mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-28 12:53:14 +01:00
Kiryl Shutsemau (Meta)
c0ffe79eed
Userfaultfd RWP will reuse the uffd-wp PTE bit to mark access-tracking PTEs, alongside the write-protected ones it already marks. The bit's meaning now depends on the VMA flag (WP or RWP), not on its name. Rename the kernel-internal names that describe the bit: - pte/pmd/huge_pte accessors (and swap variants) - pgtable_supports_uffd() capability query - SCAN_PTE_UFFD khugepaged enum The ftrace string emitted by mm_khugepaged_scan_pmd for this enum is kept as "pte_uffd_wp" so existing trace-based tooling keeps matching. Pure mechanical rename -- no behavior change. Link: https://lore.kernel.org/[email protected] Signed-off-by: Kiryl Shutsemau <[email protected]> Assisted-by: Claude:claude-opus-4-6 Reviewed-by: Mike Rapoport (Microsoft) <[email protected]> Reviewed-by: SeongJae Park <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: James Houghton <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Liam Howlett <[email protected]> Cc: Lorenzo Stoakes <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Peter Xu <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Suren Baghdasaryan <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Zi Yan <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_GENERIC_HUGETLB_H
|
|
#define _ASM_GENERIC_HUGETLB_H
|
|
|
|
#include <linux/swap.h>
|
|
#include <linux/swapops.h>
|
|
|
|
static inline unsigned long huge_pte_write(pte_t pte)
|
|
{
|
|
return pte_write(pte);
|
|
}
|
|
|
|
static inline unsigned long huge_pte_dirty(pte_t pte)
|
|
{
|
|
return pte_dirty(pte);
|
|
}
|
|
|
|
static inline pte_t huge_pte_mkwrite(pte_t pte)
|
|
{
|
|
return pte_mkwrite_novma(pte);
|
|
}
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
|
|
static inline pte_t huge_pte_wrprotect(pte_t pte)
|
|
{
|
|
return pte_wrprotect(pte);
|
|
}
|
|
#endif
|
|
|
|
static inline pte_t huge_pte_mkdirty(pte_t pte)
|
|
{
|
|
return pte_mkdirty(pte);
|
|
}
|
|
|
|
static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)
|
|
{
|
|
return pte_modify(pte, newprot);
|
|
}
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTE_MKUFFD
|
|
static inline pte_t huge_pte_mkuffd(pte_t pte)
|
|
{
|
|
return huge_pte_wrprotect(pte_mkuffd(pte));
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR_UFFD
|
|
static inline pte_t huge_pte_clear_uffd(pte_t pte)
|
|
{
|
|
return pte_clear_uffd(pte);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTE_UFFD
|
|
static inline int huge_pte_uffd(pte_t pte)
|
|
{
|
|
return pte_uffd(pte);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR
|
|
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
|
|
pte_t *ptep, unsigned long sz)
|
|
{
|
|
pte_clear(mm, addr, ptep);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
|
|
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
|
|
pte_t *ptep, pte_t pte, unsigned long sz)
|
|
{
|
|
set_pte_at(mm, addr, ptep, pte);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
|
|
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
|
|
unsigned long addr, pte_t *ptep, unsigned long sz)
|
|
{
|
|
return ptep_get_and_clear(mm, addr, ptep);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
|
|
static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
return ptep_clear_flush(vma, addr, ptep);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTE_NONE
|
|
static inline int huge_pte_none(pte_t pte)
|
|
{
|
|
return pte_none(pte);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
|
|
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
ptep_set_wrprotect(mm, addr, ptep);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
|
|
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep,
|
|
pte_t pte, int dirty)
|
|
{
|
|
return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_HUGE_PTEP_GET
|
|
static inline pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
|
|
{
|
|
return ptep_get(ptep);
|
|
}
|
|
#endif
|
|
|
|
#ifndef __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED
|
|
static inline bool gigantic_page_runtime_supported(void)
|
|
{
|
|
return IS_ENABLED(CONFIG_ARCH_HAS_GIGANTIC_PAGE);
|
|
}
|
|
#endif /* __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED */
|
|
|
|
#endif /* _ASM_GENERIC_HUGETLB_H */
|