struct bkey_alloc_unpacked {
u64 journal_seq;
- u64 bucket;
- u8 dev;
u8 gen;
u8 oldest_gen;
u8 data_type;
static struct bkey_alloc_unpacked bch2_alloc_unpack(struct bkey_s_c k)
{
- struct bkey_alloc_unpacked ret = {
- .dev = k.k->p.inode,
- .bucket = k.k->p.offset,
- .gen = 0,
- };
+ struct bkey_alloc_unpacked ret = { .gen = 0 };
switch (k.k->type) {
case KEY_TYPE_alloc:
return ret;
}
-void bch2_alloc_to_v4(struct bkey_s_c k, struct bch_alloc_v4 *out)
-{
- if (k.k->type == KEY_TYPE_alloc_v4) {
- *out = *bkey_s_c_to_alloc_v4(k).v;
- } else {
- struct bkey_alloc_unpacked u = bch2_alloc_unpack(k);
-
- *out = (struct bch_alloc_v4) {
- .journal_seq = u.journal_seq,
- .flags = u.need_discard,
- .gen = u.gen,
- .oldest_gen = u.oldest_gen,
- .data_type = u.data_type,
- .stripe_redundancy = u.stripe_redundancy,
- .dirty_sectors = u.dirty_sectors,
- .cached_sectors = u.cached_sectors,
- .io_time[READ] = u.read_time,
- .io_time[WRITE] = u.write_time,
- .stripe = u.stripe,
- };
- }
-}
-
-struct bkey_i_alloc_v4 *bch2_alloc_to_v4_mut(struct btree_trans *trans, struct bkey_s_c k)
-{
- struct bkey_i_alloc_v4 *ret;
-
- if (k.k->type == KEY_TYPE_alloc_v4) {
- ret = bch2_trans_kmalloc(trans, bkey_bytes(k.k));
- if (!IS_ERR(ret))
- bkey_reassemble(&ret->k_i, k);
- } else {
- ret = bch2_trans_kmalloc(trans, sizeof(*ret));
- if (!IS_ERR(ret)) {
- bkey_alloc_v4_init(&ret->k_i);
- ret->k.p = k.k->p;
- bch2_alloc_to_v4(k, &ret->v);
- }
- }
- return ret;
-}
-
-struct bkey_i_alloc_v4 *
-bch2_trans_start_alloc_update(struct btree_trans *trans, struct btree_iter *iter,
- struct bpos pos)
-{
- struct bkey_s_c k;
- struct bkey_i_alloc_v4 *a;
- int ret;
-
- bch2_trans_iter_init(trans, iter, BTREE_ID_alloc, pos,
- BTREE_ITER_WITH_UPDATES|
- BTREE_ITER_CACHED|
- BTREE_ITER_INTENT);
- k = bch2_btree_iter_peek_slot(iter);
- ret = bkey_err(k);
- if (ret) {
- bch2_trans_iter_exit(trans, iter);
- return ERR_PTR(ret);
- }
-
- a = bch2_alloc_to_v4_mut(trans, k);
- if (IS_ERR(a))
- bch2_trans_iter_exit(trans, iter);
- return a;
-}
-
static unsigned bch_alloc_v1_val_u64s(const struct bch_alloc *a)
{
unsigned i, bytes = offsetof(struct bch_alloc, data);
void bch2_alloc_to_text(struct printbuf *out, struct bch_fs *c, struct bkey_s_c k)
{
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 _a;
+ const struct bch_alloc_v4 *a = bch2_alloc_to_v4(k, &_a);
+
+ prt_newline(out);
+ printbuf_indent_add(out, 2);
+
+ prt_printf(out, "gen %u oldest_gen %u data_type %s",
+ a->gen, a->oldest_gen, bch2_data_types[a->data_type]);
+ prt_newline(out);
+ prt_printf(out, "journal_seq %llu", a->journal_seq);
+ prt_newline(out);
+ prt_printf(out, "need_discard %llu", BCH_ALLOC_V4_NEED_DISCARD(a));
+ prt_newline(out);
+ prt_printf(out, "need_inc_gen %llu", BCH_ALLOC_V4_NEED_INC_GEN(a));
+ prt_newline(out);
+ prt_printf(out, "dirty_sectors %u", a->dirty_sectors);
+ prt_newline(out);
+ prt_printf(out, "cached_sectors %u", a->cached_sectors);
+ prt_newline(out);
+ prt_printf(out, "stripe %u", a->stripe);
+ prt_newline(out);
+ prt_printf(out, "stripe_redundancy %u", a->stripe_redundancy);
+ prt_newline(out);
+ prt_printf(out, "io_time[READ] %llu", a->io_time[READ]);
+ prt_newline(out);
+ prt_printf(out, "io_time[WRITE] %llu", a->io_time[WRITE]);
+ prt_newline(out);
+ prt_printf(out, "backpointers: %llu", BCH_ALLOC_V4_NR_BACKPOINTERS(a));
+
+ printbuf_indent_sub(out, 2);
+}
+
+static inline void *alloc_v4_backpointers(struct bch_alloc_v4 *a)
+{
+ return (void *) ((u64 *) &a->v + BCH_ALLOC_V4_BACKPOINTERS_START(a));
+}
+
+void __bch2_alloc_to_v4(struct bkey_s_c k, struct bch_alloc_v4 *out)
+{
+ if (k.k->type == KEY_TYPE_alloc_v4) {
+ void *src, *dst;
+
+ *out = *bkey_s_c_to_alloc_v4(k).v;
+
+ src = alloc_v4_backpointers(out);
+ SET_BCH_ALLOC_V4_BACKPOINTERS_START(out, BCH_ALLOC_V4_U64s);
+ dst = alloc_v4_backpointers(out);
+
+ if (src < dst)
+ memset(src, 0, dst - src);
+ } else {
+ struct bkey_alloc_unpacked u = bch2_alloc_unpack(k);
- bch2_alloc_to_v4(k, &a);
-
- prt_printf(out, "gen %u oldest_gen %u data_type %s journal_seq %llu need_discard %llu need_inc_gen %llu",
- a.gen, a.oldest_gen, bch2_data_types[a.data_type],
- a.journal_seq,
- BCH_ALLOC_V4_NEED_DISCARD(&a),
- BCH_ALLOC_V4_NEED_INC_GEN(&a));
- prt_printf(out, " dirty_sectors %u", a.dirty_sectors);
- prt_printf(out, " cached_sectors %u", a.cached_sectors);
- prt_printf(out, " stripe %u", a.stripe);
- prt_printf(out, " stripe_redundancy %u", a.stripe_redundancy);
- prt_printf(out, " read_time %llu", a.io_time[READ]);
- prt_printf(out, " write_time %llu", a.io_time[WRITE]);
+ *out = (struct bch_alloc_v4) {
+ .journal_seq = u.journal_seq,
+ .flags = u.need_discard,
+ .gen = u.gen,
+ .oldest_gen = u.oldest_gen,
+ .data_type = u.data_type,
+ .stripe_redundancy = u.stripe_redundancy,
+ .dirty_sectors = u.dirty_sectors,
+ .cached_sectors = u.cached_sectors,
+ .io_time[READ] = u.read_time,
+ .io_time[WRITE] = u.write_time,
+ .stripe = u.stripe,
+ };
+
+ SET_BCH_ALLOC_V4_BACKPOINTERS_START(out, BCH_ALLOC_V4_U64s);
+ }
+}
+
+static noinline struct bkey_i_alloc_v4 *
+__bch2_alloc_to_v4_mut(struct btree_trans *trans, struct bkey_s_c k)
+{
+ struct bkey_i_alloc_v4 *ret;
+
+ if (k.k->type == KEY_TYPE_alloc_v4) {
+ unsigned bytes = min(sizeof(struct bkey_i_alloc_v4), bkey_bytes(k.k));
+ void *src, *dst;
+
+ ret = bch2_trans_kmalloc(trans, bytes);
+ if (IS_ERR(ret))
+ return ret;
+
+ bkey_reassemble(&ret->k_i, k);
+
+ src = alloc_v4_backpointers(&ret->v);
+ SET_BCH_ALLOC_V4_BACKPOINTERS_START(&ret->v, BCH_ALLOC_V4_U64s);
+ dst = alloc_v4_backpointers(&ret->v);
+
+ if (src < dst)
+ memset(src, 0, dst - src);
+ set_alloc_v4_u64s(ret);
+ } else {
+ ret = bch2_trans_kmalloc(trans, sizeof(*ret));
+ if (!IS_ERR(ret)) {
+ bkey_alloc_v4_init(&ret->k_i);
+ ret->k.p = k.k->p;
+ bch2_alloc_to_v4(k, &ret->v);
+ }
+ }
+ return ret;
+}
+
+static inline struct bkey_i_alloc_v4 *bch2_alloc_to_v4_mut_inlined(struct btree_trans *trans, struct bkey_s_c k)
+{
+ if (likely(k.k->type == KEY_TYPE_alloc_v4) &&
+ BCH_ALLOC_V4_BACKPOINTERS_START(bkey_s_c_to_alloc_v4(k).v) == BCH_ALLOC_V4_U64s) {
+ struct bkey_i_alloc_v4 *ret =
+ bch2_trans_kmalloc_nomemzero(trans, bkey_bytes(k.k));
+ if (!IS_ERR(ret))
+ bkey_reassemble(&ret->k_i, k);
+ return ret;
+ }
+
+ return __bch2_alloc_to_v4_mut(trans, k);
+}
+
+struct bkey_i_alloc_v4 *bch2_alloc_to_v4_mut(struct btree_trans *trans, struct bkey_s_c k)
+{
+ return bch2_alloc_to_v4_mut_inlined(trans, k);
+}
+
+struct bkey_i_alloc_v4 *
+bch2_trans_start_alloc_update(struct btree_trans *trans, struct btree_iter *iter,
+ struct bpos pos)
+{
+ struct bkey_s_c k;
+ struct bkey_i_alloc_v4 *a;
+ int ret;
+
+ bch2_trans_iter_init(trans, iter, BTREE_ID_alloc, pos,
+ BTREE_ITER_WITH_UPDATES|
+ BTREE_ITER_CACHED|
+ BTREE_ITER_INTENT);
+ k = bch2_btree_iter_peek_slot(iter);
+ ret = bkey_err(k);
+ if (unlikely(ret))
+ goto err;
+
+ a = bch2_alloc_to_v4_mut_inlined(trans, k);
+ ret = PTR_ERR_OR_ZERO(a);
+ if (unlikely(ret))
+ goto err;
+ return a;
+err:
+ bch2_trans_iter_exit(trans, iter);
+ return ERR_PTR(ret);
}
int bch2_alloc_read(struct bch_fs *c)
continue;
ca = bch_dev_bkey_exists(c, k.k->p.inode);
- bch2_alloc_to_v4(k, &a);
- *bucket_gen(ca, k.k->p.offset) = a.gen;
+ *bucket_gen(ca, k.k->p.offset) = bch2_alloc_to_v4(k, &a)->gen;
}
bch2_trans_iter_exit(&trans, &iter);
unsigned flags)
{
struct bch_fs *c = trans->c;
- struct bch_alloc_v4 old_a, *new_a;
+ struct bch_alloc_v4 old_a_convert, *new_a;
+ const struct bch_alloc_v4 *old_a;
u64 old_lru, new_lru;
int ret = 0;
*/
BUG_ON(new->k.type != KEY_TYPE_alloc_v4);
- bch2_alloc_to_v4(old, &old_a);
+ old_a = bch2_alloc_to_v4(old, &old_a_convert);
new_a = &bkey_i_to_alloc_v4(new)->v;
new_a->data_type = alloc_data_type(*new_a, new_a->data_type);
- if (new_a->dirty_sectors > old_a.dirty_sectors ||
- new_a->cached_sectors > old_a.cached_sectors) {
+ if (new_a->dirty_sectors > old_a->dirty_sectors ||
+ new_a->cached_sectors > old_a->cached_sectors) {
new_a->io_time[READ] = max_t(u64, 1, atomic64_read(&c->io_clock[READ].now));
new_a->io_time[WRITE]= max_t(u64, 1, atomic64_read(&c->io_clock[WRITE].now));
SET_BCH_ALLOC_V4_NEED_INC_GEN(new_a, true);
SET_BCH_ALLOC_V4_NEED_INC_GEN(new_a, false);
}
- if (old_a.data_type != new_a->data_type ||
+ if (old_a->data_type != new_a->data_type ||
(new_a->data_type == BCH_DATA_free &&
- alloc_freespace_genbits(old_a) != alloc_freespace_genbits(*new_a))) {
- ret = bch2_bucket_do_index(trans, old, &old_a, false) ?:
+ alloc_freespace_genbits(*old_a) != alloc_freespace_genbits(*new_a))) {
+ ret = bch2_bucket_do_index(trans, old, old_a, false) ?:
bch2_bucket_do_index(trans, bkey_i_to_s_c(new), new_a, true);
if (ret)
return ret;
!new_a->io_time[READ])
new_a->io_time[READ] = max_t(u64, 1, atomic64_read(&c->io_clock[READ].now));
- old_lru = alloc_lru_idx(old_a);
+ old_lru = alloc_lru_idx(*old_a);
new_lru = alloc_lru_idx(*new_a);
if (old_lru != new_lru) {
{
struct bch_fs *c = trans->c;
struct bch_dev *ca;
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 a_convert;
+ const struct bch_alloc_v4 *a;
unsigned discard_key_type, freespace_key_type;
struct bkey_s_c alloc_k, k;
struct printbuf buf = PRINTBUF;
if (!ca->mi.freespace_initialized)
return 0;
- bch2_alloc_to_v4(alloc_k, &a);
+ a = bch2_alloc_to_v4(alloc_k, &a_convert);
- discard_key_type = a.data_type == BCH_DATA_need_discard
+ discard_key_type = a->data_type == BCH_DATA_need_discard
? KEY_TYPE_set : 0;
- freespace_key_type = a.data_type == BCH_DATA_free
+ freespace_key_type = a->data_type == BCH_DATA_free
? KEY_TYPE_set : 0;
bch2_btree_iter_set_pos(discard_iter, alloc_k.k->p);
- bch2_btree_iter_set_pos(freespace_iter, alloc_freespace_pos(alloc_k.k->p, a));
+ bch2_btree_iter_set_pos(freespace_iter, alloc_freespace_pos(alloc_k.k->p, *a));
k = bch2_btree_iter_peek_slot(discard_iter);
ret = bkey_err(k);
struct bch_fs *c = trans->c;
struct btree_iter alloc_iter;
struct bkey_s_c alloc_k;
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 a_convert;
+ const struct bch_alloc_v4 *a;
u64 genbits;
struct bpos pos;
enum bch_data_type state = iter->btree_id == BTREE_ID_need_discard
if (ret)
goto err;
- bch2_alloc_to_v4(alloc_k, &a);
+ a = bch2_alloc_to_v4(alloc_k, &a_convert);
- if (fsck_err_on(a.data_type != state ||
+ if (fsck_err_on(a->data_type != state ||
(state == BCH_DATA_free &&
- genbits != alloc_freespace_genbits(a)), c,
+ genbits != alloc_freespace_genbits(*a)), c,
"%s\n incorrectly set in %s index (free %u, genbits %llu should be %llu)",
(bch2_bkey_val_to_text(&buf, c, alloc_k), buf.buf),
bch2_btree_ids[iter->btree_id],
- a.data_type == state,
- genbits >> 56, alloc_freespace_genbits(a) >> 56))
+ a->data_type == state,
+ genbits >> 56, alloc_freespace_genbits(*a) >> 56))
goto delete;
out:
err:
{
struct bch_fs *c = trans->c;
struct btree_iter lru_iter;
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 a_convert;
+ const struct bch_alloc_v4 *a;
struct bkey_s_c alloc_k, k;
struct printbuf buf = PRINTBUF;
struct printbuf buf2 = PRINTBUF;
if (ret)
return ret;
- bch2_alloc_to_v4(alloc_k, &a);
+ a = bch2_alloc_to_v4(alloc_k, &a_convert);
- if (a.data_type != BCH_DATA_cached)
+ if (a->data_type != BCH_DATA_cached)
return 0;
bch2_trans_iter_init(trans, &lru_iter, BTREE_ID_lru,
- POS(alloc_k.k->p.inode, a.io_time[READ]), 0);
+ POS(alloc_k.k->p.inode, a->io_time[READ]), 0);
k = bch2_btree_iter_peek_slot(&lru_iter);
ret = bkey_err(k);
if (ret)
goto err;
- if (fsck_err_on(!a.io_time[READ], c,
+ if (fsck_err_on(!a->io_time[READ], c,
"cached bucket with read_time 0\n"
" %s",
(printbuf_reset(&buf),
(printbuf_reset(&buf),
bch2_bkey_val_to_text(&buf, c, alloc_k), buf.buf),
(bch2_bkey_val_to_text(&buf2, c, k), buf2.buf))) {
- u64 read_time = a.io_time[READ];
-
- if (!a.io_time[READ])
- a.io_time[READ] = atomic64_read(&c->io_clock[READ].now);
+ u64 read_time = a->io_time[READ] ?:
+ atomic64_read(&c->io_clock[READ].now);
ret = bch2_lru_set(trans,
alloc_k.k->p.inode,
alloc_k.k->p.offset,
- &a.io_time[READ]);
+ &read_time);
if (ret)
goto err;
- if (a.io_time[READ] != read_time) {
+ if (a->io_time[READ] != read_time) {
struct bkey_i_alloc_v4 *a_mut =
bch2_alloc_to_v4_mut(trans, alloc_k);
ret = PTR_ERR_OR_ZERO(a_mut);
if (ret)
goto err;
- a_mut->v.io_time[READ] = a.io_time[READ];
+ a_mut->v.io_time[READ] = read_time;
ret = bch2_trans_update(trans, alloc_iter,
&a_mut->k_i, BTREE_TRIGGER_NORUN);
if (ret)
static int bucket_freespace_init(struct btree_trans *trans, struct btree_iter *iter,
struct bkey_s_c k, struct bch_dev *ca)
{
- struct bch_alloc_v4 a;
+ struct bch_alloc_v4 a_convert;
+ const struct bch_alloc_v4 *a;
if (iter->pos.offset >= ca->mi.nbuckets)
return 1;
- bch2_alloc_to_v4(k, &a);
- return bch2_bucket_do_index(trans, k, &a, true);
+ a = bch2_alloc_to_v4(k, &a_convert);
+ return bch2_bucket_do_index(trans, k, a, true);
}
static int bch2_dev_freespace_init(struct bch_fs *c, struct bch_dev *ca)
{
bool gc = flags & BTREE_TRIGGER_GC;
u64 journal_seq = trans->journal_res.seq;
+ u64 bucket_journal_seq;
struct bch_fs *c = trans->c;
- struct bch_alloc_v4 old_a, new_a;
+ struct bch_alloc_v4 old_a_convert, new_a_convert;
+ const struct bch_alloc_v4 *old_a, *new_a;
struct bch_dev *ca;
int ret = 0;
ca = bch_dev_bkey_exists(c, new.k->p.inode);
- bch2_alloc_to_v4(old, &old_a);
- bch2_alloc_to_v4(new, &new_a);
+ old_a = bch2_alloc_to_v4(old, &old_a_convert);
+ new_a = bch2_alloc_to_v4(new, &new_a_convert);
+
+ bucket_journal_seq = new_a->journal_seq;
if ((flags & BTREE_TRIGGER_INSERT) &&
- data_type_is_empty(old_a.data_type) !=
- data_type_is_empty(new_a.data_type) &&
+ data_type_is_empty(old_a->data_type) !=
+ data_type_is_empty(new_a->data_type) &&
new.k->type == KEY_TYPE_alloc_v4) {
struct bch_alloc_v4 *v = (struct bch_alloc_v4 *) new.v;
- BUG_ON(!journal_seq);
+ EBUG_ON(!journal_seq);
/*
* If the btree updates referring to a bucket weren't flushed
* before the bucket became empty again, then the we don't have
* to wait on a journal flush before we can reuse the bucket:
*/
- new_a.journal_seq = data_type_is_empty(new_a.data_type) &&
+ v->journal_seq = bucket_journal_seq =
+ data_type_is_empty(new_a->data_type) &&
(journal_seq == v->journal_seq ||
bch2_journal_noflush_seq(&c->journal, v->journal_seq))
? 0 : journal_seq;
- v->journal_seq = new_a.journal_seq;
}
- if (!data_type_is_empty(old_a.data_type) &&
- data_type_is_empty(new_a.data_type) &&
- new_a.journal_seq) {
+ if (!data_type_is_empty(old_a->data_type) &&
+ data_type_is_empty(new_a->data_type) &&
+ bucket_journal_seq) {
ret = bch2_set_bucket_needs_journal_commit(&c->buckets_waiting_for_journal,
c->journal.flushed_seq_ondisk,
new.k->p.inode, new.k->p.offset,
- new_a.journal_seq);
+ bucket_journal_seq);
if (ret) {
bch2_fs_fatal_error(c,
"error setting bucket_needs_journal_commit: %i", ret);
}
percpu_down_read(&c->mark_lock);
- if (!gc && new_a.gen != old_a.gen)
- *bucket_gen(ca, new.k->p.offset) = new_a.gen;
+ if (!gc && new_a->gen != old_a->gen)
+ *bucket_gen(ca, new.k->p.offset) = new_a->gen;
- bch2_dev_usage_update(c, ca, old_a, new_a, journal_seq, gc);
+ bch2_dev_usage_update(c, ca, *old_a, *new_a, journal_seq, gc);
if (gc) {
struct bucket *g = gc_bucket(ca, new.k->p.offset);
bucket_lock(g);
g->gen_valid = 1;
- g->gen = new_a.gen;
- g->data_type = new_a.data_type;
- g->stripe = new_a.stripe;
- g->stripe_redundancy = new_a.stripe_redundancy;
- g->dirty_sectors = new_a.dirty_sectors;
- g->cached_sectors = new_a.cached_sectors;
+ g->gen = new_a->gen;
+ g->data_type = new_a->data_type;
+ g->stripe = new_a->stripe;
+ g->stripe_redundancy = new_a->stripe_redundancy;
+ g->dirty_sectors = new_a->dirty_sectors;
+ g->cached_sectors = new_a->cached_sectors;
bucket_unlock(g);
}
*/
if ((flags & BTREE_TRIGGER_BUCKET_INVALIDATE) &&
- old_a.cached_sectors) {
+ old_a->cached_sectors) {
ret = update_cached_sectors(c, new, ca->dev_idx,
- -((s64) old_a.cached_sectors),
+ -((s64) old_a->cached_sectors),
journal_seq, gc);
if (ret) {
bch2_fs_fatal_error(c, "%s(): no replicas entry while updating cached sectors",
}
}
- if (new_a.data_type == BCH_DATA_free &&
- (!new_a.journal_seq || new_a.journal_seq < c->journal.flushed_seq_ondisk))
+ if (new_a->data_type == BCH_DATA_free &&
+ (!new_a->journal_seq || new_a->journal_seq < c->journal.flushed_seq_ondisk))
closure_wake_up(&c->freelist_wait);
- if (new_a.data_type == BCH_DATA_need_discard &&
- (!new_a.journal_seq || new_a.journal_seq < c->journal.flushed_seq_ondisk))
+ if (new_a->data_type == BCH_DATA_need_discard &&
+ (!bucket_journal_seq || bucket_journal_seq < c->journal.flushed_seq_ondisk))
bch2_do_discards(c);
- if (old_a.data_type != BCH_DATA_cached &&
- new_a.data_type == BCH_DATA_cached &&
+ if (old_a->data_type != BCH_DATA_cached &&
+ new_a->data_type == BCH_DATA_cached &&
should_invalidate_buckets(ca, bch2_dev_usage_read(ca)))
bch2_do_invalidates(c);
- if (new_a.data_type == BCH_DATA_need_gc_gens)
+ if (new_a->data_type == BCH_DATA_need_gc_gens)
bch2_do_gc_gens(c);
return 0;
projects / linux-block.git / commitdiff