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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-03-17 14:19:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 15:09:34 -0700
commit3ed3a4f0ddffece942bb2661924d87be4ce63cb7 (patch)
tree3b47bba0ba26a0301339f4989a57346e0f76b989 /arch/arm64/mm/hugetlbpage.c
parentvirtio_balloon: export 'available' memory to balloon statistics (diff)
downloadlinux-dev-3ed3a4f0ddffece942bb2661924d87be4ce63cb7.tar.xz
linux-dev-3ed3a4f0ddffece942bb2661924d87be4ce63cb7.zip
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 '')
-rw-r--r--arch/arm64/mm/hugetlbpage.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index da30529bb1f6..589fd28e1fb5 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -124,7 +124,7 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
* will be no pte_unmap() to correspond with this
* pte_alloc_map().
*/
- pte = pte_alloc_map(mm, NULL, pmd, addr);
+ pte = pte_alloc_map(mm, pmd, addr);
} else if (sz == PMD_SIZE) {
if (IS_ENABLED(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) &&
pud_none(*pud))