diff options
Diffstat (limited to 'fs/bcachefs/buckets.c')
| -rw-r--r-- | fs/bcachefs/buckets.c | 733 |
1 files changed, 499 insertions, 234 deletions
diff --git a/fs/bcachefs/buckets.c b/fs/bcachefs/buckets.c index 82f1792588..314ee3e018 100644 --- a/fs/bcachefs/buckets.c +++ b/fs/bcachefs/buckets.c @@ -274,25 +274,14 @@ void bch2_dev_usage_init(struct bch_dev *ca) void bch2_dev_usage_to_text(struct printbuf *out, struct bch_dev_usage *usage) { - prt_tab(out); - prt_str(out, "buckets"); - prt_tab_rjust(out); - prt_str(out, "sectors"); - prt_tab_rjust(out); - prt_str(out, "fragmented"); - prt_tab_rjust(out); - prt_newline(out); + prt_printf(out, "\tbuckets\rsectors\rfragmented\r\n"); for (unsigned i = 0; i < BCH_DATA_NR; i++) { bch2_prt_data_type(out, i); - prt_tab(out); - prt_u64(out, usage->d[i].buckets); - prt_tab_rjust(out); - prt_u64(out, usage->d[i].sectors); - prt_tab_rjust(out); - prt_u64(out, usage->d[i].fragmented); - prt_tab_rjust(out); - prt_newline(out); + prt_printf(out, "\t%llu\r%llu\r%llu\r\n", + usage->d[i].buckets, + usage->d[i].sectors, + usage->d[i].fragmented); } } @@ -329,26 +318,6 @@ void bch2_dev_usage_update(struct bch_fs *c, struct bch_dev *ca, preempt_enable(); } -static inline struct bch_alloc_v4 bucket_m_to_alloc(struct bucket b) -{ - return (struct bch_alloc_v4) { - .gen = b.gen, - .data_type = b.data_type, - .dirty_sectors = b.dirty_sectors, - .cached_sectors = b.cached_sectors, - .stripe = b.stripe, - }; -} - -void bch2_dev_usage_update_m(struct bch_fs *c, struct bch_dev *ca, - struct bucket *old, struct bucket *new) -{ - struct bch_alloc_v4 old_a = bucket_m_to_alloc(*old); - struct bch_alloc_v4 new_a = bucket_m_to_alloc(*new); - - bch2_dev_usage_update(c, ca, &old_a, &new_a, 0, true); -} - static inline int __update_replicas(struct bch_fs *c, struct bch_fs_usage *fs_usage, struct bch_replicas_entry_v1 *r, @@ -496,78 +465,305 @@ int bch2_update_cached_sectors_list(struct btree_trans *trans, unsigned dev, s64 return bch2_update_replicas_list(trans, &r.e, sectors); } -int bch2_mark_metadata_bucket(struct bch_fs *c, struct bch_dev *ca, - size_t b, enum bch_data_type data_type, - unsigned sectors, struct gc_pos pos, - unsigned flags) +static int bch2_check_fix_ptr(struct btree_trans *trans, + struct bkey_s_c k, + struct extent_ptr_decoded p, + const union bch_extent_entry *entry, + bool *do_update) { - struct bucket old, new, *g; + struct bch_fs *c = trans->c; + struct printbuf buf = PRINTBUF; int ret = 0; - BUG_ON(!(flags & BTREE_TRIGGER_GC)); - BUG_ON(data_type != BCH_DATA_sb && - data_type != BCH_DATA_journal); - - /* - * Backup superblock might be past the end of our normal usable space: - */ - if (b >= ca->mi.nbuckets) + struct bch_dev *ca = bch2_dev_tryget(c, p.ptr.dev); + if (!ca) { + if (fsck_err(c, ptr_to_invalid_device, + "pointer to missing device %u\n" + "while marking %s", + p.ptr.dev, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) + *do_update = true; return 0; + } - percpu_down_read(&c->mark_lock); - g = gc_bucket(ca, b); + struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr); + if (!g) { + if (fsck_err(c, ptr_to_invalid_device, + "pointer to invalid bucket on device %u\n" + "while marking %s", + p.ptr.dev, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) + *do_update = true; + goto out; + } - bucket_lock(g); - old = *g; + enum bch_data_type data_type = bch2_bkey_ptr_data_type(k, p, entry); - if (bch2_fs_inconsistent_on(g->data_type && - g->data_type != data_type, c, - "different types of data in same bucket: %s, %s", + if (fsck_err_on(!g->gen_valid, + c, ptr_to_missing_alloc_key, + "bucket %u:%zu data type %s ptr gen %u missing in alloc btree\n" + "while marking %s", + p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), + bch2_data_type_str(ptr_data_type(k.k, &p.ptr)), + p.ptr.gen, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) { + if (!p.ptr.cached) { + g->gen_valid = true; + g->gen = p.ptr.gen; + } else { + *do_update = true; + } + } + + if (fsck_err_on(gen_cmp(p.ptr.gen, g->gen) > 0, + c, ptr_gen_newer_than_bucket_gen, + "bucket %u:%zu data type %s ptr gen in the future: %u > %u\n" + "while marking %s", + p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), + bch2_data_type_str(ptr_data_type(k.k, &p.ptr)), + p.ptr.gen, g->gen, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) { + if (!p.ptr.cached && + (g->data_type != BCH_DATA_btree || + data_type == BCH_DATA_btree)) { + g->gen_valid = true; + g->gen = p.ptr.gen; + g->data_type = 0; + g->dirty_sectors = 0; + g->cached_sectors = 0; + } else { + *do_update = true; + } + } + + if (fsck_err_on(gen_cmp(g->gen, p.ptr.gen) > BUCKET_GC_GEN_MAX, + c, ptr_gen_newer_than_bucket_gen, + "bucket %u:%zu gen %u data type %s: ptr gen %u too stale\n" + "while marking %s", + p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), g->gen, + bch2_data_type_str(ptr_data_type(k.k, &p.ptr)), + p.ptr.gen, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) + *do_update = true; + + if (fsck_err_on(!p.ptr.cached && gen_cmp(p.ptr.gen, g->gen) < 0, + c, stale_dirty_ptr, + "bucket %u:%zu data type %s stale dirty ptr: %u < %u\n" + "while marking %s", + p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), + bch2_data_type_str(ptr_data_type(k.k, &p.ptr)), + p.ptr.gen, g->gen, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) + *do_update = true; + + if (data_type != BCH_DATA_btree && p.ptr.gen != g->gen) + goto out; + + if (fsck_err_on(bucket_data_type_mismatch(g->data_type, data_type), + c, ptr_bucket_data_type_mismatch, + "bucket %u:%zu gen %u different types of data in same bucket: %s, %s\n" + "while marking %s", + p.ptr.dev, PTR_BUCKET_NR(ca, &p.ptr), g->gen, bch2_data_type_str(g->data_type), - bch2_data_type_str(data_type))) { - ret = -EIO; - goto err; + bch2_data_type_str(data_type), + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) { + if (data_type == BCH_DATA_btree) { + g->gen_valid = true; + g->gen = p.ptr.gen; + g->data_type = data_type; + g->dirty_sectors = 0; + g->cached_sectors = 0; + } else { + *do_update = true; + } } - if (bch2_fs_inconsistent_on((u64) g->dirty_sectors + sectors > ca->mi.bucket_size, c, - "bucket %u:%zu gen %u data type %s sector count overflow: %u + %u > bucket size", - ca->dev_idx, b, g->gen, - bch2_data_type_str(g->data_type ?: data_type), - g->dirty_sectors, sectors)) { - ret = -EIO; - goto err; + if (p.has_ec) { + struct gc_stripe *m = genradix_ptr(&c->gc_stripes, p.ec.idx); + + if (fsck_err_on(!m || !m->alive, + c, ptr_to_missing_stripe, + "pointer to nonexistent stripe %llu\n" + "while marking %s", + (u64) p.ec.idx, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) + *do_update = true; + + if (fsck_err_on(m && m->alive && !bch2_ptr_matches_stripe_m(m, p), + c, ptr_to_incorrect_stripe, + "pointer does not match stripe %llu\n" + "while marking %s", + (u64) p.ec.idx, + (printbuf_reset(&buf), + bch2_bkey_val_to_text(&buf, c, k), buf.buf))) + *do_update = true; + } +out: +fsck_err: + bch2_dev_put(ca); + printbuf_exit(&buf); + return ret; +} + +int bch2_check_fix_ptrs(struct btree_trans *trans, + enum btree_id btree, unsigned level, struct bkey_s_c k, + enum btree_iter_update_trigger_flags flags) +{ + struct bch_fs *c = trans->c; + struct bkey_ptrs_c ptrs_c = bch2_bkey_ptrs_c(k); + const union bch_extent_entry *entry_c; + struct extent_ptr_decoded p = { 0 }; + bool do_update = false; + struct printbuf buf = PRINTBUF; + int ret = 0; + + percpu_down_read(&c->mark_lock); + + bkey_for_each_ptr_decode(k.k, ptrs_c, p, entry_c) { + ret = bch2_check_fix_ptr(trans, k, p, entry_c, &do_update); + if (ret) + goto err; } - g->data_type = data_type; - g->dirty_sectors += sectors; - new = *g; + if (do_update) { + if (flags & BTREE_TRIGGER_is_root) { + bch_err(c, "cannot update btree roots yet"); + ret = -EINVAL; + goto err; + } + + struct bkey_i *new = bch2_bkey_make_mut_noupdate(trans, k); + ret = PTR_ERR_OR_ZERO(new); + if (ret) + goto err; + + rcu_read_lock(); + bch2_bkey_drop_ptrs(bkey_i_to_s(new), ptr, !bch2_dev_rcu(c, ptr->dev)); + rcu_read_unlock(); + + if (level) { + /* + * We don't want to drop btree node pointers - if the + * btree node isn't there anymore, the read path will + * sort it out: + */ + struct bkey_ptrs ptrs = bch2_bkey_ptrs(bkey_i_to_s(new)); + rcu_read_lock(); + bkey_for_each_ptr(ptrs, ptr) { + struct bch_dev *ca = bch2_dev_rcu(c, ptr->dev); + struct bucket *g = PTR_GC_BUCKET(ca, ptr); + + ptr->gen = g->gen; + } + rcu_read_unlock(); + } else { + struct bkey_ptrs ptrs; + union bch_extent_entry *entry; + + rcu_read_lock(); +restart_drop_ptrs: + ptrs = bch2_bkey_ptrs(bkey_i_to_s(new)); + bkey_for_each_ptr_decode(bkey_i_to_s(new).k, ptrs, p, entry) { + struct bch_dev *ca = bch2_dev_rcu(c, p.ptr.dev); + struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr); + enum bch_data_type data_type = bch2_bkey_ptr_data_type(bkey_i_to_s_c(new), p, entry); + + if ((p.ptr.cached && + (!g->gen_valid || gen_cmp(p.ptr.gen, g->gen) > 0)) || + (!p.ptr.cached && + gen_cmp(p.ptr.gen, g->gen) < 0) || + gen_cmp(g->gen, p.ptr.gen) > BUCKET_GC_GEN_MAX || + (g->data_type && + g->data_type != data_type)) { + bch2_bkey_drop_ptr(bkey_i_to_s(new), &entry->ptr); + goto restart_drop_ptrs; + } + } + rcu_read_unlock(); +again: + ptrs = bch2_bkey_ptrs(bkey_i_to_s(new)); + bkey_extent_entry_for_each(ptrs, entry) { + if (extent_entry_type(entry) == BCH_EXTENT_ENTRY_stripe_ptr) { + struct gc_stripe *m = genradix_ptr(&c->gc_stripes, + entry->stripe_ptr.idx); + union bch_extent_entry *next_ptr; + + bkey_extent_entry_for_each_from(ptrs, next_ptr, entry) + if (extent_entry_type(next_ptr) == BCH_EXTENT_ENTRY_ptr) + goto found; + next_ptr = NULL; +found: + if (!next_ptr) { + bch_err(c, "aieee, found stripe ptr with no data ptr"); + continue; + } + + if (!m || !m->alive || + !__bch2_ptr_matches_stripe(&m->ptrs[entry->stripe_ptr.block], + &next_ptr->ptr, + m->sectors)) { + bch2_bkey_extent_entry_drop(new, entry); + goto again; + } + } + } + } + + if (0) { + printbuf_reset(&buf); + bch2_bkey_val_to_text(&buf, c, k); + bch_info(c, "updated %s", buf.buf); + + printbuf_reset(&buf); + bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(new)); + bch_info(c, "new key %s", buf.buf); + } + + percpu_up_read(&c->mark_lock); + struct btree_iter iter; + bch2_trans_node_iter_init(trans, &iter, btree, new->k.p, 0, level, + BTREE_ITER_intent|BTREE_ITER_all_snapshots); + ret = bch2_btree_iter_traverse(&iter) ?: + bch2_trans_update(trans, &iter, new, + BTREE_UPDATE_internal_snapshot_node| + BTREE_TRIGGER_norun); + bch2_trans_iter_exit(trans, &iter); + percpu_down_read(&c->mark_lock); + + if (ret) + goto err; + + if (level) + bch2_btree_node_update_key_early(trans, btree, level - 1, k, new); + } err: - bucket_unlock(g); - if (!ret) - bch2_dev_usage_update_m(c, ca, &old, &new); percpu_up_read(&c->mark_lock); + printbuf_exit(&buf); return ret; } -int bch2_check_bucket_ref(struct btree_trans *trans, - struct bkey_s_c k, - const struct bch_extent_ptr *ptr, - s64 sectors, enum bch_data_type ptr_data_type, - u8 b_gen, u8 bucket_data_type, - u32 bucket_sectors) +int bch2_bucket_ref_update(struct btree_trans *trans, struct bch_dev *ca, + struct bkey_s_c k, + const struct bch_extent_ptr *ptr, + s64 sectors, enum bch_data_type ptr_data_type, + u8 b_gen, u8 bucket_data_type, + u32 *bucket_sectors) { struct bch_fs *c = trans->c; - struct bch_dev *ca = bch_dev_bkey_exists(c, ptr->dev); size_t bucket_nr = PTR_BUCKET_NR(ca, ptr); struct printbuf buf = PRINTBUF; + bool inserting = sectors > 0; int ret = 0; - if (bucket_data_type == BCH_DATA_cached) - bucket_data_type = BCH_DATA_user; - - if ((bucket_data_type == BCH_DATA_stripe && ptr_data_type == BCH_DATA_user) || - (bucket_data_type == BCH_DATA_user && ptr_data_type == BCH_DATA_stripe)) - bucket_data_type = ptr_data_type = BCH_DATA_stripe; + BUG_ON(!sectors); if (gen_after(ptr->gen, b_gen)) { bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, @@ -578,8 +774,9 @@ int bch2_check_bucket_ref(struct btree_trans *trans, bch2_data_type_str(bucket_data_type ?: ptr_data_type), ptr->gen, (bch2_bkey_val_to_text(&buf, c, k), buf.buf)); - ret = -EIO; - goto err; + if (inserting) + goto err; + goto out; } if (gen_cmp(b_gen, ptr->gen) > BUCKET_GC_GEN_MAX) { @@ -592,33 +789,33 @@ int bch2_check_bucket_ref(struct btree_trans *trans, ptr->gen, (printbuf_reset(&buf), bch2_bkey_val_to_text(&buf, c, k), buf.buf)); - ret = -EIO; - goto err; + if (inserting) + goto err; + goto out; + } + + if (b_gen != ptr->gen && ptr->cached) { + ret = 1; + goto out; } - if (b_gen != ptr->gen && !ptr->cached) { + if (b_gen != ptr->gen) { bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, BCH_FSCK_ERR_stale_dirty_ptr, "bucket %u:%zu gen %u (mem gen %u) data type %s: stale dirty ptr (gen %u)\n" "while marking %s", ptr->dev, bucket_nr, b_gen, - *bucket_gen(ca, bucket_nr), + bucket_gen_get(ca, bucket_nr), bch2_data_type_str(bucket_data_type ?: ptr_data_type), ptr->gen, (printbuf_reset(&buf), bch2_bkey_val_to_text(&buf, c, k), buf.buf)); - ret = -EIO; - goto err; - } - - if (b_gen != ptr->gen) { - ret = 1; + if (inserting) + goto err; goto out; } - if (!data_type_is_empty(bucket_data_type) && - ptr_data_type && - bucket_data_type != ptr_data_type) { + if (bucket_data_type_mismatch(bucket_data_type, ptr_data_type)) { bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, BCH_FSCK_ERR_ptr_bucket_data_type_mismatch, "bucket %u:%zu gen %u different types of data in same bucket: %s, %s\n" @@ -628,28 +825,33 @@ int bch2_check_bucket_ref(struct btree_trans *trans, bch2_data_type_str(ptr_data_type), (printbuf_reset(&buf), bch2_bkey_val_to_text(&buf, c, k), buf.buf)); - ret = -EIO; - goto err; + if (inserting) + goto err; + goto out; } - if ((u64) bucket_sectors + sectors > U32_MAX) { + if ((u64) *bucket_sectors + sectors > U32_MAX) { bch2_fsck_err(c, FSCK_CAN_IGNORE|FSCK_NEED_FSCK, BCH_FSCK_ERR_bucket_sector_count_overflow, "bucket %u:%zu gen %u data type %s sector count overflow: %u + %lli > U32_MAX\n" "while marking %s", ptr->dev, bucket_nr, b_gen, bch2_data_type_str(bucket_data_type ?: ptr_data_type), - bucket_sectors, sectors, + *bucket_sectors, sectors, (printbuf_reset(&buf), bch2_bkey_val_to_text(&buf, c, k), buf.buf)); - ret = -EIO; - goto err; + if (inserting) + goto err; + sectors = -*bucket_sectors; } + + *bucket_sectors += sectors; out: printbuf_exit(&buf); return ret; err: bch2_dump_trans_updates(trans); + ret = -EIO; goto out; } @@ -786,29 +988,22 @@ need_mark: /* KEY_TYPE_extent: */ -static int __mark_pointer(struct btree_trans *trans, +static int __mark_pointer(struct btree_trans *trans, struct bch_dev *ca, struct bkey_s_c k, const struct bch_extent_ptr *ptr, s64 sectors, enum bch_data_type ptr_data_type, - u8 bucket_gen, u8 *bucket_data_type, - u32 *dirty_sectors, u32 *cached_sectors) + struct bch_alloc_v4 *a) { u32 *dst_sectors = !ptr->cached - ? dirty_sectors - : cached_sectors; - int ret = bch2_check_bucket_ref(trans, k, ptr, sectors, ptr_data_type, - bucket_gen, *bucket_data_type, *dst_sectors); + ? &a->dirty_sectors + : &a->cached_sectors; + int ret = bch2_bucket_ref_update(trans, ca, k, ptr, sectors, ptr_data_type, + a->gen, a->data_type, dst_sectors); if (ret) return ret; - *dst_sectors += sectors; - - if (!*dirty_sectors && !*cached_sectors) - *bucket_data_type = 0; - else if (*bucket_data_type != BCH_DATA_stripe) - *bucket_data_type = ptr_data_type; - + alloc_data_type_set(a, ptr_data_type); return 0; } @@ -816,81 +1011,79 @@ static int bch2_trigger_pointer(struct btree_trans *trans, enum btree_id btree_id, unsigned level, struct bkey_s_c k, struct extent_ptr_decoded p, const union bch_extent_entry *entry, - s64 *sectors, unsigned flags) + s64 *sectors, + enum btree_iter_update_trigger_flags flags) { - bool insert = !(flags & BTREE_TRIGGER_OVERWRITE); + bool insert = !(flags & BTREE_TRIGGER_overwrite); + struct printbuf buf = PRINTBUF; + int ret = 0; + + struct bch_fs *c = trans->c; + struct bch_dev *ca = bch2_dev_tryget(c, p.ptr.dev); + if (unlikely(!ca)) { + if (insert) + ret = -EIO; + goto err; + } + struct bpos bucket; struct bch_backpointer bp; - - bch2_extent_ptr_to_bp(trans->c, btree_id, level, k, p, entry, &bucket, &bp); + bch2_extent_ptr_to_bp(trans->c, ca, btree_id, level, k, p, entry, &bucket, &bp); *sectors = insert ? bp.bucket_len : -((s64) bp.bucket_len); - if (flags & BTREE_TRIGGER_TRANSACTIONAL) { - struct btree_iter iter; - struct bkey_i_alloc_v4 *a = bch2_trans_start_alloc_update(trans, &iter, bucket); - int ret = PTR_ERR_OR_ZERO(a); - if (ret) - return ret; - - ret = __mark_pointer(trans, k, &p.ptr, *sectors, bp.data_type, - a->v.gen, &a->v.data_type, - &a->v.dirty_sectors, &a->v.cached_sectors) ?: - bch2_trans_update(trans, &iter, &a->k_i, 0); - bch2_trans_iter_exit(trans, &iter); - + if (flags & BTREE_TRIGGER_transactional) { + struct bkey_i_alloc_v4 *a = bch2_trans_start_alloc_update(trans, bucket); + ret = PTR_ERR_OR_ZERO(a) ?: + __mark_pointer(trans, ca, k, &p.ptr, *sectors, bp.data_type, &a->v); if (ret) - return ret; + goto err; if (!p.ptr.cached) { - ret = bch2_bucket_backpointer_mod(trans, bucket, bp, k, insert); + ret = bch2_bucket_backpointer_mod(trans, ca, bucket, bp, k, insert); if (ret) - return ret; + goto err; } } - if (flags & BTREE_TRIGGER_GC) { - struct bch_fs *c = trans->c; - struct bch_dev *ca = bch_dev_bkey_exists(c, p.ptr.dev); - enum bch_data_type data_type = bch2_bkey_ptr_data_type(k, p, entry); - + if (flags & BTREE_TRIGGER_gc) { percpu_down_read(&c->mark_lock); - struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr); - bucket_lock(g); - struct bucket old = *g; - - u8 bucket_data_type = g->data_type; - int ret = __mark_pointer(trans, k, &p.ptr, *sectors, - data_type, g->gen, - &bucket_data_type, - &g->dirty_sectors, - &g->cached_sectors); - if (ret) { - bucket_unlock(g); - percpu_up_read(&c->mark_lock); - return ret; + struct bucket *g = gc_bucket(ca, bucket.offset); + if (bch2_fs_inconsistent_on(!g, c, "reference to invalid bucket on device %u\n %s", + p.ptr.dev, + (bch2_bkey_val_to_text(&buf, c, k), buf.buf))) { + ret = -EIO; + goto err_unlock; } - g->data_type = bucket_data_type; - struct bucket new = *g; + bucket_lock(g); + struct bch_alloc_v4 old = bucket_m_to_alloc(*g), new = old; + ret = __mark_pointer(trans, ca, k, &p.ptr, *sectors, bp.data_type, &new); + if (!ret) { + alloc_to_bucket(g, new); + bch2_dev_usage_update(c, ca, &old, &new, 0, true); + } bucket_unlock(g); - bch2_dev_usage_update_m(c, ca, &old, &new); +err_unlock: percpu_up_read(&c->mark_lock); } - - return 0; +err: + bch2_dev_put(ca); + printbuf_exit(&buf); + return ret; } static int bch2_trigger_stripe_ptr(struct btree_trans *trans, struct bkey_s_c k, struct extent_ptr_decoded p, enum bch_data_type data_type, - s64 sectors, unsigned flags) + s64 sectors, + enum btree_iter_update_trigger_flags flags) { - if (flags & BTREE_TRIGGER_TRANSACTIONAL) { + if (flags & BTREE_TRIGGER_transactional) { struct btree_iter iter; struct bkey_i_stripe *s = bch2_bkey_get_mut_typed(trans, &iter, BTREE_ID_stripes, POS(0, p.ec.idx), - BTREE_ITER_WITH_UPDATES, stripe); + BTREE_ITER_with_updates, stripe); int ret = PTR_ERR_OR_ZERO(s); if (unlikely(ret)) { bch2_trans_inconsistent_on(bch2_err_matches(ret, ENOENT), trans, @@ -920,10 +1113,10 @@ err: return ret; } - if (flags & BTREE_TRIGGER_GC) { + if (flags & BTREE_TRIGGER_gc) { struct bch_fs *c = trans->c; - BUG_ON(!(flags & BTREE_TRIGGER_GC)); + BUG_ON(!(flags & BTREE_TRIGGER_gc)); struct gc_stripe *m = genradix_ptr_alloc(&c->gc_stripes, p.ec.idx, GFP_KERNEL); if (!m) { @@ -959,9 +1152,10 @@ err: static int __trigger_extent(struct btree_trans *trans, enum btree_id btree_id, unsigned level, - struct bkey_s_c k, unsigned flags) + struct bkey_s_c k, + enum btree_iter_update_trigger_flags flags) { - bool gc = flags & BTREE_TRIGGER_GC; + bool gc = flags & BTREE_TRIGGER_gc; struct bch_fs *c = trans->c; struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k); const union bch_extent_entry *entry; @@ -970,7 +1164,7 @@ static int __trigger_extent(struct btree_trans *trans, enum bch_data_type data_type = bkey_is_btree_ptr(k.k) ? BCH_DATA_btree : BCH_DATA_user; - s64 dirty_sectors = 0; + s64 replicas_sectors = 0; int ret = 0; r.e.data_type = data_type; @@ -978,7 +1172,7 @@ static int __trigger_extent(struct btree_trans *trans, r.e.nr_required = 1; bkey_for_each_ptr_decode(k.k, ptrs, p, entry) { - s64 disk_sectors; + s64 disk_sectors = 0; ret = bch2_trigger_pointer(trans, btree_id, level, k, p, entry, &disk_sectors, flags); if (ret < 0) return ret; @@ -996,7 +1190,7 @@ static int __trigger_extent(struct btree_trans *trans, return ret; } } else if (!p.has_ec) { - dirty_sectors += disk_sectors; + replicas_sectors += disk_sectors; r.e.devs[r.e.nr_devs++] = p.ptr.dev; } else { ret = bch2_trigger_stripe_ptr(trans, k, p, data_type, disk_sectors, flags); @@ -1014,8 +1208,8 @@ static int __trigger_extent(struct btree_trans *trans, if (r.e.nr_devs) { ret = !gc - ? bch2_update_replicas_list(trans, &r.e, dirty_sectors) - : bch2_update_replicas(c, k, &r.e, dirty_sectors, 0, true); + ? bch2_update_replicas_list(trans, &r.e, replicas_sectors) + : bch2_update_replicas(c, k, &r.e, replicas_sectors, 0, true); if (unlikely(ret && gc)) { struct printbuf buf = PRINTBUF; @@ -1031,15 +1225,18 @@ static int __trigger_extent(struct btree_trans *trans, } int bch2_trigger_extent(struct btree_trans *trans, - enum btree_id btree_id, unsigned level, + enum btree_id btree, unsigned level, struct bkey_s_c old, struct bkey_s new, - unsigned flags) + enum btree_iter_update_trigger_flags flags) { struct bkey_ptrs_c new_ptrs = bch2_bkey_ptrs_c(new.s_c); struct bkey_ptrs_c old_ptrs = bch2_bkey_ptrs_c(old); unsigned new_ptrs_bytes = (void *) new_ptrs.end - (void *) new_ptrs.start; unsigned old_ptrs_bytes = (void *) old_ptrs.end - (void *) old_ptrs.start; + if (unlikely(flags & BTREE_TRIGGER_check_repair)) + return bch2_check_fix_ptrs(trans, btree, level, new.s_c, flags); + /* if pointers aren't changing - nothing to do: */ if (new_ptrs_bytes == old_ptrs_bytes && !memcmp(new_ptrs.start, @@ -1047,7 +1244,7 @@ int bch2_trigger_extent(struct btree_trans *trans, new_ptrs_bytes)) return 0; - if (flags & BTREE_TRIGGER_TRANSACTIONAL) { + if (flags & BTREE_TRIGGER_transactional) { struct bch_fs *c = trans->c; int mod = (int) bch2_bkey_needs_rebalance(c, new.s_c) - (int) bch2_bkey_needs_rebalance(c, old); @@ -1060,8 +1257,8 @@ int bch2_trigger_extent(struct btree_trans *trans, } } - if (flags & (BTREE_TRIGGER_TRANSACTIONAL|BTREE_TRIGGER_GC)) - return trigger_run_overwrite_then_insert(__trigger_extent, trans, btree_id, level, old, new, flags); + if (flags & (BTREE_TRIGGER_transactional|BTREE_TRIGGER_gc)) + return trigger_run_overwrite_then_insert(__trigger_extent, trans, btree, level, old, new, flags); return 0; } @@ -1069,17 +1266,17 @@ int bch2_trigger_extent(struct btree_trans *trans, /* KEY_TYPE_reservation */ static int __trigger_reservation(struct btree_trans *trans, - enum btree_id btree_id, unsigned level, - struct bkey_s_c k, unsigned flags) + enum btree_id btree_id, unsigned level, struct bkey_s_c k, + enum btree_iter_update_trigger_flags flags) { struct bch_fs *c = trans->c; unsigned replicas = bkey_s_c_to_reservation(k).v->nr_replicas; s64 sectors = (s64) k.k->size * replicas; - if (flags & BTREE_TRIGGER_OVERWRITE) + if (flags & BTREE_TRIGGER_overwrite) sectors = -sectors; - if (flags & BTREE_TRIGGER_TRANSACTIONAL) { + if (flags & BTREE_TRIGGER_transactional) { int ret = bch2_replicas_deltas_realloc(trans, 0); if (ret) return ret; @@ -1090,7 +1287,7 @@ static int __trigger_reservation(struct btree_trans *trans, d->persistent_reserved[replicas - 1] += sectors; } - if (flags & BTREE_TRIGGER_GC) { + if (flags & BTREE_TRIGGER_gc) { percpu_down_read(&c->mark_lock); preempt_disable(); @@ -1110,7 +1307,7 @@ static int __trigger_reservation(struct btree_trans *trans, int bch2_trigger_reservation(struct btree_trans *trans, enum btree_id btree_id, unsigned level, struct bkey_s_c old, struct bkey_s new, - unsigned flags) + enum btree_iter_update_trigger_flags flags) { return trigger_run_overwrite_then_insert(__trigger_reservation, trans, btree_id, level, old, new, flags); } @@ -1118,22 +1315,16 @@ int bch2_trigger_reservation(struct btree_trans *trans, /* Mark superblocks: */ static int __bch2_trans_mark_metadata_bucket(struct btree_trans *trans, - struct bch_dev *ca, size_t b, + struct bch_dev *ca, u64 b, enum bch_data_type type, unsigned sectors) { struct bch_fs *c = trans->c; struct btree_iter iter; - struct bkey_i_alloc_v4 *a; int ret = 0; - /* - * Backup superblock might be past the end of our normal usable space: - */ - if (b >= ca->mi.nbuckets) - return 0; - - a = bch2_trans_start_alloc_update(trans, &iter, POS(ca->dev_idx, b)); + struct bkey_i_alloc_v4 *a = + bch2_trans_start_alloc_update_noupdate(trans, &iter, POS(ca->dev_idx, b)); if (IS_ERR(a)) return PTR_ERR(a); @@ -1161,20 +1352,74 @@ err: return ret; } +static int bch2_mark_metadata_bucket(struct bch_fs *c, struct bch_dev *ca, + u64 b, enum bch_data_type data_type, unsigned sectors, + enum btree_iter_update_trigger_flags flags) +{ + percpu_down_read(&c->mark_lock); + struct bucket *g = gc_bucket(ca, b); + if (bch2_fs_inconsistent_on(!g, c, "reference to invalid bucket on device %u when marking metadata type %s", + ca->dev_idx, bch2_data_type_str(data_type))) + goto err_unlock; + + bucket_lock(g); + struct bch_alloc_v4 old = bucket_m_to_alloc(*g); + + if (bch2_fs_inconsistent_on(g->data_type && + g->data_type != data_type, c, + "different types of data in same bucket: %s, %s", + bch2_data_type_str(g->data_type), + bch2_data_type_str(data_type))) + goto err; + + if (bch2_fs_inconsistent_on((u64) g->dirty_sectors + sectors > ca->mi.bucket_size, c, + "bucket %u:%llu gen %u data type %s sector count overflow: %u + %u > bucket size", + ca->dev_idx, b, g->gen, + bch2_data_type_str(g->data_type ?: data_type), + g->dirty_sectors, sectors)) + goto err; + + g->data_type = data_type; + g->dirty_sectors += sectors; + struct bch_alloc_v4 new = bucket_m_to_alloc(*g); + bch2_dev_usage_update(c, ca, &old, &new, 0, true); + percpu_up_read(&c->mark_lock); + return 0; +err: + bucket_unlock(g); +err_unlock: + percpu_up_read(&c->mark_lock); + return -EIO; +} + int bch2_trans_mark_metadata_bucket(struct btree_trans *trans, - struct bch_dev *ca, size_t b, - enum bch_data_type type, - unsigned sectors) + struct bch_dev *ca, u64 b, + enum bch_data_type type, unsigned sectors, + enum btree_iter_update_trigger_flags flags) { - return commit_do(trans, NULL, NULL, 0, - __bch2_trans_mark_metadata_bucket(trans, ca, b, type, sectors)); + BUG_ON(type != BCH_DATA_free && + type != BCH_DATA_sb && + type != BCH_DATA_journal); + + /* + * Backup superblock might be past the end of our normal usable space: + */ + if (b >= ca->mi.nbuckets) + return 0; + + if (flags & BTREE_TRIGGER_gc) + return bch2_mark_metadata_bucket(trans->c, ca, b, type, sectors, flags); + else if (flags & BTREE_TRIGGER_transactional) + return commit_do(trans, NULL, NULL, 0, + __bch2_trans_mark_metadata_bucket(trans, ca, b, type, sectors)); + else + BUG(); } static int bch2_trans_mark_metadata_sectors(struct btree_trans *trans, - struct bch_dev *ca, - u64 start, u64 end, - enum bch_data_type type, - u64 *bucket, unsigned *bucket_sectors) + struct bch_dev *ca, u64 start, u64 end, + enum bch_data_type type, u64 *bucket, unsigned *bucket_sectors, + enum btree_iter_update_trigger_flags flags) { do { u64 b = sector_to_bucket(ca, start); @@ -1183,7 +1428,7 @@ static int bch2_trans_mark_metadata_sectors(struct btree_trans *trans, if (b != *bucket && *bucket_sectors) { int ret = bch2_trans_mark_metadata_bucket(trans, ca, *bucket, - type, *bucket_sectors); + type, *bucket_sectors, flags); if (ret) return ret; @@ -1198,8 +1443,8 @@ static int bch2_trans_mark_metadata_sectors(struct btree_trans *trans, return 0; } -static int __bch2_trans_mark_dev_sb(struct btree_trans *trans, - struct bch_dev *ca) +static int __bch2_trans_mark_dev_sb(struct btree_trans *trans, struct bch_dev *ca, + enum btree_iter_update_trigger_flags flags) { struct bch_sb_layout *layout = &ca->disk_sb.sb->layout; u64 bucket = 0; @@ -1212,21 +1457,21 @@ static int __bch2_trans_mark_dev_sb(struct btree_trans *trans, if (offset == BCH_SB_SECTOR) { ret = bch2_trans_mark_metadata_sectors(trans, ca, 0, BCH_SB_SECTOR, - BCH_DATA_sb, &bucket, &bucket_sectors); + BCH_DATA_sb, &bucket, &bucket_sectors, flags); if (ret) return ret; } ret = bch2_trans_mark_metadata_sectors(trans, ca, offset, offset + (1 << layout->sb_max_size_bits), - BCH_DATA_sb, &bucket, &bucket_sectors); + BCH_DATA_sb, &bucket, &bucket_sectors, flags); if (ret) return ret; } if (bucket_sectors) { ret = bch2_trans_mark_metadata_bucket(trans, ca, - bucket, BCH_DATA_sb, bucket_sectors); + bucket, BCH_DATA_sb, bucket_sectors, flags); if (ret) return ret; } @@ -1234,7 +1479,7 @@ static int __bch2_trans_mark_dev_sb(struct btree_trans *trans, for (i = 0; i < ca->journal.nr; i++) { ret = bch2_trans_mark_metadata_bucket(trans, ca, ca->journal.buckets[i], - BCH_DATA_journal, ca->mi.bucket_size); + BCH_DATA_journal, ca->mi.bucket_size, flags); if (ret) return ret; } @@ -1242,20 +1487,22 @@ static int __bch2_trans_mark_dev_sb(struct btree_trans *trans, return 0; } -int bch2_trans_mark_dev_sb(struct bch_fs *c, struct bch_dev *ca) +int bch2_trans_mark_dev_sb(struct bch_fs *c, struct bch_dev *ca, + enum btree_iter_update_trigger_flags flags) { - int ret = bch2_trans_run(c, __bch2_trans_mark_dev_sb(trans, ca)); - + int ret = bch2_trans_run(c, + __bch2_trans_mark_dev_sb(trans, ca, flags)); bch_err_fn(c, ret); return ret; } -int bch2_trans_mark_dev_sbs(struct bch_fs *c) +int bch2_trans_mark_dev_sbs_flags(struct bch_fs *c, + enum btree_iter_update_trigger_flags flags) { for_each_online_member(c, ca) { - int ret = bch2_trans_mark_dev_sb(c, ca); + int ret = bch2_trans_mark_dev_sb(c, ca, flags); if (ret) { - percpu_ref_put(&ca->ref); + percpu_ref_put(&ca->io_ref); return ret; } } @@ -1263,6 +1510,11 @@ int bch2_trans_mark_dev_sbs(struct bch_fs *c) return 0; } +int bch2_trans_mark_dev_sbs(struct bch_fs *c) +{ + return bch2_trans_mark_dev_sbs_flags(c, BTREE_TRIGGER_transactional); +} + /* Disk reservations: */ #define SECTORS_CACHE 1024 @@ -1331,6 +1583,31 @@ recalculate: /* Startup/shutdown: */ +void bch2_buckets_nouse_free(struct bch_fs *c) +{ + for_each_member_device(c, ca) { + kvfree_rcu_mightsleep(ca->buckets_nouse); + ca->buckets_nouse = NULL; + } +} + +int bch2_buckets_nouse_alloc(struct bch_fs *c) +{ + for_each_member_device(c, ca) { + BUG_ON(ca->buckets_nouse); + + ca->buckets_nouse = kvmalloc(BITS_TO_LONGS(ca->mi.nbuckets) * + sizeof(unsigned long), + GFP_KERNEL|__GFP_ZERO); + if (!ca->buckets_nouse) { + bch2_dev_put(ca); + return -BCH_ERR_ENOMEM_buckets_nouse; + } + } + + return 0; +} + static void bucket_gens_free_rcu(struct rcu_head *rcu) { struct bucket_gens *buckets = @@ -1342,26 +1619,21 @@ static void bucket_gens_free_rcu(struct rcu_head *rcu) int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets) { struct bucket_gens *bucket_gens = NULL, *old_bucket_gens = NULL; - unsigned long *buckets_nouse = NULL; bool resize = ca->bucket_gens != NULL; int ret; + BUG_ON(resize && ca->buckets_nouse); + if (!(bucket_gens = kvmalloc(sizeof(struct bucket_gens) + nbuckets, GFP_KERNEL|__GFP_ZERO))) { ret = -BCH_ERR_ENOMEM_bucket_gens; goto err; } - if ((c->opts.buckets_nouse && - !(buckets_nouse = kvmalloc(BITS_TO_LONGS(nbuckets) * - sizeof(unsigned long), - GFP_KERNEL|__GFP_ZERO)))) { - ret = -BCH_ERR_ENOMEM_buckets_nouse; - goto err; - } - bucket_gens->first_bucket = ca->mi.first_bucket; bucket_gens->nbuckets = nbuckets; + bucket_gens->nbuckets_minus_first = + bucket_gens->nbuckets - bucket_gens->first_bucket; if (resize) { down_write(&c->gc_lock); @@ -1377,17 +1649,11 @@ int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets) memcpy(bucket_gens->b, old_bucket_gens->b, n); - if (buckets_nouse) - memcpy(buckets_nouse, - ca->buckets_nouse, - BITS_TO_LONGS(n) * sizeof(unsigned long)); } rcu_assign_pointer(ca->bucket_gens, bucket_gens); bucket_gens = old_bucket_gens; - swap(ca->buckets_nouse, buckets_nouse); - nbuckets = ca->mi.nbuckets; if (resize) { @@ -1398,7 +1664,6 @@ int bch2_dev_buckets_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets) ret = 0; err: - kvfree(buckets_nouse); if (bucket_gens) call_rcu(&bucket_gens->rcu, bucket_gens_free_rcu); |