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Subject[PATCH v2 03/10] hugetlb: Use LIST_HEAD() to define a list head
Date
Use LIST_HEAD() directly to define a list head to simplify the code.
No functional change intended.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
---
mm/hugetlb.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0d63a7fda1d9..94cb81e9b4df 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -459,14 +459,12 @@ static int allocate_file_region_entries(struct resv_map *resv,
int regions_needed)
__must_hold(&resv->lock)
{
- struct list_head allocated_regions;
+ LIST_HEAD(allocated_regions);
int to_allocate = 0, i = 0;
struct file_region *trg = NULL, *rg = NULL;

VM_BUG_ON(regions_needed < 0);

- INIT_LIST_HEAD(&allocated_regions);
-
/*
* Check for sufficient descriptors in the cache to accommodate
* the number of in progress add operations plus regions_needed.
@@ -2352,7 +2350,7 @@ struct page *alloc_huge_page_vma(struct hstate *h, struct vm_area_struct *vma,
static int gather_surplus_pages(struct hstate *h, long delta)
__must_hold(&hugetlb_lock)
{
- struct list_head surplus_list;
+ LIST_HEAD(surplus_list);
struct page *page, *tmp;
int ret;
long i;
@@ -2367,7 +2365,6 @@ static int gather_surplus_pages(struct hstate *h, long delta)
}

allocated = 0;
- INIT_LIST_HEAD(&surplus_list);

ret = -ENOMEM;
retry:
--
2.23.0
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