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From: Chao Yu <yuchao0@huawei.com>
To: Sahitya Tummala <stummala@codeaurora.org>,
	Jaegeuk Kim <jaegeuk@kernel.org>,
	<linux-f2fs-devel@lists.sourceforge.net>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5] f2fs: fix long latency due to discard during umount
Date: Thu, 16 Apr 2020 14:10:20 +0800	[thread overview]
Message-ID: <dc729e46-5ab6-ca34-4d46-e0d0c38b8cb6@huawei.com> (raw)
In-Reply-To: <1586941673-4296-1-git-send-email-stummala@codeaurora.org>

On 2020/4/15 17:07, Sahitya Tummala wrote:
> F2FS already has a default timeout of 5 secs for discards that
> can be issued during umount, but it can take more than the 5 sec
> timeout if the underlying UFS device queue is already full and there
> are no more available free tags to be used. Fix this by submitting a
> small batch of discard requests so that it won't cause the device
> queue to be full at any time and thus doesn't incur its wait time
> in the umount context.
> 
> Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>

Reviewed-by: Chao Yu <yuchao0@huawei.com>

Thanks,

      reply	other threads:[~2020-04-16  6:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-15  9:07 Sahitya Tummala
2020-04-16  6:10 ` Chao Yu [this message]

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