This is prep work for consolidating with JOURNAL_WATERMARK.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
u64 free = max_t(s64, 0,
u.d[BCH_DATA_free].buckets
+ u.d[BCH_DATA_need_discard].buckets
- - bch2_dev_buckets_reserved(ca, RESERVE_stripe));
+ - bch2_dev_buckets_reserved(ca, BCH_WATERMARK_stripe));
return clamp_t(s64, want_free - free, 0, u.d[BCH_DATA_cached].buckets);
}
}
}
-const char * const bch2_alloc_reserves[] = {
+const char * const bch2_watermarks[] = {
#define x(t) #t,
- BCH_ALLOC_RESERVES()
+ BCH_WATERMARKS()
#undef x
NULL
};
return -1;
}
-static inline unsigned open_buckets_reserved(enum alloc_reserve reserve)
+static inline unsigned open_buckets_reserved(enum bch_watermark watermark)
{
- switch (reserve) {
- case RESERVE_btree:
- case RESERVE_btree_movinggc:
+ switch (watermark) {
+ case BCH_WATERMARK_btree:
+ case BCH_WATERMARK_btree_copygc:
return 0;
- case RESERVE_movinggc:
+ case BCH_WATERMARK_copygc:
return OPEN_BUCKETS_COUNT / 4;
default:
return OPEN_BUCKETS_COUNT / 2;
static struct open_bucket *__try_alloc_bucket(struct bch_fs *c, struct bch_dev *ca,
u64 bucket,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
const struct bch_alloc_v4 *a,
struct bucket_alloc_state *s,
struct closure *cl)
spin_lock(&c->freelist_lock);
- if (unlikely(c->open_buckets_nr_free <= open_buckets_reserved(reserve))) {
+ if (unlikely(c->open_buckets_nr_free <= open_buckets_reserved(watermark))) {
if (cl)
closure_wait(&c->open_buckets_wait, cl);
}
static struct open_bucket *try_alloc_bucket(struct btree_trans *trans, struct bch_dev *ca,
- enum alloc_reserve reserve, u64 free_entry,
+ enum bch_watermark watermark, u64 free_entry,
struct bucket_alloc_state *s,
struct bkey_s_c freespace_k,
struct closure *cl)
}
}
- ob = __try_alloc_bucket(c, ca, b, reserve, a, s, cl);
+ ob = __try_alloc_bucket(c, ca, b, watermark, a, s, cl);
if (!ob)
iter.path->preserve = false;
err:
static noinline struct open_bucket *
bch2_bucket_alloc_early(struct btree_trans *trans,
struct bch_dev *ca,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
struct bucket_alloc_state *s,
struct closure *cl)
{
s->buckets_seen++;
- ob = __try_alloc_bucket(trans->c, ca, k.k->p.offset, reserve, a, s, cl);
+ ob = __try_alloc_bucket(trans->c, ca, k.k->p.offset, watermark, a, s, cl);
if (ob)
break;
}
static struct open_bucket *bch2_bucket_alloc_freelist(struct btree_trans *trans,
struct bch_dev *ca,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
struct bucket_alloc_state *s,
struct closure *cl)
{
s->buckets_seen++;
- ob = try_alloc_bucket(trans, ca, reserve,
+ ob = try_alloc_bucket(trans, ca, watermark,
alloc_cursor, s, k, cl);
if (ob) {
iter.path->preserve = false;
*/
static struct open_bucket *bch2_bucket_alloc_trans(struct btree_trans *trans,
struct bch_dev *ca,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
struct closure *cl,
struct bch_dev_usage *usage)
{
bool waiting = false;
again:
bch2_dev_usage_read_fast(ca, usage);
- avail = dev_buckets_free(ca, *usage, reserve);
+ avail = dev_buckets_free(ca, *usage, watermark);
if (usage->d[BCH_DATA_need_discard].buckets > avail)
bch2_do_discards(c);
closure_wake_up(&c->freelist_wait);
alloc:
ob = likely(freespace)
- ? bch2_bucket_alloc_freelist(trans, ca, reserve, &s, cl)
- : bch2_bucket_alloc_early(trans, ca, reserve, &s, cl);
+ ? bch2_bucket_alloc_freelist(trans, ca, watermark, &s, cl)
+ : bch2_bucket_alloc_early(trans, ca, watermark, &s, cl);
if (s.skipped_need_journal_commit * 2 > avail)
bch2_journal_flush_async(&c->journal, NULL);
if (!IS_ERR(ob))
trace_and_count(c, bucket_alloc, ca,
- bch2_alloc_reserves[reserve],
+ bch2_watermarks[watermark],
ob->bucket,
usage->d[BCH_DATA_free].buckets,
avail,
"");
else if (!bch2_err_matches(PTR_ERR(ob), BCH_ERR_transaction_restart))
trace_and_count(c, bucket_alloc_fail, ca,
- bch2_alloc_reserves[reserve],
+ bch2_watermarks[watermark],
0,
usage->d[BCH_DATA_free].buckets,
avail,
}
struct open_bucket *bch2_bucket_alloc(struct bch_fs *c, struct bch_dev *ca,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
struct closure *cl)
{
struct bch_dev_usage usage;
struct open_bucket *ob;
bch2_trans_do(c, NULL, NULL, 0,
- PTR_ERR_OR_ZERO(ob = bch2_bucket_alloc_trans(&trans, ca, reserve,
+ PTR_ERR_OR_ZERO(ob = bch2_bucket_alloc_trans(&trans, ca, watermark,
cl, &usage)));
return ob;
}
struct bch_dev_usage *usage)
{
u64 *v = stripe->next_alloc + ca->dev_idx;
- u64 free_space = dev_buckets_available(ca, RESERVE_none);
+ u64 free_space = dev_buckets_available(ca, BCH_WATERMARK_normal);
u64 free_space_inv = free_space
? div64_u64(1ULL << 48, free_space)
: 1ULL << 48;
bool *have_cache,
unsigned flags,
enum bch_data_type data_type,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
struct closure *cl)
{
struct bch_fs *c = trans->c;
continue;
}
- ob = bch2_bucket_alloc_trans(trans, ca, reserve, cl, &usage);
+ ob = bch2_bucket_alloc_trans(trans, ca, watermark, cl, &usage);
if (!IS_ERR(ob))
bch2_dev_stripe_increment_inlined(ca, stripe, &usage);
percpu_ref_put(&ca->ref);
unsigned nr_replicas,
unsigned *nr_effective,
bool *have_cache,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
unsigned flags,
struct closure *cl)
{
if (ec_open_bucket(c, ptrs))
return 0;
- h = bch2_ec_stripe_head_get(trans, target, 0, nr_replicas - 1, reserve, cl);
+ h = bch2_ec_stripe_head_get(trans, target, 0, nr_replicas - 1, watermark, cl);
if (IS_ERR(h))
return PTR_ERR(h);
if (!h)
unsigned nr_replicas,
unsigned *nr_effective,
bool *have_cache, bool ec,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
unsigned flags)
{
int i, ret = 0;
u64 avail;
bch2_dev_usage_read_fast(ca, &usage);
- avail = dev_buckets_free(ca, usage, reserve);
+ avail = dev_buckets_free(ca, usage, watermark);
if (!avail)
continue;
unsigned nr_replicas,
unsigned *nr_effective,
bool *have_cache,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
unsigned flags,
struct closure *_cl)
{
ret = bucket_alloc_set_partial(c, ptrs, wp, &devs,
nr_replicas, nr_effective,
- have_cache, erasure_code, reserve, flags);
+ have_cache, erasure_code, watermark, flags);
if (ret)
return ret;
target,
nr_replicas, nr_effective,
have_cache,
- reserve, flags, _cl);
+ watermark, flags, _cl);
} else {
retry_blocking:
/*
*/
ret = bch2_bucket_alloc_set_trans(trans, ptrs, &wp->stripe, &devs,
nr_replicas, nr_effective, have_cache,
- flags, wp->data_type, reserve, cl);
+ flags, wp->data_type, watermark, cl);
if (ret &&
!bch2_err_matches(ret, BCH_ERR_transaction_restart) &&
!bch2_err_matches(ret, BCH_ERR_insufficient_devices) &&
unsigned nr_replicas,
unsigned *nr_effective,
bool *have_cache,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
unsigned flags,
struct closure *cl)
{
ret = __open_bucket_add_buckets(trans, ptrs, wp,
devs_have, target, erasure_code,
nr_replicas, nr_effective, have_cache,
- reserve, flags, cl);
+ watermark, flags, cl);
if (bch2_err_matches(ret, BCH_ERR_transaction_restart) ||
bch2_err_matches(ret, BCH_ERR_operation_blocked) ||
bch2_err_matches(ret, BCH_ERR_freelist_empty) ||
ret = __open_bucket_add_buckets(trans, ptrs, wp,
devs_have, target, false,
nr_replicas, nr_effective, have_cache,
- reserve, flags, cl);
+ watermark, flags, cl);
return ret < 0 ? ret : 0;
}
struct bch_devs_list *devs_have,
unsigned nr_replicas,
unsigned nr_replicas_required,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
unsigned flags,
struct closure *cl,
struct write_point **wp_ret)
ret = open_bucket_add_buckets(trans, &ptrs, wp, devs_have,
target, erasure_code,
nr_replicas, &nr_effective,
- &have_cache, reserve,
+ &have_cache, watermark,
flags, NULL);
if (!ret ||
bch2_err_matches(ret, BCH_ERR_transaction_restart))
ret = open_bucket_add_buckets(trans, &ptrs, wp, devs_have,
0, erasure_code,
nr_replicas, &nr_effective,
- &have_cache, reserve,
+ &have_cache, watermark,
flags, cl);
} else {
allocate_blocking:
ret = open_bucket_add_buckets(trans, &ptrs, wp, devs_have,
target, erasure_code,
nr_replicas, &nr_effective,
- &have_cache, reserve,
+ &have_cache, watermark,
flags, cl);
}
alloc_done:
struct bch_fs;
struct bch_devs_List;
-extern const char * const bch2_alloc_reserves[];
+extern const char * const bch2_watermarks[];
void bch2_reset_alloc_cursors(struct bch_fs *);
long bch2_bucket_alloc_new_fs(struct bch_dev *);
struct open_bucket *bch2_bucket_alloc(struct bch_fs *, struct bch_dev *,
- enum alloc_reserve, struct closure *);
+ enum bch_watermark, struct closure *);
static inline void ob_push(struct bch_fs *c, struct open_buckets *obs,
struct open_bucket *ob)
int bch2_bucket_alloc_set_trans(struct btree_trans *, struct open_buckets *,
struct dev_stripe_state *, struct bch_devs_mask *,
unsigned, unsigned *, bool *, unsigned,
- enum bch_data_type, enum alloc_reserve,
+ enum bch_data_type, enum bch_watermark,
struct closure *);
int bch2_alloc_sectors_start_trans(struct btree_trans *,
struct write_point_specifier,
struct bch_devs_list *,
unsigned, unsigned,
- enum alloc_reserve,
+ enum bch_watermark,
unsigned,
struct closure *,
struct write_point **);
u64 skipped_nouse;
};
-struct ec_bucket_buf;
-
-#define BCH_ALLOC_RESERVES() \
- x(btree_movinggc) \
+#define BCH_WATERMARKS() \
+ x(btree_copygc) \
x(btree) \
- x(movinggc) \
- x(none) \
+ x(copygc) \
+ x(normal) \
x(stripe)
-enum alloc_reserve {
-#define x(name) RESERVE_##name,
- BCH_ALLOC_RESERVES()
+enum bch_watermark {
+#define x(name) BCH_WATERMARK_##name,
+ BCH_WATERMARKS()
#undef x
- RESERVE_NR,
+ BCH_WATERMARK_NR,
};
#define OPEN_BUCKETS_COUNT 1024
struct open_buckets ob = { .nr = 0 };
struct bch_devs_list devs_have = (struct bch_devs_list) { 0 };
unsigned nr_reserve;
- enum alloc_reserve alloc_reserve;
+ enum bch_watermark alloc_reserve;
int ret;
if (flags & BTREE_INSERT_USE_RESERVE) {
nr_reserve = 0;
- alloc_reserve = RESERVE_btree_movinggc;
+ alloc_reserve = BCH_WATERMARK_btree_copygc;
} else {
nr_reserve = BTREE_NODE_RESERVE;
- alloc_reserve = RESERVE_btree;
+ alloc_reserve = BCH_WATERMARK_btree;
}
mutex_lock(&c->btree_reserve_cache_lock);
void bch2_dev_usage_init(struct bch_dev *);
-static inline u64 bch2_dev_buckets_reserved(struct bch_dev *ca, enum alloc_reserve reserve)
+static inline u64 bch2_dev_buckets_reserved(struct bch_dev *ca, enum bch_watermark watermark)
{
s64 reserved = 0;
- switch (reserve) {
- case RESERVE_NR:
+ switch (watermark) {
+ case BCH_WATERMARK_NR:
unreachable();
- case RESERVE_stripe:
+ case BCH_WATERMARK_stripe:
reserved += ca->mi.nbuckets >> 6;
fallthrough;
- case RESERVE_none:
+ case BCH_WATERMARK_normal:
reserved += ca->mi.nbuckets >> 6;
fallthrough;
- case RESERVE_movinggc:
+ case BCH_WATERMARK_copygc:
reserved += ca->nr_btree_reserve;
fallthrough;
- case RESERVE_btree:
+ case BCH_WATERMARK_btree:
reserved += ca->nr_btree_reserve;
fallthrough;
- case RESERVE_btree_movinggc:
+ case BCH_WATERMARK_btree_copygc:
break;
}
static inline u64 dev_buckets_free(struct bch_dev *ca,
struct bch_dev_usage usage,
- enum alloc_reserve reserve)
+ enum bch_watermark watermark)
{
return max_t(s64, 0,
usage.d[BCH_DATA_free].buckets -
ca->nr_open_buckets -
- bch2_dev_buckets_reserved(ca, reserve));
+ bch2_dev_buckets_reserved(ca, watermark));
}
static inline u64 __dev_buckets_available(struct bch_dev *ca,
struct bch_dev_usage usage,
- enum alloc_reserve reserve)
+ enum bch_watermark watermark)
{
return max_t(s64, 0,
usage.d[BCH_DATA_free].buckets
+ usage.d[BCH_DATA_need_gc_gens].buckets
+ usage.d[BCH_DATA_need_discard].buckets
- ca->nr_open_buckets
- - bch2_dev_buckets_reserved(ca, reserve));
+ - bch2_dev_buckets_reserved(ca, watermark));
}
static inline u64 dev_buckets_available(struct bch_dev *ca,
- enum alloc_reserve reserve)
+ enum bch_watermark watermark)
{
- return __dev_buckets_available(ca, bch2_dev_usage_read(ca), reserve);
+ return __dev_buckets_available(ca, bch2_dev_usage_read(ca), watermark);
}
/* Filesystem usage: */
&update->op.devs_have,
update->op.nr_replicas,
update->op.nr_replicas,
- update->op.alloc_reserve,
+ update->op.watermark,
0, &cl, &wp);
if (bch2_err_matches(ret, BCH_ERR_operation_blocked)) {
bch2_trans_unlock(trans);
bch2_compression_opt_to_type[io_opts.background_compression ?:
io_opts.compression];
if (m->data_opts.btree_insert_flags & BTREE_INSERT_USE_RESERVE)
- m->op.alloc_reserve = RESERVE_movinggc;
+ m->op.watermark = BCH_WATERMARK_copygc;
bkey_for_each_ptr(ptrs, ptr)
percpu_ref_get(&bch_dev_bkey_exists(c, ptr->dev)->ref);
static struct ec_stripe_head *
ec_new_stripe_head_alloc(struct bch_fs *c, unsigned target,
unsigned algo, unsigned redundancy,
- enum alloc_reserve reserve)
+ enum bch_watermark watermark)
{
struct ec_stripe_head *h;
struct bch_dev *ca;
h->target = target;
h->algo = algo;
h->redundancy = redundancy;
- h->reserve = reserve;
+ h->watermark = watermark;
rcu_read_lock();
h->devs = target_rw_devs(c, BCH_DATA_user, target);
unsigned target,
unsigned algo,
unsigned redundancy,
- enum alloc_reserve reserve)
+ enum bch_watermark watermark)
{
struct bch_fs *c = trans->c;
struct ec_stripe_head *h;
if (h->target == target &&
h->algo == algo &&
h->redundancy == redundancy &&
- h->reserve == reserve) {
+ h->watermark == watermark) {
ret = bch2_trans_mutex_lock(trans, &h->lock);
if (ret)
h = ERR_PTR(ret);
goto found;
}
- h = ec_new_stripe_head_alloc(c, target, algo, redundancy, reserve);
+ h = ec_new_stripe_head_alloc(c, target, algo, redundancy, watermark);
found:
mutex_unlock(&c->ec_stripe_head_lock);
return h;
}
static int new_stripe_alloc_buckets(struct btree_trans *trans, struct ec_stripe_head *h,
- enum alloc_reserve reserve, struct closure *cl)
+ enum bch_watermark watermark, struct closure *cl)
{
struct bch_fs *c = trans->c;
struct bch_devs_mask devs = h->devs;
&nr_have_parity,
&have_cache, 0,
BCH_DATA_parity,
- reserve,
+ watermark,
cl);
open_bucket_for_each(c, &buckets, ob, i) {
&nr_have_data,
&have_cache, 0,
BCH_DATA_user,
- reserve,
+ watermark,
cl);
open_bucket_for_each(c, &buckets, ob, i) {
unsigned target,
unsigned algo,
unsigned redundancy,
- enum alloc_reserve reserve,
+ enum bch_watermark watermark,
struct closure *cl)
{
struct bch_fs *c = trans->c;
bool waiting = false;
int ret;
- h = __bch2_ec_stripe_head_get(trans, target, algo, redundancy, reserve);
+ h = __bch2_ec_stripe_head_get(trans, target, algo, redundancy, watermark);
if (!h)
bch_err(c, "no stripe head");
if (IS_ERR_OR_NULL(h))
goto alloc_existing;
/* First, try to allocate a full stripe: */
- ret = new_stripe_alloc_buckets(trans, h, RESERVE_stripe, NULL) ?:
+ ret = new_stripe_alloc_buckets(trans, h, BCH_WATERMARK_stripe, NULL) ?:
__bch2_ec_stripe_head_reserve(trans, h);
if (!ret)
goto allocate_buf;
if (waiting || !cl || ret != -BCH_ERR_stripe_alloc_blocked)
goto err;
- if (reserve == RESERVE_movinggc) {
- ret = new_stripe_alloc_buckets(trans, h, reserve, NULL) ?:
+ if (watermark == BCH_WATERMARK_copygc) {
+ ret = new_stripe_alloc_buckets(trans, h, watermark, NULL) ?:
__bch2_ec_stripe_head_reserve(trans, h);
if (ret)
goto err;
closure_wake_up(&c->freelist_wait);
alloc_existing:
/*
- * Retry allocating buckets, with the reserve watermark for this
+ * Retry allocating buckets, with the watermark for this
* particular write:
*/
- ret = new_stripe_alloc_buckets(trans, h, reserve, cl);
+ ret = new_stripe_alloc_buckets(trans, h, watermark, cl);
if (ret)
goto err;
list_for_each_entry(h, &c->ec_stripe_head_list, list) {
prt_printf(out, "target %u algo %u redundancy %u %s:\n",
h->target, h->algo, h->redundancy,
- bch2_alloc_reserves[h->reserve]);
+ bch2_watermarks[h->watermark]);
if (h->s)
prt_printf(out, "\tidx %llu blocks %u+%u allocated %u\n",
s->idx, s->nr_data, s->nr_parity,
atomic_read(&s->ref[STRIPE_REF_io]),
atomic_read(&s->ref[STRIPE_REF_stripe]),
- bch2_alloc_reserves[s->h->reserve]);
+ bch2_watermarks[s->h->watermark]);
}
mutex_unlock(&c->ec_stripe_new_lock);
}
unsigned target;
unsigned algo;
unsigned redundancy;
- enum alloc_reserve reserve;
+ enum bch_watermark watermark;
struct bch_devs_mask devs;
unsigned nr_active_devs;
void bch2_ec_stripe_head_put(struct bch_fs *, struct ec_stripe_head *);
struct ec_stripe_head *bch2_ec_stripe_head_get(struct btree_trans *,
unsigned, unsigned, unsigned,
- enum alloc_reserve, struct closure *);
+ enum bch_watermark, struct closure *);
void bch2_stripes_heap_update(struct bch_fs *, struct stripe *, size_t);
void bch2_stripes_heap_del(struct bch_fs *, struct stripe *, size_t);
&devs_have,
opts.data_replicas,
opts.data_replicas,
- RESERVE_none, 0, &cl, &wp);
+ BCH_WATERMARK_normal, 0, &cl, &wp);
if (ret) {
bch2_trans_unlock(trans);
closure_sync(&cl);
&op->devs_have,
op->nr_replicas,
op->nr_replicas_required,
- op->alloc_reserve,
+ op->watermark,
op->flags,
(op->flags & (BCH_WRITE_ALLOC_NOWAIT|
BCH_WRITE_ONLY_SPECIFIED_DEVS))
static inline struct workqueue_struct *index_update_wq(struct bch_write_op *op)
{
- return op->alloc_reserve == RESERVE_movinggc
+ return op->watermark == BCH_WATERMARK_copygc
? op->c->copygc_wq
: op->c->btree_update_wq;
}
op->compression_type = bch2_compression_opt_to_type[opts.compression];
op->nr_replicas = 0;
op->nr_replicas_required = c->opts.data_replicas_required;
- op->alloc_reserve = RESERVE_none;
+ op->watermark = BCH_WATERMARK_normal;
op->incompressible = 0;
op->open_buckets.nr = 0;
op->devs_have.nr = 0;
unsigned compression_type:4;
unsigned nr_replicas:4;
unsigned nr_replicas_required:4;
- unsigned alloc_reserve:3;
+ unsigned watermark:3;
unsigned incompressible:1;
unsigned stripe_waited:1;
break;
}
} else {
- ob[nr_got] = bch2_bucket_alloc(c, ca, RESERVE_none, cl);
+ ob[nr_got] = bch2_bucket_alloc(c, ca, BCH_WATERMARK_normal, cl);
ret = PTR_ERR_OR_ZERO(ob[nr_got]);
if (ret)
break;
for_each_rw_member(ca, c, dev_idx) {
struct bch_dev_usage usage = bch2_dev_usage_read(ca);
- fragmented_allowed = ((__dev_buckets_available(ca, usage, RESERVE_stripe) *
+ fragmented_allowed = ((__dev_buckets_available(ca, usage, BCH_WATERMARK_stripe) *
ca->mi.bucket_size) >> 1);
fragmented = 0;
prt_printf(out, "reserves:");
prt_newline(out);
- for (i = 0; i < RESERVE_NR; i++) {
- prt_str(out, bch2_alloc_reserves[i]);
+ for (i = 0; i < BCH_WATERMARK_NR; i++) {
+ prt_str(out, bch2_watermarks[i]);
prt_tab(out);
prt_u64(out, bch2_dev_buckets_reserved(ca, i));
prt_tab_rjust(out);
projects / linux.git / commitdiff