linux-kernel - Re: [PATCH] modules: wait do_free

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Message-Id: <20231219125151.4a042a259edf3c916580ccfe@linux-foundation.org>
Date: Tue, 19 Dec 2023 12:51:51 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Changbin Du <changbin.du@...wei.com>
Cc: Luis Chamberlain <mcgrof@...nel.org>, <linux-modules@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>, Hui Wang <hw.huiwang@...wei.com>, Xiaoyi Su
 <suxiaoyi@...wei.com>
Subject: Re: [PATCH] modules: wait do_free_init correctly

On Tue, 19 Dec 2023 22:12:31 +0800 Changbin Du <changbin.du@...wei.com> wrote:

> The commit 1a7b7d922081 ("modules: Use vmalloc special flag") moves
> do_free_init() into a global workqueue instead of call_rcu(). So now
> we should wait it via flush_work().

What are the runtime effects of this change?