From: Matthew Wilcox <willy@infradead.org>
To: Yin Fengwei <fengwei.yin@intel.com>
Cc: linux-mm@kvack.org, dave.hansen@intel.com, tim.c.chen@intel.com,
ying.huang@intel.com
Subject: Re: [RFC PATCH 2/2] rmap: remove parameter 'compound' from foeio_add_file_rmap_range()
Date: Mon, 6 Feb 2023 16:50:36 +0000 [thread overview]
Message-ID: <Y+Ev3GQGDchr2UqI@casper.infradead.org> (raw)
In-Reply-To: <20230206153049.770556-3-fengwei.yin@intel.com>
On Mon, Feb 06, 2023 at 11:30:49PM +0800, Yin Fengwei wrote:
> Remove parameter 'compound' from folio_add_file_rmap_range().
>
> The parameter nr_pages is checked whether same as folio page
> numbers to know whether it's entire folio operation.
We can't do this yet. Even if a folio is large enough to be PMD mapped,
it may have been mapped askew (or its PMD mapping may have been split).
We still need the caller to tell us whether it's been mapped with
a PMD or with PTEs.
next prev parent reply other threads:[~2023-02-06 16:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-06 15:30 [RFC PATCH 0/2] remove parameter 'compound' of add_file_rmap Yin Fengwei
2023-02-06 15:30 ` [RFC PATCH 1/2] rmap: Add function to handle entire folio rmap removing Yin Fengwei
2023-02-06 15:30 ` [RFC PATCH 2/2] rmap: remove parameter 'compound' from foeio_add_file_rmap_range() Yin Fengwei
2023-02-06 16:50 ` Matthew Wilcox [this message]
2023-02-07 2:44 ` Yin, Fengwei
2023-02-07 5:03 ` Matthew Wilcox
2023-02-07 5:35 ` Yin, Fengwei
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