Commit e78bd0d2 authored by Guoju Fang's avatar Guoju Fang Committed by Jens Axboe

bcache: print number of keys in trace_bcache_journal_write

Sometimes flush journal may be very frequent, so it's useful to dump
number of keys every time write journal.
Signed-off-by: default avatarGuoju Fang <fangguoju@gmail.com>
Signed-off-by: default avatarColy Li <colyli@suse.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent cc38ca7e
...@@ -663,7 +663,7 @@ static void journal_write_unlocked(struct closure *cl) ...@@ -663,7 +663,7 @@ static void journal_write_unlocked(struct closure *cl)
REQ_SYNC|REQ_META|REQ_PREFLUSH|REQ_FUA); REQ_SYNC|REQ_META|REQ_PREFLUSH|REQ_FUA);
bch_bio_map(bio, w->data); bch_bio_map(bio, w->data);
trace_bcache_journal_write(bio); trace_bcache_journal_write(bio, w->data->keys);
bio_list_add(&list, bio); bio_list_add(&list, bio);
SET_PTR_OFFSET(k, i, PTR_OFFSET(k, i) + sectors); SET_PTR_OFFSET(k, i, PTR_OFFSET(k, i) + sectors);
......
...@@ -221,9 +221,30 @@ DEFINE_EVENT(cache_set, bcache_journal_entry_full, ...@@ -221,9 +221,30 @@ DEFINE_EVENT(cache_set, bcache_journal_entry_full,
TP_ARGS(c) TP_ARGS(c)
); );
DEFINE_EVENT(bcache_bio, bcache_journal_write, TRACE_EVENT(bcache_journal_write,
TP_PROTO(struct bio *bio), TP_PROTO(struct bio *bio, u32 keys),
TP_ARGS(bio) TP_ARGS(bio, keys),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(sector_t, sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
__field(u32, nr_keys )
),
TP_fast_assign(
__entry->dev = bio_dev(bio);
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
__entry->nr_keys = keys;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
),
TP_printk("%d,%d %s %llu + %u keys %u",
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long)__entry->sector, __entry->nr_sector,
__entry->nr_keys)
); );
/* Btree */ /* Btree */
......
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