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userfaultfd: convert copy_huge_page_from_user() to copy_folio_from_user()

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Replace copy_huge_page_from_user() with copy_folio_from_user(). 
copy_folio_from_user() does the same as copy_huge_page_from_user(), but
takes in a folio instead of a page.

Convert page_kaddr to kaddr in copy_folio_from_user() to do indenting
cleanup.

Link: https://lkml.kernel.org/r/20230410133932.32288-4-zhangpeng362@huawei.com
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
ZhangPeng
2023-04-10 21:39:29 +08:00
committed by Andrew Morton
parent 0d508c1f0e
commit e87340ca5c
4 changed files with 18 additions and 23 deletions
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5
mm/hugetlb.c
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@@ -6217,9 +6217,8 @@ int hugetlb_mfill_atomic_pte(pte_t *dst_pte,
goto out;
}
ret = copy_huge_page_from_user(&folio->page,
(const void __user *) src_addr,
pages_per_huge_page(h), false);
ret = copy_folio_from_user(folio, (const void __user *) src_addr,
false);
/* fallback to copy_from_user outside mmap_lock */
if (unlikely(ret)) {