diff options
Diffstat (limited to 'kernel/rcu/tree_exp.h')
| -rw-r--r-- | kernel/rcu/tree_exp.h | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h index 755d0f461f26..d40708e8c5d6 100644 --- a/kernel/rcu/tree_exp.h +++ b/kernel/rcu/tree_exp.h @@ -266,14 +266,12 @@ static void rcu_report_exp_rdp(struct rcu_state *rsp, struct rcu_data *rdp, } /* Common code for synchronize_{rcu,sched}_expedited() work-done checking. */ -static bool sync_exp_work_done(struct rcu_state *rsp, atomic_long_t *stat, - unsigned long s) +static bool sync_exp_work_done(struct rcu_state *rsp, unsigned long s) { if (rcu_exp_gp_seq_done(rsp, s)) { trace_rcu_exp_grace_period(rsp->name, s, TPS("done")); /* Ensure test happens before caller kfree(). */ smp_mb__before_atomic(); /* ^^^ */ - atomic_long_inc(stat); return true; } return false; @@ -307,7 +305,7 @@ static bool exp_funnel_lock(struct rcu_state *rsp, unsigned long s) * promoting locality and is not strictly needed for correctness. */ for (; rnp != NULL; rnp = rnp->parent) { - if (sync_exp_work_done(rsp, &rdp->exp_workdone1, s)) + if (sync_exp_work_done(rsp, s)) return true; /* Work not done, either wait here or go up. */ @@ -320,8 +318,7 @@ static bool exp_funnel_lock(struct rcu_state *rsp, unsigned long s) rnp->grplo, rnp->grphi, TPS("wait")); wait_event(rnp->exp_wq[rcu_seq_ctr(s) & 0x3], - sync_exp_work_done(rsp, - &rdp->exp_workdone2, s)); + sync_exp_work_done(rsp, s)); return true; } rnp->exp_seq_rq = s; /* Followers can wait on us. */ @@ -331,7 +328,7 @@ static bool exp_funnel_lock(struct rcu_state *rsp, unsigned long s) } mutex_lock(&rsp->exp_mutex); fastpath: - if (sync_exp_work_done(rsp, &rdp->exp_workdone3, s)) { + if (sync_exp_work_done(rsp, s)) { mutex_unlock(&rsp->exp_mutex); return true; } @@ -679,7 +676,7 @@ static void _synchronize_rcu_expedited(struct rcu_state *rsp, rdp = per_cpu_ptr(rsp->rda, raw_smp_processor_id()); rnp = rcu_get_root(rsp); wait_event(rnp->exp_wq[rcu_seq_ctr(s) & 0x3], - sync_exp_work_done(rsp, &rdp->exp_workdone0, s)); + sync_exp_work_done(rsp, s)); smp_mb(); /* Workqueue actions happen before return. */ /* Let the next expedited grace period start. */ |
