struct closure cl;
struct bio *bio;
+ trace_bcache_btree_read(b);
+
closure_init_stack(&cl);
- pr_debug("%s", pbtree(b));
bio = bch_bbio_alloc(b->c);
bio->bi_rw = REQ_META|READ_SYNC;
bch_bio_map(bio, b->sets[0].data);
- trace_bcache_btree_read(bio);
bch_submit_bbio(bio, b->c, &b->key, 0);
closure_sync(&cl);
memcpy(page_address(bv->bv_page),
base + j * PAGE_SIZE, PAGE_SIZE);
- trace_bcache_btree_write(b->bio);
bch_submit_bbio(b->bio, b->c, &k.key, 0);
continue_at(cl, btree_node_write_done, NULL);
b->bio->bi_vcnt = 0;
bch_bio_map(b->bio, i);
- trace_bcache_btree_write(b->bio);
bch_submit_bbio(b->bio, b->c, &k.key, 0);
closure_sync(cl);
{
struct bset *i = b->sets[b->nsets].data;
+ trace_bcache_btree_write(b);
+
BUG_ON(current->bio_list);
BUG_ON(b->written >= btree_blocks(b));
BUG_ON(b->written && !i->keys);
BUG_ON(b->sets->data->seq != i->seq);
+ bch_check_key_order(b, i);
cancel_delayed_work(&b->work);
clear_bit(BTREE_NODE_dirty, &b->flags);
change_bit(BTREE_NODE_write_idx, &b->flags);
- bch_check_key_order(b, i);
-
do_btree_node_write(b);
- pr_debug("%s block %i keys %i", pbtree(b), b->written, i->keys);
-
b->written += set_blocks(i, b->c);
atomic_long_add(set_blocks(i, b->c) * b->c->sb.block_size,
&PTR_CACHE(b->c, &b->key, 0)->btree_sectors_written);
int ret = -ENOMEM;
struct btree *i;
+ trace_bcache_btree_cache_cannibalize(c);
+
if (!cl)
return ERR_PTR(-ENOMEM);
return ERR_PTR(-EAGAIN);
}
- /* XXX: tracepoint */
c->try_harder = cl;
c->try_harder_start = local_clock();
retry:
{
unsigned i;
+ trace_bcache_btree_node_free(b);
+
/*
* The BUG_ON() in btree_node_get() implies that we must have a write
* lock on parent to free or even invalidate a node
*/
BUG_ON(op->lock <= b->level);
BUG_ON(b == b->c->root);
- pr_debug("bucket %s", pbtree(b));
if (btree_node_dirty(b))
btree_complete_write(b, btree_current_write(b));
bch_bset_init_next(b);
mutex_unlock(&c->bucket_lock);
+
+ trace_bcache_btree_node_alloc(b);
return b;
err_free:
bch_bucket_free(c, &k.key);
__bkey_put(c, &k.key);
err:
mutex_unlock(&c->bucket_lock);
+
+ trace_bcache_btree_node_alloc_fail(b);
return b;
}
btree_node_free(r->b, op);
up_write(&r->b->lock);
- pr_debug("coalesced %u nodes", nodes);
+ trace_bcache_btree_gc_coalesce(nodes);
gc->nodes--;
nodes--;
struct btree_op op;
uint64_t start_time = local_clock();
- trace_bcache_gc_start(c->sb.set_uuid);
- blktrace_msg_all(c, "Starting gc");
+ trace_bcache_gc_start(c);
memset(&stats, 0, sizeof(struct gc_stat));
closure_init_stack(&writes);
closure_sync(&writes);
if (ret) {
- blktrace_msg_all(c, "Stopped gc");
pr_warn("gc failed!");
-
continue_at(cl, bch_btree_gc, bch_gc_wq);
}
stats.in_use = (c->nbuckets - available) * 100 / c->nbuckets;
memcpy(&c->gc_stats, &stats, sizeof(struct gc_stat));
- blktrace_msg_all(c, "Finished gc");
- trace_bcache_gc_end(c->sb.set_uuid);
+ trace_bcache_gc_end(c);
continue_at(cl, bch_moving_gc, bch_gc_wq);
}
split = set_blocks(n1->sets[0].data, n1->c) > (btree_blocks(b) * 4) / 5;
- pr_debug("%ssplitting at %s keys %i", split ? "" : "not ",
- pbtree(b), n1->sets[0].data->keys);
-
if (split) {
unsigned keys = 0;
+ trace_bcache_btree_node_split(b, n1->sets[0].data->keys);
+
n2 = bch_btree_node_alloc(b->c, b->level, &op->cl);
if (IS_ERR(n2))
goto err_free1;
bch_keylist_add(&op->keys, &n2->key);
bch_btree_node_write(n2, &op->cl);
rw_unlock(true, n2);
- } else
+ } else {
+ trace_bcache_btree_node_compact(b, n1->sets[0].data->keys);
+
bch_btree_insert_keys(n1, op);
+ }
bch_keylist_add(&op->keys, &n1->key);
bch_btree_node_write(n1, &op->cl);
{
unsigned i;
+ trace_bcache_btree_set_root(b);
+
BUG_ON(!b->written);
for (i = 0; i < KEY_PTRS(&b->key); i++)
__bkey_put(b->c, &b->key);
bch_journal_meta(b->c, NULL);
- pr_debug("%s for %pf", pbtree(b), __builtin_return_address(0));
}
/* Cache lookup */
n->bi_end_io = bch_cache_read_endio;
n->bi_private = &s->cl;
- trace_bcache_cache_hit(n);
__bch_submit_bbio(n, b->c);
}
if (KEY_CSUM(k))
bio_csum(n, k);
- pr_debug("%s", pkey(k));
+ trace_bcache_cache_insert(k);
bch_keylist_push(&op->keys);
- trace_bcache_cache_insert(n, n->bi_sector, n->bi_bdev);
n->bi_rw |= REQ_WRITE;
bch_submit_bbio(n, op->c, k, 0);
} while (n != bio);
int i;
if (s->recoverable) {
- /* The cache read failed, but we can retry from the backing
- * device.
- */
- pr_debug("recovering at sector %llu",
- (uint64_t) s->orig_bio->bi_sector);
+ /* Retry from the backing device: */
+ trace_bcache_read_retry(s->orig_bio);
s->error = 0;
bv = s->bio.bio.bi_io_vec;
/* XXX: invalidate cache */
- trace_bcache_read_retry(&s->bio.bio);
closure_bio_submit(&s->bio.bio, &s->cl, s->d);
}
struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
bch_mark_cache_accounting(s, !s->cache_miss, s->op.skip);
+ trace_bcache_read(s->orig_bio, !s->cache_miss, s->op.skip);
if (s->error)
continue_at_nobarrier(cl, request_read_error, bcache_wq);
s->cache_miss = miss;
bio_get(s->op.cache_bio);
- trace_bcache_cache_miss(s->orig_bio);
closure_bio_submit(s->op.cache_bio, &s->cl, s->d);
return ret;
if (should_writeback(dc, s->orig_bio))
s->writeback = true;
+ trace_bcache_write(s->orig_bio, s->writeback, s->op.skip);
+
if (!s->writeback) {
s->op.cache_bio = bio_clone_bioset(bio, GFP_NOIO,
dc->disk.bio_split);
- trace_bcache_writethrough(s->orig_bio);
closure_bio_submit(bio, cl, s->d);
} else {
s->op.cache_bio = bio;
- trace_bcache_writeback(s->orig_bio);
bch_writeback_add(dc, bio_sectors(bio));
}
out:
s->op.skip = true;
s->op.cache_bio = s->orig_bio;
bio_get(s->op.cache_bio);
- trace_bcache_write_skip(s->orig_bio);
if ((bio->bi_rw & REQ_DISCARD) &&
!blk_queue_discard(bdev_get_queue(dc->bdev)))
/* Cached devices - read & write stuff */
-int bch_get_congested(struct cache_set *c)
+unsigned bch_get_congested(struct cache_set *c)
{
int i;
+ long rand;
if (!c->congested_read_threshold_us &&
!c->congested_write_threshold_us)
i += CONGESTED_MAX;
- return i <= 0 ? 1 : fract_exp_two(i, 6);
+ if (i > 0)
+ i = fract_exp_two(i, 6);
+
+ rand = get_random_int();
+ i -= bitmap_weight(&rand, BITS_PER_LONG);
+
+ return i > 0 ? i : 1;
}
static void add_sequential(struct task_struct *t)
{
struct cache_set *c = s->op.c;
struct bio *bio = &s->bio.bio;
-
- long rand;
- int cutoff = bch_get_congested(c);
unsigned mode = cache_mode(dc, bio);
+ unsigned sectors, congested = bch_get_congested(c);
if (atomic_read(&dc->disk.detaching) ||
c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
goto skip;
}
- if (!cutoff) {
- cutoff = dc->sequential_cutoff >> 9;
+ if (!congested && !dc->sequential_cutoff)
+ goto rescale;
- if (!cutoff)
- goto rescale;
-
- if (mode == CACHE_MODE_WRITEBACK &&
- (bio->bi_rw & REQ_WRITE) &&
- (bio->bi_rw & REQ_SYNC))
- goto rescale;
- }
+ if (!congested &&
+ mode == CACHE_MODE_WRITEBACK &&
+ (bio->bi_rw & REQ_WRITE) &&
+ (bio->bi_rw & REQ_SYNC))
+ goto rescale;
if (dc->sequential_merge) {
struct io *i;
add_sequential(s->task);
}
- rand = get_random_int();
- cutoff -= bitmap_weight(&rand, BITS_PER_LONG);
+ sectors = max(s->task->sequential_io,
+ s->task->sequential_io_avg) >> 9;
- if (cutoff <= (int) (max(s->task->sequential_io,
- s->task->sequential_io_avg) >> 9))
+ if (dc->sequential_cutoff &&
+ sectors >= dc->sequential_cutoff >> 9) {
+ trace_bcache_bypass_sequential(s->orig_bio);
goto skip;
+ }
+
+ if (congested && sectors >= congested) {
+ trace_bcache_bypass_congested(s->orig_bio);
+ goto skip;
+ }
rescale:
bch_rescale_priorities(c, bio_sectors(bio));
struct search;
DECLARE_EVENT_CLASS(bcache_request,
-
TP_PROTO(struct search *s, struct bio *bio),
-
TP_ARGS(s, bio),
TP_STRUCT__entry(
__field(dev_t, orig_sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
- __array(char, comm, TASK_COMM_LEN )
),
TP_fast_assign(
__entry->orig_sector = bio->bi_sector - 16;
__entry->nr_sector = bio->bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
- TP_printk("%d,%d %s %llu + %u [%s] (from %d,%d @ %llu)",
+ TP_printk("%d,%d %s %llu + %u (from %d,%d @ %llu)",
MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm,
- __entry->orig_major, __entry->orig_minor,
+ __entry->rwbs, (unsigned long long)__entry->sector,
+ __entry->nr_sector, __entry->orig_major, __entry->orig_minor,
(unsigned long long)__entry->orig_sector)
);
-DEFINE_EVENT(bcache_request, bcache_request_start,
+DECLARE_EVENT_CLASS(bkey,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k),
- TP_PROTO(struct search *s, struct bio *bio),
+ TP_STRUCT__entry(
+ __field(u32, size )
+ __field(u32, inode )
+ __field(u64, offset )
+ __field(bool, dirty )
+ ),
- TP_ARGS(s, bio)
+ TP_fast_assign(
+ __entry->inode = KEY_INODE(k);
+ __entry->offset = KEY_OFFSET(k);
+ __entry->size = KEY_SIZE(k);
+ __entry->dirty = KEY_DIRTY(k);
+ ),
+
+ TP_printk("%u:%llu len %u dirty %u", __entry->inode,
+ __entry->offset, __entry->size, __entry->dirty)
);
-DEFINE_EVENT(bcache_request, bcache_request_end,
+DECLARE_EVENT_CLASS(btree_node,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b),
+
+ TP_STRUCT__entry(
+ __field(size_t, bucket )
+ ),
+
+ TP_fast_assign(
+ __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
+ ),
+ TP_printk("bucket %zu", __entry->bucket)
+);
+
+/* request.c */
+
+DEFINE_EVENT(bcache_request, bcache_request_start,
TP_PROTO(struct search *s, struct bio *bio),
+ TP_ARGS(s, bio)
+);
+DEFINE_EVENT(bcache_request, bcache_request_end,
+ TP_PROTO(struct search *s, struct bio *bio),
TP_ARGS(s, bio)
);
DECLARE_EVENT_CLASS(bcache_bio,
-
TP_PROTO(struct bio *bio),
-
TP_ARGS(bio),
TP_STRUCT__entry(
__field(sector_t, sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
- __array(char, comm, TASK_COMM_LEN )
),
TP_fast_assign(
__entry->sector = bio->bi_sector;
__entry->nr_sector = bio->bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
- TP_printk("%d,%d %s %llu + %u [%s]",
- MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm)
+ TP_printk("%d,%d %s %llu + %u",
+ MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
+ (unsigned long long)__entry->sector, __entry->nr_sector)
);
-
-DEFINE_EVENT(bcache_bio, bcache_passthrough,
-
+DEFINE_EVENT(bcache_bio, bcache_bypass_sequential,
TP_PROTO(struct bio *bio),
-
TP_ARGS(bio)
);
-DEFINE_EVENT(bcache_bio, bcache_cache_hit,
-
+DEFINE_EVENT(bcache_bio, bcache_bypass_congested,
TP_PROTO(struct bio *bio),
-
TP_ARGS(bio)
);
-DEFINE_EVENT(bcache_bio, bcache_cache_miss,
+TRACE_EVENT(bcache_read,
+ TP_PROTO(struct bio *bio, bool hit, bool bypass),
+ TP_ARGS(bio, hit, bypass),
- TP_PROTO(struct bio *bio),
+ TP_STRUCT__entry(
+ __field(dev_t, dev )
+ __field(sector_t, sector )
+ __field(unsigned int, nr_sector )
+ __array(char, rwbs, 6 )
+ __field(bool, cache_hit )
+ __field(bool, bypass )
+ ),
- TP_ARGS(bio)
+ TP_fast_assign(
+ __entry->dev = bio->bi_bdev->bd_dev;
+ __entry->sector = bio->bi_sector;
+ __entry->nr_sector = bio->bi_size >> 9;
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ __entry->cache_hit = hit;
+ __entry->bypass = bypass;
+ ),
+
+ TP_printk("%d,%d %s %llu + %u hit %u bypass %u",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->rwbs, (unsigned long long)__entry->sector,
+ __entry->nr_sector, __entry->cache_hit, __entry->bypass)
);
-DEFINE_EVENT(bcache_bio, bcache_read_retry,
+TRACE_EVENT(bcache_write,
+ TP_PROTO(struct bio *bio, bool writeback, bool bypass),
+ TP_ARGS(bio, writeback, bypass),
- TP_PROTO(struct bio *bio),
+ TP_STRUCT__entry(
+ __field(dev_t, dev )
+ __field(sector_t, sector )
+ __field(unsigned int, nr_sector )
+ __array(char, rwbs, 6 )
+ __field(bool, writeback )
+ __field(bool, bypass )
+ ),
- TP_ARGS(bio)
-);
+ TP_fast_assign(
+ __entry->dev = bio->bi_bdev->bd_dev;
+ __entry->sector = bio->bi_sector;
+ __entry->nr_sector = bio->bi_size >> 9;
+ blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
+ __entry->writeback = writeback;
+ __entry->bypass = bypass;
+ ),
-DEFINE_EVENT(bcache_bio, bcache_writethrough,
+ TP_printk("%d,%d %s %llu + %u hit %u bypass %u",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->rwbs, (unsigned long long)__entry->sector,
+ __entry->nr_sector, __entry->writeback, __entry->bypass)
+);
+DEFINE_EVENT(bcache_bio, bcache_read_retry,
TP_PROTO(struct bio *bio),
-
TP_ARGS(bio)
);
-DEFINE_EVENT(bcache_bio, bcache_writeback,
+DEFINE_EVENT(bkey, bcache_cache_insert,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k)
+);
- TP_PROTO(struct bio *bio),
+/* Journal */
- TP_ARGS(bio)
-);
+DECLARE_EVENT_CLASS(cache_set,
+ TP_PROTO(struct cache_set *c),
+ TP_ARGS(c),
-DEFINE_EVENT(bcache_bio, bcache_write_skip,
+ TP_STRUCT__entry(
+ __array(char, uuid, 16 )
+ ),
- TP_PROTO(struct bio *bio),
+ TP_fast_assign(
+ memcpy(__entry->uuid, c->sb.set_uuid, 16);
+ ),
- TP_ARGS(bio)
+ TP_printk("%pU", __entry->uuid)
);
-DEFINE_EVENT(bcache_bio, bcache_btree_read,
-
- TP_PROTO(struct bio *bio),
+DEFINE_EVENT(bkey, bcache_journal_replay_key,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k)
+);
- TP_ARGS(bio)
+DEFINE_EVENT(cache_set, bcache_journal_full,
+ TP_PROTO(struct cache_set *c),
+ TP_ARGS(c)
);
-DEFINE_EVENT(bcache_bio, bcache_btree_write,
+DEFINE_EVENT(cache_set, bcache_journal_entry_full,
+ TP_PROTO(struct cache_set *c),
+ TP_ARGS(c)
+);
+DEFINE_EVENT(bcache_bio, bcache_journal_write,
TP_PROTO(struct bio *bio),
-
TP_ARGS(bio)
);
-DEFINE_EVENT(bcache_bio, bcache_write_dirty,
+/* Btree */
- TP_PROTO(struct bio *bio),
+DEFINE_EVENT(cache_set, bcache_btree_cache_cannibalize,
+ TP_PROTO(struct cache_set *c),
+ TP_ARGS(c)
+);
- TP_ARGS(bio)
+DEFINE_EVENT(btree_node, bcache_btree_read,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b)
);
-DEFINE_EVENT(bcache_bio, bcache_read_dirty,
+TRACE_EVENT(bcache_btree_write,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b),
- TP_PROTO(struct bio *bio),
+ TP_STRUCT__entry(
+ __field(size_t, bucket )
+ __field(unsigned, block )
+ __field(unsigned, keys )
+ ),
- TP_ARGS(bio)
+ TP_fast_assign(
+ __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
+ __entry->block = b->written;
+ __entry->keys = b->sets[b->nsets].data->keys;
+ ),
+
+ TP_printk("bucket %zu", __entry->bucket)
);
-DEFINE_EVENT(bcache_bio, bcache_write_moving,
+DEFINE_EVENT(btree_node, bcache_btree_node_alloc,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b)
+);
- TP_PROTO(struct bio *bio),
+DEFINE_EVENT(btree_node, bcache_btree_node_alloc_fail,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b)
+);
- TP_ARGS(bio)
+DEFINE_EVENT(btree_node, bcache_btree_node_free,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b)
);
-DEFINE_EVENT(bcache_bio, bcache_read_moving,
+TRACE_EVENT(bcache_btree_gc_coalesce,
+ TP_PROTO(unsigned nodes),
+ TP_ARGS(nodes),
- TP_PROTO(struct bio *bio),
+ TP_STRUCT__entry(
+ __field(unsigned, nodes )
+ ),
- TP_ARGS(bio)
-);
+ TP_fast_assign(
+ __entry->nodes = nodes;
+ ),
-DEFINE_EVENT(bcache_bio, bcache_journal_write,
+ TP_printk("coalesced %u nodes", __entry->nodes)
+);
- TP_PROTO(struct bio *bio),
+DEFINE_EVENT(cache_set, bcache_gc_start,
+ TP_PROTO(struct cache_set *c),
+ TP_ARGS(c)
+);
- TP_ARGS(bio)
+DEFINE_EVENT(cache_set, bcache_gc_end,
+ TP_PROTO(struct cache_set *c),
+ TP_ARGS(c)
);
-DECLARE_EVENT_CLASS(bcache_cache_bio,
+DEFINE_EVENT(bkey, bcache_gc_copy,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k)
+);
- TP_PROTO(struct bio *bio,
- sector_t orig_sector,
- struct block_device* orig_bdev),
+DEFINE_EVENT(bkey, bcache_gc_copy_collision,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k)
+);
- TP_ARGS(bio, orig_sector, orig_bdev),
+DECLARE_EVENT_CLASS(btree_split,
+ TP_PROTO(struct btree *b, unsigned keys),
+ TP_ARGS(b, keys),
TP_STRUCT__entry(
- __field(dev_t, dev )
- __field(dev_t, orig_dev )
- __field(sector_t, sector )
- __field(sector_t, orig_sector )
- __field(unsigned int, nr_sector )
- __array(char, rwbs, 6 )
- __array(char, comm, TASK_COMM_LEN )
+ __field(size_t, bucket )
+ __field(unsigned, keys )
),
TP_fast_assign(
- __entry->dev = bio->bi_bdev->bd_dev;
- __entry->orig_dev = orig_bdev->bd_dev;
- __entry->sector = bio->bi_sector;
- __entry->orig_sector = orig_sector;
- __entry->nr_sector = bio->bi_size >> 9;
- blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
- memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
+ __entry->bucket = PTR_BUCKET_NR(b->c, &b->key, 0);
+ __entry->keys = keys;
),
- TP_printk("%d,%d %s %llu + %u [%s] (from %d,%d %llu)",
- MAJOR(__entry->dev), MINOR(__entry->dev),
- __entry->rwbs,
- (unsigned long long)__entry->sector,
- __entry->nr_sector, __entry->comm,
- MAJOR(__entry->orig_dev), MINOR(__entry->orig_dev),
- (unsigned long long)__entry->orig_sector)
+ TP_printk("bucket %zu keys %u", __entry->bucket, __entry->keys)
);
-DEFINE_EVENT(bcache_cache_bio, bcache_cache_insert,
-
- TP_PROTO(struct bio *bio,
- sector_t orig_sector,
- struct block_device *orig_bdev),
+DEFINE_EVENT(btree_split, bcache_btree_node_split,
+ TP_PROTO(struct btree *b, unsigned keys),
+ TP_ARGS(b, keys)
+);
- TP_ARGS(bio, orig_sector, orig_bdev)
+DEFINE_EVENT(btree_split, bcache_btree_node_compact,
+ TP_PROTO(struct btree *b, unsigned keys),
+ TP_ARGS(b, keys)
);
-DECLARE_EVENT_CLASS(bcache_gc,
+DEFINE_EVENT(btree_node, bcache_btree_set_root,
+ TP_PROTO(struct btree *b),
+ TP_ARGS(b)
+);
- TP_PROTO(uint8_t *uuid),
+/* Allocator */
- TP_ARGS(uuid),
+TRACE_EVENT(bcache_alloc_invalidate,
+ TP_PROTO(struct cache *ca),
+ TP_ARGS(ca),
TP_STRUCT__entry(
- __field(uint8_t *, uuid)
+ __field(unsigned, free )
+ __field(unsigned, free_inc )
+ __field(unsigned, free_inc_size )
+ __field(unsigned, unused )
),
TP_fast_assign(
- __entry->uuid = uuid;
+ __entry->free = fifo_used(&ca->free);
+ __entry->free_inc = fifo_used(&ca->free_inc);
+ __entry->free_inc_size = ca->free_inc.size;
+ __entry->unused = fifo_used(&ca->unused);
),
- TP_printk("%pU", __entry->uuid)
+ TP_printk("free %u free_inc %u/%u unused %u", __entry->free,
+ __entry->free_inc, __entry->free_inc_size, __entry->unused)
);
+TRACE_EVENT(bcache_alloc_fail,
+ TP_PROTO(struct cache *ca),
+ TP_ARGS(ca),
-DEFINE_EVENT(bcache_gc, bcache_gc_start,
+ TP_STRUCT__entry(
+ __field(unsigned, free )
+ __field(unsigned, free_inc )
+ __field(unsigned, unused )
+ __field(unsigned, blocked )
+ ),
- TP_PROTO(uint8_t *uuid),
+ TP_fast_assign(
+ __entry->free = fifo_used(&ca->free);
+ __entry->free_inc = fifo_used(&ca->free_inc);
+ __entry->unused = fifo_used(&ca->unused);
+ __entry->blocked = atomic_read(&ca->set->prio_blocked);
+ ),
- TP_ARGS(uuid)
+ TP_printk("free %u free_inc %u unused %u blocked %u", __entry->free,
+ __entry->free_inc, __entry->unused, __entry->blocked)
);
-DEFINE_EVENT(bcache_gc, bcache_gc_end,
+/* Background writeback */
- TP_PROTO(uint8_t *uuid),
+DEFINE_EVENT(bkey, bcache_writeback,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k)
+);
- TP_ARGS(uuid)
+DEFINE_EVENT(bkey, bcache_writeback_collision,
+ TP_PROTO(struct bkey *k),
+ TP_ARGS(k)
);
#endif /* _TRACE_BCACHE_H */
projects / openwrt / staging / blogic.git / commitdiff