Lines Matching refs:fs_info
56 struct btrfs_fs_info *fs_info);
58 static int btrfs_destroy_marked_extents(struct btrfs_fs_info *fs_info,
61 static int btrfs_destroy_pinned_extent(struct btrfs_fs_info *fs_info,
63 static int btrfs_cleanup_transaction(struct btrfs_fs_info *fs_info);
64 static void btrfs_error_commit_super(struct btrfs_fs_info *fs_info);
100 static void btrfs_free_csum_hash(struct btrfs_fs_info *fs_info)
102 if (fs_info->csum_shash)
103 crypto_free_shash(fs_info->csum_shash);
211 struct btrfs_fs_info *fs_info = buf->fs_info;
212 const int num_pages = fs_info->nodesize >> PAGE_SHIFT;
213 SHASH_DESC_ON_STACK(shash, fs_info->csum_shash);
217 shash->tfm = fs_info->csum_shash;
263 btrfs_err_rl(eb->fs_info,
304 static int btrfs_check_super_csum(struct btrfs_fs_info *fs_info,
310 SHASH_DESC_ON_STACK(shash, fs_info->csum_shash);
312 shash->tfm = fs_info->csum_shash;
331 struct btrfs_fs_info *fs_info = eb->fs_info;
340 btrfs_err(fs_info,
353 * generation <= fs_info->last_trans_committed.
355 if (btrfs_header_generation(eb) > fs_info->last_trans_committed)
360 btrfs_err(fs_info,
376 btrfs_err(fs_info,
398 struct btrfs_fs_info *fs_info = eb->fs_info;
406 io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree;
421 num_copies = btrfs_num_copies(fs_info,
450 static int csum_dirty_buffer(struct btrfs_fs_info *fs_info, struct page *page)
455 u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
473 ASSERT(memcmp_extent_buffer(eb, fs_info->fs_devices->metadata_uuid,
486 btrfs_err(fs_info,
499 struct btrfs_fs_info *fs_info = eb->fs_info;
500 struct btrfs_fs_devices *fs_devices = fs_info->fs_devices, *seed_devs;
511 if (btrfs_fs_incompat(fs_info, METADATA_UUID))
533 struct btrfs_fs_info *fs_info;
543 fs_info = eb->fs_info;
544 csum_size = btrfs_super_csum_size(fs_info->super_copy);
563 btrfs_err_rl(fs_info, "bad tree block start, want %llu have %llu",
569 btrfs_err_rl(fs_info, "bad fsid on block %llu",
576 btrfs_err(fs_info, "bad tree block level %d on %llu",
591 btrfs_warn_rl(fs_info,
593 fs_info->sb->s_id, eb->start,
617 btrfs_err(fs_info,
642 struct btrfs_fs_info *fs_info;
645 fs_info = end_io_wq->info;
650 wq = fs_info->endio_meta_write_workers;
652 wq = fs_info->endio_freespace_worker;
654 wq = fs_info->endio_raid56_workers;
656 wq = fs_info->endio_write_workers;
659 wq = fs_info->endio_raid56_workers;
661 wq = fs_info->endio_meta_workers;
663 wq = fs_info->endio_workers;
748 blk_status_t btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
774 btrfs_queue_work(fs_info->workers, &async->work);
788 ret = csum_dirty_buffer(root->fs_info, bvec->bv_page);
806 static int check_async_write(struct btrfs_fs_info *fs_info,
811 if (test_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags))
819 struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
820 int async = check_async_write(fs_info, BTRFS_I(inode));
828 ret = btrfs_bio_wq_end_io(fs_info, bio,
832 ret = btrfs_map_bio(fs_info, bio, mirror_num);
837 ret = btrfs_map_bio(fs_info, bio, mirror_num);
843 ret = btrfs_wq_submit_bio(fs_info, bio, mirror_num, 0,
883 struct btrfs_fs_info *fs_info;
891 fs_info = BTRFS_I(mapping->host)->root->fs_info;
893 ret = __percpu_counter_compare(&fs_info->dirty_metadata_bytes,
895 fs_info->dirty_metadata_batch);
918 btrfs_warn(BTRFS_I(page->mapping->host)->root->fs_info,
950 void readahead_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr)
955 buf = btrfs_find_create_tree_block(fs_info, bytenr);
967 struct btrfs_fs_info *fs_info,
970 if (btrfs_is_testing(fs_info))
971 return alloc_test_extent_buffer(fs_info, bytenr);
972 return alloc_extent_buffer(fs_info, bytenr);
983 struct extent_buffer *read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
990 buf = btrfs_find_create_tree_block(fs_info, bytenr);
1006 struct btrfs_fs_info *fs_info = buf->fs_info;
1008 fs_info->running_transaction->transid) {
1012 percpu_counter_add_batch(&fs_info->dirty_metadata_bytes,
1014 fs_info->dirty_metadata_batch);
1022 static void __setup_root(struct btrfs_root *root, struct btrfs_fs_info *fs_info,
1025 bool dummy = test_bit(BTRFS_FS_STATE_DUMMY_FS_INFO, &fs_info->fs_state);
1026 root->fs_info = fs_info;
1077 extent_io_tree_init(fs_info, &root->dirty_log_pages,
1079 extent_io_tree_init(fs_info, &root->log_csum_range,
1093 spin_lock(&fs_info->fs_roots_radix_lock);
1094 list_add_tail(&root->leak_list, &fs_info->allocated_roots);
1095 spin_unlock(&fs_info->fs_roots_radix_lock);
1099 static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info,
1104 __setup_root(root, fs_info, objectid);
1110 struct btrfs_root *btrfs_alloc_dummy_root(struct btrfs_fs_info *fs_info)
1114 if (!fs_info)
1117 root = btrfs_alloc_root(fs_info, BTRFS_ROOT_TREE_OBJECTID, GFP_KERNEL);
1131 struct btrfs_fs_info *fs_info = trans->fs_info;
1133 struct btrfs_root *tree_root = fs_info->tree_root;
1144 root = btrfs_alloc_root(fs_info, objectid, GFP_KERNEL);
1202 struct btrfs_fs_info *fs_info)
1207 root = btrfs_alloc_root(fs_info, BTRFS_TREE_LOG_OBJECTID, GFP_NOFS);
1240 struct btrfs_fs_info *fs_info)
1244 log_root = alloc_log_tree(trans, fs_info);
1247 WARN_ON(fs_info->log_root_tree);
1248 fs_info->log_root_tree = log_root;
1255 struct btrfs_fs_info *fs_info = root->fs_info;
1259 log_root = alloc_log_tree(trans, fs_info);
1271 fs_info->nodesize);
1289 struct btrfs_fs_info *fs_info = tree_root->fs_info;
1294 root = btrfs_alloc_root(fs_info, key->objectid, GFP_NOFS);
1308 root->node = read_tree_block(fs_info,
1412 static struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info,
1417 spin_lock(&fs_info->fs_roots_radix_lock);
1418 root = radix_tree_lookup(&fs_info->fs_roots_radix,
1422 spin_unlock(&fs_info->fs_roots_radix_lock);
1426 static struct btrfs_root *btrfs_get_global_root(struct btrfs_fs_info *fs_info,
1430 return btrfs_grab_root(fs_info->tree_root);
1432 return btrfs_grab_root(fs_info->extent_root);
1434 return btrfs_grab_root(fs_info->chunk_root);
1436 return btrfs_grab_root(fs_info->dev_root);
1438 return btrfs_grab_root(fs_info->csum_root);
1440 return btrfs_grab_root(fs_info->quota_root) ?
1441 fs_info->quota_root : ERR_PTR(-ENOENT);
1443 return btrfs_grab_root(fs_info->uuid_root) ?
1444 fs_info->uuid_root : ERR_PTR(-ENOENT);
1446 return btrfs_grab_root(fs_info->free_space_root) ?
1447 fs_info->free_space_root : ERR_PTR(-ENOENT);
1451 int btrfs_insert_fs_root(struct btrfs_fs_info *fs_info,
1460 spin_lock(&fs_info->fs_roots_radix_lock);
1461 ret = radix_tree_insert(&fs_info->fs_roots_radix,
1468 spin_unlock(&fs_info->fs_roots_radix_lock);
1474 void btrfs_check_leaked_roots(struct btrfs_fs_info *fs_info)
1479 while (!list_empty(&fs_info->allocated_roots)) {
1482 root = list_first_entry(&fs_info->allocated_roots,
1484 btrfs_err(fs_info, "leaked root %s refcount %d",
1494 void btrfs_free_fs_info(struct btrfs_fs_info *fs_info)
1496 percpu_counter_destroy(&fs_info->dirty_metadata_bytes);
1497 percpu_counter_destroy(&fs_info->delalloc_bytes);
1498 percpu_counter_destroy(&fs_info->dio_bytes);
1499 percpu_counter_destroy(&fs_info->dev_replace.bio_counter);
1500 btrfs_free_csum_hash(fs_info);
1501 btrfs_free_stripe_hash_table(fs_info);
1502 btrfs_free_ref_cache(fs_info);
1503 kfree(fs_info->balance_ctl);
1504 kfree(fs_info->delayed_root);
1505 btrfs_put_root(fs_info->extent_root);
1506 btrfs_put_root(fs_info->tree_root);
1507 btrfs_put_root(fs_info->chunk_root);
1508 btrfs_put_root(fs_info->dev_root);
1509 btrfs_put_root(fs_info->csum_root);
1510 btrfs_put_root(fs_info->quota_root);
1511 btrfs_put_root(fs_info->uuid_root);
1512 btrfs_put_root(fs_info->free_space_root);
1513 btrfs_put_root(fs_info->fs_root);
1514 btrfs_put_root(fs_info->data_reloc_root);
1515 btrfs_check_leaked_roots(fs_info);
1516 btrfs_extent_buffer_leak_debug_check(fs_info);
1517 kfree(fs_info->super_copy);
1518 kfree(fs_info->super_for_commit);
1519 kvfree(fs_info);
1526 * For essential trees like root/extent tree, we grab it from fs_info directly.
1541 static struct btrfs_root *btrfs_get_root_ref(struct btrfs_fs_info *fs_info,
1550 root = btrfs_get_global_root(fs_info, objectid);
1554 root = btrfs_lookup_fs_root(fs_info, objectid);
1577 root = btrfs_read_tree_root(fs_info->tree_root, &key);
1599 ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);
1606 ret = btrfs_insert_fs_root(fs_info, root);
1635 struct btrfs_root *btrfs_get_fs_root(struct btrfs_fs_info *fs_info,
1638 return btrfs_get_root_ref(fs_info, objectid, 0, check_ref);
1649 struct btrfs_root *btrfs_get_new_fs_root(struct btrfs_fs_info *fs_info,
1652 return btrfs_get_root_ref(fs_info, objectid, anon_dev, true);
1657 * @fs_info: the fs_info
1669 struct btrfs_root *btrfs_get_fs_root_commit_root(struct btrfs_fs_info *fs_info,
1684 root = btrfs_get_global_root(fs_info, objectid);
1688 root = btrfs_lookup_fs_root(fs_info, objectid);
1695 root = read_tree_root_path(fs_info->tree_root, path, &key);
1723 struct btrfs_fs_info *fs_info = root->fs_info;
1729 set_bit(BTRFS_FS_CLEANER_RUNNING, &fs_info->flags);
1732 if (btrfs_need_cleaner_sleep(fs_info))
1739 if (!test_bit(BTRFS_FS_OPEN, &fs_info->flags))
1742 if (!mutex_trylock(&fs_info->cleaner_mutex))
1749 if (btrfs_need_cleaner_sleep(fs_info)) {
1750 mutex_unlock(&fs_info->cleaner_mutex);
1754 btrfs_run_delayed_iputs(fs_info);
1757 mutex_unlock(&fs_info->cleaner_mutex);
1763 btrfs_run_defrag_inodes(fs_info);
1766 * Acquires fs_info->delete_unused_bgs_mutex to avoid racing
1768 * acquires fs_info->cleaner_mutex (btrfs_relocate_block_group)
1769 * after acquiring fs_info->delete_unused_bgs_mutex. So we
1770 * can't hold, nor need to, fs_info->cleaner_mutex when deleting
1773 btrfs_delete_unused_bgs(fs_info);
1775 clear_bit(BTRFS_FS_CLEANER_RUNNING, &fs_info->flags);
1791 struct btrfs_fs_info *fs_info = root->fs_info;
1801 delay = HZ * fs_info->commit_interval;
1802 mutex_lock(&fs_info->transaction_kthread_mutex);
1804 spin_lock(&fs_info->trans_lock);
1805 cur = fs_info->running_transaction;
1807 spin_unlock(&fs_info->trans_lock);
1814 now - cur->start_time < fs_info->commit_interval)) {
1815 spin_unlock(&fs_info->trans_lock);
1820 spin_unlock(&fs_info->trans_lock);
1835 wake_up_process(fs_info->cleaner_kthread);
1836 mutex_unlock(&fs_info->transaction_kthread_mutex);
1839 &fs_info->fs_state)))
1840 btrfs_cleanup_transaction(fs_info);
1842 (!btrfs_transaction_blocked(fs_info) ||
1959 * fs_info - filesystem whose backup roots need to be read
1964 static int read_backup_root(struct btrfs_fs_info *fs_info, u8 priority)
1966 int backup_index = find_newest_super_backup(fs_info);
1967 struct btrfs_super_block *super = fs_info->super_copy;
2000 static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
2002 btrfs_destroy_workqueue(fs_info->fixup_workers);
2003 btrfs_destroy_workqueue(fs_info->delalloc_workers);
2004 btrfs_destroy_workqueue(fs_info->workers);
2005 btrfs_destroy_workqueue(fs_info->endio_workers);
2006 btrfs_destroy_workqueue(fs_info->endio_raid56_workers);
2007 btrfs_destroy_workqueue(fs_info->rmw_workers);
2008 btrfs_destroy_workqueue(fs_info->endio_write_workers);
2009 btrfs_destroy_workqueue(fs_info->endio_freespace_worker);
2010 btrfs_destroy_workqueue(fs_info->delayed_workers);
2011 btrfs_destroy_workqueue(fs_info->caching_workers);
2012 btrfs_destroy_workqueue(fs_info->readahead_workers);
2013 btrfs_destroy_workqueue(fs_info->flush_workers);
2014 btrfs_destroy_workqueue(fs_info->qgroup_rescan_workers);
2015 if (fs_info->discard_ctl.discard_workers)
2016 destroy_workqueue(fs_info->discard_ctl.discard_workers);
2022 btrfs_destroy_workqueue(fs_info->endio_meta_workers);
2023 btrfs_destroy_workqueue(fs_info->endio_meta_write_workers);
2068 spin_lock(&root->fs_info->fs_roots_radix_lock);
2070 spin_unlock(&root->fs_info->fs_roots_radix_lock);
2076 void btrfs_free_fs_roots(struct btrfs_fs_info *fs_info)
2082 while (!list_empty(&fs_info->dead_roots)) {
2083 gang[0] = list_entry(fs_info->dead_roots.next,
2088 btrfs_drop_and_free_fs_root(fs_info, gang[0]);
2093 ret = radix_tree_gang_lookup(&fs_info->fs_roots_radix,
2099 btrfs_drop_and_free_fs_root(fs_info, gang[i]);
2103 static void btrfs_init_scrub(struct btrfs_fs_info *fs_info)
2105 mutex_init(&fs_info->scrub_lock);
2106 atomic_set(&fs_info->scrubs_running, 0);
2107 atomic_set(&fs_info->scrub_pause_req, 0);
2108 atomic_set(&fs_info->scrubs_paused, 0);
2109 atomic_set(&fs_info->scrub_cancel_req, 0);
2110 init_waitqueue_head(&fs_info->scrub_pause_wait);
2111 refcount_set(&fs_info->scrub_workers_refcnt, 0);
2114 static void btrfs_init_balance(struct btrfs_fs_info *fs_info)
2116 spin_lock_init(&fs_info->balance_lock);
2117 mutex_init(&fs_info->balance_mutex);
2118 atomic_set(&fs_info->balance_pause_req, 0);
2119 atomic_set(&fs_info->balance_cancel_req, 0);
2120 fs_info->balance_ctl = NULL;
2121 init_waitqueue_head(&fs_info->balance_wait_q);
2124 static void btrfs_init_btree_inode(struct btrfs_fs_info *fs_info)
2126 struct inode *inode = fs_info->btree_inode;
2139 extent_io_tree_init(fs_info, &BTRFS_I(inode)->io_tree,
2144 BTRFS_I(inode)->root = btrfs_grab_root(fs_info->tree_root);
2150 static void btrfs_init_dev_replace_locks(struct btrfs_fs_info *fs_info)
2152 mutex_init(&fs_info->dev_replace.lock_finishing_cancel_unmount);
2153 init_rwsem(&fs_info->dev_replace.rwsem);
2154 init_waitqueue_head(&fs_info->dev_replace.replace_wait);
2157 static void btrfs_init_qgroup(struct btrfs_fs_info *fs_info)
2159 spin_lock_init(&fs_info->qgroup_lock);
2160 mutex_init(&fs_info->qgroup_ioctl_lock);
2161 fs_info->qgroup_tree = RB_ROOT;
2162 INIT_LIST_HEAD(&fs_info->dirty_qgroups);
2163 fs_info->qgroup_seq = 1;
2164 fs_info->qgroup_ulist = NULL;
2165 fs_info->qgroup_rescan_running = false;
2166 mutex_init(&fs_info->qgroup_rescan_lock);
2169 static int btrfs_init_workqueues(struct btrfs_fs_info *fs_info,
2172 u32 max_active = fs_info->thread_pool_size;
2175 fs_info->workers =
2176 btrfs_alloc_workqueue(fs_info, "worker",
2179 fs_info->delalloc_workers =
2180 btrfs_alloc_workqueue(fs_info, "delalloc",
2183 fs_info->flush_workers =
2184 btrfs_alloc_workqueue(fs_info, "flush_delalloc",
2187 fs_info->caching_workers =
2188 btrfs_alloc_workqueue(fs_info, "cache", flags, max_active, 0);
2190 fs_info->fixup_workers =
2191 btrfs_alloc_workqueue(fs_info, "fixup", flags, 1, 0);
2197 fs_info->endio_workers =
2198 btrfs_alloc_workqueue(fs_info, "endio", flags, max_active, 4);
2199 fs_info->endio_meta_workers =
2200 btrfs_alloc_workqueue(fs_info, "endio-meta", flags,
2202 fs_info->endio_meta_write_workers =
2203 btrfs_alloc_workqueue(fs_info, "endio-meta-write", flags,
2205 fs_info->endio_raid56_workers =
2206 btrfs_alloc_workqueue(fs_info, "endio-raid56", flags,
2208 fs_info->rmw_workers =
2209 btrfs_alloc_workqueue(fs_info, "rmw", flags, max_active, 2);
2210 fs_info->endio_write_workers =
2211 btrfs_alloc_workqueue(fs_info, "endio-write", flags,
2213 fs_info->endio_freespace_worker =
2214 btrfs_alloc_workqueue(fs_info, "freespace-write", flags,
2216 fs_info->delayed_workers =
2217 btrfs_alloc_workqueue(fs_info, "delayed-meta", flags,
2219 fs_info->readahead_workers =
2220 btrfs_alloc_workqueue(fs_info, "readahead", flags,
2222 fs_info->qgroup_rescan_workers =
2223 btrfs_alloc_workqueue(fs_info, "qgroup-rescan", flags, 1, 0);
2224 fs_info->discard_ctl.discard_workers =
2227 if (!(fs_info->workers && fs_info->delalloc_workers &&
2228 fs_info->flush_workers &&
2229 fs_info->endio_workers && fs_info->endio_meta_workers &&
2230 fs_info->endio_meta_write_workers &&
2231 fs_info->endio_write_workers && fs_info->endio_raid56_workers &&
2232 fs_info->endio_freespace_worker && fs_info->rmw_workers &&
2233 fs_info->caching_workers && fs_info->readahead_workers &&
2234 fs_info->fixup_workers && fs_info->delayed_workers &&
2235 fs_info->qgroup_rescan_workers &&
2236 fs_info->discard_ctl.discard_workers)) {
2243 static int btrfs_init_csum_hash(struct btrfs_fs_info *fs_info, u16 csum_type)
2251 btrfs_err(fs_info, "error allocating %s hash for checksum",
2256 fs_info->csum_shash = csum_shash;
2266 set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags);
2269 set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags);
2275 btrfs_info(fs_info, "using %s (%s) checksum algorithm",
2281 static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
2286 struct btrfs_super_block *disk_super = fs_info->super_copy;
2291 btrfs_warn(fs_info, "log replay required on RO media");
2295 log_tree_root = btrfs_alloc_root(fs_info, BTRFS_TREE_LOG_OBJECTID,
2300 log_tree_root->node = read_tree_block(fs_info, bytenr,
2301 fs_info->generation + 1,
2304 btrfs_warn(fs_info, "failed to read log tree");
2310 btrfs_err(fs_info, "failed to read log tree");
2317 btrfs_handle_fs_error(fs_info, ret,
2323 if (sb_rdonly(fs_info->sb)) {
2324 ret = btrfs_commit_super(fs_info);
2332 static int btrfs_read_roots(struct btrfs_fs_info *fs_info)
2334 struct btrfs_root *tree_root = fs_info->tree_root;
2339 BUG_ON(!fs_info->tree_root);
2351 fs_info->extent_root = root;
2360 fs_info->dev_root = root;
2361 btrfs_init_devices_late(fs_info);
2370 fs_info->csum_root = root;
2376 root = btrfs_get_fs_root(tree_root->fs_info,
2383 fs_info->data_reloc_root = root;
2389 set_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
2390 fs_info->quota_root = root;
2401 fs_info->uuid_root = root;
2404 if (btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) {
2412 fs_info->free_space_root = root;
2417 btrfs_warn(fs_info, "failed to read root (objectid=%llu): %d",
2432 static int validate_super(struct btrfs_fs_info *fs_info,
2440 btrfs_err(fs_info, "no valid FS found");
2444 btrfs_err(fs_info, "unrecognized or unsupported super flag: %llu",
2449 btrfs_err(fs_info, "tree_root level too big: %d >= %d",
2454 btrfs_err(fs_info, "chunk_root level too big: %d >= %d",
2459 btrfs_err(fs_info, "log_root level too big: %d >= %d",
2470 btrfs_err(fs_info, "invalid sectorsize %llu", sectorsize);
2475 btrfs_err(fs_info,
2482 btrfs_err(fs_info, "invalid nodesize %llu", nodesize);
2486 btrfs_err(fs_info, "invalid leafsize %u, should be %llu",
2493 btrfs_warn(fs_info, "tree_root block unaligned: %llu",
2498 btrfs_warn(fs_info, "chunk_root block unaligned: %llu",
2503 btrfs_warn(fs_info, "log_root block unaligned: %llu",
2508 if (memcmp(fs_info->fs_devices->fsid, sb->fsid, BTRFS_FSID_SIZE) != 0) {
2509 btrfs_err(fs_info,
2511 sb->fsid, fs_info->fs_devices->fsid);
2515 if (memcmp(fs_info->fs_devices->metadata_uuid, btrfs_sb_fsid_ptr(sb),
2517 btrfs_err(fs_info,
2519 btrfs_sb_fsid_ptr(sb), fs_info->fs_devices->metadata_uuid);
2523 if (memcmp(fs_info->fs_devices->metadata_uuid, sb->dev_item.fsid,
2525 btrfs_err(fs_info,
2527 fs_info->fs_devices->metadata_uuid, sb->dev_item.fsid);
2536 btrfs_err(fs_info, "bytes_used is too small %llu",
2541 btrfs_err(fs_info, "invalid stripesize %u",
2546 btrfs_warn(fs_info, "suspicious number of devices: %llu",
2549 btrfs_err(fs_info, "number of devices is 0");
2555 btrfs_err(fs_info, "super offset mismatch %llu != %u",
2565 btrfs_err(fs_info, "system chunk array too big %u > %u",
2572 btrfs_err(fs_info, "system chunk array too small %u < %zu",
2584 btrfs_warn(fs_info,
2590 btrfs_warn(fs_info,
2603 static int btrfs_validate_mount_super(struct btrfs_fs_info *fs_info)
2605 return validate_super(fs_info, fs_info->super_copy, 0);
2614 static int btrfs_validate_write_super(struct btrfs_fs_info *fs_info,
2619 ret = validate_super(fs_info, sb, -1);
2624 btrfs_err(fs_info, "invalid csum type, has %u want %u",
2630 btrfs_err(fs_info,
2638 btrfs_err(fs_info,
2643 static int __cold init_tree_roots(struct btrfs_fs_info *fs_info)
2645 int backup_index = find_newest_super_backup(fs_info);
2646 struct btrfs_super_block *sb = fs_info->super_copy;
2647 struct btrfs_root *tree_root = fs_info->tree_root;
2661 if (!btrfs_test_opt(fs_info, USEBACKUPROOT))
2664 free_root_pointers(fs_info, 0);
2673 btrfs_set_opt(fs_info->mount_opt, CLEAR_CACHE);
2675 ret = read_backup_root(fs_info, i);
2682 tree_root->node = read_tree_block(fs_info, btrfs_super_root(sb),
2688 btrfs_warn(fs_info, "couldn't read tree root");
2694 btrfs_warn(fs_info, "error while reading tree root");
2715 ret = btrfs_read_roots(fs_info);
2722 fs_info->generation = generation;
2723 fs_info->last_trans_committed = generation;
2727 fs_info->backup_root_index = 0;
2729 fs_info->backup_root_index = backup_index + 1;
2730 fs_info->backup_root_index %= BTRFS_NUM_BACKUP_ROOTS;
2738 void btrfs_init_fs_info(struct btrfs_fs_info *fs_info)
2740 INIT_RADIX_TREE(&fs_info->fs_roots_radix, GFP_ATOMIC);
2741 INIT_RADIX_TREE(&fs_info->buffer_radix, GFP_ATOMIC);
2742 INIT_LIST_HEAD(&fs_info->trans_list);
2743 INIT_LIST_HEAD(&fs_info->dead_roots);
2744 INIT_LIST_HEAD(&fs_info->delayed_iputs);
2745 INIT_LIST_HEAD(&fs_info->delalloc_roots);
2746 INIT_LIST_HEAD(&fs_info->caching_block_groups);
2747 spin_lock_init(&fs_info->delalloc_root_lock);
2748 spin_lock_init(&fs_info->trans_lock);
2749 spin_lock_init(&fs_info->fs_roots_radix_lock);
2750 spin_lock_init(&fs_info->delayed_iput_lock);
2751 spin_lock_init(&fs_info->defrag_inodes_lock);
2752 spin_lock_init(&fs_info->super_lock);
2753 spin_lock_init(&fs_info->buffer_lock);
2754 spin_lock_init(&fs_info->unused_bgs_lock);
2755 rwlock_init(&fs_info->tree_mod_log_lock);
2756 mutex_init(&fs_info->unused_bg_unpin_mutex);
2757 mutex_init(&fs_info->delete_unused_bgs_mutex);
2758 mutex_init(&fs_info->reloc_mutex);
2759 mutex_init(&fs_info->delalloc_root_mutex);
2760 seqlock_init(&fs_info->profiles_lock);
2762 INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots);
2763 INIT_LIST_HEAD(&fs_info->space_info);
2764 INIT_LIST_HEAD(&fs_info->tree_mod_seq_list);
2765 INIT_LIST_HEAD(&fs_info->unused_bgs);
2767 INIT_LIST_HEAD(&fs_info->allocated_roots);
2768 INIT_LIST_HEAD(&fs_info->allocated_ebs);
2769 spin_lock_init(&fs_info->eb_leak_lock);
2771 extent_map_tree_init(&fs_info->mapping_tree);
2772 btrfs_init_block_rsv(&fs_info->global_block_rsv,
2774 btrfs_init_block_rsv(&fs_info->trans_block_rsv, BTRFS_BLOCK_RSV_TRANS);
2775 btrfs_init_block_rsv(&fs_info->chunk_block_rsv, BTRFS_BLOCK_RSV_CHUNK);
2776 btrfs_init_block_rsv(&fs_info->empty_block_rsv, BTRFS_BLOCK_RSV_EMPTY);
2777 btrfs_init_block_rsv(&fs_info->delayed_block_rsv,
2779 btrfs_init_block_rsv(&fs_info->delayed_refs_rsv,
2782 atomic_set(&fs_info->async_delalloc_pages, 0);
2783 atomic_set(&fs_info->defrag_running, 0);
2784 atomic_set(&fs_info->reada_works_cnt, 0);
2785 atomic_set(&fs_info->nr_delayed_iputs, 0);
2786 atomic64_set(&fs_info->tree_mod_seq, 0);
2787 fs_info->max_inline = BTRFS_DEFAULT_MAX_INLINE;
2788 fs_info->metadata_ratio = 0;
2789 fs_info->defrag_inodes = RB_ROOT;
2790 atomic64_set(&fs_info->free_chunk_space, 0);
2791 fs_info->tree_mod_log = RB_ROOT;
2792 fs_info->commit_interval = BTRFS_DEFAULT_COMMIT_INTERVAL;
2793 fs_info->avg_delayed_ref_runtime = NSEC_PER_SEC >> 6; /* div by 64 */
2795 INIT_RADIX_TREE(&fs_info->reada_tree, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
2796 spin_lock_init(&fs_info->reada_lock);
2797 btrfs_init_ref_verify(fs_info);
2799 fs_info->thread_pool_size = min_t(unsigned long,
2802 INIT_LIST_HEAD(&fs_info->ordered_roots);
2803 spin_lock_init(&fs_info->ordered_root_lock);
2805 btrfs_init_scrub(fs_info);
2807 fs_info->check_integrity_print_mask = 0;
2809 btrfs_init_balance(fs_info);
2810 btrfs_init_async_reclaim_work(fs_info);
2812 spin_lock_init(&fs_info->block_group_cache_lock);
2813 fs_info->block_group_cache_tree = RB_ROOT;
2814 fs_info->first_logical_byte = (u64)-1;
2816 extent_io_tree_init(fs_info, &fs_info->excluded_extents,
2818 set_bit(BTRFS_FS_BARRIER, &fs_info->flags);
2820 mutex_init(&fs_info->ordered_operations_mutex);
2821 mutex_init(&fs_info->tree_log_mutex);
2822 mutex_init(&fs_info->chunk_mutex);
2823 mutex_init(&fs_info->transaction_kthread_mutex);
2824 mutex_init(&fs_info->cleaner_mutex);
2825 mutex_init(&fs_info->ro_block_group_mutex);
2826 init_rwsem(&fs_info->commit_root_sem);
2827 init_rwsem(&fs_info->cleanup_work_sem);
2828 init_rwsem(&fs_info->subvol_sem);
2829 sema_init(&fs_info->uuid_tree_rescan_sem, 1);
2831 btrfs_init_dev_replace_locks(fs_info);
2832 btrfs_init_qgroup(fs_info);
2833 btrfs_discard_init(fs_info);
2835 btrfs_init_free_cluster(&fs_info->meta_alloc_cluster);
2836 btrfs_init_free_cluster(&fs_info->data_alloc_cluster);
2838 init_waitqueue_head(&fs_info->transaction_throttle);
2839 init_waitqueue_head(&fs_info->transaction_wait);
2840 init_waitqueue_head(&fs_info->transaction_blocked_wait);
2841 init_waitqueue_head(&fs_info->async_submit_wait);
2842 init_waitqueue_head(&fs_info->delayed_iputs_wait);
2845 fs_info->nodesize = 4096;
2846 fs_info->sectorsize = 4096;
2847 fs_info->stripesize = 4096;
2849 spin_lock_init(&fs_info->swapfile_pins_lock);
2850 fs_info->swapfile_pins = RB_ROOT;
2852 fs_info->send_in_progress = 0;
2855 static int init_mount_fs_info(struct btrfs_fs_info *fs_info, struct super_block *sb)
2859 fs_info->sb = sb;
2863 ret = percpu_counter_init(&fs_info->dio_bytes, 0, GFP_KERNEL);
2867 ret = percpu_counter_init(&fs_info->dirty_metadata_bytes, 0, GFP_KERNEL);
2871 fs_info->dirty_metadata_batch = PAGE_SIZE *
2874 ret = percpu_counter_init(&fs_info->delalloc_bytes, 0, GFP_KERNEL);
2878 ret = percpu_counter_init(&fs_info->dev_replace.bio_counter, 0,
2883 fs_info->delayed_root = kmalloc(sizeof(struct btrfs_delayed_root),
2885 if (!fs_info->delayed_root)
2887 btrfs_init_delayed_root(fs_info->delayed_root);
2889 return btrfs_alloc_stripe_hash_table(fs_info);
2894 struct btrfs_fs_info *fs_info = (struct btrfs_fs_info *)data;
2902 ret = btrfs_uuid_tree_iterate(fs_info);
2905 btrfs_warn(fs_info, "iterating uuid_tree failed %d",
2907 up(&fs_info->uuid_tree_rescan_sem);
2913 static int btrfs_check_uuid_tree(struct btrfs_fs_info *fs_info)
2917 down(&fs_info->uuid_tree_rescan_sem);
2918 task = kthread_run(btrfs_uuid_rescan_kthread, fs_info, "btrfs-uuid");
2920 /* fs_info->update_uuid_tree_gen remains 0 in all error case */
2921 btrfs_warn(fs_info, "failed to start uuid_rescan task");
2922 up(&fs_info->uuid_tree_rescan_sem);
2939 struct btrfs_fs_info *fs_info = btrfs_sb(sb);
2947 ret = init_mount_fs_info(fs_info, sb);
2954 tree_root = btrfs_alloc_root(fs_info, BTRFS_ROOT_TREE_OBJECTID,
2956 fs_info->tree_root = tree_root;
2957 chunk_root = btrfs_alloc_root(fs_info, BTRFS_CHUNK_TREE_OBJECTID,
2959 fs_info->chunk_root = chunk_root;
2965 fs_info->btree_inode = new_inode(sb);
2966 if (!fs_info->btree_inode) {
2970 mapping_set_gfp_mask(fs_info->btree_inode->i_mapping, GFP_NOFS);
2971 btrfs_init_btree_inode(fs_info);
2990 btrfs_err(fs_info, "unsupported checksum algorithm: %u",
2997 ret = btrfs_init_csum_hash(fs_info, csum_type);
3008 if (btrfs_check_super_csum(fs_info, (u8 *)disk_super)) {
3009 btrfs_err(fs_info, "superblock checksum mismatch");
3020 memcpy(fs_info->super_copy, disk_super, sizeof(*fs_info->super_copy));
3023 disk_super = fs_info->super_copy;
3030 btrfs_info(fs_info,
3034 memcpy(fs_info->super_for_commit, fs_info->super_copy,
3035 sizeof(*fs_info->super_for_commit));
3037 ret = btrfs_validate_mount_super(fs_info);
3039 btrfs_err(fs_info, "superblock contains fatal errors");
3049 set_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state);
3055 fs_info->compress_type = BTRFS_COMPRESS_ZLIB;
3063 btrfs_info(fs_info,
3068 /* Set up fs_info before parsing mount options */
3072 fs_info->dirty_metadata_batch = nodesize * (1 + ilog2(nr_cpu_ids));
3073 fs_info->delalloc_batch = sectorsize * 512 * (1 + ilog2(nr_cpu_ids));
3076 fs_info->nodesize = nodesize;
3077 fs_info->sectorsize = sectorsize;
3078 fs_info->stripesize = stripesize;
3080 ret = btrfs_parse_options(fs_info, options, sb->s_flags);
3089 btrfs_err(fs_info,
3098 if (fs_info->compress_type == BTRFS_COMPRESS_LZO)
3100 else if (fs_info->compress_type == BTRFS_COMPRESS_ZSTD)
3104 btrfs_info(fs_info, "has skinny extents");
3112 btrfs_err(fs_info,
3127 btrfs_err(fs_info,
3139 !btrfs_test_opt(fs_info, NOLOGREPLAY))) {
3140 btrfs_err(fs_info,
3148 ret = btrfs_init_workqueues(fs_info, fs_devices);
3159 memcpy(&sb->s_uuid, fs_info->fs_devices->fsid, BTRFS_FSID_SIZE);
3161 mutex_lock(&fs_info->chunk_mutex);
3162 ret = btrfs_read_sys_array(fs_info);
3163 mutex_unlock(&fs_info->chunk_mutex);
3165 btrfs_err(fs_info, "failed to read the system array: %d", ret);
3172 chunk_root->node = read_tree_block(fs_info,
3177 btrfs_err(fs_info, "failed to read chunk root");
3186 read_extent_buffer(chunk_root->node, fs_info->chunk_tree_uuid,
3190 ret = btrfs_read_chunk_tree(fs_info);
3192 btrfs_err(fs_info, "failed to read chunk tree: %d", ret);
3203 btrfs_err(fs_info, "failed to read devices");
3207 ret = init_tree_roots(fs_info);
3219 if (fs_info->uuid_root && !btrfs_test_opt(fs_info, RESCAN_UUID_TREE) &&
3220 fs_info->generation == btrfs_super_uuid_tree_generation(disk_super))
3221 set_bit(BTRFS_FS_UPDATE_UUID_TREE_GEN, &fs_info->flags);
3223 ret = btrfs_verify_dev_extents(fs_info);
3225 btrfs_err(fs_info,
3230 ret = btrfs_recover_balance(fs_info);
3232 btrfs_err(fs_info, "failed to recover balance: %d", ret);
3236 ret = btrfs_init_dev_stats(fs_info);
3238 btrfs_err(fs_info, "failed to init dev_stats: %d", ret);
3242 ret = btrfs_init_dev_replace(fs_info);
3244 btrfs_err(fs_info, "failed to init dev_replace: %d", ret);
3252 btrfs_err(fs_info, "failed to init sysfs fsid interface: %d",
3257 ret = btrfs_sysfs_add_mounted(fs_info);
3259 btrfs_err(fs_info, "failed to init sysfs interface: %d", ret);
3263 ret = btrfs_init_space_info(fs_info);
3265 btrfs_err(fs_info, "failed to initialize space info: %d", ret);
3269 ret = btrfs_read_block_groups(fs_info);
3271 btrfs_err(fs_info, "failed to read block groups: %d", ret);
3275 if (!sb_rdonly(sb) && fs_info->fs_devices->missing_devices &&
3276 !btrfs_check_rw_degradable(fs_info, NULL)) {
3277 btrfs_warn(fs_info,
3282 fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root,
3284 if (IS_ERR(fs_info->cleaner_kthread))
3287 fs_info->transaction_kthread = kthread_run(transaction_kthread,
3290 if (IS_ERR(fs_info->transaction_kthread))
3293 if (!btrfs_test_opt(fs_info, NOSSD) &&
3294 !fs_info->fs_devices->rotating) {
3295 btrfs_set_and_info(fs_info, SSD, "enabling ssd optimizations");
3302 btrfs_apply_pending_changes(fs_info);
3305 if (btrfs_test_opt(fs_info, CHECK_INTEGRITY)) {
3306 ret = btrfsic_mount(fs_info, fs_devices,
3307 btrfs_test_opt(fs_info,
3310 fs_info->check_integrity_print_mask);
3312 btrfs_warn(fs_info,
3317 ret = btrfs_read_qgroup_config(fs_info);
3321 if (btrfs_build_ref_tree(fs_info))
3322 btrfs_err(fs_info, "couldn't build ref tree");
3326 !btrfs_test_opt(fs_info, NOLOGREPLAY)) {
3327 btrfs_info(fs_info, "start tree-log replay");
3328 ret = btrfs_replay_log(fs_info, fs_devices);
3335 ret = btrfs_find_orphan_roots(fs_info);
3340 ret = btrfs_cleanup_fs_roots(fs_info);
3344 mutex_lock(&fs_info->cleaner_mutex);
3346 mutex_unlock(&fs_info->cleaner_mutex);
3348 btrfs_warn(fs_info, "failed to recover relocation: %d",
3355 fs_info->fs_root = btrfs_get_fs_root(fs_info, BTRFS_FS_TREE_OBJECTID, true);
3356 if (IS_ERR(fs_info->fs_root)) {
3357 err = PTR_ERR(fs_info->fs_root);
3358 btrfs_warn(fs_info, "failed to read fs tree: %d", err);
3359 fs_info->fs_root = NULL;
3366 if (btrfs_test_opt(fs_info, CLEAR_CACHE) &&
3367 btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) {
3369 } else if (btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE) &&
3370 !btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE_VALID)) {
3371 btrfs_warn(fs_info, "free space tree is invalid");
3376 btrfs_info(fs_info, "clearing free space tree");
3377 ret = btrfs_clear_free_space_tree(fs_info);
3379 btrfs_warn(fs_info,
3381 close_ctree(fs_info);
3386 if (btrfs_test_opt(fs_info, FREE_SPACE_TREE) &&
3387 !btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) {
3388 btrfs_info(fs_info, "creating free space tree");
3389 ret = btrfs_create_free_space_tree(fs_info);
3391 btrfs_warn(fs_info,
3393 close_ctree(fs_info);
3398 down_read(&fs_info->cleanup_work_sem);
3399 if ((ret = btrfs_orphan_cleanup(fs_info->fs_root)) ||
3400 (ret = btrfs_orphan_cleanup(fs_info->tree_root))) {
3401 up_read(&fs_info->cleanup_work_sem);
3402 close_ctree(fs_info);
3405 up_read(&fs_info->cleanup_work_sem);
3407 ret = btrfs_resume_balance_async(fs_info);
3409 btrfs_warn(fs_info, "failed to resume balance: %d", ret);
3410 close_ctree(fs_info);
3414 ret = btrfs_resume_dev_replace_async(fs_info);
3416 btrfs_warn(fs_info, "failed to resume device replace: %d", ret);
3417 close_ctree(fs_info);
3421 btrfs_qgroup_rescan_resume(fs_info);
3422 btrfs_discard_resume(fs_info);
3424 if (!fs_info->uuid_root) {
3425 btrfs_info(fs_info, "creating UUID tree");
3426 ret = btrfs_create_uuid_tree(fs_info);
3428 btrfs_warn(fs_info,
3430 close_ctree(fs_info);
3433 } else if (btrfs_test_opt(fs_info, RESCAN_UUID_TREE) ||
3434 fs_info->generation !=
3436 btrfs_info(fs_info, "checking UUID tree");
3437 ret = btrfs_check_uuid_tree(fs_info);
3439 btrfs_warn(fs_info,
3441 close_ctree(fs_info);
3445 set_bit(BTRFS_FS_OPEN, &fs_info->flags);
3451 btrfs_clear_opt(fs_info->mount_opt, USEBACKUPROOT);
3456 btrfs_free_qgroup_config(fs_info);
3458 kthread_stop(fs_info->transaction_kthread);
3459 btrfs_cleanup_transaction(fs_info);
3460 btrfs_free_fs_roots(fs_info);
3462 kthread_stop(fs_info->cleaner_kthread);
3468 filemap_write_and_wait(fs_info->btree_inode->i_mapping);
3471 btrfs_sysfs_remove_mounted(fs_info);
3474 btrfs_sysfs_remove_fsid(fs_info->fs_devices);
3477 btrfs_put_block_group_cache(fs_info);
3480 if (fs_info->data_reloc_root)
3481 btrfs_drop_and_free_fs_root(fs_info, fs_info->data_reloc_root);
3482 free_root_pointers(fs_info, true);
3483 invalidate_inode_pages2(fs_info->btree_inode->i_mapping);
3486 btrfs_stop_all_workers(fs_info);
3487 btrfs_free_block_groups(fs_info);
3489 btrfs_mapping_tree_free(&fs_info->mapping_tree);
3491 iput(fs_info->btree_inode);
3493 btrfs_close_devices(fs_info->fs_devices);
3509 btrfs_warn_rl_in_rcu(device->fs_info,
3600 struct btrfs_fs_info *fs_info = device->fs_info;
3602 SHASH_DESC_ON_STACK(shash, fs_info->csum_shash);
3610 shash->tfm = fs_info->csum_shash;
3631 btrfs_err(device->fs_info,
3663 if (i == 0 && !btrfs_test_opt(device->fs_info, NOBARRIER))
3721 btrfs_err(device->fs_info, "error writing primary super block to device %llu",
3789 static int check_barrier_error(struct btrfs_fs_info *fs_info)
3791 if (!btrfs_check_rw_degradable(fs_info, NULL))
3884 int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors)
3896 do_barriers = !btrfs_test_opt(fs_info, NOBARRIER);
3900 * not from fsync where the tree roots in fs_info have not
3904 backup_super_roots(fs_info);
3906 sb = fs_info->super_for_commit;
3909 mutex_lock(&fs_info->fs_devices->device_list_mutex);
3910 head = &fs_info->fs_devices->devices;
3911 max_errors = btrfs_super_num_devices(fs_info->super_copy) - 1;
3914 ret = barrier_all_devices(fs_info);
3917 &fs_info->fs_devices->device_list_mutex);
3918 btrfs_handle_fs_error(fs_info, ret,
3950 ret = btrfs_validate_write_super(fs_info, sb);
3952 mutex_unlock(&fs_info->fs_devices->device_list_mutex);
3953 btrfs_handle_fs_error(fs_info, -EUCLEAN,
3963 btrfs_err(fs_info, "%d errors while writing supers",
3965 mutex_unlock(&fs_info->fs_devices->device_list_mutex);
3968 btrfs_handle_fs_error(fs_info, -EIO,
3986 mutex_unlock(&fs_info->fs_devices->device_list_mutex);
3988 btrfs_handle_fs_error(fs_info, -EIO,
3997 void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info,
4002 spin_lock(&fs_info->fs_roots_radix_lock);
4003 radix_tree_delete(&fs_info->fs_roots_radix,
4007 spin_unlock(&fs_info->fs_roots_radix_lock);
4009 if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
4029 int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info)
4038 spin_lock(&fs_info->fs_roots_radix_lock);
4039 ret = radix_tree_gang_lookup(&fs_info->fs_roots_radix,
4043 spin_unlock(&fs_info->fs_roots_radix_lock);
4057 spin_unlock(&fs_info->fs_roots_radix_lock);
4079 int btrfs_commit_super(struct btrfs_fs_info *fs_info)
4081 struct btrfs_root *root = fs_info->tree_root;
4084 mutex_lock(&fs_info->cleaner_mutex);
4085 btrfs_run_delayed_iputs(fs_info);
4086 mutex_unlock(&fs_info->cleaner_mutex);
4087 wake_up_process(fs_info->cleaner_kthread);
4090 down_write(&fs_info->cleanup_work_sem);
4091 up_write(&fs_info->cleanup_work_sem);
4099 void __cold close_ctree(struct btrfs_fs_info *fs_info)
4103 set_bit(BTRFS_FS_CLOSING_START, &fs_info->flags);
4110 kthread_park(fs_info->cleaner_kthread);
4113 btrfs_qgroup_wait_for_completion(fs_info, false);
4116 down(&fs_info->uuid_tree_rescan_sem);
4118 up(&fs_info->uuid_tree_rescan_sem);
4121 btrfs_pause_balance(fs_info);
4123 btrfs_dev_replace_suspend_for_unmount(fs_info);
4125 btrfs_scrub_cancel(fs_info);
4128 wait_event(fs_info->transaction_wait,
4129 (atomic_read(&fs_info->defrag_running) == 0));
4132 btrfs_cleanup_defrag_inodes(fs_info);
4154 btrfs_flush_workqueue(fs_info->endio_write_workers);
4156 btrfs_flush_workqueue(fs_info->endio_freespace_worker);
4157 btrfs_run_delayed_iputs(fs_info);
4159 cancel_work_sync(&fs_info->async_reclaim_work);
4160 cancel_work_sync(&fs_info->async_data_reclaim_work);
4163 btrfs_discard_cleanup(fs_info);
4165 if (!sb_rdonly(fs_info->sb)) {
4170 btrfs_delete_unused_bgs(fs_info);
4183 btrfs_flush_workqueue(fs_info->delayed_workers);
4185 ret = btrfs_commit_super(fs_info);
4187 btrfs_err(fs_info, "commit super ret %d", ret);
4190 if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state) ||
4191 test_bit(BTRFS_FS_STATE_TRANS_ABORTED, &fs_info->fs_state))
4192 btrfs_error_commit_super(fs_info);
4194 kthread_stop(fs_info->transaction_kthread);
4195 kthread_stop(fs_info->cleaner_kthread);
4197 ASSERT(list_empty(&fs_info->delayed_iputs));
4198 set_bit(BTRFS_FS_CLOSING_DONE, &fs_info->flags);
4200 if (btrfs_check_quota_leak(fs_info)) {
4202 btrfs_err(fs_info, "qgroup reserved space leaked");
4205 btrfs_free_qgroup_config(fs_info);
4206 ASSERT(list_empty(&fs_info->delalloc_roots));
4208 if (percpu_counter_sum(&fs_info->delalloc_bytes)) {
4209 btrfs_info(fs_info, "at unmount delalloc count %lld",
4210 percpu_counter_sum(&fs_info->delalloc_bytes));
4213 if (percpu_counter_sum(&fs_info->dio_bytes))
4214 btrfs_info(fs_info, "at unmount dio bytes count %lld",
4215 percpu_counter_sum(&fs_info->dio_bytes));
4217 btrfs_sysfs_remove_mounted(fs_info);
4218 btrfs_sysfs_remove_fsid(fs_info->fs_devices);
4220 btrfs_put_block_group_cache(fs_info);
4226 invalidate_inode_pages2(fs_info->btree_inode->i_mapping);
4227 btrfs_stop_all_workers(fs_info);
4229 clear_bit(BTRFS_FS_OPEN, &fs_info->flags);
4230 free_root_pointers(fs_info, true);
4231 btrfs_free_fs_roots(fs_info);
4240 btrfs_free_block_groups(fs_info);
4242 iput(fs_info->btree_inode);
4245 if (btrfs_test_opt(fs_info, CHECK_INTEGRITY))
4246 btrfsic_unmount(fs_info->fs_devices);
4249 btrfs_mapping_tree_free(&fs_info->mapping_tree);
4250 btrfs_close_devices(fs_info->fs_devices);
4272 struct btrfs_fs_info *fs_info;
4287 fs_info = root->fs_info;
4289 if (transid != fs_info->generation)
4291 buf->start, transid, fs_info->generation);
4294 percpu_counter_add_batch(&fs_info->dirty_metadata_bytes,
4296 fs_info->dirty_metadata_batch);
4311 static void __btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info,
4324 btrfs_balance_delayed_items(fs_info);
4326 ret = __percpu_counter_compare(&fs_info->dirty_metadata_bytes,
4328 fs_info->dirty_metadata_batch);
4330 balance_dirty_pages_ratelimited(fs_info->btree_inode->i_mapping);
4334 void btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info)
4336 __btrfs_btree_balance_dirty(fs_info, 1);
4339 void btrfs_btree_balance_dirty_nodelay(struct btrfs_fs_info *fs_info)
4341 __btrfs_btree_balance_dirty(fs_info, 0);
4351 static void btrfs_error_commit_super(struct btrfs_fs_info *fs_info)
4354 btrfs_cleanup_transaction(fs_info);
4356 mutex_lock(&fs_info->cleaner_mutex);
4357 btrfs_run_delayed_iputs(fs_info);
4358 mutex_unlock(&fs_info->cleaner_mutex);
4360 down_write(&fs_info->cleanup_work_sem);
4361 up_write(&fs_info->cleanup_work_sem);
4364 static void btrfs_drop_all_logs(struct btrfs_fs_info *fs_info)
4370 spin_lock(&fs_info->fs_roots_radix_lock);
4371 while ((ret = radix_tree_gang_lookup(&fs_info->fs_roots_radix,
4378 spin_unlock(&fs_info->fs_roots_radix_lock);
4388 spin_lock(&fs_info->fs_roots_radix_lock);
4390 spin_unlock(&fs_info->fs_roots_radix_lock);
4391 btrfs_free_log_root_tree(NULL, fs_info);
4409 static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info)
4416 spin_lock(&fs_info->ordered_root_lock);
4417 list_splice_init(&fs_info->ordered_roots, &splice);
4422 &fs_info->ordered_roots);
4424 spin_unlock(&fs_info->ordered_root_lock);
4428 spin_lock(&fs_info->ordered_root_lock);
4430 spin_unlock(&fs_info->ordered_root_lock);
4438 btrfs_wait_ordered_roots(fs_info, U64_MAX, 0, (u64)-1);
4442 struct btrfs_fs_info *fs_info)
4454 btrfs_debug(fs_info, "delayed_refs has NO entry");
4491 cache = btrfs_lookup_block_group(fs_info, head->bytenr);
4497 btrfs_space_info_update_bytes_pinned(fs_info,
4509 btrfs_error_unpin_extent_range(fs_info, head->bytenr,
4512 btrfs_cleanup_ref_head_accounting(fs_info, delayed_refs, head);
4559 static void btrfs_destroy_all_delalloc_inodes(struct btrfs_fs_info *fs_info)
4566 spin_lock(&fs_info->delalloc_root_lock);
4567 list_splice_init(&fs_info->delalloc_roots, &splice);
4573 spin_unlock(&fs_info->delalloc_root_lock);
4578 spin_lock(&fs_info->delalloc_root_lock);
4580 spin_unlock(&fs_info->delalloc_root_lock);
4583 static int btrfs_destroy_marked_extents(struct btrfs_fs_info *fs_info,
4600 eb = find_extent_buffer(fs_info, start);
4601 start += fs_info->nodesize;
4616 static int btrfs_destroy_pinned_extent(struct btrfs_fs_info *fs_info,
4632 mutex_lock(&fs_info->unused_bg_unpin_mutex);
4636 mutex_unlock(&fs_info->unused_bg_unpin_mutex);
4642 btrfs_error_unpin_extent_range(fs_info, start, end);
4643 mutex_unlock(&fs_info->unused_bg_unpin_mutex);
4671 struct btrfs_fs_info *fs_info)
4695 btrfs_delayed_refs_rsv_release(fs_info, 1);
4718 struct btrfs_fs_info *fs_info)
4722 btrfs_cleanup_dirty_bgs(cur_trans, fs_info);
4731 btrfs_destroy_delayed_refs(cur_trans, fs_info);
4734 wake_up(&fs_info->transaction_blocked_wait);
4737 wake_up(&fs_info->transaction_wait);
4739 btrfs_destroy_delayed_inodes(fs_info);
4741 btrfs_destroy_marked_extents(fs_info, &cur_trans->dirty_pages,
4743 btrfs_destroy_pinned_extent(fs_info, &cur_trans->pinned_extents);
4749 static int btrfs_cleanup_transaction(struct btrfs_fs_info *fs_info)
4753 mutex_lock(&fs_info->transaction_kthread_mutex);
4755 spin_lock(&fs_info->trans_lock);
4756 while (!list_empty(&fs_info->trans_list)) {
4757 t = list_first_entry(&fs_info->trans_list,
4761 spin_unlock(&fs_info->trans_lock);
4762 btrfs_wait_for_commit(fs_info, t->transid);
4764 spin_lock(&fs_info->trans_lock);
4767 if (t == fs_info->running_transaction) {
4769 spin_unlock(&fs_info->trans_lock);
4777 spin_unlock(&fs_info->trans_lock);
4779 btrfs_cleanup_one_transaction(t, fs_info);
4781 spin_lock(&fs_info->trans_lock);
4782 if (t == fs_info->running_transaction)
4783 fs_info->running_transaction = NULL;
4785 spin_unlock(&fs_info->trans_lock);
4788 trace_btrfs_transaction_commit(fs_info->tree_root);
4789 spin_lock(&fs_info->trans_lock);
4791 spin_unlock(&fs_info->trans_lock);
4792 btrfs_destroy_all_ordered_extents(fs_info);
4793 btrfs_destroy_delayed_inodes(fs_info);
4794 btrfs_assert_delayed_root_empty(fs_info);
4795 btrfs_destroy_all_delalloc_inodes(fs_info);
4796 btrfs_drop_all_logs(fs_info);
4797 mutex_unlock(&fs_info->transaction_kthread_mutex);
4843 btrfs_warn(root->fs_info,