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bcachefs: Convert gc to new accounting

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Rewrite fsck/gc for the new accounting scheme.

This adds a second set of in-memory accounting counters for gc to use;
like with other parts of gc we run all trigger in TRIGGER_GC mode, then
compare what we calculated to existing in-memory accounting at the end.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-02-11 22:48:05 -05:00
parent 4c4a7d48bd
commit fb23d57a6d
17 changed files with 344 additions and 577 deletions
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34
fs/bcachefs/alloc_background.c
View File

@ -774,7 +774,7 @@ static inline int bch2_dev_data_type_accounting_mod(struct btree_trans *trans, s
};
s64 d[3] = { delta_buckets, delta_sectors, delta_fragmented };
return bch2_disk_accounting_mod(trans, &acc, d, 3);
return bch2_disk_accounting_mod(trans, &acc, d, 3, flags & BTREE_TRIGGER_gc);
}
int bch2_alloc_key_to_dev_counters(struct btree_trans *trans, struct bch_dev *ca,
@ -894,7 +894,8 @@ int bch2_trigger_alloc(struct btree_trans *trans,
if ((flags & BTREE_TRIGGER_bucket_invalidate) &&
old_a->cached_sectors) {
ret = bch2_mod_dev_cached_sectors(trans, ca->dev_idx,
-((s64) old_a->cached_sectors));
-((s64) old_a->cached_sectors),
flags & BTREE_TRIGGER_gc);
if (ret)
goto err;
}
@ -973,35 +974,6 @@ int bch2_trigger_alloc(struct btree_trans *trans,
if (statechange(a->data_type == BCH_DATA_need_gc_gens))
bch2_gc_gens_async(c);
}
if ((flags & BTREE_TRIGGER_gc) &&
(flags & BTREE_TRIGGER_bucket_invalidate)) {
struct bch_alloc_v4 new_a_convert;
const struct bch_alloc_v4 *new_a = bch2_alloc_to_v4(new.s_c, &new_a_convert);
percpu_down_read(&c->mark_lock);
struct bucket *g = gc_bucket(ca, new.k->p.offset);
if (unlikely(!g)) {
percpu_up_read(&c->mark_lock);
goto invalid_bucket;
}
g->gen_valid = 1;
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;
bucket_unlock(g);
percpu_up_read(&c->mark_lock);
bch2_dev_usage_update(c, ca, old_a, new_a);
}
err:
printbuf_exit(&buf);
bch2_dev_put(ca);

16
fs/bcachefs/alloc_foreground.c
View File

@ -1708,15 +1708,13 @@ void bch2_fs_alloc_debug_to_text(struct printbuf *out, struct bch_fs *c)
prt_printf(out, "capacity\t%llu\n", c->capacity);
prt_printf(out, "reserved\t%llu\n", c->reserved);
percpu_down_read(&c->mark_lock);
prt_printf(out, "hidden\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.hidden));
prt_printf(out, "btree\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.btree));
prt_printf(out, "data\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.data));
prt_printf(out, "cached\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.cached));
prt_printf(out, "reserved\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.reserved));
prt_printf(out, "online_reserved\t%llu\n", percpu_u64_get(c->online_reserved));
prt_printf(out, "nr_inodes\t%llu\n", bch2_fs_usage_read_one(c, &c->usage_base->b.nr_inodes));
percpu_up_read(&c->mark_lock);
prt_printf(out, "hidden\t%llu\n", percpu_u64_get(&c->usage->hidden));
prt_printf(out, "btree\t%llu\n", percpu_u64_get(&c->usage->btree));
prt_printf(out, "data\t%llu\n", percpu_u64_get(&c->usage->data));
prt_printf(out, "cached\t%llu\n", percpu_u64_get(&c->usage->cached));
prt_printf(out, "reserved\t%llu\n", percpu_u64_get(&c->usage->reserved));
prt_printf(out, "online_reserved\t%llu\n", percpu_u64_get(c->online_reserved));
prt_printf(out, "nr_inodes\t%llu\n", percpu_u64_get(&c->usage->nr_inodes));
prt_newline(out);
prt_printf(out, "freelist_wait\t%s\n", c->freelist_wait.list.first ? "waiting" : "empty");

4
fs/bcachefs/bcachefs.h
View File

@ -546,7 +546,6 @@ struct bch_dev {
struct rw_semaphore bucket_lock;
struct bch_dev_usage __percpu *usage;
struct bch_dev_usage __percpu *usage_gc;
/* Allocator: */
u64 new_fs_bucket_idx;
@ -741,7 +740,7 @@ struct bch_fs {
struct bch_dev __rcu *devs[BCH_SB_MEMBERS_MAX];
struct bch_accounting_mem accounting;
struct bch_accounting_mem accounting[2];
struct bch_replicas_cpu replicas;
struct bch_replicas_cpu replicas_gc;
@ -890,7 +889,6 @@ struct bch_fs {
seqcount_t usage_lock;
struct bch_fs_usage_base __percpu *usage;
struct bch_fs_usage __percpu *usage_gc;
u64 __percpu *online_reserved;
struct io_clock io_clock[2];

133
fs/bcachefs/btree_gc.c
View File

@ -20,6 +20,7 @@
#include "buckets.h"
#include "clock.h"
#include "debug.h"
#include "disk_accounting.h"
#include "ec.h"
#include "error.h"
#include "extents.h"
@ -735,132 +736,25 @@ static int bch2_mark_superblocks(struct bch_fs *c)
static void bch2_gc_free(struct bch_fs *c)
{
bch2_accounting_free(&c->accounting[1]);
genradix_free(&c->reflink_gc_table);
genradix_free(&c->gc_stripes);
for_each_member_device(c, ca) {
kvfree(rcu_dereference_protected(ca->buckets_gc, 1));
ca->buckets_gc = NULL;
free_percpu(ca->usage_gc);
ca->usage_gc = NULL;
}
free_percpu(c->usage_gc);
c->usage_gc = NULL;
}
static int bch2_gc_done(struct bch_fs *c)
{
struct bch_dev *ca = NULL;
struct printbuf buf = PRINTBUF;
unsigned i;
int ret = 0;
percpu_down_write(&c->mark_lock);
#define copy_field(_err, _f, _msg, ...) \
if (fsck_err_on(dst->_f != src->_f, c, _err, \
_msg ": got %llu, should be %llu" , ##__VA_ARGS__, \
dst->_f, src->_f)) \
dst->_f = src->_f
#define copy_dev_field(_err, _f, _msg, ...) \
copy_field(_err, _f, "dev %u has wrong " _msg, ca->dev_idx, ##__VA_ARGS__)
#define copy_fs_field(_err, _f, _msg, ...) \
copy_field(_err, _f, "fs has wrong " _msg, ##__VA_ARGS__)
__for_each_member_device(c, ca) {
/* XXX */
struct bch_dev_usage *dst = this_cpu_ptr(ca->usage);
struct bch_dev_usage *src = (void *)
bch2_acc_percpu_u64s((u64 __percpu *) ca->usage_gc,
dev_usage_u64s());
for (i = 0; i < BCH_DATA_NR; i++) {
copy_dev_field(dev_usage_buckets_wrong,
d[i].buckets, "%s buckets", bch2_data_type_str(i));
copy_dev_field(dev_usage_sectors_wrong,
d[i].sectors, "%s sectors", bch2_data_type_str(i));
copy_dev_field(dev_usage_fragmented_wrong,
d[i].fragmented, "%s fragmented", bch2_data_type_str(i));
}
}
{
#if 0
unsigned nr = fs_usage_u64s(c);
/* XX: */
struct bch_fs_usage *dst = this_cpu_ptr(c->usage);
struct bch_fs_usage *src = (void *)
bch2_acc_percpu_u64s((u64 __percpu *) c->usage_gc, nr);
copy_fs_field(fs_usage_hidden_wrong,
b.hidden, "hidden");
copy_fs_field(fs_usage_btree_wrong,
b.btree, "btree");
copy_fs_field(fs_usage_data_wrong,
b.data, "data");
copy_fs_field(fs_usage_cached_wrong,
b.cached, "cached");
copy_fs_field(fs_usage_reserved_wrong,
b.reserved, "reserved");
copy_fs_field(fs_usage_nr_inodes_wrong,
b.nr_inodes,"nr_inodes");
for (i = 0; i < BCH_REPLICAS_MAX; i++)
copy_fs_field(fs_usage_persistent_reserved_wrong,
persistent_reserved[i],
"persistent_reserved[%i]", i);
for (i = 0; i < c->replicas.nr; i++) {
struct bch_replicas_entry_v1 *e =
cpu_replicas_entry(&c->replicas, i);
printbuf_reset(&buf);
bch2_replicas_entry_to_text(&buf, e);
copy_fs_field(fs_usage_replicas_wrong,
replicas[i], "%s", buf.buf);
}
#endif
}
#undef copy_fs_field
#undef copy_dev_field
#undef copy_stripe_field
#undef copy_field
fsck_err:
bch2_dev_put(ca);
bch_err_fn(c, ret);
percpu_up_write(&c->mark_lock);
printbuf_exit(&buf);
return ret;
}
static int bch2_gc_start(struct bch_fs *c)
{
BUG_ON(c->usage_gc);
c->usage_gc = __alloc_percpu_gfp(fs_usage_u64s(c) * sizeof(u64),
sizeof(u64), GFP_KERNEL);
if (!c->usage_gc) {
bch_err(c, "error allocating c->usage_gc");
return -BCH_ERR_ENOMEM_gc_start;
}
for_each_member_device(c, ca) {
BUG_ON(ca->usage_gc);
ca->usage_gc = alloc_percpu(struct bch_dev_usage);
if (!ca->usage_gc) {
bch_err(c, "error allocating ca->usage_gc");
int ret = bch2_dev_usage_init(ca, true);
if (ret) {
bch2_dev_put(ca);
return -BCH_ERR_ENOMEM_gc_start;
return ret;
}
this_cpu_write(ca->usage_gc->d[BCH_DATA_free].buckets,
ca->mi.nbuckets - ca->mi.first_bucket);
}
return 0;
@ -908,6 +802,7 @@ static int bch2_alloc_write_key(struct btree_trans *trans,
gc.data_type = old->data_type;
gc.dirty_sectors = old->dirty_sectors;
}
percpu_up_read(&c->mark_lock);
/*
* gc.data_type doesn't yet include need_discard & need_gc_gen states -
@ -916,9 +811,11 @@ static int bch2_alloc_write_key(struct btree_trans *trans,
alloc_data_type_set(&gc, gc.data_type);
if (gc.data_type != old_gc.data_type ||
gc.dirty_sectors != old_gc.dirty_sectors)
bch2_dev_usage_update(c, ca, &old_gc, &gc);
percpu_up_read(&c->mark_lock);
gc.dirty_sectors != old_gc.dirty_sectors) {
ret = bch2_alloc_key_to_dev_counters(trans, ca, &old_gc, &gc, BTREE_TRIGGER_gc);
if (ret)
return ret;
}
gc.fragmentation_lru = alloc_lru_idx_fragmentation(gc, ca);
@ -1235,7 +1132,9 @@ int bch2_check_allocations(struct bch_fs *c)
gc_pos_set(c, gc_phase(GC_PHASE_start));
ret = bch2_mark_superblocks(c);
BUG_ON(ret);
bch_err_msg(c, ret, "marking superblocks");
if (ret)
goto out;
ret = bch2_gc_btrees(c);
if (ret)
@ -1246,7 +1145,7 @@ int bch2_check_allocations(struct bch_fs *c)
bch2_journal_block(&c->journal);
out:
ret = bch2_gc_alloc_done(c) ?:
bch2_gc_done(c) ?:
bch2_accounting_gc_done(c) ?:
bch2_gc_stripes_done(c) ?:
bch2_gc_reflink_done(c);

4
fs/bcachefs/btree_trans_commit.c
View File

@ -724,7 +724,7 @@ bch2_trans_commit_write_locked(struct btree_trans *trans, unsigned flags,
a->k.version = journal_pos_to_bversion(&trans->journal_res,
(u64 *) entry - (u64 *) trans->journal_entries);
BUG_ON(bversion_zero(a->k.version));
ret = bch2_accounting_mem_mod(trans, accounting_i_to_s_c(a));
ret = bch2_accounting_mem_mod_locked(trans, accounting_i_to_s_c(a), false);
if (ret)
goto revert_fs_usage;
}
@ -812,7 +812,7 @@ revert_fs_usage:
struct bkey_s_accounting a = bkey_i_to_s_accounting(entry2->start);
bch2_accounting_neg(a);
bch2_accounting_mem_mod(trans, a.c);
bch2_accounting_mem_mod_locked(trans, a.c, false);
bch2_accounting_neg(a);
}
percpu_up_read(&c->mark_lock);

185
fs/bcachefs/buckets.c
View File

@ -84,96 +84,6 @@ void bch2_dev_usage_to_text(struct printbuf *out, struct bch_dev_usage *usage)
}
}
void bch2_dev_usage_update(struct bch_fs *c, struct bch_dev *ca,
const struct bch_alloc_v4 *old,
const struct bch_alloc_v4 *new)
{
struct bch_fs_usage *fs_usage;
struct bch_dev_usage *u;
preempt_disable();
fs_usage = this_cpu_ptr(c->usage_gc);
if (data_type_is_hidden(old->data_type))
fs_usage->b.hidden -= ca->mi.bucket_size;
if (data_type_is_hidden(new->data_type))
fs_usage->b.hidden += ca->mi.bucket_size;
u = this_cpu_ptr(ca->usage_gc);
u->d[old->data_type].buckets--;
u->d[new->data_type].buckets++;
u->d[old->data_type].sectors -= bch2_bucket_sectors_dirty(*old);
u->d[new->data_type].sectors += bch2_bucket_sectors_dirty(*new);
u->d[old->data_type].fragmented -= bch2_bucket_sectors_fragmented(ca, *old);
u->d[new->data_type].fragmented += bch2_bucket_sectors_fragmented(ca, *new);
u->d[BCH_DATA_cached].sectors -= old->cached_sectors;
u->d[BCH_DATA_cached].sectors += new->cached_sectors;
unsigned old_unstriped = bch2_bucket_sectors_unstriped(*old);
u->d[BCH_DATA_unstriped].buckets -= old_unstriped != 0;
u->d[BCH_DATA_unstriped].sectors -= old_unstriped;
unsigned new_unstriped = bch2_bucket_sectors_unstriped(*new);
u->d[BCH_DATA_unstriped].buckets += new_unstriped != 0;
u->d[BCH_DATA_unstriped].sectors += new_unstriped;
preempt_enable();
}
int bch2_update_replicas(struct bch_fs *c, struct bkey_s_c k,
struct bch_replicas_entry_v1 *r, s64 sectors)
{
struct bch_fs_usage *fs_usage;
int idx, ret = 0;
struct printbuf buf = PRINTBUF;
percpu_down_read(&c->mark_lock);
idx = bch2_replicas_entry_idx(c, r);
if (idx < 0 &&
fsck_err(c, ptr_to_missing_replicas_entry,
"no replicas entry\n while marking %s",
(bch2_bkey_val_to_text(&buf, c, k), buf.buf))) {
percpu_up_read(&c->mark_lock);
ret = bch2_mark_replicas(c, r);
percpu_down_read(&c->mark_lock);
if (ret)
goto err;
idx = bch2_replicas_entry_idx(c, r);
}
if (idx < 0) {
ret = -1;
goto err;
}
preempt_disable();
fs_usage = this_cpu_ptr(c->usage_gc);
fs_usage_data_type_to_base(&fs_usage->b, r->data_type, sectors);
fs_usage->replicas[idx] += sectors;
preempt_enable();
err:
fsck_err:
percpu_up_read(&c->mark_lock);
printbuf_exit(&buf);
return ret;
}
static inline int update_cached_sectors(struct bch_fs *c,
struct bkey_s_c k,
unsigned dev, s64 sectors)
{
struct bch_replicas_padded r;
bch2_replicas_entry_cached(&r.e, dev);
return bch2_update_replicas(c, k, &r.e, sectors);
}
static int bch2_check_fix_ptr(struct btree_trans *trans,
struct bkey_s_c k,
struct extent_ptr_decoded p,
@ -574,8 +484,6 @@ void bch2_trans_account_disk_usage_change(struct btree_trans *trans)
bool warn = false;
percpu_down_read(&c->mark_lock);
preempt_disable();
struct bch_fs_usage_base *dst = this_cpu_ptr(c->usage);
struct bch_fs_usage_base *src = &trans->fs_usage_delta;
s64 added = src->btree + src->data + src->reserved;
@ -603,13 +511,9 @@ void bch2_trans_account_disk_usage_change(struct btree_trans *trans)
this_cpu_sub(*c->online_reserved, added);
}
dst->hidden += src->hidden;
dst->btree += src->btree;
dst->data += src->data;
dst->cached += src->cached;
dst->reserved += src->reserved;
dst->nr_inodes += src->nr_inodes;
preempt_disable();
struct bch_fs_usage_base *dst = this_cpu_ptr(c->usage);
acc_u64s((u64 *) dst, (u64 *) src, sizeof(*src) / sizeof(u64));
preempt_enable();
percpu_up_read(&c->mark_lock);
@ -691,13 +595,13 @@ static int bch2_trigger_pointer(struct btree_trans *trans,
bucket_lock(g);
struct bch_alloc_v4 old = bucket_m_to_alloc(*g), new = old;
ret = __mark_pointer(trans, ca, k, &p, *sectors, bp.data_type, &new);
if (!ret) {
alloc_to_bucket(g, new);
bch2_dev_usage_update(c, ca, &old, &new);
}
alloc_to_bucket(g, new);
bucket_unlock(g);
err_unlock:
percpu_up_read(&c->mark_lock);
if (!ret)
ret = bch2_alloc_key_to_dev_counters(trans, ca, &old, &new, flags);
}
err:
bch2_dev_put(ca);
@ -742,7 +646,7 @@ static int bch2_trigger_stripe_ptr(struct btree_trans *trans,
};
bch2_bkey_to_replicas(&acc.replicas, bkey_i_to_s_c(&s->k_i));
acc.replicas.data_type = data_type;
ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1);
ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1, false);
err:
bch2_trans_iter_exit(trans, &iter);
return ret;
@ -751,8 +655,6 @@ err:
if (flags & BTREE_TRIGGER_gc) {
struct bch_fs *c = trans->c;
BUG_ON(!(flags & BTREE_TRIGGER_gc));
struct gc_stripe *m = genradix_ptr_alloc(&c->gc_stripes, p.ec.idx, GFP_KERNEL);
if (!m) {
bch_err(c, "error allocating memory for gc_stripes, idx %llu",
@ -775,11 +677,16 @@ err:
m->block_sectors[p.ec.block] += sectors;
struct bch_replicas_padded r = m->r;
struct disk_accounting_pos acc = {
.type = BCH_DISK_ACCOUNTING_replicas,
};
memcpy(&acc.replicas, &m->r.e, replicas_entry_bytes(&m->r.e));
mutex_unlock(&c->ec_stripes_heap_lock);
r.e.data_type = data_type;
bch2_update_replicas(c, k, &r.e, sectors);
acc.replicas.data_type = data_type;
int ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1, true);
if (ret)
return ret;
}
return 0;
@ -791,7 +698,6 @@ static int __trigger_extent(struct btree_trans *trans,
enum btree_iter_update_trigger_flags flags)
{
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;
struct extent_ptr_decoded p;
@ -818,11 +724,7 @@ static int __trigger_extent(struct btree_trans *trans,
if (p.ptr.cached) {
if (!stale) {
ret = !gc
? bch2_mod_dev_cached_sectors(trans, p.ptr.dev, disk_sectors)
: update_cached_sectors(c, k, p.ptr.dev, disk_sectors);
bch2_fs_fatal_err_on(ret && gc, c, "%s: no replicas entry while updating cached sectors",
bch2_err_str(ret));
ret = bch2_mod_dev_cached_sectors(trans, p.ptr.dev, disk_sectors, gc);
if (ret)
return ret;
}
@ -844,16 +746,7 @@ static int __trigger_extent(struct btree_trans *trans,
}
if (acc.replicas.nr_devs) {
ret = !gc
? bch2_disk_accounting_mod(trans, &acc, &replicas_sectors, 1)
: bch2_update_replicas(c, k, &acc.replicas, replicas_sectors);
if (unlikely(ret && gc)) {
struct printbuf buf = PRINTBUF;
bch2_bkey_val_to_text(&buf, c, k);
bch2_fs_fatal_error(c, ": no replicas entry for %s", buf.buf);
printbuf_exit(&buf);
}
ret = bch2_disk_accounting_mod(trans, &acc, &replicas_sectors, 1, gc);
if (ret)
return ret;
}
@ -906,36 +799,18 @@ static int __trigger_reservation(struct btree_trans *trans,
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;
if (flags & (BTREE_TRIGGER_transactional|BTREE_TRIGGER_gc)) {
s64 sectors = k.k->size;
if (flags & BTREE_TRIGGER_overwrite)
sectors = -sectors;
if (flags & BTREE_TRIGGER_overwrite)
sectors = -sectors;
if (flags & BTREE_TRIGGER_transactional) {
struct disk_accounting_pos acc = {
.type = BCH_DISK_ACCOUNTING_persistent_reserved,
.persistent_reserved.nr_replicas = replicas,
.persistent_reserved.nr_replicas = bkey_s_c_to_reservation(k).v->nr_replicas,
};
return bch2_disk_accounting_mod(trans, &acc, &sectors, 1);
}
if (flags & BTREE_TRIGGER_gc) {
sectors *= replicas;
percpu_down_read(&c->mark_lock);
preempt_disable();
struct bch_fs_usage *fs_usage = this_cpu_ptr(c->usage_gc);
replicas = min(replicas, ARRAY_SIZE(fs_usage->persistent_reserved));
fs_usage->b.reserved += sectors;
fs_usage->persistent_reserved[replicas - 1] += sectors;
preempt_enable();
percpu_up_read(&c->mark_lock);
return bch2_disk_accounting_mod(trans, &acc, &sectors, 1, flags & BTREE_TRIGGER_gc);
}
return 0;
@ -989,10 +864,13 @@ err:
return ret;
}
static int bch2_mark_metadata_bucket(struct bch_fs *c, struct bch_dev *ca,
static int bch2_mark_metadata_bucket(struct btree_trans *trans, struct bch_dev *ca,
u64 b, enum bch_data_type data_type, unsigned sectors,
enum btree_iter_update_trigger_flags flags)
{
struct bch_fs *c = trans->c;
int ret = 0;
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",
@ -1019,9 +897,10 @@ static int bch2_mark_metadata_bucket(struct bch_fs *c, struct bch_dev *ca,
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);
bucket_unlock(g);
percpu_up_read(&c->mark_lock);
return 0;
ret = bch2_alloc_key_to_dev_counters(trans, ca, &old, &new, flags);
return ret;
err:
bucket_unlock(g);
err_unlock:
@ -1045,7 +924,7 @@ int bch2_trans_mark_metadata_bucket(struct btree_trans *trans,
return 0;
if (flags & BTREE_TRIGGER_gc)
return bch2_mark_metadata_bucket(trans->c, ca, b, type, sectors, flags);
return bch2_mark_metadata_bucket(trans, 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));

16
fs/bcachefs/buckets.h
View File

@ -273,16 +273,6 @@ static inline u64 dev_buckets_available(struct bch_dev *ca,
/* Filesystem usage: */
static inline unsigned __fs_usage_u64s(unsigned nr_replicas)
{
return sizeof(struct bch_fs_usage) / sizeof(u64) + nr_replicas;
}
static inline unsigned fs_usage_u64s(struct bch_fs *c)
{
return __fs_usage_u64s(READ_ONCE(c->replicas.nr));
}
static inline unsigned dev_usage_u64s(void)
{
return sizeof(struct bch_dev_usage) / sizeof(u64);
@ -291,12 +281,6 @@ static inline unsigned dev_usage_u64s(void)
struct bch_fs_usage_short
bch2_fs_usage_read_short(struct bch_fs *);
void bch2_dev_usage_update(struct bch_fs *, struct bch_dev *,
const struct bch_alloc_v4 *,
const struct bch_alloc_v4 *);
int bch2_update_replicas(struct bch_fs *, struct bkey_s_c,
struct bch_replicas_entry_v1 *, s64);
int bch2_bucket_ref_update(struct btree_trans *, struct bch_dev *,
struct bkey_s_c, const struct bch_extent_ptr *,
s64, enum bch_data_type, u8, u8, u32 *);

7
fs/bcachefs/buckets_types.h
View File

@ -57,13 +57,6 @@ struct bch_fs_usage_base {
u64 nr_inodes;
};
struct bch_fs_usage {
/* all fields are in units of 512 byte sectors: */
struct bch_fs_usage_base b;
u64 persistent_reserved[BCH_REPLICAS_MAX];
u64 replicas[];
};
struct bch_fs_usage_short {
u64 capacity;
u64 used;

193
fs/bcachefs/disk_accounting.c
View File

@ -66,9 +66,20 @@ static const char * const disk_accounting_type_strs[] = {
NULL
};
static inline void accounting_key_init(struct bkey_i *k, struct disk_accounting_pos *pos,
s64 *d, unsigned nr)
{
struct bkey_i_accounting *acc = bkey_accounting_init(k);
acc->k.p = disk_accounting_pos_to_bpos(pos);
set_bkey_val_u64s(&acc->k, sizeof(struct bch_accounting) / sizeof(u64) + nr);
memcpy_u64s_small(acc->v.d, d, nr);
}
int bch2_disk_accounting_mod(struct btree_trans *trans,
struct disk_accounting_pos *k,
s64 *d, unsigned nr)
s64 *d, unsigned nr, bool gc)
{
/* Normalize: */
switch (k->type) {
@ -79,21 +90,18 @@ int bch2_disk_accounting_mod(struct btree_trans *trans,
BUG_ON(nr > BCH_ACCOUNTING_MAX_COUNTERS);
struct {
__BKEY_PADDED(k, BCH_ACCOUNTING_MAX_COUNTERS);
} k_i;
struct bkey_i_accounting *acc = bkey_accounting_init(&k_i.k);
struct { __BKEY_PADDED(k, BCH_ACCOUNTING_MAX_COUNTERS); } k_i;
acc->k.p = disk_accounting_pos_to_bpos(k);
set_bkey_val_u64s(&acc->k, sizeof(struct bch_accounting) / sizeof(u64) + nr);
accounting_key_init(&k_i.k, k, d, nr);
memcpy_u64s_small(acc->v.d, d, nr);
return bch2_trans_update_buffered(trans, BTREE_ID_accounting, &acc->k_i);
return likely(!gc)
? bch2_trans_update_buffered(trans, BTREE_ID_accounting, &k_i.k)
: bch2_accounting_mem_add(trans, bkey_i_to_s_c_accounting(&k_i.k), true);
}
int bch2_mod_dev_cached_sectors(struct btree_trans *trans,
unsigned dev, s64 sectors)
unsigned dev, s64 sectors,
bool gc)
{
struct disk_accounting_pos acc = {
.type = BCH_DISK_ACCOUNTING_replicas,
@ -101,7 +109,7 @@ int bch2_mod_dev_cached_sectors(struct btree_trans *trans,
bch2_replicas_entry_cached(&acc.replicas, dev);
return bch2_disk_accounting_mod(trans, &acc, &sectors, 1);
return bch2_disk_accounting_mod(trans, &acc, &sectors, 1, gc);
}
int bch2_accounting_invalid(struct bch_fs *c, struct bkey_s_c k,
@ -199,7 +207,7 @@ int bch2_accounting_update_sb(struct btree_trans *trans)
return 0;
}
static int __bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_accounting a)
static int __bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_accounting a, bool gc)
{
struct bch_replicas_padded r;
@ -207,7 +215,7 @@ static int __bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_
!bch2_replicas_marked_locked(c, &r.e))
return -BCH_ERR_btree_insert_need_mark_replicas;
struct bch_accounting_mem *acc = &c->accounting;
struct bch_accounting_mem *acc = &c->accounting[gc];
unsigned new_nr_counters = acc->nr_counters + bch2_accounting_counters(a.k);
u64 __percpu *new_counters = __alloc_percpu_gfp(new_nr_counters * sizeof(u64),
@ -243,11 +251,11 @@ static int __bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_
return 0;
}
int bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_accounting a)
int bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_accounting a, bool gc)
{
percpu_up_read(&c->mark_lock);
percpu_down_write(&c->mark_lock);
int ret = __bch2_accounting_mem_mod_slowpath(c, a);
int ret = __bch2_accounting_mem_mod_slowpath(c, a, gc);
percpu_up_write(&c->mark_lock);
percpu_down_read(&c->mark_lock);
return ret;
@ -263,7 +271,7 @@ int bch2_accounting_mem_mod_slowpath(struct bch_fs *c, struct bkey_s_c_accountin
*/
int bch2_fs_replicas_usage_read(struct bch_fs *c, darray_char *usage)
{
struct bch_accounting_mem *acc = &c->accounting;
struct bch_accounting_mem *acc = &c->accounting[0];
int ret = 0;
darray_init(usage);
@ -296,6 +304,129 @@ int bch2_fs_replicas_usage_read(struct bch_fs *c, darray_char *usage)
return ret;
}
/* Ensures all counters in @src exist in @dst: */
static int copy_counters(struct bch_accounting_mem *dst,
struct bch_accounting_mem *src)
{
unsigned orig_dst_k_nr = dst->k.nr;
unsigned dst_counters = dst->nr_counters;
darray_for_each(src->k, i)
if (eytzinger0_find(dst->k.data, orig_dst_k_nr, sizeof(dst->k.data[0]),
accounting_pos_cmp, &i->pos) >= orig_dst_k_nr) {
if (darray_push(&dst->k, ((struct accounting_pos_offset) {
.pos = i->pos,
.offset = dst_counters,
.nr_counters = i->nr_counters })))
goto err;
dst_counters += i->nr_counters;
}
if (dst->k.nr == orig_dst_k_nr)
return 0;
u64 __percpu *new_counters = __alloc_percpu_gfp(dst_counters * sizeof(u64),
sizeof(u64), GFP_KERNEL);
if (!new_counters)
goto err;
preempt_disable();
memcpy(this_cpu_ptr(new_counters),
bch2_acc_percpu_u64s(dst->v, dst->nr_counters),
dst->nr_counters * sizeof(u64));
preempt_enable();
free_percpu(dst->v);
dst->v = new_counters;
dst->nr_counters = dst_counters;
eytzinger0_sort(dst->k.data, dst->k.nr, sizeof(dst->k.data[0]), accounting_pos_cmp, NULL);
return 0;
err:
dst->k.nr = orig_dst_k_nr;
return -BCH_ERR_ENOMEM_disk_accounting;
}
int bch2_accounting_gc_done(struct bch_fs *c)
{
struct bch_accounting_mem *dst = &c->accounting[0];
struct bch_accounting_mem *src = &c->accounting[1];
struct btree_trans *trans = bch2_trans_get(c);
struct printbuf buf = PRINTBUF;
int ret = 0;
percpu_down_write(&c->mark_lock);
ret = copy_counters(dst, src) ?:
copy_counters(src, dst);
if (ret)
goto err;
BUG_ON(dst->k.nr != src->k.nr);
for (unsigned i = 0; i < src->k.nr; i++) {
BUG_ON(src->k.data[i].nr_counters != dst->k.data[i].nr_counters);
BUG_ON(!bpos_eq(dst->k.data[i].pos, src->k.data[i].pos));
struct disk_accounting_pos acc_k;
bpos_to_disk_accounting_pos(&acc_k, src->k.data[i].pos);
unsigned nr = src->k.data[i].nr_counters;
u64 src_v[BCH_ACCOUNTING_MAX_COUNTERS];
u64 dst_v[BCH_ACCOUNTING_MAX_COUNTERS];
bch2_accounting_mem_read_counters(c, i, dst_v, nr, false);
bch2_accounting_mem_read_counters(c, i, src_v, nr, true);
if (memcmp(dst_v, src_v, nr * sizeof(u64))) {
printbuf_reset(&buf);
prt_str(&buf, "accounting mismatch for ");
bch2_accounting_key_to_text(&buf, &acc_k);
prt_str(&buf, ": got");
for (unsigned j = 0; j < nr; j++)
prt_printf(&buf, " %llu", dst_v[j]);
prt_str(&buf, " should be");
for (unsigned j = 0; j < nr; j++)
prt_printf(&buf, " %llu", src_v[j]);
for (unsigned j = 0; j < nr; j++)
src_v[j] -= dst_v[j];
if (fsck_err(c, accounting_mismatch, "%s", buf.buf)) {
ret = commit_do(trans, NULL, NULL, 0,
bch2_disk_accounting_mod(trans, &acc_k, src_v, nr, false));
if (ret)
goto err;
if (!test_bit(BCH_FS_may_go_rw, &c->flags)) {
memset(&trans->fs_usage_delta, 0, sizeof(trans->fs_usage_delta));
struct { __BKEY_PADDED(k, BCH_ACCOUNTING_MAX_COUNTERS); } k_i;
accounting_key_init(&k_i.k, &acc_k, src_v, nr);
bch2_accounting_mem_mod_locked(trans, bkey_i_to_s_c_accounting(&k_i.k), false);
preempt_disable();
struct bch_fs_usage_base *dst = this_cpu_ptr(c->usage);
struct bch_fs_usage_base *src = &trans->fs_usage_delta;
acc_u64s((u64 *) dst, (u64 *) src, sizeof(*src) / sizeof(u64));
preempt_enable();
}
}
}
}
err:
fsck_err:
percpu_up_write(&c->mark_lock);
printbuf_exit(&buf);
bch2_trans_put(trans);
bch_err_fn(c, ret);
return ret;
}
static int accounting_read_key(struct bch_fs *c, struct bkey_s_c k)
{
struct printbuf buf = PRINTBUF;
@ -304,7 +435,7 @@ static int accounting_read_key(struct bch_fs *c, struct bkey_s_c k)
return 0;
percpu_down_read(&c->mark_lock);
int ret = __bch2_accounting_mem_mod(c, bkey_s_c_to_accounting(k));
int ret = __bch2_accounting_mem_mod(c, bkey_s_c_to_accounting(k), false);
percpu_up_read(&c->mark_lock);
if (bch2_accounting_key_is_zero(bkey_s_c_to_accounting(k)) &&
@ -331,7 +462,7 @@ fsck_err:
*/
int bch2_accounting_read(struct bch_fs *c)
{
struct bch_accounting_mem *acc = &c->accounting;
struct bch_accounting_mem *acc = &c->accounting[0];
int ret = bch2_trans_run(c,
for_each_btree_key(trans, iter,
@ -391,7 +522,7 @@ int bch2_accounting_read(struct bch_fs *c)
bpos_to_disk_accounting_pos(&k, acc->k.data[i].pos);
u64 v[BCH_ACCOUNTING_MAX_COUNTERS];
bch2_accounting_mem_read_counters(c, i, v, ARRAY_SIZE(v));
bch2_accounting_mem_read_counters(c, i, v, ARRAY_SIZE(v), false);
switch (k.type) {
case BCH_DISK_ACCOUNTING_persistent_reserved:
@ -441,8 +572,9 @@ int bch2_dev_usage_remove(struct bch_fs *c, unsigned dev)
bch2_btree_write_buffer_flush_sync(trans));
}
int bch2_dev_usage_init(struct bch_dev *ca)
int bch2_dev_usage_init(struct bch_dev *ca, bool gc)
{
struct bch_fs *c = ca->fs;
struct disk_accounting_pos acc = {
.type = BCH_DISK_ACCOUNTING_dev_data_type,
.dev_data_type.dev = ca->dev_idx,
@ -450,14 +582,21 @@ int bch2_dev_usage_init(struct bch_dev *ca)
};
u64 v[3] = { ca->mi.nbuckets - ca->mi.first_bucket, 0, 0 };
return bch2_trans_do(ca->fs, NULL, NULL, 0,
bch2_disk_accounting_mod(trans, &acc, v, ARRAY_SIZE(v)));
int ret = bch2_trans_do(c, NULL, NULL, 0,
bch2_disk_accounting_mod(trans, &acc, v, ARRAY_SIZE(v), gc));
bch_err_fn(c, ret);
return ret;
}
void bch2_accounting_free(struct bch_accounting_mem *acc)
{
darray_exit(&acc->k);
free_percpu(acc->v);
acc->v = NULL;
acc->nr_counters = 0;
}
void bch2_fs_accounting_exit(struct bch_fs *c)
{
struct bch_accounting_mem *acc = &c->accounting;
darray_exit(&acc->k);
free_percpu(acc->v);
bch2_accounting_free(&c->accounting[0]);
}

86
fs/bcachefs/disk_accounting.h
View File

@ -78,11 +78,9 @@ static inline struct bpos disk_accounting_pos_to_bpos(struct disk_accounting_pos
return ret;
}
int bch2_disk_accounting_mod(struct btree_trans *,
struct disk_accounting_pos *,
s64 *, unsigned);
int bch2_mod_dev_cached_sectors(struct btree_trans *trans,
unsigned dev, s64 sectors);
int bch2_disk_accounting_mod(struct btree_trans *, struct disk_accounting_pos *,
s64 *, unsigned, bool);
int bch2_mod_dev_cached_sectors(struct btree_trans *, unsigned, s64, bool);
int bch2_accounting_invalid(struct bch_fs *, struct bkey_s_c,
enum bch_validate_flags, struct printbuf *);
@ -106,15 +104,15 @@ static inline int accounting_pos_cmp(const void *_l, const void *_r)
return bpos_cmp(*l, *r);
}
int bch2_accounting_mem_mod_slowpath(struct bch_fs *, struct bkey_s_c_accounting);
int bch2_accounting_mem_mod_slowpath(struct bch_fs *, struct bkey_s_c_accounting, bool);
static inline int __bch2_accounting_mem_mod(struct bch_fs *c, struct bkey_s_c_accounting a)
static inline int __bch2_accounting_mem_mod(struct bch_fs *c, struct bkey_s_c_accounting a, bool gc)
{
struct bch_accounting_mem *acc = &c->accounting;
struct bch_accounting_mem *acc = &c->accounting[gc];
unsigned idx = eytzinger0_find(acc->k.data, acc->k.nr, sizeof(acc->k.data[0]),
accounting_pos_cmp, &a.k->p);
if (unlikely(idx >= acc->k.nr))
return bch2_accounting_mem_mod_slowpath(c, a);
return bch2_accounting_mem_mod_slowpath(c, a, gc);
unsigned offset = acc->k.data[idx].offset;
@ -129,41 +127,51 @@ static inline int __bch2_accounting_mem_mod(struct bch_fs *c, struct bkey_s_c_ac
* Update in memory counters so they match the btree update we're doing; called
* from transaction commit path
*/
static inline int bch2_accounting_mem_mod(struct btree_trans *trans, struct
bkey_s_c_accounting a)
static inline int bch2_accounting_mem_mod_locked(struct btree_trans *trans, struct bkey_s_c_accounting a, bool gc)
{
struct bch_fs *c = trans->c;
struct disk_accounting_pos acc_k;
bpos_to_disk_accounting_pos(&acc_k, a.k->p);
switch (acc_k.type) {
case BCH_DISK_ACCOUNTING_persistent_reserved:
trans->fs_usage_delta.reserved += acc_k.persistent_reserved.nr_replicas * a.v->d[0];
break;
case BCH_DISK_ACCOUNTING_replicas:
fs_usage_data_type_to_base(&trans->fs_usage_delta, acc_k.replicas.data_type, a.v->d[0]);
break;
case BCH_DISK_ACCOUNTING_dev_data_type:
rcu_read_lock();
struct bch_dev *ca = bch2_dev_rcu(c, acc_k.dev_data_type.dev);
if (ca) {
this_cpu_add(ca->usage->d[acc_k.dev_data_type.data_type].buckets, a.v->d[0]);
this_cpu_add(ca->usage->d[acc_k.dev_data_type.data_type].sectors, a.v->d[1]);
this_cpu_add(ca->usage->d[acc_k.dev_data_type.data_type].fragmented, a.v->d[2]);
if (!gc) {
struct disk_accounting_pos acc_k;
bpos_to_disk_accounting_pos(&acc_k, a.k->p);
switch (acc_k.type) {
case BCH_DISK_ACCOUNTING_persistent_reserved:
trans->fs_usage_delta.reserved += acc_k.persistent_reserved.nr_replicas * a.v->d[0];
break;
case BCH_DISK_ACCOUNTING_replicas:
fs_usage_data_type_to_base(&trans->fs_usage_delta, acc_k.replicas.data_type, a.v->d[0]);
break;
case BCH_DISK_ACCOUNTING_dev_data_type:
rcu_read_lock();
struct bch_dev *ca = bch2_dev_rcu(c, acc_k.dev_data_type.dev);
if (ca) {
this_cpu_add(ca->usage->d[acc_k.dev_data_type.data_type].buckets, a.v->d[0]);
this_cpu_add(ca->usage->d[acc_k.dev_data_type.data_type].sectors, a.v->d[1]);
this_cpu_add(ca->usage->d[acc_k.dev_data_type.data_type].fragmented, a.v->d[2]);
}
rcu_read_unlock();
break;
}
rcu_read_unlock();
break;
}
return __bch2_accounting_mem_mod(c, a);
return __bch2_accounting_mem_mod(c, a, gc);
}
static inline void bch2_accounting_mem_read_counters(struct bch_fs *c,
unsigned idx,
u64 *v, unsigned nr)
static inline int bch2_accounting_mem_add(struct btree_trans *trans, struct bkey_s_c_accounting a, bool gc)
{
percpu_down_read(&trans->c->mark_lock);
int ret = bch2_accounting_mem_mod_locked(trans, a, gc);
percpu_up_read(&trans->c->mark_lock);
return ret;
}
static inline void bch2_accounting_mem_read_counters(struct bch_fs *c, unsigned idx,
u64 *v, unsigned nr, bool gc)
{
memset(v, 0, sizeof(*v) * nr);
struct bch_accounting_mem *acc = &c->accounting;
struct bch_accounting_mem *acc = &c->accounting[0];
if (unlikely(idx >= acc->k.nr))
return;
@ -177,19 +185,23 @@ static inline void bch2_accounting_mem_read_counters(struct bch_fs *c,
static inline void bch2_accounting_mem_read(struct bch_fs *c, struct bpos p,
u64 *v, unsigned nr)
{
struct bch_accounting_mem *acc = &c->accounting;
struct bch_accounting_mem *acc = &c->accounting[0];
unsigned idx = eytzinger0_find(acc->k.data, acc->k.nr, sizeof(acc->k.data[0]),
accounting_pos_cmp, &p);
bch2_accounting_mem_read_counters(c, idx, v, nr);
bch2_accounting_mem_read_counters(c, idx, v, nr, false);
}
int bch2_fs_replicas_usage_read(struct bch_fs *, darray_char *);
int bch2_accounting_gc_done(struct bch_fs *);
int bch2_accounting_read(struct bch_fs *);
int bch2_dev_usage_remove(struct bch_fs *, unsigned);
int bch2_dev_usage_init(struct bch_dev *);
int bch2_dev_usage_init(struct bch_dev *, bool);
void bch2_accounting_free(struct bch_accounting_mem *);
void bch2_fs_accounting_exit(struct bch_fs *);
#endif /* _BCACHEFS_DISK_ACCOUNTING_H */

97
fs/bcachefs/ec.c
View File

@ -301,13 +301,12 @@ static int mark_stripe_bucket(struct btree_trans *trans,
bucket_lock(g);
struct bch_alloc_v4 old = bucket_m_to_alloc(*g), new = old;
ret = __mark_stripe_bucket(trans, ca, s, ptr_idx, deleting, bucket, &new, flags);
if (!ret) {
alloc_to_bucket(g, new);
bch2_dev_usage_update(c, ca, &old, &new);
}
alloc_to_bucket(g, new);
bucket_unlock(g);
err_unlock:
percpu_up_read(&c->mark_lock);
if (!ret)
ret = bch2_alloc_key_to_dev_counters(trans, ca, &old, &new, flags);
}
err:
bch2_dev_put(ca);
@ -369,7 +368,12 @@ int bch2_trigger_stripe(struct btree_trans *trans,
if (unlikely(flags & BTREE_TRIGGER_check_repair))
return bch2_check_fix_ptrs(trans, btree, level, _new.s_c, flags);
if (flags & BTREE_TRIGGER_transactional) {
BUG_ON(new_s && old_s &&
(new_s->nr_blocks != old_s->nr_blocks ||
new_s->nr_redundant != old_s->nr_redundant));
if (flags & (BTREE_TRIGGER_transactional|BTREE_TRIGGER_gc)) {
/*
* If the pointers aren't changing, we don't need to do anything:
*/
@ -380,9 +384,34 @@ int bch2_trigger_stripe(struct btree_trans *trans,
new_s->nr_blocks * sizeof(struct bch_extent_ptr)))
return 0;
BUG_ON(new_s && old_s &&
(new_s->nr_blocks != old_s->nr_blocks ||
new_s->nr_redundant != old_s->nr_redundant));
struct gc_stripe *gc = NULL;
if (flags & BTREE_TRIGGER_gc) {
gc = genradix_ptr_alloc(&c->gc_stripes, idx, GFP_KERNEL);
if (!gc) {
bch_err(c, "error allocating memory for gc_stripes, idx %llu", idx);
return -BCH_ERR_ENOMEM_mark_stripe;
}
/*
* This will be wrong when we bring back runtime gc: we should
* be unmarking the old key and then marking the new key
*
* Also: when we bring back runtime gc, locking
*/
gc->alive = true;
gc->sectors = le16_to_cpu(new_s->sectors);
gc->nr_blocks = new_s->nr_blocks;
gc->nr_redundant = new_s->nr_redundant;
for (unsigned i = 0; i < new_s->nr_blocks; i++)
gc->ptrs[i] = new_s->ptrs[i];
/*
* gc recalculates this field from stripe ptr
* references:
*/
memset(gc->block_sectors, 0, sizeof(gc->block_sectors));
}
if (new_s) {
s64 sectors = (u64) le16_to_cpu(new_s->sectors) * new_s->nr_redundant;
@ -391,9 +420,12 @@ int bch2_trigger_stripe(struct btree_trans *trans,
.type = BCH_DISK_ACCOUNTING_replicas,
};
bch2_bkey_to_replicas(&acc.replicas, new);
int ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1);
int ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1, gc);
if (ret)
return ret;
if (gc)
memcpy(&gc->r.e, &acc.replicas, replicas_entry_bytes(&acc.replicas));
}
if (old_s) {
@ -403,7 +435,7 @@ int bch2_trigger_stripe(struct btree_trans *trans,
.type = BCH_DISK_ACCOUNTING_replicas,
};
bch2_bkey_to_replicas(&acc.replicas, old);
int ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1);
int ret = bch2_disk_accounting_mod(trans, &acc, &sectors, 1, gc);
if (ret)
return ret;
}
@ -452,51 +484,6 @@ int bch2_trigger_stripe(struct btree_trans *trans,
}
}
if (flags & BTREE_TRIGGER_gc) {
struct gc_stripe *m =
genradix_ptr_alloc(&c->gc_stripes, idx, GFP_KERNEL);
if (!m) {
bch_err(c, "error allocating memory for gc_stripes, idx %llu",
idx);
return -BCH_ERR_ENOMEM_mark_stripe;
}
/*
* This will be wrong when we bring back runtime gc: we should
* be unmarking the old key and then marking the new key
*/
m->alive = true;
m->sectors = le16_to_cpu(new_s->sectors);
m->nr_blocks = new_s->nr_blocks;
m->nr_redundant = new_s->nr_redundant;
for (unsigned i = 0; i < new_s->nr_blocks; i++)
m->ptrs[i] = new_s->ptrs[i];
bch2_bkey_to_replicas(&m->r.e, new);
/*
* gc recalculates this field from stripe ptr
* references:
*/
memset(m->block_sectors, 0, sizeof(m->block_sectors));
int ret = mark_stripe_buckets(trans, old, new, flags);
if (ret)
return ret;
ret = bch2_update_replicas(c, new, &m->r.e,
((s64) m->sectors * m->nr_redundant));
if (ret) {
struct printbuf buf = PRINTBUF;
bch2_bkey_val_to_text(&buf, c, new);
bch2_fs_fatal_error(c, ": no replicas entry for %s", buf.buf);
printbuf_exit(&buf);
return ret;
}
}
return 0;
}

43
fs/bcachefs/inode.c
View File

@ -600,41 +600,26 @@ int bch2_trigger_inode(struct btree_trans *trans,
struct bkey_s new,
enum btree_iter_update_trigger_flags flags)
{
s64 nr = (s64) bkey_is_inode(new.k) - (s64) bkey_is_inode(old.k);
if (flags & BTREE_TRIGGER_transactional) {
if (nr) {
struct disk_accounting_pos acc = {
.type = BCH_DISK_ACCOUNTING_nr_inodes
};
int ret = bch2_disk_accounting_mod(trans, &acc, &nr, 1);
if (ret)
return ret;
}
bool old_deleted = bkey_is_deleted_inode(old);
bool new_deleted = bkey_is_deleted_inode(new.s_c);
if (old_deleted != new_deleted) {
int ret = bch2_btree_bit_mod_buffered(trans, BTREE_ID_deleted_inodes,
new.k->p, new_deleted);
if (ret)
return ret;
}
}
if ((flags & BTREE_TRIGGER_atomic) && (flags & BTREE_TRIGGER_insert)) {
BUG_ON(!trans->journal_res.seq);
bkey_s_to_inode_v3(new).v->bi_journal_seq = cpu_to_le64(trans->journal_res.seq);
}
if (flags & BTREE_TRIGGER_gc) {
struct bch_fs *c = trans->c;
s64 nr = bkey_is_inode(new.k) - bkey_is_inode(old.k);
if ((flags & (BTREE_TRIGGER_transactional|BTREE_TRIGGER_gc)) && nr) {
struct disk_accounting_pos acc = { .type = BCH_DISK_ACCOUNTING_nr_inodes };
int ret = bch2_disk_accounting_mod(trans, &acc, &nr, 1, flags & BTREE_TRIGGER_gc);
if (ret)
return ret;
}
percpu_down_read(&c->mark_lock);
this_cpu_add(c->usage_gc->b.nr_inodes, nr);
percpu_up_read(&c->mark_lock);
int deleted_delta = (int) bkey_is_deleted_inode(new.s_c) -
(int) bkey_is_deleted_inode(old);
if ((flags & BTREE_TRIGGER_transactional) && deleted_delta) {
int ret = bch2_btree_bit_mod_buffered(trans, BTREE_ID_deleted_inodes,
new.k->p, deleted_delta > 0);
if (ret)
return ret;
}
return 0;

3
fs/bcachefs/recovery.c
View File

@ -1031,8 +1031,7 @@ int bch2_fs_initialize(struct bch_fs *c)
goto err;
for_each_member_device(c, ca) {
ret = bch2_dev_usage_init(ca);
bch_err_msg(c, ret, "initializing device usage");
ret = bch2_dev_usage_init(ca, false);
if (ret) {
bch2_dev_put(ca);
goto err;

86
fs/bcachefs/replicas.c
View File

@ -264,73 +264,6 @@ bool bch2_replicas_marked(struct bch_fs *c,
return ret;
}
static void __replicas_table_update(struct bch_fs_usage *dst,
struct bch_replicas_cpu *dst_r,
struct bch_fs_usage *src,
struct bch_replicas_cpu *src_r)
{
int src_idx, dst_idx;
*dst = *src;
for (src_idx = 0; src_idx < src_r->nr; src_idx++) {
if (!src->replicas[src_idx])
continue;
dst_idx = __replicas_entry_idx(dst_r,
cpu_replicas_entry(src_r, src_idx));
BUG_ON(dst_idx < 0);
dst->replicas[dst_idx] = src->replicas[src_idx];
}
}
static void __replicas_table_update_pcpu(struct bch_fs_usage __percpu *dst_p,
struct bch_replicas_cpu *dst_r,
struct bch_fs_usage __percpu *src_p,
struct bch_replicas_cpu *src_r)
{
unsigned src_nr = sizeof(struct bch_fs_usage) / sizeof(u64) + src_r->nr;
struct bch_fs_usage *dst, *src = (void *)
bch2_acc_percpu_u64s((u64 __percpu *) src_p, src_nr);
preempt_disable();
dst = this_cpu_ptr(dst_p);
preempt_enable();
__replicas_table_update(dst, dst_r, src, src_r);
}
/*
* Resize filesystem accounting:
*/
static int replicas_table_update(struct bch_fs *c,
struct bch_replicas_cpu *new_r)
{
struct bch_fs_usage __percpu *new_gc = NULL;
unsigned bytes = sizeof(struct bch_fs_usage) +
sizeof(u64) * new_r->nr;
int ret = 0;
if ((c->usage_gc &&
!(new_gc = __alloc_percpu_gfp(bytes, sizeof(u64), GFP_KERNEL))))
goto err;
if (c->usage_gc)
__replicas_table_update_pcpu(new_gc, new_r,
c->usage_gc, &c->replicas);
swap(c->usage_gc, new_gc);
swap(c->replicas, *new_r);
out:
free_percpu(new_gc);
return ret;
err:
bch_err(c, "error updating replicas table: memory allocation failure");
ret = -BCH_ERR_ENOMEM_replicas_table;
goto out;
}
noinline
static int bch2_mark_replicas_slowpath(struct bch_fs *c,
struct bch_replicas_entry_v1 *new_entry)
@ -378,7 +311,7 @@ static int bch2_mark_replicas_slowpath(struct bch_fs *c,
/* don't update in memory replicas until changes are persistent */
percpu_down_write(&c->mark_lock);
if (new_r.entries)
ret = replicas_table_update(c, &new_r);
swap(c->replicas, new_r);
if (new_gc.entries)
swap(new_gc, c->replicas_gc);
percpu_up_write(&c->mark_lock);
@ -413,8 +346,9 @@ int bch2_replicas_gc_end(struct bch_fs *c, int ret)
percpu_down_write(&c->mark_lock);
ret = ret ?:
bch2_cpu_replicas_to_sb_replicas(c, &c->replicas_gc) ?:
replicas_table_update(c, &c->replicas_gc);
bch2_cpu_replicas_to_sb_replicas(c, &c->replicas_gc);
if (!ret)
swap(c->replicas, c->replicas_gc);
kfree(c->replicas_gc.entries);
c->replicas_gc.entries = NULL;
@ -628,8 +562,7 @@ int bch2_sb_replicas_to_cpu_replicas(struct bch_fs *c)
bch2_cpu_replicas_sort(&new_r);
percpu_down_write(&c->mark_lock);
ret = replicas_table_update(c, &new_r);
swap(c->replicas, new_r);
percpu_up_write(&c->mark_lock);
kfree(new_r.entries);
@ -931,10 +864,8 @@ unsigned bch2_sb_dev_has_data(struct bch_sb *sb, unsigned dev)
unsigned bch2_dev_has_data(struct bch_fs *c, struct bch_dev *ca)
{
unsigned ret;
mutex_lock(&c->sb_lock);
ret = bch2_sb_dev_has_data(c->disk_sb.sb, ca->dev_idx);
unsigned ret = bch2_sb_dev_has_data(c->disk_sb.sb, ca->dev_idx);
mutex_unlock(&c->sb_lock);
return ret;
@ -945,8 +876,3 @@ void bch2_fs_replicas_exit(struct bch_fs *c)
kfree(c->replicas.entries);
kfree(c->replicas_gc.entries);
}
int bch2_fs_replicas_init(struct bch_fs *c)
{
return replicas_table_update(c, &c->replicas);
}

1
fs/bcachefs/replicas.h
View File

@ -79,6 +79,5 @@ extern const struct bch_sb_field_ops bch_sb_field_ops_replicas;
extern const struct bch_sb_field_ops bch_sb_field_ops_replicas_v0;
void bch2_fs_replicas_exit(struct bch_fs *);
int bch2_fs_replicas_init(struct bch_fs *);
#endif /* _BCACHEFS_REPLICAS_H */

9
fs/bcachefs/super.c
View File

@ -899,7 +899,6 @@ static struct bch_fs *bch2_fs_alloc(struct bch_sb *sb, struct bch_opts opts)
bch2_io_clock_init(&c->io_clock[READ]) ?:
bch2_io_clock_init(&c->io_clock[WRITE]) ?:
bch2_fs_journal_init(&c->journal) ?:
bch2_fs_replicas_init(c) ?:
bch2_fs_btree_iter_init(c) ?:
bch2_fs_btree_cache_init(c) ?:
bch2_fs_btree_key_cache_init(&c->btree_key_cache) ?:
@ -1830,7 +1829,7 @@ have_slot:
bch2_write_super(c);
mutex_unlock(&c->sb_lock);
ret = bch2_dev_usage_init(ca);
ret = bch2_dev_usage_init(ca, false);
if (ret)
goto err_late;
@ -2011,9 +2010,9 @@ int bch2_dev_resize(struct bch_fs *c, struct bch_dev *ca, u64 nbuckets)
};
u64 v[3] = { nbuckets - old_nbuckets, 0, 0 };
ret = bch2_dev_freespace_init(c, ca, old_nbuckets, nbuckets) ?:
bch2_trans_do(ca->fs, NULL, NULL, 0,
bch2_disk_accounting_mod(trans, &acc, v, ARRAY_SIZE(v)));
ret = bch2_trans_do(ca->fs, NULL, NULL, 0,
bch2_disk_accounting_mod(trans, &acc, v, ARRAY_SIZE(v), false)) ?:
bch2_dev_freespace_init(c, ca, old_nbuckets, nbuckets);
if (ret)
goto err;
}

4
fs/bcachefs/util.h
View File

@ -719,9 +719,7 @@ static inline void percpu_u64_set(u64 __percpu *dst, u64 src)
static inline void acc_u64s(u64 *acc, const u64 *src, unsigned nr)
{
unsigned i;
for (i = 0; i < nr; i++)
for (unsigned i = 0; i < nr; i++)
acc[i] += src[i];
}