rcu_read_delay

Name:rcu_read_delay

Proto:static void rcu_read_delay(struct torture_random_state *rrsp, struct rt_read_seg *rtrsp)

Type:void

Parameter:

Type	Parameter	Name
struct torture_random_state *	rrsp
struct rt_read_seg *	rtrsp

334

shortdelay_us = 200

335

longdelay_ms = 300

342

If Not Short rcu_torture_delay() delays. && Not (torture_random(rrsp) % nrealreaders * 2000 * longdelay_ms ) Then

344

started = get_gp_seq()

345

ts = rcu_trace_clock_local()

346

If We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users* that think a non-zero value indicates we cannot preempt. & (SOFTIRQ_MASK | HARDIRQ_MASK) Then longdelay_ms = 5

348

mdelay(longdelay_ms)

349

rt_delay_ms = longdelay_ms

350

completed = get_gp_seq()

351

do_trace_rcu_torture_read(name, NULL, ts, started, completed)

354

If Not (torture_random(rrsp) % nrealreaders * 2 * shortdelay_us ) Then

355

0x10c7 is 2**32 / 1000000 (rounded up) (shortdelay_us)

356

rt_delay_us = shortdelay_us

358

If Not We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users* that think a non-zero value indicates we cannot preempt. && Not (torture_random(rrsp) % nrealreaders * 500 ) Then

361

rt_preempted = true

**Caller**
Name	Describe
srcu_read_delay

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