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    Subject[PATCH 06/59] CRED: Wrap task credential accesses in the x86 arch
    Date
    Wrap access to task credentials so that they can be separated more easily from
    the task_struct during the introduction of COW creds.

    Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

    Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
    sense to use RCU directly rather than a convenient wrapper; these will be
    addressed by later patches.

    Signed-off-by: David Howells <dhowells@redhat.com>
    Reviewed-by: James Morris <jmorris@namei.org>
    Acked-by: Serge Hallyn <serue@us.ibm.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: H. Peter Anvin <hpa@zytor.com>
    ---

    arch/x86/mm/fault.c | 2 +-
    1 files changed, 1 insertions(+), 1 deletions(-)


    diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
    index b9f367f..17d74be 100644
    --- a/arch/x86/mm/fault.c
    +++ b/arch/x86/mm/fault.c
    @@ -395,7 +395,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
    if (pte && pte_present(*pte) && !pte_exec(*pte))
    printk(KERN_CRIT "kernel tried to execute "
    "NX-protected page - exploit attempt? "
    - "(uid: %d)\n", current->uid);
    + "(uid: %d)\n", current_uid());
    }
    #endif



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