Lines Matching +full:es +full:- +full:enable
1 // SPDX-License-Identifier: GPL-2.0
7 * Laboratoire MASI - Institut Blaise Pascal
16 * Big-endian to little-endian byte-swapping/bitmaps by
28 #include <linux/backing-dev.h>
71 struct ext4_super_block *es);
73 struct ext4_super_block *es);
93 * Note the difference between i_mmap_sem (EXT4_I(inode)->i_mmap_sem) and
94 * i_mmap_rwsem (inode->i_mmap_rwsem)!
97 * mmap_lock -> sb_start_pagefault -> i_mmap_sem (r) -> transaction start ->
98 * page lock -> i_data_sem (rw)
101 * sb_start_write -> i_mutex -> mmap_lock
102 * sb_start_write -> i_mutex -> transaction start -> page lock ->
106 * sb_start_write -> i_mutex -> i_mmap_sem (w) -> i_mmap_rwsem (w) -> page lock
107 * sb_start_write -> i_mutex -> i_mmap_sem (w) -> transaction start ->
111 * sb_start_write -> i_mutex -> mmap_lock
112 * sb_start_write -> i_mutex -> transaction start -> i_data_sem (rw)
115 * transaction start -> page lock(s) -> i_data_sem (rw)
128 #define IS_EXT2_SB(sb) ((sb)->s_bdev->bd_holder == &ext2_fs_type)
143 #define IS_EXT3_SB(sb) ((sb)->s_bdev->bd_holder == &ext3_fs_type)
156 bh->b_end_io = end_io ? end_io : end_buffer_read_sync; in __ext4_read_bh()
187 return -EIO; in ext4_read_bh()
215 return ERR_PTR(-ENOMEM); in __ext4_sb_bread_gfp()
251 struct ext4_super_block *es) in ext4_verify_csum_type() argument
256 return es->s_checksum_type == EXT4_CRC32C_CHKSUM; in ext4_verify_csum_type()
260 struct ext4_super_block *es) in ext4_superblock_csum() argument
266 csum = ext4_chksum(sbi, ~0, (char *)es, offset); in ext4_superblock_csum()
272 struct ext4_super_block *es) in ext4_superblock_csum_verify() argument
277 return es->s_checksum == ext4_superblock_csum(sb, es); in ext4_superblock_csum_verify()
282 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in ext4_superblock_csum_set() local
287 es->s_checksum = ext4_superblock_csum(sb, es); in ext4_superblock_csum_set()
293 return le32_to_cpu(bg->bg_block_bitmap_lo) | in ext4_block_bitmap()
295 (ext4_fsblk_t)le32_to_cpu(bg->bg_block_bitmap_hi) << 32 : 0); in ext4_block_bitmap()
301 return le32_to_cpu(bg->bg_inode_bitmap_lo) | in ext4_inode_bitmap()
303 (ext4_fsblk_t)le32_to_cpu(bg->bg_inode_bitmap_hi) << 32 : 0); in ext4_inode_bitmap()
309 return le32_to_cpu(bg->bg_inode_table_lo) | in ext4_inode_table()
311 (ext4_fsblk_t)le32_to_cpu(bg->bg_inode_table_hi) << 32 : 0); in ext4_inode_table()
317 return le16_to_cpu(bg->bg_free_blocks_count_lo) | in ext4_free_group_clusters()
319 (__u32)le16_to_cpu(bg->bg_free_blocks_count_hi) << 16 : 0); in ext4_free_group_clusters()
325 return le16_to_cpu(bg->bg_free_inodes_count_lo) | in ext4_free_inodes_count()
327 (__u32)le16_to_cpu(bg->bg_free_inodes_count_hi) << 16 : 0); in ext4_free_inodes_count()
333 return le16_to_cpu(bg->bg_used_dirs_count_lo) | in ext4_used_dirs_count()
335 (__u32)le16_to_cpu(bg->bg_used_dirs_count_hi) << 16 : 0); in ext4_used_dirs_count()
341 return le16_to_cpu(bg->bg_itable_unused_lo) | in ext4_itable_unused_count()
343 (__u32)le16_to_cpu(bg->bg_itable_unused_hi) << 16 : 0); in ext4_itable_unused_count()
349 bg->bg_block_bitmap_lo = cpu_to_le32((u32)blk); in ext4_block_bitmap_set()
351 bg->bg_block_bitmap_hi = cpu_to_le32(blk >> 32); in ext4_block_bitmap_set()
357 bg->bg_inode_bitmap_lo = cpu_to_le32((u32)blk); in ext4_inode_bitmap_set()
359 bg->bg_inode_bitmap_hi = cpu_to_le32(blk >> 32); in ext4_inode_bitmap_set()
365 bg->bg_inode_table_lo = cpu_to_le32((u32)blk); in ext4_inode_table_set()
367 bg->bg_inode_table_hi = cpu_to_le32(blk >> 32); in ext4_inode_table_set()
373 bg->bg_free_blocks_count_lo = cpu_to_le16((__u16)count); in ext4_free_group_clusters_set()
375 bg->bg_free_blocks_count_hi = cpu_to_le16(count >> 16); in ext4_free_group_clusters_set()
381 bg->bg_free_inodes_count_lo = cpu_to_le16((__u16)count); in ext4_free_inodes_set()
383 bg->bg_free_inodes_count_hi = cpu_to_le16(count >> 16); in ext4_free_inodes_set()
389 bg->bg_used_dirs_count_lo = cpu_to_le16((__u16)count); in ext4_used_dirs_set()
391 bg->bg_used_dirs_count_hi = cpu_to_le16(count >> 16); in ext4_used_dirs_set()
397 bg->bg_itable_unused_lo = cpu_to_le16((__u16)count); in ext4_itable_unused_set()
399 bg->bg_itable_unused_hi = cpu_to_le16(count >> 16); in ext4_itable_unused_set()
404 now = clamp_val(now, 0, (1ull << 40) - 1); in __ext4_update_tstamp()
414 #define ext4_update_tstamp(es, tstamp) \ argument
415 __ext4_update_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi, \
417 #define ext4_get_tstamp(es, tstamp) \ argument
418 __ext4_get_tstamp(&(es)->tstamp, &(es)->tstamp ## _hi)
421 * The del_gendisk() function uninitializes the disk-specific data
430 struct inode *bd_inode = sb->s_bdev->bd_inode; in block_device_ejected()
433 return bdi->dev == NULL; in block_device_ejected()
438 struct super_block *sb = journal->j_private; in ext4_journal_commit_callback()
443 BUG_ON(txn->t_state == T_FINISHED); in ext4_journal_commit_callback()
445 ext4_process_freed_data(sb, txn->t_tid); in ext4_journal_commit_callback()
447 spin_lock(&sbi->s_md_lock); in ext4_journal_commit_callback()
448 while (!list_empty(&txn->t_private_list)) { in ext4_journal_commit_callback()
449 jce = list_entry(txn->t_private_list.next, in ext4_journal_commit_callback()
451 list_del_init(&jce->jce_list); in ext4_journal_commit_callback()
452 spin_unlock(&sbi->s_md_lock); in ext4_journal_commit_callback()
453 jce->jce_func(sb, jce, error); in ext4_journal_commit_callback()
454 spin_lock(&sbi->s_md_lock); in ext4_journal_commit_callback()
456 spin_unlock(&sbi->s_md_lock); in ext4_journal_commit_callback()
494 (jh && (jh->b_transaction != transaction || in ext4_journalled_writepage_callback()
495 jh->b_next_transaction))) { in ext4_journalled_writepage_callback()
499 } while ((bh = bh->b_this_page) != head); in ext4_journalled_writepage_callback()
507 struct address_space *mapping = jinode->i_vfs_inode->i_mapping; in ext4_journalled_submit_inode_data_buffers()
511 .range_start = jinode->i_dirty_start, in ext4_journalled_submit_inode_data_buffers()
512 .range_end = jinode->i_dirty_end, in ext4_journalled_submit_inode_data_buffers()
517 jinode->i_transaction); in ext4_journalled_submit_inode_data_buffers()
524 if (ext4_should_journal_data(jinode->i_vfs_inode)) in ext4_journal_submit_inode_data_buffers()
536 if (!ext4_should_journal_data(jinode->i_vfs_inode)) in ext4_journal_finish_inode_data_buffers()
594 spin_lock(&sbi->s_error_lock); in save_error_info()
595 sbi->s_add_error_count++; in save_error_info()
596 sbi->s_last_error_code = error; in save_error_info()
597 sbi->s_last_error_line = line; in save_error_info()
598 sbi->s_last_error_ino = ino; in save_error_info()
599 sbi->s_last_error_block = block; in save_error_info()
600 sbi->s_last_error_func = func; in save_error_info()
601 sbi->s_last_error_time = ktime_get_real_seconds(); in save_error_info()
602 if (!sbi->s_first_error_time) { in save_error_info()
603 sbi->s_first_error_code = error; in save_error_info()
604 sbi->s_first_error_line = line; in save_error_info()
605 sbi->s_first_error_ino = ino; in save_error_info()
606 sbi->s_first_error_block = block; in save_error_info()
607 sbi->s_first_error_func = func; in save_error_info()
608 sbi->s_first_error_time = sbi->s_last_error_time; in save_error_info()
610 spin_unlock(&sbi->s_error_lock); in save_error_info()
637 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_handle_error()
640 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in ext4_handle_error()
647 jbd2_journal_abort(journal, -EIO); in ext4_handle_error()
650 if (!bdev_read_only(sb->s_bdev)) { in ext4_handle_error()
659 schedule_work(&EXT4_SB(sb)->s_error_work); in ext4_handle_error()
666 * could panic during 'reboot -f' as the underlying device got already in ext4_handle_error()
670 panic("EXT4-fs (device %s): panic forced after error\n", in ext4_handle_error()
671 sb->s_id); in ext4_handle_error()
677 ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only"); in ext4_handle_error()
681 * sb->s_umount semaphore and setting it without proper remount in ext4_handle_error()
691 journal_t *journal = sbi->s_journal; in flush_stashed_error_work()
702 if (!sb_rdonly(sbi->s_sb) && journal) { in flush_stashed_error_work()
703 struct buffer_head *sbh = sbi->s_sbh; in flush_stashed_error_work()
711 ext4_update_super(sbi->s_sb); in flush_stashed_error_work()
713 ext4_msg(sbi->s_sb, KERN_ERR, "previous I/O error to " in flush_stashed_error_work()
731 ext4_commit_super(sbi->s_sb); in flush_stashed_error_work()
735 ___ratelimit(&(EXT4_SB(sb)->s_err_ratelimit_state), \
736 "EXT4-fs error")
754 "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n", in __ext4_error()
755 sb->s_id, function, line, current->comm, &vaf); in __ext4_error()
768 if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) in __ext4_error_inode()
771 trace_ext4_error(inode->i_sb, function, line); in __ext4_error_inode()
772 if (ext4_error_ratelimit(inode->i_sb)) { in __ext4_error_inode()
777 printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: " in __ext4_error_inode()
779 inode->i_sb->s_id, function, line, inode->i_ino, in __ext4_error_inode()
780 block, current->comm, &vaf); in __ext4_error_inode()
782 printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: " in __ext4_error_inode()
784 inode->i_sb->s_id, function, line, inode->i_ino, in __ext4_error_inode()
785 current->comm, &vaf); in __ext4_error_inode()
788 ext4_handle_error(inode->i_sb, false, error, inode->i_ino, block, in __ext4_error_inode()
801 if (unlikely(ext4_forced_shutdown(EXT4_SB(inode->i_sb)))) in __ext4_error_file()
804 trace_ext4_error(inode->i_sb, function, line); in __ext4_error_file()
805 if (ext4_error_ratelimit(inode->i_sb)) { in __ext4_error_file()
814 "EXT4-fs error (device %s): %s:%d: inode #%lu: " in __ext4_error_file()
816 inode->i_sb->s_id, function, line, inode->i_ino, in __ext4_error_file()
817 block, current->comm, path, &vaf); in __ext4_error_file()
820 "EXT4-fs error (device %s): %s:%d: inode #%lu: " in __ext4_error_file()
822 inode->i_sb->s_id, function, line, inode->i_ino, in __ext4_error_file()
823 current->comm, path, &vaf); in __ext4_error_file()
826 ext4_handle_error(inode->i_sb, false, EFSCORRUPTED, inode->i_ino, block, in __ext4_error_file()
836 case -EFSCORRUPTED: in ext4_decode_error()
839 case -EFSBADCRC: in ext4_decode_error()
842 case -EIO: in ext4_decode_error()
845 case -ENOMEM: in ext4_decode_error()
848 case -EROFS: in ext4_decode_error()
849 if (!sb || (EXT4_SB(sb)->s_journal && in ext4_decode_error()
850 EXT4_SB(sb)->s_journal->j_flags & JBD2_ABORT)) in ext4_decode_error()
861 if (snprintf(nbuf, 16, "error %d", -errno) >= 0) in ext4_decode_error()
885 if (errno == -EROFS && journal_current_handle() == NULL && sb_rdonly(sb)) in __ext4_std_error()
890 printk(KERN_CRIT "EXT4-fs error (device %s) in %s:%d: %s\n", in __ext4_std_error()
891 sb->s_id, function, line, errstr); in __ext4_std_error()
894 ext4_handle_error(sb, false, -errno, 0, 0, function, line); in __ext4_std_error()
903 atomic_inc(&EXT4_SB(sb)->s_msg_count); in __ext4_msg()
904 if (!___ratelimit(&(EXT4_SB(sb)->s_msg_ratelimit_state), "EXT4-fs")) in __ext4_msg()
910 printk("%sEXT4-fs (%s): %pV\n", prefix, sb->s_id, &vaf); in __ext4_msg()
916 atomic_inc(&EXT4_SB(sb)->s_warning_count); in ext4_warning_ratelimit()
917 return ___ratelimit(&(EXT4_SB(sb)->s_warning_ratelimit_state), in ext4_warning_ratelimit()
918 "EXT4-fs warning"); in ext4_warning_ratelimit()
933 printk(KERN_WARNING "EXT4-fs warning (device %s): %s:%d: %pV\n", in __ext4_warning()
934 sb->s_id, function, line, &vaf); in __ext4_warning()
944 if (!ext4_warning_ratelimit(inode->i_sb)) in __ext4_warning_inode()
950 printk(KERN_WARNING "EXT4-fs warning (device %s): %s:%d: " in __ext4_warning_inode()
951 "inode #%lu: comm %s: %pV\n", inode->i_sb->s_id, in __ext4_warning_inode()
952 function, line, inode->i_ino, current->comm, &vaf); in __ext4_warning_inode()
974 printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u, ", in __ext4_grp_locked_error()
975 sb->s_id, function, line, grp); in __ext4_grp_locked_error()
988 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in __ext4_grp_locked_error()
989 if (!bdev_read_only(sb->s_bdev)) { in __ext4_grp_locked_error()
992 schedule_work(&EXT4_SB(sb)->s_error_work); in __ext4_grp_locked_error()
1026 &grp->bb_state); in ext4_mark_group_bitmap_corrupted()
1028 percpu_counter_sub(&sbi->s_freeclusters_counter, in ext4_mark_group_bitmap_corrupted()
1029 grp->bb_free); in ext4_mark_group_bitmap_corrupted()
1034 &grp->bb_state); in ext4_mark_group_bitmap_corrupted()
1039 percpu_counter_sub(&sbi->s_freeinodes_counter, in ext4_mark_group_bitmap_corrupted()
1047 struct ext4_super_block *es = EXT4_SB(sb)->s_es; in ext4_update_dynamic_rev() local
1049 if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV) in ext4_update_dynamic_rev()
1057 es->s_first_ino = cpu_to_le32(EXT4_GOOD_OLD_FIRST_INO); in ext4_update_dynamic_rev()
1058 es->s_inode_size = cpu_to_le16(EXT4_GOOD_OLD_INODE_SIZE); in ext4_update_dynamic_rev()
1059 es->s_rev_level = cpu_to_le32(EXT4_DYNAMIC_REV); in ext4_update_dynamic_rev()
1060 /* leave es->s_feature_*compat flags alone */ in ext4_update_dynamic_rev()
1061 /* es->s_uuid will be set by e2fsck if empty */ in ext4_update_dynamic_rev()
1084 "failed to open journal device unknown-block(%u,%u) %ld", in ext4_blkdev_get()
1100 bdev = sbi->s_journal_bdev; in ext4_blkdev_remove()
1104 * floating about in memory - the physical journal device may in ext4_blkdev_remove()
1105 * hotswapped, and it breaks the `ro-after' testing code. in ext4_blkdev_remove()
1109 sbi->s_journal_bdev = NULL; in ext4_blkdev_remove()
1115 return &list_entry(l, struct ext4_inode_info, i_orphan)->vfs_inode; in orphan_list_entry()
1123 le32_to_cpu(sbi->s_es->s_last_orphan)); in dump_orphan_list()
1126 list_for_each(l, &sbi->s_orphan) { in dump_orphan_list()
1130 inode->i_sb->s_id, inode->i_ino, inode, in dump_orphan_list()
1131 inode->i_mode, inode->i_nlink, in dump_orphan_list()
1156 return rcu_dereference_protected(sbi->s_qf_names[type], in get_qf_name()
1157 lockdep_is_held(&sb->s_umount)); in get_qf_name()
1168 struct ext4_super_block *es = sbi->s_es; in ext4_put_super() local
1177 * path which could have sbi->s_journal->j_task as NULL in ext4_put_super()
1178 * Unregister sysfs before flush sbi->s_error_work. in ext4_put_super()
1188 flush_work(&sbi->s_error_work); in ext4_put_super()
1189 destroy_workqueue(sbi->rsv_conversion_wq); in ext4_put_super()
1191 if (sbi->s_journal) { in ext4_put_super()
1192 aborted = is_journal_aborted(sbi->s_journal); in ext4_put_super()
1193 err = jbd2_journal_destroy(sbi->s_journal); in ext4_put_super()
1194 sbi->s_journal = NULL; in ext4_put_super()
1196 ext4_abort(sb, -err, "Couldn't clean up the journal"); in ext4_put_super()
1201 del_timer_sync(&sbi->s_err_report); in ext4_put_super()
1208 es->s_state = cpu_to_le16(sbi->s_mount_state); in ext4_put_super()
1214 group_desc = rcu_dereference(sbi->s_group_desc); in ext4_put_super()
1215 for (i = 0; i < sbi->s_gdb_count; i++) in ext4_put_super()
1218 flex_groups = rcu_dereference(sbi->s_flex_groups); in ext4_put_super()
1220 for (i = 0; i < sbi->s_flex_groups_allocated; i++) in ext4_put_super()
1225 percpu_counter_destroy(&sbi->s_freeclusters_counter); in ext4_put_super()
1226 percpu_counter_destroy(&sbi->s_freeinodes_counter); in ext4_put_super()
1227 percpu_counter_destroy(&sbi->s_dirs_counter); in ext4_put_super()
1228 percpu_counter_destroy(&sbi->s_dirtyclusters_counter); in ext4_put_super()
1229 percpu_counter_destroy(&sbi->s_sra_exceeded_retry_limit); in ext4_put_super()
1230 percpu_free_rwsem(&sbi->s_writepages_rwsem); in ext4_put_super()
1236 /* Debugging code just in case the in-memory inode orphan list in ext4_put_super()
1237 * isn't empty. The on-disk one can be non-empty if we've in ext4_put_super()
1239 * in-memory list had better be clean by this point. */ in ext4_put_super()
1240 if (!list_empty(&sbi->s_orphan)) in ext4_put_super()
1242 J_ASSERT(list_empty(&sbi->s_orphan)); in ext4_put_super()
1244 sync_blockdev(sb->s_bdev); in ext4_put_super()
1245 invalidate_bdev(sb->s_bdev); in ext4_put_super()
1246 if (sbi->s_journal_bdev && sbi->s_journal_bdev != sb->s_bdev) { in ext4_put_super()
1247 sync_blockdev(sbi->s_journal_bdev); in ext4_put_super()
1251 ext4_xattr_destroy_cache(sbi->s_ea_inode_cache); in ext4_put_super()
1252 sbi->s_ea_inode_cache = NULL; in ext4_put_super()
1254 ext4_xattr_destroy_cache(sbi->s_ea_block_cache); in ext4_put_super()
1255 sbi->s_ea_block_cache = NULL; in ext4_put_super()
1259 brelse(sbi->s_sbh); in ext4_put_super()
1260 sb->s_fs_info = NULL; in ext4_put_super()
1265 kobject_put(&sbi->s_kobj); in ext4_put_super()
1266 wait_for_completion(&sbi->s_kobj_unregister); in ext4_put_super()
1267 if (sbi->s_chksum_driver) in ext4_put_super()
1268 crypto_free_shash(sbi->s_chksum_driver); in ext4_put_super()
1269 kfree(sbi->s_blockgroup_lock); in ext4_put_super()
1270 fs_put_dax(sbi->s_daxdev); in ext4_put_super()
1271 fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy); in ext4_put_super()
1273 utf8_unload(sb->s_encoding); in ext4_put_super()
1291 inode_set_iversion(&ei->vfs_inode, 1); in ext4_alloc_inode()
1292 ei->i_flags = 0; in ext4_alloc_inode()
1293 spin_lock_init(&ei->i_raw_lock); in ext4_alloc_inode()
1294 INIT_LIST_HEAD(&ei->i_prealloc_list); in ext4_alloc_inode()
1295 atomic_set(&ei->i_prealloc_active, 0); in ext4_alloc_inode()
1296 spin_lock_init(&ei->i_prealloc_lock); in ext4_alloc_inode()
1297 ext4_es_init_tree(&ei->i_es_tree); in ext4_alloc_inode()
1298 rwlock_init(&ei->i_es_lock); in ext4_alloc_inode()
1299 INIT_LIST_HEAD(&ei->i_es_list); in ext4_alloc_inode()
1300 ei->i_es_all_nr = 0; in ext4_alloc_inode()
1301 ei->i_es_shk_nr = 0; in ext4_alloc_inode()
1302 ei->i_es_shrink_lblk = 0; in ext4_alloc_inode()
1303 ei->i_reserved_data_blocks = 0; in ext4_alloc_inode()
1304 spin_lock_init(&(ei->i_block_reservation_lock)); in ext4_alloc_inode()
1305 ext4_init_pending_tree(&ei->i_pending_tree); in ext4_alloc_inode()
1307 ei->i_reserved_quota = 0; in ext4_alloc_inode()
1308 memset(&ei->i_dquot, 0, sizeof(ei->i_dquot)); in ext4_alloc_inode()
1310 ei->jinode = NULL; in ext4_alloc_inode()
1311 INIT_LIST_HEAD(&ei->i_rsv_conversion_list); in ext4_alloc_inode()
1312 spin_lock_init(&ei->i_completed_io_lock); in ext4_alloc_inode()
1313 ei->i_sync_tid = 0; in ext4_alloc_inode()
1314 ei->i_datasync_tid = 0; in ext4_alloc_inode()
1315 atomic_set(&ei->i_unwritten, 0); in ext4_alloc_inode()
1316 INIT_WORK(&ei->i_rsv_conversion_work, ext4_end_io_rsv_work); in ext4_alloc_inode()
1317 ext4_fc_init_inode(&ei->vfs_inode); in ext4_alloc_inode()
1318 mutex_init(&ei->i_fc_lock); in ext4_alloc_inode()
1319 return &ei->vfs_inode; in ext4_alloc_inode()
1336 if (!list_empty(&(EXT4_I(inode)->i_fc_list))) { in ext4_free_in_core_inode()
1338 __func__, inode->i_ino); in ext4_free_in_core_inode()
1345 if (!list_empty(&(EXT4_I(inode)->i_orphan))) { in ext4_destroy_inode()
1346 ext4_msg(inode->i_sb, KERN_ERR, in ext4_destroy_inode()
1348 inode->i_ino, EXT4_I(inode)); in ext4_destroy_inode()
1355 if (EXT4_I(inode)->i_reserved_data_blocks) in ext4_destroy_inode()
1356 ext4_msg(inode->i_sb, KERN_ERR, in ext4_destroy_inode()
1358 inode->i_ino, EXT4_I(inode), in ext4_destroy_inode()
1359 EXT4_I(inode)->i_reserved_data_blocks); in ext4_destroy_inode()
1366 INIT_LIST_HEAD(&ei->i_orphan); in init_once()
1367 init_rwsem(&ei->xattr_sem); in init_once()
1368 init_rwsem(&ei->i_data_sem); in init_once()
1369 init_rwsem(&ei->i_mmap_sem); in init_once()
1370 inode_init_once(&ei->vfs_inode); in init_once()
1371 ext4_fc_init_inode(&ei->vfs_inode); in init_once()
1384 return -ENOMEM; in init_inodecache()
1406 if (EXT4_I(inode)->jinode) { in ext4_clear_inode()
1408 EXT4_I(inode)->jinode); in ext4_clear_inode()
1409 jbd2_free_inode(EXT4_I(inode)->jinode); in ext4_clear_inode()
1410 EXT4_I(inode)->jinode = NULL; in ext4_clear_inode()
1428 if (generation && inode->i_generation != generation) { in ext4_nfs_get_inode()
1430 return ERR_PTR(-ESTALE); in ext4_nfs_get_inode()
1479 if (inode->i_ino == EXT4_ROOT_INO) in ext4_set_context()
1480 return -EPERM; in ext4_set_context()
1483 return -EINVAL; in ext4_set_context()
1486 return -EOPNOTSUPP; in ext4_set_context()
1510 * Update inode->i_flags - S_ENCRYPTED will be enabled, in ext4_set_context()
1537 * Update inode->i_flags - S_ENCRYPTED will be enabled, in ext4_set_context()
1547 if (res == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) in ext4_set_context()
1556 return EXT4_SB(sb)->s_dummy_enc_policy.policy; in ext4_get_dummy_policy()
1567 *ino_bits_ret = 8 * sizeof(EXT4_SB(sb)->s_es->s_inodes_count); in ext4_get_ino_and_lblk_bits()
1605 return EXT4_I(inode)->i_dquot; in ext4_get_dquots()
1705 {Opt_err_ro, "errors=remount-ro"},
1808 printk(KERN_ERR "EXT4-fs: Invalid sb specification: %s\n", in get_sb_block()
1822 "Contact linux-ext4@vger.kernel.org if you think we should keep it.\n";
1829 int ret = -1; in set_qf_name()
1835 return -1; in set_qf_name()
1846 return -1; in set_qf_name()
1862 rcu_assign_pointer(sbi->s_qf_names[qtype], qname); in set_qf_name()
1879 return -1; in clear_qf_name()
1881 rcu_assign_pointer(sbi->s_qf_names[qtype], NULL); in clear_qf_name()
2026 static int ext4_sb_read_encoding(const struct ext4_super_block *es, in ext4_sb_read_encoding() argument
2030 __u16 magic = le16_to_cpu(es->s_encoding); in ext4_sb_read_encoding()
2038 return -EINVAL; in ext4_sb_read_encoding()
2041 *flags = le16_to_cpu(es->s_encoding_flags); in ext4_sb_read_encoding()
2059 return -1; in ext4_set_test_dummy_encryption()
2068 if (is_remount && !sbi->s_dummy_enc_policy.policy) { in ext4_set_test_dummy_encryption()
2071 return -1; in ext4_set_test_dummy_encryption()
2073 err = fscrypt_set_test_dummy_encryption(sb, arg->from, in ext4_set_test_dummy_encryption()
2074 &sbi->s_dummy_enc_policy); in ext4_set_test_dummy_encryption()
2076 if (err == -EEXIST) in ext4_set_test_dummy_encryption()
2079 else if (err == -EINVAL) in ext4_set_test_dummy_encryption()
2086 return -1; in ext4_set_test_dummy_encryption()
2093 return -1; in ext4_set_test_dummy_encryption()
2132 sb->s_flags |= SB_I_VERSION; in handle_mount_opt()
2135 sb->s_flags |= SB_LAZYTIME; in handle_mount_opt()
2138 sb->s_flags &= ~SB_LAZYTIME; in handle_mount_opt()
2142 sb->s_flags |= SB_INLINECRYPT; in handle_mount_opt()
2149 for (m = ext4_mount_opts; m->token != Opt_err; m++) in handle_mount_opt()
2150 if (token == m->token) in handle_mount_opt()
2153 if (m->token == Opt_err) { in handle_mount_opt()
2156 return -1; in handle_mount_opt()
2159 if ((m->flags & MOPT_NO_EXT2) && IS_EXT2_SB(sb)) { in handle_mount_opt()
2162 return -1; in handle_mount_opt()
2164 if ((m->flags & MOPT_NO_EXT3) && IS_EXT3_SB(sb)) { in handle_mount_opt()
2167 return -1; in handle_mount_opt()
2170 if (args->from && !(m->flags & MOPT_STRING) && match_int(args, &arg)) in handle_mount_opt()
2171 return -1; in handle_mount_opt()
2172 if (args->from && (m->flags & MOPT_GTE0) && (arg < 0)) in handle_mount_opt()
2173 return -1; in handle_mount_opt()
2174 if (m->flags & MOPT_EXPLICIT) { in handle_mount_opt()
2175 if (m->mount_opt & EXT4_MOUNT_DELALLOC) { in handle_mount_opt()
2177 } else if (m->mount_opt & EXT4_MOUNT_JOURNAL_CHECKSUM) { in handle_mount_opt()
2180 return -1; in handle_mount_opt()
2182 if (m->flags & MOPT_CLEAR_ERR) in handle_mount_opt()
2187 return -1; in handle_mount_opt()
2190 if (m->flags & MOPT_NOSUPPORT) { in handle_mount_opt()
2200 return -1; in handle_mount_opt()
2202 sbi->s_commit_interval = HZ * arg; in handle_mount_opt()
2206 (arg > (sbi->s_inode_size - EXT4_GOOD_OLD_INODE_SIZE))) { in handle_mount_opt()
2209 return -1; in handle_mount_opt()
2211 sbi->s_want_extra_isize = arg; in handle_mount_opt()
2213 sbi->s_max_batch_time = arg; in handle_mount_opt()
2215 sbi->s_min_batch_time = arg; in handle_mount_opt()
2219 "EXT4-fs: inode_readahead_blks must be " in handle_mount_opt()
2221 return -1; in handle_mount_opt()
2223 sbi->s_inode_readahead_blks = arg; in handle_mount_opt()
2226 if (!args->from) in handle_mount_opt()
2228 sbi->s_li_wait_mult = arg; in handle_mount_opt()
2230 sbi->s_max_dir_size_kb = arg; in handle_mount_opt()
2233 sbi->s_fc_debug_max_replay = arg; in handle_mount_opt()
2236 sbi->s_stripe = arg; in handle_mount_opt()
2241 return -1; in handle_mount_opt()
2243 sbi->s_resuid = uid; in handle_mount_opt()
2248 return -1; in handle_mount_opt()
2250 sbi->s_resgid = gid; in handle_mount_opt()
2255 return -1; in handle_mount_opt()
2267 return -1; in handle_mount_opt()
2273 return -1; in handle_mount_opt()
2281 return -1; in handle_mount_opt()
2285 if (!S_ISBLK(journal_inode->i_mode)) { in handle_mount_opt()
2290 return -1; in handle_mount_opt()
2293 *journal_devnum = new_encode_dev(journal_inode->i_rdev); in handle_mount_opt()
2299 " (must be 0-7)"); in handle_mount_opt()
2300 return -1; in handle_mount_opt()
2307 } else if (m->flags & MOPT_DATAJ) { in handle_mount_opt()
2309 if (!sbi->s_journal) in handle_mount_opt()
2311 else if (test_opt(sb, DATA_FLAGS) != m->mount_opt) { in handle_mount_opt()
2314 return -1; in handle_mount_opt()
2318 sbi->s_mount_opt |= m->mount_opt; in handle_mount_opt()
2321 } else if (m->flags & MOPT_QFMT) { in handle_mount_opt()
2323 sbi->s_jquota_fmt != m->mount_opt) { in handle_mount_opt()
2326 return -1; in handle_mount_opt()
2334 sbi->s_jquota_fmt = m->mount_opt; in handle_mount_opt()
2343 (!(sbi->s_mount_opt & EXT4_MOUNT_DAX_ALWAYS) || in handle_mount_opt()
2344 (sbi->s_mount_opt2 & EXT4_MOUNT2_DAX_NEVER))) { in handle_mount_opt()
2348 return -1; in handle_mount_opt()
2355 return -1; in handle_mount_opt()
2359 sbi->s_mount_opt |= EXT4_MOUNT_DAX_ALWAYS; in handle_mount_opt()
2360 sbi->s_mount_opt2 &= ~EXT4_MOUNT2_DAX_NEVER; in handle_mount_opt()
2364 (!(sbi->s_mount_opt2 & EXT4_MOUNT2_DAX_NEVER) || in handle_mount_opt()
2365 (sbi->s_mount_opt & EXT4_MOUNT_DAX_ALWAYS))) in handle_mount_opt()
2367 sbi->s_mount_opt2 |= EXT4_MOUNT2_DAX_NEVER; in handle_mount_opt()
2368 sbi->s_mount_opt &= ~EXT4_MOUNT_DAX_ALWAYS; in handle_mount_opt()
2372 ((sbi->s_mount_opt & EXT4_MOUNT_DAX_ALWAYS) || in handle_mount_opt()
2373 (sbi->s_mount_opt2 & EXT4_MOUNT2_DAX_NEVER) || in handle_mount_opt()
2374 !(sbi->s_mount_opt2 & EXT4_MOUNT2_DAX_INODE))) in handle_mount_opt()
2376 sbi->s_mount_opt &= ~EXT4_MOUNT_DAX_ALWAYS; in handle_mount_opt()
2377 sbi->s_mount_opt2 &= ~EXT4_MOUNT2_DAX_NEVER; in handle_mount_opt()
2379 sbi->s_mount_opt2 |= EXT4_MOUNT2_DAX_INODE; in handle_mount_opt()
2384 sbi->s_mount_opt2 |= EXT4_MOUNT2_DAX_NEVER; in handle_mount_opt()
2385 sbi->s_mount_opt &= ~EXT4_MOUNT_DAX_ALWAYS; in handle_mount_opt()
2386 return -1; in handle_mount_opt()
2389 sbi->s_mount_opt |= m->mount_opt; in handle_mount_opt()
2391 sbi->s_mount_opt &= ~m->mount_opt; in handle_mount_opt()
2393 if (!args->from) in handle_mount_opt()
2395 if (m->flags & MOPT_CLEAR) in handle_mount_opt()
2397 else if (unlikely(!(m->flags & MOPT_SET))) { in handle_mount_opt()
2401 return -1; in handle_mount_opt()
2403 if (m->flags & MOPT_2) { in handle_mount_opt()
2405 sbi->s_mount_opt2 |= m->mount_opt; in handle_mount_opt()
2407 sbi->s_mount_opt2 &= ~m->mount_opt; in handle_mount_opt()
2410 sbi->s_mount_opt |= m->mount_opt; in handle_mount_opt()
2412 sbi->s_mount_opt &= ~m->mount_opt; in handle_mount_opt()
2452 "Cannot enable project quota enforcement."); in parse_options()
2470 if (!sbi->s_jquota_fmt) { in parse_options()
2479 BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size); in parse_options()
2495 if (sbi->s_jquota_fmt) { in ext4_show_quota_options()
2498 switch (sbi->s_jquota_fmt) { in ext4_show_quota_options()
2513 usr_qf_name = rcu_dereference(sbi->s_qf_names[USRQUOTA]); in ext4_show_quota_options()
2514 grp_qf_name = rcu_dereference(sbi->s_qf_names[GRPQUOTA]); in ext4_show_quota_options()
2527 for (t = tokens; t->token != Opt_err; t++) in token2str()
2528 if (t->token == token && !strchr(t->pattern, '=')) in token2str()
2530 return t->pattern; in token2str()
2535 * - it's set to a non-default value OR
2536 * - if the per-sb default is different from the global default
2542 struct ext4_super_block *es = sbi->s_es; in _ext4_show_options() local
2543 int def_errors, def_mount_opt = sbi->s_def_mount_opt; in _ext4_show_options()
2550 if (sbi->s_sb_block != 1) in _ext4_show_options()
2551 SEQ_OPTS_PRINT("sb=%llu", sbi->s_sb_block); in _ext4_show_options()
2553 for (m = ext4_mount_opts; m->token != Opt_err; m++) { in _ext4_show_options()
2554 int want_set = m->flags & MOPT_SET; in _ext4_show_options()
2555 if (((m->flags & (MOPT_SET|MOPT_CLEAR)) == 0) || in _ext4_show_options()
2556 (m->flags & MOPT_CLEAR_ERR) || m->flags & MOPT_SKIP) in _ext4_show_options()
2558 if (!nodefs && !(m->mount_opt & (sbi->s_mount_opt ^ def_mount_opt))) in _ext4_show_options()
2561 (sbi->s_mount_opt & m->mount_opt) != m->mount_opt) || in _ext4_show_options()
2562 (!want_set && (sbi->s_mount_opt & m->mount_opt))) in _ext4_show_options()
2564 SEQ_OPTS_PRINT("%s", token2str(m->token)); in _ext4_show_options()
2567 if (nodefs || !uid_eq(sbi->s_resuid, make_kuid(&init_user_ns, EXT4_DEF_RESUID)) || in _ext4_show_options()
2568 le16_to_cpu(es->s_def_resuid) != EXT4_DEF_RESUID) in _ext4_show_options()
2570 from_kuid_munged(&init_user_ns, sbi->s_resuid)); in _ext4_show_options()
2571 if (nodefs || !gid_eq(sbi->s_resgid, make_kgid(&init_user_ns, EXT4_DEF_RESGID)) || in _ext4_show_options()
2572 le16_to_cpu(es->s_def_resgid) != EXT4_DEF_RESGID) in _ext4_show_options()
2574 from_kgid_munged(&init_user_ns, sbi->s_resgid)); in _ext4_show_options()
2575 def_errors = nodefs ? -1 : le16_to_cpu(es->s_errors); in _ext4_show_options()
2577 SEQ_OPTS_PUTS("errors=remount-ro"); in _ext4_show_options()
2582 if (nodefs || sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) in _ext4_show_options()
2583 SEQ_OPTS_PRINT("commit=%lu", sbi->s_commit_interval / HZ); in _ext4_show_options()
2584 if (nodefs || sbi->s_min_batch_time != EXT4_DEF_MIN_BATCH_TIME) in _ext4_show_options()
2585 SEQ_OPTS_PRINT("min_batch_time=%u", sbi->s_min_batch_time); in _ext4_show_options()
2586 if (nodefs || sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME) in _ext4_show_options()
2587 SEQ_OPTS_PRINT("max_batch_time=%u", sbi->s_max_batch_time); in _ext4_show_options()
2588 if (sb->s_flags & SB_I_VERSION) in _ext4_show_options()
2590 if (nodefs || sbi->s_stripe) in _ext4_show_options()
2591 SEQ_OPTS_PRINT("stripe=%lu", sbi->s_stripe); in _ext4_show_options()
2593 (sbi->s_mount_opt ^ def_mount_opt)) { in _ext4_show_options()
2602 sbi->s_inode_readahead_blks != EXT4_DEF_INODE_READAHEAD_BLKS) in _ext4_show_options()
2604 sbi->s_inode_readahead_blks); in _ext4_show_options()
2607 (sbi->s_li_wait_mult != EXT4_DEF_LI_WAIT_MULT))) in _ext4_show_options()
2608 SEQ_OPTS_PRINT("init_itable=%u", sbi->s_li_wait_mult); in _ext4_show_options()
2609 if (nodefs || sbi->s_max_dir_size_kb) in _ext4_show_options()
2610 SEQ_OPTS_PRINT("max_dir_size_kb=%u", sbi->s_max_dir_size_kb); in _ext4_show_options()
2616 if (sb->s_flags & SB_INLINECRYPT) in _ext4_show_options()
2635 return _ext4_show_options(seq, root->d_sb, 0); in ext4_show_options()
2640 struct super_block *sb = seq->private; in ext4_seq_options_show()
2649 static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es, in ext4_setup_super() argument
2655 if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) { in ext4_setup_super()
2657 "forcing read-only mode"); in ext4_setup_super()
2658 err = -EROFS; in ext4_setup_super()
2663 if (!(sbi->s_mount_state & EXT4_VALID_FS)) in ext4_setup_super()
2666 else if (sbi->s_mount_state & EXT4_ERROR_FS) in ext4_setup_super()
2670 else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 && in ext4_setup_super()
2671 le16_to_cpu(es->s_mnt_count) >= in ext4_setup_super()
2672 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count)) in ext4_setup_super()
2676 else if (le32_to_cpu(es->s_checkinterval) && in ext4_setup_super()
2677 (ext4_get_tstamp(es, s_lastcheck) + in ext4_setup_super()
2678 le32_to_cpu(es->s_checkinterval) <= ktime_get_real_seconds())) in ext4_setup_super()
2682 if (!sbi->s_journal) in ext4_setup_super()
2683 es->s_state &= cpu_to_le16(~EXT4_VALID_FS); in ext4_setup_super()
2684 if (!(__s16) le16_to_cpu(es->s_max_mnt_count)) in ext4_setup_super()
2685 es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT); in ext4_setup_super()
2686 le16_add_cpu(&es->s_mnt_count, 1); in ext4_setup_super()
2687 ext4_update_tstamp(es, s_mtime); in ext4_setup_super()
2688 if (sbi->s_journal) in ext4_setup_super()
2696 sb->s_blocksize, in ext4_setup_super()
2697 sbi->s_groups_count, in ext4_setup_super()
2700 sbi->s_mount_opt, sbi->s_mount_opt2); in ext4_setup_super()
2712 if (!sbi->s_log_groups_per_flex) in ext4_alloc_flex_bg_array()
2715 size = ext4_flex_group(sbi, ngroup - 1) + 1; in ext4_alloc_flex_bg_array()
2716 if (size <= sbi->s_flex_groups_allocated) in ext4_alloc_flex_bg_array()
2720 sizeof(*sbi->s_flex_groups)), GFP_KERNEL); in ext4_alloc_flex_bg_array()
2724 return -ENOMEM; in ext4_alloc_flex_bg_array()
2726 for (i = sbi->s_flex_groups_allocated; i < size; i++) { in ext4_alloc_flex_bg_array()
2731 for (j = sbi->s_flex_groups_allocated; j < i; j++) in ext4_alloc_flex_bg_array()
2736 return -ENOMEM; in ext4_alloc_flex_bg_array()
2740 old_groups = rcu_dereference(sbi->s_flex_groups); in ext4_alloc_flex_bg_array()
2743 (sbi->s_flex_groups_allocated * in ext4_alloc_flex_bg_array()
2746 rcu_assign_pointer(sbi->s_flex_groups, new_groups); in ext4_alloc_flex_bg_array()
2747 sbi->s_flex_groups_allocated = size; in ext4_alloc_flex_bg_array()
2761 sbi->s_log_groups_per_flex = sbi->s_es->s_log_groups_per_flex; in ext4_fill_flex_info()
2762 if (sbi->s_log_groups_per_flex < 1 || sbi->s_log_groups_per_flex > 31) { in ext4_fill_flex_info()
2763 sbi->s_log_groups_per_flex = 0; in ext4_fill_flex_info()
2767 err = ext4_alloc_flex_bg_array(sb, sbi->s_groups_count); in ext4_fill_flex_info()
2771 for (i = 0; i < sbi->s_groups_count; i++) { in ext4_fill_flex_info()
2776 atomic_add(ext4_free_inodes_count(sb, gdp), &fg->free_inodes); in ext4_fill_flex_info()
2778 &fg->free_clusters); in ext4_fill_flex_info()
2779 atomic_add(ext4_used_dirs_count(sb, gdp), &fg->used_dirs); in ext4_fill_flex_info()
2795 if (ext4_has_metadata_csum(sbi->s_sb)) { in ext4_group_desc_csum()
2800 csum32 = ext4_chksum(sbi, sbi->s_csum_seed, (__u8 *)&le_group, in ext4_group_desc_csum()
2806 if (offset < sbi->s_desc_size) in ext4_group_desc_csum()
2808 sbi->s_desc_size - offset); in ext4_group_desc_csum()
2818 crc = crc16(~0, sbi->s_es->s_uuid, sizeof(sbi->s_es->s_uuid)); in ext4_group_desc_csum()
2821 offset += sizeof(gdp->bg_checksum); /* skip checksum */ in ext4_group_desc_csum()
2823 if (ext4_has_feature_64bit(sb) && offset < sbi->s_desc_size) in ext4_group_desc_csum()
2825 sbi->s_desc_size - offset); in ext4_group_desc_csum()
2835 (gdp->bg_checksum != ext4_group_desc_csum(sb, block_group, gdp))) in ext4_group_desc_csum_verify()
2846 gdp->bg_checksum = ext4_group_desc_csum(sb, block_group, gdp); in ext4_group_desc_csum_set()
2849 /* Called at mount-time, super-block is locked */
2855 ext4_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block); in ext4_check_descriptors()
2862 ext4_group_t i, grp = sbi->s_groups_count; in ext4_check_descriptors()
2869 for (i = 0; i < sbi->s_groups_count; i++) { in ext4_check_descriptors()
2872 if (i == sbi->s_groups_count - 1 || flexbg_flag) in ext4_check_descriptors()
2873 last_block = ext4_blocks_count(sbi->s_es) - 1; in ext4_check_descriptors()
2876 (EXT4_BLOCKS_PER_GROUP(sb) - 1); in ext4_check_descriptors()
2878 if ((grp == sbi->s_groups_count) && in ext4_check_descriptors()
2879 !(gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED))) in ext4_check_descriptors()
2943 inode_table + sbi->s_itb_per_group - 1 > last_block) { in ext4_check_descriptors()
2954 gdp)), le16_to_cpu(gdp->bg_checksum)); in ext4_check_descriptors()
2969 /* ext4_orphan_cleanup() walks a singly-linked list of inodes (starting at
2972 * inodes at recovery time (only with a read-write filesystem).
2980 * accidentally point at an in-use or already deleted inode. The worst that
2987 struct ext4_super_block *es) in ext4_orphan_cleanup() argument
2989 unsigned int s_flags = sb->s_flags; in ext4_orphan_cleanup()
2995 if (!es->s_last_orphan) { in ext4_orphan_cleanup()
3000 if (bdev_read_only(sb->s_bdev)) { in ext4_orphan_cleanup()
3013 if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) { in ext4_orphan_cleanup()
3015 if (es->s_last_orphan && !(s_flags & SB_RDONLY)) { in ext4_orphan_cleanup()
3018 es->s_last_orphan = 0; in ext4_orphan_cleanup()
3026 sb->s_flags &= ~SB_RDONLY; in ext4_orphan_cleanup()
3030 * Turn on quotas which were not enabled for read-only mounts if in ext4_orphan_cleanup()
3045 if (EXT4_SB(sb)->s_qf_names[i]) { in ext4_orphan_cleanup()
3058 while (es->s_last_orphan) { in ext4_orphan_cleanup()
3065 if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) { in ext4_orphan_cleanup()
3067 es->s_last_orphan = 0; in ext4_orphan_cleanup()
3071 inode = ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan)); in ext4_orphan_cleanup()
3073 es->s_last_orphan = 0; in ext4_orphan_cleanup()
3077 list_add(&EXT4_I(inode)->i_orphan, &EXT4_SB(sb)->s_orphan); in ext4_orphan_cleanup()
3079 if (inode->i_nlink) { in ext4_orphan_cleanup()
3083 __func__, inode->i_ino, inode->i_size); in ext4_orphan_cleanup()
3085 inode->i_ino, inode->i_size); in ext4_orphan_cleanup()
3087 truncate_inode_pages(inode->i_mapping, inode->i_size); in ext4_orphan_cleanup()
3091 * We need to clean up the in-core orphan list in ext4_orphan_cleanup()
3096 ext4_std_error(inode->i_sb, ret); in ext4_orphan_cleanup()
3104 __func__, inode->i_ino); in ext4_orphan_cleanup()
3106 inode->i_ino); in ext4_orphan_cleanup()
3124 if (sb_dqopt(sb)->files[i]) in ext4_orphan_cleanup()
3129 sb->s_flags = s_flags; /* Restore SB_RDONLY status */ in ext4_orphan_cleanup()
3134 * Resulting logical blkno at s_maxbytes must fit in our on-disk
3141 * covering maximum file size must fit into on-disk format containers as
3155 upper_limit = (1LL << 32) - 1; in ext4_max_size()
3158 upper_limit >>= (blkbits - 9); in ext4_max_size()
3163 * 32-bit extent-start container, ee_block. We lower the maxbytes in ext4_max_size()
3167 res = (1LL << 32) - 1; in ext4_max_size()
3170 /* Sanity check against vm- & vfs- imposed limits */ in ext4_max_size()
3178 * Maximal bitmap file size. There is a direct, and {,double-,triple-}indirect
3179 * block limit, and also a limit of (2^48 - 1) 512-byte sectors in i_blocks.
3189 * mapped file such that the file's total number of 512-byte sectors, in ext4_max_bitmap_size()
3190 * including data and all indirect blocks, does not exceed (2^48 - 1). in ext4_max_bitmap_size()
3193 * number of 512-byte sectors of the file. in ext4_max_bitmap_size()
3198 * represents total file blocks in 2^32 512-byte sectors == in ext4_max_bitmap_size()
3201 upper_limit = (1LL << 32) - 1; in ext4_max_bitmap_size()
3204 upper_limit >>= (bits - 9); in ext4_max_bitmap_size()
3213 upper_limit = (1LL << 48) - 1; in ext4_max_bitmap_size()
3220 meta_blocks += 1 + (1LL << (bits-2)); in ext4_max_bitmap_size()
3222 meta_blocks += 1 + (1LL << (bits-2)) + (1LL << (2*(bits-2))); in ext4_max_bitmap_size()
3224 upper_limit -= meta_blocks; in ext4_max_bitmap_size()
3227 res += 1LL << (bits-2); in ext4_max_bitmap_size()
3228 res += 1LL << (2*(bits-2)); in ext4_max_bitmap_size()
3229 res += 1LL << (3*(bits-2)); in ext4_max_bitmap_size()
3247 first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg); in descriptor_loc()
3251 bg = sbi->s_desc_per_block * nr; in descriptor_loc()
3261 if (sb->s_blocksize == 1024 && nr == 0 && in descriptor_loc()
3262 le32_to_cpu(sbi->s_es->s_first_data_block) == 0) in descriptor_loc()
3281 unsigned long stride = le16_to_cpu(sbi->s_es->s_raid_stride); in ext4_get_stripe_size()
3283 le32_to_cpu(sbi->s_es->s_raid_stripe_width); in ext4_get_stripe_size()
3286 if (sbi->s_stripe && sbi->s_stripe <= sbi->s_blocks_per_group) in ext4_get_stripe_size()
3287 ret = sbi->s_stripe; in ext4_get_stripe_size()
3288 else if (stripe_width && stripe_width <= sbi->s_blocks_per_group) in ext4_get_stripe_size()
3290 else if (stride && stride <= sbi->s_blocks_per_group) in ext4_get_stripe_size()
3317 (le32_to_cpu(EXT4_SB(sb)->s_es->s_feature_incompat) & in ext4_feature_set_ok()
3335 ext4_msg(sb, KERN_INFO, "filesystem is read-only"); in ext4_feature_set_ok()
3336 sb->s_flags |= SB_RDONLY; in ext4_feature_set_ok()
3340 /* Check that feature set is OK for a read-write mount */ in ext4_feature_set_ok()
3344 (le32_to_cpu(EXT4_SB(sb)->s_es->s_feature_ro_compat) & in ext4_feature_set_ok()
3373 struct super_block *sb = sbi->s_sb; in print_daily_error_info()
3374 struct ext4_super_block *es = sbi->s_es; in print_daily_error_info() local
3376 if (es->s_error_count) in print_daily_error_info()
3379 le32_to_cpu(es->s_error_count)); in print_daily_error_info()
3380 if (es->s_first_error_time) { in print_daily_error_info()
3381 printk(KERN_NOTICE "EXT4-fs (%s): initial error at time %llu: %.*s:%d", in print_daily_error_info()
3382 sb->s_id, in print_daily_error_info()
3383 ext4_get_tstamp(es, s_first_error_time), in print_daily_error_info()
3384 (int) sizeof(es->s_first_error_func), in print_daily_error_info()
3385 es->s_first_error_func, in print_daily_error_info()
3386 le32_to_cpu(es->s_first_error_line)); in print_daily_error_info()
3387 if (es->s_first_error_ino) in print_daily_error_info()
3389 le32_to_cpu(es->s_first_error_ino)); in print_daily_error_info()
3390 if (es->s_first_error_block) in print_daily_error_info()
3392 le64_to_cpu(es->s_first_error_block)); in print_daily_error_info()
3395 if (es->s_last_error_time) { in print_daily_error_info()
3396 printk(KERN_NOTICE "EXT4-fs (%s): last error at time %llu: %.*s:%d", in print_daily_error_info()
3397 sb->s_id, in print_daily_error_info()
3398 ext4_get_tstamp(es, s_last_error_time), in print_daily_error_info()
3399 (int) sizeof(es->s_last_error_func), in print_daily_error_info()
3400 es->s_last_error_func, in print_daily_error_info()
3401 le32_to_cpu(es->s_last_error_line)); in print_daily_error_info()
3402 if (es->s_last_error_ino) in print_daily_error_info()
3404 le32_to_cpu(es->s_last_error_ino)); in print_daily_error_info()
3405 if (es->s_last_error_block) in print_daily_error_info()
3407 le64_to_cpu(es->s_last_error_block)); in print_daily_error_info()
3410 mod_timer(&sbi->s_err_report, jiffies + 24*60*60*HZ); /* Once a day */ in print_daily_error_info()
3417 struct super_block *sb = elr->lr_super; in ext4_run_li_request()
3418 ext4_group_t ngroups = EXT4_SB(sb)->s_groups_count; in ext4_run_li_request()
3419 ext4_group_t group = elr->lr_next_group; in ext4_run_li_request()
3424 if (elr->lr_mode == EXT4_LI_MODE_PREFETCH_BBITMAP) { in ext4_run_li_request()
3425 elr->lr_next_group = ext4_mb_prefetch(sb, group, in ext4_run_li_request()
3426 EXT4_SB(sb)->s_mb_prefetch, &prefetch_ios); in ext4_run_li_request()
3428 ext4_mb_prefetch_fini(sb, elr->lr_next_group, in ext4_run_li_request()
3430 trace_ext4_prefetch_bitmaps(sb, group, elr->lr_next_group, in ext4_run_li_request()
3432 if (group >= elr->lr_next_group) { in ext4_run_li_request()
3434 if (elr->lr_first_not_zeroed != ngroups && in ext4_run_li_request()
3436 elr->lr_next_group = elr->lr_first_not_zeroed; in ext4_run_li_request()
3437 elr->lr_mode = EXT4_LI_MODE_ITABLE; in ext4_run_li_request()
3451 if (!(gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED))) in ext4_run_li_request()
3461 elr->lr_timeout ? 0 : 1); in ext4_run_li_request()
3463 if (elr->lr_timeout == 0) { in ext4_run_li_request()
3464 elr->lr_timeout = nsecs_to_jiffies((ktime_get_real_ns() - start_time) * in ext4_run_li_request()
3465 EXT4_SB(elr->lr_super)->s_li_wait_mult); in ext4_run_li_request()
3467 elr->lr_next_sched = jiffies + elr->lr_timeout; in ext4_run_li_request()
3468 elr->lr_next_group = group + 1; in ext4_run_li_request()
3482 list_del(&elr->lr_request); in ext4_remove_li_request()
3483 EXT4_SB(elr->lr_super)->s_li_request = NULL; in ext4_remove_li_request()
3495 mutex_lock(&ext4_li_info->li_list_mtx); in ext4_unregister_li_request()
3496 ext4_remove_li_request(EXT4_SB(sb)->s_li_request); in ext4_unregister_li_request()
3497 mutex_unlock(&ext4_li_info->li_list_mtx); in ext4_unregister_li_request()
3526 mutex_lock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3527 if (list_empty(&eli->li_request_list)) { in ext4_lazyinit_thread()
3528 mutex_unlock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3531 list_for_each_safe(pos, n, &eli->li_request_list) { in ext4_lazyinit_thread()
3537 if (time_before(jiffies, elr->lr_next_sched)) { in ext4_lazyinit_thread()
3538 if (time_before(elr->lr_next_sched, next_wakeup)) in ext4_lazyinit_thread()
3539 next_wakeup = elr->lr_next_sched; in ext4_lazyinit_thread()
3542 if (down_read_trylock(&elr->lr_super->s_umount)) { in ext4_lazyinit_thread()
3543 if (sb_start_write_trylock(elr->lr_super)) { in ext4_lazyinit_thread()
3546 * We hold sb->s_umount, sb can not in ext4_lazyinit_thread()
3550 mutex_unlock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3552 sb_end_write(elr->lr_super); in ext4_lazyinit_thread()
3553 mutex_lock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3554 n = pos->next; in ext4_lazyinit_thread()
3556 up_read((&elr->lr_super->s_umount)); in ext4_lazyinit_thread()
3564 elr->lr_next_sched = jiffies + in ext4_lazyinit_thread()
3568 if (time_before(elr->lr_next_sched, next_wakeup)) in ext4_lazyinit_thread()
3569 next_wakeup = elr->lr_next_sched; in ext4_lazyinit_thread()
3571 mutex_unlock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3582 schedule_timeout_interruptible(next_wakeup - cur); in ext4_lazyinit_thread()
3600 mutex_lock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3601 if (!list_empty(&eli->li_request_list)) { in ext4_lazyinit_thread()
3602 mutex_unlock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3606 mutex_unlock(&eli->li_list_mtx); in ext4_lazyinit_thread()
3619 mutex_lock(&ext4_li_info->li_list_mtx); in ext4_clear_request_list()
3620 list_for_each_safe(pos, n, &ext4_li_info->li_request_list) { in ext4_clear_request_list()
3625 mutex_unlock(&ext4_li_info->li_list_mtx); in ext4_clear_request_list()
3637 printk(KERN_CRIT "EXT4-fs: error %d creating inode table " in ext4_run_lazyinit_thread()
3642 ext4_li_info->li_state |= EXT4_LAZYINIT_RUNNING; in ext4_run_lazyinit_thread()
3654 ext4_group_t group, ngroups = EXT4_SB(sb)->s_groups_count; in ext4_has_uninit_itable()
3665 if (!(gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED))) in ext4_has_uninit_itable()
3678 return -ENOMEM; in ext4_li_info_new()
3680 INIT_LIST_HEAD(&eli->li_request_list); in ext4_li_info_new()
3681 mutex_init(&eli->li_list_mtx); in ext4_li_info_new()
3683 eli->li_state |= EXT4_LAZYINIT_QUIT; in ext4_li_info_new()
3699 elr->lr_super = sb; in ext4_li_request_new()
3700 elr->lr_first_not_zeroed = start; in ext4_li_request_new()
3702 elr->lr_mode = EXT4_LI_MODE_PREFETCH_BBITMAP; in ext4_li_request_new()
3704 elr->lr_mode = EXT4_LI_MODE_ITABLE; in ext4_li_request_new()
3705 elr->lr_next_group = start; in ext4_li_request_new()
3713 elr->lr_next_sched = jiffies + (prandom_u32() % in ext4_li_request_new()
3723 ext4_group_t ngroups = sbi->s_groups_count; in ext4_register_li_request()
3727 if (sbi->s_li_request != NULL) { in ext4_register_li_request()
3732 sbi->s_li_request->lr_timeout = 0; in ext4_register_li_request()
3743 ret = -ENOMEM; in ext4_register_li_request()
3753 mutex_lock(&ext4_li_info->li_list_mtx); in ext4_register_li_request()
3754 list_add(&elr->lr_request, &ext4_li_info->li_request_list); in ext4_register_li_request()
3755 mutex_unlock(&ext4_li_info->li_list_mtx); in ext4_register_li_request()
3757 sbi->s_li_request = elr; in ext4_register_li_request()
3765 if (!(ext4_li_info->li_state & EXT4_LAZYINIT_RUNNING)) { in ext4_register_li_request()
3809 jbd2_journal_clear_features(sbi->s_journal, in set_journal_csum_feature_set()
3814 ret = jbd2_journal_set_features(sbi->s_journal, in set_journal_csum_feature_set()
3819 ret = jbd2_journal_set_features(sbi->s_journal, in set_journal_csum_feature_set()
3822 jbd2_journal_clear_features(sbi->s_journal, 0, 0, in set_journal_csum_feature_set()
3825 jbd2_journal_clear_features(sbi->s_journal, 0, 0, in set_journal_csum_feature_set()
3840 * older file systems --- and if we come across with a bigalloc file
3842 * correct especially for very large cluster sizes --- but for newer
3845 * present (even for non-bigalloc file systems), we will use it.
3859 (has_super ? le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0) + in count_overhead()
3860 sbi->s_itb_per_group + 2); in count_overhead()
3862 first_block = le32_to_cpu(sbi->s_es->s_first_data_block) + in count_overhead()
3864 last_block = first_block + EXT4_BLOCKS_PER_GROUP(sb) - 1; in count_overhead()
3869 ext4_set_bit(EXT4_B2C(sbi, b - first_block), buf); in count_overhead()
3874 ext4_set_bit(EXT4_B2C(sbi, b - first_block), buf); in count_overhead()
3878 if (b >= first_block && b + sbi->s_itb_per_group <= last_block) in count_overhead()
3879 for (j = 0; j < sbi->s_itb_per_group; j++, b++) { in count_overhead()
3880 int c = EXT4_B2C(sbi, b - first_block); in count_overhead()
3895 j = EXT4_BLOCKS_PER_GROUP(sb) - s; in count_overhead()
3898 for (; j > 0; j--) in count_overhead()
3903 return EXT4_CLUSTERS_PER_GROUP(sb) - in count_overhead()
3908 * Compute the overhead and stash it in sbi->s_overhead
3913 struct ext4_super_block *es = sbi->s_es; in ext4_calculate_overhead() local
3915 unsigned int j_blocks, j_inum = le32_to_cpu(es->s_journal_inum); in ext4_calculate_overhead()
3921 return -ENOMEM; in ext4_calculate_overhead()
3932 overhead = EXT4_B2C(sbi, le32_to_cpu(es->s_first_data_block)); in ext4_calculate_overhead()
3951 if (sbi->s_journal && !sbi->s_journal_bdev) in ext4_calculate_overhead()
3952 overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_total_len); in ext4_calculate_overhead()
3953 else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) { in ext4_calculate_overhead()
3954 /* j_inum for internal journal is non-zero */ in ext4_calculate_overhead()
3957 j_blocks = j_inode->i_size >> sb->s_blocksize_bits; in ext4_calculate_overhead()
3964 sbi->s_overhead = overhead; in ext4_calculate_overhead()
3991 resv_clusters = (ext4_blocks_count(sbi->s_es) >> in ext4_set_resv_clusters()
3992 sbi->s_cluster_bits); in ext4_set_resv_clusters()
3997 atomic64_set(&sbi->s_resv_clusters, resv_clusters); in ext4_set_resv_clusters()
4002 struct dax_device *dax_dev = fs_dax_get_by_bdev(sb->s_bdev); in ext4_fill_super()
4005 struct ext4_super_block *es = NULL; in ext4_fill_super() local
4016 int ret = -ENOMEM; in ext4_fill_super()
4029 sbi->s_daxdev = dax_dev; in ext4_fill_super()
4030 sbi->s_blockgroup_lock = in ext4_fill_super()
4032 if (!sbi->s_blockgroup_lock) in ext4_fill_super()
4035 sb->s_fs_info = sbi; in ext4_fill_super()
4036 sbi->s_sb = sb; in ext4_fill_super()
4037 sbi->s_inode_readahead_blks = EXT4_DEF_INODE_READAHEAD_BLKS; in ext4_fill_super()
4038 sbi->s_sb_block = sb_block; in ext4_fill_super()
4039 if (sb->s_bdev->bd_part) in ext4_fill_super()
4040 sbi->s_sectors_written_start = in ext4_fill_super()
4041 part_stat_read(sb->s_bdev->bd_part, sectors[STAT_WRITE]); in ext4_fill_super()
4044 strreplace(sb->s_id, '/', '!'); in ext4_fill_super()
4046 /* -EINVAL is default */ in ext4_fill_super()
4047 ret = -EINVAL; in ext4_fill_super()
4074 * some ext4 macro-instructions depend on its value in ext4_fill_super()
4076 es = (struct ext4_super_block *) (bh->b_data + offset); in ext4_fill_super()
4077 sbi->s_es = es; in ext4_fill_super()
4078 sb->s_magic = le16_to_cpu(es->s_magic); in ext4_fill_super()
4079 if (sb->s_magic != EXT4_SUPER_MAGIC) in ext4_fill_super()
4081 sbi->s_kbytes_written = le64_to_cpu(es->s_kbytes_written); in ext4_fill_super()
4090 if (!ext4_verify_csum_type(sb, es)) { in ext4_fill_super()
4098 sbi->s_chksum_driver = crypto_alloc_shash("crc32c", 0, 0); in ext4_fill_super()
4099 if (IS_ERR(sbi->s_chksum_driver)) { in ext4_fill_super()
4101 ret = PTR_ERR(sbi->s_chksum_driver); in ext4_fill_super()
4102 sbi->s_chksum_driver = NULL; in ext4_fill_super()
4107 if (!ext4_superblock_csum_verify(sb, es)) { in ext4_fill_super()
4111 ret = -EFSBADCRC; in ext4_fill_super()
4117 sbi->s_csum_seed = le32_to_cpu(es->s_checksum_seed); in ext4_fill_super()
4119 sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid, in ext4_fill_super()
4120 sizeof(es->s_uuid)); in ext4_fill_super()
4123 def_mount_opts = le32_to_cpu(es->s_default_mount_opts); in ext4_fill_super()
4138 /* don't forget to enable journal_csum when metadata_csum is enabled. */ in ext4_fill_super()
4149 if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC) in ext4_fill_super()
4151 else if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_CONTINUE) in ext4_fill_super()
4160 sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid)); in ext4_fill_super()
4161 sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid)); in ext4_fill_super()
4162 sbi->s_commit_interval = JBD2_DEFAULT_MAX_COMMIT_AGE * HZ; in ext4_fill_super()
4163 sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME; in ext4_fill_super()
4164 sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME; in ext4_fill_super()
4170 * enable delayed allocation by default in ext4_fill_super()
4171 * Use -o nodelalloc to turn it off in ext4_fill_super()
4181 sbi->s_li_wait_mult = EXT4_DEF_LI_WAIT_MULT; in ext4_fill_super()
4183 if (le32_to_cpu(es->s_log_block_size) > in ext4_fill_super()
4184 (EXT4_MAX_BLOCK_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) { in ext4_fill_super()
4187 le32_to_cpu(es->s_log_block_size)); in ext4_fill_super()
4190 if (le32_to_cpu(es->s_log_cluster_size) > in ext4_fill_super()
4191 (EXT4_MAX_CLUSTER_LOG_SIZE - EXT4_MIN_BLOCK_LOG_SIZE)) { in ext4_fill_super()
4194 le32_to_cpu(es->s_log_cluster_size)); in ext4_fill_super()
4198 blocksize = EXT4_MIN_BLOCK_SIZE << le32_to_cpu(es->s_log_block_size); in ext4_fill_super()
4203 if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV) { in ext4_fill_super()
4204 sbi->s_inode_size = EXT4_GOOD_OLD_INODE_SIZE; in ext4_fill_super()
4205 sbi->s_first_ino = EXT4_GOOD_OLD_FIRST_INO; in ext4_fill_super()
4207 sbi->s_inode_size = le16_to_cpu(es->s_inode_size); in ext4_fill_super()
4208 sbi->s_first_ino = le32_to_cpu(es->s_first_ino); in ext4_fill_super()
4209 if (sbi->s_first_ino < EXT4_GOOD_OLD_FIRST_INO) { in ext4_fill_super()
4211 sbi->s_first_ino); in ext4_fill_super()
4214 if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) || in ext4_fill_super()
4215 (!is_power_of_2(sbi->s_inode_size)) || in ext4_fill_super()
4216 (sbi->s_inode_size > blocksize)) { in ext4_fill_super()
4219 sbi->s_inode_size); in ext4_fill_super()
4229 if (sbi->s_inode_size >= offsetof(struct ext4_inode, i_atime_extra) + in ext4_fill_super()
4230 sizeof(((struct ext4_inode *)0)->i_atime_extra)) { in ext4_fill_super()
4231 sb->s_time_gran = 1; in ext4_fill_super()
4232 sb->s_time_max = EXT4_EXTRA_TIMESTAMP_MAX; in ext4_fill_super()
4234 sb->s_time_gran = NSEC_PER_SEC; in ext4_fill_super()
4235 sb->s_time_max = EXT4_NON_EXTRA_TIMESTAMP_MAX; in ext4_fill_super()
4237 sb->s_time_min = EXT4_TIMESTAMP_MIN; in ext4_fill_super()
4239 if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) { in ext4_fill_super()
4240 sbi->s_want_extra_isize = sizeof(struct ext4_inode) - in ext4_fill_super()
4243 unsigned v, max = (sbi->s_inode_size - in ext4_fill_super()
4246 v = le16_to_cpu(es->s_want_extra_isize); in ext4_fill_super()
4252 if (sbi->s_want_extra_isize < v) in ext4_fill_super()
4253 sbi->s_want_extra_isize = v; in ext4_fill_super()
4255 v = le16_to_cpu(es->s_min_extra_isize); in ext4_fill_super()
4261 if (sbi->s_want_extra_isize < v) in ext4_fill_super()
4262 sbi->s_want_extra_isize = v; in ext4_fill_super()
4266 if (sbi->s_es->s_mount_opts[0]) { in ext4_fill_super()
4267 char *s_mount_opts = kstrndup(sbi->s_es->s_mount_opts, in ext4_fill_super()
4268 sizeof(sbi->s_es->s_mount_opts), in ext4_fill_super()
4280 sbi->s_def_mount_opt = sbi->s_mount_opt; in ext4_fill_super()
4286 if (ext4_has_feature_casefold(sb) && !sb->s_encoding) { in ext4_fill_super()
4297 if (ext4_sb_read_encoding(es, &encoding_info, in ext4_fill_super()
4304 encoding = utf8_load(encoding_info->version); in ext4_fill_super()
4307 "can't mount with superblock charset: %s-%s " in ext4_fill_super()
4309 encoding_info->name, encoding_info->version, in ext4_fill_super()
4314 "%s-%s with flags 0x%hx", encoding_info->name, in ext4_fill_super()
4315 encoding_info->version?:"\b", encoding_flags); in ext4_fill_super()
4317 sb->s_encoding = encoding; in ext4_fill_super()
4318 sb->s_encoding_flags = encoding_flags; in ext4_fill_super()
4323 …printk_once(KERN_WARNING "EXT4-fs: Warning: mounting with data=journal disables delayed allocation… in ext4_fill_super()
4345 sb->s_iflags |= SB_I_CGROUPWB; in ext4_fill_super()
4348 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | in ext4_fill_super()
4351 if (le32_to_cpu(es->s_rev_level) == EXT4_GOOD_OLD_REV && in ext4_fill_super()
4359 if (es->s_creator_os == cpu_to_le32(EXT4_OS_HURD)) { in ext4_fill_super()
4363 "The Hurd can't support 64-bit file systems"); in ext4_fill_super()
4420 if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (blocksize / 4)) { in ext4_fill_super()
4423 le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks)); in ext4_fill_super()
4427 if (bdev_dax_supported(sb->s_bdev, blocksize)) in ext4_fill_super()
4428 set_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags); in ext4_fill_super()
4430 if (sbi->s_mount_opt & EXT4_MOUNT_DAX_ALWAYS) { in ext4_fill_super()
4436 if (!test_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags)) { in ext4_fill_super()
4443 if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) { in ext4_fill_super()
4445 es->s_encryption_level); in ext4_fill_super()
4449 if (sb->s_blocksize != blocksize) { in ext4_fill_super()
4474 es = (struct ext4_super_block *)(bh->b_data + offset); in ext4_fill_super()
4475 sbi->s_es = es; in ext4_fill_super()
4476 if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) { in ext4_fill_super()
4484 sbi->s_bitmap_maxbytes = ext4_max_bitmap_size(sb->s_blocksize_bits, in ext4_fill_super()
4486 sb->s_maxbytes = ext4_max_size(sb->s_blocksize_bits, has_huge_files); in ext4_fill_super()
4488 sbi->s_desc_size = le16_to_cpu(es->s_desc_size); in ext4_fill_super()
4490 if (sbi->s_desc_size < EXT4_MIN_DESC_SIZE_64BIT || in ext4_fill_super()
4491 sbi->s_desc_size > EXT4_MAX_DESC_SIZE || in ext4_fill_super()
4492 !is_power_of_2(sbi->s_desc_size)) { in ext4_fill_super()
4495 sbi->s_desc_size); in ext4_fill_super()
4499 sbi->s_desc_size = EXT4_MIN_DESC_SIZE; in ext4_fill_super()
4501 sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group); in ext4_fill_super()
4502 sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group); in ext4_fill_super()
4504 sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb); in ext4_fill_super()
4505 if (sbi->s_inodes_per_block == 0) in ext4_fill_super()
4507 if (sbi->s_inodes_per_group < sbi->s_inodes_per_block || in ext4_fill_super()
4508 sbi->s_inodes_per_group > blocksize * 8) { in ext4_fill_super()
4510 sbi->s_inodes_per_group); in ext4_fill_super()
4513 sbi->s_itb_per_group = sbi->s_inodes_per_group / in ext4_fill_super()
4514 sbi->s_inodes_per_block; in ext4_fill_super()
4515 sbi->s_desc_per_block = blocksize / EXT4_DESC_SIZE(sb); in ext4_fill_super()
4516 sbi->s_sbh = bh; in ext4_fill_super()
4517 sbi->s_mount_state = le16_to_cpu(es->s_state) & ~EXT4_FC_REPLAY; in ext4_fill_super()
4518 sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb)); in ext4_fill_super()
4519 sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb)); in ext4_fill_super()
4522 sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]); in ext4_fill_super()
4523 sbi->s_def_hash_version = es->s_def_hash_version; in ext4_fill_super()
4525 i = le32_to_cpu(es->s_flags); in ext4_fill_super()
4527 sbi->s_hash_unsigned = 3; in ext4_fill_super()
4531 es->s_flags |= in ext4_fill_super()
4533 sbi->s_hash_unsigned = 3; in ext4_fill_super()
4536 es->s_flags |= in ext4_fill_super()
4543 clustersize = BLOCK_SIZE << le32_to_cpu(es->s_log_cluster_size); in ext4_fill_super()
4551 sbi->s_cluster_bits = le32_to_cpu(es->s_log_cluster_size) - in ext4_fill_super()
4552 le32_to_cpu(es->s_log_block_size); in ext4_fill_super()
4553 sbi->s_clusters_per_group = in ext4_fill_super()
4554 le32_to_cpu(es->s_clusters_per_group); in ext4_fill_super()
4555 if (sbi->s_clusters_per_group > blocksize * 8) { in ext4_fill_super()
4558 sbi->s_clusters_per_group); in ext4_fill_super()
4561 if (sbi->s_blocks_per_group != in ext4_fill_super()
4562 (sbi->s_clusters_per_group * (clustersize / blocksize))) { in ext4_fill_super()
4565 sbi->s_blocks_per_group, in ext4_fill_super()
4566 sbi->s_clusters_per_group); in ext4_fill_super()
4576 if (sbi->s_blocks_per_group > blocksize * 8) { in ext4_fill_super()
4579 sbi->s_blocks_per_group); in ext4_fill_super()
4582 sbi->s_clusters_per_group = sbi->s_blocks_per_group; in ext4_fill_super()
4583 sbi->s_cluster_bits = 0; in ext4_fill_super()
4585 sbi->s_cluster_ratio = clustersize / blocksize; in ext4_fill_super()
4588 if (sbi->s_blocks_per_group == clustersize << 3) in ext4_fill_super()
4595 err = generic_check_addressable(sb->s_blocksize_bits, in ext4_fill_super()
4596 ext4_blocks_count(es)); in ext4_fill_super()
4607 blocks_count = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits; in ext4_fill_super()
4608 if (blocks_count && ext4_blocks_count(es) > blocks_count) { in ext4_fill_super()
4611 ext4_blocks_count(es), blocks_count); in ext4_fill_super()
4619 if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) { in ext4_fill_super()
4622 le32_to_cpu(es->s_first_data_block), in ext4_fill_super()
4623 ext4_blocks_count(es)); in ext4_fill_super()
4626 if ((es->s_first_data_block == 0) && (es->s_log_block_size == 0) && in ext4_fill_super()
4627 (sbi->s_cluster_ratio == 1)) { in ext4_fill_super()
4633 blocks_count = (ext4_blocks_count(es) - in ext4_fill_super()
4634 le32_to_cpu(es->s_first_data_block) + in ext4_fill_super()
4635 EXT4_BLOCKS_PER_GROUP(sb) - 1); in ext4_fill_super()
4637 if (blocks_count > ((uint64_t)1<<32) - EXT4_DESC_PER_BLOCK(sb)) { in ext4_fill_super()
4641 ext4_blocks_count(es), in ext4_fill_super()
4642 le32_to_cpu(es->s_first_data_block), in ext4_fill_super()
4646 sbi->s_groups_count = blocks_count; in ext4_fill_super()
4647 sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count, in ext4_fill_super()
4649 if (((u64)sbi->s_groups_count * sbi->s_inodes_per_group) != in ext4_fill_super()
4650 le32_to_cpu(es->s_inodes_count)) { in ext4_fill_super()
4652 le32_to_cpu(es->s_inodes_count), in ext4_fill_super()
4653 ((u64)sbi->s_groups_count * sbi->s_inodes_per_group)); in ext4_fill_super()
4654 ret = -EINVAL; in ext4_fill_super()
4657 db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) / in ext4_fill_super()
4660 if (le32_to_cpu(es->s_first_meta_bg) > db_count) { in ext4_fill_super()
4664 le32_to_cpu(es->s_first_meta_bg), db_count); in ext4_fill_super()
4668 rcu_assign_pointer(sbi->s_group_desc, in ext4_fill_super()
4672 if (sbi->s_group_desc == NULL) { in ext4_fill_super()
4674 ret = -ENOMEM; in ext4_fill_super()
4678 bgl_lock_init(sbi->s_blockgroup_lock); in ext4_fill_super()
4680 /* Pre-read the descriptors into the buffer cache */ in ext4_fill_super()
4700 rcu_dereference(sbi->s_group_desc)[i] = bh; in ext4_fill_super()
4703 sbi->s_gdb_count = db_count; in ext4_fill_super()
4706 ret = -EFSCORRUPTED; in ext4_fill_super()
4710 timer_setup(&sbi->s_err_report, print_daily_error_info, 0); in ext4_fill_super()
4711 spin_lock_init(&sbi->s_error_lock); in ext4_fill_super()
4712 INIT_WORK(&sbi->s_error_work, flush_stashed_error_work); in ext4_fill_super()
4718 sbi->s_stripe = ext4_get_stripe_size(sbi); in ext4_fill_super()
4719 sbi->s_extent_max_zeroout_kb = 32; in ext4_fill_super()
4724 sb->s_op = &ext4_sops; in ext4_fill_super()
4725 sb->s_export_op = &ext4_export_ops; in ext4_fill_super()
4726 sb->s_xattr = ext4_xattr_handlers; in ext4_fill_super()
4728 sb->s_cop = &ext4_cryptops; in ext4_fill_super()
4731 sb->s_vop = &ext4_verityops; in ext4_fill_super()
4734 sb->dq_op = &ext4_quota_operations; in ext4_fill_super()
4736 sb->s_qcop = &dquot_quotactl_sysfile_ops; in ext4_fill_super()
4738 sb->s_qcop = &ext4_qctl_operations; in ext4_fill_super()
4739 sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; in ext4_fill_super()
4741 memcpy(&sb->s_uuid, es->s_uuid, sizeof(es->s_uuid)); in ext4_fill_super()
4743 INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ in ext4_fill_super()
4744 mutex_init(&sbi->s_orphan_lock); in ext4_fill_super()
4746 spin_lock_init(&sbi->s_bdev_wb_lock); in ext4_fill_super()
4749 atomic_set(&sbi->s_fc_subtid, 0); in ext4_fill_super()
4750 atomic_set(&sbi->s_fc_ineligible_updates, 0); in ext4_fill_super()
4751 INIT_LIST_HEAD(&sbi->s_fc_q[FC_Q_MAIN]); in ext4_fill_super()
4752 INIT_LIST_HEAD(&sbi->s_fc_q[FC_Q_STAGING]); in ext4_fill_super()
4753 INIT_LIST_HEAD(&sbi->s_fc_dentry_q[FC_Q_MAIN]); in ext4_fill_super()
4754 INIT_LIST_HEAD(&sbi->s_fc_dentry_q[FC_Q_STAGING]); in ext4_fill_super()
4755 sbi->s_fc_bytes = 0; in ext4_fill_super()
4758 spin_lock_init(&sbi->s_fc_lock); in ext4_fill_super()
4759 memset(&sbi->s_fc_stats, 0, sizeof(sbi->s_fc_stats)); in ext4_fill_super()
4760 sbi->s_fc_replay_state.fc_regions = NULL; in ext4_fill_super()
4761 sbi->s_fc_replay_state.fc_regions_size = 0; in ext4_fill_super()
4762 sbi->s_fc_replay_state.fc_regions_used = 0; in ext4_fill_super()
4763 sbi->s_fc_replay_state.fc_regions_valid = 0; in ext4_fill_super()
4764 sbi->s_fc_replay_state.fc_modified_inodes = NULL; in ext4_fill_super()
4765 sbi->s_fc_replay_state.fc_modified_inodes_size = 0; in ext4_fill_super()
4766 sbi->s_fc_replay_state.fc_modified_inodes_used = 0; in ext4_fill_super()
4768 sb->s_root = NULL; in ext4_fill_super()
4770 needs_recovery = (es->s_last_orphan != 0 || in ext4_fill_super()
4774 err = ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)); in ext4_fill_super()
4784 err = ext4_load_journal(sb, es, journal_devnum); in ext4_fill_super()
4790 "suppressed and not mounted read-only"); in ext4_fill_super()
4805 if (sbi->s_commit_interval != JBD2_DEFAULT_MAX_COMMIT_AGE*HZ) { in ext4_fill_super()
4808 sbi->s_commit_interval / HZ); in ext4_fill_super()
4812 (sbi->s_mount_opt ^ sbi->s_def_mount_opt)) { in ext4_fill_super()
4817 sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM; in ext4_fill_super()
4821 sbi->s_journal = NULL; in ext4_fill_super()
4827 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, in ext4_fill_super()
4829 ext4_msg(sb, KERN_ERR, "Failed to set 64-bit journal feature"); in ext4_fill_super()
4840 !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, in ext4_fill_super()
4856 (sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE)) { in ext4_fill_super()
4858 sbi->s_def_mount_opt |= EXT4_MOUNT_ORDERED_DATA; in ext4_fill_super()
4861 sbi->s_def_mount_opt |= EXT4_MOUNT_JOURNAL_DATA; in ext4_fill_super()
4868 (sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE)) { in ext4_fill_super()
4884 set_task_ioprio(sbi->s_journal->j_task, journal_ioprio); in ext4_fill_super()
4886 sbi->s_journal->j_submit_inode_data_buffers = in ext4_fill_super()
4888 sbi->s_journal->j_finish_inode_data_buffers = in ext4_fill_super()
4893 sbi->s_ea_block_cache = ext4_xattr_create_cache(); in ext4_fill_super()
4894 if (!sbi->s_ea_block_cache) { in ext4_fill_super()
4901 sbi->s_ea_inode_cache = ext4_xattr_create_cache(); in ext4_fill_super()
4902 if (!sbi->s_ea_inode_cache) { in ext4_fill_super()
4911 ext4_msg(sb, KERN_ERR, "Unsupported blocksize for fs-verity"); in ext4_fill_super()
4919 sbi->s_overhead = le32_to_cpu(es->s_overhead_clusters); in ext4_fill_super()
4921 if (sbi->s_overhead > ext4_blocks_count(es)) in ext4_fill_super()
4922 sbi->s_overhead = 0; in ext4_fill_super()
4929 sbi->s_overhead = 0; in ext4_fill_super()
4930 if (sbi->s_overhead == 0) { in ext4_fill_super()
4940 EXT4_SB(sb)->rsv_conversion_wq = in ext4_fill_super()
4941 alloc_workqueue("ext4-rsv-conversion", WQ_MEM_RECLAIM | WQ_UNBOUND, 1); in ext4_fill_super()
4942 if (!EXT4_SB(sb)->rsv_conversion_wq) { in ext4_fill_super()
4943 printk(KERN_ERR "EXT4-fs: failed to create workqueue\n"); in ext4_fill_super()
4944 ret = -ENOMEM; in ext4_fill_super()
4960 if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { in ext4_fill_super()
4967 if (sb->s_encoding) in ext4_fill_super()
4968 sb->s_d_op = &ext4_dentry_ops; in ext4_fill_super()
4971 sb->s_root = d_make_root(root); in ext4_fill_super()
4972 if (!sb->s_root) { in ext4_fill_super()
4974 ret = -ENOMEM; in ext4_fill_super()
4978 ret = ext4_setup_super(sb, es, sb_rdonly(sb)); in ext4_fill_super()
4979 if (ret == -EROFS) { in ext4_fill_super()
4980 sb->s_flags |= SB_RDONLY; in ext4_fill_super()
5009 if (sbi->s_journal) in ext4_fill_super()
5010 sbi->s_journal->j_commit_callback = in ext4_fill_super()
5014 ext4_free_blocks_count_set(sbi->s_es, in ext4_fill_super()
5016 err = percpu_counter_init(&sbi->s_freeclusters_counter, block, in ext4_fill_super()
5020 sbi->s_es->s_free_inodes_count = cpu_to_le32(freei); in ext4_fill_super()
5021 err = percpu_counter_init(&sbi->s_freeinodes_counter, freei, in ext4_fill_super()
5033 err = percpu_counter_init(&sbi->s_dirs_counter, in ext4_fill_super()
5036 err = percpu_counter_init(&sbi->s_dirtyclusters_counter, 0, in ext4_fill_super()
5039 err = percpu_counter_init(&sbi->s_sra_exceeded_retry_limit, 0, in ext4_fill_super()
5042 err = percpu_init_rwsem(&sbi->s_writepages_rwsem); in ext4_fill_super()
5054 ret = -ENOMEM; in ext4_fill_super()
5067 /* Enable quota usage during mount. */ in ext4_fill_super()
5079 errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err, in ext4_fill_super()
5080 &sbi->s_bdev_wb_err); in ext4_fill_super()
5081 sb->s_bdev->bd_super = sb; in ext4_fill_super()
5082 EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS; in ext4_fill_super()
5083 ext4_orphan_cleanup(sb, es); in ext4_fill_super()
5084 EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS; in ext4_fill_super()
5087 err = ext4_mark_recovery_complete(sb, es); in ext4_fill_super()
5091 if (EXT4_SB(sb)->s_journal) { in ext4_fill_super()
5102 struct request_queue *q = bdev_get_queue(sb->s_bdev); in ext4_fill_super()
5109 if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount")) in ext4_fill_super()
5112 (int) sizeof(sbi->s_es->s_mount_opts), in ext4_fill_super()
5113 sbi->s_es->s_mount_opts, in ext4_fill_super()
5114 *sbi->s_es->s_mount_opts ? "; " : "", orig_data); in ext4_fill_super()
5116 if (es->s_error_count) in ext4_fill_super()
5117 mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */ in ext4_fill_super()
5119 /* Enable message ratelimiting. Default is 10 messages per 5 secs. */ in ext4_fill_super()
5120 ratelimit_state_init(&sbi->s_err_ratelimit_state, 5 * HZ, 10); in ext4_fill_super()
5121 ratelimit_state_init(&sbi->s_warning_ratelimit_state, 5 * HZ, 10); in ext4_fill_super()
5122 ratelimit_state_init(&sbi->s_msg_ratelimit_state, 5 * HZ, 10); in ext4_fill_super()
5123 atomic_set(&sbi->s_warning_count, 0); in ext4_fill_super()
5124 atomic_set(&sbi->s_msg_count, 0); in ext4_fill_super()
5136 kobject_put(&sbi->s_kobj); in ext4_fill_super()
5142 flex_groups = rcu_dereference(sbi->s_flex_groups); in ext4_fill_super()
5144 for (i = 0; i < sbi->s_flex_groups_allocated; i++) in ext4_fill_super()
5149 percpu_counter_destroy(&sbi->s_freeclusters_counter); in ext4_fill_super()
5150 percpu_counter_destroy(&sbi->s_freeinodes_counter); in ext4_fill_super()
5151 percpu_counter_destroy(&sbi->s_dirs_counter); in ext4_fill_super()
5152 percpu_counter_destroy(&sbi->s_dirtyclusters_counter); in ext4_fill_super()
5153 percpu_counter_destroy(&sbi->s_sra_exceeded_retry_limit); in ext4_fill_super()
5154 percpu_free_rwsem(&sbi->s_writepages_rwsem); in ext4_fill_super()
5159 dput(sb->s_root); in ext4_fill_super()
5160 sb->s_root = NULL; in ext4_fill_super()
5163 if (EXT4_SB(sb)->rsv_conversion_wq) in ext4_fill_super()
5164 destroy_workqueue(EXT4_SB(sb)->rsv_conversion_wq); in ext4_fill_super()
5166 ext4_xattr_destroy_cache(sbi->s_ea_inode_cache); in ext4_fill_super()
5167 sbi->s_ea_inode_cache = NULL; in ext4_fill_super()
5169 ext4_xattr_destroy_cache(sbi->s_ea_block_cache); in ext4_fill_super()
5170 sbi->s_ea_block_cache = NULL; in ext4_fill_super()
5172 if (sbi->s_journal) { in ext4_fill_super()
5174 flush_work(&sbi->s_error_work); in ext4_fill_super()
5175 jbd2_journal_destroy(sbi->s_journal); in ext4_fill_super()
5176 sbi->s_journal = NULL; in ext4_fill_super()
5182 flush_work(&sbi->s_error_work); in ext4_fill_super()
5184 del_timer_sync(&sbi->s_err_report); in ext4_fill_super()
5187 group_desc = rcu_dereference(sbi->s_group_desc); in ext4_fill_super()
5193 if (sbi->s_chksum_driver) in ext4_fill_super()
5194 crypto_free_shash(sbi->s_chksum_driver); in ext4_fill_super()
5197 utf8_unload(sb->s_encoding); in ext4_fill_super()
5204 fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy); in ext4_fill_super()
5209 invalidate_bdev(sb->s_bdev); in ext4_fill_super()
5210 sb->s_fs_info = NULL; in ext4_fill_super()
5211 kfree(sbi->s_blockgroup_lock); in ext4_fill_super()
5220 * Setup any per-fs journal parameters now. We'll do this both on
5228 journal->j_commit_interval = sbi->s_commit_interval; in ext4_init_journal_params()
5229 journal->j_min_batch_time = sbi->s_min_batch_time; in ext4_init_journal_params()
5230 journal->j_max_batch_time = sbi->s_max_batch_time; in ext4_init_journal_params()
5233 write_lock(&journal->j_state_lock); in ext4_init_journal_params()
5235 journal->j_flags |= JBD2_BARRIER; in ext4_init_journal_params()
5237 journal->j_flags &= ~JBD2_BARRIER; in ext4_init_journal_params()
5239 journal->j_flags |= JBD2_ABORT_ON_SYNCDATA_ERR; in ext4_init_journal_params()
5241 journal->j_flags &= ~JBD2_ABORT_ON_SYNCDATA_ERR; in ext4_init_journal_params()
5242 write_unlock(&journal->j_state_lock); in ext4_init_journal_params()
5260 if (!journal_inode->i_nlink) { in ext4_get_journal_inode()
5268 journal_inode, journal_inode->i_size); in ext4_get_journal_inode()
5269 if (!S_ISREG(journal_inode->i_mode) || IS_ENCRYPTED(journal_inode)) { in ext4_get_journal_inode()
5296 journal->j_private = sb; in ext4_get_journal()
5311 struct ext4_super_block *es; in ext4_get_dev_journal() local
5321 blocksize = sb->s_blocksize; in ext4_get_dev_journal()
5338 es = (struct ext4_super_block *) (bh->b_data + offset); in ext4_get_dev_journal()
5339 if ((le16_to_cpu(es->s_magic) != EXT4_SUPER_MAGIC) || in ext4_get_dev_journal()
5340 !(le32_to_cpu(es->s_feature_incompat) & in ext4_get_dev_journal()
5348 if ((le32_to_cpu(es->s_feature_ro_compat) & in ext4_get_dev_journal()
5350 es->s_checksum != ext4_superblock_csum(sb, es)) { in ext4_get_dev_journal()
5357 if (memcmp(EXT4_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) { in ext4_get_dev_journal()
5363 len = ext4_blocks_count(es); in ext4_get_dev_journal()
5367 journal = jbd2_journal_init_dev(bdev, sb->s_bdev, in ext4_get_dev_journal()
5373 journal->j_private = sb; in ext4_get_dev_journal()
5374 if (ext4_read_bh_lock(journal->j_sb_buffer, REQ_META | REQ_PRIO, true)) { in ext4_get_dev_journal()
5378 if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) { in ext4_get_dev_journal()
5380 "user (unsupported) - %d", in ext4_get_dev_journal()
5381 be32_to_cpu(journal->j_superblock->s_nr_users)); in ext4_get_dev_journal()
5384 EXT4_SB(sb)->s_journal_bdev = bdev; in ext4_get_dev_journal()
5396 struct ext4_super_block *es, in ext4_load_journal() argument
5400 unsigned int journal_inum = le32_to_cpu(es->s_journal_inum); in ext4_load_journal()
5407 return -EFSCORRUPTED; in ext4_load_journal()
5410 journal_devnum != le32_to_cpu(es->s_journal_dev)) { in ext4_load_journal()
5415 journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev)); in ext4_load_journal()
5420 return -EINVAL; in ext4_load_journal()
5426 return -EINVAL; in ext4_load_journal()
5430 return -EINVAL; in ext4_load_journal()
5433 journal_dev_ro = bdev_read_only(journal->j_dev); in ext4_load_journal()
5434 really_read_only = bdev_read_only(sb->s_bdev) | journal_dev_ro; in ext4_load_journal()
5438 "journal device read-only, try mounting with '-o ro'"); in ext4_load_journal()
5439 err = -EROFS; in ext4_load_journal()
5446 * can get read-write access to the device. in ext4_load_journal()
5456 err = -EROFS; in ext4_load_journal()
5464 if (!(journal->j_flags & JBD2_BARRIER)) in ext4_load_journal()
5472 memcpy(save, ((char *) es) + in ext4_load_journal()
5476 memcpy(((char *) es) + EXT4_S_ERR_START, in ext4_load_journal()
5486 EXT4_SB(sb)->s_journal = journal; in ext4_load_journal()
5487 err = ext4_clear_journal_err(sb, es); in ext4_load_journal()
5489 EXT4_SB(sb)->s_journal = NULL; in ext4_load_journal()
5495 journal_devnum != le32_to_cpu(es->s_journal_dev)) { in ext4_load_journal()
5496 es->s_journal_dev = cpu_to_le32(journal_devnum); in ext4_load_journal()
5509 /* Copy state of EXT4_SB(sb) into buffer for on-disk superblock */
5513 struct ext4_super_block *es = sbi->s_es; in ext4_update_super() local
5514 struct buffer_head *sbh = sbi->s_sbh; in ext4_update_super()
5518 * If the file system is mounted read-only, don't update the in ext4_update_super()
5523 * tick in localtime for Windows bug-for-bug compatibility, in ext4_update_super()
5527 if (!(sb->s_flags & SB_RDONLY)) in ext4_update_super()
5528 ext4_update_tstamp(es, s_wtime); in ext4_update_super()
5529 if (sb->s_bdev->bd_part) in ext4_update_super()
5530 es->s_kbytes_written = in ext4_update_super()
5531 cpu_to_le64(sbi->s_kbytes_written + in ext4_update_super()
5532 ((part_stat_read(sb->s_bdev->bd_part, in ext4_update_super()
5533 sectors[STAT_WRITE]) - in ext4_update_super()
5534 sbi->s_sectors_written_start) >> 1)); in ext4_update_super()
5536 es->s_kbytes_written = cpu_to_le64(sbi->s_kbytes_written); in ext4_update_super()
5537 if (percpu_counter_initialized(&sbi->s_freeclusters_counter)) in ext4_update_super()
5538 ext4_free_blocks_count_set(es, in ext4_update_super()
5540 &sbi->s_freeclusters_counter))); in ext4_update_super()
5541 if (percpu_counter_initialized(&sbi->s_freeinodes_counter)) in ext4_update_super()
5542 es->s_free_inodes_count = in ext4_update_super()
5544 &sbi->s_freeinodes_counter)); in ext4_update_super()
5545 /* Copy error information to the on-disk superblock */ in ext4_update_super()
5546 spin_lock(&sbi->s_error_lock); in ext4_update_super()
5547 if (sbi->s_add_error_count > 0) { in ext4_update_super()
5548 es->s_state |= cpu_to_le16(EXT4_ERROR_FS); in ext4_update_super()
5549 if (!es->s_first_error_time && !es->s_first_error_time_hi) { in ext4_update_super()
5550 __ext4_update_tstamp(&es->s_first_error_time, in ext4_update_super()
5551 &es->s_first_error_time_hi, in ext4_update_super()
5552 sbi->s_first_error_time); in ext4_update_super()
5553 strncpy(es->s_first_error_func, sbi->s_first_error_func, in ext4_update_super()
5554 sizeof(es->s_first_error_func)); in ext4_update_super()
5555 es->s_first_error_line = in ext4_update_super()
5556 cpu_to_le32(sbi->s_first_error_line); in ext4_update_super()
5557 es->s_first_error_ino = in ext4_update_super()
5558 cpu_to_le32(sbi->s_first_error_ino); in ext4_update_super()
5559 es->s_first_error_block = in ext4_update_super()
5560 cpu_to_le64(sbi->s_first_error_block); in ext4_update_super()
5561 es->s_first_error_errcode = in ext4_update_super()
5562 ext4_errno_to_code(sbi->s_first_error_code); in ext4_update_super()
5564 __ext4_update_tstamp(&es->s_last_error_time, in ext4_update_super()
5565 &es->s_last_error_time_hi, in ext4_update_super()
5566 sbi->s_last_error_time); in ext4_update_super()
5567 strncpy(es->s_last_error_func, sbi->s_last_error_func, in ext4_update_super()
5568 sizeof(es->s_last_error_func)); in ext4_update_super()
5569 es->s_last_error_line = cpu_to_le32(sbi->s_last_error_line); in ext4_update_super()
5570 es->s_last_error_ino = cpu_to_le32(sbi->s_last_error_ino); in ext4_update_super()
5571 es->s_last_error_block = cpu_to_le64(sbi->s_last_error_block); in ext4_update_super()
5572 es->s_last_error_errcode = in ext4_update_super()
5573 ext4_errno_to_code(sbi->s_last_error_code); in ext4_update_super()
5578 if (!es->s_error_count) in ext4_update_super()
5579 mod_timer(&sbi->s_err_report, jiffies + 24*60*60*HZ); in ext4_update_super()
5580 le32_add_cpu(&es->s_error_count, sbi->s_add_error_count); in ext4_update_super()
5581 sbi->s_add_error_count = 0; in ext4_update_super()
5583 spin_unlock(&sbi->s_error_lock); in ext4_update_super()
5591 struct buffer_head *sbh = EXT4_SB(sb)->s_sbh; in ext4_commit_super()
5595 return -EINVAL; in ext4_commit_super()
5597 return -ENODEV; in ext4_commit_super()
5634 struct ext4_super_block *es) in ext4_mark_recovery_complete() argument
5637 journal_t *journal = EXT4_SB(sb)->s_journal; in ext4_mark_recovery_complete()
5643 return -EFSCORRUPTED; in ext4_mark_recovery_complete()
5662 * If we are mounting (or read-write remounting) a filesystem whose journal
5667 struct ext4_super_block *es) in ext4_clear_journal_err() argument
5675 return -EFSCORRUPTED; in ext4_clear_journal_err()
5678 journal = EXT4_SB(sb)->s_journal; in ext4_clear_journal_err()
5694 EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS; in ext4_clear_journal_err()
5695 es->s_state |= cpu_to_le16(EXT4_ERROR_FS); in ext4_clear_journal_err()
5715 journal = EXT4_SB(sb)->s_journal; in ext4_force_commit()
5730 flush_workqueue(sbi->rsv_conversion_wq); in ext4_sync_fs()
5732 * Writeback quota in non-journalled quota case - journalled quota has in ext4_sync_fs()
5735 dquot_writeback_dquots(sb, -1); in ext4_sync_fs()
5741 if (sbi->s_journal) { in ext4_sync_fs()
5742 target = jbd2_get_latest_transaction(sbi->s_journal); in ext4_sync_fs()
5743 if (wait && sbi->s_journal->j_flags & JBD2_BARRIER && in ext4_sync_fs()
5744 !jbd2_trans_will_send_data_barrier(sbi->s_journal, target)) in ext4_sync_fs()
5747 if (jbd2_journal_start_commit(sbi->s_journal, &target)) { in ext4_sync_fs()
5749 ret = jbd2_log_wait_commit(sbi->s_journal, in ext4_sync_fs()
5756 err = blkdev_issue_flush(sb->s_bdev, GFP_KERNEL); in ext4_sync_fs()
5765 * LVM calls this function before a (read-only) snapshot is created. This
5780 journal = EXT4_SB(sb)->s_journal; in ext4_freeze()
5815 if (EXT4_SB(sb)->s_journal) { in ext4_unfreeze()
5842 struct ext4_super_block *es; in ext4_remount() local
5857 return -ENOMEM; in ext4_remount()
5860 old_sb_flags = sb->s_flags; in ext4_remount()
5861 old_opts.s_mount_opt = sbi->s_mount_opt; in ext4_remount()
5862 old_opts.s_mount_opt2 = sbi->s_mount_opt2; in ext4_remount()
5863 old_opts.s_resuid = sbi->s_resuid; in ext4_remount()
5864 old_opts.s_resgid = sbi->s_resgid; in ext4_remount()
5865 old_opts.s_commit_interval = sbi->s_commit_interval; in ext4_remount()
5866 old_opts.s_min_batch_time = sbi->s_min_batch_time; in ext4_remount()
5867 old_opts.s_max_batch_time = sbi->s_max_batch_time; in ext4_remount()
5869 old_opts.s_jquota_fmt = sbi->s_jquota_fmt; in ext4_remount()
5871 if (sbi->s_qf_names[i]) { in ext4_remount()
5879 return -ENOMEM; in ext4_remount()
5884 if (sbi->s_journal && sbi->s_journal->j_task->io_context) in ext4_remount()
5885 journal_ioprio = sbi->s_journal->j_task->io_context->ioprio; in ext4_remount()
5893 sb->s_flags = (sb->s_flags & ~vfs_flags) | (*flags & vfs_flags); in ext4_remount()
5896 err = -EINVAL; in ext4_remount()
5904 sbi->s_mount_opt ^= EXT4_MOUNT_JOURNAL_CHECKSUM; in ext4_remount()
5911 err = -EINVAL; in ext4_remount()
5917 err = -EINVAL; in ext4_remount()
5924 err = -EINVAL; in ext4_remount()
5929 if ((sbi->s_mount_opt ^ old_opts.s_mount_opt) & EXT4_MOUNT_NO_MBCACHE) { in ext4_remount()
5930 ext4_msg(sb, KERN_ERR, "can't enable nombcache during remount"); in ext4_remount()
5931 err = -EINVAL; in ext4_remount()
5938 sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | in ext4_remount()
5941 es = sbi->s_es; in ext4_remount()
5943 if (sbi->s_journal) { in ext4_remount()
5944 ext4_init_journal_params(sb, sbi->s_journal); in ext4_remount()
5945 set_task_ioprio(sbi->s_journal->j_task, journal_ioprio); in ext4_remount()
5949 flush_work(&sbi->s_error_work); in ext4_remount()
5953 err = -EROFS; in ext4_remount()
5961 err = dquot_suspend(sb, -1); in ext4_remount()
5969 sb->s_flags |= SB_RDONLY; in ext4_remount()
5976 if (!(es->s_state & cpu_to_le16(EXT4_VALID_FS)) && in ext4_remount()
5977 (sbi->s_mount_state & EXT4_VALID_FS)) in ext4_remount()
5978 es->s_state = cpu_to_le16(sbi->s_mount_state); in ext4_remount()
5980 if (sbi->s_journal) { in ext4_remount()
5982 * We let remount-ro finish even if marking fs in ext4_remount()
5985 ext4_mark_recovery_complete(sb, es); in ext4_remount()
5991 err = -EROFS; in ext4_remount()
5998 for (g = 0; g < sbi->s_groups_count; g++) { in ext4_remount()
6006 le16_to_cpu(gdp->bg_checksum)); in ext4_remount()
6007 err = -EFSBADCRC; in ext4_remount()
6017 if (es->s_last_orphan) { in ext4_remount()
6022 err = -EINVAL; in ext4_remount()
6027 * Mounting a RDONLY partition read-write, so reread in ext4_remount()
6032 if (sbi->s_journal) { in ext4_remount()
6033 err = ext4_clear_journal_err(sb, es); in ext4_remount()
6037 sbi->s_mount_state = (le16_to_cpu(es->s_state) & in ext4_remount()
6040 err = ext4_setup_super(sb, es, 0); in ext4_remount()
6044 sb->s_flags &= ~SB_RDONLY; in ext4_remount()
6047 le64_to_cpu(es->s_mmp_block)); in ext4_remount()
6062 if (test_opt(sb, BLOCK_VALIDITY) && !sbi->s_system_blks) { in ext4_remount()
6068 if (sbi->s_journal == NULL && !(old_sb_flags & SB_RDONLY)) { in ext4_remount()
6077 dquot_resume(sb, -1); in ext4_remount()
6088 if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) in ext4_remount()
6111 *flags = (*flags & ~vfs_flags) | (sb->s_flags & vfs_flags); in ext4_remount()
6113 ext4_msg(sb, KERN_INFO, "re-mounted. Opts: %s", orig_data); in ext4_remount()
6120 * re-enable quota in ext4_remount()
6122 if ((sb->s_flags & SB_RDONLY) && !(old_sb_flags & SB_RDONLY) && in ext4_remount()
6124 dquot_resume(sb, -1); in ext4_remount()
6125 sb->s_flags = old_sb_flags; in ext4_remount()
6126 sbi->s_mount_opt = old_opts.s_mount_opt; in ext4_remount()
6127 sbi->s_mount_opt2 = old_opts.s_mount_opt2; in ext4_remount()
6128 sbi->s_resuid = old_opts.s_resuid; in ext4_remount()
6129 sbi->s_resgid = old_opts.s_resgid; in ext4_remount()
6130 sbi->s_commit_interval = old_opts.s_commit_interval; in ext4_remount()
6131 sbi->s_min_batch_time = old_opts.s_min_batch_time; in ext4_remount()
6132 sbi->s_max_batch_time = old_opts.s_max_batch_time; in ext4_remount()
6133 if (!test_opt(sb, BLOCK_VALIDITY) && sbi->s_system_blks) in ext4_remount()
6136 sbi->s_jquota_fmt = old_opts.s_jquota_fmt; in ext4_remount()
6139 rcu_assign_pointer(sbi->s_qf_names[i], old_opts.s_qf_names[i]); in ext4_remount()
6164 spin_lock(&dquot->dq_dqb_lock); in ext4_statfs_project()
6166 limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit, in ext4_statfs_project()
6167 dquot->dq_dqb.dqb_bhardlimit); in ext4_statfs_project()
6168 limit >>= sb->s_blocksize_bits; in ext4_statfs_project()
6170 if (limit && buf->f_blocks > limit) { in ext4_statfs_project()
6171 curblock = (dquot->dq_dqb.dqb_curspace + in ext4_statfs_project()
6172 dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits; in ext4_statfs_project()
6173 buf->f_blocks = limit; in ext4_statfs_project()
6174 buf->f_bfree = buf->f_bavail = in ext4_statfs_project()
6175 (buf->f_blocks > curblock) ? in ext4_statfs_project()
6176 (buf->f_blocks - curblock) : 0; in ext4_statfs_project()
6179 limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit, in ext4_statfs_project()
6180 dquot->dq_dqb.dqb_ihardlimit); in ext4_statfs_project()
6181 if (limit && buf->f_files > limit) { in ext4_statfs_project()
6182 buf->f_files = limit; in ext4_statfs_project()
6183 buf->f_ffree = in ext4_statfs_project()
6184 (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? in ext4_statfs_project()
6185 (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; in ext4_statfs_project()
6188 spin_unlock(&dquot->dq_dqb_lock); in ext4_statfs_project()
6196 struct super_block *sb = dentry->d_sb; in ext4_statfs()
6198 struct ext4_super_block *es = sbi->s_es; in ext4_statfs() local
6202 resv_blocks = EXT4_C2B(sbi, atomic64_read(&sbi->s_resv_clusters)); in ext4_statfs()
6205 overhead = sbi->s_overhead; in ext4_statfs()
6207 buf->f_type = EXT4_SUPER_MAGIC; in ext4_statfs()
6208 buf->f_bsize = sb->s_blocksize; in ext4_statfs()
6209 buf->f_blocks = ext4_blocks_count(es) - EXT4_C2B(sbi, overhead); in ext4_statfs()
6210 bfree = percpu_counter_sum_positive(&sbi->s_freeclusters_counter) - in ext4_statfs()
6211 percpu_counter_sum_positive(&sbi->s_dirtyclusters_counter); in ext4_statfs()
6213 buf->f_bfree = EXT4_C2B(sbi, max_t(s64, bfree, 0)); in ext4_statfs()
6214 buf->f_bavail = buf->f_bfree - in ext4_statfs()
6215 (ext4_r_blocks_count(es) + resv_blocks); in ext4_statfs()
6216 if (buf->f_bfree < (ext4_r_blocks_count(es) + resv_blocks)) in ext4_statfs()
6217 buf->f_bavail = 0; in ext4_statfs()
6218 buf->f_files = le32_to_cpu(es->s_inodes_count); in ext4_statfs()
6219 buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter); in ext4_statfs()
6220 buf->f_namelen = EXT4_NAME_LEN; in ext4_statfs()
6221 fsid = le64_to_cpup((void *)es->s_uuid) ^ in ext4_statfs()
6222 le64_to_cpup((void *)es->s_uuid + sizeof(u64)); in ext4_statfs()
6223 buf->f_fsid = u64_to_fsid(fsid); in ext4_statfs()
6226 if (ext4_test_inode_flag(dentry->d_inode, EXT4_INODE_PROJINHERIT) && in ext4_statfs()
6228 ext4_statfs_project(sb, EXT4_I(dentry->d_inode)->i_projid, buf); in ext4_statfs()
6242 return sb_dqopt(dquot->dq_sb)->files[dquot->dq_id.type]; in dquot_to_inode()
6253 EXT4_QUOTA_TRANS_BLOCKS(dquot->dq_sb)); in ext4_write_dquot()
6269 EXT4_QUOTA_INIT_BLOCKS(dquot->dq_sb)); in ext4_acquire_dquot()
6285 EXT4_QUOTA_DEL_BLOCKS(dquot->dq_sb)); in ext4_release_dquot()
6300 struct super_block *sb = dquot->dq_sb; in ext4_mark_dquot_dirty()
6305 sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) { in ext4_mark_dquot_dirty()
6330 * Turn on quotas during mount time - we need to find
6336 EXT4_SB(sb)->s_jquota_fmt, type); in ext4_quota_on_mount()
6344 * *exactly* the same as the argument to init_rwsem() --- in in lockdep_set_quota_inode()
6345 * this case, in init_once() --- or lockdep gets unhappy in lockdep_set_quota_inode()
6350 lockdep_set_subclass(&ei->i_data_sem, subclass); in lockdep_set_quota_inode()
6362 return -EINVAL; in ext4_quota_on()
6365 if (path->dentry->d_sb != sb) in ext4_quota_on()
6366 return -EXDEV; in ext4_quota_on()
6369 if (IS_NOQUOTA(d_inode(path->dentry))) in ext4_quota_on()
6370 return -EBUSY; in ext4_quota_on()
6373 if (EXT4_SB(sb)->s_qf_names[type]) { in ext4_quota_on()
6375 if (path->dentry->d_parent != sb->s_root) in ext4_quota_on()
6379 sb_dqopt(sb)->flags |= DQUOT_NOLIST_DIRTY; in ext4_quota_on()
6385 sb_dqopt(sb)->flags &= ~DQUOT_NOLIST_DIRTY; in ext4_quota_on()
6392 if (EXT4_SB(sb)->s_journal && in ext4_quota_on()
6393 ext4_should_journal_data(d_inode(path->dentry))) { in ext4_quota_on()
6398 jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal); in ext4_quota_on()
6399 err = jbd2_journal_flush(EXT4_SB(sb)->s_journal); in ext4_quota_on()
6400 jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal); in ext4_quota_on()
6405 lockdep_set_quota_inode(path->dentry->d_inode, I_DATA_SEM_QUOTA); in ext4_quota_on()
6408 struct inode *inode = d_inode(path->dentry); in ext4_quota_on()
6420 EXT4_I(inode)->i_flags |= EXT4_NOATIME_FL | EXT4_IMMUTABLE_FL; in ext4_quota_on()
6431 lockdep_set_quota_inode(path->dentry->d_inode, in ext4_quota_on()
6456 le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum), in ext4_quota_enable()
6457 le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum), in ext4_quota_enable()
6458 le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum) in ext4_quota_enable()
6464 return -EPERM; in ext4_quota_enable()
6469 return -EUCLEAN; in ext4_quota_enable()
6480 qf_inode->i_flags |= S_NOQUOTA; in ext4_quota_enable()
6490 /* Enable usage tracking for all quota types. */
6495 le32_to_cpu(EXT4_SB(sb)->s_es->s_usr_quota_inum), in ext4_enable_quotas()
6496 le32_to_cpu(EXT4_SB(sb)->s_es->s_grp_quota_inum), in ext4_enable_quotas()
6497 le32_to_cpu(EXT4_SB(sb)->s_es->s_prj_quota_inum) in ext4_enable_quotas()
6505 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; in ext4_enable_quotas()
6513 "Failed to enable quota tracking " in ext4_enable_quotas()
6517 for (type--; type >= 0; type--) { in ext4_enable_quotas()
6520 inode = sb_dqopt(sb)->files[type]; in ext4_enable_quotas()
6540 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_off()
6567 EXT4_I(inode)->i_flags &= ~(EXT4_NOATIME_FL | EXT4_IMMUTABLE_FL); in ext4_quota_off()
6569 inode->i_mtime = inode->i_ctime = current_time(inode); in ext4_quota_off()
6582 /* Read data from quotafile - avoid pagecache and such because we cannot afford
6589 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_read()
6591 int offset = off & (sb->s_blocksize - 1); in ext4_quota_read()
6600 len = i_size-off; in ext4_quota_read()
6603 tocopy = sb->s_blocksize - offset < toread ? in ext4_quota_read()
6604 sb->s_blocksize - offset : toread; in ext4_quota_read()
6611 memcpy(data, bh->b_data+offset, tocopy); in ext4_quota_read()
6614 toread -= tocopy; in ext4_quota_read()
6626 struct inode *inode = sb_dqopt(sb)->files[type]; in ext4_quota_write()
6628 int err = 0, err2 = 0, offset = off & (sb->s_blocksize - 1); in ext4_quota_write()
6637 return -EIO; in ext4_quota_write()
6643 if (sb->s_blocksize - offset < len) { in ext4_quota_write()
6647 return -EIO; in ext4_quota_write()
6654 } while (PTR_ERR(bh) == -ENOSPC && in ext4_quota_write()
6655 ext4_should_retry_alloc(inode->i_sb, &retries)); in ext4_quota_write()
6667 memcpy(bh->b_data+offset, data, len); in ext4_quota_write()
6668 flush_dcache_page(bh->b_page); in ext4_quota_write()
6673 if (inode->i_size < off + len) { in ext4_quota_write()
6675 EXT4_I(inode)->i_disksize = inode->i_size; in ext4_quota_write()
6696 "EXT4-fs: Unable to register as ext2 (%d)\n", err); in register_as_ext2()
6725 "EXT4-fs: Unable to register as ext3 (%d)\n", err); in register_as_ext3()
6766 /* Build-time check for flags consistency */ in ext4_init_fs()