From: Shakeel Butt <shakeel.butt@linux.dev>
To: David Hildenbrand <david@redhat.com>
Cc: Zi Yan <ziy@nvidia.com>,
Bernd Schubert <bernd.schubert@fastmail.fm>,
Joanne Koong <joannelkoong@gmail.com>,
miklos@szeredi.hu, linux-fsdevel@vger.kernel.org,
jefflexu@linux.alibaba.com, josef@toxicpanda.com,
linux-mm@kvack.org, kernel-team@meta.com,
Matthew Wilcox <willy@infradead.org>,
Oscar Salvador <osalvador@suse.de>,
Michal Hocko <mhocko@kernel.org>
Subject: Re: [PATCH v6 4/5] mm/migrate: skip migrating folios under writeback with AS_WRITEBACK_INDETERMINATE mappings
Date: Thu, 19 Dec 2024 08:53:04 -0800 [thread overview]
Message-ID: <azx4lwcvcfkh37e36sdp22x7ixthgviuplb2ecb3zzjndys4ao@gmtbq2zyhhp3> (raw)
In-Reply-To: <4104f64a-09c3-4f20-8e1a-5f4547fdcb25@redhat.com>
On Thu, Dec 19, 2024 at 05:31:14PM +0100, David Hildenbrand wrote:
[...]
> > I think this whole concern of fuse making system memory unmovable
> > forever is overblown. Fuse is already using a temp (unmovable) page
>
> Right, and we allocated in a way that we expect it to not be movable (e.g.,
> not on ZONE_MOVABLE, usually in a UNMOVABLE pageblock etc).
>
> As another question, which effect does this change here have on
> folio_wait_writeback() users like arch/s390/kernel/uv.c or
> shrink_folio_list()?
>
shrink_folio_list() is handled in second patch [1] of this series. To
summarize only memcg-v1 which does not have sane dirty throttling can be
impacted and needs change. For arch/s390/kernel/uv.c, I don't think this
series is doing anything. For sane fuse folios, things should be fine.
[1] https://lore.kernel.org/linux-mm/CAJnrk1bXDkwExR=ztnidX4DAvVD5wZZemEVNt9bg=tkwWAg6fw@mail.gmail.com/T/#m02461fb4fb73849900e811d695deee0706c370f9
next prev parent reply other threads:[~2024-12-19 16:53 UTC|newest]
Thread overview: 124+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-22 23:23 [PATCH v6 0/5] fuse: remove temp page copies in writeback Joanne Koong
2024-11-22 23:23 ` [PATCH v6 1/5] mm: add AS_WRITEBACK_INDETERMINATE mapping flag Joanne Koong
2024-11-22 23:23 ` [PATCH v6 2/5] mm: skip reclaiming folios in legacy memcg writeback indeterminate contexts Joanne Koong
2024-11-22 23:23 ` [PATCH v6 3/5] fs/writeback: in wait_sb_inodes(), skip wait for AS_WRITEBACK_INDETERMINATE mappings Joanne Koong
2024-11-22 23:23 ` [PATCH v6 4/5] mm/migrate: skip migrating folios under writeback with " Joanne Koong
2024-12-19 13:05 ` David Hildenbrand
2024-12-19 14:19 ` Zi Yan
2024-12-19 15:08 ` Zi Yan
2024-12-19 15:39 ` David Hildenbrand
2024-12-19 15:47 ` Zi Yan
2024-12-19 15:50 ` David Hildenbrand
2024-12-19 15:43 ` Shakeel Butt
2024-12-19 15:47 ` David Hildenbrand
2024-12-19 15:53 ` Shakeel Butt
2024-12-19 15:55 ` Zi Yan
2024-12-19 15:56 ` Bernd Schubert
2024-12-19 16:00 ` Zi Yan
2024-12-19 16:02 ` Zi Yan
2024-12-19 16:09 ` Bernd Schubert
2024-12-19 16:14 ` Zi Yan
2024-12-19 16:26 ` Shakeel Butt
2024-12-19 16:31 ` David Hildenbrand
2024-12-19 16:53 ` Shakeel Butt [this message]
2024-12-19 16:22 ` Shakeel Butt
2024-12-19 16:29 ` David Hildenbrand
2024-12-19 16:40 ` Shakeel Butt
2024-12-19 16:41 ` David Hildenbrand
2024-12-19 17:14 ` Shakeel Butt
2024-12-19 17:26 ` David Hildenbrand
2024-12-19 17:30 ` Bernd Schubert
2024-12-19 17:37 ` Shakeel Butt
2024-12-19 17:40 ` Bernd Schubert
2024-12-19 17:44 ` Joanne Koong
2024-12-19 17:54 ` Shakeel Butt
2024-12-20 11:44 ` David Hildenbrand
2024-12-20 12:15 ` Bernd Schubert
2024-12-20 14:49 ` David Hildenbrand
2024-12-20 15:26 ` Bernd Schubert
2024-12-20 18:01 ` Shakeel Butt
2024-12-21 2:28 ` Jingbo Xu
2024-12-21 16:23 ` David Hildenbrand
2024-12-22 2:47 ` Jingbo Xu
2024-12-24 11:32 ` David Hildenbrand
2024-12-21 16:18 ` David Hildenbrand
2024-12-23 22:14 ` Shakeel Butt
2024-12-24 12:37 ` David Hildenbrand
2024-12-26 15:11 ` Zi Yan
2024-12-26 20:13 ` Shakeel Butt
2024-12-26 22:02 ` Bernd Schubert
2024-12-27 20:08 ` Joanne Koong
2024-12-27 20:32 ` Bernd Schubert
2024-12-30 17:52 ` Joanne Koong
2024-12-30 10:16 ` David Hildenbrand
2024-12-30 18:38 ` Joanne Koong
2024-12-30 19:52 ` David Hildenbrand
2024-12-30 20:11 ` Shakeel Butt
2025-01-02 18:54 ` Joanne Koong
2025-01-03 20:31 ` David Hildenbrand
2025-01-06 10:19 ` Miklos Szeredi
2025-01-06 18:17 ` Shakeel Butt
2025-01-07 8:34 ` David Hildenbrand
2025-01-07 18:07 ` Shakeel Butt
2025-01-09 11:22 ` David Hildenbrand
2025-01-10 20:28 ` Jeff Layton
2025-01-10 21:13 ` David Hildenbrand
2025-01-10 22:00 ` Shakeel Butt
2025-01-13 15:27 ` David Hildenbrand
2025-01-13 21:44 ` Jeff Layton
2025-01-14 8:38 ` Miklos Szeredi
2025-01-14 9:40 ` Miklos Szeredi
2025-01-14 9:55 ` Bernd Schubert
2025-01-14 10:07 ` Miklos Szeredi
2025-01-14 18:07 ` Joanne Koong
2025-01-14 18:58 ` Miklos Szeredi
2025-01-14 19:12 ` Joanne Koong
2025-01-14 20:00 ` Miklos Szeredi
2025-01-14 20:29 ` Jeff Layton
2025-01-14 21:40 ` Bernd Schubert
2025-01-23 16:06 ` Pavel Begunkov
2025-01-14 20:51 ` Joanne Koong
2025-01-24 12:25 ` David Hildenbrand
2025-01-14 15:49 ` Jeff Layton
2025-01-24 12:29 ` David Hildenbrand
2025-01-28 10:16 ` Miklos Szeredi
2025-01-14 15:44 ` Jeff Layton
2025-01-14 18:58 ` Joanne Koong
2025-01-10 23:11 ` Jeff Layton
2025-01-10 20:16 ` Jeff Layton
2025-01-10 20:20 ` David Hildenbrand
2025-01-10 20:43 ` Jeff Layton
2025-01-10 21:00 ` David Hildenbrand
2025-01-10 21:07 ` Jeff Layton
2025-01-10 21:21 ` David Hildenbrand
2025-01-07 16:15 ` Miklos Szeredi
2025-01-08 1:40 ` Jingbo Xu
2024-12-30 20:04 ` Shakeel Butt
2025-01-02 19:59 ` Joanne Koong
2025-01-02 20:26 ` Zi Yan
2024-12-20 21:01 ` Joanne Koong
2024-12-21 16:25 ` David Hildenbrand
2024-12-21 21:59 ` Bernd Schubert
2024-12-23 19:00 ` Joanne Koong
2024-12-26 22:44 ` Bernd Schubert
2024-12-27 18:25 ` Joanne Koong
2024-12-19 17:55 ` Joanne Koong
2024-12-19 18:04 ` Bernd Schubert
2024-12-19 18:11 ` Shakeel Butt
2024-12-20 7:55 ` Jingbo Xu
2025-04-02 21:34 ` Joanne Koong
2025-04-03 3:31 ` Jingbo Xu
2025-04-03 9:18 ` David Hildenbrand
2025-04-03 9:25 ` Bernd Schubert
2025-04-03 9:35 ` Christian Brauner
2025-04-03 19:09 ` Joanne Koong
2025-04-03 20:44 ` David Hildenbrand
2025-04-03 22:04 ` Joanne Koong
2024-11-22 23:23 ` [PATCH v6 5/5] fuse: remove tmp folio for writebacks and internal rb tree Joanne Koong
2024-11-25 9:46 ` Jingbo Xu
2024-12-12 21:55 ` [PATCH v6 0/5] fuse: remove temp page copies in writeback Joanne Koong
2024-12-13 11:52 ` Miklos Szeredi
2024-12-13 16:47 ` Shakeel Butt
2024-12-18 17:37 ` Joanne Koong
2024-12-18 17:44 ` Shakeel Butt
2024-12-18 17:53 ` Joanne Koong
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