mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 20:56:44 +07:00
2e3d5dc508
Adding these missing helpers for uffd-wp operations with pmd swap/migration entries. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Bobby Powers <bobbypowers@gmail.com> Cc: Brian Geffon <bgeffon@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Martin Cracauer <cracauer@cons.org> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Rik van Riel <riel@redhat.com> Cc: Shaohua Li <shli@fb.com> Link: http://lkml.kernel.org/r/20200220163112.11409-10-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
67 lines
1.0 KiB
C
67 lines
1.0 KiB
C
#ifndef _ASM_GENERIC_PGTABLE_UFFD_H
|
|
#define _ASM_GENERIC_PGTABLE_UFFD_H
|
|
|
|
#ifndef CONFIG_HAVE_ARCH_USERFAULTFD_WP
|
|
static __always_inline int pte_uffd_wp(pte_t pte)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static __always_inline int pmd_uffd_wp(pmd_t pmd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static __always_inline pte_t pte_mkuffd_wp(pte_t pte)
|
|
{
|
|
return pte;
|
|
}
|
|
|
|
static __always_inline pmd_t pmd_mkuffd_wp(pmd_t pmd)
|
|
{
|
|
return pmd;
|
|
}
|
|
|
|
static __always_inline pte_t pte_clear_uffd_wp(pte_t pte)
|
|
{
|
|
return pte;
|
|
}
|
|
|
|
static __always_inline pmd_t pmd_clear_uffd_wp(pmd_t pmd)
|
|
{
|
|
return pmd;
|
|
}
|
|
|
|
static __always_inline pte_t pte_swp_mkuffd_wp(pte_t pte)
|
|
{
|
|
return pte;
|
|
}
|
|
|
|
static __always_inline int pte_swp_uffd_wp(pte_t pte)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static __always_inline pte_t pte_swp_clear_uffd_wp(pte_t pte)
|
|
{
|
|
return pte;
|
|
}
|
|
|
|
static inline pmd_t pmd_swp_mkuffd_wp(pmd_t pmd)
|
|
{
|
|
return pmd;
|
|
}
|
|
|
|
static inline int pmd_swp_uffd_wp(pmd_t pmd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline pmd_t pmd_swp_clear_uffd_wp(pmd_t pmd)
|
|
{
|
|
return pmd;
|
|
}
|
|
#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
|
|
|
|
#endif /* _ASM_GENERIC_PGTABLE_UFFD_H */
|