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z3fold: simplify the zhdr initialization code in init_z3fold_page()

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We can simplify the zhdr initialization by memset() the zhdr first
instead of set struct member to zero one by one.  This would also make
code more compact and clear.

Link: https://lkml.kernel.org/r/20210120085851.16159-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2021-02-24 12:09:22 -08:00 committed by Linus Torvalds
parent 70ad3196a6
commit c457cd96f1
1 changed files with 1 additions and 7 deletions
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8
mm/z3fold.c
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@ -413,16 +413,10 @@ static struct z3fold_header *init_z3fold_page(struct page *page, bool headless,
if (!slots)
return NULL;
memset(zhdr, 0, sizeof(*zhdr));
spin_lock_init(&zhdr->page_lock);
kref_init(&zhdr->refcount);
zhdr->first_chunks = 0;
zhdr->middle_chunks = 0;
zhdr->last_chunks = 0;
zhdr->first_num = 0;
zhdr->start_middle = 0;
zhdr->cpu = -1;
zhdr->foreign_handles = 0;
zhdr->mapped_count = 0;
zhdr->slots = slots;
zhdr->pool = pool;
INIT_LIST_HEAD(&zhdr->buddy);