From: Michal Hocko <mhocko@suse.com>
To: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: linux-mm@kvack.org, cgroups@vger.kernel.org,
Johannes Weiner <hannes@cmpxchg.org>,
Vladimir Davydov <vdavydov.dev@gmail.com>
Subject: Re: [PATCH v3 00/18] Folio conversion of memcg
Date: Wed, 30 Jun 2021 10:44:34 +0200 [thread overview]
Message-ID: <YNwu8qCRpEFNDxRl@dhcp22.suse.cz> (raw)
In-Reply-To: <20210630040034.1155892-1-willy@infradead.org>
On Wed 30-06-21 05:00:16, Matthew Wilcox wrote:
> After Michel's comments on "Folio-enabling the page cache", I thought it
> best to split out the memcg patches from the rest of the page cache folio
> patches and redo them to focus on correctness (ie always passing a folio).
>
> This is fundamentally for review rather than application. I've rebased
> on Linus' current tree, which includes the recent patchbomb from akpm.
> That upstream version won't boot on any system I have available, and I'm
> not comfortable asking for patches to be applied unless I can actually
> try them. That said, these patches were fine on top of 5.13.
>
> There are still a few functions which take pages, but they rely on other
> conversions happening first, which in turn rely on this set of patches,
> so I think this is a good place to stop, with the understanding that
> there will be more patches later.
Thanks for considering the last review feedback. After looking at this
pile the conversion is really straightforward and reasonably easy to
review. There are still some cases where you opted to go with
compatibility wrappers and I would still like to avoid those as it
somehow obfuscates the conversion IMHO. As I've said previously, though,
I do understand that this a tedious work so I do not want to make it
more annoying unnecessarily for you. The replacement with page_folio for
the replaced API looks better to me. If you have strong reasons (e.g.
due to dependencies etc.) please make it explicit in the respective
changelogs.
Thanks!
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2021-06-30 8:44 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-30 4:00 Matthew Wilcox (Oracle)
2021-06-30 4:00 ` [PATCH v3 01/18] mm: Add folio_nid() Matthew Wilcox (Oracle)
2021-07-01 6:56 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 02/18] mm/memcg: Remove 'page' parameter to mem_cgroup_charge_statistics() Matthew Wilcox (Oracle)
2021-06-30 14:17 ` Johannes Weiner
2021-06-30 4:00 ` [PATCH v3 03/18] mm/memcg: Use the node id in mem_cgroup_update_tree() Matthew Wilcox (Oracle)
2021-06-30 6:55 ` Michal Hocko
2021-06-30 14:18 ` Johannes Weiner
2021-07-01 6:57 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 04/18] mm/memcg: Remove soft_limit_tree_node() Matthew Wilcox (Oracle)
2021-06-30 6:56 ` Michal Hocko
2021-06-30 14:19 ` Johannes Weiner
2021-07-01 7:09 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 05/18] mm/memcg: Convert memcg_check_events to take a node ID Matthew Wilcox (Oracle)
2021-06-30 6:58 ` Michal Hocko
2021-06-30 6:59 ` Michal Hocko
2021-07-01 7:09 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 06/18] mm/memcg: Add folio_memcg() and related functions Matthew Wilcox (Oracle)
2021-06-30 6:53 ` kernel test robot
2021-07-01 7:12 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 07/18] mm/memcg: Convert commit_charge() to take a folio Matthew Wilcox (Oracle)
2021-06-30 4:00 ` [PATCH v3 08/18] mm/memcg: Convert mem_cgroup_charge() " Matthew Wilcox (Oracle)
2021-06-30 7:17 ` kernel test robot
2021-07-01 7:13 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 09/18] mm/memcg: Convert uncharge_page() to uncharge_folio() Matthew Wilcox (Oracle)
2021-07-01 7:15 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 10/18] mm/memcg: Convert mem_cgroup_uncharge() to take a folio Matthew Wilcox (Oracle)
2021-06-30 8:46 ` kernel test robot
2021-07-01 7:17 ` Christoph Hellwig
2021-07-07 12:09 ` Matthew Wilcox
2021-06-30 4:00 ` [PATCH v3 11/18] mm/memcg: Convert mem_cgroup_migrate() to take folios Matthew Wilcox (Oracle)
2021-07-01 7:20 ` Christoph Hellwig
2021-06-30 4:00 ` [PATCH v3 12/18] mm/memcg: Convert mem_cgroup_track_foreign_dirty_slowpath() to folio Matthew Wilcox (Oracle)
2021-06-30 4:00 ` [PATCH v3 13/18] mm/memcg: Add folio_memcg_lock() and folio_memcg_unlock() Matthew Wilcox (Oracle)
2021-06-30 8:32 ` Michal Hocko
2021-07-07 15:10 ` Matthew Wilcox
2021-07-08 7:28 ` Michal Hocko
2021-07-07 17:08 ` Johannes Weiner
2021-07-07 19:28 ` Matthew Wilcox
2021-07-07 20:41 ` Johannes Weiner
2021-07-09 19:37 ` Matthew Wilcox
2021-06-30 4:00 ` [PATCH v3 14/18] mm/memcg: Convert mem_cgroup_move_account() to use a folio Matthew Wilcox (Oracle)
2021-06-30 8:30 ` Michal Hocko
2021-06-30 11:22 ` Matthew Wilcox
2021-06-30 12:20 ` Michal Hocko
2021-06-30 12:31 ` Matthew Wilcox
2021-06-30 12:45 ` Michal Hocko
2021-07-07 15:25 ` Matthew Wilcox
2021-07-08 7:30 ` Michal Hocko
2021-06-30 4:00 ` [PATCH v3 15/18] mm/memcg: Add mem_cgroup_folio_lruvec() Matthew Wilcox (Oracle)
2021-06-30 8:12 ` kernel test robot
2021-06-30 19:18 ` Matthew Wilcox
2021-06-30 21:21 ` Johannes Weiner
2021-06-30 4:00 ` [PATCH v3 16/18] mm/memcg: Add folio_lruvec_lock() and similar functions Matthew Wilcox (Oracle)
2021-06-30 8:36 ` Michal Hocko
2021-06-30 4:00 ` [PATCH v3 17/18] mm/memcg: Add folio_lruvec_relock_irq() and folio_lruvec_relock_irqsave() Matthew Wilcox (Oracle)
2021-06-30 8:39 ` Michal Hocko
2021-06-30 4:00 ` [PATCH v3 18/18] mm/workingset: Convert workingset_activation to take a folio Matthew Wilcox (Oracle)
2021-06-30 8:44 ` Michal Hocko [this message]
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