The patch titled
Subject: hugetlb: remove redundant validation in has_same_uncharge_info()
has been added to the -mm tree. Its filename is
hugetlb-remove-redundant-validation-in-has_same_uncharge_info.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/hugetlb-remove-redundant-validation-in-has_same_uncharge_info.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/hugetlb-remove-redundant-validation-in-has_same_uncharge_info.patch
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------------------------------------------------------
From: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Subject: hugetlb: remove redundant validation in has_same_uncharge_info()
The callers of has_same_uncharge_info() has accessed the original
file_region and new file_region, and they are impossible to be NULL now.
So we can remove the file_region validation in has_same_uncharge_info() to
simplify the code.
Link: https://lkml.kernel.org/r/97fc68d3f8d34f63c204645e10d7a718997e50b7.1634797639.git.baolin.wang@xxxxxxxxxxxxxxxxx
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/hugetlb.c~hugetlb-remove-redundant-validation-in-has_same_uncharge_info
+++ a/mm/hugetlb.c
@@ -332,8 +332,7 @@ static bool has_same_uncharge_info(struc
struct file_region *org)
{
#ifdef CONFIG_CGROUP_HUGETLB
- return rg && org &&
- rg->reservation_counter == org->reservation_counter &&
+ return rg->reservation_counter == org->reservation_counter &&
rg->css == org->css;
#else
_
Patches currently in -mm which might be from baolin.wang@xxxxxxxxxxxxxxxxx are
hugetlb-support-node-specified-when-using-cma-for-gigantic-hugepages.patch
hugetlb_cgroup-remove-unused-hugetlb_cgroup_from_counter-macro.patch
hugetlb-replace-the-obsolete-hugetlb_instantiation_mutex-in-the-comments.patch
hugetlb-remove-redundant-validation-in-has_same_uncharge_info.patch
hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range.patch
mm-migrate-simplify-the-file-backed-pages-validation-when-migrating-its-mapping.patch
