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| author | Ritesh Harjani <riteshh@linux.ibm.com> | 2022-03-12 06:39:54 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2022-03-15 22:45:36 +0100 |
| commit | 5641ace54471cb5c393e71f33232088602455c6b (patch) | |
| tree | e41a720e37df7fcdca3e1f7c1ff273588c3c4a28 /include/trace/events/ext4.h | |
| parent | ext4: add commit_tid info in jbd debug log (diff) | |
| download | linux-5641ace54471cb5c393e71f33232088602455c6b.tar.xz linux-5641ace54471cb5c393e71f33232088602455c6b.zip | |
ext4: add commit tid info in ext4_fc_commit_start/stop trace events
This adds commit_tid info in ext4_fc_commit_start/stop which is helpful
in debugging fast_commit issues.
For e.g. issues where due to jbd2 journal full commit, FC miss to commit
updates to a file.
Also improves TP_prink format string i.e. all ext4 and jbd2 trace events
starts with "dev MAjOR,MINOR". Let's follow the same convention while we
are still at it.
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/ebcd6b9ab5b718db30f90854497886801ce38c63.1647057583.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'include/trace/events/ext4.h')
| -rw-r--r-- | include/trace/events/ext4.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 6bd90df07b5c..aad97376e032 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -2686,26 +2686,29 @@ TRACE_EVENT(ext4_fc_replay, ); TRACE_EVENT(ext4_fc_commit_start, - TP_PROTO(struct super_block *sb), + TP_PROTO(struct super_block *sb, tid_t commit_tid), - TP_ARGS(sb), + TP_ARGS(sb, commit_tid), TP_STRUCT__entry( __field(dev_t, dev) + __field(tid_t, tid) ), TP_fast_assign( __entry->dev = sb->s_dev; + __entry->tid = commit_tid; ), - TP_printk("fast_commit started on dev %d,%d", - MAJOR(__entry->dev), MINOR(__entry->dev)) + TP_printk("dev %d,%d tid %u", MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->tid) ); TRACE_EVENT(ext4_fc_commit_stop, - TP_PROTO(struct super_block *sb, int nblks, int reason), + TP_PROTO(struct super_block *sb, int nblks, int reason, + tid_t commit_tid), - TP_ARGS(sb, nblks, reason), + TP_ARGS(sb, nblks, reason, commit_tid), TP_STRUCT__entry( __field(dev_t, dev) @@ -2714,6 +2717,7 @@ TRACE_EVENT(ext4_fc_commit_stop, __field(int, num_fc) __field(int, num_fc_ineligible) __field(int, nblks_agg) + __field(tid_t, tid) ), TP_fast_assign( @@ -2724,12 +2728,13 @@ TRACE_EVENT(ext4_fc_commit_stop, __entry->num_fc_ineligible = EXT4_SB(sb)->s_fc_stats.fc_ineligible_commits; __entry->nblks_agg = EXT4_SB(sb)->s_fc_stats.fc_numblks; + __entry->tid = commit_tid; ), - TP_printk("fc on [%d,%d] nblks %d, reason %d, fc = %d, ineligible = %d, agg_nblks %d", + TP_printk("dev %d,%d nblks %d, reason %d, fc = %d, ineligible = %d, agg_nblks %d, tid %u", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->nblks, __entry->reason, __entry->num_fc, - __entry->num_fc_ineligible, __entry->nblks_agg) + __entry->num_fc_ineligible, __entry->nblks_agg, __entry->tid) ); #define FC_REASON_NAME_STAT(reason) \ |