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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-30 01:58:18 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-30 01:58:18 -0500 |
| commit | f0612bbc41f65f5a684f69d714a1a17a6f0f40c5 (patch) | |
| tree | 8c070070bb355843cfa4635643e9da7c2c4cd44a /arch/ppc64/kernel/vdso.c | |
| parent | b0c4e148bd591629749d02a8fbc8d81c26d548cf (diff) | |
| parent | 81cfb8864c73230eb1c37753aba517db15cf4d8f (diff) | |
Merge branch 'upstream'
Diffstat (limited to 'arch/ppc64/kernel/vdso.c')
| -rw-r--r-- | arch/ppc64/kernel/vdso.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/ppc64/kernel/vdso.c b/arch/ppc64/kernel/vdso.c index efa985f05ac..4aacf521e3e 100644 --- a/arch/ppc64/kernel/vdso.c +++ b/arch/ppc64/kernel/vdso.c @@ -176,13 +176,13 @@ static struct page * vdso_vma_nopage(struct vm_area_struct * vma, return NOPAGE_SIGBUS; /* - * Last page is systemcfg, special handling here, no get_page() a - * this is a reserved page + * Last page is systemcfg. */ if ((vma->vm_end - address) <= PAGE_SIZE) - return virt_to_page(systemcfg); + pg = virt_to_page(systemcfg); + else + pg = virt_to_page(vbase + offset); - pg = virt_to_page(vbase + offset); get_page(pg); DBG(" ->page count: %d\n", page_count(pg)); @@ -259,7 +259,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack) * gettimeofday will be totally dead. It's fine to use that for setting * breakpoints in the vDSO code pages though */ - vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC; + vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC | VM_RESERVED; vma->vm_flags |= mm->def_flags; vma->vm_page_prot = protection_map[vma->vm_flags & 0x7]; vma->vm_ops = &vdso_vmops; @@ -603,6 +603,8 @@ void __init vdso_init(void) ClearPageReserved(pg); get_page(pg); } + + get_page(virt_to_page(systemcfg)); } int in_gate_area_no_task(unsigned long addr) |