if (cur.k->k.type == KEY_TYPE_btree_ptr_v2) {
struct bkey_i_btree_ptr_v2 *bp = bkey_i_to_btree_ptr_v2(cur.k);
- if (bpos_cmp(expected_start, bp->v.min_key)) {
+ if (!bpos_eq(expected_start, bp->v.min_key)) {
bch2_topology_error(c);
if (bkey_deleted(&prev->k->k)) {
- pr_buf(&buf1, "start of node: ");
+ prt_printf(&buf1, "start of node: ");
bch2_bpos_to_text(&buf1, node_start);
} else {
bch2_bkey_val_to_text(&buf1, c, bkey_i_to_s_c(prev->k));
buf1.buf, buf2.buf) &&
!test_bit(BCH_FS_TOPOLOGY_REPAIR_DONE, &c->flags)) {
bch_info(c, "Halting mark and sweep to start topology repair pass");
- ret = FSCK_ERR_START_TOPOLOGY_REPAIR;
+ ret = -BCH_ERR_need_topology_repair;
goto err;
} else {
set_bit(BCH_FS_INITIAL_GC_UNFIXED, &c->flags);
}
}
- if (is_last && bpos_cmp(cur.k->k.p, node_end)) {
+ if (is_last && !bpos_eq(cur.k->k.p, node_end)) {
bch2_topology_error(c);
printbuf_reset(&buf1);
buf1.buf, buf2.buf) &&
!test_bit(BCH_FS_TOPOLOGY_REPAIR_DONE, &c->flags)) {
bch_info(c, "Halting mark and sweep to start topology repair pass");
- ret = FSCK_ERR_START_TOPOLOGY_REPAIR;
+ ret = -BCH_ERR_need_topology_repair;
goto err;
} else {
set_bit(BCH_FS_INITIAL_GC_UNFIXED, &c->flags);
}
}
-static void bch2_btree_node_update_key_early(struct bch_fs *c,
+static void bch2_btree_node_update_key_early(struct btree_trans *trans,
enum btree_id btree, unsigned level,
struct bkey_s_c old, struct bkey_i *new)
{
+ struct bch_fs *c = trans->c;
struct btree *b;
struct bkey_buf tmp;
int ret;
bch2_bkey_buf_init(&tmp);
bch2_bkey_buf_reassemble(&tmp, c, old);
- b = bch2_btree_node_get_noiter(c, tmp.k, btree, level, true);
+ b = bch2_btree_node_get_noiter(trans, tmp.k, btree, level, true);
if (!IS_ERR_OR_NULL(b)) {
mutex_lock(&c->btree_cache.lock);
struct bkey_i_btree_ptr_v2 *new;
int ret;
- new = kmalloc(BKEY_BTREE_PTR_U64s_MAX * sizeof(u64), GFP_KERNEL);
+ new = kmalloc_array(BKEY_BTREE_PTR_U64s_MAX, sizeof(u64), GFP_KERNEL);
if (!new)
return -ENOMEM;
if (ret)
return ret;
- new = kmalloc(BKEY_BTREE_PTR_U64s_MAX * sizeof(u64), GFP_KERNEL);
+ new = kmalloc_array(BKEY_BTREE_PTR_U64s_MAX, sizeof(u64), GFP_KERNEL);
if (!new)
return -ENOMEM;
int ret = 0;
if (!prev) {
- pr_buf(&buf1, "start of node: ");
+ prt_printf(&buf1, "start of node: ");
bch2_bpos_to_text(&buf1, b->data->min_key);
} else {
bch2_bkey_val_to_text(&buf1, c, bkey_i_to_s_c(&prev->key));
bch2_bkey_val_to_text(&buf2, c, bkey_i_to_s_c(&cur->key));
if (prev &&
- bpos_cmp(expected_start, cur->data->min_key) > 0 &&
+ bpos_gt(expected_start, cur->data->min_key) &&
BTREE_NODE_SEQ(cur->data) > BTREE_NODE_SEQ(prev->data)) {
/* cur overwrites prev: */
- if (mustfix_fsck_err_on(bpos_cmp(prev->data->min_key,
- cur->data->min_key) >= 0, c,
+ if (mustfix_fsck_err_on(bpos_ge(prev->data->min_key,
+ cur->data->min_key), c,
"btree node overwritten by next node at btree %s level %u:\n"
" node %s\n"
" next %s",
goto out;
}
- if (mustfix_fsck_err_on(bpos_cmp(prev->key.k.p,
+ if (mustfix_fsck_err_on(!bpos_eq(prev->key.k.p,
bpos_predecessor(cur->data->min_key)), c,
"btree node with incorrect max_key at btree %s level %u:\n"
" node %s\n"
} else {
/* prev overwrites cur: */
- if (mustfix_fsck_err_on(bpos_cmp(expected_start,
- cur->data->max_key) >= 0, c,
+ if (mustfix_fsck_err_on(bpos_ge(expected_start,
+ cur->data->max_key), c,
"btree node overwritten by prev node at btree %s level %u:\n"
" prev %s\n"
" node %s",
goto out;
}
- if (mustfix_fsck_err_on(bpos_cmp(expected_start, cur->data->min_key), c,
+ if (mustfix_fsck_err_on(!bpos_eq(expected_start, cur->data->min_key), c,
"btree node with incorrect min_key at btree %s level %u:\n"
" prev %s\n"
" node %s",
bch2_btree_ids[b->c.btree_id], b->c.level,
buf1.buf, buf2.buf))
- ret = set_node_min(c, cur, expected_start);
+ ret = set_node_min(c, cur, expected_start);
}
out:
fsck_err:
bch2_bkey_val_to_text(&buf1, c, bkey_i_to_s_c(&child->key));
bch2_bpos_to_text(&buf2, b->key.k.p);
- if (mustfix_fsck_err_on(bpos_cmp(child->key.k.p, b->key.k.p), c,
+ if (mustfix_fsck_err_on(!bpos_eq(child->key.k.p, b->key.k.p), c,
"btree node with incorrect max_key at btree %s level %u:\n"
" %s\n"
" expected %s",
return ret;
}
-static int bch2_btree_repair_topology_recurse(struct bch_fs *c, struct btree *b)
+static int bch2_btree_repair_topology_recurse(struct btree_trans *trans, struct btree *b)
{
+ struct bch_fs *c = trans->c;
struct btree_and_journal_iter iter;
struct bkey_s_c k;
struct bkey_buf prev_k, cur_k;
bch2_btree_and_journal_iter_init_node_iter(&iter, c, b);
while ((k = bch2_btree_and_journal_iter_peek(&iter)).k) {
- BUG_ON(bpos_cmp(k.k->p, b->data->min_key) < 0);
- BUG_ON(bpos_cmp(k.k->p, b->data->max_key) > 0);
+ BUG_ON(bpos_lt(k.k->p, b->data->min_key));
+ BUG_ON(bpos_gt(k.k->p, b->data->max_key));
bch2_btree_and_journal_iter_advance(&iter);
bch2_bkey_buf_reassemble(&cur_k, c, k);
- cur = bch2_btree_node_get_noiter(c, cur_k.k,
+ cur = bch2_btree_node_get_noiter(trans, cur_k.k,
b->c.btree_id, b->c.level - 1,
false);
ret = PTR_ERR_OR_ZERO(cur);
bch2_btree_ids[b->c.btree_id],
b->c.level - 1,
buf.buf)) {
- bch2_btree_node_evict(c, cur_k.k);
+ bch2_btree_node_evict(trans, cur_k.k);
ret = bch2_journal_key_delete(c, b->c.btree_id,
b->c.level, cur_k.k->k.p);
+ cur = NULL;
if (ret)
break;
continue;
}
if (ret) {
- bch_err(c, "%s: error %i getting btree node",
- __func__, ret);
+ bch_err(c, "%s: error getting btree node: %s",
+ __func__, bch2_err_str(ret));
break;
}
if (ret == DROP_THIS_NODE) {
six_unlock_read(&cur->c.lock);
- bch2_btree_node_evict(c, cur_k.k);
+ bch2_btree_node_evict(trans, cur_k.k);
ret = bch2_journal_key_delete(c, b->c.btree_id,
b->c.level, cur_k.k->k.p);
+ cur = NULL;
if (ret)
break;
continue;
prev = NULL;
if (ret == DROP_PREV_NODE) {
- bch2_btree_node_evict(c, prev_k.k);
+ bch2_btree_node_evict(trans, prev_k.k);
ret = bch2_journal_key_delete(c, b->c.btree_id,
b->c.level, prev_k.k->k.p);
if (ret)
bch2_bkey_buf_reassemble(&cur_k, c, k);
bch2_btree_and_journal_iter_advance(&iter);
- cur = bch2_btree_node_get_noiter(c, cur_k.k,
+ cur = bch2_btree_node_get_noiter(trans, cur_k.k,
b->c.btree_id, b->c.level - 1,
false);
ret = PTR_ERR_OR_ZERO(cur);
if (ret) {
- bch_err(c, "%s: error %i getting btree node",
- __func__, ret);
+ bch_err(c, "%s: error getting btree node: %s",
+ __func__, bch2_err_str(ret));
goto err;
}
- ret = bch2_btree_repair_topology_recurse(c, cur);
+ ret = bch2_btree_repair_topology_recurse(trans, cur);
six_unlock_read(&cur->c.lock);
cur = NULL;
if (ret == DROP_THIS_NODE) {
- bch2_btree_node_evict(c, cur_k.k);
+ bch2_btree_node_evict(trans, cur_k.k);
ret = bch2_journal_key_delete(c, b->c.btree_id,
b->c.level, cur_k.k->k.p);
dropped_children = true;
static int bch2_repair_topology(struct bch_fs *c)
{
+ struct btree_trans trans;
struct btree *b;
unsigned i;
int ret = 0;
+ bch2_trans_init(&trans, c, 0, 0);
+
for (i = 0; i < BTREE_ID_NR && !ret; i++) {
b = c->btree_roots[i].b;
if (btree_node_fake(b))
continue;
- six_lock_read(&b->c.lock, NULL, NULL);
- ret = bch2_btree_repair_topology_recurse(c, b);
+ btree_node_lock_nopath_nofail(&trans, &b->c, SIX_LOCK_read);
+ ret = bch2_btree_repair_topology_recurse(&trans, b);
six_unlock_read(&b->c.lock);
if (ret == DROP_THIS_NODE) {
bch_err(c, "empty btree root - repair unimplemented");
- ret = FSCK_ERR_EXIT;
+ ret = -BCH_ERR_fsck_repair_unimplemented;
}
}
+ bch2_trans_exit(&trans);
+
return ret;
}
-static int bch2_check_fix_ptrs(struct bch_fs *c, enum btree_id btree_id,
+static int bch2_check_fix_ptrs(struct btree_trans *trans, enum btree_id btree_id,
unsigned level, bool is_root,
struct bkey_s_c *k)
{
+ struct bch_fs *c = trans->c;
struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(*k);
const union bch_extent_entry *entry;
struct extent_ptr_decoded p = { 0 };
struct bucket *g = PTR_GC_BUCKET(ca, &p.ptr);
enum bch_data_type data_type = bch2_bkey_ptr_data_type(*k, &entry->ptr);
- if (fsck_err_on(!g->gen_valid, c,
+ if (c->opts.reconstruct_alloc ||
+ fsck_err_on(!g->gen_valid, c,
"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),
}
if (level)
- bch2_btree_node_update_key_early(c, btree_id, level - 1, *k, new);
+ bch2_btree_node_update_key_early(trans, btree_id, level - 1, *k, new);
- printbuf_reset(&buf);
- bch2_bkey_val_to_text(&buf, c, *k);
- bch_info(c, "updated %s", buf.buf);
+ if (c->opts.verbose) {
+ 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);
+ printbuf_reset(&buf);
+ bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(new));
+ bch_info(c, "new key %s", buf.buf);
+ }
*k = bkey_i_to_s_c(new);
}
BUG_ON(bch2_journal_seq_verify &&
k->k->version.lo > atomic64_read(&c->journal.seq));
- ret = bch2_check_fix_ptrs(c, btree_id, level, is_root, k);
+ ret = bch2_check_fix_ptrs(trans, btree_id, level, is_root, k);
if (ret)
goto err;
atomic64_set(&c->key_version, k->k->version.lo);
}
- ret = __bch2_trans_do(trans, NULL, NULL, 0,
+ ret = commit_do(trans, NULL, NULL, 0,
bch2_mark_key(trans, old, *k, flags));
fsck_err:
err:
if (ret)
- bch_err(c, "%s: ret %i", __func__, ret);
+ bch_err(c, "error from %s(): %s", __func__, bch2_err_str(ret));
return ret;
}
struct bch_fs *c = trans->c;
struct btree_iter iter;
struct btree *b;
- unsigned depth = metadata_only ? 1
- : bch2_expensive_debug_checks ? 0
- : !btree_node_type_needs_gc(btree_id) ? 1
- : 0;
+ unsigned depth = metadata_only ? 1 : 0;
int ret = 0;
gc_pos_set(c, gc_pos_btree(btree_id, POS_MIN, 0));
bkey_init(&prev.k->k);
while ((k = bch2_btree_and_journal_iter_peek(&iter)).k) {
- BUG_ON(bpos_cmp(k.k->p, b->data->min_key) < 0);
- BUG_ON(bpos_cmp(k.k->p, b->data->max_key) > 0);
+ BUG_ON(bpos_lt(k.k->p, b->data->min_key));
+ BUG_ON(bpos_gt(k.k->p, b->data->max_key));
ret = bch2_gc_mark_key(trans, b->c.btree_id, b->c.level,
false, &k, true);
if (ret) {
- bch_err(c, "%s: error %i from bch2_gc_mark_key", __func__, ret);
+ bch_err(c, "%s: error from bch2_gc_mark_key: %s",
+ __func__, bch2_err_str(ret));
goto fsck_err;
}
bch2_bkey_buf_reassemble(&cur, c, k);
bch2_btree_and_journal_iter_advance(&iter);
- child = bch2_btree_node_get_noiter(c, cur.k,
+ child = bch2_btree_node_get_noiter(trans, cur.k,
b->c.btree_id, b->c.level - 1,
false);
ret = PTR_ERR_OR_ZERO(child);
(printbuf_reset(&buf),
bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(cur.k)), buf.buf)) &&
!test_bit(BCH_FS_TOPOLOGY_REPAIR_DONE, &c->flags)) {
- ret = FSCK_ERR_START_TOPOLOGY_REPAIR;
+ ret = -BCH_ERR_need_topology_repair;
bch_info(c, "Halting mark and sweep to start topology repair pass");
goto fsck_err;
} else {
continue;
}
} else if (ret) {
- bch_err(c, "%s: error %i getting btree node",
- __func__, ret);
+ bch_err(c, "%s: error getting btree node: %s",
+ __func__, bch2_err_str(ret));
break;
}
{
struct bch_fs *c = trans->c;
struct btree *b;
- unsigned target_depth = metadata_only ? 1
- : bch2_expensive_debug_checks ? 0
- : !btree_node_type_needs_gc(btree_id) ? 1
- : 0;
+ unsigned target_depth = metadata_only ? 1 : 0;
struct printbuf buf = PRINTBUF;
int ret = 0;
six_lock_read(&b->c.lock, NULL, NULL);
printbuf_reset(&buf);
bch2_bpos_to_text(&buf, b->data->min_key);
- if (mustfix_fsck_err_on(bpos_cmp(b->data->min_key, POS_MIN), c,
+ if (mustfix_fsck_err_on(!bpos_eq(b->data->min_key, POS_MIN), c,
"btree root with incorrect min_key: %s", buf.buf)) {
bch_err(c, "repair unimplemented");
- ret = FSCK_ERR_EXIT;
+ ret = -BCH_ERR_fsck_repair_unimplemented;
goto fsck_err;
}
printbuf_reset(&buf);
bch2_bpos_to_text(&buf, b->data->max_key);
- if (mustfix_fsck_err_on(bpos_cmp(b->data->max_key, SPOS_MAX), c,
+ if (mustfix_fsck_err_on(!bpos_eq(b->data->max_key, SPOS_MAX), c,
"btree root with incorrect max_key: %s", buf.buf)) {
bch_err(c, "repair unimplemented");
- ret = FSCK_ERR_EXIT;
+ ret = -BCH_ERR_fsck_repair_unimplemented;
goto fsck_err;
}
six_unlock_read(&b->c.lock);
if (ret < 0)
- bch_err(c, "%s: ret %i", __func__, ret);
+ bch_err(c, "error from %s(): %s", __func__, bch2_err_str(ret));
printbuf_exit(&buf);
return ret;
}
: bch2_gc_btree(&trans, ids[i], initial, metadata_only);
if (ret < 0)
- bch_err(c, "%s: ret %i", __func__, ret);
+ bch_err(c, "error from %s(): %s", __func__, bch2_err_str(ret));
bch2_trans_exit(&trans);
return ret;
{
struct bch_dev *ca = NULL;
struct printbuf buf = PRINTBUF;
- bool verify = !metadata_only && (!initial ||
- (c->sb.compat & (1ULL << BCH_COMPAT_alloc_info)));
+ bool verify = !metadata_only &&
+ !c->opts.reconstruct_alloc &&
+ (!initial || (c->sb.compat & (1ULL << BCH_COMPAT_alloc_info)));
unsigned i, dev;
int ret = 0;
percpu_down_write(&c->mark_lock);
#define copy_field(_f, _msg, ...) \
- if (dst->_f != src->_f) { \
- if (verify) \
- fsck_err(c, _msg ": got %llu, should be %llu" \
- , ##__VA_ARGS__, dst->_f, src->_f); \
- dst->_f = src->_f; \
- }
+ if (dst->_f != src->_f && \
+ (!verify || \
+ fsck_err(c, _msg ": got %llu, should be %llu" \
+ , ##__VA_ARGS__, dst->_f, src->_f))) \
+ dst->_f = src->_f
#define copy_stripe_field(_f, _msg, ...) \
- if (dst->_f != src->_f) { \
- if (verify) \
- fsck_err(c, "stripe %zu has wrong "_msg \
- ": got %u, should be %u", \
- iter.pos, ##__VA_ARGS__, \
- dst->_f, src->_f); \
- dst->_f = src->_f; \
- }
+ if (dst->_f != src->_f && \
+ (!verify || \
+ fsck_err(c, "stripe %zu has wrong "_msg \
+ ": got %u, should be %u", \
+ iter.pos, ##__VA_ARGS__, \
+ dst->_f, src->_f))) \
+ dst->_f = src->_f
#define copy_dev_field(_f, _msg, ...) \
copy_field(_f, "dev %u has wrong " _msg, dev, ##__VA_ARGS__)
#define copy_fs_field(_f, _msg, ...) \
if (ca)
percpu_ref_put(&ca->ref);
if (ret)
- bch_err(c, "%s: ret %i", __func__, ret);
+ bch_err(c, "error from %s(): %s", __func__, bch2_err_str(ret));
percpu_up_write(&c->mark_lock);
printbuf_exit(&buf);
return ret;
}
-static int bch2_gc_start(struct bch_fs *c,
- bool metadata_only)
+static int bch2_gc_start(struct bch_fs *c)
{
struct bch_dev *ca = NULL;
unsigned i;
}
for_each_member_device(ca, c, i) {
- BUG_ON(ca->buckets_gc);
BUG_ON(ca->usage_gc);
ca->usage_gc = alloc_percpu(struct bch_dev_usage);
return 0;
}
+static int bch2_gc_reset(struct bch_fs *c)
+{
+ struct bch_dev *ca;
+ unsigned i;
+
+ for_each_member_device(ca, c, i) {
+ free_percpu(ca->usage_gc);
+ ca->usage_gc = NULL;
+ }
+
+ free_percpu(c->usage_gc);
+ c->usage_gc = NULL;
+
+ return bch2_gc_start(c);
+}
+
/* returns true if not equal */
static inline bool bch2_alloc_v4_cmp(struct bch_alloc_v4 l,
struct bch_alloc_v4 r)
static int bch2_alloc_write_key(struct btree_trans *trans,
struct btree_iter *iter,
+ struct bkey_s_c k,
bool metadata_only)
{
struct bch_fs *c = trans->c;
struct bch_dev *ca = bch_dev_bkey_exists(c, iter->pos.inode);
struct bucket gc, *b;
- struct bkey_s_c k;
struct bkey_i_alloc_v4 *a;
- struct bch_alloc_v4 old, new;
+ struct bch_alloc_v4 old_convert, new;
+ const struct bch_alloc_v4 *old;
enum bch_data_type type;
int ret;
- k = bch2_btree_iter_peek_slot(iter);
- ret = bkey_err(k);
- if (ret)
- return ret;
+ if (bkey_ge(iter->pos, POS(ca->dev_idx, ca->mi.nbuckets)))
+ return 1;
- bch2_alloc_to_v4(k, &old);
- new = old;
+ old = bch2_alloc_to_v4(k, &old_convert);
+ new = *old;
percpu_down_read(&c->mark_lock);
b = gc_bucket(ca, iter->pos.offset);
type = __alloc_data_type(b->dirty_sectors,
b->cached_sectors,
b->stripe,
- old,
+ *old,
b->data_type);
if (b->data_type != type) {
struct bch_dev_usage *u;
gc.data_type != BCH_DATA_btree)
return 0;
- if (gen_after(old.gen, gc.gen))
+ if (gen_after(old->gen, gc.gen))
return 0;
#define copy_bucket_field(_f) \
- if (fsck_err_on(new._f != gc._f, c, \
+ if (c->opts.reconstruct_alloc || \
+ fsck_err_on(new._f != gc._f, c, \
"bucket %llu:%llu gen %u data type %s has wrong " #_f \
": got %u, should be %u", \
iter->pos.inode, iter->pos.offset, \
copy_bucket_field(stripe);
#undef copy_bucket_field
- if (!bch2_alloc_v4_cmp(old, new))
+ if (!bch2_alloc_v4_cmp(*old, new))
return 0;
a = bch2_alloc_to_v4_mut(trans, k);
bch2_trans_init(&trans, c, 0, 0);
for_each_member_device(ca, c, i) {
- for_each_btree_key(&trans, iter, BTREE_ID_alloc,
- POS(ca->dev_idx, ca->mi.first_bucket),
- BTREE_ITER_SLOTS|
- BTREE_ITER_PREFETCH, k, ret) {
- if (bkey_cmp(iter.pos, POS(ca->dev_idx, ca->mi.nbuckets)) >= 0)
- break;
-
- ret = __bch2_trans_do(&trans, NULL, NULL,
- BTREE_INSERT_LAZY_RW,
- bch2_alloc_write_key(&trans, &iter,
- metadata_only));
- if (ret)
- break;
- }
- bch2_trans_iter_exit(&trans, &iter);
-
- if (ret) {
- bch_err(c, "error writing alloc info: %i", ret);
+ ret = for_each_btree_key_commit(&trans, iter, BTREE_ID_alloc,
+ POS(ca->dev_idx, ca->mi.first_bucket),
+ BTREE_ITER_SLOTS|BTREE_ITER_PREFETCH, k,
+ NULL, NULL, BTREE_INSERT_LAZY_RW,
+ bch2_alloc_write_key(&trans, &iter, k, metadata_only));
+
+ if (ret < 0) {
+ bch_err(c, "error writing alloc info: %s", bch2_err_str(ret));
percpu_ref_put(&ca->ref);
break;
}
}
bch2_trans_exit(&trans);
- return ret;
+ return ret < 0 ? ret : 0;
}
static int bch2_gc_alloc_start(struct bch_fs *c, bool metadata_only)
struct btree_iter iter;
struct bkey_s_c k;
struct bucket *g;
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 a_convert;
+ const struct bch_alloc_v4 *a;
unsigned i;
int ret;
ca = bch_dev_bkey_exists(c, k.k->p.inode);
g = gc_bucket(ca, k.k->p.offset);
- bch2_alloc_to_v4(k, &a);
+ a = bch2_alloc_to_v4(k, &a_convert);
g->gen_valid = 1;
- g->gen = a.gen;
+ g->gen = a->gen;
if (metadata_only &&
- (a.data_type == BCH_DATA_user ||
- a.data_type == BCH_DATA_cached ||
- a.data_type == BCH_DATA_parity)) {
- g->data_type = a.data_type;
- g->dirty_sectors = a.dirty_sectors;
- g->cached_sectors = a.cached_sectors;
- g->stripe = a.stripe;
- g->stripe_redundancy = a.stripe_redundancy;
+ (a->data_type == BCH_DATA_user ||
+ a->data_type == BCH_DATA_cached ||
+ a->data_type == BCH_DATA_parity)) {
+ g->data_type = a->data_type;
+ g->dirty_sectors = a->dirty_sectors;
+ g->cached_sectors = a->cached_sectors;
+ g->stripe = a->stripe;
+ g->stripe_redundancy = a->stripe_redundancy;
}
}
bch2_trans_iter_exit(&trans, &iter);
bch2_trans_exit(&trans);
if (ret)
- bch_err(c, "error reading alloc info at gc start: %i", ret);
+ bch_err(c, "error reading alloc info at gc start: %s", bch2_err_str(ret));
return ret;
}
};
}
-static int bch2_gc_reflink_done(struct bch_fs *c, bool metadata_only)
+static int bch2_gc_write_reflink_key(struct btree_trans *trans,
+ struct btree_iter *iter,
+ struct bkey_s_c k,
+ size_t *idx)
{
- struct btree_trans trans;
- struct btree_iter iter;
- struct bkey_s_c k;
- struct reflink_gc *r;
- size_t idx = 0;
+ struct bch_fs *c = trans->c;
+ const __le64 *refcount = bkey_refcount_c(k);
struct printbuf buf = PRINTBUF;
+ struct reflink_gc *r;
int ret = 0;
- if (metadata_only)
+ if (!refcount)
return 0;
- bch2_trans_init(&trans, c, 0, 0);
+ while ((r = genradix_ptr(&c->reflink_gc_table, *idx)) &&
+ r->offset < k.k->p.offset)
+ ++*idx;
- for_each_btree_key(&trans, iter, BTREE_ID_reflink, POS_MIN,
- BTREE_ITER_PREFETCH, k, ret) {
- const __le64 *refcount = bkey_refcount_c(k);
+ if (!r ||
+ r->offset != k.k->p.offset ||
+ r->size != k.k->size) {
+ bch_err(c, "unexpected inconsistency walking reflink table at gc finish");
+ return -EINVAL;
+ }
- if (!refcount)
- continue;
+ if (fsck_err_on(r->refcount != le64_to_cpu(*refcount), c,
+ "reflink key has wrong refcount:\n"
+ " %s\n"
+ " should be %u",
+ (bch2_bkey_val_to_text(&buf, c, k), buf.buf),
+ r->refcount)) {
+ struct bkey_i *new = bch2_bkey_make_mut(trans, k);
- r = genradix_ptr(&c->reflink_gc_table, idx++);
- if (!r ||
- r->offset != k.k->p.offset ||
- r->size != k.k->size) {
- bch_err(c, "unexpected inconsistency walking reflink table at gc finish");
- ret = -EINVAL;
- break;
- }
+ ret = PTR_ERR_OR_ZERO(new);
+ if (ret)
+ return ret;
- if (fsck_err_on(r->refcount != le64_to_cpu(*refcount), c,
- "reflink key has wrong refcount:\n"
- " %s\n"
- " should be %u",
- (printbuf_reset(&buf),
- bch2_bkey_val_to_text(&buf, c, k), buf.buf),
- r->refcount)) {
- struct bkey_i *new;
+ if (!r->refcount)
+ new->k.type = KEY_TYPE_deleted;
+ else
+ *bkey_refcount(new) = cpu_to_le64(r->refcount);
- new = kmalloc(bkey_bytes(k.k), GFP_KERNEL);
- if (!new) {
- ret = -ENOMEM;
- break;
- }
+ ret = bch2_trans_update(trans, iter, new, 0);
+ }
+fsck_err:
+ printbuf_exit(&buf);
+ return ret;
+}
- bkey_reassemble(new, k);
+static int bch2_gc_reflink_done(struct bch_fs *c, bool metadata_only)
+{
+ struct btree_trans trans;
+ struct btree_iter iter;
+ struct bkey_s_c k;
+ size_t idx = 0;
+ int ret = 0;
- if (!r->refcount)
- new->k.type = KEY_TYPE_deleted;
- else
- *bkey_refcount(new) = cpu_to_le64(r->refcount);
+ if (metadata_only)
+ return 0;
- ret = __bch2_trans_do(&trans, NULL, NULL, 0,
- __bch2_btree_insert(&trans, BTREE_ID_reflink, new));
- kfree(new);
+ bch2_trans_init(&trans, c, 0, 0);
+
+ ret = for_each_btree_key_commit(&trans, iter,
+ BTREE_ID_reflink, POS_MIN,
+ BTREE_ITER_PREFETCH, k,
+ NULL, NULL, BTREE_INSERT_NOFAIL,
+ bch2_gc_write_reflink_key(&trans, &iter, k, &idx));
- if (ret)
- break;
- }
- }
-fsck_err:
- bch2_trans_iter_exit(&trans, &iter);
c->reflink_gc_nr = 0;
bch2_trans_exit(&trans);
- printbuf_exit(&buf);
return ret;
}
r->refcount = 0;
}
-static int bch2_gc_stripes_done(struct bch_fs *c, bool metadata_only)
+static int bch2_gc_write_stripes_key(struct btree_trans *trans,
+ struct btree_iter *iter,
+ struct bkey_s_c k)
{
- struct btree_trans trans;
- struct btree_iter iter;
- struct bkey_s_c k;
- struct gc_stripe *m;
- const struct bch_stripe *s;
+ struct bch_fs *c = trans->c;
struct printbuf buf = PRINTBUF;
+ const struct bch_stripe *s;
+ struct gc_stripe *m;
unsigned i;
int ret = 0;
- if (metadata_only)
+ if (k.k->type != KEY_TYPE_stripe)
return 0;
- bch2_trans_init(&trans, c, 0, 0);
-
- for_each_btree_key(&trans, iter, BTREE_ID_stripes, POS_MIN,
- BTREE_ITER_PREFETCH, k, ret) {
- if (k.k->type != KEY_TYPE_stripe)
- continue;
-
- s = bkey_s_c_to_stripe(k).v;
- m = genradix_ptr(&c->gc_stripes, k.k->p.offset);
+ s = bkey_s_c_to_stripe(k).v;
+ m = genradix_ptr(&c->gc_stripes, k.k->p.offset);
- for (i = 0; i < s->nr_blocks; i++)
- if (stripe_blockcount_get(s, i) != (m ? m->block_sectors[i] : 0))
- goto inconsistent;
- continue;
+ for (i = 0; i < s->nr_blocks; i++)
+ if (stripe_blockcount_get(s, i) != (m ? m->block_sectors[i] : 0))
+ goto inconsistent;
+ return 0;
inconsistent:
- if (fsck_err_on(true, c,
- "stripe has wrong block sector count %u:\n"
- " %s\n"
- " should be %u", i,
- (printbuf_reset(&buf),
- bch2_bkey_val_to_text(&buf, c, k), buf.buf),
- m ? m->block_sectors[i] : 0)) {
- struct bkey_i_stripe *new;
-
- new = kmalloc(bkey_bytes(k.k), GFP_KERNEL);
- if (!new) {
- ret = -ENOMEM;
- break;
- }
+ if (fsck_err_on(true, c,
+ "stripe has wrong block sector count %u:\n"
+ " %s\n"
+ " should be %u", i,
+ (printbuf_reset(&buf),
+ bch2_bkey_val_to_text(&buf, c, k), buf.buf),
+ m ? m->block_sectors[i] : 0)) {
+ struct bkey_i_stripe *new;
+
+ new = bch2_trans_kmalloc(trans, bkey_bytes(k.k));
+ ret = PTR_ERR_OR_ZERO(new);
+ if (ret)
+ return ret;
- bkey_reassemble(&new->k_i, k);
+ bkey_reassemble(&new->k_i, k);
- for (i = 0; i < new->v.nr_blocks; i++)
- stripe_blockcount_set(&new->v, i, m ? m->block_sectors[i] : 0);
+ for (i = 0; i < new->v.nr_blocks; i++)
+ stripe_blockcount_set(&new->v, i, m ? m->block_sectors[i] : 0);
- ret = __bch2_trans_do(&trans, NULL, NULL, 0,
- __bch2_btree_insert(&trans, BTREE_ID_reflink, &new->k_i));
- kfree(new);
- }
+ ret = bch2_trans_update(trans, iter, &new->k_i, 0);
}
fsck_err:
- bch2_trans_iter_exit(&trans, &iter);
+ printbuf_exit(&buf);
+ return ret;
+}
- bch2_trans_exit(&trans);
+static int bch2_gc_stripes_done(struct bch_fs *c, bool metadata_only)
+{
+ struct btree_trans trans;
+ struct btree_iter iter;
+ struct bkey_s_c k;
+ int ret = 0;
- printbuf_exit(&buf);
+ if (metadata_only)
+ return 0;
+
+ bch2_trans_init(&trans, c, 0, 0);
+
+ ret = for_each_btree_key_commit(&trans, iter,
+ BTREE_ID_stripes, POS_MIN,
+ BTREE_ITER_PREFETCH, k,
+ NULL, NULL, BTREE_INSERT_NOFAIL,
+ bch2_gc_write_stripes_key(&trans, &iter, k));
+
+ bch2_trans_exit(&trans);
return ret;
}
*/
int bch2_gc(struct bch_fs *c, bool initial, bool metadata_only)
{
- u64 start_time = local_clock();
unsigned iter = 0;
int ret;
lockdep_assert_held(&c->state_lock);
- trace_gc_start(c);
down_write(&c->gc_lock);
- /* flush interior btree updates: */
- closure_wait_event(&c->btree_interior_update_wait,
- !bch2_btree_interior_updates_nr_pending(c));
+ bch2_btree_interior_updates_flush(c);
- ret = bch2_gc_start(c, metadata_only) ?:
+ ret = bch2_gc_start(c) ?:
bch2_gc_alloc_start(c, metadata_only) ?:
bch2_gc_reflink_start(c, metadata_only);
if (ret)
ret = bch2_gc_btrees(c, initial, metadata_only);
- if (ret == FSCK_ERR_START_TOPOLOGY_REPAIR &&
+ if (ret == -BCH_ERR_need_topology_repair &&
!test_bit(BCH_FS_TOPOLOGY_REPAIR_DONE, &c->flags) &&
!test_bit(BCH_FS_INITIAL_GC_DONE, &c->flags)) {
set_bit(BCH_FS_NEED_ANOTHER_GC, &c->flags);
ret = 0;
}
- if (ret == FSCK_ERR_START_TOPOLOGY_REPAIR)
- ret = FSCK_ERR_EXIT;
+ if (ret == -BCH_ERR_need_topology_repair)
+ ret = -BCH_ERR_fsck_errors_not_fixed;
if (ret)
goto out;
bch2_gc_stripes_reset(c, metadata_only);
bch2_gc_alloc_reset(c, metadata_only);
bch2_gc_reflink_reset(c, metadata_only);
+ ret = bch2_gc_reset(c);
+ if (ret)
+ goto out;
/* flush fsck errors, reset counters */
bch2_flush_fsck_errs(c);
up_write(&c->gc_lock);
- trace_gc_end(c);
- bch2_time_stats_update(&c->times[BCH_TIME_btree_gc], start_time);
-
/*
* At startup, allocations can happen directly instead of via the
* allocator thread - issue wakeup in case they blocked on gc_lock:
return ret;
}
-static bool gc_btree_gens_key(struct bch_fs *c, struct bkey_s_c k)
+static int gc_btree_gens_key(struct btree_trans *trans,
+ struct btree_iter *iter,
+ struct bkey_s_c k)
{
+ struct bch_fs *c = trans->c;
struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(k);
const struct bch_extent_ptr *ptr;
+ struct bkey_i *u;
+ int ret;
percpu_down_read(&c->mark_lock);
bkey_for_each_ptr(ptrs, ptr) {
if (ptr_stale(ca, ptr) > 16) {
percpu_up_read(&c->mark_lock);
- return true;
+ goto update;
}
}
*gen = ptr->gen;
}
percpu_up_read(&c->mark_lock);
+ return 0;
+update:
+ u = bch2_bkey_make_mut(trans, k);
+ ret = PTR_ERR_OR_ZERO(u);
+ if (ret)
+ return ret;
- return false;
-}
-
-/*
- * For recalculating oldest gen, we only need to walk keys in leaf nodes; btree
- * node pointers currently never have cached pointers that can become stale:
- */
-static int bch2_gc_btree_gens(struct btree_trans *trans, enum btree_id btree_id)
-{
- struct bch_fs *c = trans->c;
- struct btree_iter iter;
- struct bkey_s_c k;
- struct bkey_buf sk;
- int ret = 0, commit_err = 0;
-
- bch2_bkey_buf_init(&sk);
-
- bch2_trans_iter_init(trans, &iter, btree_id, POS_MIN,
- BTREE_ITER_PREFETCH|
- BTREE_ITER_NOT_EXTENTS|
- BTREE_ITER_ALL_SNAPSHOTS);
-
- while ((bch2_trans_begin(trans),
- k = bch2_btree_iter_peek(&iter)).k) {
- ret = bkey_err(k);
-
- if (ret == -EINTR)
- continue;
- if (ret)
- break;
-
- c->gc_gens_pos = iter.pos;
-
- if (gc_btree_gens_key(c, k) && !commit_err) {
- bch2_bkey_buf_reassemble(&sk, c, k);
- bch2_extent_normalize(c, bkey_i_to_s(sk.k));
-
- commit_err =
- bch2_trans_update(trans, &iter, sk.k, 0) ?:
- bch2_trans_commit(trans, NULL, NULL,
- BTREE_INSERT_NOWAIT|
- BTREE_INSERT_NOFAIL);
- if (commit_err == -EINTR) {
- commit_err = 0;
- continue;
- }
- }
-
- bch2_btree_iter_advance(&iter);
- }
- bch2_trans_iter_exit(trans, &iter);
-
- bch2_bkey_buf_exit(&sk, c);
-
- return ret;
+ bch2_extent_normalize(c, bkey_i_to_s(u));
+ return bch2_trans_update(trans, iter, u, 0);
}
-static int bch2_alloc_write_oldest_gen(struct btree_trans *trans, struct btree_iter *iter)
+static int bch2_alloc_write_oldest_gen(struct btree_trans *trans, struct btree_iter *iter,
+ struct bkey_s_c k)
{
struct bch_dev *ca = bch_dev_bkey_exists(trans->c, iter->pos.inode);
- struct bkey_s_c k;
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 a_convert;
+ const struct bch_alloc_v4 *a = bch2_alloc_to_v4(k, &a_convert);
struct bkey_i_alloc_v4 *a_mut;
int ret;
- k = bch2_btree_iter_peek_slot(iter);
- ret = bkey_err(k);
- if (ret)
- return ret;
-
- bch2_alloc_to_v4(k, &a);
-
- if (a.oldest_gen == ca->oldest_gen[iter->pos.offset])
+ if (a->oldest_gen == ca->oldest_gen[iter->pos.offset])
return 0;
a_mut = bch2_alloc_to_v4_mut(trans, k);
if (!mutex_trylock(&c->gc_gens_lock))
return 0;
+ trace_and_count(c, gc_gens_start, c);
down_read(&c->gc_lock);
bch2_trans_init(&trans, c, 0, 0);
}
for (i = 0; i < BTREE_ID_NR; i++)
- if ((1 << i) & BTREE_ID_HAS_PTRS) {
+ if (btree_type_has_ptrs(i)) {
+ struct btree_iter iter;
+ struct bkey_s_c k;
+
c->gc_gens_btree = i;
c->gc_gens_pos = POS_MIN;
- ret = bch2_gc_btree_gens(&trans, i);
- if (ret) {
- bch_err(c, "error recalculating oldest_gen: %i", ret);
+ ret = for_each_btree_key_commit(&trans, iter, i,
+ POS_MIN,
+ BTREE_ITER_PREFETCH|BTREE_ITER_ALL_SNAPSHOTS,
+ k,
+ NULL, NULL,
+ BTREE_INSERT_NOFAIL,
+ gc_btree_gens_key(&trans, &iter, k));
+ if (ret && !bch2_err_matches(ret, EROFS))
+ bch_err(c, "error recalculating oldest_gen: %s", bch2_err_str(ret));
+ if (ret)
goto err;
- }
}
- for_each_btree_key(&trans, iter, BTREE_ID_alloc, POS_MIN,
- BTREE_ITER_PREFETCH, k, ret) {
- ret = __bch2_trans_do(&trans, NULL, NULL,
- BTREE_INSERT_NOFAIL,
- bch2_alloc_write_oldest_gen(&trans, &iter));
- if (ret) {
- bch_err(c, "error writing oldest_gen: %i", ret);
- break;
- }
- }
- bch2_trans_iter_exit(&trans, &iter);
+ ret = for_each_btree_key_commit(&trans, iter, BTREE_ID_alloc,
+ POS_MIN,
+ BTREE_ITER_PREFETCH,
+ k,
+ NULL, NULL,
+ BTREE_INSERT_NOFAIL,
+ bch2_alloc_write_oldest_gen(&trans, &iter, k));
+ if (ret && !bch2_err_matches(ret, EROFS))
+ bch_err(c, "error writing oldest_gen: %s", bch2_err_str(ret));
+ if (ret)
+ goto err;
c->gc_gens_btree = 0;
c->gc_gens_pos = POS_MIN;
c->gc_count++;
bch2_time_stats_update(&c->times[BCH_TIME_btree_gc], start_time);
+ trace_and_count(c, gc_gens_end, c);
err:
for_each_member_device(ca, c, i) {
kvfree(ca->oldest_gen);
ret = bch2_gc_gens(c);
#endif
if (ret < 0)
- bch_err(c, "btree gc failed: %i", ret);
+ bch_err(c, "btree gc failed: %s", bch2_err_str(ret));
debug_check_no_locks_held();
}
p = kthread_create(bch2_gc_thread, c, "bch-gc/%s", c->name);
if (IS_ERR(p)) {
- bch_err(c, "error creating gc thread: %li", PTR_ERR(p));
+ bch_err(c, "error creating gc thread: %s", bch2_err_str(PTR_ERR(p)));
return PTR_ERR(p);
}
projects / bcachefs-tools-debian / blobdiff