From: Bean Huo <huobean@gmail.com>
To: Adrian Hunter <adrian.hunter@intel.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
"James E . J . Bottomley" <jejb@linux.ibm.com>
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
Alim Akhtar <alim.akhtar@samsung.com>,
Avri Altman <avri.altman@wdc.com>, Can Guo <cang@codeaurora.org>,
Stanley Chu <stanley.chu@mediatek.com>
Subject: Re: [PATCH V2 4/4] scsi: ufs-debugfs: Add user-defined exception event rate limiting
Date: Mon, 15 Feb 2021 18:10:39 +0100 [thread overview]
Message-ID: <d00dacbd2a1b57dfdecd184303ab2bee47f3d7f9.camel@gmail.com> (raw)
In-Reply-To: <20210209062437.6954-5-adrian.hunter@intel.com>
On Tue, 2021-02-09 at 08:24 +0200, Adrian Hunter wrote:
> An enabled user-specified exception event that does not clear quickly
> will
> repeatedly cause the handler to run. That could unduly disturb the
> driver
> behaviour being tested or debugged. To prevent that add debugfs file
> exception_event_rate_limit_ms. When a exception event happens, it is
> disabled, and then after a period of time (default 20ms) the
> exception
> event is enabled again.
>
> Note that if the driver also has that exception event enabled, it
> will not
> be disabled.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Bean Huo <beanhuo@micron.com>
next prev parent reply other threads:[~2021-02-15 17:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 6:24 [PATCH V2 0/4] scsi: ufs-debugfs: Add UFS Exception Event reporting Adrian Hunter
2021-02-09 6:24 ` [PATCH V2 1/4] scsi: ufs: Add exception event tracepoint Adrian Hunter
2021-02-10 18:09 ` Avri Altman
2021-02-14 10:47 ` Bean Huo
2021-02-09 6:24 ` [PATCH V2 2/4] scsi: ufs: Add exception event definitions Adrian Hunter
2021-02-09 6:24 ` [PATCH V2 3/4] scsi: ufs-debugfs: Add user-defined exception_event_mask Adrian Hunter
2021-02-15 17:10 ` Bean Huo
2021-02-09 6:24 ` [PATCH V2 4/4] scsi: ufs-debugfs: Add user-defined exception event rate limiting Adrian Hunter
2021-02-15 17:10 ` Bean Huo [this message]
2021-03-04 4:15 ` [PATCH V2 0/4] scsi: ufs-debugfs: Add UFS Exception Event reporting Martin K. Petersen
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