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| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2017-08-11 16:46:51 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-15 21:48:07 -0700 |
| commit | 4dbe87d5a70215af714b8ad44303ae7b333a2d20 (patch) | |
| tree | 2050328a3b5a64c74aa1c0c86d0034a25a5875cc /arch/sparc/mm | |
| parent | df7b2155bbe75525531e47c8a67ae4f1dbbae976 (diff) | |
| download | linux-4dbe87d5a70215af714b8ad44303ae7b333a2d20.tar.bz2 | |
sparc64: Cleanup hugepage table walk functions
Flatten out nested code structure in huge_pte_offset()
and huge_pte_alloc().
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm')
| -rw-r--r-- | arch/sparc/mm/hugetlbpage.c | 54 |
1 files changed, 20 insertions, 34 deletions
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c index 7acb84db952c..bcd8cdbc377f 100644 --- a/arch/sparc/mm/hugetlbpage.c +++ b/arch/sparc/mm/hugetlbpage.c @@ -266,27 +266,19 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, pgd_t *pgd; pud_t *pud; pmd_t *pmd; - pte_t *pte = NULL; pgd = pgd_offset(mm, addr); pud = pud_alloc(mm, pgd, addr); if (!pud) return NULL; - if (sz >= PUD_SIZE) - pte = (pte_t *)pud; - else { - pmd = pmd_alloc(mm, pud, addr); - if (!pmd) - return NULL; - - if (sz >= PMD_SIZE) - pte = (pte_t *)pmd; - else - pte = pte_alloc_map(mm, pmd, addr); - } - - return pte; + return (pte_t *)pud; + pmd = pmd_alloc(mm, pud, addr); + if (!pmd) + return NULL; + if (sz >= PMD_SIZE) + return (pte_t *)pmd; + return pte_alloc_map(mm, pmd, addr); } pte_t *huge_pte_offset(struct mm_struct *mm, @@ -295,27 +287,21 @@ pte_t *huge_pte_offset(struct mm_struct *mm, pgd_t *pgd; pud_t *pud; pmd_t *pmd; - pte_t *pte = NULL; pgd = pgd_offset(mm, addr); - if (!pgd_none(*pgd)) { - pud = pud_offset(pgd, addr); - if (!pud_none(*pud)) { - if (is_hugetlb_pud(*pud)) - pte = (pte_t *)pud; - else { - pmd = pmd_offset(pud, addr); - if (!pmd_none(*pmd)) { - if (is_hugetlb_pmd(*pmd)) - pte = (pte_t *)pmd; - else - pte = pte_offset_map(pmd, addr); - } - } - } - } - - return pte; + if (pgd_none(*pgd)) + return NULL; + pud = pud_offset(pgd, addr); + if (pud_none(*pud)) + return NULL; + if (is_hugetlb_pud(*pud)) + return (pte_t *)pud; + pmd = pmd_offset(pud, addr); + if (pmd_none(*pmd)) + return NULL; + if (is_hugetlb_pmd(*pmd)) + return (pte_t *)pmd; + return pte_offset_map(pmd, addr); } void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, |