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mm/rmap: remove page_try_dup_anon_rmap()

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All users are gone, remove page_try_dup_anon_rmap() and any remaining
traces.

Link: https://lkml.kernel.org/r/20231220224504.646757-38-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.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>
Cc: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand 2023-12-20 23:45:01 +01:00 committed by Andrew Morton
parent 08e7795e24
commit a13d096471
1 changed files with 3 additions and 13 deletions
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16
include/linux/rmap.h
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@ -253,7 +253,7 @@ void hugetlb_add_anon_rmap(struct folio *, struct vm_area_struct *,
void hugetlb_add_new_anon_rmap(struct folio *, struct vm_area_struct *,
unsigned long address);
/* See page_try_dup_anon_rmap() */
/* See folio_try_dup_anon_rmap_*() */
static inline int hugetlb_try_dup_anon_rmap(struct folio *folio,
struct vm_area_struct *vma)
{
@ -478,16 +478,6 @@ static inline int folio_try_dup_anon_rmap_pmd(struct folio *folio,
#endif
}
static inline int page_try_dup_anon_rmap(struct page *page, bool compound,
struct vm_area_struct *vma)
{
struct folio *folio = page_folio(page);
if (likely(!compound))
return folio_try_dup_anon_rmap_pte(folio, page, vma);
return folio_try_dup_anon_rmap_pmd(folio, page, vma);
}
/**
* page_try_share_anon_rmap - try marking an exclusive anonymous page possibly
* shared to prepare for KSM or temporary unmapping
@ -496,8 +486,8 @@ static inline int page_try_dup_anon_rmap(struct page *page, bool compound,
* The caller needs to hold the PT lock and has to have the page table entry
* cleared/invalidated.
*
* This is similar to page_try_dup_anon_rmap(), however, not used during fork()
* to duplicate a mapping, but instead to prepare for KSM or temporarily
* This is similar to folio_try_dup_anon_rmap_*(), however, not used during
* fork() to duplicate a mapping, but instead to prepare for KSM or temporarily
* unmapping a page (swap, migration) via folio_remove_rmap_*().
*
* Marking the page shared can only fail if the page may be pinned; device