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authorMauro Carvalho Chehab <mchehab@redhat.com>2013-04-30 09:00:33 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-04-30 09:00:33 -0300
commitaad797c89903d570c17f6affc770eb98afd74e62 (patch)
treebddefd4242b0efba1068b5260f831c2697ba4037 /arch/x86/mm/fault.c
parentc95789ecd5a979fd718ae09763df3fa50dd97a91 (diff)
parentc1be5a5b1b355d40e6cf79cc979eb66dafa24ad1 (diff)
Merge tag 'v3.9' into v4l_for_linus
Linux 3.9 * tag 'v3.9': (1099 commits) Linux 3.9 vm: add no-mmu vm_iomap_memory() stub efivars: only check for duplicates on the registered list TTY: fix atime/mtime regression aio: fix possible invalid memory access when DEBUG is enabled parisc: use spin_lock_irqsave/spin_unlock_irqrestore for PTE updates parisc: disable -mlong-calls compiler option for kernel modules parisc: uaccess: fix compiler warnings caused by __put_user casting parisc: Change kunmap macro to static inline function parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds. sparc64: Fix missing put_cpu_var() in tlb_batch_add_one() when not batching. Revert "gpio: pxa: set initcall level to module init" efi: Check EFI revision in setup_efi_vars x86, efi: Fix a build warning Revert "MIPS: page.h: Provide more readable definition for PAGE_MASK." kernel/hz.bc: ignore. Linux 3.9-rc8 events: Protect access via task_subsys_state_check() net: fix incorrect credentials passing x86, microcode: Verify the family before dispatching microcode patching ...
Diffstat (limited to 'arch/x86/mm/fault.c')
-rw-r--r--arch/x86/mm/fault.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 2b97525246d4..0e883364abb5 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -378,10 +378,12 @@ static noinline __kprobes int vmalloc_fault(unsigned long address)
if (pgd_none(*pgd_ref))
return -1;
- if (pgd_none(*pgd))
+ if (pgd_none(*pgd)) {
set_pgd(pgd, *pgd_ref);
- else
+ arch_flush_lazy_mmu_mode();
+ } else {
BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+ }
/*
* Below here mismatches are bugs because these lower tables