Reorder one field of the PDA to reduce padding From: Arjan van de Ven Hi, the patch below reorders the mmu_state int in the pda, such that there is no more padding (there currently is 4 bytes of padding). Boot tested. Signed-off-by: Arjan van de Ven Signed-off-by: Andi Kleen --- include/asm-x86_64/pda.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) Index: linux/include/asm-x86_64/pda.h =================================================================== --- linux.orig/include/asm-x86_64/pda.h +++ linux/include/asm-x86_64/pda.h @@ -22,8 +22,8 @@ struct x8664_pda { int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ - struct mm_struct *active_mm; int mmu_state; + struct mm_struct *active_mm; unsigned apic_timer_irqs; } ____cacheline_aligned_in_smp;