The patch titled
Subject: mm: remove is_longterm_pinnable_page() and Reimplement folio_is_longterm_pinnable()
has been added to the -mm mm-unstable branch. Its filename is
mm-remove-is_longterm_pinnable_page-and-reimplement-folio_is_longterm_pinnable.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-is_longterm_pinnable_page-and-reimplement-folio_is_longterm_pinnable.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: "Vishal Moola (Oracle)" <vishal.moola@xxxxxxxxx>
Subject: mm: remove is_longterm_pinnable_page() and Reimplement folio_is_longterm_pinnable()
Date: Tue, 13 Jun 2023 19:13:12 -0700
folio_is_longterm_pinnable() already exists as a wrapper function. Now
that the whole implementation of is_longterm_pinnable_page() can be
implemented using folios, folio_is_longterm_pinnable() can be made its own
standalone function - and we can remove is_longterm_pinnable_page().
Link: https://lkml.kernel.org/r/20230614021312.34085-6-vishal.moola@xxxxxxxxx
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 22 +++++++++-------------
1 file changed, 9 insertions(+), 13 deletions(-)
--- a/include/linux/mm.h~mm-remove-is_longterm_pinnable_page-and-reimplement-folio_is_longterm_pinnable
+++ a/include/linux/mm.h
@@ -1902,39 +1902,35 @@ static inline bool page_needs_cow_for_dm
return page_maybe_dma_pinned(page);
}
-/* MIGRATE_CMA and ZONE_MOVABLE do not allow pin pages */
+/* MIGRATE_CMA and ZONE_MOVABLE do not allow pin folios */
#ifdef CONFIG_MIGRATION
-static inline bool is_longterm_pinnable_page(struct page *page)
+static inline bool folio_is_longterm_pinnable(struct folio *folio)
{
#ifdef CONFIG_CMA
- int mt = get_pageblock_migratetype(page);
+ int mt = folio_migratetype(folio);
if (mt == MIGRATE_CMA || mt == MIGRATE_ISOLATE)
return false;
#endif
/* The zero page may always be pinned */
- if (is_zero_pfn(page_to_pfn(page)))
+ if (is_zero_pfn(folio_pfn(folio)))
return true;
/* Coherent device memory must always allow eviction. */
- if (is_device_coherent_page(page))
+ if (folio_is_device_coherent(folio))
return false;
- /* Otherwise, non-movable zone pages can be pinned. */
- return !is_zone_movable_page(page);
+ /* Otherwise, non-movable zone folios can be pinned. */
+ return !folio_is_zone_movable(folio);
+
}
#else
-static inline bool is_longterm_pinnable_page(struct page *page)
+static inline bool folio_is_longterm_pinnable(struct folio *folio)
{
return true;
}
#endif
-static inline bool folio_is_longterm_pinnable(struct folio *folio)
-{
- return is_longterm_pinnable_page(&folio->page);
-}
-
static inline void set_page_zone(struct page *page, enum zone_type zone)
{
page->flags &= ~(ZONES_MASK << ZONES_PGSHIFT);
_
Patches currently in -mm which might be from vishal.moola@xxxxxxxxx are
afs-fix-dangling-folio-ref-counts-in-writeback.patch
afs-fix-waiting-for-writeback-then-skipping-folio.patch
mmzone-introduce-folio_is_zone_movable.patch
mmzone-introduce-folio_migratetype.patch
mm-gup_testc-convert-verify_dma_pinned-to-us-folios.patch
mm-gupc-reorganize-try_get_folio.patch
mm-remove-is_longterm_pinnable_page-and-reimplement-folio_is_longterm_pinnable.patch
