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author | Ingo Molnar <mingo@kernel.org> | 2016-02-18 08:28:03 (GMT) |
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committer | Ingo Molnar <mingo@kernel.org> | 2016-02-18 08:28:03 (GMT) |
commit | 3a2f2ac9b96f9a9f5538396a212d3b9fb543bfc5 (patch) | |
tree | 294c2f340b11584e58cea90adfc4182ac8742348 /arch/x86/mm | |
parent | 4e79e182b419172e35936a47f098509092d69817 (diff) | |
parent | f4eafd8bcd5229e998aa252627703b8462c3b90f (diff) | |
download | linux-3a2f2ac9b96f9a9f5538396a212d3b9fb543bfc5.tar.xz |
Merge branch 'x86/urgent' into x86/asm, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r-- | arch/x86/mm/fault.c | 15 | ||||
-rw-r--r-- | arch/x86/mm/hugetlbpage.c | 4 | ||||
-rw-r--r-- | arch/x86/mm/numa.c | 2 | ||||
-rw-r--r-- | arch/x86/mm/pageattr.c | 4 |
4 files changed, 16 insertions, 9 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index eef44d9..e830c71 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -287,6 +287,9 @@ static noinline int vmalloc_fault(unsigned long address) if (!pmd_k) return -1; + if (pmd_huge(*pmd_k)) + return 0; + pte_k = pte_offset_kernel(pmd_k, address); if (!pte_present(*pte_k)) return -1; @@ -360,8 +363,6 @@ void vmalloc_sync_all(void) * 64-bit: * * Handle a fault on the vmalloc area - * - * This assumes no large pages in there. */ static noinline int vmalloc_fault(unsigned long address) { @@ -403,17 +404,23 @@ static noinline int vmalloc_fault(unsigned long address) if (pud_none(*pud_ref)) return -1; - if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref)) + if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref)) BUG(); + if (pud_huge(*pud)) + return 0; + pmd = pmd_offset(pud, address); pmd_ref = pmd_offset(pud_ref, address); if (pmd_none(*pmd_ref)) return -1; - if (pmd_none(*pmd) || pmd_page(*pmd) != pmd_page(*pmd_ref)) + if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref)) BUG(); + if (pmd_huge(*pmd)) + return 0; + pte_ref = pte_offset_kernel(pmd_ref, address); if (!pte_present(*pte_ref)) return -1; diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 42982b2..740d7ac 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -173,10 +173,10 @@ static __init int setup_hugepagesz(char *opt) } __setup("hugepagesz=", setup_hugepagesz); -#ifdef CONFIG_CMA +#if (defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA) static __init int gigantic_pages_init(void) { - /* With CMA we can allocate gigantic pages at runtime */ + /* With compaction or CMA we can allocate gigantic pages at runtime */ if (cpu_has_gbpages && !size_to_hstate(1UL << PUD_SHIFT)) hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); return 0; diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index c3b3f65..d04f809 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -469,7 +469,7 @@ static void __init numa_clear_kernel_node_hotplug(void) { int i, nid; nodemask_t numa_kernel_nodes = NODE_MASK_NONE; - unsigned long start, end; + phys_addr_t start, end; struct memblock_region *r; /* diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index fc6a4c8..2440814 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -33,7 +33,7 @@ struct cpa_data { pgd_t *pgd; pgprot_t mask_set; pgprot_t mask_clr; - int numpages; + unsigned long numpages; int flags; unsigned long pfn; unsigned force_split : 1; @@ -1350,7 +1350,7 @@ static int __change_page_attr_set_clr(struct cpa_data *cpa, int checkalias) * CPA operation. Either a large page has been * preserved or a single page update happened. */ - BUG_ON(cpa->numpages > numpages); + BUG_ON(cpa->numpages > numpages || !cpa->numpages); numpages -= cpa->numpages; if (cpa->flags & (CPA_PAGES_ARRAY | CPA_ARRAY)) cpa->curpage++; |