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mm/hugetlb: get rid of page_hstate() 

Convert the last page_hstate() user to use folio_hstate() so page_hstate()
can be safely removed.

Link: https://lkml.kernel.org/r/20230719184145.301911-1-sidhartha.kumar@oracle.com
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Sidhartha Kumar 2023-07-19 11:41:45 -07:00 committed by Andrew Morton
parent 89be82b4fe
commit affd26b1fb
3 changed files with 7 additions and 17 deletions
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10
include/linux/hugetlb.h
View File

@ -841,11 +841,6 @@ static inline struct hstate *folio_hstate(struct folio *folio)
return size_to_hstate(folio_size(folio));
}
static inline struct hstate *page_hstate(struct page *page)
{
return folio_hstate(page_folio(page));
}
static inline unsigned hstate_index_to_shift(unsigned index)
{
return hstates[index].order + PAGE_SHIFT;
@ -1062,11 +1057,6 @@ static inline struct hstate *folio_hstate(struct folio *folio)
return NULL;
}
static inline struct hstate *page_hstate(struct page *page)
{
return NULL;
}
static inline struct hstate *size_to_hstate(unsigned long size)
{
return NULL;

6
mm/hugetlb.c
View File

@ -1785,10 +1785,10 @@ static void free_hpage_workfn(struct work_struct *work)
node = node->next;
page->mapping = NULL;
/*
* The VM_BUG_ON_PAGE(!PageHuge(page), page) in page_hstate()
* is going to trigger because a previous call to
* The VM_BUG_ON_FOLIO(!folio_test_hugetlb(folio), folio) in
* folio_hstate() is going to trigger because a previous call to
* remove_hugetlb_folio() will call folio_set_compound_dtor
* (folio, NULL_COMPOUND_DTOR), so do not use page_hstate()
* (folio, NULL_COMPOUND_DTOR), so do not use folio_hstate()
* directly.
*/
h = size_to_hstate(page_size(page));

8
mm/page_isolation.c
View File

@ -79,17 +79,17 @@ static struct page *has_unmovable_pages(unsigned long start_pfn, unsigned long e
* handle each tail page individually in migration.
*/
if (PageHuge(page) || PageTransCompound(page)) {
struct page *head = compound_head(page);
struct folio *folio = page_folio(page);
unsigned int skip_pages;
if (PageHuge(page)) {
if (!hugepage_migration_supported(page_hstate(head)))
if (!hugepage_migration_supported(folio_hstate(folio)))
return page;
} else if (!PageLRU(head) && !__PageMovable(head)) {
} else if (!folio_test_lru(folio) && !__folio_test_movable(folio)) {
return page;
}
skip_pages = compound_nr(head) - (page - head);
skip_pages = folio_nr_pages(folio) - folio_page_idx(folio, page);
pfn += skip_pages - 1;
continue;
}