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From: haoxin <xhao@linux.alibaba.com>
To: Luis Chamberlain <mcgrof@kernel.org>
Cc: hughd@google.com, akpm@linux-foundation.org, willy@infradead.org,
	brauner@kernel.org, linux-mm@kvack.org, p.raghav@samsung.com,
	da.gomez@samsung.com, a.manzanares@samsung.com,
	dave@stgolabs.net, yosryahmed@google.com, keescook@chromium.org,
	patches@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/6] tmpfs: add the option to disable swap
Date: Mon, 20 Mar 2023 19:14:22 +0800	[thread overview]
Message-ID: <edb78eea-a9a2-5c62-d203-6f2be39757d2@linux.alibaba.com> (raw)
In-Reply-To: <ZBdxWsrYfPgBG6NX@bombadil.infradead.org>

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在 2023/3/20 上午4:32, Luis Chamberlain 写道:
> On Tue, Mar 14, 2023 at 10:46:28AM +0800, haoxin wrote:
>> All these series looks good to me and i do some test on my virtual machine
>> it works well.
>>
>> so please add Tested-by: Xin Hao<xhao@linux.alibaba.com>  .
>>
>> just one question, if tmpfs pagecache occupies a large amount of memory, how
>> can we ensure successful memory reclamation in case of memory shortage?
> If you're disabling swap then you know the only thing you can do is
> unmount if you want to help the VM, otherwise the pressure is just
> greater for the VM.

Un, what i mean is can we add a priority so that this type of pagecache 
is reclaimed last ?

Instead of just setting the parameter noswap to make it unreclaimed, 
because if such pagecache which

occupy big part of memory which can not be reclaimed, it will cause OOM.


>
>    Luis

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  reply	other threads:[~2023-03-20 11:14 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-09 23:05 [PATCH v2 0/6] tmpfs: add the option to disable swap Luis Chamberlain
2023-03-09 23:05 ` [PATCH v2 1/6] shmem: remove check for folio lock on writepage() Luis Chamberlain
2023-03-09 23:05 ` [PATCH v2 2/6] shmem: set shmem_writepage() variables early Luis Chamberlain
2023-03-09 23:05 ` [PATCH v2 3/6] shmem: move reclaim check early on writepages() Luis Chamberlain
2023-03-09 23:05 ` [PATCH v2 4/6] shmem: skip page split if we're not reclaiming Luis Chamberlain
2023-03-09 23:09   ` Yosry Ahmed
2023-04-18  4:41   ` Hugh Dickins
2023-04-18 21:11     ` Luis Chamberlain
2023-04-18 21:20       ` Hugh Dickins
2023-03-09 23:05 ` [PATCH v2 5/6] shmem: update documentation Luis Chamberlain
2023-04-18  5:29   ` Hugh Dickins
2023-04-18 21:20     ` Luis Chamberlain
2023-04-18 21:41       ` Hugh Dickins
2023-04-18 21:49         ` Luis Chamberlain
2023-03-09 23:05 ` [PATCH v2 6/6] shmem: add support to ignore swap Luis Chamberlain
2023-04-18  5:50   ` Hugh Dickins
2023-04-18  7:38     ` Christian Brauner
2023-04-18 21:51       ` Luis Chamberlain
2023-04-20  8:57         ` [PATCH] shmem: restrict noswap option to initial user namespace Christian Brauner
2023-04-20 19:18           ` Luis Chamberlain
2023-04-18 21:22     ` [PATCH v2 6/6] shmem: add support to ignore swap Luis Chamberlain
2023-04-18 21:30       ` Randy Dunlap
2023-03-14  1:21 ` [PATCH v2 0/6] tmpfs: add the option to disable swap Davidlohr Bueso
2023-03-14  2:46 ` haoxin
2023-03-19 20:32   ` Luis Chamberlain
2023-03-20 11:14     ` haoxin [this message]
2023-03-20 21:36       ` Luis Chamberlain
2023-03-21 11:37         ` haoxin
2023-04-18  4:31 ` Hugh Dickins
2023-04-18 20:55   ` Luis Chamberlain

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