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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2010-10-20 08:13:06 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2010-11-30 07:01:58 +0100 |
| commit | 29494be71afe2a16ad04e344306a620d7cc22d06 (patch) | |
| tree | d16a2acd1566be326483d5217d39b78d2ef798c5 /kernel/rcutree_trace.c | |
| parent | rcu,cleanup: move synchronize_sched_expedited() out of sched.c (diff) | |
| download | linux-29494be71afe2a16ad04e344306a620d7cc22d06.tar.xz linux-29494be71afe2a16ad04e344306a620d7cc22d06.zip | |
rcu,cleanup: simplify the code when cpu is dying
When we handle the CPU_DYING notifier, the whole system is stopped except
for the current CPU. We therefore need no synchronization with the other
CPUs. This allows us to move any orphaned RCU callbacks directly to the
list of any online CPU without needing to run them through the global
orphan lists. These global orphan lists can therefore be dispensed with.
This commit makes thes changes, though currently victimizes CPU 0 @@@.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree_trace.c')
| -rw-r--r-- | kernel/rcutree_trace.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index 78ad3c35b683..c8e97853b970 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -166,13 +166,13 @@ static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp) gpnum = rsp->gpnum; seq_printf(m, "c=%lu g=%lu s=%d jfq=%ld j=%x " - "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld\n", + "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu\n", rsp->completed, gpnum, rsp->signaled, (long)(rsp->jiffies_force_qs - jiffies), (int)(jiffies & 0xffff), rsp->n_force_qs, rsp->n_force_qs_ngp, rsp->n_force_qs - rsp->n_force_qs_ngp, - rsp->n_force_qs_lh, rsp->orphan_qlen); + rsp->n_force_qs_lh); for (rnp = &rsp->node[0]; rnp - &rsp->node[0] < NUM_RCU_NODES; rnp++) { if (rnp->level != level) { seq_puts(m, "\n"); |