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ksm: convert should_skip_rmap_item() to take a folio

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Remove a call to PageKSM() by passing the folio containing tmp_page to
should_skip_rmap_item.  Removes a hidden call to compound_head().

Link: https://lkml.kernel.org/r/20241002152533.1350629-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alex Shi <alexs@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2024-10-02 16:25:29 +01:00 committed by Andrew Morton
parent 98c3ca0015
commit 76f1a82611
1 changed files with 4 additions and 4 deletions
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8
mm/ksm.c
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@ -2402,10 +2402,10 @@ static unsigned int skip_age(rmap_age_t age)
/*
* Determines if a page should be skipped for the current scan.
*
* @page: page to check
* @folio: folio containing the page to check
* @rmap_item: associated rmap_item of page
*/
static bool should_skip_rmap_item(struct page *page,
static bool should_skip_rmap_item(struct folio *folio,
struct ksm_rmap_item *rmap_item)
{
rmap_age_t age;
@ -2418,7 +2418,7 @@ static bool should_skip_rmap_item(struct page *page,
* will essentially ignore them, but we still have to process them
* properly.
*/
if (PageKsm(page))
if (folio_test_ksm(folio))
return false;
age = rmap_item->age;
@ -2561,7 +2561,7 @@ static struct ksm_rmap_item *scan_get_next_rmap_item(struct page **page)
ksm_scan.rmap_list =
&rmap_item->rmap_list;
if (should_skip_rmap_item(tmp_page, rmap_item)) {
if (should_skip_rmap_item(folio, rmap_item)) {
folio_put(folio);
goto next_page;
}