diff options
| author | David Hildenbrand <david@redhat.com> | 2023-12-20 23:44:38 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-29 11:58:50 -0800 |
| commit | 8bd5130070fbf2247a97c5361427a810522ac98a (patch) | |
| tree | c03424a05daecf6b8067d5e8ab9de600e3d3af03 /include/linux/rmap.h | |
| parent | 96fd74958c558d6976bbc303dda0efa389182fab (diff) | |
| download | linux-8bd5130070fbf2247a97c5361427a810522ac98a.tar.gz | |
mm/rmap: introduce folio_add_anon_rmap_[pte|ptes|pmd]()
Let's mimic what we did with folio_add_file_rmap_*() so we can similarly
replace page_add_anon_rmap() next.
Make the compiler always special-case on the granularity by using
__always_inline.
For the PageAnonExclusive sanity checks, when adding a PMD mapping, we're
now also checking each individual subpage covered by that PMD, instead of
only the head page.
Note that the new functions ignore the RMAP_COMPOUND flag, which we will
remove as soon as page_add_anon_rmap() is gone.
Link: https://lkml.kernel.org/r/20231220224504.646757-15-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/rmap.h')
| -rw-r--r-- | include/linux/rmap.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h index 6a4db6933e7df7..b5da3d86200e4f 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -233,6 +233,12 @@ static inline void __folio_rmap_sanity_checks(struct folio *folio, * rmap interfaces called when adding or removing pte of page */ void folio_move_anon_rmap(struct folio *, struct vm_area_struct *); +void folio_add_anon_rmap_ptes(struct folio *, struct page *, int nr_pages, + struct vm_area_struct *, unsigned long address, rmap_t flags); +#define folio_add_anon_rmap_pte(folio, page, vma, address, flags) \ + folio_add_anon_rmap_ptes(folio, page, 1, vma, address, flags) +void folio_add_anon_rmap_pmd(struct folio *, struct page *, + struct vm_area_struct *, unsigned long address, rmap_t flags); void page_add_anon_rmap(struct page *, struct vm_area_struct *, unsigned long address, rmap_t flags); void folio_add_new_anon_rmap(struct folio *, struct vm_area_struct *, |