The patch titled
Subject: mm/hugetlb_cgroup: convert hugetlb_cgroup_uncharge_page() to folios
has been added to the -mm mm-unstable branch. Its filename is
mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Subject: mm/hugetlb_cgroup: convert hugetlb_cgroup_uncharge_page() to folios
Date: Tue, 1 Nov 2022 15:30:57 -0700
Continue to use a folio inside free_huge_page() by converting
hugetlb_cgroup_uncharge_page*() to folios.
Link: https://lkml.kernel.org/r/20221101223059.460937-8-sidhartha.kumar@xxxxxxxxxx
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
Cc: Bui Quang Minh <minhquangbui99@xxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Mina Almasry <almasrymina@xxxxxxxxxx>
Cc: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/hugetlb_cgroup.h | 16 ++++++++--------
mm/hugetlb.c | 15 +++++++++------
mm/hugetlb_cgroup.c | 21 ++++++++++-----------
3 files changed, 27 insertions(+), 25 deletions(-)
--- a/include/linux/hugetlb_cgroup.h~mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios
+++ a/include/linux/hugetlb_cgroup.h
@@ -158,10 +158,10 @@ extern void hugetlb_cgroup_commit_charge
extern void hugetlb_cgroup_commit_charge_rsvd(int idx, unsigned long nr_pages,
struct hugetlb_cgroup *h_cg,
struct page *page);
-extern void hugetlb_cgroup_uncharge_page(int idx, unsigned long nr_pages,
- struct page *page);
-extern void hugetlb_cgroup_uncharge_page_rsvd(int idx, unsigned long nr_pages,
- struct page *page);
+extern void hugetlb_cgroup_uncharge_folio(int idx, unsigned long nr_pages,
+ struct folio *folio);
+extern void hugetlb_cgroup_uncharge_folio_rsvd(int idx, unsigned long nr_pages,
+ struct folio *folio);
extern void hugetlb_cgroup_uncharge_cgroup(int idx, unsigned long nr_pages,
struct hugetlb_cgroup *h_cg);
@@ -254,14 +254,14 @@ hugetlb_cgroup_commit_charge_rsvd(int id
{
}
-static inline void hugetlb_cgroup_uncharge_page(int idx, unsigned long nr_pages,
- struct page *page)
+static inline void hugetlb_cgroup_uncharge_folio(int idx, unsigned long nr_pages,
+ struct folio *folio)
{
}
-static inline void hugetlb_cgroup_uncharge_page_rsvd(int idx,
+static inline void hugetlb_cgroup_uncharge_folio_rsvd(int idx,
unsigned long nr_pages,
- struct page *page)
+ struct folio *folio)
{
}
static inline void hugetlb_cgroup_uncharge_cgroup(int idx,
--- a/mm/hugetlb.c~mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios
+++ a/mm/hugetlb.c
@@ -1742,10 +1742,10 @@ void free_huge_page(struct page *page)
spin_lock_irqsave(&hugetlb_lock, flags);
folio_clear_hugetlb_migratable(folio);
- hugetlb_cgroup_uncharge_page(hstate_index(h),
- pages_per_huge_page(h), page);
- hugetlb_cgroup_uncharge_page_rsvd(hstate_index(h),
- pages_per_huge_page(h), page);
+ hugetlb_cgroup_uncharge_folio(hstate_index(h),
+ pages_per_huge_page(h), folio);
+ hugetlb_cgroup_uncharge_folio_rsvd(hstate_index(h),
+ pages_per_huge_page(h), folio);
if (restore_reserve)
h->resv_huge_pages++;
@@ -2870,6 +2870,7 @@ struct page *alloc_huge_page(struct vm_a
struct hugepage_subpool *spool = subpool_vma(vma);
struct hstate *h = hstate_vma(vma);
struct page *page;
+ struct folio *folio;
long map_chg, map_commit;
long gbl_chg;
int ret, idx;
@@ -2933,6 +2934,7 @@ struct page *alloc_huge_page(struct vm_a
* a reservation exists for the allocation.
*/
page = dequeue_huge_page_vma(h, vma, addr, avoid_reserve, gbl_chg);
+
if (!page) {
spin_unlock_irq(&hugetlb_lock);
page = alloc_buddy_huge_page_with_mpol(h, vma, addr);
@@ -2947,6 +2949,7 @@ struct page *alloc_huge_page(struct vm_a
set_page_refcounted(page);
/* Fall through */
}
+ folio = page_folio(page);
hugetlb_cgroup_commit_charge(idx, pages_per_huge_page(h), h_cg, page);
/* If allocation is not consuming a reservation, also store the
* hugetlb_cgroup pointer on the page.
@@ -2976,8 +2979,8 @@ struct page *alloc_huge_page(struct vm_a
rsv_adjust = hugepage_subpool_put_pages(spool, 1);
hugetlb_acct_memory(h, -rsv_adjust);
if (deferred_reserve)
- hugetlb_cgroup_uncharge_page_rsvd(hstate_index(h),
- pages_per_huge_page(h), page);
+ hugetlb_cgroup_uncharge_folio_rsvd(hstate_index(h),
+ pages_per_huge_page(h), folio);
}
return page;
--- a/mm/hugetlb_cgroup.c~mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios
+++ a/mm/hugetlb_cgroup.c
@@ -346,11 +346,10 @@ void hugetlb_cgroup_commit_charge_rsvd(i
/*
* Should be called with hugetlb_lock held
*/
-static void __hugetlb_cgroup_uncharge_page(int idx, unsigned long nr_pages,
- struct page *page, bool rsvd)
+static void __hugetlb_cgroup_uncharge_folio(int idx, unsigned long nr_pages,
+ struct folio *folio, bool rsvd)
{
struct hugetlb_cgroup *h_cg;
- struct folio *folio = page_folio(page);
if (hugetlb_cgroup_disabled())
return;
@@ -368,27 +367,27 @@ static void __hugetlb_cgroup_uncharge_pa
css_put(&h_cg->css);
else {
unsigned long usage =
- h_cg->nodeinfo[page_to_nid(page)]->usage[idx];
+ h_cg->nodeinfo[folio_nid(folio)]->usage[idx];
/*
* This write is not atomic due to fetching usage and writing
* to it, but that's fine because we call this with
* hugetlb_lock held anyway.
*/
- WRITE_ONCE(h_cg->nodeinfo[page_to_nid(page)]->usage[idx],
+ WRITE_ONCE(h_cg->nodeinfo[folio_nid(folio)]->usage[idx],
usage - nr_pages);
}
}
-void hugetlb_cgroup_uncharge_page(int idx, unsigned long nr_pages,
- struct page *page)
+void hugetlb_cgroup_uncharge_folio(int idx, unsigned long nr_pages,
+ struct folio *folio)
{
- __hugetlb_cgroup_uncharge_page(idx, nr_pages, page, false);
+ __hugetlb_cgroup_uncharge_folio(idx, nr_pages, folio, false);
}
-void hugetlb_cgroup_uncharge_page_rsvd(int idx, unsigned long nr_pages,
- struct page *page)
+void hugetlb_cgroup_uncharge_folio_rsvd(int idx, unsigned long nr_pages,
+ struct folio *folio)
{
- __hugetlb_cgroup_uncharge_page(idx, nr_pages, page, true);
+ __hugetlb_cgroup_uncharge_folio(idx, nr_pages, folio, true);
}
static void __hugetlb_cgroup_uncharge_cgroup(int idx, unsigned long nr_pages,
_
Patches currently in -mm which might be from sidhartha.kumar@xxxxxxxxxx are
mm-hugetlb-add-folio-support-to-hugetlb-specific-flag-macros.patch
mm-add-private-field-of-first-tail-to-struct-page-and-struct-folio.patch
mm-hugetlb-add-hugetlb_folio_subpool-helpers.patch
hugetlbfs-convert-hugetlb_delete_from_page_cache-to-use-folios.patch
mm-hugetlb-add-folio_hstate.patch
mm-hugetlb_cgroup-convert-__set_hugetlb_cgroup-to-folios.patch
mm-hugetlb_cgroup-convert-hugetlb_cgroup_from_page-to-folios.patch
mm-hugetlb_cgroup-convert-set_hugetlb_cgroup-to-folios.patch
mm-hugetlb_cgroup-convert-hugetlb_cgroup_migrate-to-folios.patch
mm-hugetlb-convert-isolate_or_dissolve_huge_page-to-folios.patch
mm-hugetlb-convert-free_huge_page-to-folios.patch
mm-hugetlb_cgroup-convert-hugetlb_cgroup_uncharge_page-to-folios.patch
mm-hugeltb_cgroup-convert-hugetlb_cgroup_commit_charge-to-folios.patch
mm-hugetlb-convert-move_hugetlb_state-to-folios.patch
