Lines Matching full: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()
450 * @sb: The superblock
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()
763 * through the journal to avoid collisions of other journalled sb in update_super_work()
805 * Write through journal failed. Write sb directly to get error info in update_super_work()
812 #define ext4_error_ratelimit(sb) \ argument
813 ___ratelimit(&(EXT4_SB(sb)->s_err_ratelimit_state), \
816 void __ext4_error(struct super_block *sb, const char *function, in __ext4_error() argument
823 if (unlikely(ext4_forced_shutdown(sb))) in __ext4_error()
826 trace_ext4_error(sb, function, line); in __ext4_error()
827 if (ext4_error_ratelimit(sb)) { in __ext4_error()
833 sb->s_id, function, line, current->comm, &vaf); in __ext4_error()
836 fsnotify_sb_error(sb, NULL, error ? error : EFSCORRUPTED); in __ext4_error()
838 ext4_handle_error(sb, force_ro, error, 0, block, function, line); in __ext4_error()
914 const char *ext4_decode_error(struct super_block *sb, int errno, in ext4_decode_error() argument
933 if (!sb || (EXT4_SB(sb)->s_journal && in ext4_decode_error()
934 EXT4_SB(sb)->s_journal->j_flags & JBD2_ABORT)) in ext4_decode_error()
957 void __ext4_std_error(struct super_block *sb, const char *function, in __ext4_std_error() argument
963 if (unlikely(ext4_forced_shutdown(sb))) in __ext4_std_error()
969 if (errno == -EROFS && journal_current_handle() == NULL && sb_rdonly(sb)) in __ext4_std_error()
972 if (ext4_error_ratelimit(sb)) { in __ext4_std_error()
973 errstr = ext4_decode_error(sb, errno, nbuf); in __ext4_std_error()
975 sb->s_id, function, line, errstr); in __ext4_std_error()
977 fsnotify_sb_error(sb, NULL, errno ? errno : EFSCORRUPTED); in __ext4_std_error()
979 ext4_handle_error(sb, false, -errno, 0, 0, function, line); in __ext4_std_error()
982 void __ext4_msg(struct super_block *sb, in __ext4_msg() argument
988 if (sb) { in __ext4_msg()
989 atomic_inc(&EXT4_SB(sb)->s_msg_count); in __ext4_msg()
990 if (!___ratelimit(&(EXT4_SB(sb)->s_msg_ratelimit_state), in __ext4_msg()
998 if (sb) in __ext4_msg()
999 printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf); in __ext4_msg()
1005 static int ext4_warning_ratelimit(struct super_block *sb) in ext4_warning_ratelimit() argument
1007 atomic_inc(&EXT4_SB(sb)->s_warning_count); in ext4_warning_ratelimit()
1008 return ___ratelimit(&(EXT4_SB(sb)->s_warning_ratelimit_state), in ext4_warning_ratelimit()
1012 void __ext4_warning(struct super_block *sb, const char *function, in __ext4_warning() argument
1018 if (!ext4_warning_ratelimit(sb)) in __ext4_warning()
1025 sb->s_id, function, line, &vaf); in __ext4_warning()
1048 struct super_block *sb, ext4_group_t grp, in __ext4_grp_locked_error() argument
1057 if (unlikely(ext4_forced_shutdown(sb))) in __ext4_grp_locked_error()
1060 trace_ext4_error(sb, function, line); in __ext4_grp_locked_error()
1061 if (ext4_error_ratelimit(sb)) { in __ext4_grp_locked_error()
1066 sb->s_id, function, line, grp); in __ext4_grp_locked_error()
1076 if (test_opt(sb, ERRORS_CONT)) { in __ext4_grp_locked_error()
1077 if (test_opt(sb, WARN_ON_ERROR)) in __ext4_grp_locked_error()
1079 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in __ext4_grp_locked_error()
1080 if (!bdev_read_only(sb->s_bdev)) { in __ext4_grp_locked_error()
1081 save_error_info(sb, EFSCORRUPTED, ino, block, function, in __ext4_grp_locked_error()
1083 schedule_work(&EXT4_SB(sb)->s_sb_upd_work); in __ext4_grp_locked_error()
1087 ext4_unlock_group(sb, grp); in __ext4_grp_locked_error()
1088 ext4_handle_error(sb, false, EFSCORRUPTED, ino, block, function, line); in __ext4_grp_locked_error()
1100 ext4_lock_group(sb, grp); in __ext4_grp_locked_error()
1104 void ext4_mark_group_bitmap_corrupted(struct super_block *sb, in ext4_mark_group_bitmap_corrupted() argument
1108 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_mark_group_bitmap_corrupted()
1109 struct ext4_group_info *grp = ext4_get_group_info(sb, group); in ext4_mark_group_bitmap_corrupted()
1110 struct ext4_group_desc *gdp = ext4_get_group_desc(sb, group, NULL); in ext4_mark_group_bitmap_corrupted()
1129 count = ext4_free_inodes_count(sb, gdp); in ext4_mark_group_bitmap_corrupted()
1136 void ext4_update_dynamic_rev(struct super_block *sb) in ext4_update_dynamic_rev() argument
1138 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in ext4_update_dynamic_rev()
1143 ext4_warning(sb, in ext4_update_dynamic_rev()
1166 static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi) in dump_orphan_list() argument
1170 ext4_msg(sb, KERN_ERR, "sb orphan head is %d", in dump_orphan_list()
1185 static int ext4_quota_off(struct super_block *sb, int type);
1187 static inline void ext4_quotas_off(struct super_block *sb, int type) in ext4_quotas_off() argument
1193 ext4_quota_off(sb, type); in ext4_quotas_off()
1200 static inline char *get_qf_name(struct super_block *sb, in get_qf_name() argument
1205 lockdep_is_held(&sb->s_umount)); in get_qf_name()
1208 static inline void ext4_quotas_off(struct super_block *sb, int type) in ext4_quotas_off() argument
1284 static void ext4_put_super(struct super_block *sb) in ext4_put_super() argument
1286 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_put_super()
1301 ext4_unregister_sysfs(sb); in ext4_put_super()
1304 ext4_msg(sb, KERN_INFO, "unmounting filesystem %pU.", in ext4_put_super()
1305 &sb->s_uuid); in ext4_put_super()
1307 ext4_unregister_li_request(sb); in ext4_put_super()
1308 ext4_quotas_off(sb, EXT4_MAXQUOTAS); in ext4_put_super()
1312 ext4_release_orphan_info(sb); in ext4_put_super()
1319 ext4_abort(sb, -err, "Couldn't clean up the journal"); in ext4_put_super()
1325 ext4_release_system_zone(sb); in ext4_put_super()
1326 ext4_mb_release(sb); in ext4_put_super()
1327 ext4_ext_release(sb); in ext4_put_super()
1329 if (!sb_rdonly(sb) && !aborted) { in ext4_put_super()
1330 ext4_clear_feature_journal_needs_recovery(sb); in ext4_put_super()
1331 ext4_clear_feature_orphan_present(sb); in ext4_put_super()
1334 if (!sb_rdonly(sb)) in ext4_put_super()
1335 ext4_commit_super(sb); in ext4_put_super()
1342 kfree(get_qf_name(sb, sbi, i)); in ext4_put_super()
1350 dump_orphan_list(sb, sbi); in ext4_put_super()
1353 sync_blockdev(sb->s_bdev); in ext4_put_super()
1354 invalidate_bdev(sb->s_bdev); in ext4_put_super()
1374 sb->s_fs_info = NULL; in ext4_put_super()
1387 utf8_unload(sb->s_encoding); in ext4_put_super()
1397 static struct inode *ext4_alloc_inode(struct super_block *sb) in ext4_alloc_inode() argument
1401 ei = alloc_inode_sb(sb, ext4_inode_cachep, GFP_NOFS); in ext4_alloc_inode()
1476 static void ext4_shutdown(struct super_block *sb) in ext4_shutdown() argument
1478 ext4_force_shutdown(sb, EXT4_GOING_FLAGS_NOLOGFLUSH); in ext4_shutdown()
1534 static struct inode *ext4_nfs_get_inode(struct super_block *sb, in ext4_nfs_get_inode() argument
1543 inode = ext4_iget(sb, ino, EXT4_IGET_HANDLE); in ext4_nfs_get_inode()
1554 static struct dentry *ext4_fh_to_dentry(struct super_block *sb, struct fid *fid, in ext4_fh_to_dentry() argument
1557 return generic_fh_to_dentry(sb, fid, fh_len, fh_type, in ext4_fh_to_dentry()
1561 static struct dentry *ext4_fh_to_parent(struct super_block *sb, struct fid *fid, in ext4_fh_to_parent() argument
1564 return generic_fh_to_parent(sb, fid, fh_len, fh_type, in ext4_fh_to_parent()
1586 static int ext4_write_info(struct super_block *sb, int type);
1587 static int ext4_quota_on(struct super_block *sb, int type, int format_id,
1589 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
1591 static ssize_t ext4_quota_write(struct super_block *sb, int type,
1593 static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
1739 fsparam_u32 ("sb", Opt_sb),
2494 static int parse_apply_sb_mount_options(struct super_block *sb, in parse_apply_sb_mount_options() argument
2497 struct ext4_sb_info *sbi = EXT4_SB(sb); in parse_apply_sb_mount_options()
2527 ret = ext4_check_opt_consistency(fc, sb); in parse_apply_sb_mount_options()
2530 ext4_msg(sb, KERN_WARNING, in parse_apply_sb_mount_options()
2542 ext4_apply_options(fc, sb); in parse_apply_sb_mount_options()
2555 struct super_block *sb) in ext4_apply_quota_options() argument
2558 bool quota_feature = ext4_has_feature_quota(sb); in ext4_apply_quota_options()
2560 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_apply_quota_options()
2574 set_opt(sb, QUOTA); in ext4_apply_quota_options()
2577 lockdep_is_held(&sb->s_umount)); in ext4_apply_quota_options()
2592 struct super_block *sb) in ext4_check_quota_consistency() argument
2596 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_quota_consistency()
2597 bool quota_feature = ext4_has_feature_quota(sb); in ext4_check_quota_consistency()
2598 bool quota_loaded = sb_any_quota_loaded(sb); in ext4_check_quota_consistency()
2608 !ext4_has_feature_project(sb)) { in ext4_check_quota_consistency()
2632 strcmp(get_qf_name(sb, sbi, i), in ext4_check_quota_consistency()
2656 usr_qf_name = (get_qf_name(sb, sbi, USRQUOTA) || in ext4_check_quota_consistency()
2658 grp_qf_name = (get_qf_name(sb, sbi, GRPQUOTA) || in ext4_check_quota_consistency()
2662 test_opt(sb, USRQUOTA)); in ext4_check_quota_consistency()
2665 test_opt(sb, GRPQUOTA)); in ext4_check_quota_consistency()
2710 struct super_block *sb) in ext4_check_test_dummy_encryption() argument
2713 const struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_test_dummy_encryption()
2718 if (!ext4_has_feature_encrypt(sb)) { in ext4_check_test_dummy_encryption()
2750 struct super_block *sb) in ext4_apply_test_dummy_encryption() argument
2754 fscrypt_is_dummy_policy_set(&EXT4_SB(sb)->s_dummy_enc_policy)) in ext4_apply_test_dummy_encryption()
2756 EXT4_SB(sb)->s_dummy_enc_policy = ctx->dummy_enc_policy; in ext4_apply_test_dummy_encryption()
2758 ext4_msg(sb, KERN_WARNING, "Test dummy encryption mode enabled"); in ext4_apply_test_dummy_encryption()
2762 struct super_block *sb) in ext4_check_opt_consistency() argument
2769 if ((ctx->opt_flags & MOPT_NO_EXT2) && IS_EXT2_SB(sb)) { in ext4_check_opt_consistency()
2774 if ((ctx->opt_flags & MOPT_NO_EXT3) && IS_EXT3_SB(sb)) { in ext4_check_opt_consistency()
2797 err = ext4_check_test_dummy_encryption(fc, sb); in ext4_check_opt_consistency()
2808 test_opt(sb, DATA_FLAGS)) { in ext4_check_opt_consistency()
2817 (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)) { in ext4_check_opt_consistency()
2842 return ext4_check_quota_consistency(fc, sb); in ext4_check_opt_consistency()
2845 static void ext4_apply_options(struct fs_context *fc, struct super_block *sb) in ext4_apply_options() argument
2854 sb->s_flags &= ~ctx->mask_s_flags; in ext4_apply_options()
2855 sb->s_flags |= ctx->vals_s_flags; in ext4_apply_options()
2873 ext4_apply_quota_options(fc, sb); in ext4_apply_options()
2874 ext4_apply_test_dummy_encryption(ctx, sb); in ext4_apply_options()
2906 struct super_block *sb) in ext4_show_quota_options() argument
2909 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_show_quota_options()
2953 * - if the per-sb default is different from the global default
2955 static int _ext4_show_options(struct seq_file *seq, struct super_block *sb, in _ext4_show_options() argument
2958 struct ext4_sb_info *sbi = EXT4_SB(sb); in _ext4_show_options()
2968 SEQ_OPTS_PRINT("sb=%llu", sbi->s_sb_block); in _ext4_show_options()
3006 if (test_opt(sb, ERRORS_RO) && def_errors != EXT4_ERRORS_RO) in _ext4_show_options()
3008 if (test_opt(sb, ERRORS_CONT) && def_errors != EXT4_ERRORS_CONTINUE) in _ext4_show_options()
3010 if (test_opt(sb, ERRORS_PANIC) && def_errors != EXT4_ERRORS_PANIC) in _ext4_show_options()
3022 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) in _ext4_show_options()
3024 else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) in _ext4_show_options()
3026 else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA) in _ext4_show_options()
3034 if (test_opt(sb, INIT_INODE_TABLE) && (nodefs || in _ext4_show_options()
3039 if (test_opt(sb, DATA_ERR_ABORT)) in _ext4_show_options()
3042 fscrypt_show_test_dummy_encryption(seq, sep, sb); in _ext4_show_options()
3044 if (sb->s_flags & SB_INLINECRYPT) in _ext4_show_options()
3047 if (test_opt(sb, DAX_ALWAYS)) { in _ext4_show_options()
3048 if (IS_EXT2_SB(sb)) in _ext4_show_options()
3052 } else if (test_opt2(sb, DAX_NEVER)) { in _ext4_show_options()
3054 } else if (test_opt2(sb, DAX_INODE)) { in _ext4_show_options()
3059 !test_opt2(sb, MB_OPTIMIZE_SCAN)) { in _ext4_show_options()
3062 test_opt2(sb, MB_OPTIMIZE_SCAN)) { in _ext4_show_options()
3066 ext4_show_quota_options(seq, sb); in _ext4_show_options()
3077 struct super_block *sb = seq->private; in ext4_seq_options_show() local
3080 seq_puts(seq, sb_rdonly(sb) ? "ro" : "rw"); in ext4_seq_options_show()
3081 rc = _ext4_show_options(seq, sb, 1); in ext4_seq_options_show()
3086 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es, in ext4_setup_super() argument
3089 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_setup_super()
3093 ext4_msg(sb, KERN_ERR, "revision level too high, " in ext4_setup_super()
3101 ext4_msg(sb, KERN_WARNING, "warning: mounting unchecked fs, " in ext4_setup_super()
3104 ext4_msg(sb, KERN_WARNING, in ext4_setup_super()
3110 ext4_msg(sb, KERN_WARNING, in ext4_setup_super()
3116 ext4_msg(sb, KERN_WARNING, in ext4_setup_super()
3126 ext4_set_feature_journal_needs_recovery(sb); in ext4_setup_super()
3127 if (ext4_has_feature_orphan_file(sb)) in ext4_setup_super()
3128 ext4_set_feature_orphan_present(sb); in ext4_setup_super()
3131 err = ext4_commit_super(sb); in ext4_setup_super()
3133 if (test_opt(sb, DEBUG)) in ext4_setup_super()
3136 sb->s_blocksize, in ext4_setup_super()
3138 EXT4_BLOCKS_PER_GROUP(sb), in ext4_setup_super()
3139 EXT4_INODES_PER_GROUP(sb), in ext4_setup_super()
3144 int ext4_alloc_flex_bg_array(struct super_block *sb, ext4_group_t ngroup) in ext4_alloc_flex_bg_array() argument
3146 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_alloc_flex_bg_array()
3160 ext4_msg(sb, KERN_ERR, in ext4_alloc_flex_bg_array()
3172 ext4_msg(sb, KERN_ERR, in ext4_alloc_flex_bg_array()
3191 static int ext4_fill_flex_info(struct super_block *sb) in ext4_fill_flex_info() argument
3193 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_fill_flex_info()
3205 err = ext4_alloc_flex_bg_array(sb, sbi->s_groups_count); in ext4_fill_flex_info()
3210 gdp = ext4_get_group_desc(sb, i, NULL); in ext4_fill_flex_info()
3214 atomic_add(ext4_free_inodes_count(sb, gdp), &fg->free_inodes); in ext4_fill_flex_info()
3215 atomic64_add(ext4_free_group_clusters(sb, gdp), in ext4_fill_flex_info()
3217 atomic_add(ext4_used_dirs_count(sb, gdp), &fg->used_dirs); in ext4_fill_flex_info()
3225 static __le16 ext4_group_desc_csum(struct super_block *sb, __u32 block_group, in ext4_group_desc_csum() argument
3231 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_group_desc_csum()
3253 if (!ext4_has_feature_gdt_csum(sb)) in ext4_group_desc_csum()
3261 if (ext4_has_feature_64bit(sb) && offset < sbi->s_desc_size) in ext4_group_desc_csum()
3269 int ext4_group_desc_csum_verify(struct super_block *sb, __u32 block_group, in ext4_group_desc_csum_verify() argument
3272 if (ext4_has_group_desc_csum(sb) && in ext4_group_desc_csum_verify()
3273 (gdp->bg_checksum != ext4_group_desc_csum(sb, block_group, gdp))) in ext4_group_desc_csum_verify()
3279 void ext4_group_desc_csum_set(struct super_block *sb, __u32 block_group, in ext4_group_desc_csum_set() argument
3282 if (!ext4_has_group_desc_csum(sb)) in ext4_group_desc_csum_set()
3284 gdp->bg_checksum = ext4_group_desc_csum(sb, block_group, gdp); in ext4_group_desc_csum_set()
3288 static int ext4_check_descriptors(struct super_block *sb, in ext4_check_descriptors() argument
3292 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_descriptors()
3295 ext4_fsblk_t last_bg_block = sb_block + ext4_bg_num_gdb(sb, 0); in ext4_check_descriptors()
3302 if (ext4_has_feature_flex_bg(sb)) in ext4_check_descriptors()
3308 struct ext4_group_desc *gdp = ext4_get_group_desc(sb, i, NULL); in ext4_check_descriptors()
3314 (EXT4_BLOCKS_PER_GROUP(sb) - 1); in ext4_check_descriptors()
3320 block_bitmap = ext4_block_bitmap(sb, gdp); in ext4_check_descriptors()
3322 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3325 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3330 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3333 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3337 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3342 inode_bitmap = ext4_inode_bitmap(sb, gdp); in ext4_check_descriptors()
3344 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3347 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3352 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3355 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3359 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3364 inode_table = ext4_inode_table(sb, gdp); in ext4_check_descriptors()
3366 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3369 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3374 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3377 if (!sb_rdonly(sb)) in ext4_check_descriptors()
3382 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3387 ext4_lock_group(sb, i); in ext4_check_descriptors()
3388 if (!ext4_group_desc_csum_verify(sb, i, gdp)) { in ext4_check_descriptors()
3389 ext4_msg(sb, KERN_ERR, "ext4_check_descriptors: " in ext4_check_descriptors()
3391 i, le16_to_cpu(ext4_group_desc_csum(sb, i, in ext4_check_descriptors()
3393 if (!sb_rdonly(sb)) { in ext4_check_descriptors()
3394 ext4_unlock_group(sb, i); in ext4_check_descriptors()
3398 ext4_unlock_group(sb, i); in ext4_check_descriptors()
3400 first_block += EXT4_BLOCKS_PER_GROUP(sb); in ext4_check_descriptors()
3531 static ext4_fsblk_t descriptor_loc(struct super_block *sb, in descriptor_loc() argument
3534 struct ext4_sb_info *sbi = EXT4_SB(sb); in descriptor_loc()
3540 if (!ext4_has_feature_meta_bg(sb) || nr < first_meta_bg) in descriptor_loc()
3543 if (ext4_bg_has_super(sb, bg)) in descriptor_loc()
3552 if (sb->s_blocksize == 1024 && nr == 0 && in descriptor_loc()
3556 return (has_super + ext4_group_first_block_no(sb, bg)); in descriptor_loc()
3602 int ext4_feature_set_ok(struct super_block *sb, int readonly) in ext4_feature_set_ok() argument
3604 if (ext4_has_unknown_ext4_incompat_features(sb)) { in ext4_feature_set_ok()
3605 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3608 (le32_to_cpu(EXT4_SB(sb)->s_es->s_feature_incompat) & in ext4_feature_set_ok()
3614 if (ext4_has_feature_casefold(sb)) { in ext4_feature_set_ok()
3615 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3625 if (ext4_has_feature_readonly(sb)) { in ext4_feature_set_ok()
3626 ext4_msg(sb, KERN_INFO, "filesystem is read-only"); in ext4_feature_set_ok()
3627 sb->s_flags |= SB_RDONLY; in ext4_feature_set_ok()
3632 if (ext4_has_unknown_ext4_ro_compat_features(sb)) { in ext4_feature_set_ok()
3633 ext4_msg(sb, KERN_ERR, "couldn't mount RDWR because of " in ext4_feature_set_ok()
3635 (le32_to_cpu(EXT4_SB(sb)->s_es->s_feature_ro_compat) & in ext4_feature_set_ok()
3639 if (ext4_has_feature_bigalloc(sb) && !ext4_has_feature_extents(sb)) { in ext4_feature_set_ok()
3640 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3647 if (!readonly && (ext4_has_feature_quota(sb) || in ext4_feature_set_ok()
3648 ext4_has_feature_project(sb))) { in ext4_feature_set_ok()
3649 ext4_msg(sb, KERN_ERR, in ext4_feature_set_ok()
3664 struct super_block *sb = sbi->s_sb; in print_daily_error_info() local
3669 ext4_msg(sb, KERN_NOTICE, "error count since last fsck: %u", in print_daily_error_info()
3673 sb->s_id, in print_daily_error_info()
3688 sb->s_id, in print_daily_error_info()
3708 struct super_block *sb = elr->lr_super; in ext4_run_li_request() local
3709 ext4_group_t ngroups = EXT4_SB(sb)->s_groups_count; in ext4_run_li_request()
3713 int nr = EXT4_SB(sb)->s_mb_prefetch; in ext4_run_li_request()
3717 elr->lr_next_group = ext4_mb_prefetch(sb, group, nr, &prefetch_ios); in ext4_run_li_request()
3718 ext4_mb_prefetch_fini(sb, elr->lr_next_group, nr); in ext4_run_li_request()
3719 trace_ext4_prefetch_bitmaps(sb, group, elr->lr_next_group, nr); in ext4_run_li_request()
3723 !sb_rdonly(sb) && test_opt(sb, INIT_INODE_TABLE)) { in ext4_run_li_request()
3733 gdp = ext4_get_group_desc(sb, group, NULL); in ext4_run_li_request()
3748 ret = ext4_init_inode_table(sb, group, in ext4_run_li_request()
3750 trace_ext4_lazy_itable_init(sb, group); in ext4_run_li_request()
3775 static void ext4_unregister_li_request(struct super_block *sb) in ext4_unregister_li_request() argument
3784 ext4_remove_li_request(EXT4_SB(sb)->s_li_request); in ext4_unregister_li_request()
3834 * We hold sb->s_umount, sb can not in ext4_lazyinit_thread()
3939 static ext4_group_t ext4_has_uninit_itable(struct super_block *sb) in ext4_has_uninit_itable() argument
3941 ext4_group_t group, ngroups = EXT4_SB(sb)->s_groups_count; in ext4_has_uninit_itable()
3944 if (!ext4_has_group_desc_csum(sb)) in ext4_has_uninit_itable()
3948 gdp = ext4_get_group_desc(sb, group, NULL); in ext4_has_uninit_itable()
3977 static struct ext4_li_request *ext4_li_request_new(struct super_block *sb, in ext4_li_request_new() argument
3986 elr->lr_super = sb; in ext4_li_request_new()
3988 if (test_opt(sb, NO_PREFETCH_BLOCK_BITMAPS)) { in ext4_li_request_new()
4004 int ext4_register_li_request(struct super_block *sb, in ext4_register_li_request() argument
4007 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_register_li_request()
4022 if (sb_rdonly(sb) || in ext4_register_li_request()
4023 (test_opt(sb, NO_PREFETCH_BLOCK_BITMAPS) && in ext4_register_li_request()
4024 (first_not_zeroed == ngroups || !test_opt(sb, INIT_INODE_TABLE)))) in ext4_register_li_request()
4027 elr = ext4_li_request_new(sb, first_not_zeroed); in ext4_register_li_request()
4079 static int set_journal_csum_feature_set(struct super_block *sb) in set_journal_csum_feature_set() argument
4083 struct ext4_sb_info *sbi = EXT4_SB(sb); in set_journal_csum_feature_set()
4085 if (ext4_has_metadata_csum(sb)) { in set_journal_csum_feature_set()
4099 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in set_journal_csum_feature_set()
4104 } else if (test_opt(sb, JOURNAL_CHECKSUM)) { in set_journal_csum_feature_set()
4133 static int count_overhead(struct super_block *sb, ext4_group_t grp, in count_overhead() argument
4136 struct ext4_sb_info *sbi = EXT4_SB(sb); in count_overhead()
4139 ext4_group_t i, ngroups = ext4_get_groups_count(sb); in count_overhead()
4141 int has_super = ext4_bg_has_super(sb, grp); in count_overhead()
4143 if (!ext4_has_feature_bigalloc(sb)) in count_overhead()
4144 return (has_super + ext4_bg_num_gdb(sb, grp) + in count_overhead()
4149 (grp * EXT4_BLOCKS_PER_GROUP(sb)); in count_overhead()
4150 last_block = first_block + EXT4_BLOCKS_PER_GROUP(sb) - 1; in count_overhead()
4152 gdp = ext4_get_group_desc(sb, i, NULL); in count_overhead()
4153 b = ext4_block_bitmap(sb, gdp); in count_overhead()
4158 b = ext4_inode_bitmap(sb, gdp); in count_overhead()
4163 b = ext4_inode_table(sb, gdp); in count_overhead()
4173 if (ext4_bg_has_super(sb, grp)) { in count_overhead()
4177 j = ext4_bg_num_gdb(sb, grp); in count_overhead()
4178 if (s + j > EXT4_BLOCKS_PER_GROUP(sb)) { in count_overhead()
4179 ext4_error(sb, "Invalid number of block group " in count_overhead()
4181 j = EXT4_BLOCKS_PER_GROUP(sb) - s; in count_overhead()
4189 return EXT4_CLUSTERS_PER_GROUP(sb) - in count_overhead()
4190 ext4_count_free(buf, EXT4_CLUSTERS_PER_GROUP(sb) / 8); in count_overhead()
4196 int ext4_calculate_overhead(struct super_block *sb) in ext4_calculate_overhead() argument
4198 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_calculate_overhead()
4202 ext4_group_t i, ngroups = ext4_get_groups_count(sb); in ext4_calculate_overhead()
4226 blks = count_overhead(sb, i, buf); in ext4_calculate_overhead()
4239 else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) { in ext4_calculate_overhead()
4241 j_inode = ext4_get_journal_inode(sb, j_inum); in ext4_calculate_overhead()
4243 j_blocks = j_inode->i_size >> sb->s_blocksize_bits; in ext4_calculate_overhead()
4247 ext4_msg(sb, KERN_ERR, "can't get journal size"); in ext4_calculate_overhead()
4256 static void ext4_set_resv_clusters(struct super_block *sb) in ext4_set_resv_clusters() argument
4259 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_set_resv_clusters()
4267 if (!ext4_has_feature_extents(sb)) in ext4_set_resv_clusters()
4286 static const char *ext4_quota_mode(struct super_block *sb) in ext4_quota_mode() argument
4289 if (!ext4_quota_capable(sb)) in ext4_quota_mode()
4292 if (EXT4_SB(sb)->s_journal && ext4_is_quota_journalled(sb)) in ext4_quota_mode()
4301 static void ext4_setup_csum_trigger(struct super_block *sb, in ext4_setup_csum_trigger() argument
4309 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_setup_csum_trigger()
4311 sbi->s_journal_triggers[type].sb = sb; in ext4_setup_csum_trigger()
4325 static struct ext4_sb_info *ext4_alloc_sbi(struct super_block *sb) in ext4_alloc_sbi() argument
4333 sbi->s_daxdev = fs_dax_get_by_bdev(sb->s_bdev, &sbi->s_dax_part_off, in ext4_alloc_sbi()
4342 sb->s_fs_info = sbi; in ext4_alloc_sbi()
4343 sbi->s_sb = sb; in ext4_alloc_sbi()
4351 static void ext4_set_def_opts(struct super_block *sb, in ext4_set_def_opts() argument
4358 set_opt(sb, INIT_INODE_TABLE); in ext4_set_def_opts()
4360 set_opt(sb, DEBUG); in ext4_set_def_opts()
4362 set_opt(sb, GRPID); in ext4_set_def_opts()
4364 set_opt(sb, NO_UID32); in ext4_set_def_opts()
4366 set_opt(sb, XATTR_USER); in ext4_set_def_opts()
4368 set_opt(sb, POSIX_ACL); in ext4_set_def_opts()
4370 if (ext4_has_feature_fast_commit(sb)) in ext4_set_def_opts()
4371 set_opt2(sb, JOURNAL_FAST_COMMIT); in ext4_set_def_opts()
4373 if (ext4_has_metadata_csum(sb)) in ext4_set_def_opts()
4374 set_opt(sb, JOURNAL_CHECKSUM); in ext4_set_def_opts()
4377 set_opt(sb, JOURNAL_DATA); in ext4_set_def_opts()
4379 set_opt(sb, ORDERED_DATA); in ext4_set_def_opts()
4381 set_opt(sb, WRITEBACK_DATA); in ext4_set_def_opts()
4384 set_opt(sb, ERRORS_PANIC); in ext4_set_def_opts()
4386 set_opt(sb, ERRORS_CONT); in ext4_set_def_opts()
4388 set_opt(sb, ERRORS_RO); in ext4_set_def_opts()
4390 set_opt(sb, BLOCK_VALIDITY); in ext4_set_def_opts()
4392 set_opt(sb, DISCARD); in ext4_set_def_opts()
4395 set_opt(sb, BARRIER); in ext4_set_def_opts()
4401 if (!IS_EXT3_SB(sb) && !IS_EXT2_SB(sb) && in ext4_set_def_opts()
4403 set_opt(sb, DELALLOC); in ext4_set_def_opts()
4405 if (sb->s_blocksize == PAGE_SIZE) in ext4_set_def_opts()
4406 set_opt(sb, DIOREAD_NOLOCK); in ext4_set_def_opts()
4409 static int ext4_handle_clustersize(struct super_block *sb) in ext4_handle_clustersize() argument
4411 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_handle_clustersize()
4417 if (ext4_has_feature_bigalloc(sb)) { in ext4_handle_clustersize()
4418 if (clustersize < sb->s_blocksize) { in ext4_handle_clustersize()
4419 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4421 "block size (%lu)", clustersize, sb->s_blocksize); in ext4_handle_clustersize()
4428 if (sbi->s_clusters_per_group > sb->s_blocksize * 8) { in ext4_handle_clustersize()
4429 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4435 (sbi->s_clusters_per_group * (clustersize / sb->s_blocksize))) { in ext4_handle_clustersize()
4436 ext4_msg(sb, KERN_ERR, "blocks per group (%lu) and " in ext4_handle_clustersize()
4443 if (clustersize != sb->s_blocksize) { in ext4_handle_clustersize()
4444 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4446 "block size (%lu)", clustersize, sb->s_blocksize); in ext4_handle_clustersize()
4449 if (sbi->s_blocks_per_group > sb->s_blocksize * 8) { in ext4_handle_clustersize()
4450 ext4_msg(sb, KERN_ERR, in ext4_handle_clustersize()
4458 sbi->s_cluster_ratio = clustersize / sb->s_blocksize; in ext4_handle_clustersize()
4462 set_opt2(sb, STD_GROUP_SIZE); in ext4_handle_clustersize()
4467 static void ext4_fast_commit_init(struct super_block *sb) in ext4_fast_commit_init() argument
4469 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_fast_commit_init()
4478 ext4_clear_mount_flag(sb, EXT4_MF_FC_INELIGIBLE); in ext4_fast_commit_init()
4491 static int ext4_inode_info_init(struct super_block *sb, in ext4_inode_info_init() argument
4494 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_inode_info_init()
4503 ext4_msg(sb, KERN_ERR, "invalid first ino: %u", in ext4_inode_info_init()
4509 (sbi->s_inode_size > sb->s_blocksize)) { in ext4_inode_info_init()
4510 ext4_msg(sb, KERN_ERR, in ext4_inode_info_init()
4513 ext4_msg(sb, KERN_ERR, "blocksize: %lu", sb->s_blocksize); in ext4_inode_info_init()
4524 sb->s_time_gran = 1; in ext4_inode_info_init()
4525 sb->s_time_max = EXT4_EXTRA_TIMESTAMP_MAX; in ext4_inode_info_init()
4527 sb->s_time_gran = NSEC_PER_SEC; in ext4_inode_info_init()
4528 sb->s_time_max = EXT4_NON_EXTRA_TIMESTAMP_MAX; in ext4_inode_info_init()
4530 sb->s_time_min = EXT4_TIMESTAMP_MIN; in ext4_inode_info_init()
4536 if (ext4_has_feature_extra_isize(sb)) { in ext4_inode_info_init()
4542 ext4_msg(sb, KERN_ERR, in ext4_inode_info_init()
4551 ext4_msg(sb, KERN_ERR, in ext4_inode_info_init()
4564 static int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es) in ext4_encoding_init() argument
4570 if (!ext4_has_feature_casefold(sb) || sb->s_encoding) in ext4_encoding_init()
4575 ext4_msg(sb, KERN_ERR, in ext4_encoding_init()
4582 ext4_msg(sb, KERN_ERR, in ext4_encoding_init()
4592 ext4_msg(sb, KERN_INFO,"Using encoding defined by superblock: " in ext4_encoding_init()
4599 sb->s_encoding = encoding; in ext4_encoding_init()
4600 sb->s_encoding_flags = encoding_flags; in ext4_encoding_init()
4605 static inline int ext4_encoding_init(struct super_block *sb, struct ext4_super_block *es) in ext4_encoding_init() argument
4611 static int ext4_init_metadata_csum(struct super_block *sb, struct ext4_super_block *es) in ext4_init_metadata_csum() argument
4613 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_init_metadata_csum()
4616 if (ext4_has_feature_metadata_csum(sb) && in ext4_init_metadata_csum()
4617 ext4_has_feature_gdt_csum(sb)) in ext4_init_metadata_csum()
4618 ext4_warning(sb, "metadata_csum and uninit_bg are " in ext4_init_metadata_csum()
4622 if (!ext4_verify_csum_type(sb, es)) { in ext4_init_metadata_csum()
4623 ext4_msg(sb, KERN_ERR, "VFS: Found ext4 filesystem with " in ext4_init_metadata_csum()
4627 ext4_setup_csum_trigger(sb, EXT4_JTR_ORPHAN_FILE, in ext4_init_metadata_csum()
4634 ext4_msg(sb, KERN_ERR, "Cannot load crc32c driver."); in ext4_init_metadata_csum()
4640 if (!ext4_superblock_csum_verify(sb, es)) { in ext4_init_metadata_csum()
4641 ext4_msg(sb, KERN_ERR, "VFS: Found ext4 filesystem with " in ext4_init_metadata_csum()
4647 if (ext4_has_feature_csum_seed(sb)) in ext4_init_metadata_csum()
4649 else if (ext4_has_metadata_csum(sb) || ext4_has_feature_ea_inode(sb)) in ext4_init_metadata_csum()
4655 static int ext4_check_feature_compatibility(struct super_block *sb, in ext4_check_feature_compatibility() argument
4659 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_feature_compatibility()
4662 (ext4_has_compat_features(sb) || in ext4_check_feature_compatibility()
4663 ext4_has_ro_compat_features(sb) || in ext4_check_feature_compatibility()
4664 ext4_has_incompat_features(sb))) in ext4_check_feature_compatibility()
4665 ext4_msg(sb, KERN_WARNING, in ext4_check_feature_compatibility()
4670 set_opt2(sb, HURD_COMPAT); in ext4_check_feature_compatibility()
4671 if (ext4_has_feature_64bit(sb)) { in ext4_check_feature_compatibility()
4672 ext4_msg(sb, KERN_ERR, in ext4_check_feature_compatibility()
4681 if (ext4_has_feature_ea_inode(sb)) { in ext4_check_feature_compatibility()
4682 ext4_msg(sb, KERN_ERR, in ext4_check_feature_compatibility()
4688 if (IS_EXT2_SB(sb)) { in ext4_check_feature_compatibility()
4689 if (ext2_feature_set_ok(sb)) in ext4_check_feature_compatibility()
4690 ext4_msg(sb, KERN_INFO, "mounting ext2 file system " in ext4_check_feature_compatibility()
4697 if (silent && ext4_feature_set_ok(sb, sb_rdonly(sb))) in ext4_check_feature_compatibility()
4699 ext4_msg(sb, KERN_ERR, "couldn't mount as ext2 due " in ext4_check_feature_compatibility()
4705 if (IS_EXT3_SB(sb)) { in ext4_check_feature_compatibility()
4706 if (ext3_feature_set_ok(sb)) in ext4_check_feature_compatibility()
4707 ext4_msg(sb, KERN_INFO, "mounting ext3 file system " in ext4_check_feature_compatibility()
4714 if (silent && ext4_feature_set_ok(sb, sb_rdonly(sb))) in ext4_check_feature_compatibility()
4716 ext4_msg(sb, KERN_ERR, "couldn't mount as ext3 due " in ext4_check_feature_compatibility()
4727 if (!ext4_feature_set_ok(sb, (sb_rdonly(sb)))) in ext4_check_feature_compatibility()
4731 if (sb->s_blocksize == PAGE_SIZE) in ext4_check_feature_compatibility()
4734 ext4_msg(sb, KERN_ERR, "unsupported blocksize for DAX\n"); in ext4_check_feature_compatibility()
4738 if (ext4_has_feature_inline_data(sb)) { in ext4_check_feature_compatibility()
4739 ext4_msg(sb, KERN_ERR, "Cannot use DAX on a filesystem" in ext4_check_feature_compatibility()
4744 ext4_msg(sb, KERN_ERR, in ext4_check_feature_compatibility()
4750 if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) { in ext4_check_feature_compatibility()
4751 ext4_msg(sb, KERN_ERR, "Unsupported encryption level %d", in ext4_check_feature_compatibility()
4759 static int ext4_check_geometry(struct super_block *sb, in ext4_check_geometry() argument
4762 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_check_geometry()
4766 if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (sb->s_blocksize / 4)) { in ext4_check_geometry()
4767 ext4_msg(sb, KERN_ERR, in ext4_check_geometry()
4776 err = generic_check_addressable(sb->s_blocksize_bits, in ext4_check_geometry()
4779 ext4_msg(sb, KERN_ERR, "filesystem" in ext4_check_geometry()
4785 blocks_count = sb_bdev_nr_blocks(sb); in ext4_check_geometry()
4787 ext4_msg(sb, KERN_WARNING, "bad geometry: block count %llu " in ext4_check_geometry()
4798 ext4_msg(sb, KERN_WARNING, "bad geometry: first data " in ext4_check_geometry()
4806 ext4_msg(sb, KERN_WARNING, "bad geometry: first data " in ext4_check_geometry()
4813 EXT4_BLOCKS_PER_GROUP(sb) - 1); in ext4_check_geometry()
4814 do_div(blocks_count, EXT4_BLOCKS_PER_GROUP(sb)); in ext4_check_geometry()
4815 if (blocks_count > ((uint64_t)1<<32) - EXT4_DESC_PER_BLOCK(sb)) { in ext4_check_geometry()
4816 ext4_msg(sb, KERN_WARNING, "groups count too large: %llu " in ext4_check_geometry()
4821 EXT4_BLOCKS_PER_GROUP(sb)); in ext4_check_geometry()
4826 (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb))); in ext4_check_geometry()
4829 ext4_msg(sb, KERN_ERR, "inodes count not valid: %u vs %llu", in ext4_check_geometry()
4838 static int ext4_group_desc_init(struct super_block *sb, in ext4_group_desc_init() argument
4843 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_group_desc_init()
4848 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / in ext4_group_desc_init()
4849 EXT4_DESC_PER_BLOCK(sb); in ext4_group_desc_init()
4850 if (ext4_has_feature_meta_bg(sb)) { in ext4_group_desc_init()
4852 ext4_msg(sb, KERN_WARNING, in ext4_group_desc_init()
4864 ext4_msg(sb, KERN_ERR, "not enough memory"); in ext4_group_desc_init()
4872 block = descriptor_loc(sb, logical_sb_block, i); in ext4_group_desc_init()
4873 ext4_sb_breadahead_unmovable(sb, block); in ext4_group_desc_init()
4879 block = descriptor_loc(sb, logical_sb_block, i); in ext4_group_desc_init()
4880 bh = ext4_sb_bread_unmovable(sb, block); in ext4_group_desc_init()
4882 ext4_msg(sb, KERN_ERR, in ext4_group_desc_init()
4892 if (!ext4_check_descriptors(sb, logical_sb_block, first_not_zeroed)) { in ext4_group_desc_init()
4893 ext4_msg(sb, KERN_ERR, "group descriptors corrupted!"); in ext4_group_desc_init()
4900 static int ext4_load_and_init_journal(struct super_block *sb, in ext4_load_and_init_journal() argument
4904 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_load_and_init_journal()
4907 err = ext4_load_journal(sb, es, ctx->journal_devnum); in ext4_load_and_init_journal()
4911 if (ext4_has_feature_64bit(sb) && in ext4_load_and_init_journal()
4912 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, in ext4_load_and_init_journal()
4914 ext4_msg(sb, KERN_ERR, "Failed to set 64-bit journal feature"); in ext4_load_and_init_journal()
4918 if (!set_journal_csum_feature_set(sb)) { in ext4_load_and_init_journal()
4919 ext4_msg(sb, KERN_ERR, "Failed to set journal checksum " in ext4_load_and_init_journal()
4924 if (test_opt2(sb, JOURNAL_FAST_COMMIT) && in ext4_load_and_init_journal()
4925 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, in ext4_load_and_init_journal()
4927 ext4_msg(sb, KERN_ERR, in ext4_load_and_init_journal()
4934 switch (test_opt(sb, DATA_FLAGS)) { in ext4_load_and_init_journal()
4942 set_opt(sb, ORDERED_DATA); in ext4_load_and_init_journal()
4945 set_opt(sb, JOURNAL_DATA); in ext4_load_and_init_journal()
4954 ext4_msg(sb, KERN_ERR, "Journal does not support " in ext4_load_and_init_journal()
4963 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA && in ext4_load_and_init_journal()
4964 test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in ext4_load_and_init_journal()
4965 ext4_msg(sb, KERN_ERR, "can't mount with " in ext4_load_and_init_journal()
4987 static int ext4_check_journal_data_mode(struct super_block *sb) in ext4_check_journal_data_mode() argument
4989 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) { in ext4_check_journal_data_mode()
4994 clear_opt(sb, DIOREAD_NOLOCK); in ext4_check_journal_data_mode()
4995 clear_opt2(sb, JOURNAL_FAST_COMMIT); in ext4_check_journal_data_mode()
4996 if (test_opt2(sb, EXPLICIT_DELALLOC)) { in ext4_check_journal_data_mode()
4997 ext4_msg(sb, KERN_ERR, "can't mount with " in ext4_check_journal_data_mode()
5001 if (test_opt(sb, DAX_ALWAYS)) { in ext4_check_journal_data_mode()
5002 ext4_msg(sb, KERN_ERR, "can't mount with " in ext4_check_journal_data_mode()
5006 if (ext4_has_feature_encrypt(sb)) { in ext4_check_journal_data_mode()
5007 ext4_msg(sb, KERN_WARNING, in ext4_check_journal_data_mode()
5011 if (test_opt(sb, DELALLOC)) in ext4_check_journal_data_mode()
5012 clear_opt(sb, DELALLOC); in ext4_check_journal_data_mode()
5014 sb->s_iflags |= SB_I_CGROUPWB; in ext4_check_journal_data_mode()
5020 static int ext4_load_super(struct super_block *sb, ext4_fsblk_t *lsb, in ext4_load_super() argument
5023 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_load_super()
5031 blocksize = sb_min_blocksize(sb, EXT4_MIN_BLOCK_SIZE); in ext4_load_super()
5033 ext4_msg(sb, KERN_ERR, "unable to set blocksize"); in ext4_load_super()
5048 bh = ext4_sb_bread_unmovable(sb, logical_sb_block); in ext4_load_super()
5050 ext4_msg(sb, KERN_ERR, "unable to read superblock"); in ext4_load_super()
5059 sb->s_magic = le16_to_cpu(es->s_magic); in ext4_load_super()
5060 if (sb->s_magic != EXT4_SUPER_MAGIC) { in ext4_load_super()
5062 ext4_msg(sb, KERN_ERR, "VFS: Can't find ext4 filesystem"); in ext4_load_super()
5068 ext4_msg(sb, KERN_ERR, in ext4_load_super()
5075 ext4_msg(sb, KERN_ERR, in ext4_load_super()
5087 if (sb->s_blocksize == blocksize) { in ext4_load_super()
5100 if (!sb_set_blocksize(sb, blocksize)) { in ext4_load_super()
5101 ext4_msg(sb, KERN_ERR, "bad block size %d", in ext4_load_super()
5109 bh = ext4_sb_bread_unmovable(sb, logical_sb_block); in ext4_load_super()
5111 ext4_msg(sb, KERN_ERR, "Can't read superblock on 2nd try"); in ext4_load_super()
5119 ext4_msg(sb, KERN_ERR, "Magic mismatch, very weird!"); in ext4_load_super()
5130 static void ext4_hash_info_init(struct super_block *sb) in ext4_hash_info_init() argument
5132 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_hash_info_init()
5140 if (ext4_has_feature_dir_index(sb)) { in ext4_hash_info_init()
5146 if (!sb_rdonly(sb)) in ext4_hash_info_init()
5151 if (!sb_rdonly(sb)) in ext4_hash_info_init()
5159 static int ext4_block_group_meta_init(struct super_block *sb, int silent) in ext4_block_group_meta_init() argument
5161 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_block_group_meta_init()
5165 has_huge_files = ext4_has_feature_huge_file(sb); in ext4_block_group_meta_init()
5166 sbi->s_bitmap_maxbytes = ext4_max_bitmap_size(sb->s_blocksize_bits, in ext4_block_group_meta_init()
5168 sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits, has_huge_files); in ext4_block_group_meta_init()
5171 if (ext4_has_feature_64bit(sb)) { in ext4_block_group_meta_init()
5175 ext4_msg(sb, KERN_ERR, in ext4_block_group_meta_init()
5186 sbi->s_inodes_per_block = sb->s_blocksize / EXT4_INODE_SIZE(sb); in ext4_block_group_meta_init()
5189 ext4_msg(sb, KERN_ERR, "VFS: Can't find ext4 filesystem"); in ext4_block_group_meta_init()
5193 sbi->s_inodes_per_group > sb->s_blocksize * 8) { in ext4_block_group_meta_init()
5194 ext4_msg(sb, KERN_ERR, "invalid inodes per group: %lu\n", in ext4_block_group_meta_init()
5200 sbi->s_desc_per_block = sb->s_blocksize / EXT4_DESC_SIZE(sb); in ext4_block_group_meta_init()
5202 sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb)); in ext4_block_group_meta_init()
5203 sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb)); in ext4_block_group_meta_init()
5208 static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb) in __ext4_fill_super() argument
5211 struct ext4_sb_info *sbi = EXT4_SB(sb); in __ext4_fill_super()
5226 part_stat_read(sb->s_bdev, sectors[STAT_WRITE]); in __ext4_fill_super()
5228 err = ext4_load_super(sb, &logical_sb_block, silent); in __ext4_fill_super()
5235 err = ext4_init_metadata_csum(sb, es); in __ext4_fill_super()
5239 ext4_set_def_opts(sb, es); in __ext4_fill_super()
5253 err = ext4_inode_info_init(sb, es); in __ext4_fill_super()
5257 err = parse_apply_sb_mount_options(sb, ctx); in __ext4_fill_super()
5264 err = ext4_check_opt_consistency(fc, sb); in __ext4_fill_super()
5268 ext4_apply_options(fc, sb); in __ext4_fill_super()
5270 err = ext4_encoding_init(sb, es); in __ext4_fill_super()
5274 err = ext4_check_journal_data_mode(sb); in __ext4_fill_super()
5278 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | in __ext4_fill_super()
5279 (test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0); in __ext4_fill_super()
5282 sb->s_flags |= SB_I_VERSION; in __ext4_fill_super()
5284 err = ext4_check_feature_compatibility(sb, es, silent); in __ext4_fill_super()
5288 err = ext4_block_group_meta_init(sb, silent); in __ext4_fill_super()
5292 ext4_hash_info_init(sb); in __ext4_fill_super()
5294 err = ext4_handle_clustersize(sb); in __ext4_fill_super()
5298 err = ext4_check_geometry(sb, es); in __ext4_fill_super()
5306 err = ext4_group_desc_init(sb, es, logical_sb_block, &first_not_zeroed); in __ext4_fill_super()
5322 ext4_msg(sb, KERN_WARNING, in __ext4_fill_super()
5333 sb->s_op = &ext4_sops; in __ext4_fill_super()
5334 sb->s_export_op = &ext4_export_ops; in __ext4_fill_super()
5335 sb->s_xattr = ext4_xattr_handlers; in __ext4_fill_super()
5337 sb->s_cop = &ext4_cryptops; in __ext4_fill_super()
5340 sb->s_vop = &ext4_verityops; in __ext4_fill_super()
5343 sb->dq_op = &ext4_quota_operations; in __ext4_fill_super()
5344 if (ext4_has_feature_quota(sb)) in __ext4_fill_super()
5345 sb->s_qcop = &dquot_quotactl_sysfile_ops; in __ext4_fill_super()
5347 sb->s_qcop = &ext4_qctl_operations; in __ext4_fill_super()
5348 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; in __ext4_fill_super()
5350 memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); in __ext4_fill_super()
5355 ext4_fast_commit_init(sb); in __ext4_fill_super()
5357 sb->s_root = NULL; in __ext4_fill_super()
5360 ext4_has_feature_orphan_present(sb) || in __ext4_fill_super()
5361 ext4_has_feature_journal_needs_recovery(sb)); in __ext4_fill_super()
5363 if (ext4_has_feature_mmp(sb) && !sb_rdonly(sb)) { in __ext4_fill_super()
5364 err = ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)); in __ext4_fill_super()
5374 if (!test_opt(sb, NOLOAD) && ext4_has_feature_journal(sb)) { in __ext4_fill_super()
5375 err = ext4_load_and_init_journal(sb, es, ctx); in __ext4_fill_super()
5378 } else if (test_opt(sb, NOLOAD) && !sb_rdonly(sb) && in __ext4_fill_super()
5379 ext4_has_feature_journal_needs_recovery(sb)) { in __ext4_fill_super()
5380 ext4_msg(sb, KERN_ERR, "required journal recovery " in __ext4_fill_super()
5385 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in __ext4_fill_super()
5386 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5391 if (test_opt2(sb, EXPLICIT_JOURNAL_CHECKSUM)) { in __ext4_fill_super()
5392 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5397 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5404 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_fill_super()
5409 clear_opt(sb, JOURNAL_CHECKSUM); in __ext4_fill_super()
5410 clear_opt(sb, DATA_FLAGS); in __ext4_fill_super()
5411 clear_opt2(sb, JOURNAL_FAST_COMMIT); in __ext4_fill_super()
5416 if (!test_opt(sb, NO_MBCACHE)) { in __ext4_fill_super()
5419 ext4_msg(sb, KERN_ERR, in __ext4_fill_super()
5425 if (ext4_has_feature_ea_inode(sb)) { in __ext4_fill_super()
5428 ext4_msg(sb, KERN_ERR, in __ext4_fill_super()
5449 if (!ext4_has_feature_bigalloc(sb)) in __ext4_fill_super()
5452 err = ext4_calculate_overhead(sb); in __ext4_fill_super()
5461 EXT4_SB(sb)->rsv_conversion_wq = in __ext4_fill_super()
5463 if (!EXT4_SB(sb)->rsv_conversion_wq) { in __ext4_fill_super()
5474 root = ext4_iget(sb, EXT4_ROOT_INO, EXT4_IGET_SPECIAL); in __ext4_fill_super()
5476 ext4_msg(sb, KERN_ERR, "get root inode failed"); in __ext4_fill_super()
5482 ext4_msg(sb, KERN_ERR, "corrupt root inode, run e2fsck"); in __ext4_fill_super()
5488 sb->s_root = d_make_root(root); in __ext4_fill_super()
5489 if (!sb->s_root) { in __ext4_fill_super()
5490 ext4_msg(sb, KERN_ERR, "get root dentry failed"); in __ext4_fill_super()
5495 err = ext4_setup_super(sb, es, sb_rdonly(sb)); in __ext4_fill_super()
5497 sb->s_flags |= SB_RDONLY; in __ext4_fill_super()
5501 ext4_set_resv_clusters(sb); in __ext4_fill_super()
5503 if (test_opt(sb, BLOCK_VALIDITY)) { in __ext4_fill_super()
5504 err = ext4_setup_system_zone(sb); in __ext4_fill_super()
5506 ext4_msg(sb, KERN_ERR, "failed to initialize system " in __ext4_fill_super()
5511 ext4_fc_replay_cleanup(sb); in __ext4_fill_super()
5513 ext4_ext_init(sb); in __ext4_fill_super()
5522 set_opt2(sb, MB_OPTIMIZE_SCAN); in __ext4_fill_super()
5524 clear_opt2(sb, MB_OPTIMIZE_SCAN); in __ext4_fill_super()
5527 err = ext4_mb_init(sb); in __ext4_fill_super()
5529 ext4_msg(sb, KERN_ERR, "failed to initialize mballoc (%d)", in __ext4_fill_super()
5546 if (ext4_has_feature_flex_bg(sb)) in __ext4_fill_super()
5547 if (!ext4_fill_flex_info(sb)) { in __ext4_fill_super()
5548 ext4_msg(sb, KERN_ERR, in __ext4_fill_super()
5555 err = ext4_register_li_request(sb, first_not_zeroed); in __ext4_fill_super()
5559 err = ext4_register_sysfs(sb); in __ext4_fill_super()
5563 err = ext4_init_orphan_info(sb); in __ext4_fill_super()
5568 if (ext4_has_feature_quota(sb) && !sb_rdonly(sb)) { in __ext4_fill_super()
5569 err = ext4_enable_quotas(sb); in __ext4_fill_super()
5580 errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err, in __ext4_fill_super()
5582 EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS; in __ext4_fill_super()
5583 ext4_orphan_cleanup(sb, es); in __ext4_fill_super()
5584 EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS; in __ext4_fill_super()
5592 ext4_superblock_csum_set(sb); in __ext4_fill_super()
5594 ext4_msg(sb, KERN_INFO, "recovery complete"); in __ext4_fill_super()
5595 err = ext4_mark_recovery_complete(sb, es); in __ext4_fill_super()
5600 if (test_opt(sb, DISCARD) && !bdev_max_discard_sectors(sb->s_bdev)) in __ext4_fill_super()
5601 ext4_msg(sb, KERN_WARNING, in __ext4_fill_super()
5617 ext4_quotas_off(sb, EXT4_MAXQUOTAS); in __ext4_fill_super()
5619 ext4_release_orphan_info(sb); in __ext4_fill_super()
5621 ext4_unregister_sysfs(sb); in __ext4_fill_super()
5624 ext4_unregister_li_request(sb); in __ext4_fill_super()
5626 ext4_mb_release(sb); in __ext4_fill_super()
5630 ext4_ext_release(sb); in __ext4_fill_super()
5631 ext4_release_system_zone(sb); in __ext4_fill_super()
5633 dput(sb->s_root); in __ext4_fill_super()
5634 sb->s_root = NULL; in __ext4_fill_super()
5636 ext4_msg(sb, KERN_ERR, "mount failed"); in __ext4_fill_super()
5637 if (EXT4_SB(sb)->rsv_conversion_wq) in __ext4_fill_super()
5638 destroy_workqueue(EXT4_SB(sb)->rsv_conversion_wq); in __ext4_fill_super()
5665 utf8_unload(sb->s_encoding); in __ext4_fill_super()
5670 kfree(get_qf_name(sb, sbi, i)); in __ext4_fill_super()
5676 blkdev_put(sbi->s_journal_bdev, sb); in __ext4_fill_super()
5679 invalidate_bdev(sb->s_bdev); in __ext4_fill_super()
5680 sb->s_fs_info = NULL; in __ext4_fill_super()
5684 static int ext4_fill_super(struct super_block *sb, struct fs_context *fc) in ext4_fill_super() argument
5691 sbi = ext4_alloc_sbi(sb); in ext4_fill_super()
5698 strreplace(sb->s_id, '/', '!'); in ext4_fill_super()
5704 ret = __ext4_fill_super(fc, sb); in ext4_fill_super()
5709 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) in ext4_fill_super()
5711 else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) in ext4_fill_super()
5719 ext4_msg(sb, KERN_INFO, "mounted filesystem %pU %s with%s. " in ext4_fill_super()
5720 "Quota mode: %s.", &sb->s_uuid, in ext4_fill_super()
5721 sb_rdonly(sb) ? "ro" : "r/w", descr, in ext4_fill_super()
5722 ext4_quota_mode(sb)); in ext4_fill_super()
5725 ext4_update_overhead(sb, false); in ext4_fill_super()
5744 static void ext4_init_journal_params(struct super_block *sb, journal_t *journal) in ext4_init_journal_params() argument
5746 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_init_journal_params()
5751 ext4_fc_init(sb, journal); in ext4_init_journal_params()
5754 if (test_opt(sb, BARRIER)) in ext4_init_journal_params()
5758 if (test_opt(sb, DATA_ERR_ABORT)) in ext4_init_journal_params()
5770 static struct inode *ext4_get_journal_inode(struct super_block *sb, in ext4_get_journal_inode() argument
5780 journal_inode = ext4_iget(sb, journal_inum, EXT4_IGET_SPECIAL); in ext4_get_journal_inode()
5782 ext4_msg(sb, KERN_ERR, "no journal found"); in ext4_get_journal_inode()
5788 ext4_msg(sb, KERN_ERR, "journal inode is deleted"); in ext4_get_journal_inode()
5792 ext4_msg(sb, KERN_ERR, "invalid journal inode"); in ext4_get_journal_inode()
5824 static journal_t *ext4_open_inode_journal(struct super_block *sb, in ext4_open_inode_journal() argument
5830 journal_inode = ext4_get_journal_inode(sb, journal_inum); in ext4_open_inode_journal()
5836 ext4_msg(sb, KERN_ERR, "Could not load journal inode"); in ext4_open_inode_journal()
5840 journal->j_private = sb; in ext4_open_inode_journal()
5842 ext4_init_journal_params(sb, journal); in ext4_open_inode_journal()
5846 static struct block_device *ext4_get_journal_blkdev(struct super_block *sb, in ext4_get_journal_blkdev() argument
5859 up_write(&sb->s_umount); in ext4_get_journal_blkdev()
5860 bdev = blkdev_get_by_dev(j_dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb, in ext4_get_journal_blkdev()
5862 down_write(&sb->s_umount); in ext4_get_journal_blkdev()
5864 ext4_msg(sb, KERN_ERR, in ext4_get_journal_blkdev()
5870 blocksize = sb->s_blocksize; in ext4_get_journal_blkdev()
5873 ext4_msg(sb, KERN_ERR, in ext4_get_journal_blkdev()
5884 ext4_msg(sb, KERN_ERR, "couldn't read superblock of " in ext4_get_journal_blkdev()
5894 ext4_msg(sb, KERN_ERR, "external journal has bad superblock"); in ext4_get_journal_blkdev()
5901 es->s_checksum != ext4_superblock_csum(sb, es)) { in ext4_get_journal_blkdev()
5902 ext4_msg(sb, KERN_ERR, "external journal has corrupt superblock"); in ext4_get_journal_blkdev()
5907 if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) { in ext4_get_journal_blkdev()
5908 ext4_msg(sb, KERN_ERR, "journal UUID does not match"); in ext4_get_journal_blkdev()
5921 blkdev_put(bdev, sb); in ext4_get_journal_blkdev()
5925 static journal_t *ext4_open_dev_journal(struct super_block *sb, in ext4_open_dev_journal() argument
5934 journal_bdev = ext4_get_journal_blkdev(sb, j_dev, &j_start, &j_len); in ext4_open_dev_journal()
5938 journal = jbd2_journal_init_dev(journal_bdev, sb->s_bdev, j_start, in ext4_open_dev_journal()
5939 j_len, sb->s_blocksize); in ext4_open_dev_journal()
5941 ext4_msg(sb, KERN_ERR, "failed to create device journal"); in ext4_open_dev_journal()
5946 ext4_msg(sb, KERN_ERR, "External journal has more than one " in ext4_open_dev_journal()
5952 journal->j_private = sb; in ext4_open_dev_journal()
5953 EXT4_SB(sb)->s_journal_bdev = journal_bdev; in ext4_open_dev_journal()
5954 ext4_init_journal_params(sb, journal); in ext4_open_dev_journal()
5960 blkdev_put(journal_bdev, sb); in ext4_open_dev_journal()
5964 static int ext4_load_journal(struct super_block *sb, in ext4_load_journal() argument
5975 if (WARN_ON_ONCE(!ext4_has_feature_journal(sb))) in ext4_load_journal()
5980 ext4_msg(sb, KERN_INFO, "external journal device major/minor " in ext4_load_journal()
5987 ext4_msg(sb, KERN_ERR, in ext4_load_journal()
5993 journal = ext4_open_inode_journal(sb, journal_inum); in ext4_load_journal()
5997 journal = ext4_open_dev_journal(sb, journal_dev); in ext4_load_journal()
6003 really_read_only = bdev_read_only(sb->s_bdev) | journal_dev_ro; in ext4_load_journal()
6005 if (journal_dev_ro && !sb_rdonly(sb)) { in ext4_load_journal()
6006 ext4_msg(sb, KERN_ERR, in ext4_load_journal()
6017 if (ext4_has_feature_journal_needs_recovery(sb)) { in ext4_load_journal()
6018 if (sb_rdonly(sb)) { in ext4_load_journal()
6019 ext4_msg(sb, KERN_INFO, "INFO: recovery " in ext4_load_journal()
6022 ext4_msg(sb, KERN_ERR, "write access " in ext4_load_journal()
6028 ext4_msg(sb, KERN_INFO, "write access will " in ext4_load_journal()
6034 ext4_msg(sb, KERN_INFO, "barriers disabled"); in ext4_load_journal()
6036 if (!ext4_has_feature_journal_needs_recovery(sb)) in ext4_load_journal()
6055 es->s_state |= cpu_to_le16(EXT4_SB(sb)->s_mount_state & in ext4_load_journal()
6062 err2 = ext4_commit_super(sb); in ext4_load_journal()
6068 ext4_msg(sb, KERN_ERR, "error loading journal"); in ext4_load_journal()
6072 EXT4_SB(sb)->s_journal = journal; in ext4_load_journal()
6073 err = ext4_clear_journal_err(sb, es); in ext4_load_journal()
6075 EXT4_SB(sb)->s_journal = NULL; in ext4_load_journal()
6083 ext4_commit_super(sb); in ext4_load_journal()
6088 ext4_commit_super(sb); in ext4_load_journal()
6098 /* Copy state of EXT4_SB(sb) into buffer for on-disk superblock */
6099 static void ext4_update_super(struct super_block *sb) in ext4_update_super() argument
6101 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_update_super()
6116 if (!sb_rdonly(sb)) in ext4_update_super()
6120 ((part_stat_read(sb->s_bdev, sectors[STAT_WRITE]) - in ext4_update_super()
6170 ext4_superblock_csum_set(sb); in ext4_update_super()
6174 static int ext4_commit_super(struct super_block *sb) in ext4_commit_super() argument
6176 struct buffer_head *sbh = EXT4_SB(sb)->s_sbh; in ext4_commit_super()
6180 if (block_device_ejected(sb)) in ext4_commit_super()
6183 ext4_update_super(sb); in ext4_commit_super()
6201 ext4_msg(sb, KERN_ERR, "previous I/O error to " in ext4_commit_super()
6211 (test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh); in ext4_commit_super()
6214 ext4_msg(sb, KERN_ERR, "I/O error while writing " in ext4_commit_super()
6228 static int ext4_mark_recovery_complete(struct super_block *sb, in ext4_mark_recovery_complete() argument
6232 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_mark_recovery_complete()
6234 if (!ext4_has_feature_journal(sb)) { in ext4_mark_recovery_complete()
6236 ext4_error(sb, "Journal got removed while the fs was " in ext4_mark_recovery_complete()
6247 if (sb_rdonly(sb) && (ext4_has_feature_journal_needs_recovery(sb) || in ext4_mark_recovery_complete()
6248 ext4_has_feature_orphan_present(sb))) { in ext4_mark_recovery_complete()
6249 if (!ext4_orphan_file_empty(sb)) { in ext4_mark_recovery_complete()
6250 ext4_error(sb, "Orphan file not empty on read-only fs."); in ext4_mark_recovery_complete()
6254 ext4_clear_feature_journal_needs_recovery(sb); in ext4_mark_recovery_complete()
6255 ext4_clear_feature_orphan_present(sb); in ext4_mark_recovery_complete()
6256 ext4_commit_super(sb); in ext4_mark_recovery_complete()
6268 static int ext4_clear_journal_err(struct super_block *sb, in ext4_clear_journal_err() argument
6275 if (!ext4_has_feature_journal(sb)) { in ext4_clear_journal_err()
6276 ext4_error(sb, "Journal got removed while the fs was mounted!"); in ext4_clear_journal_err()
6280 journal = EXT4_SB(sb)->s_journal; in ext4_clear_journal_err()
6291 errstr = ext4_decode_error(sb, j_errno, nbuf); in ext4_clear_journal_err()
6292 ext4_warning(sb, "Filesystem error recorded " in ext4_clear_journal_err()
6295 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in ext4_clear_journal_err()
6297 j_errno = ext4_commit_super(sb); in ext4_clear_journal_err()
6300 ext4_warning(sb, "Marked fs in need of filesystem check."); in ext4_clear_journal_err()
6312 int ext4_force_commit(struct super_block *sb) in ext4_force_commit() argument
6314 return ext4_journal_force_commit(EXT4_SB(sb)->s_journal); in ext4_force_commit()
6317 static int ext4_sync_fs(struct super_block *sb, int wait) in ext4_sync_fs() argument
6322 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_sync_fs()
6324 if (unlikely(ext4_forced_shutdown(sb))) in ext4_sync_fs()
6327 trace_ext4_sync_fs(sb, wait); in ext4_sync_fs()
6333 dquot_writeback_dquots(sb, -1); in ext4_sync_fs()
6350 } else if (wait && test_opt(sb, BARRIER)) in ext4_sync_fs()
6354 err = blkdev_issue_flush(sb->s_bdev); in ext4_sync_fs()
6370 static int ext4_freeze(struct super_block *sb) in ext4_freeze() argument
6373 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_freeze()
6388 ext4_clear_feature_journal_needs_recovery(sb); in ext4_freeze()
6389 if (ext4_orphan_file_empty(sb)) in ext4_freeze()
6390 ext4_clear_feature_orphan_present(sb); in ext4_freeze()
6393 error = ext4_commit_super(sb); in ext4_freeze()
6405 static int ext4_unfreeze(struct super_block *sb) in ext4_unfreeze() argument
6407 if (ext4_forced_shutdown(sb)) in ext4_unfreeze()
6410 if (EXT4_SB(sb)->s_journal) { in ext4_unfreeze()
6412 ext4_set_feature_journal_needs_recovery(sb); in ext4_unfreeze()
6413 if (ext4_has_feature_orphan_file(sb)) in ext4_unfreeze()
6414 ext4_set_feature_orphan_present(sb); in ext4_unfreeze()
6417 ext4_commit_super(sb); in ext4_unfreeze()
6437 static int __ext4_remount(struct fs_context *fc, struct super_block *sb) in __ext4_remount() argument
6441 struct ext4_sb_info *sbi = EXT4_SB(sb); in __ext4_remount()
6455 old_sb_flags = sb->s_flags; in __ext4_remount()
6467 char *qf_name = get_qf_name(sb, sbi, i); in __ext4_remount()
6494 alloc_ctx = ext4_writepages_down_write(sb); in __ext4_remount()
6495 ext4_apply_options(fc, sb); in __ext4_remount()
6496 ext4_writepages_up_write(sb, alloc_ctx); in __ext4_remount()
6499 test_opt(sb, JOURNAL_CHECKSUM)) { in __ext4_remount()
6500 ext4_msg(sb, KERN_ERR, "changing journal_checksum " in __ext4_remount()
6505 if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) { in __ext4_remount()
6506 if (test_opt2(sb, EXPLICIT_DELALLOC)) { in __ext4_remount()
6507 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_remount()
6512 if (test_opt(sb, DIOREAD_NOLOCK)) { in __ext4_remount()
6513 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_remount()
6518 } else if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA) { in __ext4_remount()
6519 if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { in __ext4_remount()
6520 ext4_msg(sb, KERN_ERR, "can't mount with " in __ext4_remount()
6528 ext4_msg(sb, KERN_ERR, "can't enable nombcache during remount"); in __ext4_remount()
6533 if (test_opt2(sb, ABORT)) in __ext4_remount()
6534 ext4_abort(sb, ESHUTDOWN, "Abort forced by user"); in __ext4_remount()
6536 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | in __ext4_remount()
6537 (test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0); in __ext4_remount()
6542 ext4_init_journal_params(sb, sbi->s_journal); in __ext4_remount()
6549 if ((bool)(fc->sb_flags & SB_RDONLY) != sb_rdonly(sb)) { in __ext4_remount()
6550 if (ext4_forced_shutdown(sb)) { in __ext4_remount()
6556 err = sync_filesystem(sb); in __ext4_remount()
6559 err = dquot_suspend(sb, -1); in __ext4_remount()
6567 sb->s_flags |= SB_RDONLY; in __ext4_remount()
6583 ext4_mark_recovery_complete(sb, es); in __ext4_remount()
6587 if (ext4_has_feature_readonly(sb) || in __ext4_remount()
6588 !ext4_feature_set_ok(sb, 0)) { in __ext4_remount()
6598 ext4_get_group_desc(sb, g, NULL); in __ext4_remount()
6600 if (!ext4_group_desc_csum_verify(sb, g, gdp)) { in __ext4_remount()
6601 ext4_msg(sb, KERN_ERR, in __ext4_remount()
6603 g, le16_to_cpu(ext4_group_desc_csum(sb, g, gdp)), in __ext4_remount()
6615 if (es->s_last_orphan || !ext4_orphan_file_empty(sb)) { in __ext4_remount()
6616 ext4_msg(sb, KERN_WARNING, "Couldn't " in __ext4_remount()
6631 err = ext4_clear_journal_err(sb, es); in __ext4_remount()
6638 err = ext4_setup_super(sb, es, 0); in __ext4_remount()
6642 sb->s_flags &= ~SB_RDONLY; in __ext4_remount()
6643 if (ext4_has_feature_mmp(sb)) { in __ext4_remount()
6644 err = ext4_multi_mount_protect(sb, in __ext4_remount()
6660 if (test_opt(sb, BLOCK_VALIDITY) && !sbi->s_system_blks) { in __ext4_remount()
6661 err = ext4_setup_system_zone(sb); in __ext4_remount()
6667 err = ext4_commit_super(sb); in __ext4_remount()
6674 if (sb_any_quota_suspended(sb)) in __ext4_remount()
6675 dquot_resume(sb, -1); in __ext4_remount()
6676 else if (ext4_has_feature_quota(sb)) { in __ext4_remount()
6677 err = ext4_enable_quotas(sb); in __ext4_remount()
6686 if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) in __ext4_remount()
6687 ext4_release_system_zone(sb); in __ext4_remount()
6693 if (sb_rdonly(sb) || !test_opt(sb, INIT_INODE_TABLE)) in __ext4_remount()
6694 ext4_unregister_li_request(sb); in __ext4_remount()
6697 first_not_zeroed = ext4_has_uninit_itable(sb); in __ext4_remount()
6698 ext4_register_li_request(sb, first_not_zeroed); in __ext4_remount()
6701 if (!ext4_has_feature_mmp(sb) || sb_rdonly(sb)) in __ext4_remount()
6711 if (sb_rdonly(sb) && !(old_sb_flags & SB_RDONLY) && in __ext4_remount()
6712 sb_any_quota_suspended(sb)) in __ext4_remount()
6713 dquot_resume(sb, -1); in __ext4_remount()
6715 alloc_ctx = ext4_writepages_down_write(sb); in __ext4_remount()
6716 sb->s_flags = old_sb_flags; in __ext4_remount()
6724 ext4_writepages_up_write(sb, alloc_ctx); in __ext4_remount()
6726 if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) in __ext4_remount()
6727 ext4_release_system_zone(sb); in __ext4_remount()
6731 to_free[i] = get_qf_name(sb, sbi, i); in __ext4_remount()
6738 if (!ext4_has_feature_mmp(sb) || sb_rdonly(sb)) in __ext4_remount()
6745 struct super_block *sb = fc->root->d_sb; in ext4_reconfigure() local
6748 fc->s_fs_info = EXT4_SB(sb); in ext4_reconfigure()
6750 ret = ext4_check_opt_consistency(fc, sb); in ext4_reconfigure()
6754 ret = __ext4_remount(fc, sb); in ext4_reconfigure()
6758 ext4_msg(sb, KERN_INFO, "re-mounted %pU %s. Quota mode: %s.", in ext4_reconfigure()
6759 &sb->s_uuid, sb_rdonly(sb) ? "ro" : "r/w", in ext4_reconfigure()
6760 ext4_quota_mode(sb)); in ext4_reconfigure()
6766 static int ext4_statfs_project(struct super_block *sb, in ext4_statfs_project() argument
6775 dquot = dqget(sb, qid); in ext4_statfs_project()
6782 limit >>= sb->s_blocksize_bits; in ext4_statfs_project()
6786 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits; in ext4_statfs_project()
6810 struct super_block *sb = dentry->d_sb; in ext4_statfs() local
6811 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_statfs()
6817 if (!test_opt(sb, MINIX_DF)) in ext4_statfs()
6821 buf->f_bsize = sb->s_blocksize; in ext4_statfs()
6838 sb_has_quota_limits_enabled(sb, PRJQUOTA)) in ext4_statfs()
6839 ext4_statfs_project(sb, EXT4_I(dentry->d_inode)->i_projid, buf); in ext4_statfs()
6911 struct super_block *sb = dquot->dq_sb; in ext4_mark_dquot_dirty() local
6913 if (ext4_is_quota_journalled(sb)) { in ext4_mark_dquot_dirty()
6921 static int ext4_write_info(struct super_block *sb, int type) in ext4_write_info() argument
6927 handle = ext4_journal_start_sb(sb, EXT4_HT_QUOTA, 2); in ext4_write_info()
6930 ret = dquot_commit_info(sb, type); in ext4_write_info()
6954 static int ext4_quota_on(struct super_block *sb, int type, int format_id, in ext4_quota_on() argument
6959 if (!test_opt(sb, QUOTA)) in ext4_quota_on()
6963 if (path->dentry->d_sb != sb) in ext4_quota_on()
6971 if (EXT4_SB(sb)->s_qf_names[type]) { in ext4_quota_on()
6973 if (path->dentry->d_parent != sb->s_root) in ext4_quota_on()
6974 ext4_msg(sb, KERN_WARNING, in ext4_quota_on()
6977 sb_dqopt(sb)->flags |= DQUOT_NOLIST_DIRTY; in ext4_quota_on()
6983 sb_dqopt(sb)->flags &= ~DQUOT_NOLIST_DIRTY; in ext4_quota_on()
6987 err = dquot_quota_on(sb, type, format_id, path); in ext4_quota_on()
7009 dquot_quota_off(sb, type); in ext4_quota_on()
7031 static int ext4_quota_enable(struct super_block *sb, int type, int format_id, in ext4_quota_enable() argument
7037 le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum), in ext4_quota_enable()
7038 le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum), in ext4_quota_enable()
7039 le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum) in ext4_quota_enable()
7042 BUG_ON(!ext4_has_feature_quota(sb)); in ext4_quota_enable()
7048 ext4_error(sb, "Bad quota inum: %lu, type: %d", in ext4_quota_enable()
7053 qf_inode = ext4_iget(sb, qf_inums[type], EXT4_IGET_SPECIAL); in ext4_quota_enable()
7055 ext4_error(sb, "Bad quota inode: %lu, type: %d", in ext4_quota_enable()
7072 int ext4_enable_quotas(struct super_block *sb) in ext4_enable_quotas() argument
7076 le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum), in ext4_enable_quotas()
7077 le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum), in ext4_enable_quotas()
7078 le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum) in ext4_enable_quotas()
7081 test_opt(sb, USRQUOTA), in ext4_enable_quotas()
7082 test_opt(sb, GRPQUOTA), in ext4_enable_quotas()
7083 test_opt(sb, PRJQUOTA), in ext4_enable_quotas()
7086 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; in ext4_enable_quotas()
7089 err = ext4_quota_enable(sb, type, QFMT_VFS_V1, in ext4_enable_quotas()
7093 ext4_warning(sb, in ext4_enable_quotas()
7099 ext4_quotas_off(sb, type); in ext4_enable_quotas()
7107 static int ext4_quota_off(struct super_block *sb, int type) in ext4_quota_off() argument
7109 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_off()
7115 if (test_opt(sb, DELALLOC)) in ext4_quota_off()
7116 sync_filesystem(sb); in ext4_quota_off()
7121 err = dquot_quota_off(sb, type); in ext4_quota_off()
7122 if (err || ext4_has_feature_quota(sb)) in ext4_quota_off()
7129 if (sb_rdonly(sb)) in ext4_quota_off()
7155 return dquot_quota_off(sb, type); in ext4_quota_off()
7162 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data, in ext4_quota_read() argument
7165 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_read()
7166 ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); in ext4_quota_read()
7167 int offset = off & (sb->s_blocksize - 1); in ext4_quota_read()
7179 tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); in ext4_quota_read()
7198 static ssize_t ext4_quota_write(struct super_block *sb, int type, in ext4_quota_write() argument
7201 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_write()
7202 ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb); in ext4_quota_write()
7203 int err = 0, err2 = 0, offset = off & (sb->s_blocksize - 1); in ext4_quota_write()
7209 ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)" in ext4_quota_write()
7218 if (sb->s_blocksize - offset < len) { in ext4_quota_write()
7219 ext4_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)" in ext4_quota_write()
7236 err = ext4_journal_get_write_access(handle, sb, bh, EXT4_JTR_NONE); in ext4_quota_write()
7273 static inline int ext2_feature_set_ok(struct super_block *sb) in ext2_feature_set_ok() argument
7275 if (ext4_has_unknown_ext2_incompat_features(sb)) in ext2_feature_set_ok()
7277 if (sb_rdonly(sb)) in ext2_feature_set_ok()
7279 if (ext4_has_unknown_ext2_ro_compat_features(sb)) in ext2_feature_set_ok()
7286 static inline int ext2_feature_set_ok(struct super_block *sb) { return 0; } in ext2_feature_set_ok() argument
7302 static inline int ext3_feature_set_ok(struct super_block *sb) in ext3_feature_set_ok() argument
7304 if (ext4_has_unknown_ext3_incompat_features(sb)) in ext3_feature_set_ok()
7306 if (!ext4_has_feature_journal(sb)) in ext3_feature_set_ok()
7308 if (sb_rdonly(sb)) in ext3_feature_set_ok()
7310 if (ext4_has_unknown_ext3_ro_compat_features(sb)) in ext3_feature_set_ok()
7315 static void ext4_kill_sb(struct super_block *sb) in ext4_kill_sb() argument
7317 struct ext4_sb_info *sbi = EXT4_SB(sb); in ext4_kill_sb()
7320 kill_block_super(sb); in ext4_kill_sb()
7323 blkdev_put(journal_bdev, sb); in ext4_kill_sb()