From: Johannes Weiner <hannes@cmpxchg.org>
To: Zhiguo Jiang <justinjiang@vivo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@redhat.com>,
Matthew Wilcox <willy@infradead.org>,
Chris Li <chrisl@kernel.org>, Michal Hocko <mhocko@suse.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
Dan Schatzberg <schatzberg.dan@gmail.com>,
Yosry Ahmed <yosryahmed@google.com>,
Yue Zhao <findns94@gmail.com>, Hugh Dickins <hughd@google.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
opensource.kernel@vivo.com
Subject: Re: [PATCH v1 2/2] mm:vmscan: fix shrink sc parameters issue
Date: Thu, 11 Jan 2024 08:43:38 -0500 [thread overview]
Message-ID: <20240111134338.GB390292@cmpxchg.org> (raw)
In-Reply-To: <20240111122451.682-3-justinjiang@vivo.com>
On Thu, Jan 11, 2024 at 08:24:51PM +0800, Zhiguo Jiang wrote:
> The values of struct scan_control's members obtained by
> prepare_scan_control() are always from root_mem_cgroup, rather than
> the memcg where the shrinked folio is actually located, such as
> sc->anon_cost, sc->file_cost, sc->may_deactivate and so on. This is
> an inaccurate sc values for the actual situation of the current
> shrinking memcg. so we need fix the values of struct scan_control's
> members are corresponding to the current shrinking memcg.
You don't seem to understand how cgroup reclaim works.
Nacked-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2024-01-11 13:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-11 12:24 [PATCH v1 0/2] *** SUBJECT HERE *** Zhiguo Jiang
2024-01-11 12:24 ` [PATCH v1 1/2] mm:vmscan: fix workingset eviction memcg issue Zhiguo Jiang
2024-01-11 13:41 ` Johannes Weiner
2024-01-11 14:15 ` zhiguojiang
2024-01-11 12:24 ` [PATCH v1 2/2] mm:vmscan: fix shrink sc parameters issue Zhiguo Jiang
2024-01-11 13:43 ` Johannes Weiner [this message]
2024-01-12 1:27 ` zhiguojiang
2024-01-11 12:51 ` [PATCH v1 0/2] *** SUBJECT HERE *** Christophe Leroy
2024-01-11 13:10 ` zhiguojiang
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