From: Matthew Wilcox <willy@infradead.org>
To: John David Anglin <dave.anglin@bell.net>
Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org,
"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
Helge Deller <deller@gmx.de>,
linux-parisc@vger.kernel.org
Subject: Re: [PATCH v2 17/30] parisc: Implement the new page table range API
Date: Mon, 27 Feb 2023 23:50:52 +0000 [thread overview]
Message-ID: <Y/1B3BhgZp5aHry6@casper.infradead.org> (raw)
In-Reply-To: <d97b8a56-89cc-1eb4-1298-7b16079b3b46@bell.net>
On Mon, Feb 27, 2023 at 05:49:18PM -0500, John David Anglin wrote:
> > @@ -104,13 +104,17 @@ __update_cache(pte_t pte)
> > if (!pfn_valid(pfn))
> > return;
> > - page = pfn_to_page(pfn);
> > - if (page_mapping_file(page) &&
> > - test_bit(PG_dcache_dirty, &page->flags)) {
> > - flush_kernel_dcache_page_addr(pfn_va(pfn));
> > - clear_bit(PG_dcache_dirty, &page->flags);
> > + folio = page_folio(pfn_to_page(pfn));
> > + pfn = folio_pfn(folio);
> > + nr = folio_nr_pages(folio);
> > + if (folio_flush_mapping(folio) &&
> Shouldn't this call be to folio_mapping()?
For pages in the swap cache, folio_mapping() will return the swap cache
mapping, which isn't what we want. folio_file_mapping() will return the
swap file mapping, which is also not what we want. folio_flush_mapping()
returns NULL, which is what we want.
next prev parent reply other threads:[~2023-02-27 23:51 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-27 17:57 [PATCH v2 00/30] New " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 01/30] mm: Convert page_table_check_pte_set() to page_table_check_ptes_set() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 02/30] mm: Add generic flush_icache_pages() and documentation Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 03/30] mm: Add folio_flush_mapping() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 04/30] mm: Remove ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 05/30] alpha: Implement the new page table range API Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 06/30] arc: " Matthew Wilcox (Oracle)
2023-02-28 6:34 ` Vineet Gupta
2023-02-28 16:25 ` Matthew Wilcox
2023-02-27 17:57 ` [PATCH v2 07/30] arm64: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 08/30] csky: " Matthew Wilcox (Oracle)
2023-02-28 3:17 ` Guo Ren
2023-02-27 17:57 ` [PATCH v2 09/30] hexagon: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 10/30] ia64: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 11/30] loongarch: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 12/30] m68k: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 13/30] microblaze: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 14/30] mips: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 15/30] nios2: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 16/30] openrisc: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 17/30] parisc: " Matthew Wilcox (Oracle)
2023-02-27 22:49 ` John David Anglin
2023-02-27 23:50 ` Matthew Wilcox [this message]
2023-02-27 17:57 ` [PATCH v2 18/30] powerpc: " Matthew Wilcox (Oracle)
2023-02-27 19:45 ` Christophe Leroy
2023-02-27 20:20 ` Matthew Wilcox
2023-02-28 6:58 ` Christophe Leroy
2023-02-27 17:57 ` [PATCH v2 19/30] riscv: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 20/30] s390: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 21/30] superh: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 22/30] sparc32: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 23/30] sparc64: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 24/30] um: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 25/30] x86: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 26/30] xtensa: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 27/30] filemap: Add filemap_map_folio_range() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 28/30] rmap: add folio_add_file_rmap_range() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 29/30] mm: Convert do_set_pte() to set_pte_range() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 30/30] filemap: Batch PTE mappings Matthew Wilcox (Oracle)
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