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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-03-10 10:55:52 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-04-29 08:43:32 -0700 |
| commit | 365187fbc04fd55766bf6a94e37e558505bf480a (patch) | |
| tree | 6249491e31d2c9e6e1fdb62048694b28f0974d97 /kernel/rcu/tree.h | |
| parent | 83ebe63ead0fe60e4b548730800cb68293ce098b (diff) | |
| download | linux-365187fbc04fd55766bf6a94e37e558505bf480a.tar.bz2 | |
rcu: Update cpu_needs_another_gp() for futures from non-NOCB CPUs
In the old days, the only source of requests for future grace periods
was NOCB CPUs. This has changed: CPUs routinely post requests for
future grace periods in order to promote power efficiency and reduce
OS jitter with minimal impact on grace-period latency. This commit
therefore updates cpu_needs_another_gp() to invoke rcu_future_needs_gp()
instead of rcu_nocb_needs_gp(). The latter is no longer used, so is
now removed. This commit also adds tracing for the irq_work_queue()
wakeup case.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 75dc3c39a02a..7b572c5c65e1 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -547,7 +547,6 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu); static void print_cpu_stall_info_end(void); static void zero_cpu_stall_ticks(struct rcu_data *rdp); static void increment_cpu_stall_ticks(void); -static int rcu_nocb_needs_gp(struct rcu_state *rsp); 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); |