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From: Bagas Sanjaya <bagasdotme@gmail.com>
To: Rongwei Wang <rongwei.wang@linux.alibaba.com>, akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-stable@vger.kernel.org
Subject: Re: [PATCH] mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()
Date: Sun, 2 Apr 2023 20:37:23 +0700	[thread overview]
Message-ID: <ZCmFExoOsho9pt+Q@debian.me> (raw)
In-Reply-To: <20230401221920.57986-1-rongwei.wang@linux.alibaba.com>

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On Sun, Apr 02, 2023 at 06:19:20AM +0800, Rongwei Wang wrote:
> Without this modification, a core will wait (mostly)
"Currently, a core will ..."

> But, a worse consequence, panic also can be caused by
"However, in the worst case, ..."

> In this patch, we lock p->lock before calling
"Lock p->lock before calling ..."

> We also find this problem exists in stable 5.10.

So, you claim that 5.15.y and 6.1.y aren't affected, right?

Also, Cc: stable@vger.kernel.org on the SoB area (as pointed by kernel
test robot [1].

Thanks.

[1]: https://lore.kernel.org/stable/ZCiuGEkyk%2F1Afisk@ec83ac1404bb/
 
-- 
An old man doll... just what I always wanted! - Clara

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  parent reply	other threads:[~2023-04-02 13:37 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-01 22:19 [PATCH] mm/swap: fix swap_info_struct race between swapoff and get_swap_pages() Rongwei Wang
2023-04-01 22:20 ` kernel test robot
2023-04-02 13:37 ` Bagas Sanjaya [this message]
2023-04-02 14:56   ` Rongwei Wang
2023-04-03  4:10 ` Matthew Wilcox
2023-04-03  8:02   ` Rongwei Wang
2023-04-04 15:47 ` [PATCH v2] " Rongwei Wang
2023-04-04 16:08   ` Rongwei Wang
2023-04-06 12:12     ` Aaron Lu
2023-04-06 12:55       ` Rongwei Wang
2023-04-04 19:26   ` Andrew Morton
2023-04-05  6:49     ` Rongwei Wang
2023-04-06  6:58     ` Aaron Lu
2023-04-06 12:20       ` Rongwei Wang
2023-04-06 14:04   ` Aaron Lu
2023-04-06 14:57     ` Aaron Lu
2023-04-07  2:20       ` Rongwei Wang

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