diff options
| author | Oliver O'Halloran <oohall@gmail.com> | 2017-08-02 10:37:33 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2017-08-02 10:37:33 +1000 |
| commit | 74affe9e243473a30f0aa1bb2e1a554c7bada3e8 (patch) | |
| tree | 59b0aaf236ec19b88246a172539acee7bb8be69d /mm | |
| parent | 0c19b34f9dd3f36276e907fb31d5ae9164f1a3a1 (diff) | |
mm/gup: make __gup_device_* require THP
These functions are the only bits of generic code that use {pud,pmd}_pfn()
without checking for CONFIG_TRANSPARENT_HUGEPAGE. This works fine on x86,
the only arch with devmap support, since the *_pfn() functions are always
defined there, but this isn't true for every architecture.
Link: http://lkml.kernel.org/r/20170626063833.11094-1-oohall@gmail.com
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/gup.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1370,7 +1370,7 @@ static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end, } #endif /* __HAVE_ARCH_PTE_SPECIAL */ -#ifdef __HAVE_ARCH_PTE_DEVMAP +#if defined(__HAVE_ARCH_PTE_DEVMAP) && defined(CONFIG_TRANSPARENT_HUGEPAGE) static int __gup_device_huge(unsigned long pfn, unsigned long addr, unsigned long end, struct page **pages, int *nr) { |