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bcachefs: Add a tracepoint for journal entry close

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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-11-16 20:41:10 -05:00
parent b27d7afb79
commit ae0e61175e
2 changed files with 21 additions and 0 deletions
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2
fs/bcachefs/journal.c
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@ -184,6 +184,8 @@ static void __journal_entry_close(struct journal *j, unsigned closed_val)
/* Close out old buffer: */
buf->data->u64s = cpu_to_le32(old.cur_entry_offset);
trace_journal_entry_close(c, vstruct_bytes(buf->data));
sectors = vstruct_blocks_plus(buf->data, c->block_bits,
buf->u64s_reserved) << c->block_bits;
BUG_ON(sectors > buf->sectors);

19
fs/bcachefs/trace.h
View File

@ -188,6 +188,25 @@ DEFINE_EVENT(bch_fs, journal_entry_full,
TP_ARGS(c)
);
TRACE_EVENT(journal_entry_close,
TP_PROTO(struct bch_fs *c, unsigned bytes),
TP_ARGS(c, bytes),
TP_STRUCT__entry(
__field(dev_t, dev )
__field(u32, bytes )
),
TP_fast_assign(
__entry->dev = c->dev;
__entry->bytes = bytes;
),
TP_printk("%d,%d entry bytes %u",
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->bytes)
);
DEFINE_EVENT(bio, journal_write,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)