From: Andrew Morton <akpm@linux-foundation.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Theodore Ts'o <tytso@mit.edu>,
Roman Gushchin <roman.gushchin@linux.dev>,
Kirill Tkhai <tkhai@ya.ru>,
vbabka@suse.cz, viro@zeniv.linux.org.uk, brauner@kernel.org,
djwong@kernel.org, hughd@google.com, paulmck@kernel.org,
muchun.song@linux.dev, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-kernel@vger.kernel.org, zhengqi.arch@bytedance.com
Subject: Re: [PATCH v2 3/3] fs: Use delayed shrinker unregistration
Date: Thu, 8 Jun 2023 17:27:22 -0700 [thread overview]
Message-ID: <20230608172722.d32733db433d385daa6c11a0@linux-foundation.org> (raw)
In-Reply-To: <ZIJhou1d55d4H1s0@dread.disaster.area>
On Fri, 9 Jun 2023 09:17:54 +1000 Dave Chinner <david@fromorbit.com> wrote:
> > Given that we're at -rc5 now, and the file system folks didn't get
> > consulted until fairly late in the progress, and the fact that this
> > may cause use-after-free problems that could lead to security issues,
> > perhaps we shoould consider reverting the SRCU changeover now, and try
> > again for the next merge window?
>
> Yes, please, because I think we can fix this in a much better way
> and make things a whole lot simpler at the same time.
Qi Zheng, if agreeable could you please prepare and send reverts of
475733dda5a ("mm: vmscan: add shrinker_srcu_generation") and of
f95bdb700bc6bb74 ("mm: vmscan: make global slab shrink lockless")?
Thanks.
next prev parent reply other threads:[~2023-06-09 0:27 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-05 19:02 [PATCH v2 0/3] mm: Make unregistration of super_block shrinker more faster Kirill Tkhai
2023-06-05 19:03 ` [PATCH v2 1/3] mm: vmscan: move shrinker_debugfs_remove() before synchronize_srcu() Kirill Tkhai
2023-06-06 0:31 ` Roman Gushchin
2023-06-05 19:03 ` [PATCH v2 2/3] mm: Split unregister_shrinker() in fast and slow part Kirill Tkhai
2023-06-07 4:49 ` kernel test robot
2023-06-07 7:33 ` Yujie Liu
2023-06-05 19:03 ` [PATCH v2 3/3] fs: Use delayed shrinker unregistration Kirill Tkhai
2023-06-06 0:38 ` Roman Gushchin
2023-06-06 1:24 ` Dave Chinner
2023-06-06 2:56 ` Roman Gushchin
2023-06-06 6:51 ` Dave Chinner
2023-06-06 15:56 ` Roman Gushchin
2023-06-06 21:21 ` Kirill Tkhai
2023-06-06 22:30 ` Dave Chinner
2023-06-08 16:36 ` Theodore Ts'o
2023-06-08 23:17 ` Dave Chinner
2023-06-09 0:27 ` Andrew Morton [this message]
2023-06-09 2:50 ` Qi Zheng
2023-06-05 22:32 ` [PATCH v2 0/3] mm: Make unregistration of super_block shrinker more faster Dave Chinner
2023-06-06 21:06 ` Kirill Tkhai
2023-06-06 22:02 ` Dave Chinner
2023-06-07 2:51 ` Qi Zheng
2023-06-08 21:58 ` Dave Chinner
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