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From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org,
	cgroups@vger.kernel.org, linux-sh@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org,
	David Hildenbrand <david@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	Peter Xu <peterx@redhat.com>, Ryan Roberts <ryan.roberts@arm.com>,
	Yin Fengwei <fengwei.yin@intel.com>,
	Yang Shi <shy828301@gmail.com>, Zi Yan <ziy@nvidia.com>,
	Jonathan Corbet <corbet@lwn.net>, Hugh Dickins <hughd@google.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>,
	John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
	Chris Zankel <chris@zankel.net>,
	Max Filippov <jcmvbkbc@gmail.com>,
	Muchun Song <muchun.song@linux.dev>,
	Miaohe Lin <linmiaohe@huawei.com>,
	Naoya Horiguchi <naoya.horiguchi@nec.com>,
	Richard Chang <richardycc@google.com>
Subject: [PATCH v1 18/18] Documentation/admin-guide/cgroup-v1/memory.rst: don't reference page_mapcount()
Date: Tue,  9 Apr 2024 21:23:01 +0200	[thread overview]
Message-ID: <20240409192301.907377-19-david@redhat.com> (raw)
In-Reply-To: <20240409192301.907377-1-david@redhat.com>

Let's stop talking about page_mapcount().

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 Documentation/admin-guide/cgroup-v1/memory.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst
index 46110e6a31bb..9cde26d33843 100644
--- a/Documentation/admin-guide/cgroup-v1/memory.rst
+++ b/Documentation/admin-guide/cgroup-v1/memory.rst
@@ -802,8 +802,8 @@ a page or a swap can be moved only when it is charged to the task's current
 |   | anonymous pages, file pages (and swaps) in the range mmapped by the task |
 |   | will be moved even if the task hasn't done page fault, i.e. they might   |
 |   | not be the task's "RSS", but other task's "RSS" that maps the same file. |
-|   | And mapcount of the page is ignored (the page can be moved even if       |
-|   | page_mapcount(page) > 1). You must enable Swap Extension (see 2.4) to    |
+|   | The mapcount of the page is ignored (the page can be moved independent   |
+|   | of the mapcount). You must enable Swap Extension (see 2.4) to            |
 |   | enable move of swap charges.                                             |
 +---+--------------------------------------------------------------------------+
 
-- 
2.44.0


      parent reply	other threads:[~2024-04-09 19:27 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-09 19:22 [PATCH v1 00/18] mm: mapcount for large folios + page_mapcount() cleanups David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 01/18] mm: allow for detecting underflows with page_mapcount() again David Hildenbrand
2024-04-09 20:06   ` Zi Yan
2024-04-09 21:42   ` Matthew Wilcox
2024-04-10  8:10     ` David Hildenbrand
2024-04-24  9:38   ` David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 02/18] mm/rmap: always inline anon/file rmap duplication of a single PTE David Hildenbrand
2024-04-19  2:25   ` Yin, Fengwei
2024-04-19  9:14     ` David Hildenbrand
2024-04-19 14:01   ` Yin, Fengwei
2024-04-09 19:22 ` [PATCH v1 03/18] mm/rmap: add fast-path for small folios when adding/removing/duplicating David Hildenbrand
2024-04-19 14:02   ` Yin, Fengwei
2024-04-09 19:22 ` [PATCH v1 04/18] mm: track mapcount of large folios in single value David Hildenbrand
2024-04-09 20:13   ` Zi Yan
2024-04-10  8:20     ` David Hildenbrand
2024-04-18 14:50   ` Lance Yang
2024-04-18 15:09     ` David Hildenbrand
2024-04-19  0:31       ` Lance Yang
2024-04-19 14:02   ` Yin, Fengwei
2024-04-09 19:22 ` [PATCH v1 05/18] mm: improve folio_likely_mapped_shared() using the mapcount of large folios David Hildenbrand
2024-04-16 10:40   ` Lance Yang
2024-04-16 10:47     ` David Hildenbrand
2024-04-16 10:52       ` Lance Yang
2024-04-16 10:53         ` David Hildenbrand
2024-04-19  2:29   ` Yin, Fengwei
2024-04-19  9:19     ` David Hildenbrand
2024-04-19 13:47       ` Yin, Fengwei
2024-04-19 13:48         ` David Hildenbrand
2024-04-19 14:03   ` Yin, Fengwei
2024-04-09 19:22 ` [PATCH v1 06/18] mm: make folio_mapcount() return 0 for small typed folios David Hildenbrand
2024-04-24  9:40   ` David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 07/18] mm/memory: use folio_mapcount() in zap_present_folio_ptes() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 08/18] mm/huge_memory: use folio_mapcount() in zap_huge_pmd() sanity check David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 09/18] mm/memory-failure: use folio_mapcount() in hwpoison_user_mappings() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 10/18] mm/page_alloc: use folio_mapped() in __alloc_contig_migrate_range() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 11/18] mm/migrate: use folio_likely_mapped_shared() in add_page_for_migration() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 12/18] sh/mm/cache: use folio_mapped() in copy_from_user_page() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 13/18] mm/filemap: use folio_mapcount() in filemap_unaccount_folio() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 14/18] mm/migrate_device: use folio_mapcount() in migrate_vma_check_page() David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 15/18] trace/events/page_ref: trace the raw page mapcount value David Hildenbrand
2024-04-09 19:22 ` [PATCH v1 16/18] xtensa/mm: convert check_tlb_entry() to sanity check folios David Hildenbrand
2024-04-09 19:23 ` [PATCH v1 17/18] mm/debug: print only page mapcount (excluding folio entire mapcount) in __dump_folio() David Hildenbrand
2024-04-09 19:23 ` David Hildenbrand [this message]

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