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btrfs: use fs_info for btrfs_handle_em_exist tracepoint

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We really want to know to which filesystem the extent map events belong,
but as it cannot be reached from the extent_map pointers, we need to
pass it down the callchain.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2018-04-03 21:45:57 +02:00
parent 0e08eb9b1c
commit f46b24c945
5 changed files with 18 additions and 13 deletions
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12
include/trace/events/btrfs.h
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@@ -256,11 +256,13 @@ TRACE_EVENT_CONDITION(btrfs_get_extent,
TRACE_EVENT(btrfs_handle_em_exist,
TP_PROTO(const struct extent_map *existing, const struct extent_map *map, u64 start, u64 len),
TP_PROTO(struct btrfs_fs_info *fs_info,
const struct extent_map *existing, const struct extent_map *map,
u64 start, u64 len),
TP_ARGS(existing, map, start, len),
TP_ARGS(fs_info, existing, map, start, len),
TP_STRUCT__entry(
TP_STRUCT__entry_btrfs(
__field( u64, e_start )
__field( u64, e_len )
__field( u64, map_start )
@@ -269,7 +271,7 @@ TRACE_EVENT(btrfs_handle_em_exist,
__field( u64, len )
),
TP_fast_assign(
TP_fast_assign_btrfs(fs_info,
__entry->e_start = existing->start;
__entry->e_len = existing->len;
__entry->map_start = map->start;
@@ -278,7 +280,7 @@ TRACE_EVENT(btrfs_handle_em_exist,
__entry->len = len;
),
TP_printk("start=%llu len=%llu "
TP_printk_btrfs("start=%llu len=%llu "
"existing(start=%llu len=%llu) "
"em(start=%llu len=%llu)",
__entry->start,