The patch titled
Subject: hugetlb_cgroup: remove unneeded nr_pages > 0 check
has been added to the -mm mm-unstable branch. Its filename is
hugetlb_cgroup-remove-unneeded-nr_pages-0-check.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/hugetlb_cgroup-remove-unneeded-nr_pages-0-check.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: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: hugetlb_cgroup: remove unneeded nr_pages > 0 check
Date: Fri, 29 Jul 2022 16:01:02 +0800
Patch series "A few cleanup patches for hugetlb_cgroup", v2.
This series contains a few cleaup patches to remove unneeded check, use
helper macro, remove unneeded return value and so on. More details can be
found in the respective changelogs.
This patch (of 5):
When code reaches here, nr_pages must be > 0. Remove unneeded nr_pages > 0
check to simplify the code.
Link: https://lkml.kernel.org/r/20220729080106.12752-1-linmiaohe@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20220729080106.12752-2-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Mina Almasry <almasrymina@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb_cgroup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/hugetlb_cgroup.c~hugetlb_cgroup-remove-unneeded-nr_pages-0-check
+++ a/mm/hugetlb_cgroup.c
@@ -442,7 +442,7 @@ void hugetlb_cgroup_uncharge_file_region
if (hugetlb_cgroup_disabled() || !resv || !rg || !nr_pages)
return;
- if (rg->reservation_counter && resv->pages_per_hpage && nr_pages > 0 &&
+ if (rg->reservation_counter && resv->pages_per_hpage &&
!resv->reservation_counter) {
page_counter_uncharge(rg->reservation_counter,
nr_pages * resv->pages_per_hpage);
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
mm-hugetlb-avoid-corrupting-page-mapping-in-hugetlb_mcopy_atomic_pte.patch
mm-page_alloc-minor-clean-up-for-memmap_init_compound.patch
hugetlb_cgroup-remove-unneeded-nr_pages-0-check.patch
hugetlb_cgroup-hugetlbfs-use-helper-macro-sz_1kmg.patch
hugetlb_cgroup-remove-unneeded-return-value.patch
hugetlb_cgroup-use-helper-macro-numa_no_node.patch
hugetlb_cgroup-use-helper-for_each_hstate-and-hstate_index.patch
