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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-06-20 08:08:46 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-06-20 08:08:46 -1000 |
| commit | 53d5defcfa8c9603554a3174cbe206fb69f6e8ef (patch) | |
| tree | 2b1429170872fce52b88f48cdef565d104fdf1df | |
| parent | f92d0dc95d137c0abe7d1478d6e7d2cf4ca5fce8 (diff) | |
| parent | 8bbd9f04b7d982d1c6aeb5c08f5983b3d0b9e2fe (diff) | |
| download | linux-53d5defcfa8c9603554a3174cbe206fb69f6e8ef.tar.gz | |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
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
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 237c8e5f2640..77fdd2cef33b 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -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 |