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rcu: Merge per-RCU-flavor initialization into pre-existing macro

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Rename the RCU_DATA_PTR_INIT() macro to RCU_INIT_FLAVOR() and
make it do the rcu_init_one() and rcu_boot_init_percpu_data()
calls.  Merge the loop that was in the original macro with the
loops that were in __rcu_init().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: mathieu.desnoyers@polymtl.ca
Cc: josht@linux.vnet.ibm.com
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
LKML-Reference: <12509746133916-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Paul E. McKenney 2009-08-22 13:56:49 -07:00 committed by Ingo Molnar
parent 5699ed8fcb
commit 65cf8f866f
1 changed files with 5 additions and 9 deletions
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14
kernel/rcutree.c
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@ -1543,8 +1543,9 @@ static void __init rcu_init_one(struct rcu_state *rsp)
* Helper macro for __rcu_init(). To be used nowhere else!
* Assigns leaf node pointers into each CPU's rcu_data structure.
*/
#define RCU_DATA_PTR_INIT(rsp, rcu_data) \
#define RCU_INIT_FLAVOR(rsp, rcu_data) \
do { \
rcu_init_one(rsp); \
rnp = (rsp)->level[NUM_RCU_LVLS - 1]; \
j = 0; \
for_each_possible_cpu(i) { \
@ -1552,6 +1553,7 @@ do { \
j++; \
per_cpu(rcu_data, i).mynode = &rnp[j]; \
(rsp)->rda[i] = &per_cpu(rcu_data, i); \
rcu_boot_init_percpu_data(i, rsp); \
} \
} while (0)
@ -1565,14 +1567,8 @@ void __init __rcu_init(void)
#ifdef CONFIG_RCU_CPU_STALL_DETECTOR
printk(KERN_INFO "RCU-based detection of stalled CPUs is enabled.\n");
#endif /* #ifdef CONFIG_RCU_CPU_STALL_DETECTOR */
rcu_init_one(&rcu_sched_state);
RCU_DATA_PTR_INIT(&rcu_sched_state, rcu_sched_data);
for_each_possible_cpu(i)
rcu_boot_init_percpu_data(i, &rcu_sched_state);
rcu_init_one(&rcu_bh_state);
RCU_DATA_PTR_INIT(&rcu_bh_state, rcu_bh_data);
for_each_possible_cpu(i)
rcu_boot_init_percpu_data(i, &rcu_bh_state);
RCU_INIT_FLAVOR(&rcu_sched_state, rcu_sched_data);
RCU_INIT_FLAVOR(&rcu_bh_state, rcu_bh_data);
open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
}