#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"
#include "recovery.h"
#include "subvolume.h"
#include "replicas.h"
+#include "trace.h"
#include <linux/prefetch.h>
#include <linux/sort.h>
-#include <trace/events/bcachefs.h>
/*
* bch2_btree_path_peek_slot() for a cached iterator might return a key in a
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);
return 0;
}
-static int btree_node_flush0(struct journal *j, struct journal_entry_pin *pin, u64 seq)
+int bch2_btree_node_flush0(struct journal *j, struct journal_entry_pin *pin, u64 seq)
{
return __btree_node_flush(j, pin, 0, seq);
}
-static int btree_node_flush1(struct journal *j, struct journal_entry_pin *pin, u64 seq)
+int bch2_btree_node_flush1(struct journal *j, struct journal_entry_pin *pin, u64 seq)
{
return __btree_node_flush(j, pin, 1, seq);
}
bch2_journal_pin_add(&c->journal, seq, &w->journal,
btree_node_write_idx(b) == 0
- ? btree_node_flush0
- : btree_node_flush1);
+ ? bch2_btree_node_flush0
+ : bch2_btree_node_flush1);
}
/**
* 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;
- int ret;
-
- bch2_trans_unlock(trans);
-
- ret = bch2_journal_preres_get(&c->journal,
- &trans->journal_preres, u64s, 0);
- if (ret)
- return ret;
-
- ret = bch2_trans_relock(trans);
- if (ret) {
- trace_and_count(c, trans_restart_journal_preres_get, trans, trace_ip, 0);
- return ret;
- }
-
- return 0;
+ return drop_locks_do(trans,
+ bch2_journal_preres_get(&trans->c->journal,
+ &trans->journal_preres,
+ trans->journal_preres_u64s,
+ (flags & JOURNAL_WATERMARK_MASK)));
}
static __always_inline int bch2_trans_journal_res_get(struct btree_trans *trans,
if (!new_k) {
bch_err(c, "error allocating memory for key cache key, btree %s u64s %u",
bch2_btree_ids[path->btree_id], new_u64s);
- return -ENOMEM;
+ return -BCH_ERR_ENOMEM_btree_key_cache_insert;
}
trans_for_each_update(trans, i)
if (bch2_bkey_ops[old.k->type].atomic_trigger ==
bch2_bkey_ops[i->k->k.type].atomic_trigger &&
((1U << old.k->type) & BTREE_TRIGGER_WANTS_OLD_AND_NEW)) {
- ret = bch2_mark_key(trans, old, bkey_i_to_s_c(new),
+ ret = bch2_mark_key(trans, i->btree_id, i->level,
+ old, bkey_i_to_s_c(new),
BTREE_TRIGGER_INSERT|BTREE_TRIGGER_OVERWRITE|flags);
} else {
struct bkey _deleted = KEY(0, 0, 0);
_deleted.p = i->path->pos;
- ret = bch2_mark_key(trans, deleted, bkey_i_to_s_c(new),
+ ret = bch2_mark_key(trans, i->btree_id, i->level,
+ deleted, bkey_i_to_s_c(new),
BTREE_TRIGGER_INSERT|flags) ?:
- bch2_mark_key(trans, old, deleted,
+ bch2_mark_key(trans, i->btree_id, i->level,
+ old, deleted,
BTREE_TRIGGER_OVERWRITE|flags);
}
{
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;
prefetch(&trans->c->journal.flags);
- h = trans->hooks;
- while (h) {
- ret = h->fn(trans, h);
- if (ret)
- return ret;
- h = h->next;
- }
-
trans_for_each_update(trans, i) {
/* Multiple inserts might go to same leaf: */
if (!same_leaf_as_prev(trans, i))
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;
+ }
+
+ h = trans->hooks;
+ while (h) {
+ ret = h->fn(trans, h);
+ if (ret)
+ goto revert_fs_usage;
+ h = h->next;
+ }
+
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;
}
if (!i->cached)
btree_insert_key_leaf(trans, i);
else if (!i->key_cache_already_flushed)
- bch2_btree_insert_key_cached(trans, flags, i->path, i->k);
+ bch2_btree_insert_key_cached(trans, flags, i);
else {
bch2_btree_key_cache_drop(trans, i->path);
btree_path_set_dirty(i->path, BTREE_ITER_NEED_TRAVERSE);
}
}
+ 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;
trace_and_count(c, trans_restart_btree_node_split, trans, trace_ip, i->path);
break;
case -BCH_ERR_btree_insert_need_mark_replicas:
- bch2_trans_unlock(trans);
-
- ret = bch2_replicas_delta_list_mark(c, trans->fs_usage_deltas);
- if (ret)
- break;
-
- ret = bch2_trans_relock(trans);
- if (ret)
- trace_and_count(c, trans_restart_mark_replicas, trans, trace_ip);
+ ret = drop_locks_do(trans,
+ bch2_replicas_delta_list_mark(c, trans->fs_usage_deltas));
break;
case -BCH_ERR_journal_res_get_blocked:
- bch2_trans_unlock(trans);
-
if ((flags & BTREE_INSERT_JOURNAL_RECLAIM) &&
!(flags & JOURNAL_WATERMARK_reserved)) {
ret = -BCH_ERR_journal_reclaim_would_deadlock;
break;
}
- ret = bch2_trans_journal_res_get(trans, JOURNAL_RES_GET_CHECK);
- if (ret)
- break;
-
- ret = bch2_trans_relock(trans);
- if (ret)
- trace_and_count(c, trans_restart_journal_res_get, trans, trace_ip);
+ ret = drop_locks_do(trans,
+ bch2_trans_journal_res_get(trans,
+ (flags & JOURNAL_WATERMARK_MASK)|
+ JOURNAL_RES_GET_CHECK));
break;
case -BCH_ERR_btree_insert_need_journal_reclaim:
bch2_trans_unlock(trans);
break;
ret = bch2_trans_relock(trans);
- 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_unlock(trans);
+ mutex_lock(&wb->flush_lock);
+
+ if (wb->state.nr > wb->size * 3 / 4) {
+ bch2_trans_begin(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);
+ }
+ } else {
+ mutex_unlock(&wb->flush_lock);
+ ret = bch2_trans_relock(trans);
+ }
+ }
+ break;
+ }
default:
BUG_ON(ret >= 0);
break;
test_bit(BCH_FS_STARTED, &c->flags))
return -BCH_ERR_erofs_trans_commit;
- bch2_trans_unlock(trans);
-
- ret = bch2_fs_read_write_early(c) ?:
- bch2_trans_relock(trans);
+ ret = drop_locks_do(trans, bch2_fs_read_write_early(c));
if (ret)
return ret;
{
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,
struct bkey_i *update;
int ret;
- update = bch2_bkey_make_mut(trans, k);
+ update = bch2_bkey_make_mut_noupdate(trans, k);
ret = PTR_ERR_OR_ZERO(update);
if (ret)
return ret;
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_insert_snapshot_whiteouts(struct btree_trans *trans,
+ enum btree_id id,
+ struct bpos old_pos,
+ struct bpos new_pos)
+{
+ struct bch_fs *c = trans->c;
+ struct btree_iter old_iter, new_iter;
+ struct bkey_s_c old_k, new_k;
+ snapshot_id_list s;
+ struct bkey_i *update;
+ int ret;
+
+ if (!bch2_snapshot_has_children(c, old_pos.snapshot))
+ return 0;
+
+ darray_init(&s);
+
+ bch2_trans_iter_init(trans, &old_iter, id, old_pos,
+ BTREE_ITER_NOT_EXTENTS|
+ BTREE_ITER_ALL_SNAPSHOTS);
+ while ((old_k = bch2_btree_iter_prev(&old_iter)).k &&
+ !(ret = bkey_err(old_k)) &&
+ bkey_eq(old_pos, old_k.k->p)) {
+ struct bpos whiteout_pos =
+ SPOS(new_pos.inode, new_pos.offset, old_k.k->p.snapshot);;
+
+ if (!bch2_snapshot_is_ancestor(c, old_k.k->p.snapshot, old_pos.snapshot) ||
+ snapshot_list_has_ancestor(c, &s, old_k.k->p.snapshot))
+ continue;
+
+ new_k = bch2_bkey_get_iter(trans, &new_iter, id, whiteout_pos,
+ BTREE_ITER_NOT_EXTENTS|
+ BTREE_ITER_INTENT);
+ ret = bkey_err(new_k);
+ if (ret)
+ break;
+
+ if (new_k.k->type == KEY_TYPE_deleted) {
+ update = bch2_trans_kmalloc(trans, sizeof(struct bkey_i));
+ ret = PTR_ERR_OR_ZERO(update);
+ if (ret)
+ break;
+
+ bkey_init(&update->k);
+ update->k.p = whiteout_pos;
+ update->k.type = KEY_TYPE_whiteout;
+
+ ret = bch2_trans_update(trans, &new_iter, update,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE);
+ }
+ bch2_trans_iter_exit(trans, &new_iter);
+
+ ret = snapshot_list_add(c, &s, old_k.k->p.snapshot);
+ if (ret)
+ break;
+ }
+ bch2_trans_iter_exit(trans, &old_iter);
+ darray_exit(&s);
+
+ 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;
trans->extra_journal_res += compressed_sectors;
if (front_split) {
- update = bch2_bkey_make_mut(trans, k);
+ update = bch2_bkey_make_mut_noupdate(trans, k);
if ((ret = PTR_ERR_OR_ZERO(update)))
goto err;
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_insert_snapshot_whiteouts(trans, btree_id,
+ k.k->p, update->k.p) ?:
+ bch2_btree_insert_nonextent(trans, btree_id, update,
+ BTREE_UPDATE_INTERNAL_SNAPSHOT_NODE|flags);
if (ret)
goto err;
}
if (k.k->p.snapshot != insert->k.p.snapshot &&
(front_split || back_split)) {
- update = bch2_bkey_make_mut(trans, k);
+ update = bch2_bkey_make_mut_noupdate(trans, k);
if ((ret = PTR_ERR_OR_ZERO(update)))
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_insert_snapshot_whiteouts(trans, btree_id,
+ k.k->p, update->k.p) ?:
+ 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;
update->k.type = KEY_TYPE_whiteout;
+ } else if (btree_type_has_snapshots(btree_id)) {
+ ret = need_whiteout_for_snapshot(trans, btree_id, update->k.p);
+ if (ret < 0)
+ goto err;
+ if (ret)
+ 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;
}
if (back_split) {
- update = bch2_bkey_make_mut(trans, k);
+ update = bch2_bkey_make_mut_noupdate(trans, k);
if ((ret = PTR_ERR_OR_ZERO(update)))
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,
unsigned long ip)
{
struct btree_path *btree_path;
+ struct bkey k;
int ret;
- i->key_cache_already_flushed = true;
- i->flags |= BTREE_TRIGGER_NORUN;
-
btree_path = bch2_path_get(trans, path->btree_id, path->pos, 1, 0,
BTREE_ITER_INTENT, _THIS_IP_);
-
ret = bch2_btree_path_traverse(trans, btree_path, 0);
if (ret)
- goto err;
+ goto out;
+
+ /*
+ * The old key in the insert entry might actually refer to an existing
+ * key in the btree that has been deleted from cache and not yet
+ * flushed. Check for this and skip the flush so we don't run triggers
+ * against a stale key.
+ */
+ bch2_btree_path_peek_slot_exact(btree_path, &k);
+ if (!bkey_deleted(&k))
+ goto out;
+
+ i->key_cache_already_flushed = true;
+ i->flags |= BTREE_TRIGGER_NORUN;
btree_path_set_should_be_locked(btree_path);
ret = bch2_trans_update_by_path_trace(trans, btree_path, i->k, flags, ip);
-err:
+out:
bch2_path_put(trans, btree_path, true);
return ret;
}
* the key cache - but the key has to exist in the btree for that to
* work:
*/
- if (path->cached &&
- bkey_deleted(&i->old_k) &&
- !(flags & BTREE_UPDATE_NO_KEY_CACHE_COHERENCY))
+ if (path->cached && bkey_deleted(&i->old_k))
return flush_new_cached_update(trans, path, i, flags, ip);
return 0;
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;
+}
+
+int bch2_bkey_get_empty_slot(struct btree_trans *trans, struct btree_iter *iter,
+ enum btree_id btree, struct bpos end)
+{
+ struct bkey_s_c k;
+ int ret = 0;
+
+ bch2_trans_iter_init(trans, iter, btree, POS_MAX, BTREE_ITER_INTENT);
+ k = bch2_btree_iter_prev(iter);
+ ret = bkey_err(k);
+ if (ret)
+ goto err;
+
+ bch2_btree_iter_advance(iter);
+ k = bch2_btree_iter_peek_slot(iter);
+ ret = bkey_err(k);
+ if (ret)
+ goto err;
+
+ BUG_ON(k.k->type != KEY_TYPE_deleted);
+
+ if (bkey_gt(k.k->p, end)) {
+ ret = -BCH_ERR_ENOSPC_btree_slot;
+ goto err;
+ }
+
+ return 0;
+err:
+ bch2_trans_iter_exit(trans, iter);
+ return ret;
+}
+
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,
return bch2_btree_delete_extent_at(trans, iter, 0, update_flags);
}
+int bch2_btree_delete_at_buffered(struct btree_trans *trans,
+ enum btree_id btree, struct bpos pos)
+{
+ struct bkey_i *k;
+
+ k = bch2_trans_kmalloc(trans, sizeof(*k));
+ if (IS_ERR(k))
+ return PTR_ERR(k);
+
+ bkey_init(&k->k);
+ k->k.p = pos;
+ return bch2_trans_update_buffered(trans, btree, k);
+}
+
int bch2_btree_delete_range_trans(struct btree_trans *trans, enum btree_id id,
struct bpos start, struct bpos end,
unsigned update_flags,
int ret;
prt_vprintf(&buf, fmt, args);
- ret = buf.allocation_failure ? -ENOMEM : 0;
+ ret = buf.allocation_failure ? -BCH_ERR_ENOMEM_trans_log_msg : 0;
if (ret)
goto err;
return ret;
}
-int bch2_trans_log_msg(struct btree_trans *trans, const char *fmt, ...)
+static int
+__bch2_fs_log_msg(struct bch_fs *c, unsigned commit_flags, const char *fmt,
+ va_list args)
{
- va_list args;
int ret;
- va_start(args, fmt);
- ret = __bch2_trans_log_msg(&trans->extra_journal_entries, fmt, args);
- va_end(args);
+ if (!test_bit(JOURNAL_STARTED, &c->journal.flags)) {
+ ret = __bch2_trans_log_msg(&c->journal.early_journal_entries, fmt, args);
+ } else {
+ ret = bch2_trans_do(c, NULL, NULL,
+ BTREE_INSERT_LAZY_RW|commit_flags,
+ __bch2_trans_log_msg(&trans.extra_journal_entries, fmt, args));
+ }
return ret;
}
int ret;
va_start(args, fmt);
+ ret = __bch2_fs_log_msg(c, 0, fmt, args);
+ va_end(args);
+ return ret;
+}
- if (!test_bit(JOURNAL_STARTED, &c->journal.flags)) {
- ret = __bch2_trans_log_msg(&c->journal.early_journal_entries, fmt, args);
- } else {
- ret = bch2_trans_do(c, NULL, NULL, BTREE_INSERT_LAZY_RW,
- __bch2_trans_log_msg(&trans.extra_journal_entries, fmt, args));
- }
+/*
+ * Use for logging messages during recovery to enable reserved space and avoid
+ * blocking.
+ */
+int bch2_journal_log_msg(struct bch_fs *c, const char *fmt, ...)
+{
+ va_list args;
+ int ret;
+ va_start(args, fmt);
+ ret = __bch2_fs_log_msg(c, JOURNAL_WATERMARK_reserved, fmt, args);
va_end(args);
-
return ret;
-
}