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mm/mglru: add dummy pmd_dirty() 

JIRA: https://issues.redhat.com/browse/RHEL-25415

Conflicts: Not worried about unsupported arches.  Minor drift in x86 (int
vs bool on function).

commit 533c67e6358406727145efae32882c4dc355d6c5
Author: Kinsey Ho <kinseyho@google.com>
Date:   Wed Dec 27 14:12:04 2023 +0000

    mm/mglru: add dummy pmd_dirty()

    Add dummy pmd_dirty() for architectures that don't provide it.
    This is similar to commit 6617da8fb565 ("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>

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
This commit is contained in:
Prarit Bhargava 2024-02-13 13:49:38 -05:00
parent fa1a6eda86
commit 7ce066bb2b
6 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/mips/include/asm/pgtable.h
View File

@ -611,6 +611,7 @@ static inline pmd_t pmd_mkwrite(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
View File

@ -526,6 +526,7 @@ 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
View File

@ -784,6 +784,7 @@ 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
View File

@ -705,6 +705,7 @@ 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
View File

@ -134,6 +134,7 @@ static inline int pte_young(pte_t pte)
return pte_flags(pte) & _PAGE_ACCESSED;
}
#define pmd_dirty pmd_dirty
static inline int pmd_dirty(pmd_t pmd)
{
return pmd_flags(pmd) & _PAGE_DIRTY;

7
include/linux/pgtable.h
View File

@ -1042,6 +1042,13 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
#define pgprot_decrypted(prot) (prot)
#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