From: Damien Le Moal <dlemoal@kernel.org>
To: Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
Jens Axboe <axboe@kernel.dk>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-trace-kernel@vger.kernel.org"
<linux-trace-kernel@vger.kernel.org>,
"linux-btrace@vger.kernel.org" <linux-btrace@vger.kernel.org>,
John Garry <john.g.garry@oracle.com>,
Hannes Reinecke <hare@suse.de>, hch <hch@lst.de>,
Naohiro Aota <Naohiro.Aota@wdc.com>,
Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>,
Chaitanya Kulkarni <chaitanyak@nvidia.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>
Subject: Re: [PATCH v2 13/15] blktrace: trace zone management operations
Date: Thu, 9 Oct 2025 07:41:22 +0900 [thread overview]
Message-ID: <45f8532e-5aa2-4b32-ae53-bdf588133a3e@kernel.org> (raw)
In-Reply-To: <057c7e5f-6079-4451-829d-40c73c88fb60@wdc.com>
On 10/8/25 22:29, Johannes Thumshirn wrote:
> I'm not sure if it makes sense to do completion tracing here. At least
> we cannot do it in the endio handler as usual.
>
> One thing to get the error and the duration would be the following:
>
> int blkdev_zone_mgmt(struct block_device *bdev, enum req_op op,
> sector_t sector, sector_t nr_sectors)
> {
>
> /* [...] */
>
> trace_blkdev_zone_mgmt(bio, nr_sectors);
> ret = submit_bio_wait(bio);
>
> + trace_blkdev_zone_mgmt_completion(bio, nr_sectors, bio->bi_error);
> bio_put(bio);
That does seem OK to me. Maybe try and see how it looks ?
Though the request alloc, insert, dispatch and completion for this BIO will
still be traced, right ? If these events show correctly that this is a zone
management command (and which one it is), then we should not need the above.
--
Damien Le Moal
Western Digital Research
next prev parent reply other threads:[~2025-10-08 22:41 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-25 15:02 [PATCH v2 00/15] block: add blktrace support for zoned block device commands Johannes Thumshirn
2025-09-25 15:02 ` [PATCH v2 01/15] blktrace: only calculate trace length once Johannes Thumshirn
2025-10-01 6:12 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 02/15] blktrace: factor out recording a blktrace event Johannes Thumshirn
2025-10-01 6:14 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 03/15] blktrace: split out relaying " Johannes Thumshirn
2025-10-01 6:19 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 04/15] blktrace: untangle if/else sequence in __blk_add_trace Johannes Thumshirn
2025-10-01 6:19 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 05/15] blktrace: change the internal action to 64bit Johannes Thumshirn
2025-10-01 6:21 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 06/15] blktrace: split do_blk_trace_setup into two functions Johannes Thumshirn
2025-10-01 6:25 ` Damien Le Moal
2025-10-03 7:27 ` Christoph Hellwig
2025-09-25 15:02 ` [PATCH v2 07/15] blktrace: add definitions for blk_user_trace_setup2 Johannes Thumshirn
2025-10-01 6:27 ` Damien Le Moal
2025-10-03 7:29 ` Christoph Hellwig
2025-09-25 15:02 ` [PATCH v2 08/15] blktrace: pass blk_user_trace2 to setup functions Johannes Thumshirn
2025-10-01 6:34 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 09/15] blktrace: add definitions for struct blk_io_trace2 Johannes Thumshirn
2025-10-01 6:37 ` Damien Le Moal
2025-10-03 7:31 ` Christoph Hellwig
2025-09-25 15:02 ` [PATCH v2 10/15] blktrace: differentiate between blk_io_trace versions Johannes Thumshirn
2025-10-01 7:21 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 11/15] blktrace: add block trace commands for zone operations Johannes Thumshirn
2025-10-01 7:23 ` Damien Le Moal
2025-10-03 7:32 ` Christoph Hellwig
2025-10-07 13:08 ` Johannes Thumshirn
2025-10-08 6:14 ` hch
2025-10-08 6:16 ` Johannes Thumshirn
2025-10-09 11:17 ` Johannes Thumshirn
2025-10-10 7:32 ` hch
2025-09-25 15:02 ` [PATCH v2 12/15] blktrace: expose ZONE APPEND completions to blktrace Johannes Thumshirn
2025-10-01 7:28 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 13/15] blktrace: trace zone management operations Johannes Thumshirn
2025-10-01 7:30 ` Damien Le Moal
2025-10-08 13:29 ` Johannes Thumshirn
2025-10-08 22:41 ` Damien Le Moal [this message]
2025-10-09 9:57 ` Johannes Thumshirn
2025-09-25 15:02 ` [PATCH v2 14/15] blktrace: trace zone write plugging operations Johannes Thumshirn
2025-10-01 7:31 ` Damien Le Moal
2025-09-25 15:02 ` [PATCH v2 15/15] blktrace: handle BLKTRACESETUP2 ioctl Johannes Thumshirn
2025-10-01 7:35 ` Damien Le Moal
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