aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sparc/mm
diff options
context:
space:
mode:
authorNitin Gupta <nitin.m.gupta@oracle.com>2017-08-11 16:46:51 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-15 21:48:07 -0700
commit4dbe87d5a70215af714b8ad44303ae7b333a2d20 (patch)
tree2050328a3b5a64c74aa1c0c86d0034a25a5875cc /arch/sparc/mm
parentsparc64: Add 16GB hugepage support (diff)
downloadlinux-dev-4dbe87d5a70215af714b8ad44303ae7b333a2d20.tar.xz
linux-dev-4dbe87d5a70215af714b8ad44303ae7b333a2d20.zip
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.c54
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,