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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-03-18 00:19:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-18 01:09:34 +0300
commit3ed3a4f0ddffece942bb2661924d87be4ce63cb7 (patch)
tree3b47bba0ba26a0301339f4989a57346e0f76b989 /arch/ia64
parent5057dcd0f1aaad57e07e728ba20a99e205c6b9de (diff)
downloadlinux-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')
-rw-r--r--arch/ia64/mm/hugetlbpage.c2
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;
}