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mm/damon: Convert damon_pa_mkold() to use a folio 

Ensure that we're passing the entire folio to rmap_walk().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-01-29 10:46:04 -05:00
parent 4eecb8b916
commit 6d42dba3cc
1 changed files with 9 additions and 7 deletions
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16
mm/damon/paddr.c
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@ -33,6 +33,7 @@ static bool __damon_pa_mkold(struct page *page, struct vm_area_struct *vma,
static void damon_pa_mkold(unsigned long paddr)
{
struct folio *folio;
struct page *page = damon_get_page(PHYS_PFN(paddr));
struct rmap_walk_control rwc = {
.rmap_one = __damon_pa_mkold,
@ -42,23 +43,24 @@ static void damon_pa_mkold(unsigned long paddr)
if (!page)
return;
folio = page_folio(page);
if (!page_mapped(page) || !page_rmapping(page)) {
set_page_idle(page);
if (!folio_mapped(folio) || !folio_raw_mapping(folio)) {
folio_set_idle(folio);
goto out;
}
need_lock = !PageAnon(page) || PageKsm(page);
if (need_lock && !trylock_page(page))
need_lock = !folio_test_anon(folio) || folio_test_ksm(folio);
if (need_lock && !folio_trylock(folio))
goto out;
rmap_walk(page, &rwc);
rmap_walk(&folio->page, &rwc);
if (need_lock)
unlock_page(page);
folio_unlock(folio);
out:
put_page(page);
folio_put(folio);
}
static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,