2017-03-17 06:18:50 +00:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
#undef TRACE_SYSTEM
|
|
|
|
#define TRACE_SYSTEM bcachefs
|
|
|
|
|
|
|
|
#if !defined(_TRACE_BCACHEFS_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
|
|
#define _TRACE_BCACHEFS_H
|
|
|
|
|
|
|
|
#include <linux/tracepoint.h>
|
|
|
|
|
2022-08-10 16:42:55 +00:00
|
|
|
#define TRACE_BPOS_entries(name) \
|
|
|
|
__field(u64, name##_inode ) \
|
|
|
|
__field(u64, name##_offset ) \
|
|
|
|
__field(u32, name##_snapshot )
|
|
|
|
|
|
|
|
#define TRACE_BPOS_assign(dst, src) \
|
|
|
|
__entry->dst##_inode = (src).inode; \
|
|
|
|
__entry->dst##_offset = (src).offset; \
|
|
|
|
__entry->dst##_snapshot = (src).snapshot
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
DECLARE_EVENT_CLASS(bpos,
|
2022-08-18 21:00:12 +00:00
|
|
|
TP_PROTO(const struct bpos *p),
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_ARGS(p),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_entries(p)
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_assign(p, *p);
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_printk("%llu:%llu:%u", __entry->p_inode, __entry->p_offset, __entry->p_snapshot)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DECLARE_EVENT_CLASS(fs_str,
|
2023-11-25 02:52:17 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str),
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2023-11-25 02:52:17 +00:00
|
|
|
__field(dev_t, dev )
|
|
|
|
__string(str, str )
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2023-11-25 02:52:17 +00:00
|
|
|
__entry->dev = c->dev;
|
|
|
|
__assign_str(str, str);
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2024-01-15 22:59:51 +00:00
|
|
|
TP_printk("%d,%d\n%s", MAJOR(__entry->dev), MINOR(__entry->dev), __get_str(str))
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DECLARE_EVENT_CLASS(trans_str,
|
|
|
|
TP_PROTO(struct btree_trans *trans, unsigned long caller_ip, const char *str),
|
|
|
|
TP_ARGS(trans, caller_ip, str),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__string(str, str )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = trans->c->dev;
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
__assign_str(str, str);
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d %s %pS %s",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->trans_fn, (void *) __entry->caller_ip, __get_str(str))
|
|
|
|
);
|
|
|
|
|
2024-01-04 23:59:17 +00:00
|
|
|
DECLARE_EVENT_CLASS(trans_str_nocaller,
|
|
|
|
TP_PROTO(struct btree_trans *trans, const char *str),
|
|
|
|
TP_ARGS(trans, str),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__string(str, str )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = trans->c->dev;
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
__assign_str(str, str);
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d %s %s",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->trans_fn, __get_str(str))
|
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DECLARE_EVENT_CLASS(btree_node_nofs,
|
2022-08-27 16:48:36 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, struct btree *b),
|
|
|
|
TP_ARGS(c, b),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(u8, level )
|
|
|
|
__field(u8, btree_id )
|
|
|
|
TRACE_BPOS_entries(pos)
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->level = b->c.level;
|
|
|
|
__entry->btree_id = b->c.btree_id;
|
|
|
|
TRACE_BPOS_assign(pos, b->key.k.p);
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d %u %s %llu:%llu:%u",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->level,
|
2023-10-20 02:49:08 +00:00
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
2022-08-27 16:48:36 +00:00
|
|
|
__entry->pos_inode, __entry->pos_offset, __entry->pos_snapshot)
|
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DECLARE_EVENT_CLASS(btree_node,
|
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(u8, level )
|
|
|
|
__field(u8, btree_id )
|
|
|
|
TRACE_BPOS_entries(pos)
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = trans->c->dev;
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
__entry->level = b->c.level;
|
|
|
|
__entry->btree_id = b->c.btree_id;
|
|
|
|
TRACE_BPOS_assign(pos, b->key.k.p);
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d %s %u %s %llu:%llu:%u",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->trans_fn,
|
|
|
|
__entry->level,
|
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
|
|
|
__entry->pos_inode, __entry->pos_offset, __entry->pos_snapshot)
|
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
DECLARE_EVENT_CLASS(bch_fs,
|
|
|
|
TP_PROTO(struct bch_fs *c),
|
|
|
|
TP_ARGS(c),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2021-05-27 23:15:44 +00:00
|
|
|
__field(dev_t, dev )
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2021-05-27 23:15:44 +00:00
|
|
|
__entry->dev = c->dev;
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2021-05-27 23:15:44 +00:00
|
|
|
TP_printk("%d,%d", MAJOR(__entry->dev), MINOR(__entry->dev))
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DECLARE_EVENT_CLASS(btree_trans,
|
|
|
|
TP_PROTO(struct btree_trans *trans),
|
|
|
|
TP_ARGS(trans),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = trans->c->dev;
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d %s", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->trans_fn)
|
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
DECLARE_EVENT_CLASS(bio,
|
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(sector_t, sector )
|
|
|
|
__field(unsigned int, nr_sector )
|
|
|
|
__array(char, rwbs, 6 )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = bio->bi_bdev ? bio_dev(bio) : 0;
|
|
|
|
__entry->sector = bio->bi_iter.bi_sector;
|
|
|
|
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
|
|
|
|
blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d %s %llu + %u",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
|
|
|
|
(unsigned long long)__entry->sector, __entry->nr_sector)
|
|
|
|
);
|
|
|
|
|
2022-04-03 19:13:20 +00:00
|
|
|
/* super-io.c: */
|
|
|
|
TRACE_EVENT(write_super,
|
|
|
|
TP_PROTO(struct bch_fs *c, unsigned long ip),
|
|
|
|
TP_ARGS(c, ip),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(unsigned long, ip )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->ip = ip;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d for %pS",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
(void *) __entry->ip)
|
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
/* io.c: */
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(bio, read_promote,
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio)
|
|
|
|
);
|
|
|
|
|
2023-09-12 00:44:33 +00:00
|
|
|
TRACE_EVENT(read_nopromote,
|
|
|
|
TP_PROTO(struct bch_fs *c, int ret),
|
|
|
|
TP_ARGS(c, ret),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__array(char, ret, 32 )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
strscpy(__entry->ret, bch2_err_str(ret), sizeof(__entry->ret));
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d,%d ret %s",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->ret)
|
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
DEFINE_EVENT(bio, read_bounce,
|
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio)
|
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(bio, read_split,
|
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio)
|
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
DEFINE_EVENT(bio, read_retry,
|
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio)
|
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(bio, read_reuse_race,
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio)
|
|
|
|
);
|
|
|
|
|
|
|
|
/* Journal */
|
|
|
|
|
|
|
|
DEFINE_EVENT(bch_fs, journal_full,
|
|
|
|
TP_PROTO(struct bch_fs *c),
|
|
|
|
TP_ARGS(c)
|
|
|
|
);
|
|
|
|
|
2024-01-15 22:59:51 +00:00
|
|
|
DEFINE_EVENT(fs_str, journal_entry_full,
|
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2024-01-15 22:59:51 +00:00
|
|
|
DEFINE_EVENT(fs_str, journal_entry_close,
|
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2023-11-17 01:41:10 +00:00
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
DEFINE_EVENT(bio, journal_write,
|
|
|
|
TP_PROTO(struct bio *bio),
|
|
|
|
TP_ARGS(bio)
|
|
|
|
);
|
|
|
|
|
2020-11-20 00:54:40 +00:00
|
|
|
TRACE_EVENT(journal_reclaim_start,
|
2022-04-17 22:06:31 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, bool direct, bool kicked,
|
|
|
|
u64 min_nr, u64 min_key_cache,
|
2020-11-20 00:54:40 +00:00
|
|
|
u64 btree_cache_dirty, u64 btree_cache_total,
|
|
|
|
u64 btree_key_cache_dirty, u64 btree_key_cache_total),
|
2023-11-05 02:54:26 +00:00
|
|
|
TP_ARGS(c, direct, kicked, min_nr, min_key_cache,
|
2020-11-20 00:54:40 +00:00
|
|
|
btree_cache_dirty, btree_cache_total,
|
|
|
|
btree_key_cache_dirty, btree_key_cache_total),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2021-05-27 23:15:44 +00:00
|
|
|
__field(dev_t, dev )
|
2022-04-17 22:06:31 +00:00
|
|
|
__field(bool, direct )
|
|
|
|
__field(bool, kicked )
|
2020-11-20 00:54:40 +00:00
|
|
|
__field(u64, min_nr )
|
2022-04-17 22:06:31 +00:00
|
|
|
__field(u64, min_key_cache )
|
2020-11-20 00:54:40 +00:00
|
|
|
__field(u64, btree_cache_dirty )
|
|
|
|
__field(u64, btree_cache_total )
|
|
|
|
__field(u64, btree_key_cache_dirty )
|
|
|
|
__field(u64, btree_key_cache_total )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2021-05-27 23:15:44 +00:00
|
|
|
__entry->dev = c->dev;
|
2022-04-17 22:06:31 +00:00
|
|
|
__entry->direct = direct;
|
|
|
|
__entry->kicked = kicked;
|
2020-11-20 00:54:40 +00:00
|
|
|
__entry->min_nr = min_nr;
|
2022-04-17 22:06:31 +00:00
|
|
|
__entry->min_key_cache = min_key_cache;
|
2020-11-20 00:54:40 +00:00
|
|
|
__entry->btree_cache_dirty = btree_cache_dirty;
|
|
|
|
__entry->btree_cache_total = btree_cache_total;
|
|
|
|
__entry->btree_key_cache_dirty = btree_key_cache_dirty;
|
|
|
|
__entry->btree_key_cache_total = btree_key_cache_total;
|
|
|
|
),
|
|
|
|
|
2023-11-05 02:54:26 +00:00
|
|
|
TP_printk("%d,%d direct %u kicked %u min %llu key cache %llu btree cache %llu/%llu key cache %llu/%llu",
|
2021-05-27 23:15:44 +00:00
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
2022-04-17 22:06:31 +00:00
|
|
|
__entry->direct,
|
|
|
|
__entry->kicked,
|
2020-11-20 00:54:40 +00:00
|
|
|
__entry->min_nr,
|
2022-04-17 22:06:31 +00:00
|
|
|
__entry->min_key_cache,
|
2020-11-20 00:54:40 +00:00
|
|
|
__entry->btree_cache_dirty,
|
|
|
|
__entry->btree_cache_total,
|
|
|
|
__entry->btree_key_cache_dirty,
|
|
|
|
__entry->btree_key_cache_total)
|
|
|
|
);
|
|
|
|
|
|
|
|
TRACE_EVENT(journal_reclaim_finish,
|
|
|
|
TP_PROTO(struct bch_fs *c, u64 nr_flushed),
|
|
|
|
TP_ARGS(c, nr_flushed),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2021-05-27 23:15:44 +00:00
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(u64, nr_flushed )
|
2020-11-20 00:54:40 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2021-05-27 23:15:44 +00:00
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->nr_flushed = nr_flushed;
|
2020-11-20 00:54:40 +00:00
|
|
|
),
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
TP_printk("%d,%d flushed %llu",
|
2021-05-27 23:15:44 +00:00
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->nr_flushed)
|
2020-11-20 00:54:40 +00:00
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
/* bset.c: */
|
|
|
|
|
|
|
|
DEFINE_EVENT(bpos, bkey_pack_pos_fail,
|
2022-08-18 21:00:12 +00:00
|
|
|
TP_PROTO(const struct bpos *p),
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_ARGS(p)
|
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
/* Btree cache: */
|
2017-03-17 06:18:50 +00:00
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
TRACE_EVENT(btree_cache_scan,
|
|
|
|
TP_PROTO(long nr_to_scan, long can_free, long ret),
|
|
|
|
TP_ARGS(nr_to_scan, can_free, ret),
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:48:36 +00:00
|
|
|
__field(long, nr_to_scan )
|
|
|
|
__field(long, can_free )
|
|
|
|
__field(long, ret )
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-08-27 16:48:36 +00:00
|
|
|
__entry->nr_to_scan = nr_to_scan;
|
|
|
|
__entry->can_free = can_free;
|
|
|
|
__entry->ret = ret;
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
TP_printk("scanned for %li nodes, can free %li, ret %li",
|
|
|
|
__entry->nr_to_scan, __entry->can_free, __entry->ret)
|
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DEFINE_EVENT(btree_node_nofs, btree_cache_reap,
|
2022-08-27 16:48:36 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, struct btree *b),
|
|
|
|
TP_ARGS(c, b)
|
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DEFINE_EVENT(btree_trans, btree_cache_cannibalize_lock_fail,
|
|
|
|
TP_PROTO(struct btree_trans *trans),
|
|
|
|
TP_ARGS(trans)
|
2022-08-27 16:48:36 +00:00
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DEFINE_EVENT(btree_trans, btree_cache_cannibalize_lock,
|
|
|
|
TP_PROTO(struct btree_trans *trans),
|
|
|
|
TP_ARGS(trans)
|
2022-08-27 16:48:36 +00:00
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DEFINE_EVENT(btree_trans, btree_cache_cannibalize,
|
|
|
|
TP_PROTO(struct btree_trans *trans),
|
|
|
|
TP_ARGS(trans)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2023-12-02 08:36:27 +00:00
|
|
|
DEFINE_EVENT(btree_trans, btree_cache_cannibalize_unlock,
|
|
|
|
TP_PROTO(struct btree_trans *trans),
|
|
|
|
TP_ARGS(trans)
|
2022-08-27 16:48:36 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
/* Btree */
|
|
|
|
|
|
|
|
DEFINE_EVENT(btree_node, btree_node_read,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
TRACE_EVENT(btree_node_write,
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_PROTO(struct btree *b, unsigned bytes, unsigned sectors),
|
|
|
|
TP_ARGS(b, bytes, sectors),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2018-11-01 19:10:01 +00:00
|
|
|
__field(enum btree_node_type, type)
|
2017-03-17 06:18:50 +00:00
|
|
|
__field(unsigned, bytes )
|
|
|
|
__field(unsigned, sectors )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->type = btree_node_type(b);
|
|
|
|
__entry->bytes = bytes;
|
|
|
|
__entry->sectors = sectors;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("bkey type %u bytes %u sectors %u",
|
|
|
|
__entry->type , __entry->bytes, __entry->sectors)
|
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(btree_node, btree_node_alloc,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(btree_node, btree_node_free,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
TRACE_EVENT(btree_reserve_get_fail,
|
2022-01-12 04:24:43 +00:00
|
|
|
TP_PROTO(const char *trans_fn,
|
|
|
|
unsigned long caller_ip,
|
2023-02-02 03:51:51 +00:00
|
|
|
size_t required,
|
|
|
|
int ret),
|
|
|
|
TP_ARGS(trans_fn, caller_ip, required, ret),
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2022-01-12 04:24:43 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
2017-03-17 06:18:50 +00:00
|
|
|
__field(size_t, required )
|
2023-02-02 03:51:51 +00:00
|
|
|
__array(char, ret, 32 )
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans_fn, sizeof(__entry->trans_fn));
|
2022-01-12 04:24:43 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
__entry->required = required;
|
2023-02-02 03:51:51 +00:00
|
|
|
strscpy(__entry->ret, bch2_err_str(ret), sizeof(__entry->ret));
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2023-02-02 03:51:51 +00:00
|
|
|
TP_printk("%s %pS required %zu ret %s",
|
2022-01-12 04:24:43 +00:00
|
|
|
__entry->trans_fn,
|
|
|
|
(void *) __entry->caller_ip,
|
2023-02-02 03:51:51 +00:00
|
|
|
__entry->required,
|
|
|
|
__entry->ret)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(btree_node, btree_node_compact,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(btree_node, btree_node_merge,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(btree_node, btree_node_split,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(btree_node, btree_node_rewrite,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2022-04-17 22:06:31 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(btree_node, btree_node_set_root,
|
2023-12-02 08:36:27 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, struct btree *b),
|
|
|
|
TP_ARGS(trans, b)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
TRACE_EVENT(btree_path_relock_fail,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path,
|
|
|
|
unsigned level),
|
|
|
|
TP_ARGS(trans, caller_ip, path, level),
|
2022-01-09 03:59:58 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2022-02-16 05:42:34 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
2022-01-09 03:59:58 +00:00
|
|
|
__field(u8, btree_id )
|
2022-09-17 18:36:24 +00:00
|
|
|
__field(u8, level )
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_entries(pos)
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, node, 24 )
|
2023-08-18 02:04:20 +00:00
|
|
|
__field(u8, self_read_count )
|
|
|
|
__field(u8, self_intent_count)
|
|
|
|
__field(u8, read_count )
|
|
|
|
__field(u8, intent_count )
|
2022-01-09 03:59:58 +00:00
|
|
|
__field(u32, iter_lock_seq )
|
|
|
|
__field(u32, node_lock_seq )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-08-27 16:11:18 +00:00
|
|
|
struct btree *b = btree_path_node(path, level);
|
2023-08-18 02:04:20 +00:00
|
|
|
struct six_lock_count c;
|
2022-08-27 16:11:18 +00:00
|
|
|
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2022-02-16 05:42:34 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
2022-08-10 16:42:55 +00:00
|
|
|
__entry->btree_id = path->btree_id;
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->level = path->level;
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_assign(pos, path->pos);
|
2023-08-18 02:04:20 +00:00
|
|
|
|
2024-01-16 01:40:06 +00:00
|
|
|
c = bch2_btree_node_lock_counts(trans, NULL, &path->l[level].b->c, level);
|
2023-08-18 02:04:20 +00:00
|
|
|
__entry->self_read_count = c.n[SIX_LOCK_read];
|
|
|
|
__entry->self_intent_count = c.n[SIX_LOCK_intent];
|
|
|
|
|
|
|
|
if (IS_ERR(b)) {
|
2022-08-27 16:11:18 +00:00
|
|
|
strscpy(__entry->node, bch2_err_str(PTR_ERR(b)), sizeof(__entry->node));
|
2023-08-18 02:04:20 +00:00
|
|
|
} else {
|
|
|
|
c = six_lock_counts(&path->l[level].b->c.lock);
|
|
|
|
__entry->read_count = c.n[SIX_LOCK_read];
|
|
|
|
__entry->intent_count = c.n[SIX_LOCK_intent];
|
2022-08-27 16:11:18 +00:00
|
|
|
scnprintf(__entry->node, sizeof(__entry->node), "%px", b);
|
2023-08-18 02:04:20 +00:00
|
|
|
}
|
2022-08-10 16:42:55 +00:00
|
|
|
__entry->iter_lock_seq = path->l[level].lock_seq;
|
2023-05-21 03:57:48 +00:00
|
|
|
__entry->node_lock_seq = is_btree_node(path, level)
|
|
|
|
? six_lock_seq(&path->l[level].b->c.lock)
|
|
|
|
: 0;
|
2022-01-09 03:59:58 +00:00
|
|
|
),
|
|
|
|
|
2023-08-18 02:04:20 +00:00
|
|
|
TP_printk("%s %pS btree %s pos %llu:%llu:%u level %u node %s held %u:%u lock count %u:%u iter seq %u lock seq %u",
|
2022-01-09 03:59:58 +00:00
|
|
|
__entry->trans_fn,
|
2022-02-16 05:42:34 +00:00
|
|
|
(void *) __entry->caller_ip,
|
2023-10-20 02:49:08 +00:00
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
2022-01-09 03:59:58 +00:00
|
|
|
__entry->pos_inode,
|
|
|
|
__entry->pos_offset,
|
|
|
|
__entry->pos_snapshot,
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->level,
|
2022-01-09 03:59:58 +00:00
|
|
|
__entry->node,
|
2023-08-18 02:04:20 +00:00
|
|
|
__entry->self_read_count,
|
|
|
|
__entry->self_intent_count,
|
|
|
|
__entry->read_count,
|
|
|
|
__entry->intent_count,
|
2022-01-09 03:59:58 +00:00
|
|
|
__entry->iter_lock_seq,
|
|
|
|
__entry->node_lock_seq)
|
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
TRACE_EVENT(btree_path_upgrade_fail,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-08-07 17:43:32 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path,
|
|
|
|
unsigned level),
|
|
|
|
TP_ARGS(trans, caller_ip, path, level),
|
2022-08-07 17:43:32 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2022-08-07 17:43:32 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__field(u8, btree_id )
|
2022-09-17 18:36:24 +00:00
|
|
|
__field(u8, level )
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_entries(pos)
|
2022-08-07 17:43:32 +00:00
|
|
|
__field(u8, locked )
|
|
|
|
__field(u8, self_read_count )
|
|
|
|
__field(u8, self_intent_count)
|
2022-08-10 16:42:55 +00:00
|
|
|
__field(u8, read_count )
|
2022-08-07 17:43:32 +00:00
|
|
|
__field(u8, intent_count )
|
2022-09-17 18:36:24 +00:00
|
|
|
__field(u32, iter_lock_seq )
|
|
|
|
__field(u32, node_lock_seq )
|
2022-08-07 17:43:32 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-08-10 16:42:55 +00:00
|
|
|
struct six_lock_count c;
|
|
|
|
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2022-08-07 17:43:32 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
2022-08-10 16:42:55 +00:00
|
|
|
__entry->btree_id = path->btree_id;
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->level = level;
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_assign(pos, path->pos);
|
|
|
|
__entry->locked = btree_node_locked(path, level);
|
|
|
|
|
2022-08-22 17:21:10 +00:00
|
|
|
c = bch2_btree_node_lock_counts(trans, NULL, &path->l[level].b->c, level),
|
2022-08-22 03:08:53 +00:00
|
|
|
__entry->self_read_count = c.n[SIX_LOCK_read];
|
|
|
|
__entry->self_intent_count = c.n[SIX_LOCK_intent];
|
2022-08-10 16:42:55 +00:00
|
|
|
c = six_lock_counts(&path->l[level].b->c.lock);
|
2022-08-22 03:08:53 +00:00
|
|
|
__entry->read_count = c.n[SIX_LOCK_read];
|
2023-08-18 02:04:20 +00:00
|
|
|
__entry->intent_count = c.n[SIX_LOCK_intent];
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->iter_lock_seq = path->l[level].lock_seq;
|
2023-05-21 03:57:48 +00:00
|
|
|
__entry->node_lock_seq = is_btree_node(path, level)
|
|
|
|
? six_lock_seq(&path->l[level].b->c.lock)
|
|
|
|
: 0;
|
2022-08-07 17:43:32 +00:00
|
|
|
),
|
|
|
|
|
2022-09-17 18:36:24 +00:00
|
|
|
TP_printk("%s %pS btree %s pos %llu:%llu:%u level %u locked %u held %u:%u lock count %u:%u iter seq %u lock seq %u",
|
2022-08-07 17:43:32 +00:00
|
|
|
__entry->trans_fn,
|
|
|
|
(void *) __entry->caller_ip,
|
2023-10-20 02:49:08 +00:00
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
2022-08-07 17:43:32 +00:00
|
|
|
__entry->pos_inode,
|
|
|
|
__entry->pos_offset,
|
|
|
|
__entry->pos_snapshot,
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->level,
|
2022-08-07 17:43:32 +00:00
|
|
|
__entry->locked,
|
|
|
|
__entry->self_read_count,
|
|
|
|
__entry->self_intent_count,
|
|
|
|
__entry->read_count,
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->intent_count,
|
|
|
|
__entry->iter_lock_seq,
|
|
|
|
__entry->node_lock_seq)
|
2022-08-07 17:43:32 +00:00
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
/* Garbage collection */
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(bch_fs, gc_gens_start,
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_PROTO(struct bch_fs *c),
|
|
|
|
TP_ARGS(c)
|
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(bch_fs, gc_gens_end,
|
2017-03-17 06:18:50 +00:00
|
|
|
TP_PROTO(struct bch_fs *c),
|
|
|
|
TP_ARGS(c)
|
|
|
|
);
|
|
|
|
|
|
|
|
/* Allocator */
|
|
|
|
|
|
|
|
DECLARE_EVENT_CLASS(bucket_alloc,
|
2022-01-10 01:48:31 +00:00
|
|
|
TP_PROTO(struct bch_dev *ca, const char *alloc_reserve,
|
2022-09-26 22:18:00 +00:00
|
|
|
u64 bucket,
|
2022-07-18 01:40:39 +00:00
|
|
|
u64 free,
|
2022-01-10 01:48:31 +00:00
|
|
|
u64 avail,
|
2022-07-18 01:40:39 +00:00
|
|
|
u64 copygc_wait_amount,
|
|
|
|
s64 copygc_waiting_for,
|
2022-11-04 20:06:55 +00:00
|
|
|
struct bucket_alloc_state *s,
|
2022-01-10 01:48:31 +00:00
|
|
|
bool nonblocking,
|
2022-07-18 02:31:21 +00:00
|
|
|
const char *err),
|
2023-02-25 07:22:49 +00:00
|
|
|
TP_ARGS(ca, alloc_reserve, bucket, free, avail,
|
2022-09-26 22:18:00 +00:00
|
|
|
copygc_wait_amount, copygc_waiting_for,
|
2022-11-04 20:06:55 +00:00
|
|
|
s, nonblocking, err),
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2023-02-25 00:06:32 +00:00
|
|
|
__field(u8, dev )
|
2022-01-10 01:48:31 +00:00
|
|
|
__array(char, reserve, 16 )
|
2022-09-26 22:18:00 +00:00
|
|
|
__field(u64, bucket )
|
2022-07-18 01:40:39 +00:00
|
|
|
__field(u64, free )
|
2022-01-10 01:48:31 +00:00
|
|
|
__field(u64, avail )
|
2022-07-18 01:40:39 +00:00
|
|
|
__field(u64, copygc_wait_amount )
|
|
|
|
__field(s64, copygc_waiting_for )
|
2022-01-10 01:48:31 +00:00
|
|
|
__field(u64, seen )
|
|
|
|
__field(u64, open )
|
|
|
|
__field(u64, need_journal_commit )
|
|
|
|
__field(u64, nouse )
|
|
|
|
__field(bool, nonblocking )
|
bcachefs: Nocow support
This adds support for nocow mode, where we do writes in-place when
possible. Patch components:
- New boolean filesystem and inode option, nocow: note that when nocow
is enabled, data checksumming and compression are implicitly disabled
- To prevent in-place writes from racing with data moves
(data_update.c) or bucket reuse (i.e. a bucket being reused and
re-allocated while a nocow write is in flight, we have a new locking
mechanism.
Buckets can be locked for either data update or data move, using a
fixed size hash table of two_state_shared locks. We don't have any
chaining, meaning updates and moves to different buckets that hash to
the same lock will wait unnecessarily - we'll want to watch for this
becoming an issue.
- The allocator path also needs to check for in-place writes in flight
to a given bucket before giving it out: thus we add another counter
to bucket_alloc_state so we can track this.
- Fsync now may need to issue cache flushes to block devices instead of
flushing the journal. We add a device bitmask to bch_inode_info,
ei_devs_need_flush, which tracks devices that need to have flushes
issued - note that this will lead to unnecessary flushes when other
codepaths have already issued flushes, we may want to replace this with
a sequence number.
- New nocow write path: look up extents, and if they're writable write
to them - otherwise fall back to the normal COW write path.
XXX: switch to sequence numbers instead of bitmask for devs needing
journal flush
XXX: ei_quota_lock being a mutex means bch2_nocow_write_done() needs to
run in process context - see if we can improve this
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2022-11-02 21:12:00 +00:00
|
|
|
__field(u64, nocow )
|
2022-09-26 22:18:00 +00:00
|
|
|
__array(char, err, 32 )
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2023-02-25 00:06:32 +00:00
|
|
|
__entry->dev = ca->dev_idx;
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->reserve, alloc_reserve, sizeof(__entry->reserve));
|
2022-09-26 22:18:00 +00:00
|
|
|
__entry->bucket = bucket;
|
2022-07-18 01:40:39 +00:00
|
|
|
__entry->free = free;
|
2022-01-10 01:48:31 +00:00
|
|
|
__entry->avail = avail;
|
2022-07-18 01:40:39 +00:00
|
|
|
__entry->copygc_wait_amount = copygc_wait_amount;
|
|
|
|
__entry->copygc_waiting_for = copygc_waiting_for;
|
2022-11-04 20:06:55 +00:00
|
|
|
__entry->seen = s->buckets_seen;
|
|
|
|
__entry->open = s->skipped_open;
|
|
|
|
__entry->need_journal_commit = s->skipped_need_journal_commit;
|
|
|
|
__entry->nouse = s->skipped_nouse;
|
2022-01-10 01:48:31 +00:00
|
|
|
__entry->nonblocking = nonblocking;
|
bcachefs: Nocow support
This adds support for nocow mode, where we do writes in-place when
possible. Patch components:
- New boolean filesystem and inode option, nocow: note that when nocow
is enabled, data checksumming and compression are implicitly disabled
- To prevent in-place writes from racing with data moves
(data_update.c) or bucket reuse (i.e. a bucket being reused and
re-allocated while a nocow write is in flight, we have a new locking
mechanism.
Buckets can be locked for either data update or data move, using a
fixed size hash table of two_state_shared locks. We don't have any
chaining, meaning updates and moves to different buckets that hash to
the same lock will wait unnecessarily - we'll want to watch for this
becoming an issue.
- The allocator path also needs to check for in-place writes in flight
to a given bucket before giving it out: thus we add another counter
to bucket_alloc_state so we can track this.
- Fsync now may need to issue cache flushes to block devices instead of
flushing the journal. We add a device bitmask to bch_inode_info,
ei_devs_need_flush, which tracks devices that need to have flushes
issued - note that this will lead to unnecessary flushes when other
codepaths have already issued flushes, we may want to replace this with
a sequence number.
- New nocow write path: look up extents, and if they're writable write
to them - otherwise fall back to the normal COW write path.
XXX: switch to sequence numbers instead of bitmask for devs needing
journal flush
XXX: ei_quota_lock being a mutex means bch2_nocow_write_done() needs to
run in process context - see if we can improve this
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2022-11-02 21:12:00 +00:00
|
|
|
__entry->nocow = s->skipped_nocow;
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->err, err, sizeof(__entry->err));
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2023-02-25 07:22:49 +00:00
|
|
|
TP_printk("reserve %s bucket %u:%llu free %llu avail %llu copygc_wait %llu/%lli seen %llu open %llu need_journal_commit %llu nouse %llu nocow %llu nonblocking %u err %s",
|
2022-01-10 01:48:31 +00:00
|
|
|
__entry->reserve,
|
2023-02-25 00:06:32 +00:00
|
|
|
__entry->dev,
|
2022-09-26 22:18:00 +00:00
|
|
|
__entry->bucket,
|
2022-07-18 01:40:39 +00:00
|
|
|
__entry->free,
|
2022-01-10 01:48:31 +00:00
|
|
|
__entry->avail,
|
2022-07-18 01:40:39 +00:00
|
|
|
__entry->copygc_wait_amount,
|
|
|
|
__entry->copygc_waiting_for,
|
2022-01-10 01:48:31 +00:00
|
|
|
__entry->seen,
|
|
|
|
__entry->open,
|
|
|
|
__entry->need_journal_commit,
|
|
|
|
__entry->nouse,
|
bcachefs: Nocow support
This adds support for nocow mode, where we do writes in-place when
possible. Patch components:
- New boolean filesystem and inode option, nocow: note that when nocow
is enabled, data checksumming and compression are implicitly disabled
- To prevent in-place writes from racing with data moves
(data_update.c) or bucket reuse (i.e. a bucket being reused and
re-allocated while a nocow write is in flight, we have a new locking
mechanism.
Buckets can be locked for either data update or data move, using a
fixed size hash table of two_state_shared locks. We don't have any
chaining, meaning updates and moves to different buckets that hash to
the same lock will wait unnecessarily - we'll want to watch for this
becoming an issue.
- The allocator path also needs to check for in-place writes in flight
to a given bucket before giving it out: thus we add another counter
to bucket_alloc_state so we can track this.
- Fsync now may need to issue cache flushes to block devices instead of
flushing the journal. We add a device bitmask to bch_inode_info,
ei_devs_need_flush, which tracks devices that need to have flushes
issued - note that this will lead to unnecessary flushes when other
codepaths have already issued flushes, we may want to replace this with
a sequence number.
- New nocow write path: look up extents, and if they're writable write
to them - otherwise fall back to the normal COW write path.
XXX: switch to sequence numbers instead of bitmask for devs needing
journal flush
XXX: ei_quota_lock being a mutex means bch2_nocow_write_done() needs to
run in process context - see if we can improve this
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2022-11-02 21:12:00 +00:00
|
|
|
__entry->nocow,
|
2022-01-10 01:48:31 +00:00
|
|
|
__entry->nonblocking,
|
2022-07-18 02:31:21 +00:00
|
|
|
__entry->err)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(bucket_alloc, bucket_alloc,
|
2022-01-10 01:48:31 +00:00
|
|
|
TP_PROTO(struct bch_dev *ca, const char *alloc_reserve,
|
2022-09-26 22:18:00 +00:00
|
|
|
u64 bucket,
|
2022-07-18 01:40:39 +00:00
|
|
|
u64 free,
|
2022-01-10 01:48:31 +00:00
|
|
|
u64 avail,
|
2022-07-18 01:40:39 +00:00
|
|
|
u64 copygc_wait_amount,
|
|
|
|
s64 copygc_waiting_for,
|
2022-11-04 20:06:55 +00:00
|
|
|
struct bucket_alloc_state *s,
|
2022-01-10 01:48:31 +00:00
|
|
|
bool nonblocking,
|
2022-07-18 02:31:21 +00:00
|
|
|
const char *err),
|
2023-02-25 07:22:49 +00:00
|
|
|
TP_ARGS(ca, alloc_reserve, bucket, free, avail,
|
2022-09-26 22:18:00 +00:00
|
|
|
copygc_wait_amount, copygc_waiting_for,
|
2022-11-04 20:06:55 +00:00
|
|
|
s, nonblocking, err)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(bucket_alloc, bucket_alloc_fail,
|
2022-01-10 01:48:31 +00:00
|
|
|
TP_PROTO(struct bch_dev *ca, const char *alloc_reserve,
|
2022-09-26 22:18:00 +00:00
|
|
|
u64 bucket,
|
2022-07-18 01:40:39 +00:00
|
|
|
u64 free,
|
2022-01-10 01:48:31 +00:00
|
|
|
u64 avail,
|
2022-07-18 01:40:39 +00:00
|
|
|
u64 copygc_wait_amount,
|
|
|
|
s64 copygc_waiting_for,
|
2022-11-04 20:06:55 +00:00
|
|
|
struct bucket_alloc_state *s,
|
2022-01-10 01:48:31 +00:00
|
|
|
bool nonblocking,
|
2022-07-18 02:31:21 +00:00
|
|
|
const char *err),
|
2023-02-25 07:22:49 +00:00
|
|
|
TP_ARGS(ca, alloc_reserve, bucket, free, avail,
|
2022-09-26 22:18:00 +00:00
|
|
|
copygc_wait_amount, copygc_waiting_for,
|
2022-11-04 20:06:55 +00:00
|
|
|
s, nonblocking, err)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
TRACE_EVENT(discard_buckets,
|
|
|
|
TP_PROTO(struct bch_fs *c, u64 seen, u64 open,
|
2022-07-18 02:31:21 +00:00
|
|
|
u64 need_journal_commit, u64 discarded, const char *err),
|
|
|
|
TP_ARGS(c, seen, open, need_journal_commit, discarded, err),
|
2022-04-17 22:06:31 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(u64, seen )
|
|
|
|
__field(u64, open )
|
|
|
|
__field(u64, need_journal_commit )
|
|
|
|
__field(u64, discarded )
|
2022-07-18 02:31:21 +00:00
|
|
|
__array(char, err, 16 )
|
2022-04-17 22:06:31 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->seen = seen;
|
|
|
|
__entry->open = open;
|
|
|
|
__entry->need_journal_commit = need_journal_commit;
|
|
|
|
__entry->discarded = discarded;
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->err, err, sizeof(__entry->err));
|
2022-04-17 22:06:31 +00:00
|
|
|
),
|
|
|
|
|
2022-07-18 02:31:21 +00:00
|
|
|
TP_printk("%d%d seen %llu open %llu need_journal_commit %llu discarded %llu err %s",
|
2022-04-17 22:06:31 +00:00
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->seen,
|
|
|
|
__entry->open,
|
|
|
|
__entry->need_journal_commit,
|
|
|
|
__entry->discarded,
|
2022-07-18 02:31:21 +00:00
|
|
|
__entry->err)
|
2022-04-17 22:06:31 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
TRACE_EVENT(bucket_invalidate,
|
2022-06-21 02:26:41 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, unsigned dev, u64 bucket, u32 sectors),
|
|
|
|
TP_ARGS(c, dev, bucket, sectors),
|
2022-04-17 22:06:31 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(u32, dev_idx )
|
2022-06-21 02:26:41 +00:00
|
|
|
__field(u32, sectors )
|
2022-04-17 22:06:31 +00:00
|
|
|
__field(u64, bucket )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->dev_idx = dev;
|
2022-06-21 02:26:41 +00:00
|
|
|
__entry->sectors = sectors;
|
2022-04-17 22:06:31 +00:00
|
|
|
__entry->bucket = bucket;
|
|
|
|
),
|
|
|
|
|
2022-06-21 02:26:41 +00:00
|
|
|
TP_printk("%d:%d invalidated %u:%llu cached sectors %u",
|
2022-04-17 22:06:31 +00:00
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
2022-06-21 02:26:41 +00:00
|
|
|
__entry->dev_idx, __entry->bucket,
|
|
|
|
__entry->sectors)
|
2022-04-17 22:06:31 +00:00
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
/* Moving IO */
|
|
|
|
|
2023-04-20 19:24:07 +00:00
|
|
|
TRACE_EVENT(bucket_evacuate,
|
|
|
|
TP_PROTO(struct bch_fs *c, struct bpos *bucket),
|
|
|
|
TP_ARGS(c, bucket),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(u32, dev_idx )
|
|
|
|
__field(u64, bucket )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->dev_idx = bucket->inode;
|
|
|
|
__entry->bucket = bucket->offset;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%d:%d %u:%llu",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->dev_idx, __entry->bucket)
|
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, move_extent,
|
2024-01-15 20:04:40 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2023-04-20 19:24:07 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, move_extent_read,
|
2024-01-15 20:04:40 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2022-08-27 16:48:36 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, move_extent_write,
|
2024-01-15 20:04:40 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, move_extent_finish,
|
2024-01-15 20:04:40 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2024-01-15 20:04:40 +00:00
|
|
|
DEFINE_EVENT(fs_str, move_extent_fail,
|
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2022-08-27 16:48:36 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, move_extent_start_fail,
|
2023-11-27 02:13:54 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
TRACE_EVENT(move_data,
|
2023-10-23 20:21:54 +00:00
|
|
|
TP_PROTO(struct bch_fs *c,
|
|
|
|
struct bch_move_stats *stats),
|
|
|
|
TP_ARGS(c, stats),
|
2017-03-17 06:18:50 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2023-10-23 20:21:54 +00:00
|
|
|
__field(dev_t, dev )
|
2017-03-17 06:18:50 +00:00
|
|
|
__field(u64, keys_moved )
|
2023-10-23 20:21:54 +00:00
|
|
|
__field(u64, keys_raced )
|
|
|
|
__field(u64, sectors_seen )
|
|
|
|
__field(u64, sectors_moved )
|
|
|
|
__field(u64, sectors_raced )
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2023-10-23 20:21:54 +00:00
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->keys_moved = atomic64_read(&stats->keys_moved);
|
|
|
|
__entry->keys_raced = atomic64_read(&stats->keys_raced);
|
|
|
|
__entry->sectors_seen = atomic64_read(&stats->sectors_seen);
|
|
|
|
__entry->sectors_moved = atomic64_read(&stats->sectors_moved);
|
|
|
|
__entry->sectors_raced = atomic64_read(&stats->sectors_raced);
|
2017-03-17 06:18:50 +00:00
|
|
|
),
|
|
|
|
|
2023-10-23 20:21:54 +00:00
|
|
|
TP_printk("%d,%d keys moved %llu raced %llu"
|
|
|
|
"sectors seen %llu moved %llu raced %llu",
|
2021-05-27 23:15:44 +00:00
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
2023-10-23 20:21:54 +00:00
|
|
|
__entry->keys_moved,
|
|
|
|
__entry->keys_raced,
|
|
|
|
__entry->sectors_seen,
|
|
|
|
__entry->sectors_moved,
|
|
|
|
__entry->sectors_raced)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2022-03-18 04:42:09 +00:00
|
|
|
TRACE_EVENT(evacuate_bucket,
|
|
|
|
TP_PROTO(struct bch_fs *c, struct bpos *bucket,
|
|
|
|
unsigned sectors, unsigned bucket_size,
|
2022-12-05 15:24:19 +00:00
|
|
|
u64 fragmentation, int ret),
|
|
|
|
TP_ARGS(c, bucket, sectors, bucket_size, fragmentation, ret),
|
2022-03-18 04:42:09 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(dev_t, dev )
|
|
|
|
__field(u64, member )
|
|
|
|
__field(u64, bucket )
|
|
|
|
__field(u32, sectors )
|
|
|
|
__field(u32, bucket_size )
|
2022-12-05 15:24:19 +00:00
|
|
|
__field(u64, fragmentation )
|
2022-03-18 04:42:09 +00:00
|
|
|
__field(int, ret )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->dev = c->dev;
|
|
|
|
__entry->member = bucket->inode;
|
|
|
|
__entry->bucket = bucket->offset;
|
|
|
|
__entry->sectors = sectors;
|
|
|
|
__entry->bucket_size = bucket_size;
|
2022-12-05 15:24:19 +00:00
|
|
|
__entry->fragmentation = fragmentation;
|
2022-03-18 04:42:09 +00:00
|
|
|
__entry->ret = ret;
|
|
|
|
),
|
|
|
|
|
2022-12-05 15:24:19 +00:00
|
|
|
TP_printk("%d,%d %llu:%llu sectors %u/%u fragmentation %llu ret %i",
|
2022-03-18 04:42:09 +00:00
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->member, __entry->bucket,
|
|
|
|
__entry->sectors, __entry->bucket_size,
|
2022-12-05 15:24:19 +00:00
|
|
|
__entry->fragmentation, __entry->ret)
|
2022-03-18 04:42:09 +00:00
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
TRACE_EVENT(copygc,
|
2020-07-11 20:28:54 +00:00
|
|
|
TP_PROTO(struct bch_fs *c,
|
2017-03-17 06:18:50 +00:00
|
|
|
u64 sectors_moved, u64 sectors_not_moved,
|
|
|
|
u64 buckets_moved, u64 buckets_not_moved),
|
2020-07-11 20:28:54 +00:00
|
|
|
TP_ARGS(c,
|
2017-03-17 06:18:50 +00:00
|
|
|
sectors_moved, sectors_not_moved,
|
|
|
|
buckets_moved, buckets_not_moved),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2021-05-27 23:15:44 +00:00
|
|
|
__field(dev_t, dev )
|
2017-03-17 06:18:50 +00:00
|
|
|
__field(u64, sectors_moved )
|
|
|
|
__field(u64, sectors_not_moved )
|
|
|
|
__field(u64, buckets_moved )
|
|
|
|
__field(u64, buckets_not_moved )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2021-05-27 23:15:44 +00:00
|
|
|
__entry->dev = c->dev;
|
2017-03-17 06:18:50 +00:00
|
|
|
__entry->sectors_moved = sectors_moved;
|
|
|
|
__entry->sectors_not_moved = sectors_not_moved;
|
|
|
|
__entry->buckets_moved = buckets_moved;
|
|
|
|
__entry->buckets_not_moved = buckets_moved;
|
|
|
|
),
|
|
|
|
|
2021-05-27 23:15:44 +00:00
|
|
|
TP_printk("%d,%d sectors moved %llu remain %llu buckets moved %llu remain %llu",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->sectors_moved, __entry->sectors_not_moved,
|
|
|
|
__entry->buckets_moved, __entry->buckets_not_moved)
|
2017-03-17 06:18:50 +00:00
|
|
|
);
|
|
|
|
|
2021-05-26 05:03:35 +00:00
|
|
|
TRACE_EVENT(copygc_wait,
|
|
|
|
TP_PROTO(struct bch_fs *c,
|
|
|
|
u64 wait_amount, u64 until),
|
|
|
|
TP_ARGS(c, wait_amount, until),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2021-05-27 23:15:44 +00:00
|
|
|
__field(dev_t, dev )
|
2021-05-26 05:03:35 +00:00
|
|
|
__field(u64, wait_amount )
|
|
|
|
__field(u64, until )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2021-05-27 23:15:44 +00:00
|
|
|
__entry->dev = c->dev;
|
2021-05-26 05:03:35 +00:00
|
|
|
__entry->wait_amount = wait_amount;
|
|
|
|
__entry->until = until;
|
|
|
|
),
|
|
|
|
|
2021-05-27 23:15:44 +00:00
|
|
|
TP_printk("%d,%u waiting for %llu sectors until %llu",
|
|
|
|
MAJOR(__entry->dev), MINOR(__entry->dev),
|
|
|
|
__entry->wait_amount, __entry->until)
|
2021-05-26 05:03:35 +00:00
|
|
|
);
|
|
|
|
|
2022-08-18 21:00:12 +00:00
|
|
|
/* btree transactions: */
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DECLARE_EVENT_CLASS(transaction_event,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip),
|
2019-04-23 04:10:08 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2021-06-04 19:18:10 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
2019-04-23 04:10:08 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2021-06-04 19:18:10 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
2019-04-23 04:10:08 +00:00
|
|
|
),
|
|
|
|
|
2022-01-04 05:33:52 +00:00
|
|
|
TP_printk("%s %pS", __entry->trans_fn, (void *) __entry->caller_ip)
|
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(transaction_event, transaction_commit,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-04-17 22:06:31 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2022-04-17 22:06:31 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_restart_injected,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-07-18 00:22:30 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2022-07-18 00:22:30 +00:00
|
|
|
);
|
|
|
|
|
2023-03-30 20:04:02 +00:00
|
|
|
TRACE_EVENT(trans_restart_split_race,
|
2023-02-20 21:41:03 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2023-03-30 20:04:02 +00:00
|
|
|
unsigned long caller_ip,
|
|
|
|
struct btree *b),
|
|
|
|
TP_ARGS(trans, caller_ip, b),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__field(u8, level )
|
|
|
|
__field(u16, written )
|
|
|
|
__field(u16, blocks )
|
|
|
|
__field(u16, u64s_remaining )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
__entry->level = b->c.level;
|
|
|
|
__entry->written = b->written;
|
|
|
|
__entry->blocks = btree_blocks(trans->c);
|
2024-01-16 18:29:59 +00:00
|
|
|
__entry->u64s_remaining = bch2_btree_keys_u64s_remaining(b);
|
2023-03-30 20:04:02 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%s %pS l=%u written %u/%u u64s remaining %u",
|
|
|
|
__entry->trans_fn, (void *) __entry->caller_ip,
|
|
|
|
__entry->level,
|
|
|
|
__entry->written, __entry->blocks,
|
|
|
|
__entry->u64s_remaining)
|
2023-02-20 21:41:03 +00:00
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_blocked_journal_reclaim,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2019-04-23 04:10:08 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:23:38 +00:00
|
|
|
TRACE_EVENT(trans_restart_journal_preres_get,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-08-27 16:23:38 +00:00
|
|
|
unsigned long caller_ip,
|
|
|
|
unsigned flags),
|
|
|
|
TP_ARGS(trans, caller_ip, flags),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__field(unsigned, flags )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2022-08-27 16:23:38 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
__entry->flags = flags;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%s %pS %x", __entry->trans_fn,
|
|
|
|
(void *) __entry->caller_ip,
|
|
|
|
__entry->flags)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_restart_fault_inject,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_traverse_all,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2022-04-17 22:06:31 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_restart_key_cache_raced,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(trans_str, trans_restart_too_many_iters,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2023-11-26 22:02:06 +00:00
|
|
|
unsigned long caller_ip,
|
|
|
|
const char *paths),
|
|
|
|
TP_ARGS(trans, caller_ip, paths)
|
2022-07-05 21:27:44 +00:00
|
|
|
);
|
|
|
|
|
2021-06-04 19:18:10 +00:00
|
|
|
DECLARE_EVENT_CLASS(transaction_restart_iter,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path),
|
2021-06-04 19:18:10 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2022-02-16 05:42:34 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
2021-06-04 19:18:10 +00:00
|
|
|
__field(u8, btree_id )
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_entries(pos)
|
2021-06-04 19:18:10 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2022-02-16 05:42:34 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
2022-08-10 16:42:55 +00:00
|
|
|
__entry->btree_id = path->btree_id;
|
|
|
|
TRACE_BPOS_assign(pos, path->pos)
|
2021-06-04 19:18:10 +00:00
|
|
|
),
|
|
|
|
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_printk("%s %pS btree %s pos %llu:%llu:%u",
|
2022-01-04 05:33:52 +00:00
|
|
|
__entry->trans_fn,
|
2022-02-16 05:42:34 +00:00
|
|
|
(void *) __entry->caller_ip,
|
2023-10-20 02:49:08 +00:00
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
2021-06-04 19:18:10 +00:00
|
|
|
__entry->pos_inode,
|
|
|
|
__entry->pos_offset,
|
|
|
|
__entry->pos_snapshot)
|
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_btree_node_reused,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_btree_node_split,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2022-09-17 18:36:24 +00:00
|
|
|
TRACE_EVENT(trans_restart_upgrade,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip,
|
2022-09-17 18:36:24 +00:00
|
|
|
struct btree_path *path,
|
|
|
|
unsigned old_locks_want,
|
2023-10-27 19:23:46 +00:00
|
|
|
unsigned new_locks_want,
|
|
|
|
struct get_locks_fail *f),
|
|
|
|
TP_ARGS(trans, caller_ip, path, old_locks_want, new_locks_want, f),
|
2021-06-04 19:18:10 +00:00
|
|
|
|
2022-09-17 18:36:24 +00:00
|
|
|
TP_STRUCT__entry(
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__field(u8, btree_id )
|
|
|
|
__field(u8, old_locks_want )
|
|
|
|
__field(u8, new_locks_want )
|
2023-10-27 19:23:46 +00:00
|
|
|
__field(u8, level )
|
|
|
|
__field(u32, path_seq )
|
|
|
|
__field(u32, node_seq )
|
2022-09-17 18:36:24 +00:00
|
|
|
TRACE_BPOS_entries(pos)
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
__entry->btree_id = path->btree_id;
|
|
|
|
__entry->old_locks_want = old_locks_want;
|
|
|
|
__entry->new_locks_want = new_locks_want;
|
2023-10-27 19:23:46 +00:00
|
|
|
__entry->level = f->l;
|
|
|
|
__entry->path_seq = path->l[f->l].lock_seq;
|
|
|
|
__entry->node_seq = IS_ERR_OR_NULL(f->b) ? 0 : f->b->c.lock.seq;
|
2022-09-17 18:36:24 +00:00
|
|
|
TRACE_BPOS_assign(pos, path->pos)
|
|
|
|
),
|
|
|
|
|
2023-12-10 21:12:24 +00:00
|
|
|
TP_printk("%s %pS btree %s pos %llu:%llu:%u locks_want %u -> %u level %u path seq %u node seq %u",
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->trans_fn,
|
|
|
|
(void *) __entry->caller_ip,
|
2023-10-20 02:49:08 +00:00
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
2022-09-17 18:36:24 +00:00
|
|
|
__entry->pos_inode,
|
|
|
|
__entry->pos_offset,
|
|
|
|
__entry->pos_snapshot,
|
|
|
|
__entry->old_locks_want,
|
2023-10-27 19:23:46 +00:00
|
|
|
__entry->new_locks_want,
|
|
|
|
__entry->level,
|
|
|
|
__entry->path_seq,
|
2023-12-10 21:12:24 +00:00
|
|
|
__entry->node_seq)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2024-01-16 01:40:06 +00:00
|
|
|
DEFINE_EVENT(trans_str, trans_restart_relock,
|
|
|
|
TP_PROTO(struct btree_trans *trans, unsigned long caller_ip, const char *str),
|
|
|
|
TP_ARGS(trans, caller_ip, str)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2022-01-09 03:59:58 +00:00
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_next_node,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-01-09 03:59:58 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_parent_for_fill,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-01-09 03:59:58 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_after_fill,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-01-09 03:59:58 +00:00
|
|
|
);
|
|
|
|
|
2022-08-27 16:48:36 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_restart_key_cache_upgrade,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-08-07 17:43:32 +00:00
|
|
|
unsigned long caller_ip),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip)
|
2022-08-07 17:43:32 +00:00
|
|
|
);
|
|
|
|
|
2022-01-09 03:59:58 +00:00
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_key_cache_fill,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-01-09 03:59:58 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_path,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-01-09 03:59:58 +00:00
|
|
|
);
|
|
|
|
|
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_relock_path_intent,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-09 03:59:58 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-01-09 03:59:58 +00:00
|
|
|
);
|
|
|
|
|
2021-06-04 19:18:10 +00:00
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_traverse,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2021-06-04 19:18:10 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2021-06-04 19:18:10 +00:00
|
|
|
);
|
|
|
|
|
2022-02-18 05:47:45 +00:00
|
|
|
DEFINE_EVENT(transaction_restart_iter, trans_restart_memory_allocation_failure,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-02-18 05:47:45 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path),
|
|
|
|
TP_ARGS(trans, caller_ip, path)
|
2022-02-18 05:47:45 +00:00
|
|
|
);
|
|
|
|
|
2024-01-04 23:59:17 +00:00
|
|
|
DEFINE_EVENT(trans_str_nocaller, trans_restart_would_deadlock,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2023-05-26 20:59:07 +00:00
|
|
|
const char *cycle),
|
2024-01-04 23:59:17 +00:00
|
|
|
TP_ARGS(trans, cycle)
|
2019-04-23 04:10:08 +00:00
|
|
|
);
|
|
|
|
|
bcachefs: Deadlock cycle detector
We've outgrown our own deadlock avoidance strategy.
The btree iterator API provides an interface where the user doesn't need
to concern themselves with lock ordering - different btree iterators can
be traversed in any order. Without special care, this will lead to
deadlocks.
Our previous strategy was to define a lock ordering internally, and
whenever we attempt to take a lock and trylock() fails, we'd check if
the current btree transaction is holding any locks that cause a lock
ordering violation. If so, we'd issue a transaction restart, and then
bch2_trans_begin() would re-traverse all previously used iterators, but
in the correct order.
That approach had some issues, though.
- Sometimes we'd issue transaction restarts unnecessarily, when no
deadlock would have actually occured. Lock ordering restarts have
become our primary cause of transaction restarts, on some workloads
totally 20% of actual transaction commits.
- To avoid deadlock or livelock, we'd often have to take intent locks
when we only wanted a read lock: with the lock ordering approach, it
is actually illegal to hold _any_ read lock while blocking on an intent
lock, and this has been causing us unnecessary lock contention.
- It was getting fragile - the various lock ordering rules are not
trivial, and we'd been seeing occasional livelock issues related to
this machinery.
So, since bcachefs is already a relational database masquerading as a
filesystem, we're stealing the next traditional database technique and
switching to a cycle detector for avoiding deadlocks.
When we block taking a btree lock, after adding ourself to the waitlist
but before sleeping, we do a DFS of btree transactions waiting on other
btree transactions, starting with the current transaction and walking
our held locks, and transactions blocking on our held locks.
If we find a cycle, we emit a transaction restart. Occasionally (e.g.
the btree split path) we can not allow the lock() operation to fail, so
if necessary we'll tell another transaction that it has to fail.
Result: trans_restart_would_deadlock events are reduced by a factor of
10 to 100, and we'll be able to delete a whole bunch of grotty, fragile
code.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2022-08-22 17:23:47 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_restart_would_deadlock_recursion_limit,
|
|
|
|
TP_PROTO(struct btree_trans *trans,
|
|
|
|
unsigned long caller_ip),
|
|
|
|
TP_ARGS(trans, caller_ip)
|
|
|
|
);
|
|
|
|
|
2021-09-08 01:25:32 +00:00
|
|
|
TRACE_EVENT(trans_restart_would_deadlock_write,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans),
|
|
|
|
TP_ARGS(trans),
|
2021-09-08 01:25:32 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2021-09-08 01:25:32 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2021-09-08 01:25:32 +00:00
|
|
|
),
|
|
|
|
|
2022-01-04 05:33:52 +00:00
|
|
|
TP_printk("%s", __entry->trans_fn)
|
2021-09-08 01:25:32 +00:00
|
|
|
);
|
|
|
|
|
2019-05-15 14:54:43 +00:00
|
|
|
TRACE_EVENT(trans_restart_mem_realloced,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-01-04 05:33:52 +00:00
|
|
|
unsigned long caller_ip,
|
2021-04-15 16:50:09 +00:00
|
|
|
unsigned long bytes),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip, bytes),
|
2019-05-15 14:54:43 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2021-04-15 16:50:09 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__field(unsigned long, bytes )
|
2019-05-15 14:54:43 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2021-04-15 16:50:09 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
__entry->bytes = bytes;
|
2019-05-15 14:54:43 +00:00
|
|
|
),
|
|
|
|
|
2022-01-04 05:33:52 +00:00
|
|
|
TP_printk("%s %pS bytes %lu",
|
|
|
|
__entry->trans_fn,
|
2021-04-15 16:50:09 +00:00
|
|
|
(void *) __entry->caller_ip,
|
|
|
|
__entry->bytes)
|
2019-04-23 04:10:08 +00:00
|
|
|
);
|
|
|
|
|
2022-03-18 01:35:51 +00:00
|
|
|
TRACE_EVENT(trans_restart_key_cache_key_realloced,
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans,
|
2022-02-27 16:34:21 +00:00
|
|
|
unsigned long caller_ip,
|
2022-08-10 16:42:55 +00:00
|
|
|
struct btree_path *path,
|
2022-03-18 01:35:51 +00:00
|
|
|
unsigned old_u64s,
|
|
|
|
unsigned new_u64s),
|
2022-08-10 16:42:55 +00:00
|
|
|
TP_ARGS(trans, caller_ip, path, old_u64s, new_u64s),
|
2022-03-18 01:35:51 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2022-08-27 16:11:18 +00:00
|
|
|
__array(char, trans_fn, 32 )
|
2022-03-18 01:35:51 +00:00
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
__field(enum btree_id, btree_id )
|
2022-08-10 16:42:55 +00:00
|
|
|
TRACE_BPOS_entries(pos)
|
2022-03-18 01:35:51 +00:00
|
|
|
__field(u32, old_u64s )
|
|
|
|
__field(u32, new_u64s )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2022-10-22 19:59:53 +00:00
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
2022-08-10 16:42:55 +00:00
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
|
|
|
|
__entry->btree_id = path->btree_id;
|
|
|
|
TRACE_BPOS_assign(pos, path->pos);
|
2022-03-18 01:35:51 +00:00
|
|
|
__entry->old_u64s = old_u64s;
|
|
|
|
__entry->new_u64s = new_u64s;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%s %pS btree %s pos %llu:%llu:%u old_u64s %u new_u64s %u",
|
|
|
|
__entry->trans_fn,
|
|
|
|
(void *) __entry->caller_ip,
|
2023-10-20 02:49:08 +00:00
|
|
|
bch2_btree_id_str(__entry->btree_id),
|
2022-08-07 17:43:32 +00:00
|
|
|
__entry->pos_inode,
|
|
|
|
__entry->pos_offset,
|
2022-08-10 16:42:55 +00:00
|
|
|
__entry->pos_snapshot,
|
|
|
|
__entry->old_u64s,
|
|
|
|
__entry->new_u64s)
|
2022-08-07 17:43:32 +00:00
|
|
|
);
|
|
|
|
|
2023-10-27 19:23:46 +00:00
|
|
|
TRACE_EVENT(path_downgrade,
|
|
|
|
TP_PROTO(struct btree_trans *trans,
|
|
|
|
unsigned long caller_ip,
|
2023-11-13 02:47:15 +00:00
|
|
|
struct btree_path *path,
|
|
|
|
unsigned old_locks_want),
|
|
|
|
TP_ARGS(trans, caller_ip, path, old_locks_want),
|
2023-10-27 19:23:46 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(unsigned long, caller_ip )
|
2023-11-13 02:47:15 +00:00
|
|
|
__field(unsigned, old_locks_want )
|
|
|
|
__field(unsigned, new_locks_want )
|
|
|
|
__field(unsigned, btree )
|
|
|
|
TRACE_BPOS_entries(pos)
|
2023-10-27 19:23:46 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
__entry->caller_ip = caller_ip;
|
2023-11-13 02:47:15 +00:00
|
|
|
__entry->old_locks_want = old_locks_want;
|
|
|
|
__entry->new_locks_want = path->locks_want;
|
|
|
|
__entry->btree = path->btree_id;
|
|
|
|
TRACE_BPOS_assign(pos, path->pos);
|
2023-10-27 19:23:46 +00:00
|
|
|
),
|
|
|
|
|
2023-11-13 02:47:15 +00:00
|
|
|
TP_printk("%s %pS locks_want %u -> %u %s %llu:%llu:%u",
|
2023-10-27 19:23:46 +00:00
|
|
|
__entry->trans_fn,
|
2023-11-13 02:47:15 +00:00
|
|
|
(void *) __entry->caller_ip,
|
|
|
|
__entry->old_locks_want,
|
|
|
|
__entry->new_locks_want,
|
|
|
|
bch2_btree_id_str(__entry->btree),
|
|
|
|
__entry->pos_inode,
|
|
|
|
__entry->pos_offset,
|
|
|
|
__entry->pos_snapshot)
|
2023-10-27 19:23:46 +00:00
|
|
|
);
|
|
|
|
|
bcachefs: Btree write buffer
This adds a new method of doing btree updates - a straight write buffer,
implemented as a flat fixed size array.
This is only useful when we don't need to read from the btree in order
to do the update, and when reading is infrequent - perfect for the LRU
btree.
This will make LRU btree updates fast enough that we'll be able to use
it for persistently indexing buckets by fragmentation, which will be a
massive boost to copygc performance.
Changes:
- A new btree_insert_type enum, for btree_insert_entries. Specifies
btree, btree key cache, or btree write buffer.
- bch2_trans_update_buffered(): updates via the btree write buffer
don't need a btree path, so we need a new update path.
- Transaction commit path changes:
The update to the btree write buffer both mutates global, and can
fail if there isn't currently room. Therefore we do all write buffer
updates in the transaction all at once, and also if it fails we have
to revert filesystem usage counter changes.
If there isn't room we flush the write buffer in the transaction
commit error path and retry.
- A new persistent option, for specifying the number of entries in the
write buffer.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-01-04 05:00:50 +00:00
|
|
|
DEFINE_EVENT(transaction_event, trans_restart_write_buffer_flush,
|
|
|
|
TP_PROTO(struct btree_trans *trans,
|
|
|
|
unsigned long caller_ip),
|
|
|
|
TP_ARGS(trans, caller_ip)
|
|
|
|
);
|
|
|
|
|
|
|
|
TRACE_EVENT(write_buffer_flush,
|
|
|
|
TP_PROTO(struct btree_trans *trans, size_t nr, size_t skipped, size_t fast, size_t size),
|
|
|
|
TP_ARGS(trans, nr, skipped, fast, size),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__field(size_t, nr )
|
|
|
|
__field(size_t, skipped )
|
|
|
|
__field(size_t, fast )
|
|
|
|
__field(size_t, size )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
__entry->nr = nr;
|
|
|
|
__entry->skipped = skipped;
|
|
|
|
__entry->fast = fast;
|
|
|
|
__entry->size = size;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%zu/%zu skipped %zu fast %zu",
|
|
|
|
__entry->nr, __entry->size, __entry->skipped, __entry->fast)
|
|
|
|
);
|
|
|
|
|
2023-11-03 02:31:16 +00:00
|
|
|
TRACE_EVENT(write_buffer_flush_sync,
|
|
|
|
TP_PROTO(struct btree_trans *trans, unsigned long caller_ip),
|
|
|
|
TP_ARGS(trans, caller_ip),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__array(char, trans_fn, 32 )
|
|
|
|
__field(unsigned long, caller_ip )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
strscpy(__entry->trans_fn, trans->fn, sizeof(__entry->trans_fn));
|
|
|
|
__entry->caller_ip = caller_ip;
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%s %pS", __entry->trans_fn, (void *) __entry->caller_ip)
|
|
|
|
);
|
|
|
|
|
bcachefs: Btree write buffer
This adds a new method of doing btree updates - a straight write buffer,
implemented as a flat fixed size array.
This is only useful when we don't need to read from the btree in order
to do the update, and when reading is infrequent - perfect for the LRU
btree.
This will make LRU btree updates fast enough that we'll be able to use
it for persistently indexing buckets by fragmentation, which will be a
massive boost to copygc performance.
Changes:
- A new btree_insert_type enum, for btree_insert_entries. Specifies
btree, btree key cache, or btree write buffer.
- bch2_trans_update_buffered(): updates via the btree write buffer
don't need a btree path, so we need a new update path.
- Transaction commit path changes:
The update to the btree write buffer both mutates global, and can
fail if there isn't currently room. Therefore we do all write buffer
updates in the transaction all at once, and also if it fails we have
to revert filesystem usage counter changes.
If there isn't room we flush the write buffer in the transaction
commit error path and retry.
- A new persistent option, for specifying the number of entries in the
write buffer.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-01-04 05:00:50 +00:00
|
|
|
TRACE_EVENT(write_buffer_flush_slowpath,
|
2023-11-03 02:31:16 +00:00
|
|
|
TP_PROTO(struct btree_trans *trans, size_t slowpath, size_t total),
|
|
|
|
TP_ARGS(trans, slowpath, total),
|
bcachefs: Btree write buffer
This adds a new method of doing btree updates - a straight write buffer,
implemented as a flat fixed size array.
This is only useful when we don't need to read from the btree in order
to do the update, and when reading is infrequent - perfect for the LRU
btree.
This will make LRU btree updates fast enough that we'll be able to use
it for persistently indexing buckets by fragmentation, which will be a
massive boost to copygc performance.
Changes:
- A new btree_insert_type enum, for btree_insert_entries. Specifies
btree, btree key cache, or btree write buffer.
- bch2_trans_update_buffered(): updates via the btree write buffer
don't need a btree path, so we need a new update path.
- Transaction commit path changes:
The update to the btree write buffer both mutates global, and can
fail if there isn't currently room. Therefore we do all write buffer
updates in the transaction all at once, and also if it fails we have
to revert filesystem usage counter changes.
If there isn't room we flush the write buffer in the transaction
commit error path and retry.
- A new persistent option, for specifying the number of entries in the
write buffer.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-01-04 05:00:50 +00:00
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
2023-11-03 02:31:16 +00:00
|
|
|
__field(size_t, slowpath )
|
|
|
|
__field(size_t, total )
|
bcachefs: Btree write buffer
This adds a new method of doing btree updates - a straight write buffer,
implemented as a flat fixed size array.
This is only useful when we don't need to read from the btree in order
to do the update, and when reading is infrequent - perfect for the LRU
btree.
This will make LRU btree updates fast enough that we'll be able to use
it for persistently indexing buckets by fragmentation, which will be a
massive boost to copygc performance.
Changes:
- A new btree_insert_type enum, for btree_insert_entries. Specifies
btree, btree key cache, or btree write buffer.
- bch2_trans_update_buffered(): updates via the btree write buffer
don't need a btree path, so we need a new update path.
- Transaction commit path changes:
The update to the btree write buffer both mutates global, and can
fail if there isn't currently room. Therefore we do all write buffer
updates in the transaction all at once, and also if it fails we have
to revert filesystem usage counter changes.
If there isn't room we flush the write buffer in the transaction
commit error path and retry.
- A new persistent option, for specifying the number of entries in the
write buffer.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-01-04 05:00:50 +00:00
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
2023-11-03 02:31:16 +00:00
|
|
|
__entry->slowpath = slowpath;
|
|
|
|
__entry->total = total;
|
bcachefs: Btree write buffer
This adds a new method of doing btree updates - a straight write buffer,
implemented as a flat fixed size array.
This is only useful when we don't need to read from the btree in order
to do the update, and when reading is infrequent - perfect for the LRU
btree.
This will make LRU btree updates fast enough that we'll be able to use
it for persistently indexing buckets by fragmentation, which will be a
massive boost to copygc performance.
Changes:
- A new btree_insert_type enum, for btree_insert_entries. Specifies
btree, btree key cache, or btree write buffer.
- bch2_trans_update_buffered(): updates via the btree write buffer
don't need a btree path, so we need a new update path.
- Transaction commit path changes:
The update to the btree write buffer both mutates global, and can
fail if there isn't currently room. Therefore we do all write buffer
updates in the transaction all at once, and also if it fails we have
to revert filesystem usage counter changes.
If there isn't room we flush the write buffer in the transaction
commit error path and retry.
- A new persistent option, for specifying the number of entries in the
write buffer.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-01-04 05:00:50 +00:00
|
|
|
),
|
|
|
|
|
2023-11-03 02:31:16 +00:00
|
|
|
TP_printk("%zu/%zu", __entry->slowpath, __entry->total)
|
bcachefs: Btree write buffer
This adds a new method of doing btree updates - a straight write buffer,
implemented as a flat fixed size array.
This is only useful when we don't need to read from the btree in order
to do the update, and when reading is infrequent - perfect for the LRU
btree.
This will make LRU btree updates fast enough that we'll be able to use
it for persistently indexing buckets by fragmentation, which will be a
massive boost to copygc performance.
Changes:
- A new btree_insert_type enum, for btree_insert_entries. Specifies
btree, btree key cache, or btree write buffer.
- bch2_trans_update_buffered(): updates via the btree write buffer
don't need a btree path, so we need a new update path.
- Transaction commit path changes:
The update to the btree write buffer both mutates global, and can
fail if there isn't currently room. Therefore we do all write buffer
updates in the transaction all at once, and also if it fails we have
to revert filesystem usage counter changes.
If there isn't room we flush the write buffer in the transaction
commit error path and retry.
- A new persistent option, for specifying the number of entries in the
write buffer.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-01-04 05:00:50 +00:00
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, rebalance_extent,
|
2023-11-25 02:52:17 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
|
|
|
);
|
|
|
|
|
2023-11-26 22:02:06 +00:00
|
|
|
DEFINE_EVENT(fs_str, data_update,
|
2023-11-25 02:52:17 +00:00
|
|
|
TP_PROTO(struct bch_fs *c, const char *str),
|
|
|
|
TP_ARGS(c, str)
|
|
|
|
);
|
|
|
|
|
2024-02-22 03:10:09 +00:00
|
|
|
TRACE_EVENT(error_downcast,
|
|
|
|
TP_PROTO(int bch_err, int std_err, unsigned long ip),
|
|
|
|
TP_ARGS(bch_err, std_err, ip),
|
|
|
|
|
|
|
|
TP_STRUCT__entry(
|
|
|
|
__array(char, bch_err, 32 )
|
|
|
|
__array(char, std_err, 32 )
|
|
|
|
__array(char, ip, 32 )
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_fast_assign(
|
|
|
|
strscpy(__entry->bch_err, bch2_err_str(bch_err), sizeof(__entry->bch_err));
|
|
|
|
strscpy(__entry->std_err, bch2_err_str(std_err), sizeof(__entry->std_err));
|
|
|
|
snprintf(__entry->ip, sizeof(__entry->ip), "%ps", (void *) ip);
|
|
|
|
),
|
|
|
|
|
|
|
|
TP_printk("%s -> %s %s", __entry->bch_err, __entry->std_err, __entry->ip)
|
|
|
|
);
|
|
|
|
|
2017-03-17 06:18:50 +00:00
|
|
|
#endif /* _TRACE_BCACHEFS_H */
|
|
|
|
|
|
|
|
/* This part must be outside protection */
|
|
|
|
#undef TRACE_INCLUDE_PATH
|
|
|
|
#define TRACE_INCLUDE_PATH ../../fs/bcachefs
|
|
|
|
|
|
|
|
#undef TRACE_INCLUDE_FILE
|
|
|
|
#define TRACE_INCLUDE_FILE trace
|
|
|
|
|
|
|
|
#include <trace/define_trace.h>
|