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mm/hugetlb: simplify the code when alloc_huge_page() failed in hugetlb_no_page()

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Rework the error handling code when alloc_huge_page() failed to remove
some duplicated code and simplify the code slightly.

Link: https://lkml.kernel.org/r/20210308112809.26107-5-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: 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 2021-05-04 18:33:31 -07:00 • committed by Linus Torvalds
parent 5c8ecb131a
commit d83e6c8a9b
1 changed files with 3 additions and 6 deletions
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9
mm/hugetlb.c
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@ -4395,13 +4395,10 @@ retry:
* sure there really is no pte entry. * sure there really is no pte entry.
*/ */
ptl = huge_pte_lock(h, mm, ptep); ptl = huge_pte_lock(h, mm, ptep);
if (!huge_pte_none(huge_ptep_get(ptep))) { ret = 0;
ret = 0; if (huge_pte_none(huge_ptep_get(ptep)))
spin_unlock(ptl); ret = vmf_error(PTR_ERR(page));
goto out;
}
spin_unlock(ptl); spin_unlock(ptl);
ret = vmf_error(PTR_ERR(page));
goto out; goto out;
} }
clear_huge_page(page, address, pages_per_huge_page(h)); clear_huge_page(page, address, pages_per_huge_page(h));