb_release(sb); in ext4_put_super()
1326 ext4_ext_release(sb); in ext4_put_super()
1328 if (!sb_rdonly(sb) && !aborted) { in ext4_put_super()
1329 ext4_clear_feature_journal_needs_recovery(sb); in ext4_put_super()
1330 ext4_clear_feature_orphan_present(sb); in ext4_put_super()
1333 if (!sb_rdonly(sb)) in ext4_put_super()
1334 ext4_commit_super(sb); in ext4_put_super()
1341 kfree(get_qf_name(sb, sbi, i)); in ext4_put_super()
1349 dump_orphan_list(sb, sbi); in ext4_put_super()
1352 sync_blockdev(sb->s_bdev); in ext4_put_super()
1353 invalidate_bdev(sb->s_bdev); in ext4_put_super()
1373 sb->s_fs_info = NULL; in ext4_put_super()
1386 utf8_unload(sb->s_encoding); in ext4_put_super()
1396 static struct inode *ext4_alloc_inode(struct super_block *sb) in ext4_alloc_inode() argument
1400 ei = alloc_inode_sb(sb, ext4_inode_cachep, GFP_NOFS); in ext4_alloc_inode()
1475 static void ext4_shutdown(struct super_block *sb) in ext4_shutdown() argument
1477 ext4_force_shutdown(sb, EXT4_GOING_FLAGS_NOLOGFLUSH); in ext4_shutdown()
1533 static struct inode *ext4_nfs_get_inode(struct super_block *sb, in ext4_nfs_get_inode() argument
1542 inode = ext4_iget(sb, ino, EXT4_IGET_HANDLE); in ext4_nfs_get_inode()
1553 static struct dentry *ext4_fh_to_dentry(struct super_block *sb, struct fid *fid, in ext4_fh_to_dentry() argument
1556 return generic_fh_to_dentry(sb, fid, fh_len, fh_type, in ext4_fh_to_dentry()
1560 static struct dentry *ext4_fh_to_parent(struct super_block *sb, struct fid *fid, in ext4_fh_to_parent() argument
1563 return generic_fh_to_parent(sb, fid, fh_len, fh_type, in ext4_fh_to_parent()
1585 static int ext4_write_info(struct super_block *sb, int type);
1586 static int ext4_quota_on(struct super_block *sb, int type, int format_id,
1588 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
1590 static ssize_t ext4_quota_write(struct super_block *sb, int type,
1592 static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
2493 static int parse_apply_sb_mount_options(struct super_block *sb, in parse_apply_sb_mount_options() argument
2496 struct ext4_sb_info *sbi = EXT4_SB(sb); in parse_apply_sb_mount_options()
2526 ret = ext4_check_opt_consistency(fc, sb); in parse_apply_sb_mount_options()
2529 ext4_msg(sb, KERN_WARNING, in parse_apply_sb_mount_options()
2541 ext4_apply_options(fc, sb); in parse_apply_sb_mount_options()
2554 struct super_block *sb) in ext4_apply_quota_options() argument
2557 bool quota_feature = ext4_has_feature_quota(sb); in ext4_apply_quota_options()
2559 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_apply_quota_options()
2573 set_opt(sb, QUOTA); in ext4_apply_quota_options()
2576 lockdep_is_held(&sb->s_umount)); in ext4_apply_quota_options()
2591 struct super_block *sb) in ext4_check_quota_consistency() argument
2595 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_quota_consistency()
2596 bool quota_feature = ext4_has_feature_quota(sb); in ext4_check_quota_consistency()
2597 bool quota_loaded = sb_any_quota_loaded(sb); in ext4_check_quota_consistency()
2607 !ext4_has_feature_project(sb)) { in ext4_check_quota_consistency()
2631 strcmp(get_qf_name(sb, sbi, i), in ext4_check_quota_consistency()
2655 usr_qf_name = (get_qf_name(sb, sbi, USRQUOTA) || in ext4_check_quota_consistency()
2657 grp_qf_name = (get_qf_name(sb, sbi, GRPQUOTA) || in ext4_check_quota_consistency()
2661 test_opt(sb, USRQUOTA)); in ext4_check_quota_consistency()
2664 test_opt(sb, GRPQUOTA)); in ext4_check_quota_consistency()
2709 struct super_block *sb) in ext4_check_test_dummy_encryption() argument
2712 const struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_test_dummy_encryption()
2717 if (!ext4_has_feature_encrypt(sb)) { in ext4_check_test_dummy_encryption()
2749 struct super_block *sb) in ext4_apply_test_dummy_encryption() argument
2753 fscrypt_is_dummy_policy_set(&EXT4_SB(sb)->s_dummy_enc_policy)) in ext4_apply_test_dummy_encryption()
2755 EXT4_SB(sb)->s_dummy_enc_policy = ctx->dummy_enc_policy; in ext4_apply_test_dummy_encryption()
2757 ext4_msg(sb, KERN_WARNING, "Test dummy encryption mode enabled"); in ext4_apply_test_dummy_encryption()
2761 struct super_block *sb) in ext4_check_opt_consistency() argument
2768 if ((ctx->opt_flags & MOPT_NO_EXT2) && IS_EXT2_SB(sb)) { in ext4_check_opt_consistency()
2773 if ((ctx->opt_flags & MOPT_NO_EXT3) && IS_EXT3_SB(sb)) { in ext4_check_opt_consistency()
2796 err = ext4_check_test_dummy_encryption(fc, sb); in ext4_check_opt_consistency()
2807 test_opt(sb, DATA_FLAGS)) { in ext4_check_opt_consistency()
2816 (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)) { in ext4_check_opt_consistency()
2841 return ext4_check_quota_consistency(fc, sb); in ext4_check_opt_consistency()
2844 static void ext4_apply_options(struct fs_context *fc, struct super_block *sb) in ext4_apply_options() argument
2853 sb->s_flags &= ~ctx->mask_s_flags; in ext4_apply_options()
2854 sb->s_flags |= ctx->vals_s_flags; in ext4_apply_options()
2872 ext4_apply_quota_options(fc, sb); in ext4_apply_options()
2873 ext4_apply_test_dummy_encryption(ctx, sb); in ext4_apply_options()
2905 struct super_block *sb) in ext4_show_quota_options() argument
2908 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_show_quota_options()
2954 static int _ext4_show_options(struct seq_file *seq, struct super_block *sb, in _ext4_show_options() argument
2957 struct ext4_sb_info *sbi = EXT4_SB(sb); in _ext4_show_options()
3005 if (test_opt(sb, ERRORS_RO) && def_errors != EXT4_ERRORS_RO) in _ext4_show_options()
3007 if (test_opt(sb, ERRORS_CONT) && def_errors != EXT4_ERRORS_CONTINUE) in _ext4_show_options()
3009 if (test_opt(sb, ERRORS_PANIC) && def_errors != EXT4_ERRORS_PANIC) in _ext4_show_options()
3021 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) in _ext4_show_options()
3023 else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) in _ext4_show_options()
3025 else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA) in _ext4_show_options()
3033 if (test_opt(sb, INIT_INODE_TABLE) && (nodefs || in _ext4_show_options()
3038 if (test_opt(sb, DATA_ERR_ABORT)) in _ext4_show_options()
3041 fscrypt_show_test_dummy_encryption(seq, sep, sb); in _ext4_show_options()
3043 if (sb->s_flags & SB_INLINECRYPT) in _ext4_show_options()
3046 if (test_opt(sb, DAX_ALWAYS)) { in _ext4_show_options()
3047 if (IS_EXT2_SB(sb)) in _ext4_show_options()
3051 } else if (test_opt2(sb, DAX_NEVER)) { in _ext4_show_options()
3053 } else if (test_opt2(sb, DAX_INODE)) { in _ext4_show_options()
3058 !test_opt2(sb, MB_OPTIMIZE_SCAN)) { in _ext4_show_options()
3061 test_opt2(sb, MB_OPTIMIZE_SCAN)) { in _ext4_show_options()
3065 ext4_show_quota_options(seq, sb); in _ext4_show_options()
3076 struct super_block *sb = seq->private; in ext4_seq_options_show() local
3079 seq_puts(seq, sb_rdonly(sb) ? "ro" : "rw"); in ext4_seq_options_show()
3080 rc = _ext4_show_options(seq, sb, 1); in ext4_seq_options_show()
3085 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es, in ext4_setup_super() argument
3088 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_setup_super()
3092 ext4_msg(sb, KERN_ERR, "revision level too high, " in ext4_setup_super()
3100 ext4_msg(sb, KERN_WARNING, "warning: mounting unchecked fs, " in ext4_setup_super()
3103 ext4_msg(sb, KERN_WARNING, in ext4_setup_super()
3109 ext4_msg(sb, KERN_WARNING, in ext4_setup_super()
3115 ext4_msg(sb, KERN_WARNING, in ext4_setup_super()
3125 ext4_set_feature_journal_needs_recovery(sb); in ext4_setup_super()
3126 if (ext4_has_feature_orphan_file(sb)) in ext4_setup_super()
3127 ext4_set_feature_orphan_present(sb); in ext4_setup_super()
3130 err = ext4_commit_super(sb); in ext4_setup_super()
3132 if (test_opt(sb, DEBUG)) in ext4_setup_super()
3135 sb->s_blocksize, in ext4_setup_super()
3137 EXT4_BLOCKS_PER_GROUP(sb), in ext4_setup_super()
3138 EXT4_INODES_PER_GROUP(sb), in ext4_setup_super()
3143 int ext4_alloc_flex_bg_array(struct super_block *sb, ext4_group_t ngroup) in ext4_alloc_flex_bg_array() argument
3145 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_alloc_flex_bg_array()
3159 ext4_msg(sb, KERN_ERR, in ext4_alloc_flex_bg_array()
3171 ext4_msg(sb, KERN_ERR, in ext4_alloc_flex_bg_array()
3190 static int ext4_fill_flex_info(struct super_block *sb) in ext4_fill_flex_info() argument
3192 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_fill_flex_info()
3204 err = ext4_alloc_flex_bg_array(sb, sbi->s_groups_count); in ext4_fill_flex_info()
3209 gdp = ext4_get_group_desc(sb, i, NULL); in ext4_fill_flex_info()
3213 atomic_add(ext4_free_inodes_count(sb, gdp), &fg->free_inodes); in ext4_fill_flex_info()
3214 atomic64_add(ext4_free_group_clusters(sb, gdp), in ext4_fill_flex_info()
3216 atomic_add(ext4_used_dirs_count(sb, gdp), &fg->used_dirs); in ext4_fill_flex_info()
3224 static __le16 ext4_group_desc_csum(struct super_block *sb, __u32 block_group, in ext4_group_desc_csum() argument
3230 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_group_desc_csum()
3252 if (!ext4_has_feature_gdt_csum(sb)) in ext4_group_desc_csum()
3260 if (ext4_has_feature_64bit(sb) && offset < sbi->s_desc_size) in ext4_group_desc_csum()
3268 int ext4_group_desc_csum_verify(struct super_block *sb, __u32 block_group, in ext4_group_desc_csum_verify() argument
3271 if (ext4_has_group_desc_csum(sb) && in ext4_group_desc_csum_verify()
3272 (gdp->bg_checksum != ext4_group_desc_csum(sb, block_group, gdp))) in ext4_group_desc_csum_verify()
3278 void ext4_group_desc_csum_set(struct super_block *sb, __u32 block_group, in ext4_group_desc_csum_set() argument
3281 if (!ext4_has_group_desc_csum(sb)) in ext4_group_desc_csum_set()
3283 gdp->bg_checksum = ext4_group_desc_csum(sb, block_group, gdp); in ext4_group_desc_csum_set()
3287 static int ext4_check_descriptors(struct super_block *sb, in ext4_check_descriptors() argument
3291 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_descriptors()
3294 ext4_fsblk_t last_bg_block = sb_block + ext4_bg_num_gdb(sb, 0); in ext4_check_descriptors()
3301 if (ext4_has_feature_flex_bg(sb)) in ext4_check_descriptors()
3307 struct ext4_group_desc *gdp = ext4_get_group_desc(sb, i, NULL); in ext4_check_descriptors()
3313 (EXT4_BLOCKS_PER_GROUP(sb) - 1); in ext4_check_descriptors()
3319 block_bitmap = ext4_block_bitmap(sb, gdp); in ext4_check_descriptors()
3321 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3324 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3329 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3332 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3336 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3341 inode_bitmap = ext4_inode_bitmap(sb, gdp); in ext4_check_descriptors()
3343 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3346 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3351 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3354 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3358 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3363 inode_table = ext4_inode_table(sb, gdp); in ext4_check_descriptors()
3365 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3368 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3373 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3376 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3381 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3386 ext4_lock_group(sb, i); in ext4_check_descriptors()
3387 if (!ext4_group_desc_csum_verify(sb, i, gdp)) { in ext4_check_descriptors()
3388 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3390 i, le16_to_cpu(ext4_group_desc_csum(sb, i, in ext4_check_descriptors()
3392 if (!sb_rdonly(sb)) { in ext4_check_descriptors()
3393 ext4_unlock_group(sb, i); in ext4_check_descriptors()
3397 ext4_unlock_group(sb, i); in ext4_check_descriptors()
3399 first_block += EXT4_BLOCKS_PER_GROUP(sb); in ext4_check_descriptors()
3530 static ext4_fsblk_t descriptor_loc(struct super_block *sb, in descriptor_loc() argument
3533 struct ext4_sb_info *sbi = EXT4_SB(sb); in descriptor_loc()
3539 if (!ext4_has_feature_meta_bg(sb) || nr < first_meta_bg) in descriptor_loc()
3542 if (ext4_bg_has_super(sb, bg)) in descriptor_loc()
3551 if (sb->s_blocksize == 1024 && nr == 0 && in descriptor_loc()
3555 return (has_super + ext4_group_first_block_no(sb, bg)); in descriptor_loc()
3601 int ext4_feature_set_ok(struct super_block *sb, int readonly) in ext4_feature_set_ok() argument
3603 if (ext4_has_unknown_ext4_incompat_features(sb)) { in ext4_feature_set_ok()
3604 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3607 (le32_to_cpu(EXT4_SB(sb)->s_es->s_feature_incompat) & in ext4_feature_set_ok()
3613 if (ext4_has_feature_casefold(sb)) { in ext4_feature_set_ok()
3614 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3624 if (ext4_has_feature_readonly(sb)) { in ext4_feature_set_ok()
3625 ext4_msg(sb, KERN_INFO, "filesystem is read-only"); in ext4_feature_set_ok()
3626 sb->s_flags |= SB_RDONLY; in ext4_feature_set_ok()
3631 if (ext4_has_unknown_ext4_ro_compat_features(sb)) { in ext4_feature_set_ok()
3632 ext4_msg(sb, KERN_ERR, "couldn't mount RDWR because of " in ext4_feature_set_ok()
3634 (le32_to_cpu(EXT4_SB(sb)->s_es->s_feature_ro_compat) & in ext4_feature_set_ok()
3638 if (ext4_has_feature_bigalloc(sb) && !ext4_has_feature_extents(sb)) { in ext4_feature_set_ok()
3639 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3646 if (!readonly && (ext4_has_feature_quota(sb) || in ext4_feature_set_ok()
3647 ext4_has_feature_project(sb))) { in ext4_feature_set_ok()
3648 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3663 struct super_block *sb = sbi->s_sb; in print_daily_error_info() local
3668 ext4_msg(sb, KERN_NOTICE, "error count since last fsck: %u", in print_daily_error_info()
3672 sb->s_id, in print_daily_error_info()
3687 sb->s_id, in print_daily_error_info()
3707 struct super_block *sb = elr->lr_super; in ext4_run_li_request() local
3708 ext4_group_t ngroups = EXT4_SB(sb)->s_groups_count; in ext4_run_li_request()
3712 int nr = EXT4_SB(sb)->s_mb_prefetch; in ext4_run_li_request()
3716 elr->lr_next_group = ext4_mb_prefetch(sb, group, nr, &prefetch_ios); in ext4_run_li_request()
3717 ext4_mb_prefetch_fini(sb, elr->lr_next_group, nr); in ext4_run_li_request()
3718 trace_ext4_prefetch_bitmaps(sb, group, elr->lr_next_group, nr); in ext4_run_li_request()
3722 !sb_rdonly(sb) && test_opt(sb, INIT_INODE_TABLE)) { in ext4_run_li_request()
3732 gdp = ext4_get_group_desc(sb, group, NULL); in ext4_run_li_request()
3747 ret = ext4_init_inode_table(sb, group, in ext4_run_li_request()
3749 trace_ext4_lazy_itable_init(sb, group); in ext4_run_li_request()
3774 static void ext4_unregister_li_request(struct super_block *sb) in ext4_unregister_li_request() argument
3783 ext4_remove_li_request(EXT4_SB(sb)->s_li_request); in ext4_unregister_li_request()
3938 static ext4_group_t ext4_has_uninit_itable(struct super_block *sb) in ext4_has_uninit_itable() argument
3940 ext4_group_t group, ngroups = EXT4_SB(sb)->s_groups_count; in ext4_has_uninit_itable()
3943 if (!ext4_has_group_desc_csum(sb)) in ext4_has_uninit_itable()
3947 gdp = ext4_get_group_desc(sb, group, NULL); in ext4_has_uninit_itable()
3976 static struct ext4_li_request *ext4_li_request_new(struct super_block *sb, in ext4_li_request_new() argument
3985 elr->lr_super = sb; in ext4_li_request_new()
3987 if (test_opt(sb, NO_PREFETCH_BLOCK_BITMAPS)) { in ext4_li_request_new()
4003 int ext4_register_li_request(struct super_block *sb, in ext4_register_li_request() argument
4006 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_register_li_request()
4021 if (sb_rdonly(sb) || in ext4_register_li_request()
4022 (test_opt(sb, NO_PREFETCH_BLOCK_BITMAPS) && in ext4_register_li_request()
4023 (first_not_zeroed == ngroups || !test_opt(sb, INIT_INODE_TABLE)))) in ext4_register_li_request()
4026 elr = ext4_li_request_new(sb, first_not_zeroed); in ext4_register_li_request()
4078 static int set_journal_csum_feature_set(struct super_block *sb) in set_journal_csum_feature_set() argument
4082 struct ext4_sb_info *sbi = EXT4_SB(sb); in set_journal_csum_feature_set()
4084 if (ext4_has_metadata_csum(sb)) { in set_journal_csum_feature_set()
4098 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in set_journal_csum_feature_set()
4103 } else if (test_opt(sb, JOURNAL_CHECKSUM)) { in set_journal_csum_feature_set()
4132 static int count_overhead(struct super_block *sb, ext4_group_t grp, in count_overhead() argument
4135 struct ext4_sb_info *sbi = EXT4_SB(sb); in count_overhead()
4138 ext4_group_t i, ngroups = ext4_get_groups_count(sb); in count_overhead()
4140 int has_super = ext4_bg_has_super(sb, grp); in count_overhead()
4142 if (!ext4_has_feature_bigalloc(sb)) in count_overhead()
4143 return (has_super + ext4_bg_num_gdb(sb, grp) + in count_overhead()
4148 (grp * EXT4_BLOCKS_PER_GROUP(sb)); in count_overhead()
4149 last_block = first_block + EXT4_BLOCKS_PER_GROUP(sb) - 1; in count_overhead()
4151 gdp = ext4_get_group_desc(sb, i, NULL); in count_overhead()
4152 b = ext4_block_bitmap(sb, gdp); in count_overhead()
4157 b = ext4_inode_bitmap(sb, gdp); in count_overhead()
4162 b = ext4_inode_table(sb, gdp); in count_overhead()
4172 if (ext4_bg_has_super(sb, grp)) { in count_overhead()
4176 j = ext4_bg_num_gdb(sb, grp); in count_overhead()
4177 if (s + j > EXT4_BLOCKS_PER_GROUP(sb)) { in count_overhead()
4178 ext4_error(sb, "Invalid number of block group " in count_overhead()
4180 j = EXT4_BLOCKS_PER_GROUP(sb) - s; in count_overhead()
4188 return EXT4_CLUSTERS_PER_GROUP(sb) - in count_overhead()
4189 ext4_count_free(buf, EXT4_CLUSTERS_PER_GROUP(sb) / 8); in count_overhead()
4195 int ext4_calculate_overhead(struct super_block *sb) in ext4_calculate_overhead() argument
4197 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_calculate_overhead()
4201 ext4_group_t i, ngroups = ext4_get_groups_count(sb); in ext4_calculate_overhead()
4225 blks = count_overhead(sb, i, buf); in ext4_calculate_overhead()
4238 else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) { in ext4_calculate_overhead()
4240 j_inode = ext4_get_journal_inode(sb, j_inum); in ext4_calculate_overhead()
4242 j_blocks = j_inode->i_size >> sb->s_blocksize_bits; in ext4_calculate_overhead()
4246 ext4_msg(sb, KERN_ERR, "can't get journal size"); in ext4_calculate_overhead()
4255 static void ext4_set_resv_clusters(struct super_block *sb) in ext4_set_resv_clusters() argument
4258 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_set_resv_clusters()
4266 if (!ext4_has_feature_extents(sb)) in ext4_set_resv_clusters()
4285 static const char *ext4_quota_mode(struct super_block *sb) in ext4_quota_mode() argument
4288 if (!ext4_quota_capable(sb)) in ext4_quota_mode()
4291 if (EXT4_SB(sb)->s_journal && ext4_is_quota_journalled(sb)) in ext4_quota_mode()
4300 static void ext4_setup_csum_trigger(struct super_block *sb, in ext4_setup_csum_trigger() argument
4308 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_setup_csum_trigger()
4310 sbi->s_journal_triggers[type].sb = sb; in ext4_setup_csum_trigger()
4324 static struct ext4_sb_info *ext4_alloc_sbi(struct super_block *sb) in ext4_alloc_sbi() argument
4332 sbi->s_daxdev = fs_dax_get_by_bdev(sb->s_bdev, &sbi->s_dax_part_off, in ext4_alloc_sbi()
4341 sb->s_fs_info = sbi; in ext4_alloc_sbi()
4342 sbi->s_sb = sb; in ext4_alloc_sbi()
4350 static void ext4_set_def_opts(struct super_block *sb, in ext4_set_def_opts() argument
4357 set_opt(sb, INIT_INODE_TABLE); in ext4_set_def_opts()
4359 set_opt(sb, DEBUG); in ext4_set_def_opts()
4361 set_opt(sb, GRPID); in ext4_set_def_opts()
4363 set_opt(sb, NO_UID32); in ext4_set_def_opts()
4365 set_opt(sb, XATTR_USER); in ext4_set_def_opts()
4367 set_opt(sb, POSIX_ACL); in ext4_set_def_opts()
4369 if (ext4_has_feature_fast_commit(sb)) in ext4_set_def_opts()
4370 set_opt2(sb, JOURNAL_FAST_COMMIT); in ext4_set_def_opts()
4372 if (ext4_has_metadata_csum(sb)) in ext4_set_def_opts()
4373 set_opt(sb, JOURNAL_CHECKSUM); in ext4_set_def_opts()
4376 set_opt(sb, JOURNAL_DATA); in ext4_set_def_opts()
4378 set_opt(sb, ORDERED_DATA); in ext4_set_def_opts()
4380 set_opt(sb, WRITEBACK_DATA); in ext4_set_def_opts()
4383 set_opt(sb, ERRORS_PANIC); in ext4_set_def_opts()
4385 set_opt(sb, ERRORS_CONT); in ext4_set_def_opts()
4387 set_opt(sb, ERRORS_RO); in ext4_set_def_opts()
4389 set_opt(sb, BLOCK_VALIDITY); in ext4_set_def_opts()
4391 set_opt(sb, DISCARD); in ext4_set_def_opts()
4394 set_opt(sb, BARRIER); in ext4_set_def_opts()
4400 if (!IS_EXT3_SB(sb) && !IS_EXT2_SB(sb) && in ext4_set_def_opts()
4402 set_opt(sb, DELALLOC); in ext4_set_def_opts()
4404 if (sb->s_blocksize == PAGE_SIZE) in ext4_set_def_opts()
4405 set_opt(sb, DIOREAD_NOLOCK); in ext4_set_def_opts()
4408 static int ext4_handle_clustersize(struct super_block *sb) in ext4_handle_clustersize() argument
4410 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_handle_clustersize()
4416 if (ext4_has_feature_bigalloc(sb)) { in ext4_handle_clustersize()
4417 if (clustersize < sb->s_blocksize) { in ext4_handle_clustersize()
4418 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4420 "block size (%lu)", clustersize, sb->s_blocksize); in ext4_handle_clustersize()
4427 if (sbi->s_clusters_per_group > sb->s_blocksize * 8) { in ext4_handle_clustersize()
4428 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4434 (sbi->s_clusters_per_group * (clustersize / sb->s_blocksize))) { in ext4_handle_clustersize()
4435 ext4_msg(sb, KERN_ERR, "blocks per group (%lu) and " in ext4_handle_clustersize()
4442 if (clustersize != sb->s_blocksize) { in ext4_handle_clustersize()
4443 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4445 "block size (%lu)", clustersize, sb->s_blocksize); in ext4_handle_clustersize()
4448 if (sbi->s_blocks_per_group > sb->s_blocksize * 8) { in ext4_handle_clustersize()
4449 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4457 sbi->s_cluster_ratio = clustersize / sb->s_blocksize; in ext4_handle_clustersize()
4461 set_opt2(sb, STD_GROUP_SIZE); in ext4_handle_clustersize()
4466 static void ext4_fast_commit_init(struct super_block *sb) in ext4_fast_commit_init() argument
4468 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_fast_commit_init()
4477 ext4_clear_mount_flag(sb, EXT4_MF_FC_INELIGIBLE); in ext4_fast_commit_init()
4490 static int ext4_inode_info_init(struct super_block *sb, in ext4_inode_info_init() argument
4493 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_inode_info_init()
4502 ext4_msg(sb, KERN_ERR, "invalid first ino: %u", in ext4_inode_info_init()
4508 (sbi->s_inode_size > sb->s_blocksize)) { in ext4_inode_info_init()
4509 ext4_msg(sb, KERN_ERR, in ext4_inode_info_init()
4512 ext4_msg(sb, KERN_ERR, "blocksize: %lu", sb->s_blocksize); in ext4_inode_info_init()
4523 sb->s_time_gran = 1; in ext4_inode_info_init()
4524 sb->s_time_max = EXT4_EXTRA_TIMESTAMP_MAX; in ext4_inode_info_init()
4526 sb->s_time_gran = NSEC_PER_SEC; in ext4_inode_info_init()
4527 sb->s_time_max = EXT4_NON_EXTRA_TIMESTAMP_MAX; in ext4_inode_info_init()
4529 sb->s_time_min = EXT4_TIMESTAMP_MIN; in ext4_inode_info_init()
4535 if (ext4_has_feature_extra_isize(sb)) { in ext4_inode_info_init()
4541 ext4_msg(sb, KERN_ERR, in ext4_inode_info_init()
4550 ext4_msg(sb, KERN_ERR, in ext4_inode_info_init()
4563 static int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es) in ext4_encoding_init() argument
4569 if (!ext4_has_feature_casefold(sb) || sb->s_encoding) in ext4_encoding_init()
4574 ext4_msg(sb, KERN_ERR, in ext4_encoding_init()
4581 ext4_msg(sb, KERN_ERR, in ext4_encoding_init()
4591 ext4_msg(sb, KERN_INFO,"Using encoding defined by superblock: " in ext4_encoding_init()
4598 sb->s_encoding = encoding; in ext4_encoding_init()
4599 sb->s_encoding_flags = encoding_flags; in ext4_encoding_init()
4604 static inline int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es) in ext4_encoding_init() argument
4610 static int ext4_init_metadata_csum(struct super_block *sb, struct ext4_super_block *es) in ext4_init_metadata_csum() argument
4612 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_init_metadata_csum()
4615 if (ext4_has_feature_metadata_csum(sb) && in ext4_init_metadata_csum()
4616 ext4_has_feature_gdt_csum(sb)) in ext4_init_metadata_csum()
4617 ext4_warning(sb, "metadata_csum and uninit_bg are " in ext4_init_metadata_csum()
4621 if (!ext4_verify_csum_type(sb, es)) { in ext4_init_metadata_csum()
4622 ext4_msg(sb, KERN_ERR, "VFS: Found ext4 filesystem with " in ext4_init_metadata_csum()
4626 ext4_setup_csum_trigger(sb, EXT4_JTR_ORPHAN_FILE, in ext4_init_metadata_csum()
4633 ext4_msg(sb, KERN_ERR, "Cannot load crc32c driver."); in ext4_init_metadata_csum()
4639 if (!ext4_superblock_csum_verify(sb, es)) { in ext4_init_metadata_csum()
4640 ext4_msg(sb, KERN_ERR, "VFS: Found ext4 filesystem with " in ext4_init_metadata_csum()
4646 if (ext4_has_feature_csum_seed(sb)) in ext4_init_metadata_csum()
4648 else if (ext4_has_metadata_csum(sb) || ext4_has_feature_ea_inode(sb)) in ext4_init_metadata_csum()
4654 static int ext4_check_feature_compatibility(struct super_block *sb, in ext4_check_feature_compatibility() argument
4658 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_feature_compatibility()
4661 (ext4_has_compat_features(sb) || in ext4_check_feature_compatibility()
4662 ext4_has_ro_compat_features(sb) || in ext4_check_feature_compatibility()
4663 ext4_has_incompat_features(sb))) in ext4_check_feature_compatibility()
4664 ext4_msg(sb, KERN_WARNING, in ext4_check_feature_compatibility()
4669 set_opt2(sb, HURD_COMPAT); in ext4_check_feature_compatibility()
4670 if (ext4_has_feature_64bit(sb)) { in ext4_check_feature_compatibility()
4671 ext4_msg(sb, KERN_ERR, in ext4_check_feature_compatibility()
4680 if (ext4_has_feature_ea_inode(sb)) { in ext4_check_feature_compatibility()
4681 ext4_msg(sb, KERN_ERR, in ext4_check_feature_compatibility()
4687 if (IS_EXT2_SB(sb)) { in ext4_check_feature_compatibility()
4688 if (ext2_feature_set_ok(sb)) in ext4_check_feature_compatibility()
4689 ext4_msg(sb, KERN_INFO, "mounting ext2 file system " in ext4_check_feature_compatibility()
4696 if (silent && ext4_feature_set_ok(sb, sb_rdonly(sb))) in ext4_check_feature_compatibility()
4698 ext4_msg(sb, KERN_ERR, "couldn't mount as ext2 due " in ext4_check_feature_compatibility()
4704 if (IS_EXT3_SB(sb)) { in ext4_check_feature_compatibility()
4705 if (ext3_feature_set_ok(sb)) in ext4_check_feature_compatibility()
4706 ext4_msg(sb, KERN_INFO, "mounting ext3 file system " in ext4_check_feature_compatibility()
4713 if (silent && ext4_feature_set_ok(sb, sb_rdonly(sb))) in ext4_check_feature_compatibility()
4715 ext4_msg(sb, KERN_ERR, "couldn't mount as ext3 due " in ext4_check_feature_compatibility()
4726 if (!ext4_feature_set_ok(sb, (sb_rdonly(sb)))) in ext4_check_feature_compatibility()
4730 if (sb->s_blocksize == PAGE_SIZE) in ext4_check_feature_compatibility()
4733 ext4_msg(sb, KERN_ERR, "unsupported blocksize for DAX\n"); in ext4_check_feature_compatibility()
4737 if (ext4_has_feature_inline_data(sb)) { in ext4_check_feature_compatibility()
4738 ext4_msg(sb, KERN_ERR, "Cannot use DAX on a filesystem" in ext4_check_feature_compatibility()
4743 ext4_msg(sb, KERN_ERR, in ext4_check_feature_compatibility()
4749 if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) { in ext4_check_feature_compatibility()
4750 ext4_msg(sb, KERN_ERR, "Unsupported encryption level %d", in ext4_check_feature_compatibility()
4758 static int ext4_check_geometry(struct super_block *sb, in ext4_check_geometry() argument
4761 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_geometry()
4765 if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (sb->s_blocksize / 4)) { in ext4_check_geometry()
4766 ext4_msg(sb, KERN_ERR, in ext4_check_geometry()
4775 err = generic_check_addressable(sb->s_blocksize_bits, in ext4_check_geometry()
4778 ext4_msg(sb, KERN_ERR, "filesystem" in ext4_check_geometry()
4784 blocks_count = sb_bdev_nr_blocks(sb); in ext4_check_geometry()
4786 ext4_msg(sb, KERN_WARNING, "bad geometry: block count %llu " in ext4_check_geometry()
4797 ext4_msg(sb, KERN_WARNING, "bad geometry: first data " in ext4_check_geometry()
4805 ext4_msg(sb, KERN_WARNING, "bad geometry: first data " in ext4_check_geometry()
4812 EXT4_BLOCKS_PER_GROUP(sb) - 1); in ext4_check_geometry()
4813 do_div(blocks_count, EXT4_BLOCKS_PER_GROUP(sb)); in ext4_check_geometry()
4814 if (blocks_count > ((uint64_t)1<<32) - EXT4_DESC_PER_BLOCK(sb)) { in ext4_check_geometry()
4815 ext4_msg(sb, KERN_WARNING, "groups count too large: %llu " in ext4_check_geometry()
4820 EXT4_BLOCKS_PER_GROUP(sb)); in ext4_check_geometry()
4825 (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb))); in ext4_check_geometry()
4828 ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu", in ext4_check_geometry()
4837 static int ext4_group_desc_init(struct super_block *sb, in ext4_group_desc_init() argument
4842 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_group_desc_init()
4847 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / in ext4_group_desc_init()
4848 EXT4_DESC_PER_BLOCK(sb); in ext4_group_desc_init()
4849 if (ext4_has_feature_meta_bg(sb)) { in ext4_group_desc_init()
4851 ext4_msg(sb, KERN_WARNING, in ext4_group_desc_init()
4863 ext4_msg(sb, KERN_ERR, "not enough memory"); in ext4_group_desc_init()
4871 block = descriptor_loc(sb, logical_sb_block, i); in ext4_group_desc_init()
4872 ext4_sb_breadahead_unmovable(sb, block); in ext4_group_desc_init()
4878 block = descriptor_loc(sb, logical_sb_block, i); in ext4_group_desc_init()
4879 bh = ext4_sb_bread_unmovable(sb, block); in ext4_group_desc_init()
4881 ext4_msg(sb, KERN_ERR, in ext4_group_desc_init()
4891 if (!ext4_check_descriptors(sb, logical_sb_block, first_not_zeroed)) { in ext4_group_desc_init()
4892 ext4_msg(sb, KERN_ERR, "group descriptors corrupted!"); in ext4_group_desc_init()
4899 static int ext4_load_and_init_journal(struct super_block *sb, in ext4_load_and_init_journal() argument
4903 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_load_and_init_journal()
4906 err = ext4_load_journal(sb, es, ctx->journal_devnum); in ext4_load_and_init_journal()
4910 if (ext4_has_feature_64bit(sb) && in ext4_load_and_init_journal()
4911 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, in ext4_load_and_init_journal()
4913 ext4_msg(sb, KERN_ERR, "Failed to set 64-bit journal feature"); in ext4_load_and_init_journal()
4917 if (!set_journal_csum_feature_set(sb)) { in ext4_load_and_init_journal()
4918 ext4_msg(sb, KERN_ERR, "Failed to set journal checksum " in ext4_load_and_init_journal()
4923 if (test_opt2(sb, JOURNAL_FAST_COMMIT) && in ext4_load_and_init_journal()
4924 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, in ext4_load_and_init_journal()
4926 ext4_msg(sb, KERN_ERR, in ext4_load_and_init_journal()
4933 switch (test_opt(sb, DATA_FLAGS)) { in ext4_load_and_init_journal()
4941 set_opt(sb, ORDERED_DATA); in ext4_load_and_init_journal()
4944 set_opt(sb, JOURNAL_DATA); in ext4_load_and_init_journal()
4953 ext4_msg(sb, KERN_ERR, "Journal does not support " in ext4_load_and_init_journal()
4962 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA && in ext4_load_and_init_journal()
4963 test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in ext4_load_and_init_journal()
4964 ext4_msg(sb, KERN_ERR, "can't mount with " in ext4_load_and_init_journal()
4986 static int ext4_check_journal_data_mode(struct super_block *sb) in ext4_check_journal_data_mode() argument
4988 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) { in ext4_check_journal_data_mode()
4993 clear_opt(sb, DIOREAD_NOLOCK); in ext4_check_journal_data_mode()
4994 clear_opt2(sb, JOURNAL_FAST_COMMIT); in ext4_check_journal_data_mode()
4995 if (test_opt2(sb, EXPLICIT_DELALLOC)) { in ext4_check_journal_data_mode()
4996 ext4_msg(sb, KERN_ERR, "can't mount with " in ext4_check_journal_data_mode()
5000 if (test_opt(sb, DAX_ALWAYS)) { in ext4_check_journal_data_mode()
5001 ext4_msg(sb, KERN_ERR, "can't mount with " in ext4_check_journal_data_mode()
5005 if (ext4_has_feature_encrypt(sb)) { in ext4_check_journal_data_mode()
5006 ext4_msg(sb, KERN_WARNING, in ext4_check_journal_data_mode()
5010 if (test_opt(sb, DELALLOC)) in ext4_check_journal_data_mode()
5011 clear_opt(sb, DELALLOC); in ext4_check_journal_data_mode()
5013 sb->s_iflags |= SB_I_CGROUPWB; in ext4_check_journal_data_mode()
5019 static int ext4_load_super(struct super_block *sb, ext4_fsblk_t *lsb, in ext4_load_super() argument
5022 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_load_super()
5030 blocksize = sb_min_blocksize(sb, EXT4_MIN_BLOCK_SIZE); in ext4_load_super()
5032 ext4_msg(sb, KERN_ERR, "unable to set blocksize"); in ext4_load_super()
5047 bh = ext4_sb_bread_unmovable(sb, logical_sb_block); in ext4_load_super()
5049 ext4_msg(sb, KERN_ERR, "unable to read superblock"); in ext4_load_super()
5058 sb->s_magic = le16_to_cpu(es->s_magic); in ext4_load_super()
5059 if (sb->s_magic != EXT4_SUPER_MAGIC) { in ext4_load_super()
5061 ext4_msg(sb, KERN_ERR, "VFS: Can't find ext4 filesystem"); in ext4_load_super()
5067 ext4_msg(sb, KERN_ERR, in ext4_load_super()
5074 ext4_msg(sb, KERN_ERR, in ext4_load_super()
5086 if (sb->s_blocksize == blocksize) { in ext4_load_super()
5099 if (!sb_set_blocksize(sb, blocksize)) { in ext4_load_super()
5100 ext4_msg(sb, KERN_ERR, "bad block size %d", in ext4_load_super()
5108 bh = ext4_sb_bread_unmovable(sb, logical_sb_block); in ext4_load_super()
5110 ext4_msg(sb, KERN_ERR, "Can't read superblock on 2nd try"); in ext4_load_super()
5118 ext4_msg(sb, KERN_ERR, "Magic mismatch, very weird!"); in ext4_load_super()
5129 static void ext4_hash_info_init(struct super_block *sb) in ext4_hash_info_init() argument
5131 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_hash_info_init()
5139 if (ext4_has_feature_dir_index(sb)) { in ext4_hash_info_init()
5145 if (!sb_rdonly(sb)) in ext4_hash_info_init()
5150 if (!sb_rdonly(sb)) in ext4_hash_info_init()
5158 static int ext4_block_group_meta_init(struct super_block *sb, int silent) in ext4_block_group_meta_init() argument
5160 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_block_group_meta_init()
5164 has_huge_files = ext4_has_feature_huge_file(sb); in ext4_block_group_meta_init()
5165 sbi->s_bitmap_maxbytes = ext4_max_bitmap_size(sb->s_blocksize_bits, in ext4_block_group_meta_init()
5167 sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits, has_huge_files); in ext4_block_group_meta_init()
5170 if (ext4_has_feature_64bit(sb)) { in ext4_block_group_meta_init()
5174 ext4_msg(sb, KERN_ERR, in ext4_block_group_meta_init()
5185 sbi->s_inodes_per_block = sb->s_blocksize / EXT4_INODE_SIZE(sb); in ext4_block_group_meta_init()
5188 ext4_msg(sb, KERN_ERR, "VFS: Can't find ext4 filesystem"); in ext4_block_group_meta_init()
5192 sbi->s_inodes_per_group > sb->s_blocksize * 8) { in ext4_block_group_meta_init()
5193 ext4_msg(sb, KERN_ERR, "invalid inodes per group: %lu\n", in ext4_block_group_meta_init()
5199 sbi->s_desc_per_block = sb->s_blocksize / EXT4_DESC_SIZE(sb); in ext4_block_group_meta_init()
5201 sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb)); in ext4_block_group_meta_init()
5202 sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb)); in ext4_block_group_meta_init()
5207 static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb) in __ext4_fill_super() argument
5210 struct ext4_sb_info *sbi = EXT4_SB(sb); in __ext4_fill_super()
5225 part_stat_read(sb->s_bdev, sectors[STAT_WRITE]); in __ext4_fill_super()
5227 err = ext4_load_super(sb, &logical_sb_block, silent); in __ext4_fill_super()
5234 err = ext4_init_metadata_csum(sb, es); in __ext4_fill_super()
5238 ext4_set_def_opts(sb, es); in __ext4_fill_super()
5252 err = ext4_inode_info_init(sb, es); in __ext4_fill_super()
5256 err = parse_apply_sb_mount_options(sb, ctx); in __ext4_fill_super()
5263 err = ext4_check_opt_consistency(fc, sb); in __ext4_fill_super()
5267 ext4_apply_options(fc, sb); in __ext4_fill_super()
5269 err = ext4_encoding_init(sb, es); in __ext4_fill_super()
5273 err = ext4_check_journal_data_mode(sb); in __ext4_fill_super()
5277 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | in __ext4_fill_super()
5278 (test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0); in __ext4_fill_super()
5281 sb->s_flags |= SB_I_VERSION; in __ext4_fill_super()
5283 err = ext4_check_feature_compatibility(sb, es, silent); in __ext4_fill_super()
5287 err = ext4_block_group_meta_init(sb, silent); in __ext4_fill_super()
5291 ext4_hash_info_init(sb); in __ext4_fill_super()
5293 err = ext4_handle_clustersize(sb); in __ext4_fill_super()
5297 err = ext4_check_geometry(sb, es); in __ext4_fill_super()
5305 err = ext4_group_desc_init(sb, es, logical_sb_block, &first_not_zeroed); in __ext4_fill_super()
5321 ext4_msg(sb, KERN_WARNING, in __ext4_fill_super()
5332 sb->s_op = &ext4_sops; in __ext4_fill_super()
5333 sb->s_export_op = &ext4_export_ops; in __ext4_fill_super()
5334 sb->s_xattr = ext4_xattr_handlers; in __ext4_fill_super()
5336 sb->s_cop = &ext4_cryptops; in __ext4_fill_super()
5339 sb->s_vop = &ext4_verityops; in __ext4_fill_super()
5342 sb->dq_op = &ext4_quota_operations; in __ext4_fill_super()
5343 if (ext4_has_feature_quota(sb)) in __ext4_fill_super()
5344 sb->s_qcop = &dquot_quotactl_sysfile_ops; in __ext4_fill_super()
5346 sb->s_qcop = &ext4_qctl_operations; in __ext4_fill_super()
5347 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; in __ext4_fill_super()
5349 memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); in __ext4_fill_super()
5354 ext4_fast_commit_init(sb); in __ext4_fill_super()
5356 sb->s_root = NULL; in __ext4_fill_super()
5359 ext4_has_feature_orphan_present(sb) || in __ext4_fill_super()
5360 ext4_has_feature_journal_needs_recovery(sb)); in __ext4_fill_super()
5362 if (ext4_has_feature_mmp(sb) && !sb_rdonly(sb)) { in __ext4_fill_super()
5363 err = ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)); in __ext4_fill_super()
5373 if (!test_opt(sb, NOLOAD) && ext4_has_feature_journal(sb)) { in __ext4_fill_super()
5374 err = ext4_load_and_init_journal(sb, es, ctx); in __ext4_fill_super()
5377 } else if (test_opt(sb, NOLOAD) && !sb_rdonly(sb) && in __ext4_fill_super()
5378 ext4_has_feature_journal_needs_recovery(sb)) { in __ext4_fill_super()
5379 ext4_msg(sb, KERN_ERR, "required journal recovery " in __ext4_fill_super()
5384 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in __ext4_fill_super()
5385 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5390 if (test_opt2(sb, EXPLICIT_JOURNAL_CHECKSUM)) { in __ext4_fill_super()
5391 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5396 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5403 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5408 clear_opt(sb, JOURNAL_CHECKSUM); in __ext4_fill_super()
5409 clear_opt(sb, DATA_FLAGS); in __ext4_fill_super()
5410 clear_opt2(sb, JOURNAL_FAST_COMMIT); in __ext4_fill_super()
5415 if (!test_opt(sb, NO_MBCACHE)) { in __ext4_fill_super()
5418 ext4_msg(sb, KERN_ERR, in __ext4_fill_super()
5424 if (ext4_has_feature_ea_inode(sb)) { in __ext4_fill_super()
5427 ext4_msg(sb, KERN_ERR, in __ext4_fill_super()
5448 if (!ext4_has_feature_bigalloc(sb)) in __ext4_fill_super()
5451 err = ext4_calculate_overhead(sb); in __ext4_fill_super()
5460 EXT4_SB(sb)->rsv_conversion_wq = in __ext4_fill_super()
5462 if (!EXT4_SB(sb)->rsv_conversion_wq) { in __ext4_fill_super()
5473 root = ext4_iget(sb, EXT4_ROOT_INO, EXT4_IGET_SPECIAL); in __ext4_fill_super()
5475 ext4_msg(sb, KERN_ERR, "get root inode failed"); in __ext4_fill_super()
5481 ext4_msg(sb, KERN_ERR, "corrupt root inode, run e2fsck"); in __ext4_fill_super()
5487 sb->s_root = d_make_root(root); in __ext4_fill_super()
5488 if (!sb->s_root) { in __ext4_fill_super()
5489 ext4_msg(sb, KERN_ERR, "get root dentry failed"); in __ext4_fill_super()
5494 err = ext4_setup_super(sb, es, sb_rdonly(sb)); in __ext4_fill_super()
5496 sb->s_flags |= SB_RDONLY; in __ext4_fill_super()
5500 ext4_set_resv_clusters(sb); in __ext4_fill_super()
5502 if (test_opt(sb, BLOCK_VALIDITY)) { in __ext4_fill_super()
5503 err = ext4_setup_system_zone(sb); in __ext4_fill_super()
5505 ext4_msg(sb, KERN_ERR, "failed to initialize system " in __ext4_fill_super()
5510 ext4_fc_replay_cleanup(sb); in __ext4_fill_super()
5512 ext4_ext_init(sb); in __ext4_fill_super()
5521 set_opt2(sb, MB_OPTIMIZE_SCAN); in __ext4_fill_super()
5523 clear_opt2(sb, MB_OPTIMIZE_SCAN); in __ext4_fill_super()
5526 err = ext4_mb_init(sb); in __ext4_fill_super()
5528 ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)", in __ext4_fill_super()
5545 if (ext4_has_feature_flex_bg(sb)) in __ext4_fill_super()
5546 if (!ext4_fill_flex_info(sb)) { in __ext4_fill_super()
5547 ext4_msg(sb, KERN_ERR, in __ext4_fill_super()
5554 err = ext4_register_li_request(sb, first_not_zeroed); in __ext4_fill_super()
5558 err = ext4_register_sysfs(sb); in __ext4_fill_super()
5562 err = ext4_init_orphan_info(sb); in __ext4_fill_super()
5567 if (ext4_has_feature_quota(sb) && !sb_rdonly(sb)) { in __ext4_fill_super()
5568 err = ext4_enable_quotas(sb); in __ext4_fill_super()
5579 errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err, in __ext4_fill_super()
5581 EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS; in __ext4_fill_super()
5582 ext4_orphan_cleanup(sb, es); in __ext4_fill_super()
5583 EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS; in __ext4_fill_super()
5591 ext4_superblock_csum_set(sb); in __ext4_fill_super()
5593 ext4_msg(sb, KERN_INFO, "recovery complete"); in __ext4_fill_super()
5594 err = ext4_mark_recovery_complete(sb, es); in __ext4_fill_super()
5599 if (test_opt(sb, DISCARD) && !bdev_max_discard_sectors(sb->s_bdev)) in __ext4_fill_super()
5600 ext4_msg(sb, KERN_WARNING, in __ext4_fill_super()
5616 ext4_quotas_off(sb, EXT4_MAXQUOTAS); in __ext4_fill_super()
5618 ext4_release_orphan_info(sb); in __ext4_fill_super()
5620 ext4_unregister_sysfs(sb); in __ext4_fill_super()
5623 ext4_unregister_li_request(sb); in __ext4_fill_super()
5625 ext4_mb_release(sb); in __ext4_fill_super()
5629 ext4_ext_release(sb); in __ext4_fill_super()
5630 ext4_release_system_zone(sb); in __ext4_fill_super()
5632 dput(sb->s_root); in __ext4_fill_super()
5633 sb->s_root = NULL; in __ext4_fill_super()
5635 ext4_msg(sb, KERN_ERR, "mount failed"); in __ext4_fill_super()
5636 if (EXT4_SB(sb)->rsv_conversion_wq) in __ext4_fill_super()
5637 destroy_workqueue(EXT4_SB(sb)->rsv_conversion_wq); in __ext4_fill_super()
5664 utf8_unload(sb->s_encoding); in __ext4_fill_super()
5669 kfree(get_qf_name(sb, sbi, i)); in __ext4_fill_super()
5675 blkdev_put(sbi->s_journal_bdev, sb); in __ext4_fill_super()
5678 invalidate_bdev(sb->s_bdev); in __ext4_fill_super()
5679 sb->s_fs_info = NULL; in __ext4_fill_super()
5683 static int ext4_fill_super(struct super_block *sb, struct fs_context *fc) in ext4_fill_super() argument
5690 sbi = ext4_alloc_sbi(sb); in ext4_fill_super()
5697 strreplace(sb->s_id, '/', '!'); in ext4_fill_super()
5703 ret = __ext4_fill_super(fc, sb); in ext4_fill_super()
5708 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) in ext4_fill_super()
5710 else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) in ext4_fill_super()
5718 ext4_msg(sb, KERN_INFO, "mounted filesystem %pU %s with%s. " in ext4_fill_super()
5719 "Quota mode: %s.", &sb->s_uuid, in ext4_fill_super()
5720 sb_rdonly(sb) ? "ro" : "r/w", descr, in ext4_fill_super()
5721 ext4_quota_mode(sb)); in ext4_fill_super()
5724 ext4_update_overhead(sb, false); in ext4_fill_super()
5743 static void ext4_init_journal_params(struct super_block *sb, journal_t *journal) in ext4_init_journal_params() argument
5745 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_init_journal_params()
5750 ext4_fc_init(sb, journal); in ext4_init_journal_params()
5753 if (test_opt(sb, BARRIER)) in ext4_init_journal_params()
5757 if (test_opt(sb, DATA_ERR_ABORT)) in ext4_init_journal_params()
5769 static struct inode *ext4_get_journal_inode(struct super_block *sb, in ext4_get_journal_inode() argument
5779 journal_inode = ext4_iget(sb, journal_inum, EXT4_IGET_SPECIAL); in ext4_get_journal_inode()
5781 ext4_msg(sb, KERN_ERR, "no journal found"); in ext4_get_journal_inode()
5787 ext4_msg(sb, KERN_ERR, "journal inode is deleted"); in ext4_get_journal_inode()
5791 ext4_msg(sb, KERN_ERR, "invalid journal inode"); in ext4_get_journal_inode()
5823 static journal_t *ext4_open_inode_journal(struct super_block *sb, in ext4_open_inode_journal() argument
5829 journal_inode = ext4_get_journal_inode(sb, journal_inum); in ext4_open_inode_journal()
5835 ext4_msg(sb, KERN_ERR, "Could not load journal inode"); in ext4_open_inode_journal()
5839 journal->j_private = sb; in ext4_open_inode_journal()
5841 ext4_init_journal_params(sb, journal); in ext4_open_inode_journal()
5845 static struct block_device *ext4_get_journal_blkdev(struct super_block *sb, in ext4_get_journal_blkdev() argument
5858 up_write(&sb->s_umount); in ext4_get_journal_blkdev()
5859 bdev = blkdev_get_by_dev(j_dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb, in ext4_get_journal_blkdev()
5861 down_write(&sb->s_umount); in ext4_get_journal_blkdev()
5863 ext4_msg(sb, KERN_ERR, in ext4_get_journal_blkdev()
5869 blocksize = sb->s_blocksize; in ext4_get_journal_blkdev()
5872 ext4_msg(sb, KERN_ERR, in ext4_get_journal_blkdev()
5883 ext4_msg(sb, KERN_ERR, "couldn't read superblock of " in ext4_get_journal_blkdev()
5893 ext4_msg(sb, KERN_ERR, "external journal has bad superblock"); in ext4_get_journal_blkdev()
5900 es->s_checksum != ext4_superblock_csum(sb, es)) { in ext4_get_journal_blkdev()
5901 ext4_msg(sb, KERN_ERR, "external journal has corrupt superblock"); in ext4_get_journal_blkdev()
5906 if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) { in ext4_get_journal_blkdev()
5907 ext4_msg(sb, KERN_ERR, "journal UUID does not match"); in ext4_get_journal_blkdev()
5920 blkdev_put(bdev, sb); in ext4_get_journal_blkdev()
5924 static journal_t *ext4_open_dev_journal(struct super_block *sb, in ext4_open_dev_journal() argument
5933 journal_bdev = ext4_get_journal_blkdev(sb, j_dev, &j_start, &j_len); in ext4_open_dev_journal()
5937 journal = jbd2_journal_init_dev(journal_bdev, sb->s_bdev, j_start, in ext4_open_dev_journal()
5938 j_len, sb->s_blocksize); in ext4_open_dev_journal()
5940 ext4_msg(sb, KERN_ERR, "failed to create device journal"); in ext4_open_dev_journal()
5945 ext4_msg(sb, KERN_ERR, "External journal has more than one " in ext4_open_dev_journal()
5951 journal->j_private = sb; in ext4_open_dev_journal()
5952 EXT4_SB(sb)->s_journal_bdev = journal_bdev; in ext4_open_dev_journal()
5953 ext4_init_journal_params(sb, journal); in ext4_open_dev_journal()
5959 blkdev_put(journal_bdev, sb); in ext4_open_dev_journal()
5963 static int ext4_load_journal(struct super_block *sb, in ext4_load_journal() argument
5974 if (WARN_ON_ONCE(!ext4_has_feature_journal(sb))) in ext4_load_journal()
5979 ext4_msg(sb, KERN_INFO, "external journal device major/minor " in ext4_load_journal()
5986 ext4_msg(sb, KERN_ERR, in ext4_load_journal()
5992 journal = ext4_open_inode_journal(sb, journal_inum); in ext4_load_journal()
5996 journal = ext4_open_dev_journal(sb, journal_dev); in ext4_load_journal()
6002 really_read_only = bdev_read_only(sb->s_bdev) | journal_dev_ro; in ext4_load_journal()
6004 if (journal_dev_ro && !sb_rdonly(sb)) { in ext4_load_journal()
6005 ext4_msg(sb, KERN_ERR, in ext4_load_journal()
6016 if (ext4_has_feature_journal_needs_recovery(sb)) { in ext4_load_journal()
6017 if (sb_rdonly(sb)) { in ext4_load_journal()
6018 ext4_msg(sb, KERN_INFO, "INFO: recovery " in ext4_load_journal()
6021 ext4_msg(sb, KERN_ERR, "write access " in ext4_load_journal()
6027 ext4_msg(sb, KERN_INFO, "write access will " in ext4_load_journal()
6033 ext4_msg(sb, KERN_INFO, "barriers disabled"); in ext4_load_journal()
6035 if (!ext4_has_feature_journal_needs_recovery(sb)) in ext4_load_journal()
6054 es->s_state |= cpu_to_le16(EXT4_SB(sb)->s_mount_state & in ext4_load_journal()
6061 err2 = ext4_commit_super(sb); in ext4_load_journal()
6067 ext4_msg(sb, KERN_ERR, "error loading journal"); in ext4_load_journal()
6071 EXT4_SB(sb)->s_journal = journal; in ext4_load_journal()
6072 err = ext4_clear_journal_err(sb, es); in ext4_load_journal()
6074 EXT4_SB(sb)->s_journal = NULL; in ext4_load_journal()
6082 ext4_commit_super(sb); in ext4_load_journal()
6087 ext4_commit_super(sb); in ext4_load_journal()
6098 static void ext4_update_super(struct super_block *sb) in ext4_update_super() argument
6100 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_update_super()
6115 if (!sb_rdonly(sb)) in ext4_update_super()
6119 ((part_stat_read(sb->s_bdev, sectors[STAT_WRITE]) - in ext4_update_super()
6169 ext4_superblock_csum_set(sb); in ext4_update_super()
6173 static int ext4_commit_super(struct super_block *sb) in ext4_commit_super() argument
6175 struct buffer_head *sbh = EXT4_SB(sb)->s_sbh; in ext4_commit_super()
6179 if (block_device_ejected(sb)) in ext4_commit_super()
6182 ext4_update_super(sb); in ext4_commit_super()
6200 ext4_msg(sb, KERN_ERR, "previous I/O error to " in ext4_commit_super()
6210 (test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh); in ext4_commit_super()
6213 ext4_msg(sb, KERN_ERR, "I/O error while writing " in ext4_commit_super()
6227 static int ext4_mark_recovery_complete(struct super_block *sb, in ext4_mark_recovery_complete() argument
6231 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_mark_recovery_complete()
6233 if (!ext4_has_feature_journal(sb)) { in ext4_mark_recovery_complete()
6235 ext4_error(sb, "Journal got removed while the fs was " in ext4_mark_recovery_complete()
6246 if (sb_rdonly(sb) && (ext4_has_feature_journal_needs_recovery(sb) || in ext4_mark_recovery_complete()
6247 ext4_has_feature_orphan_present(sb))) { in ext4_mark_recovery_complete()
6248 if (!ext4_orphan_file_empty(sb)) { in ext4_mark_recovery_complete()
6249 ext4_error(sb, "Orphan file not empty on read-only fs."); in ext4_mark_recovery_complete()
6253 ext4_clear_feature_journal_needs_recovery(sb); in ext4_mark_recovery_complete()
6254 ext4_clear_feature_orphan_present(sb); in ext4_mark_recovery_complete()
6255 ext4_commit_super(sb); in ext4_mark_recovery_complete()
6267 static int ext4_clear_journal_err(struct super_block *sb, in ext4_clear_journal_err() argument
6274 if (!ext4_has_feature_journal(sb)) { in ext4_clear_journal_err()
6275 ext4_error(sb, "Journal got removed while the fs was mounted!"); in ext4_clear_journal_err()
6279 journal = EXT4_SB(sb)->s_journal; in ext4_clear_journal_err()
6290 errstr = ext4_decode_error(sb, j_errno, nbuf); in ext4_clear_journal_err()
6291 ext4_warning(sb, "Filesystem error recorded " in ext4_clear_journal_err()
6294 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in ext4_clear_journal_err()
6296 j_errno = ext4_commit_super(sb); in ext4_clear_journal_err()
6299 ext4_warning(sb, "Marked fs in need of filesystem check."); in ext4_clear_journal_err()
6311 int ext4_force_commit(struct super_block *sb) in ext4_force_commit() argument
6313 return ext4_journal_force_commit(EXT4_SB(sb)->s_journal); in ext4_force_commit()
6316 static int ext4_sync_fs(struct super_block *sb, int wait) in ext4_sync_fs() argument
6321 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_sync_fs()
6323 if (unlikely(ext4_forced_shutdown(sb))) in ext4_sync_fs()
6326 trace_ext4_sync_fs(sb, wait); in ext4_sync_fs()
6332 dquot_writeback_dquots(sb, -1); in ext4_sync_fs()
6349 } else if (wait && test_opt(sb, BARRIER)) in ext4_sync_fs()
6353 err = blkdev_issue_flush(sb->s_bdev); in ext4_sync_fs()
6369 static int ext4_freeze(struct super_block *sb) in ext4_freeze() argument
6372 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_freeze()
6387 ext4_clear_feature_journal_needs_recovery(sb); in ext4_freeze()
6388 if (ext4_orphan_file_empty(sb)) in ext4_freeze()
6389 ext4_clear_feature_orphan_present(sb); in ext4_freeze()
6392 error = ext4_commit_super(sb); in ext4_freeze()
6404 static int ext4_unfreeze(struct super_block *sb) in ext4_unfreeze() argument
6406 if (ext4_forced_shutdown(sb)) in ext4_unfreeze()
6409 if (EXT4_SB(sb)->s_journal) { in ext4_unfreeze()
6411 ext4_set_feature_journal_needs_recovery(sb); in ext4_unfreeze()
6412 if (ext4_has_feature_orphan_file(sb)) in ext4_unfreeze()
6413 ext4_set_feature_orphan_present(sb); in ext4_unfreeze()
6416 ext4_commit_super(sb); in ext4_unfreeze()
6436 static int __ext4_remount(struct fs_context *fc, struct super_block *sb) in __ext4_remount() argument
6440 struct ext4_sb_info *sbi = EXT4_SB(sb); in __ext4_remount()
6453 old_sb_flags = sb->s_flags; in __ext4_remount()
6465 char *qf_name = get_qf_name(sb, sbi, i); in __ext4_remount()
6485 ext4_apply_options(fc, sb); in __ext4_remount()
6488 test_opt(sb, JOURNAL_CHECKSUM)) { in __ext4_remount()
6489 ext4_msg(sb, KERN_ERR, "changing journal_checksum " in __ext4_remount()
6494 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) { in __ext4_remount()
6495 if (test_opt2(sb, EXPLICIT_DELALLOC)) { in __ext4_remount()
6496 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_remount()
6501 if (test_opt(sb, DIOREAD_NOLOCK)) { in __ext4_remount()
6502 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_remount()
6507 } else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) { in __ext4_remount()
6508 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in __ext4_remount()
6509 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_remount()
6517 ext4_msg(sb, KERN_ERR, "can't enable nombcache during remount"); in __ext4_remount()
6522 if (test_opt2(sb, ABORT)) in __ext4_remount()
6523 ext4_abort(sb, ESHUTDOWN, "Abort forced by user"); in __ext4_remount()
6525 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | in __ext4_remount()
6526 (test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0); in __ext4_remount()
6531 ext4_init_journal_params(sb, sbi->s_journal); in __ext4_remount()
6538 if ((bool)(fc->sb_flags & SB_RDONLY) != sb_rdonly(sb)) { in __ext4_remount()
6539 if (ext4_forced_shutdown(sb)) { in __ext4_remount()
6545 err = sync_filesystem(sb); in __ext4_remount()
6548 err = dquot_suspend(sb, -1); in __ext4_remount()
6556 sb->s_flags |= SB_RDONLY; in __ext4_remount()
6572 ext4_mark_recovery_complete(sb, es); in __ext4_remount()
6576 if (ext4_has_feature_readonly(sb) || in __ext4_remount()
6577 !ext4_feature_set_ok(sb, 0)) { in __ext4_remount()
6587 ext4_get_group_desc(sb, g, NULL); in __ext4_remount()
6589 if (!ext4_group_desc_csum_verify(sb, g, gdp)) { in __ext4_remount()
6590 ext4_msg(sb, KERN_ERR, in __ext4_remount()
6592 g, le16_to_cpu(ext4_group_desc_csum(sb, g, gdp)), in __ext4_remount()
6604 if (es->s_last_orphan || !ext4_orphan_file_empty(sb)) { in __ext4_remount()
6605 ext4_msg(sb, KERN_WARNING, "Couldn't " in __ext4_remount()
6620 err = ext4_clear_journal_err(sb, es); in __ext4_remount()
6627 err = ext4_setup_super(sb, es, 0); in __ext4_remount()
6631 sb->s_flags &= ~SB_RDONLY; in __ext4_remount()
6632 if (ext4_has_feature_mmp(sb)) { in __ext4_remount()
6633 err = ext4_multi_mount_protect(sb, in __ext4_remount()
6649 if (test_opt(sb, BLOCK_VALIDITY) && !sbi->s_system_blks) { in __ext4_remount()
6650 err = ext4_setup_system_zone(sb); in __ext4_remount()
6656 err = ext4_commit_super(sb); in __ext4_remount()
6663 if (sb_any_quota_suspended(sb)) in __ext4_remount()
6664 dquot_resume(sb, -1); in __ext4_remount()
6665 else if (ext4_has_feature_quota(sb)) { in __ext4_remount()
6666 err = ext4_enable_quotas(sb); in __ext4_remount()
6675 if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) in __ext4_remount()
6676 ext4_release_system_zone(sb); in __ext4_remount()
6682 if (sb_rdonly(sb) || !test_opt(sb, INIT_INODE_TABLE)) in __ext4_remount()
6683 ext4_unregister_li_request(sb); in __ext4_remount()
6686 first_not_zeroed = ext4_has_uninit_itable(sb); in __ext4_remount()
6687 ext4_register_li_request(sb, first_not_zeroed); in __ext4_remount()
6690 if (!ext4_has_feature_mmp(sb) || sb_rdonly(sb)) in __ext4_remount()
6700 if (sb_rdonly(sb) && !(old_sb_flags & SB_RDONLY) && in __ext4_remount()
6701 sb_any_quota_suspended(sb)) in __ext4_remount()
6702 dquot_resume(sb, -1); in __ext4_remount()
6703 sb->s_flags = old_sb_flags; in __ext4_remount()
6711 if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) in __ext4_remount()
6712 ext4_release_system_zone(sb); in __ext4_remount()
6716 to_free[i] = get_qf_name(sb, sbi, i); in __ext4_remount()
6723 if (!ext4_has_feature_mmp(sb) || sb_rdonly(sb)) in __ext4_remount()
6730 struct super_block *sb = fc->root->d_sb; in ext4_reconfigure() local
6733 fc->s_fs_info = EXT4_SB(sb); in ext4_reconfigure()
6735 ret = ext4_check_opt_consistency(fc, sb); in ext4_reconfigure()
6739 ret = __ext4_remount(fc, sb); in ext4_reconfigure()
6743 ext4_msg(sb, KERN_INFO, "re-mounted %pU %s. Quota mode: %s.", in ext4_reconfigure()
6744 &sb->s_uuid, sb_rdonly(sb) ? "ro" : "r/w", in ext4_reconfigure()
6745 ext4_quota_mode(sb)); in ext4_reconfigure()
6751 static int ext4_statfs_project(struct super_block *sb, in ext4_statfs_project() argument
6760 dquot = dqget(sb, qid); in ext4_statfs_project()
6767 limit >>= sb->s_blocksize_bits; in ext4_statfs_project()
6771 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits; in ext4_statfs_project()
6795 struct super_block *sb = dentry->d_sb; in ext4_statfs() local
6796 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_statfs()
6802 if (!test_opt(sb, MINIX_DF)) in ext4_statfs()
6806 buf->f_bsize = sb->s_blocksize; in ext4_statfs()
6823 sb_has_quota_limits_enabled(sb, PRJQUOTA)) in ext4_statfs()
6824 ext4_statfs_project(sb, EXT4_I(dentry->d_inode)->i_projid, buf); in ext4_statfs()
6896 struct super_block *sb = dquot->dq_sb; in ext4_mark_dquot_dirty() local
6898 if (ext4_is_quota_journalled(sb)) { in ext4_mark_dquot_dirty()
6906 static int ext4_write_info(struct super_block *sb, int type) in ext4_write_info() argument
6912 handle = ext4_journal_start_sb(sb, EXT4_HT_QUOTA, 2); in ext4_write_info()
6915 ret = dquot_commit_info(sb, type); in ext4_write_info()
6939 static int ext4_quota_on(struct super_block *sb, int type, int format_id, in ext4_quota_on() argument
6944 if (!test_opt(sb, QUOTA)) in ext4_quota_on()
6948 if (path->dentry->d_sb != sb) in ext4_quota_on()
6956 if (EXT4_SB(sb)->s_qf_names[type]) { in ext4_quota_on()
6958 if (path->dentry->d_parent != sb->s_root) in ext4_quota_on()
6959 ext4_msg(sb, KERN_WARNING, in ext4_quota_on()
6962 sb_dqopt(sb)->flags |= DQUOT_NOLIST_DIRTY; in ext4_quota_on()
6968 sb_dqopt(sb)->flags &= ~DQUOT_NOLIST_DIRTY; in ext4_quota_on()
6972 err = dquot_quota_on(sb, type, format_id, path); in ext4_quota_on()
6994 dquot_quota_off(sb, type); in ext4_quota_on()
7016 static int ext4_quota_enable(struct super_block *sb, int type, int format_id, in ext4_quota_enable() argument
7022 le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum), in ext4_quota_enable()
7023 le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum), in ext4_quota_enable()
7024 le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum) in ext4_quota_enable()
7027 BUG_ON(!ext4_has_feature_quota(sb)); in ext4_quota_enable()
7033 ext4_error(sb, "Bad quota inum: %lu, type: %d", in ext4_quota_enable()
7038 qf_inode = ext4_iget(sb, qf_inums[type], EXT4_IGET_SPECIAL); in ext4_quota_enable()
7040 ext4_error(sb, "Bad quota inode: %lu, type: %d", in ext4_quota_enable()
7057 int ext4_enable_quotas(struct super_block *sb) in ext4_enable_quotas() argument
7061 le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum), in ext4_enable_quotas()
7062 le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum), in ext4_enable_quotas()
7063 le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum) in ext4_enable_quotas()
7066 test_opt(sb, USRQUOTA), in ext4_enable_quotas()
7067 test_opt(sb, GRPQUOTA), in ext4_enable_quotas()
7068 test_opt(sb, PRJQUOTA), in ext4_enable_quotas()
7071 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; in ext4_enable_quotas()
7074 err = ext4_quota_enable(sb, type, QFMT_VFS_V1, in ext4_enable_quotas()
7078 ext4_warning(sb, in ext4_enable_quotas()
7084 ext4_quotas_off(sb, type); in ext4_enable_quotas()
7092 static int ext4_quota_off(struct super_block *sb, int type) in ext4_quota_off() argument
7094 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_off()
7100 if (test_opt(sb, DELALLOC)) in ext4_quota_off()
7101 sync_filesystem(sb); in ext4_quota_off()
7106 err = dquot_quota_off(sb, type); in ext4_quota_off()
7107 if (err || ext4_has_feature_quota(sb)) in ext4_quota_off()
7114 if (sb_rdonly(sb)) in ext4_quota_off()
7140 return dquot_quota_off(sb, type); in ext4_quota_off()
7147 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data, in ext4_quota_read() argument
7150 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_read()
7151 ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); in ext4_quota_read()
7152 int offset = off & (sb->s_blocksize - 1); in ext4_quota_read()
7164 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); in ext4_quota_read()
7183 static ssize_t ext4_quota_write(struct super_block *sb, int type, in ext4_quota_write() argument
7186 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_write()
7187 ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); in ext4_quota_write()
7188 int err = 0, err2 = 0, offset = off & (sb->s_blocksize - 1); in ext4_quota_write()
7194 ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)" in ext4_quota_write()
7203 if (sb->s_blocksize - offset < len) { in ext4_quota_write()
7204 ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)" in ext4_quota_write()
7221 err = ext4_journal_get_write_access(handle, sb, bh, EXT4_JTR_NONE); in ext4_quota_write()
7258 static inline int ext2_feature_set_ok(struct super_block *sb) in ext2_feature_set_ok() argument
7260 if (ext4_has_unknown_ext2_incompat_features(sb)) in ext2_feature_set_ok()
7262 if (sb_rdonly(sb)) in ext2_feature_set_ok()
7264 if (ext4_has_unknown_ext2_ro_compat_features(sb)) in ext2_feature_set_ok()
7271 static inline int ext2_feature_set_ok(struct super_block *sb) { return 0; } in ext2_feature_set_ok() argument
7287 static inline int ext3_feature_set_ok(struct super_block *sb) in ext3_feature_set_ok() argument
7289 if (ext4_has_unknown_ext3_incompat_features(sb)) in ext3_feature_set_ok()
7291 if (!ext4_has_feature_journal(sb)) in ext3_feature_set_ok()
7293 if (sb_rdonly(sb)) in ext3_feature_set_ok()
7295 if (ext4_has_unknown_ext3_ro_compat_features(sb)) in ext3_feature_set_ok()
7300 static void ext4_kill_sb(struct super_block *sb) in ext4_kill_sb() argument
7302 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_kill_sb()
7305 kill_block_super(sb); in ext4_kill_sb()
7308 blkdev_put(journal_bdev, sb); in ext4_kill_sb()