linux-kernel - Re: [v8 PATCH] block: introduce block_rq

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Message-Id: <164459883724.122482.1096803254957441815.b4-ty@kernel.dk>
Date:   Fri, 11 Feb 2022 10:00:37 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     rostedt@...dmis.org, Yang Shi <shy828301@...il.com>,
        xiyou.wangcong@...il.com, kch@...dia.com, hch@...radead.org
Cc:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: Re: [v8 PATCH] block: introduce block_rq_error tracepoint

On Thu, 10 Feb 2022 14:52:22 -0800, Yang Shi wrote:
> Currently, rasdaemon uses the existing tracepoint block_rq_complete
> and filters out non-error cases in order to capture block disk errors.
> 
> But there are a few problems with this approach:
> 
> 1. Even kernel trace filter could do the filtering work, there is
>    still some overhead after we enable this tracepoint.
> 
> [...]

Applied, thanks!

[1/1] block: introduce block_rq_error tracepoint
      commit: d5869fdc189f0f12a954a48d58a48104a2f5d044

Best regards,
-- 
Jens Axboe