linux-kernel - Re: [PATCH v2 14/15] blktrace: trace zone write plugging operations

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Message-ID: <5604e09f-f34b-45f0-ac1a-c96acb5fd994@kernel.org>
Date: Wed, 1 Oct 2025 16:31:45 +0900
From: Damien Le Moal <dlemoal@...nel.org>
To: Johannes Thumshirn <johannes.thumshirn@....com>,
 Jens Axboe <axboe@...nel.dk>
Cc: Steven Rostedt <rostedt@...dmis.org>,
 Masami Hiramatsu <mhiramat@...nel.org>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org, linux-btrace@...r.kernel.org,
 John Garry <john.g.garry@...cle.com>, Hannes Reinecke <hare@...e.de>,
 Christoph Hellwig <hch@....de>, Naohiro Aota <naohiro.aota@....com>,
 Shinichiro Kawasaki <shinichiro.kawasaki@....com>,
 Chaitanya Kulkarni <chaitanyak@...dia.com>,
 "Martin K . Petersen" <martin.petersen@...cle.com>
Subject: Re: [PATCH v2 14/15] blktrace: trace zone write plugging operations

On 9/26/25 00:02, Johannes Thumshirn wrote:
> Trace zone write plugging operations on block devices.
> 
> As tracing of zoned block commands needs the upper 32bit of the widened
> 64bit action, only add traces to blktrace if user-space has requested
> version 2 of the blktrace protocol.
> 
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>

Reviewed-by: Damien Le Moal <dlemoal@...nel.org>

-- 
Damien Le Moal
Western Digital Research