#include "btree_iter.h"
#include "btree_key_cache.h"
#include "btree_locking.h"
+#include "btree_write_buffer.h"
#include "buckets.h"
#include "debug.h"
#include "errcode.h"
k = bkey_i_to_s_c(j_k);
}
- i->old_k.needs_whiteout = k.k->needs_whiteout;
+ u = *k.k;
+ u.needs_whiteout = i->old_k.needs_whiteout;
- BUG_ON(memcmp(&i->old_k, k.k, sizeof(struct bkey)));
+ BUG_ON(memcmp(&i->old_k, &u, sizeof(struct bkey)));
BUG_ON(i->old_v != k.v);
#endif
}
{
struct bch_fs *c = trans->c;
- if (path->cached)
- return;
-
if (unlikely(btree_node_just_written(b)) &&
bch2_btree_post_write_cleanup(c, b))
bch2_trans_node_reinit_iter(trans, b);
/**
* btree_insert_key - insert a key one key into a leaf node
*/
-static void btree_insert_key_leaf(struct btree_trans *trans,
- struct btree_insert_entry *insert)
+inline void bch2_btree_insert_key_leaf(struct btree_trans *trans,
+ struct btree_path *path,
+ struct bkey_i *insert,
+ u64 journal_seq)
{
struct bch_fs *c = trans->c;
- struct btree *b = insert_l(insert)->b;
+ struct btree *b = path_l(path)->b;
struct bset_tree *t = bset_tree_last(b);
struct bset *i = bset(b, t);
int old_u64s = bset_u64s(t);
int old_live_u64s = b->nr.live_u64s;
int live_u64s_added, u64s_added;
- if (unlikely(!bch2_btree_bset_insert_key(trans, insert->path, b,
- &insert_l(insert)->iter, insert->k)))
+ if (unlikely(!bch2_btree_bset_insert_key(trans, path, b,
+ &path_l(path)->iter, insert)))
return;
- i->journal_seq = cpu_to_le64(max(trans->journal_res.seq,
- le64_to_cpu(i->journal_seq)));
+ i->journal_seq = cpu_to_le64(max(journal_seq, le64_to_cpu(i->journal_seq)));
- bch2_btree_add_journal_pin(c, b, trans->journal_res.seq);
+ bch2_btree_add_journal_pin(c, b, journal_seq);
if (unlikely(!btree_node_dirty(b)))
set_btree_node_dirty_acct(c, b);
bch2_trans_node_reinit_iter(trans, b);
}
+static void btree_insert_key_leaf(struct btree_trans *trans,
+ struct btree_insert_entry *insert)
+{
+ bch2_btree_insert_key_leaf(trans, insert->path, insert->k, trans->journal_res.seq);
+}
+
/* Cached btree updates: */
/* Normal update interface: */
}
static noinline int
-bch2_trans_journal_preres_get_cold(struct btree_trans *trans, unsigned u64s,
+bch2_trans_journal_preres_get_cold(struct btree_trans *trans, unsigned flags,
unsigned long trace_ip)
{
struct bch_fs *c = trans->c;
bch2_trans_unlock(trans);
ret = bch2_journal_preres_get(&c->journal,
- &trans->journal_preres, u64s, 0);
+ &trans->journal_preres,
+ trans->journal_preres_u64s,
+ (flags & JOURNAL_WATERMARK_MASK));
if (ret)
return ret;
{
struct bch_fs *c = trans->c;
struct btree_insert_entry *i;
+ struct btree_write_buffered_key *wb;
struct btree_trans_commit_hook *h;
unsigned u64s = 0;
bool marking = false;
marking = true;
}
+ if (trans->nr_wb_updates &&
+ trans->nr_wb_updates + c->btree_write_buffer.state.nr > c->btree_write_buffer.size)
+ return -BCH_ERR_btree_insert_need_flush_buffer;
+
/*
* Don't get journal reservation until after we know insert will
* succeed:
bch2_trans_fs_usage_apply(trans, trans->fs_usage_deltas))
return -BCH_ERR_btree_insert_need_mark_replicas;
+ if (trans->nr_wb_updates) {
+ EBUG_ON(flags & BTREE_INSERT_JOURNAL_REPLAY);
+
+ ret = bch2_btree_insert_keys_write_buffer(trans);
+ if (ret)
+ goto revert_fs_usage;
+ }
+
trans_for_each_update(trans, i)
if (BTREE_NODE_TYPE_HAS_MEM_TRIGGERS & (1U << i->bkey_type)) {
ret = run_one_mem_trigger(trans, i, i->flags);
if (ret)
- return ret;
+ goto fatal_err;
}
if (unlikely(c->gc_pos.phase)) {
ret = bch2_trans_commit_run_gc_triggers(trans);
if (ret)
- return ret;
+ goto fatal_err;
}
if (unlikely(trans->extra_journal_entries.nr)) {
}
if (likely(!(flags & BTREE_INSERT_JOURNAL_REPLAY))) {
- trans_for_each_update(trans, i) {
- struct journal *j = &c->journal;
- struct jset_entry *entry;
+ struct journal *j = &c->journal;
+ struct jset_entry *entry;
+ trans_for_each_update(trans, i) {
if (i->key_cache_already_flushed)
continue;
bkey_copy(&entry->start[0], i->k);
}
+ trans_for_each_wb_update(trans, wb) {
+ entry = bch2_journal_add_entry(j, &trans->journal_res,
+ BCH_JSET_ENTRY_btree_keys,
+ wb->btree, 0,
+ wb->k.k.u64s);
+ bkey_copy(&entry->start[0], &wb->k);
+ }
+
if (trans->journal_seq)
*trans->journal_seq = trans->journal_res.seq;
}
}
}
+ return 0;
+fatal_err:
+ bch2_fatal_error(c);
+revert_fs_usage:
+ if (trans->fs_usage_deltas)
+ bch2_trans_fs_usage_revert(trans, trans->fs_usage_deltas);
return ret;
}
if (bch2_btree_node_lock_write(trans, i->path, &insert_l(i)->b->c))
return trans_lock_write_fail(trans, i);
- bch2_btree_node_prep_for_write(trans, i->path, insert_l(i)->b);
+ if (!i->cached)
+ bch2_btree_node_prep_for_write(trans, i->path, insert_l(i)->b);
}
return 0;
static noinline void bch2_drop_overwrites_from_journal(struct btree_trans *trans)
{
struct btree_insert_entry *i;
+ struct btree_write_buffered_key *wb;
trans_for_each_update(trans, i)
bch2_journal_key_overwritten(trans->c, i->btree_id, i->level, i->k->k.p);
+
+ trans_for_each_wb_update(trans, wb)
+ bch2_journal_key_overwritten(trans->c, wb->btree, 0, wb->k.k.p);
}
#ifdef CONFIG_BCACHEFS_DEBUG
{
struct bch_fs *c = trans->c;
struct btree_insert_entry *i;
- struct printbuf buf = PRINTBUF;
int ret, u64s_delta = 0;
#ifdef CONFIG_BCACHEFS_DEBUG
+ struct printbuf buf = PRINTBUF;
+
trans_for_each_update(trans, i) {
int rw = (flags & BTREE_INSERT_JOURNAL_REPLAY) ? READ : WRITE;
return bch2_trans_commit_bkey_invalid(trans, flags, i, &buf);
btree_insert_entry_checks(trans, i);
}
-#endif
printbuf_exit(&buf);
+#endif
trans_for_each_update(trans, i) {
if (i->cached)
&trans->journal_preres, trans->journal_preres_u64s,
(flags & JOURNAL_WATERMARK_MASK)|JOURNAL_RES_GET_NONBLOCK);
if (unlikely(ret == -BCH_ERR_journal_preres_get_blocked))
- ret = bch2_trans_journal_preres_get_cold(trans,
- trans->journal_preres_u64s, trace_ip);
+ ret = bch2_trans_journal_preres_get_cold(trans, flags, trace_ip);
if (unlikely(ret))
return ret;
break;
}
- ret = bch2_trans_journal_res_get(trans, JOURNAL_RES_GET_CHECK);
+ ret = bch2_trans_journal_res_get(trans,
+ (flags & JOURNAL_WATERMARK_MASK)|
+ JOURNAL_RES_GET_CHECK);
if (ret)
break;
if (ret)
trace_and_count(c, trans_restart_journal_reclaim, trans, trace_ip);
break;
+ case -BCH_ERR_btree_insert_need_flush_buffer: {
+ struct btree_write_buffer *wb = &c->btree_write_buffer;
+
+ ret = 0;
+
+ if (wb->state.nr > wb->size * 3 / 4) {
+ bch2_trans_reset_updates(trans);
+ bch2_trans_unlock(trans);
+
+ mutex_lock(&wb->flush_lock);
+
+ if (wb->state.nr > wb->size * 3 / 4)
+ ret = __bch2_btree_write_buffer_flush(trans,
+ flags|BTREE_INSERT_NOCHECK_RW, true);
+ else
+ mutex_unlock(&wb->flush_lock);
+
+ if (!ret) {
+ trace_and_count(c, trans_restart_write_buffer_flush, trans, _THIS_IP_);
+ ret = btree_trans_restart(trans, BCH_ERR_transaction_restart_write_buffer_flush);
+ }
+ }
+ break;
+ }
default:
BUG_ON(ret >= 0);
break;
{
struct bch_fs *c = trans->c;
struct btree_insert_entry *i = NULL;
+ struct btree_write_buffered_key *wb;
unsigned u64s;
int ret = 0;
if (!trans->nr_updates &&
+ !trans->nr_wb_updates &&
!trans->extra_journal_entries.nr)
goto out_reset;
goto out_reset;
}
+ if (c->btree_write_buffer.state.nr > c->btree_write_buffer.size / 2 &&
+ mutex_trylock(&c->btree_write_buffer.flush_lock)) {
+ bch2_trans_begin(trans);
+ bch2_trans_unlock(trans);
+
+ ret = __bch2_btree_write_buffer_flush(trans,
+ flags|BTREE_INSERT_NOCHECK_RW, true);
+ if (!ret) {
+ trace_and_count(c, trans_restart_write_buffer_flush, trans, _THIS_IP_);
+ ret = btree_trans_restart(trans, BCH_ERR_transaction_restart_write_buffer_flush);
+ }
+ goto out;
+ }
+
EBUG_ON(test_bit(BCH_FS_CLEAN_SHUTDOWN, &c->flags));
memset(&trans->journal_preres, 0, sizeof(trans->journal_preres));
trans->journal_u64s += jset_u64s(i->old_k.u64s);
}
+ trans_for_each_wb_update(trans, wb)
+ trans->journal_u64s += jset_u64s(wb->k.k.u64s);
+
if (trans->extra_journal_res) {
ret = bch2_disk_reservation_add(c, trans->disk_res,
trans->extra_journal_res,
return 0;
}
+/*
+ * When deleting, check if we need to emit a whiteout (because we're overwriting
+ * something in an ancestor snapshot)
+ */
+static int need_whiteout_for_snapshot(struct btree_trans *trans,
+ enum btree_id btree_id, struct bpos pos)
+{
+ struct btree_iter iter;
+ struct bkey_s_c k;
+ u32 snapshot = pos.snapshot;
+ int ret;
+
+ if (!bch2_snapshot_parent(trans->c, pos.snapshot))
+ return 0;
+
+ pos.snapshot++;
+
+ for_each_btree_key_norestart(trans, iter, btree_id, pos,
+ BTREE_ITER_ALL_SNAPSHOTS|
+ BTREE_ITER_NOPRESERVE, k, ret) {
+ if (!bkey_eq(k.k->p, pos))
+ break;
+
+ if (bch2_snapshot_is_ancestor(trans->c, snapshot,
+ k.k->p.snapshot)) {
+ ret = !bkey_whiteout(k.k);
+ break;
+ }
+ }
+ bch2_trans_iter_exit(trans, &iter);
+
+ return ret;
+}
int bch2_trans_update_extent(struct btree_trans *trans,
struct btree_iter *orig_iter,
struct bkey_i *insert,
enum btree_update_flags flags)
{
- struct btree_iter iter, update_iter;
+ struct btree_iter iter;
struct bpos start = bkey_start_pos(&insert->k);
struct bkey_i *update;
struct bkey_s_c k;
bch2_cut_back(start, update);
- bch2_trans_iter_init(trans, &update_iter, btree_id, update->k.p,
- BTREE_ITER_NOT_EXTENTS|
- BTREE_ITER_ALL_SNAPSHOTS|
- BTREE_ITER_INTENT);
- ret = bch2_btree_iter_traverse(&update_iter) ?:
- bch2_trans_update(trans, &update_iter, update,
- BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|
- flags);
- bch2_trans_iter_exit(trans, &update_iter);
-
+ ret = bch2_btree_insert_nonextent(trans, btree_id, update,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|flags);
if (ret)
goto err;
}
bch2_cut_front(start, update);
bch2_cut_back(insert->k.p, update);
- bch2_trans_iter_init(trans, &update_iter, btree_id, update->k.p,
- BTREE_ITER_NOT_EXTENTS|
- BTREE_ITER_ALL_SNAPSHOTS|
- BTREE_ITER_INTENT);
- ret = bch2_btree_iter_traverse(&update_iter) ?:
- bch2_trans_update(trans, &update_iter, update,
- BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|
- flags);
- bch2_trans_iter_exit(trans, &update_iter);
+ ret = bch2_btree_insert_nonextent(trans, btree_id, update,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|flags);
if (ret)
goto err;
}
bkey_init(&update->k);
update->k.p = k.k->p;
+ update->k.p.snapshot = insert->k.p.snapshot;
- if (insert->k.p.snapshot != k.k->p.snapshot) {
- update->k.p.snapshot = insert->k.p.snapshot;
+ if (insert->k.p.snapshot != k.k->p.snapshot ||
+ (btree_type_has_snapshots(btree_id) &&
+ need_whiteout_for_snapshot(trans, btree_id, update->k.p)))
update->k.type = KEY_TYPE_whiteout;
- }
-
- bch2_trans_iter_init(trans, &update_iter, btree_id, update->k.p,
- BTREE_ITER_NOT_EXTENTS|
- BTREE_ITER_INTENT);
- ret = bch2_btree_iter_traverse(&update_iter) ?:
- bch2_trans_update(trans, &update_iter, update,
- BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|
- flags);
- bch2_trans_iter_exit(trans, &update_iter);
+ ret = bch2_btree_insert_nonextent(trans, btree_id, update,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|flags);
if (ret)
goto err;
}
return ret;
}
-/*
- * When deleting, check if we need to emit a whiteout (because we're overwriting
- * something in an ancestor snapshot)
- */
-static int need_whiteout_for_snapshot(struct btree_trans *trans,
- enum btree_id btree_id, struct bpos pos)
-{
- struct btree_iter iter;
- struct bkey_s_c k;
- u32 snapshot = pos.snapshot;
- int ret;
-
- if (!bch2_snapshot_parent(trans->c, pos.snapshot))
- return 0;
-
- pos.snapshot++;
-
- for_each_btree_key_norestart(trans, iter, btree_id, pos,
- BTREE_ITER_ALL_SNAPSHOTS|
- BTREE_ITER_NOPRESERVE, k, ret) {
- if (!bkey_eq(k.k->p, pos))
- break;
-
- if (bch2_snapshot_is_ancestor(trans->c, snapshot,
- k.k->p.snapshot)) {
- ret = !bkey_whiteout(k.k);
- break;
- }
- }
- bch2_trans_iter_exit(trans, &iter);
-
- return ret;
-}
-
static int __must_check
bch2_trans_update_by_path_trace(struct btree_trans *trans, struct btree_path *path,
struct bkey_i *k, enum btree_update_flags flags,
return bch2_trans_update_by_path(trans, path, k, flags);
}
+int __must_check bch2_trans_update_buffered(struct btree_trans *trans,
+ enum btree_id btree,
+ struct bkey_i *k)
+{
+ struct btree_write_buffered_key *i;
+ int ret;
+
+ EBUG_ON(trans->nr_wb_updates > trans->wb_updates_size);
+ EBUG_ON(k->k.u64s > BTREE_WRITE_BUFERED_U64s_MAX);
+
+ trans_for_each_wb_update(trans, i) {
+ if (i->btree == btree && bpos_eq(i->k.k.p, k->k.p)) {
+ bkey_copy(&i->k, k);
+ return 0;
+ }
+ }
+
+ if (!trans->wb_updates ||
+ trans->nr_wb_updates == trans->wb_updates_size) {
+ struct btree_write_buffered_key *u;
+
+ if (trans->nr_wb_updates == trans->wb_updates_size) {
+ struct btree_transaction_stats *s = btree_trans_stats(trans);
+
+ BUG_ON(trans->wb_updates_size > U8_MAX / 2);
+ trans->wb_updates_size = max(1, trans->wb_updates_size * 2);
+ if (s)
+ s->wb_updates_size = trans->wb_updates_size;
+ }
+
+ u = bch2_trans_kmalloc_nomemzero(trans,
+ trans->wb_updates_size *
+ sizeof(struct btree_write_buffered_key));
+ ret = PTR_ERR_OR_ZERO(u);
+ if (ret)
+ return ret;
+
+ if (trans->nr_wb_updates)
+ memcpy(u, trans->wb_updates, trans->nr_wb_updates *
+ sizeof(struct btree_write_buffered_key));
+ trans->wb_updates = u;
+ }
+
+ trans->wb_updates[trans->nr_wb_updates] = (struct btree_write_buffered_key) {
+ .btree = btree,
+ };
+
+ bkey_copy(&trans->wb_updates[trans->nr_wb_updates].k, k);
+ trans->nr_wb_updates++;
+
+ return 0;
+}
+
void bch2_trans_commit_hook(struct btree_trans *trans,
struct btree_trans_commit_hook *h)
{
trans->hooks = h;
}
-int __bch2_btree_insert(struct btree_trans *trans,
- enum btree_id id, struct bkey_i *k)
+int bch2_btree_insert_nonextent(struct btree_trans *trans,
+ enum btree_id btree, struct bkey_i *k,
+ enum btree_update_flags flags)
+{
+ struct btree_iter iter;
+ int ret;
+
+ bch2_trans_iter_init(trans, &iter, btree, k->k.p,
+ BTREE_ITER_NOT_EXTENTS|
+ BTREE_ITER_INTENT);
+ ret = bch2_btree_iter_traverse(&iter) ?:
+ bch2_trans_update(trans, &iter, k, flags);
+ bch2_trans_iter_exit(trans, &iter);
+ return ret;
+}
+
+int __bch2_btree_insert(struct btree_trans *trans, enum btree_id id,
+ struct bkey_i *k, enum btree_update_flags flags)
{
struct btree_iter iter;
int ret;
bch2_trans_iter_init(trans, &iter, id, bkey_start_pos(&k->k),
+ BTREE_ITER_CACHED|
BTREE_ITER_INTENT);
ret = bch2_btree_iter_traverse(&iter) ?:
- bch2_trans_update(trans, &iter, k, 0);
+ bch2_trans_update(trans, &iter, k, flags);
bch2_trans_iter_exit(trans, &iter);
return ret;
}
u64 *journal_seq, int flags)
{
return bch2_trans_do(c, disk_res, journal_seq, flags,
- __bch2_btree_insert(&trans, id, k));
+ __bch2_btree_insert(&trans, id, k, 0));
}
int bch2_btree_delete_extent_at(struct btree_trans *trans, struct btree_iter *iter,
projects / bcachefs-tools-debian / blobdiff