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    Subject[tip:x86/vdso] x86, vdso: Unmap vdso pages
    Commit-ID:  be783a47214afc5a0aea9dafcbd9f1535ba05e94
    Gitweb: http://git.kernel.org/tip/be783a47214afc5a0aea9dafcbd9f1535ba05e94
    Author: Shaohua Li <shaohua.li@intel.com>
    AuthorDate: Mon, 2 Aug 2010 08:49:34 +0800
    Committer: H. Peter Anvin <hpa@linux.intel.com>
    CommitDate: Mon, 2 Aug 2010 15:11:59 -0700

    x86, vdso: Unmap vdso pages

    We mapped vdso pages but never unmapped them and the virtual address
    is lost after exiting from the function, so unmap vdso pages here.

    Signed-off-by: Shaohua Li <shaohua.li@intel.com>
    LKML-Reference: <20100802004934.GA2505@sli10-desk.sh.intel.com>
    Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
    ---
    arch/x86/vdso/vma.c | 1 +
    1 files changed, 1 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
    index ac74869..80f23ed 100644
    --- a/arch/x86/vdso/vma.c
    +++ b/arch/x86/vdso/vma.c
    @@ -67,6 +67,7 @@ static int __init init_vdso_vars(void)
    *(typeof(__ ## x) **) var_ref(VDSO64_SYMBOL(vbase, x), #x) = &__ ## x;
    #include "vextern.h"
    #undef VEXTERN
    + vunmap(vbase);
    return 0;

    oom:

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