From: Ritesh Harjani <riteshh@linux.ibm.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-ext4@vger.kernel.org, Jan Kara <jack@suse.cz>,
"Theodore Ts'o" <tytso@mit.edu>,
Harshad Shirwadkar <harshadshirwadkar@gmail.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv2 00/10] ext4: Improve FC trace events
Date: Fri, 11 Mar 2022 08:44:31 +0530 [thread overview]
Message-ID: <20220311031431.3sfbibwuthn4xkym@riteshh-domain> (raw)
In-Reply-To: <20220310213356.3948cfb7@gandalf.local.home>
On 22/03/10 09:33PM, Steven Rostedt wrote:
> On Fri, 11 Mar 2022 07:49:31 +0530
> Ritesh Harjani <riteshh@linux.ibm.com> wrote:
>
> > > # cat /sys/kernel/tracing/events/ext4/ext4_fc_commit_stop/format
> >
> > I think you meant ext4_fc_stats.
>
> Sure.
>
> >
> > >
> > > and show me what it outputs.
> >
> > root@qemu:/home/qemu# cat /sys/kernel/tracing/events/ext4/ext4_fc_stats/format
> > name: ext4_fc_stats
> > ID: 986
> > format:
> > field:unsigned short common_type; offset:0; size:2; signed:0;
> > field:unsigned char common_flags; offset:2; size:1; signed:0;
> > field:unsigned char common_preempt_count; offset:3; size:1; signed:0;
> > field:int common_pid; offset:4; size:4; signed:1;
> >
> > field:dev_t dev; offset:8; size:4; signed:0;
> > field:unsigned int fc_ineligible_rc[EXT4_FC_REASON_MAX]; offset:12; size:36; signed:0;
>
> Bah, the above tells us how many items, and the TRACE_DEFINE_ENUM() doesn't
> modify this part of the file.
Then shall I just define TRACE_DEFINE_ENUM(EXT4_FC_REASON_MAX) in this patch.
Would that be the correct approach? Like how we have defined other enums.
We haven't yet defined EXT4_FC_REASON_MAX in current patch.
(as I saw it doesn't affect TP_STRUCT__entry())
>
> I could update it to do so though.
Please let me know if you have any patch for me to try.
Thanks
-ritesh
>
> -- Steve
>
>
> > field:unsigned long fc_commits; offset:48; size:8; signed:0;
> > field:unsigned long fc_ineligible_commits; offset:56; size:8; signed:0;
> > field:unsigned long fc_numblks; offset:64; size:8; signed:0;
>
next prev parent reply other threads:[~2022-03-11 3:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-10 15:58 [PATCHv2 00/10] ext4: Improve FC trace events Ritesh Harjani
2022-03-10 15:58 ` [PATCHv2 01/10] ext4: Remove unused enum EXT4_FC_COMMIT_FAILED Ritesh Harjani
2022-03-10 15:58 ` [PATCHv2 02/10] ext4: Fix ext4_fc_stats trace point Ritesh Harjani
2022-03-10 15:58 ` [PATCHv2 03/10] ext4: Convert ext4_fc_track_dentry type events to use event class Ritesh Harjani
2022-03-10 15:58 ` [PATCHv2 04/10] ext4: Do not call FC trace event in ext4_fc_commit() if FS does not support FC Ritesh Harjani
2022-03-10 15:58 ` [PATCHv2 05/10] ext4: Return early for non-eligible fast_commit track events Ritesh Harjani
2022-03-10 15:59 ` [PATCHv2 06/10] ext4: Add new trace event in ext4_fc_cleanup Ritesh Harjani
2022-03-10 15:59 ` [PATCHv2 07/10] ext4: Add transaction tid info in fc_track events Ritesh Harjani
2022-03-10 15:59 ` [PATCHv2 08/10] ext4: Add commit_tid info in jbd debug log Ritesh Harjani
2022-03-10 15:59 ` [PATCHv2 09/10] ext4: Add commit tid info in ext4_fc_commit_start/stop trace events Ritesh Harjani
2022-03-10 15:59 ` [PATCHv2 10/10] ext4: Fix remaining two trace events to use same printk convention Ritesh Harjani
2022-03-10 16:05 ` [PATCHv2 00/10] ext4: Improve FC trace events Steven Rostedt
2022-03-10 17:07 ` Ritesh Harjani
2022-03-11 0:39 ` Steven Rostedt
2022-03-11 2:19 ` Ritesh Harjani
2022-03-11 2:33 ` Steven Rostedt
2022-03-11 3:14 ` Ritesh Harjani [this message]
2022-03-11 4:32 ` Steven Rostedt
2022-03-11 5:12 ` Ritesh Harjani
2022-03-11 14:45 ` Steven Rostedt
2022-03-11 15:03 ` Ritesh Harjani
2022-03-11 16:42 ` Steven Rostedt
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