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    Subject[PATCH -rt] ARM TLB flush fix: don't forget to re-enable preemption
    Add a preempt_enable() to flush_tlb_kernel_page() since -rt4 patch
    adds a preempt_disable but no preempt_enable().

    Signed-off-by: Kevin Hilman <khilman@mvista.com>


    ---
    include/asm-arm/tlbflush.h | 1 +
    1 file changed, 1 insertion(+)

    Index: linux-2.6.21/include/asm-arm/tlbflush.h
    ===================================================================
    --- linux-2.6.21.orig/include/asm-arm/tlbflush.h
    +++ linux-2.6.21/include/asm-arm/tlbflush.h
    @@ -378,6 +378,7 @@ static inline void local_flush_tlb_kerne
    asm("mcr p15, 0, %0, c8, c6, 1" : : "r" (kaddr) : "cc");
    if (tlb_flag(TLB_V6_I_PAGE))
    asm("mcr p15, 0, %0, c8, c5, 1" : : "r" (kaddr) : "cc");
    + preempt_enable();

    if (tlb_flag(TLB_V6_I_FULL | TLB_V6_D_FULL |
    TLB_V6_I_PAGE | TLB_V6_D_PAGE |
    --
    -
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