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| author | Filipe Manana <fdmanana@suse.com> | 2026-04-23 15:56:52 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2026-06-08 15:53:34 +0200 |
| commit | 99314d7cc711b4105a9546e63a210ead0d3f6178 (patch) | |
| tree | 8a6f3285ec562978f5f03540dea5f02b35032799 /include/trace | |
| parent | b4bbe7d7591e65cf9cc4975ea124fc717df9f128 (diff) | |
| download | lwn-99314d7cc711b4105a9546e63a210ead0d3f6178.tar.gz lwn-99314d7cc711b4105a9546e63a210ead0d3f6178.zip | |
btrfs: tracepoints: add trace event for the start of a new transaction
While tracing it's useful to know not just when a transaction is committed
or aborted, but also when a new one is started. So add a trace event for
transaction starts.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/btrfs.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index cb9b6188fcdd..e43528003848 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -32,6 +32,7 @@ struct btrfs_raid_bio; struct raid56_bio_trace_info; struct find_free_extent_ctl; struct btrfs_trans_handle; +struct btrfs_transaction; #define show_ref_type(type) \ __print_symbolic(type, \ @@ -181,6 +182,23 @@ FLUSH_STATES #define TP_printk_btrfs(fmt, args...) \ TP_printk("%pU: " fmt, __entry->fsid, args) +TRACE_EVENT(btrfs_transaction_start, + + TP_PROTO(const struct btrfs_transaction *trans), + + TP_ARGS(trans), + + TP_STRUCT__entry_btrfs( + __field( u64, generation ) + ), + + TP_fast_assign_btrfs(trans->fs_info, + __entry->generation = trans->transid; + ), + + TP_printk_btrfs("gen=%llu", __entry->generation) +); + TRACE_EVENT(btrfs_transaction_commit, TP_PROTO(const struct btrfs_trans_handle *trans), |