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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-01-10 23:36:00 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-02-21 03:10:28 +0300 |
| commit | 01c495f72a3b5a210e5689deba1ef33c82e8aa30 (patch) | |
| tree | 7ae45dbae3388c683fefa52617ed782eb25c3c4b /kernel/rcu/tree.h | |
| parent | 62df63e048daf4e29373bbbaae3751e5af5d9502 (diff) | |
| download | linux-01c495f72a3b5a210e5689deba1ef33c82e8aa30.tar.xz | |
rcu: Remove obsolete __rcu_pending() statistics for debugfs
The debugfs interface displayed statistics on RCU-pending checks
but this interface has since been removed. This commit therefore
removes the no-longer-used rcu_data structure's ->n_rcu_pending,
->n_rp_core_needs_qs, ->n_rp_report_qs, ->n_rp_cb_ready,
->n_rp_cpu_needs_gp, ->n_rp_gp_completed, ->n_rp_gp_started,
->n_rp_nocb_defer_wakeup, and ->n_rp_need_nothing fields along with
their updates.
If this information proves necessary in the future, the corresponding
event traces will be added.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index b258fac73524..d29bab8dea28 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -226,18 +226,7 @@ struct rcu_data { /* Grace period that needs help */ /* from cond_resched(). */ - /* 5) __rcu_pending() statistics. */ - unsigned long n_rcu_pending; /* rcu_pending() calls since boot. */ - unsigned long n_rp_core_needs_qs; - unsigned long n_rp_report_qs; - unsigned long n_rp_cb_ready; - unsigned long n_rp_cpu_needs_gp; - unsigned long n_rp_gp_completed; - unsigned long n_rp_gp_started; - unsigned long n_rp_nocb_defer_wakeup; - unsigned long n_rp_need_nothing; - - /* 6) _rcu_barrier(), OOM callbacks, and expediting. */ + /* 5) _rcu_barrier(), OOM callbacks, and expediting. */ struct rcu_head barrier_head; #ifdef CONFIG_RCU_FAST_NO_HZ struct rcu_head oom_head; @@ -248,7 +237,7 @@ struct rcu_data { atomic_long_t exp_workdone3; /* # done by others #3. */ int exp_dynticks_snap; /* Double-check need for IPI. */ - /* 7) Callback offloading. */ + /* 6) Callback offloading. */ #ifdef CONFIG_RCU_NOCB_CPU struct rcu_head *nocb_head; /* CBs waiting for kthread. */ struct rcu_head **nocb_tail; @@ -275,7 +264,7 @@ struct rcu_data { /* Leader CPU takes GP-end wakeups. */ #endif /* #ifdef CONFIG_RCU_NOCB_CPU */ - /* 8) RCU CPU stall data. */ + /* 7) RCU CPU stall data. */ unsigned int softirq_snap; /* Snapshot of softirq activity. */ /* ->rcu_iw* fields protected by leaf rcu_node ->lock. */ struct irq_work rcu_iw; /* Check for non-irq activity. */ |