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mm/mglru: add dummy pmd_dirty()

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Add dummy pmd_dirty() for architectures that don't provide it.
This is similar to commit 6617da8fb5 ("mm: add dummy pmd_young()
for architectures not having it").

Link: https://lkml.kernel.org/r/20231227141205.2200125-5-kinseyho@google.com
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312210606.1Etqz3M4-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202312210042.xQEiqlEh-lkp@intel.com/
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Suggested-by: Yu Zhao <yuzhao@google.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kinsey Ho 2023-12-27 14:12:04 +00:00 committed by Andrew Morton
parent 745b13e647
commit 533c67e635
7 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/loongarch/include/asm/pgtable.h
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@ -523,6 +523,7 @@ static inline pmd_t pmd_wrprotect(pmd_t pmd)
return pmd;
}
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
return !!(pmd_val(pmd) & (_PAGE_DIRTY | _PAGE_MODIFIED));

1
arch/mips/include/asm/pgtable.h
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@ -655,6 +655,7 @@ static inline pmd_t pmd_mkwrite_novma(pmd_t pmd)
return pmd;
}
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
return !!(pmd_val(pmd) & _PAGE_MODIFIED);

1
arch/riscv/include/asm/pgtable.h
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@ -673,6 +673,7 @@ static inline int pmd_write(pmd_t pmd)
return pte_write(pmd_pte(pmd));
}
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
return pte_dirty(pmd_pte(pmd));

1
arch/s390/include/asm/pgtable.h
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@ -770,6 +770,7 @@ static inline int pud_write(pud_t pud)
return (pud_val(pud) & _REGION3_ENTRY_WRITE) != 0;
}
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
return (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) != 0;

1
arch/sparc/include/asm/pgtable_64.h
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@ -706,6 +706,7 @@ static inline unsigned long pmd_write(pmd_t pmd)
#define pud_write(pud) pte_write(__pte(pud_val(pud)))
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
#define pmd_dirty pmd_dirty
static inline unsigned long pmd_dirty(pmd_t pmd)
{
pte_t pte = __pte(pmd_val(pmd));

1
arch/x86/include/asm/pgtable.h
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@ -141,6 +141,7 @@ static inline int pte_young(pte_t pte)
return pte_flags(pte) & _PAGE_ACCESSED;
}
#define pmd_dirty pmd_dirty
static inline bool pmd_dirty(pmd_t pmd)
{
return pmd_flags(pmd) & _PAGE_DIRTY_BITS;

7
include/linux/pgtable.h
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@ -184,6 +184,13 @@ static inline int pmd_young(pmd_t pmd)
}
#endif
#ifndef pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
return 0;
}
#endif
/*
* A facility to provide lazy MMU batching. This allows PTE updates and
* page invalidations to be delayed until a call to leave lazy MMU mode