From: Matthew Wilcox <willy@infradead.org>
To: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, david@redhat.com, linux-s390@vger.kernel.org,
linux-perf-users@vger.kernel.org
Subject: Re: [PATCH v2 1/8] mm: swap: introduce pfn_swap_entry_to_folio()
Date: Thu, 11 Jan 2024 14:37:41 +0000 [thread overview]
Message-ID: <ZZ/9NZKf3X3TGDsa@casper.infradead.org> (raw)
In-Reply-To: <20240111111239.2453282-2-wangkefeng.wang@huawei.com>
On Thu, Jan 11, 2024 at 07:12:32PM +0800, Kefeng Wang wrote:
> Introduce a new pfn_swap_entry_to_folio(), it is similar to
> pfn_swap_entry_to_page(), but return a folio, which allow us
> to completely replace the struct page variables with struct
> folio variables.
I have the exact same patch in my tree except I called it
pfn_swap_entry_folio(). I also noted:
Thanks to the compound_head() hidden inside PageLocked(), this saves a
call to compound_head() over calling page_folio(pfn_swap_entry_to_page())
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
next prev parent reply other threads:[~2024-01-11 14:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-11 11:12 [PATCH v2 0/8] mm: convert mm counter to take a folio Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 1/8] mm: swap: introduce pfn_swap_entry_to_folio() Kefeng Wang
2024-01-11 14:37 ` Matthew Wilcox [this message]
2024-01-11 14:39 ` Matthew Wilcox
2024-01-12 4:17 ` Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 2/8] s390: pgtable: use pfn_swap_entry_to_folio() in ptep_zap_swap_entry() Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 3/8] mm: huge_memory: use pfn_swap_entry_to_folio() in __split_huge_pmd_locked() Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 4/8] mm: huge_memory: use pfn_swap_entry_to_folio() in zap_huge_pmd() Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 5/8] mm: memory: use pfn_swap_entry_to_folio() in copy_nonpresent_pte() Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 6/8] mm: memory: convert to should_zap_folio() Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 7/8] mm: convert mm_counter() to take a folio Kefeng Wang
2024-01-11 11:12 ` [PATCH v2 8/8] mm: convert mm_counter_file() " Kefeng Wang
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