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Revert "mm/hugetlb: convert free_huge_page to folios"

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This reverts commit 10de76f4cd which is
commit 0356c4b96f upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I17aaa4dfc3802a5de10dfbf2e438888d8d5158e4
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2024-07-20 12:49:05 +00:00
parent dd84aa68cd
commit 563a9907e2
1 changed files with 13 additions and 14 deletions
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27
mm/hugetlb.c
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@@ -1917,22 +1917,21 @@ void free_huge_page(struct page *page)
* Can't pass hstate in here because it is called from the
* compound page destructor.
*/
struct folio *folio = page_folio(page);
struct hstate *h = folio_hstate(folio);
int nid = folio_nid(folio);
struct hugepage_subpool *spool = hugetlb_folio_subpool(folio);
struct hstate *h = page_hstate(page);
int nid = page_to_nid(page);
struct hugepage_subpool *spool = hugetlb_page_subpool(page);
bool restore_reserve;
unsigned long flags;
VM_BUG_ON_FOLIO(folio_ref_count(folio), folio);
VM_BUG_ON_FOLIO(folio_mapcount(folio), folio);
VM_BUG_ON_PAGE(page_count(page), page);
VM_BUG_ON_PAGE(page_mapcount(page), page);
hugetlb_set_folio_subpool(folio, NULL);
if (folio_test_anon(folio))
__ClearPageAnonExclusive(&folio->page);
folio->mapping = NULL;
restore_reserve = folio_test_hugetlb_restore_reserve(folio);
folio_clear_hugetlb_restore_reserve(folio);
hugetlb_set_page_subpool(page, NULL);
if (PageAnon(page))
__ClearPageAnonExclusive(page);
page->mapping = NULL;
restore_reserve = HPageRestoreReserve(page);
ClearHPageRestoreReserve(page);
/*
* If HPageRestoreReserve was set on page, page allocation consumed a
@@ -1954,7 +1953,7 @@ void free_huge_page(struct page *page)
}
spin_lock_irqsave(&hugetlb_lock, flags);
folio_clear_hugetlb_migratable(folio);
ClearHPageMigratable(page);
hugetlb_cgroup_uncharge_page(hstate_index(h),
pages_per_huge_page(h), page);
hugetlb_cgroup_uncharge_page_rsvd(hstate_index(h),
@@ -1962,7 +1961,7 @@ void free_huge_page(struct page *page)
if (restore_reserve)
h->resv_huge_pages++;
if (folio_test_hugetlb_temporary(folio)) {
if (HPageTemporary(page)) {
remove_hugetlb_page(h, page, false);
spin_unlock_irqrestore(&hugetlb_lock, flags);
update_and_free_page(h, page, true);