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Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

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Pull powerpc fix fro, Benjamin Herrenschmidt:
 "We accidentally broke hugetlbfs on Freescale embedded processors which
  use a slightly different page table layout than our server processors"

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix bad pmd error with book3E config
This commit is contained in:
Linus Torvalds 2013-06-20 08:08:46 -10:00
commit 53d5defcfa
1 changed files with 7 additions and 1 deletions
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8
arch/powerpc/mm/hugetlbpage.c
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@ -592,8 +592,14 @@ static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
do {
pmd = pmd_offset(pud, addr);
next = pmd_addr_end(addr, end);
if (pmd_none_or_clear_bad(pmd))
if (!is_hugepd(pmd)) {
/*
* if it is not hugepd pointer, we should already find
* it cleared.
*/
WARN_ON(!pmd_none_or_clear_bad(pmd));
continue;
}
#ifdef CONFIG_PPC_FSL_BOOK3E
/*
* Increment next by the size of the huge mapping since