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bcache: bcache_write tracepoint was crashing

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Signed-off-by: Kent Overstreet <[email protected]>
This commit is contained in:
Slava Pestov 2014-05-22 12:14:24 -07:00 • committed by Kent Overstreet
commit 60ae81eee8
2 changed files with 11 additions and 7 deletions
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15
include/trace/events/bcache.h
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@ -148,11 +148,13 @@ TRACE_EVENT(bcache_read,
);
TRACE_EVENT(bcache_write,
TP_PROTO(struct bio *bio, bool writeback, bool bypass),
TP_ARGS(bio, writeback, bypass),
TP_PROTO(struct cache_set *c, u64 inode, struct bio *bio,
bool writeback, bool bypass),
TP_ARGS(c, inode, bio, writeback, bypass),
TP_STRUCT__entry(
__field(dev_t, dev )
__array(char, uuid, 16 )
__field(u64, inode )
__field(sector_t, sector )
__field(unsigned int, nr_sector )
__array(char, rwbs, 6 )
@ -161,7 +163,8 @@ TRACE_EVENT(bcache_write,
),
TP_fast_assign(
__entry->dev = bio->bi_bdev->bd_dev;
memcpy(__entry->uuid, c->sb.set_uuid, 16);
__entry->inode = inode;
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio->bi_iter.bi_size >> 9;
blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size);
@ -169,8 +172,8 @@ TRACE_EVENT(bcache_write,
__entry->bypass = bypass;
),
TP_printk("%d,%d %s %llu + %u hit %u bypass %u",
MAJOR(__entry->dev), MINOR(__entry->dev),
TP_printk("%pU inode %llu %s %llu + %u hit %u bypass %u",
__entry->uuid, __entry->inode,
__entry->rwbs, (unsigned long long)__entry->sector,
__entry->nr_sector, __entry->writeback, __entry->bypass)
);