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mm: convert arch_clear_hugepage_flags to take a folio

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All implementations that aren't no-ops just set a bit in the flags, and we
want to use the folio flags rather than the page flags for that.  Rename
it to arch_clear_hugetlb_flags() while we're touching it so nobody thinks
it's used for THP.

[willy@infradead.org: fix arm64 build]
  Link: https://lkml.kernel.org/r/ZgQvNKGdlDkwhQEX@casper.infradead.org
Link: https://lkml.kernel.org/r/20240326171045.410737-8-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-03-26 17:10:29 +00:00 committed by Andrew Morton
parent b84fd2835c
commit 51718e25c5
7 changed files with 20 additions and 20 deletions
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6
arch/arm/include/asm/hugetlb.h
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@ -15,10 +15,10 @@
#include <asm/hugetlb-3level.h>
#include <asm-generic/hugetlb.h>
static inline void arch_clear_hugepage_flags(struct page *page)
static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
clear_bit(PG_dcache_clean, &page->flags);
clear_bit(PG_dcache_clean, &folio->flags);
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#endif /* _ASM_ARM_HUGETLB_H */

6
arch/arm64/include/asm/hugetlb.h
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@ -18,11 +18,11 @@
extern bool arch_hugetlb_migration_supported(struct hstate *h);
#endif
static inline void arch_clear_hugepage_flags(struct page *page)
static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
clear_bit(PG_dcache_clean, &page->flags);
clear_bit(PG_dcache_clean, &folio->flags);
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
#define arch_make_huge_pte arch_make_huge_pte

6
arch/riscv/include/asm/hugetlb.h
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@ -5,11 +5,11 @@
#include <asm/cacheflush.h>
#include <asm/page.h>
static inline void arch_clear_hugepage_flags(struct page *page)
static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
clear_bit(PG_dcache_clean, &page->flags);
clear_bit(PG_dcache_clean, &folio->flags);
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
bool arch_hugetlb_migration_supported(struct hstate *h);

6
arch/s390/include/asm/hugetlb.h
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@ -39,11 +39,11 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
static inline void arch_clear_hugepage_flags(struct page *page)
static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
clear_bit(PG_arch_1, &page->flags);
clear_bit(PG_arch_1, &folio->flags);
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long sz)

6
arch/sh/include/asm/hugetlb.h
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@ -27,11 +27,11 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
return *ptep;
}
static inline void arch_clear_hugepage_flags(struct page *page)
static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
clear_bit(PG_dcache_clean, &page->flags);
clear_bit(PG_dcache_clean, &folio->flags);
}
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#include <asm-generic/hugetlb.h>

6
include/linux/hugetlb.h
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@ -836,9 +836,9 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
#define is_hugepage_only_range is_hugepage_only_range
#endif
#ifndef arch_clear_hugepage_flags
static inline void arch_clear_hugepage_flags(struct page *page) { }
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#ifndef arch_clear_hugetlb_flags
static inline void arch_clear_hugetlb_flags(struct folio *folio) { }
#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#endif
#ifndef arch_make_huge_pte

4
mm/hugetlb.c
View File

@ -1726,7 +1726,7 @@ static void add_hugetlb_folio(struct hstate *h, struct folio *folio,
*/
return;
arch_clear_hugepage_flags(&folio->page);
arch_clear_hugetlb_flags(folio);
enqueue_hugetlb_folio(h, folio);
}
@ -2024,7 +2024,7 @@ void free_huge_folio(struct folio *folio)
spin_unlock_irqrestore(&hugetlb_lock, flags);
update_and_free_hugetlb_folio(h, folio, true);
} else {
arch_clear_hugepage_flags(&folio->page);
arch_clear_hugetlb_flags(folio);
enqueue_hugetlb_folio(h, folio);
spin_unlock_irqrestore(&hugetlb_lock, flags);
}