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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2016-03-18 00:19:11 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-18 01:09:34 +0300 |
| commit | 3ed3a4f0ddffece942bb2661924d87be4ce63cb7 (patch) | |
| tree | 3b47bba0ba26a0301339f4989a57346e0f76b989 /arch/ia64/mm | |
| parent | 5057dcd0f1aaad57e07e728ba20a99e205c6b9de (diff) | |
| download | linux-3ed3a4f0ddffece942bb2661924d87be4ce63cb7.tar.xz | |
mm: cleanup *pte_alloc* interfaces
There are few things about *pte_alloc*() helpers worth cleaning up:
- 'vma' argument is unused, let's drop it;
- most __pte_alloc() callers do speculative check for pmd_none(),
before taking ptl: let's introduce pte_alloc() macro which does
the check.
The only direct user of __pte_alloc left is userfaultfd, which has
different expectation about atomicity wrt pmd.
- pte_alloc_map() and pte_alloc_map_lock() are redefined using
pte_alloc().
[sudeep.holla@arm.com: fix build for arm64 hugetlbpage]
[sfr@canb.auug.org.au: fix arch/arm/mm/mmu.c some more]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64/mm')
| -rw-r--r-- | arch/ia64/mm/hugetlbpage.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index f50d4b3f501a..85de86d36fdf 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c @@ -38,7 +38,7 @@ huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) if (pud) { pmd = pmd_alloc(mm, pud, taddr); if (pmd) - pte = pte_alloc_map(mm, NULL, pmd, taddr); + pte = pte_alloc_map(mm, pmd, taddr); } return pte; } |