Zhang, Xiantao wrote:
> +/* mca_insert_tr
> + *
> + * Switch rid when TR reload and needed!
> + * iord: 1: itr, 2: itr;
> + *
> +*/
> +static void mca_insert_tr(u64 iord)
> +{
> +
> + int i;
> + u64 old_rr;
> + struct ia64_tr_entry *p;
> + unsigned long psr;
> + int cpu = smp_processor_id();
What if CONFIG_PREEMPT is on, and we're being preempted and scheduled
to a different CPU here? Are we running preempt disabled here? If so,
the function header should state that this function needs to be called
preempt_disabled.
> +/*
> + * ia64_insert_tr in virtual mode. Allocate a TR slot
> + *
> + * target_mask : 0x1 : itr, 0x2 : dtr, 0x3 : idtr
> + *
> + * va : virtual address.
> + * pte : pte entries inserted.
> + * log_size: range to be covered.
> + *
> + * Return value: <0 : error No.
> + *
> + * >=0 : slot number allocated for TR.
> + */
> +int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size)
> +{
> + int i, r;
> + unsigned long psr;
> + struct ia64_tr_entry *p;
> + int cpu = smp_processor_id();
Same here.
> +/*
> + * ia64_purge_tr
> + *
> + * target_mask: 0x1: purge itr, 0x2 : purge dtr, 0x3 purge idtr.
> + *
> + * slot: slot number to be freed.
> + */
> +void ia64_ptr_entry(u64 target_mask, int slot)
> +{
> + int cpu = smp_processor_id();
> + int i;
> + struct ia64_tr_entry *p;
Here again.
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