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Signed-off-by: Sidhartha Kumar --- include/linux/hugetlb_cgroup.h | 12 ++++++------ mm/hugetlb.c | 33 +++++++++++++++++++-------------- mm/hugetlb_cgroup.c | 11 ++++++----- 3 files changed, 31 insertions(+), 25 deletions(-) diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h index feb2edafc8b6..a7e3540f7f38 100644 --- a/include/linux/hugetlb_cgroup.h +++ b/include/linux/hugetlb_cgroup.h @@ -112,16 +112,16 @@ static inline void __set_hugetlb_cgroup(struct folio *folio, (unsigned long)h_cg); } -static inline void set_hugetlb_cgroup(struct page *page, +static inline void set_hugetlb_cgroup(struct folio *folio, struct hugetlb_cgroup *h_cg) { - __set_hugetlb_cgroup(page_folio(page), h_cg, false); + __set_hugetlb_cgroup(folio, h_cg, false); } -static inline void set_hugetlb_cgroup_rsvd(struct page *page, +static inline void set_hugetlb_cgroup_rsvd(struct folio *folio, struct hugetlb_cgroup *h_cg) { - __set_hugetlb_cgroup(page_folio(page), h_cg, true); + __set_hugetlb_cgroup(folio, h_cg, true); } static inline bool hugetlb_cgroup_disabled(void) @@ -199,12 +199,12 @@ hugetlb_cgroup_from_folio_rsvd(struct folio *folio) return NULL; } -static inline void set_hugetlb_cgroup(struct page *page, +static inline void set_hugetlb_cgroup(struct folio *folio, struct hugetlb_cgroup *h_cg) { } -static inline void set_hugetlb_cgroup_rsvd(struct page *page, +static inline void set_hugetlb_cgroup_rsvd(struct folio *folio, struct hugetlb_cgroup *h_cg) { } diff --git a/mm/hugetlb.c b/mm/hugetlb.c index bcb9bfce32ee..4d98bf7ba81c 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1758,19 +1758,21 @@ static void __prep_account_new_huge_page(struct hstate *h, int nid) h->nr_huge_pages_node[nid]++; } -static void __prep_new_huge_page(struct hstate *h, struct page *page) +static void __prep_new_hugetlb_folio(struct hstate *h, struct folio *folio) { - hugetlb_vmemmap_optimize(h, page); - INIT_LIST_HEAD(&page->lru); - set_compound_page_dtor(page, HUGETLB_PAGE_DTOR); - hugetlb_set_page_subpool(page, NULL); - set_hugetlb_cgroup(page, NULL); - set_hugetlb_cgroup_rsvd(page, NULL); + hugetlb_vmemmap_optimize(h, &folio->page); + INIT_LIST_HEAD(&folio->lru); + folio->_folio_dtor = HUGETLB_PAGE_DTOR; + hugetlb_set_folio_subpool(folio, NULL); + set_hugetlb_cgroup(folio, NULL); + set_hugetlb_cgroup_rsvd(folio, NULL); } static void prep_new_huge_page(struct hstate *h, struct page *page, int nid) { - __prep_new_huge_page(h, page); + struct folio *folio = page_folio(page); + + __prep_new_hugetlb_folio(h, folio); spin_lock_irq(&hugetlb_lock); __prep_account_new_huge_page(h, nid); spin_unlock_irq(&hugetlb_lock); @@ -2731,8 +2733,10 @@ static int alloc_and_dissolve_huge_page(struct hstate *h, struct page *old_page, struct list_head *list) { gfp_t gfp_mask = htlb_alloc_mask(h) | __GFP_THISNODE; - int nid = page_to_nid(old_page); + struct folio *old_folio = page_folio(old_page); + int nid = folio_nid(old_folio); struct page *new_page; + struct folio *new_folio; int ret = 0; /* @@ -2745,16 +2749,17 @@ static int alloc_and_dissolve_huge_page(struct hstate *h, struct page *old_page, new_page = alloc_buddy_huge_page(h, gfp_mask, nid, NULL, NULL); if (!new_page) return -ENOMEM; - __prep_new_huge_page(h, new_page); + new_folio = page_folio(new_page); + __prep_new_hugetlb_folio(h, new_folio); retry: spin_lock_irq(&hugetlb_lock); - if (!PageHuge(old_page)) { + if (!folio_test_hugetlb(old_folio)) { /* * Freed from under us. Drop new_page too. */ goto free_new; - } else if (page_count(old_page)) { + } else if (folio_ref_count(old_folio)) { /* * Someone has grabbed the page, try to isolate it here. * Fail with -EBUSY if not possible. @@ -2763,7 +2768,7 @@ static int alloc_and_dissolve_huge_page(struct hstate *h, struct page *old_page, ret = isolate_hugetlb(old_page, list); spin_lock_irq(&hugetlb_lock); goto free_new; - } else if (!HPageFreed(old_page)) { + } else if (!folio_test_hugetlb(old_folio)) { /* * Page's refcount is 0 but it has not been enqueued in the * freelist yet. Race window is small, so we can succeed here if @@ -2801,7 +2806,7 @@ static int alloc_and_dissolve_huge_page(struct hstate *h, struct page *old_page, free_new: spin_unlock_irq(&hugetlb_lock); /* Page has a zero ref count, but needs a ref to be freed */ - set_page_refcounted(new_page); + folio_ref_unfreeze(new_folio, 1); update_and_free_page(h, new_page, false); return ret; diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index 600c98560a0f..692b23b5d423 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -212,7 +212,7 @@ static void hugetlb_cgroup_move_parent(int idx, struct hugetlb_cgroup *h_cg, /* Take the pages off the local counter */ page_counter_cancel(counter, nr_pages); - set_hugetlb_cgroup(page, parent); + set_hugetlb_cgroup(folio, parent); out: return; } @@ -894,6 +894,7 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage) struct hugetlb_cgroup *h_cg_rsvd; struct hstate *h = page_hstate(oldhpage); struct folio *old_folio = page_folio(oldhpage); + struct folio *new_folio = page_folio(newhpage); if (hugetlb_cgroup_disabled()) return; @@ -901,12 +902,12 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage) spin_lock_irq(&hugetlb_lock); h_cg = hugetlb_cgroup_from_folio(old_folio); h_cg_rsvd = hugetlb_cgroup_from_folio_rsvd(old_folio); - set_hugetlb_cgroup(oldhpage, NULL); - set_hugetlb_cgroup_rsvd(oldhpage, NULL); + set_hugetlb_cgroup(old_folio, NULL); + set_hugetlb_cgroup_rsvd(old_folio, NULL); /* move the h_cg details to new cgroup */ - set_hugetlb_cgroup(newhpage, h_cg); - set_hugetlb_cgroup_rsvd(newhpage, h_cg_rsvd); + set_hugetlb_cgroup(new_folio, h_cg); + set_hugetlb_cgroup_rsvd(new_folio, h_cg_rsvd); list_move(&newhpage->lru, &h->hugepage_activelist); spin_unlock_irq(&hugetlb_lock); return;