linux-kernel - Re: [PATCH] f2fs: init discard policy after thread wakeup

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Message-Id: <20221123160625.9309-1-frank.li@vivo.com>
Date:   Thu, 24 Nov 2022 00:06:25 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     jaegeuk@...nel.org, chao@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] f2fs: init discard policy after thread wakeup

HI Chao,
>>		set_freezable();
>>   
>>		do {
>
>		if (!atomic_read(&dcc->discard_cmd_cnt))
>		       wait_ms = dpolicy.max_interval;

dpolicy has not been initialized for the first time, and the value in the stack is unstable.

Thx,
Yangtao