diff options
| author | Ingo Molnar <mingo@kernel.org> | 2013-12-16 11:43:41 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-12-16 11:43:41 +0100 |
| commit | 73a7ac2808fa52bdab1781646568b6f90c3d7034 (patch) | |
| tree | b3a79f3ce811167c37e9c0e65aeb8a7c70bed4c8 /kernel/rcu/tree.h | |
| parent | 319e2e3f63c348a9b66db4667efa73178e18b17d (diff) | |
| parent | 0d3c55bc9fd58393bd3bd9974991ec1f815e1326 (diff) | |
| download | linux-73a7ac2808fa52bdab1781646568b6f90c3d7034.tar.bz2 | |
Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull v3.14 RCU updates from Paul E. McKenney.
The main changes:
* Update RCU documentation.
* Miscellaneous fixes.
* Add RCU torture scripts.
* Static-analysis improvements.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 52be957c9fe2..8c19873f1ac9 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -317,6 +317,7 @@ struct rcu_data { 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() and OOM callbacks. */ @@ -335,6 +336,7 @@ struct rcu_data { int nocb_p_count_lazy; /* (approximate). */ wait_queue_head_t nocb_wq; /* For nocb kthreads to sleep on. */ struct task_struct *nocb_kthread; + bool nocb_defer_wakeup; /* Defer wakeup of nocb_kthread. */ #endif /* #ifdef CONFIG_RCU_NOCB_CPU */ /* 8) RCU CPU stall data. */ @@ -453,6 +455,8 @@ struct rcu_state { /* but in jiffies. */ unsigned long jiffies_stall; /* Time at which to check */ /* for CPU stalls. */ + unsigned long jiffies_resched; /* Time at which to resched */ + /* a reluctant CPU. */ unsigned long gp_max; /* Maximum GP duration in */ /* jiffies. */ const char *name; /* Name of structure. */ @@ -548,9 +552,12 @@ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq); static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp); static void rcu_init_one_nocb(struct rcu_node *rnp); static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp, - bool lazy); + bool lazy, unsigned long flags); static bool rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp, - struct rcu_data *rdp); + struct rcu_data *rdp, + unsigned long flags); +static bool rcu_nocb_need_deferred_wakeup(struct rcu_data *rdp); +static void do_nocb_deferred_wakeup(struct rcu_data *rdp); static void rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp); static void rcu_spawn_nocb_kthreads(struct rcu_state *rsp); static void rcu_kick_nohz_cpu(int cpu); @@ -564,6 +571,7 @@ static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle, unsigned long maxj); static void rcu_bind_gp_kthread(void); static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp); +static bool rcu_nohz_full_cpu(struct rcu_state *rsp); #endif /* #ifndef RCU_TREE_NONCORE */ |