diff mbox series

[v2,02/27] mm: Add folio_pgdat

Message ID	20210118170148.3126186-3-willy@infradead.org (mailing list archive)
State	New
Headers	show Return-Path: <SRS0=dhnz=GV=kvack.org=owner-linux-mm@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B85DB22C7E From: "Matthew Wilcox (Oracle)" <willy@infradead.org> To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, linux-kernel@vger.kernel.org Subject: [PATCH v2 02/27] mm: Add folio_pgdat Date: Mon, 18 Jan 2021 17:01:23 +0000 Message-Id: <20210118170148.3126186-3-willy@infradead.org> In-Reply-To: <20210118170148.3126186-1-willy@infradead.org> References: <20210118170148.3126186-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	Page folios \| expand [v2,00/27] Page folios [v2,01/27] mm: Introduce struct folio [v2,02/27] mm: Add folio_pgdat [v2,03/27] mm/vmstat: Add folio stat wrappers [v2,04/27] mm/debug: Add VM_BUG_ON_FOLIO and VM_WARN_ON_ONCE_FOLIO [v2,05/27] mm: Add put_folio [v2,06/27] mm: Add get_folio [v2,07/27] mm: Create FolioFlags [v2,08/27] mm: Handle per-folio private data [v2,09/27] mm: Add folio_index, folio_page and folio_contains [v2,10/27] mm/util: Add folio_mapping and folio_file_mapping [v2,11/27] mm/memcg: Add folio_memcg, lock_folio_memcg and unlock_folio_memcg [v2,12/27] mm/memcg: Add mem_cgroup_folio_lruvec [v2,13/27] mm: Add unlock_folio [v2,14/27] mm: Add lock_folio [v2,15/27] mm: Add lock_folio_killable [v2,16/27] mm: Convert lock_page_async to lock_folio_async [v2,17/27] mm/filemap: Convert lock_page_for_iocb to lock_folio_for_iocb [v2,18/27] mm/filemap: Convert wait_on_page_locked_async to wait_on_folio_locked_async [v2,19/27] mm/filemap: Convert end_page_writeback to end_folio_writeback [v2,20/27] mm: Convert wait_on_page_bit to wait_on_folio_bit [v2,21/27] mm: Add wait_for_stable_folio and wait_on_folio_writeback [v2,22/27] mm: Add wait_on_folio_locked & wait_on_folio_locked_killable [v2,23/27] mm: Convert lock_page_or_retry to lock_folio_or_retry [v2,24/27] mm/filemap: Convert wake_up_page_bit to wake_up_folio_bit [v2,25/27] mm: Convert test_clear_page_writeback to test_clear_folio_writeback [v2,26/27] mm/filemap: Convert page wait queues to be folios [v2,27/27] cachefiles: Switch to wait_page_key

Commit Message

Matthew Wilcox Jan. 18, 2021, 5:01 p.m. UTC

This is just a convenience wrapper for callers with folios; pgdat can
be reached from tail pages as well as head pages.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 include/linux/mm.h | 5 +++++
 1 file changed, 5 insertions(+)

diff mbox series

Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0858af6479a3..5b071c226fd6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1500,6 +1500,11 @@  static inline pg_data_t *page_pgdat(const struct page *page)
 	return NODE_DATA(page_to_nid(page));
 }
 
+static inline pg_data_t *folio_pgdat(const struct folio *folio)
+{
+	return page_pgdat(&folio->page);
+}
+
 #ifdef SECTION_IN_PAGE_FLAGS
 static inline void set_page_section(struct page *page, unsigned long section)
 {