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| author | David Gibson <david@gibson.dropbear.id.au> | 2008-10-12 17:54:24 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-14 10:35:27 +1100 |
| commit | f5ea64dcbad89875d130596df14c9b25d994a737 (patch) | |
| tree | 03bde08104ea5c29edcaafc11576eb5594a7426c /arch/powerpc/mm/gup.c | |
| parent | cd301c7ba4bbb5a0ee6ebf13eb4a304f29b13847 (diff) | |
| download | linux-f5ea64dcbad89875d130596df14c9b25d994a737.tar.gz linux-f5ea64dcbad89875d130596df14c9b25d994a737.tar.bz2 linux-f5ea64dcbad89875d130596df14c9b25d994a737.zip | |
powerpc: Get USE_STRICT_MM_TYPECHECKS working again
The typesafe version of the powerpc pagetable handling (with
USE_STRICT_MM_TYPECHECKS defined) has bitrotted again. This patch
makes a bunch of small fixes to get it back to building status.
It's still not enabled by default as gcc still generates worse
code with it for some reason.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/gup.c')
| -rw-r--r-- | arch/powerpc/mm/gup.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/powerpc/mm/gup.c b/arch/powerpc/mm/gup.c index 9fdf4d6335e4..28a114db3ba0 100644 --- a/arch/powerpc/mm/gup.c +++ b/arch/powerpc/mm/gup.c @@ -41,7 +41,7 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr, page = pte_page(pte); if (!page_cache_get_speculative(page)) return 0; - if (unlikely(pte != *ptep)) { + if (unlikely(pte_val(pte) != pte_val(*ptep))) { put_page(page); return 0; } @@ -92,7 +92,7 @@ static noinline int gup_huge_pte(pte_t *ptep, struct hstate *hstate, *nr -= refs; return 0; } - if (unlikely(pte != *ptep)) { + if (unlikely(pte_val(pte) != pte_val(*ptep))) { /* Could be optimized better */ while (*nr) { put_page(page); @@ -237,7 +237,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, pgd_t pgd = *pgdp; VM_BUG_ON(shift != mmu_psize_defs[get_slice_psize(mm, addr)].shift); - pr_debug(" %016lx: normal pgd %p\n", addr, (void *)pgd); + pr_debug(" %016lx: normal pgd %p\n", addr, + (void *)pgd_val(pgd)); next = pgd_addr_end(addr, end); if (pgd_none(pgd)) goto slow; |