linux-kernel - Re: [PATCH v4 00/16] block: add blktrace support for zoned block devies

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Message-ID: <yq14irt6lfk.fsf@ca-mkp.ca.oracle.com>
Date: Mon, 20 Oct 2025 22:25:23 -0400
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: Johannes Thumshirn <johannes.thumshirn@....com>
Cc: axboe@...nel.dk, chaitanyak@...dia.com, dlemoal@...nel.org, hare@...e.de,
        hch@....de, john.g.garry@...cle.com, linux-block@...r.kernel.org,
        linux-btrace@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-trace-kernel@...r.kernel.org, martin.petersen@...cle.com,
        mathieu.desnoyers@...icios.com, mhiramat@...nel.org,
        naohiro.aota@....com, rostedt@...dmis.org, shinichiro.kawasaki@....com
Subject: Re: [PATCH v4 00/16]  block: add blktrace support for zoned block
 devies


Johannes,

> This patch series extends the kernel blktrace infrastructure to
> support tracing zoned block device commands. Zoned block devices
> (e.g., ZAC/ZBC and ZNS) introduce command types such as zone open,
> close, reset, finish, and zone append. These are currently not visible
> in blktrace, making it difficult to debug and analyze I/O workloads on
> zoned devices.

Looks OK to me.

Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com>

-- 
Martin K. Petersen