The patch titled
Subject: mm/ksm: add folio_set_stable_node
has been added to the -mm mm-unstable branch. Its filename is
mm-ksm-add-folio_set_stable_node.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-ksm-add-folio_set_stable_node.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Alex Shi (tencent)" <alexs@xxxxxxxxxx>
Subject: mm/ksm: add folio_set_stable_node
Date: Thu, 11 Apr 2024 14:17:04 +0800
Turn set_page_stable_node() into a wrapper folio_set_stable_node, and then
use it to replace the former. we will merge them together after all place
converted to folio.
Link: https://lkml.kernel.org/r/20240411061713.1847574-4-alexs@xxxxxxxxxx
Signed-off-by: Alex Shi (tencent) <alexs@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Izik Eidus <izik.eidus@xxxxxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/ksm.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/mm/ksm.c~mm-ksm-add-folio_set_stable_node
+++ a/mm/ksm.c
@@ -1109,6 +1109,12 @@ static inline void set_page_stable_node(
page->mapping = (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM);
}
+static inline void folio_set_stable_node(struct folio *folio,
+ struct ksm_stable_node *stable_node)
+{
+ set_page_stable_node(&folio->page, stable_node);
+}
+
#ifdef CONFIG_SYSFS
/*
* Only called through the sysfs control interface:
@@ -3241,7 +3247,7 @@ void folio_migrate_ksm(struct folio *new
* has gone stale (or that folio_test_swapcache has been cleared).
*/
smp_wmb();
- set_page_stable_node(&folio->page, NULL);
+ folio_set_stable_node(folio, NULL);
}
}
#endif /* CONFIG_MIGRATION */
_
Patches currently in -mm which might be from alexs@xxxxxxxxxx are
mm-ksm-add-ksm_get_folio.patch
mm-ksm-use-folio-in-remove_rmap_item_from_tree.patch
mm-ksm-add-folio_set_stable_node.patch
mm-ksm-use-folio-in-remove_stable_node.patch
mm-ksm-use-folio-in-stable_node_dup.patch
mm-ksm-use-ksm_get_folio-in-scan_get_next_rmap_item.patch
mm-ksm-use-folio-in-write_protect_page.patch
mm-ksm-convert-chain-series-funcs-and-replace-get_ksm_page.patch
mm-ksm-replace-set_page_stable_node-by-folio_set_stable_node.patch
