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hugetlbfs: make hugepage size conversion more readable 

The calculation 1U << (h->order + PAGE_SHIFT - 10) is actually equal to
(PAGE_SHIFT << (h->order)) >> 10.  So we can make it more readable by
replace it with huge_page_size(h) >> 10.

Link: https://lkml.kernel.org/r/20210122083141.24548-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.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 12:10:14 -08:00 committed by Linus Torvalds
parent 88ce3fef47
commit a25fddced8
1 changed files with 2 additions and 2 deletions
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4
fs/hugetlbfs/inode.c
View File

@ -1520,8 +1520,8 @@ static struct vfsmount *__init mount_one_hugetlbfs(struct hstate *h)
put_fs_context(fc);
}
if (IS_ERR(mnt))
pr_err("Cannot mount internal hugetlbfs for page size %uK",
1U << (h->order + PAGE_SHIFT - 10));
pr_err("Cannot mount internal hugetlbfs for page size %luK",
huge_page_size(h) >> 10);
return mnt;
}