linux-kernel - Re: [PATCH v2 07/15] blktrace: add definitions for blk_user_trace

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Message-ID: <f06f85a6-60a0-445a-8728-f8f37a28b5b5@kernel.org>
Date: Wed, 1 Oct 2025 15:27:38 +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 07/15] blktrace: add definitions for
 blk_user_trace_setup2

On 9/26/25 00:02, Johannes Thumshirn wrote:
> Add definitions for a version 2 of the blk_user_trace_setup ioctl. This
> new will enable a different struct layout of the binary data passed to

/s/This new/This new ioctl ?

> user-space when using a new version of the blktrace utility requesting the
> new struct layout.
> 
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>

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

-- 
Damien Le Moal
Western Digital Research