[PATCH v2 8/9] mm/hugeltb_cgroup: convert hugetlb_cgroup_commit_charge*() to folios

Sidhartha Kumar
2022-11-01T22:33:20Z

Convert hugetlb_cgroup_commit_charge*() to internally use folios to clean
up the code after __set_hugetlb_cgroup() was changed to take a folio.

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
mm/hugetlb_cgroup.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index 7793401acc12..69939c233f4f 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -313,21 +313,21 @@ int hugetlb_cgroup_charge_cgroup_rsvd(int idx, unsigned long nr_pages,
/* Should be called with hugetlb_lock held */
static void __hugetlb_cgroup_commit_charge(int idx, unsigned long nr_pages,
struct hugetlb_cgroup *h_cg,
- struct page *page, bool rsvd)
+ struct folio *folio, bool rsvd)
{
if (hugetlb_cgroup_disabled() || !h_cg)
return;

- __set_hugetlb_cgroup(page_folio(page), h_cg, rsvd);
+ __set_hugetlb_cgroup(folio, h_cg, rsvd);
if (!rsvd) {
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);
}
}
@@ -336,14 +336,18 @@ void hugetlb_cgroup_commit_charge(int idx, unsigned long nr_pages,
struct hugetlb_cgroup *h_cg,
struct page *page)
{
- __hugetlb_cgroup_commit_charge(idx, nr_pages, h_cg, page, false);
+ struct folio *folio = page_folio(page);
+
+ __hugetlb_cgroup_commit_charge(idx, nr_pages, h_cg, folio, false);
}

void hugetlb_cgroup_commit_charge_rsvd(int idx, unsigned long nr_pages,
struct hugetlb_cgroup *h_cg,
struct page *page)
{
- __hugetlb_cgroup_commit_charge(idx, nr_pages, h_cg, page, true);
+ struct folio *folio = page_folio(page);
+
+ __hugetlb_cgroup_commit_charge(idx, nr_pages, h_cg, folio, true);
}

/*
--
2.31.1