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authorSlava Pestov <sp@daterainc.com>2014-05-22 23:14:24 +0400
committerKent Overstreet <kmo@daterainc.com>2014-08-05 02:23:03 +0400
commit60ae81eee86dd7a520db8c1e3d702b49fc0418b5 (patch)
treea9919f11951c3e96ad49db0b50c3964232f5f1b7 /include/trace/events/bcache.h
parent8e0948080670f6330229718b15a6a1a011d441ce (diff)
downloadlinux-60ae81eee86dd7a520db8c1e3d702b49fc0418b5.tar.xz
bcache: bcache_write tracepoint was crashing
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'include/trace/events/bcache.h')
-rw-r--r--include/trace/events/bcache.h15
1 files changed, 9 insertions, 6 deletions
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index c9c3c044b32f..6778e4135a8e 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -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)
);