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From: linmiaohe <linmiaohe@huawei.com>
To: "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	Vitaly Wool <vitaly.wool@konsulko.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [Question Resend] About z3fold page migration
Date: Mon, 12 Oct 2020 14:00:17 +0000	[thread overview]
Message-ID: <6d803d0cf27840caa64619949c2c3dd1@huawei.com> (raw)

Hi all:

	Many thanks for brilliant z3fold code. I am reading it and have some questions about it. It's very nice of you if you can explain it for me.
	1.page->private is used in z3fold but PagePrivate flag is never set, should we SetPagePrivate for it?
	2.Since PagePrivate flag is never set, why we ClearPagePrivate in free_z3fold_page and z3fold_page_migrate?
	3.Should we add page to the unbuddied list in z3fold_page_putback() when zhdr->refcount does not reach 0 since we remove it from unbuddied list
in z3fold_page_isolate? Or When we will add page to the unbuddied list after z3fold_page_putback?

	Thanks a lot in advance. And waiting for your kindly reply. :)



             reply	other threads:[~2020-10-12 14:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 14:00 linmiaohe [this message]
2020-10-12 14:04 ` [Question Resend] About z3fold page migration Matthew Wilcox
2020-10-13  1:46 linmiaohe

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