static inline bool blk_mq_last_cpu_in_hctx(unsigned int cpu,
struct blk_mq_hw_ctx *hctx)
{
- if (cpumask_next_and(-1, hctx->cpumask, cpu_online_mask) != cpu)
+ if (cpumask_first_and(hctx->cpumask, cpu_online_mask) != cpu)
return false;
if (cpumask_next_and(cpu, hctx->cpumask, cpu_online_mask) < nr_cpu_ids)
return false;
stragglers = num_cpu >= vi->curr_queue_pairs ?
num_cpu % vi->curr_queue_pairs :
0;
- cpu = cpumask_next(-1, cpu_online_mask);
+ cpu = cpumask_first(cpu_online_mask);
for (i = 0; i < vi->curr_queue_pairs; i++) {
group_size = stride + (i < stragglers ? 1 : 0);
}
spin_lock(&bman_lock);
- cpu = cpumask_next_zero(-1, &portal_cpus);
+ cpu = cpumask_first_zero(&portal_cpus);
if (cpu >= nr_cpu_ids) {
__bman_portals_probed = 1;
/* unassigned portal, skip init */
pcfg->pools = qm_get_pools_sdqcr();
spin_lock(&qman_lock);
- cpu = cpumask_next_zero(-1, &portal_cpus);
+ cpu = cpumask_first_zero(&portal_cpus);
if (cpu >= nr_cpu_ids) {
__qman_portals_probed = 1;
/* unassigned portal, skip init */
return 0;
}
+static inline unsigned int cpumask_first_zero(const struct cpumask *srcp)
+{
+ return 0;
+}
+
static inline unsigned int cpumask_first_and(const struct cpumask *srcp1,
const struct cpumask *srcp2)
{
return find_first_bit(cpumask_bits(srcp), nr_cpumask_bits);
}
+/**
+ * cpumask_first_zero - get the first unset cpu in a cpumask
+ * @srcp: the cpumask pointer
+ *
+ * Returns >= nr_cpu_ids if all cpus are set.
+ */
+static inline unsigned int cpumask_first_zero(const struct cpumask *srcp)
+{
+ return find_first_zero_bit(cpumask_bits(srcp), nr_cpumask_bits);
+}
+
/**
* cpumask_first_and - return the first cpu from *srcp1 & *srcp2
* @src1p: the first input
return;
/* Make sure to select at least one CPU other than the current CPU. */
- cpu = cpumask_next(-1, cpu_online_mask);
+ cpu = cpumask_first(cpu_online_mask);
if (cpu == smp_processor_id())
cpu = cpumask_next(cpu, cpu_online_mask);
if (WARN_ON_ONCE(cpu >= nr_cpu_ids))
cpu = prandom_u32() % nr_cpu_ids;
cpu = cpumask_next(cpu - 1, cpu_online_mask);
if (cpu >= nr_cpu_ids)
- cpu = cpumask_next(-1, cpu_online_mask);
+ cpu = cpumask_first(cpu_online_mask);
if (!WARN_ON_ONCE(cpu >= nr_cpu_ids))
cpumask_set_cpu(cpu, &cpus_chosen);
}