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mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap() 

Let's convert it to consume a folio.

[akpm@linux-foundation.org: fix kerneldoc]
Link: https://lkml.kernel.org/r/20231002142949.235104-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand 2023-10-02 16:29:48 +02:00 committed by Andrew Morton
parent 5ca432896a
commit 069686255c
5 changed files with 11 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/rmap.h
View File

@ -189,7 +189,7 @@ typedef int __bitwise rmap_t;
/*
* rmap interfaces called when adding or removing pte of page
*/
void page_move_anon_rmap(struct page *, struct vm_area_struct *);
void folio_move_anon_rmap(struct folio *, struct vm_area_struct *);
void page_add_anon_rmap(struct page *, struct vm_area_struct *,
unsigned long address, rmap_t flags);
void page_add_new_anon_rmap(struct page *, struct vm_area_struct *,

2
mm/huge_memory.c
View File

@ -1376,7 +1376,7 @@ vm_fault_t do_huge_pmd_wp_page(struct vm_fault *vmf)
if (folio_ref_count(folio) == 1) {
pmd_t entry;
page_move_anon_rmap(page, vma);
folio_move_anon_rmap(folio, vma);
SetPageAnonExclusive(page);
folio_unlock(folio);
reuse:

2
mm/hugetlb.c
View File

@ -5653,7 +5653,7 @@ retry_avoidcopy:
*/
if (folio_mapcount(old_folio) == 1 && folio_test_anon(old_folio)) {
if (!PageAnonExclusive(&old_folio->page)) {
page_move_anon_rmap(&old_folio->page, vma);
folio_move_anon_rmap(old_folio, vma);
SetPageAnonExclusive(&old_folio->page);
}
if (likely(!unshare))

2
mm/memory.c
View File

@ -3480,7 +3480,7 @@ static vm_fault_t do_wp_page(struct vm_fault *vmf)
* and the folio is locked, it's dark out, and we're wearing
* sunglasses. Hit it.
*/
page_move_anon_rmap(vmf->page, vma);
folio_move_anon_rmap(folio, vma);
SetPageAnonExclusive(vmf->page);
folio_unlock(folio);
reuse:

16
mm/rmap.c
View File

@ -1128,19 +1128,17 @@ int folio_total_mapcount(struct folio *folio)
}
/**
* page_move_anon_rmap - move a page to our anon_vma
* @page: the page to move to our anon_vma
* @vma: the vma the page belongs to
* folio_move_anon_rmap - move a folio to our anon_vma
* @folio: The folio to move to our anon_vma
* @vma: The vma the folio belongs to
*
* When a page belongs exclusively to one process after a COW event,
* that page can be moved into the anon_vma that belongs to just that
* process, so the rmap code will not search the parent or sibling
* processes.
* When a folio belongs exclusively to one process after a COW event,
* that folio can be moved into the anon_vma that belongs to just that
* process, so the rmap code will not search the parent or sibling processes.
*/
void page_move_anon_rmap(struct page *page, struct vm_area_struct *vma)
void folio_move_anon_rmap(struct folio *folio, struct vm_area_struct *vma)
{
void *anon_vma = vma->anon_vma;
struct folio *folio = page_folio(page);
VM_BUG_ON_FOLIO(!folio_test_locked(folio), folio);
VM_BUG_ON_VMA(!anon_vma, vma);