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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2009-08-15 18:53:50 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-15 19:02:09 +0200 |
| commit | b612ba804b8a656333013ad2ee96fb2377df5dbb (patch) | |
| tree | fbfcb07be4b964f3a512109ec2fa5880cf92e99c | |
| parent | rcu: Make preemptable RCU scan all CPUs when summing RCU counters (diff) | |
| download | linux-b612ba804b8a656333013ad2ee96fb2377df5dbb.tar.xz linux-b612ba804b8a656333013ad2ee96fb2377df5dbb.zip | |
rcu: Make rcupreempt_trace.c look at offline CPUs
Given that offline CPUs can now have non-zero counters, we need
to dump counters for offline CPUs as well as for online CPUs.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: josht@linux.vnet.ibm.com
Cc: akpm@linux-foundation.org
Cc: mathieu.desnoyers@polymtl.ca
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: hugh.dickins@tiscali.co.uk
Cc: benh@kernel.crashing.org
LKML-Reference: <12503552313921-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/rcupreempt_trace.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/rcupreempt_trace.c b/kernel/rcupreempt_trace.c index 7c2665cac172..11640346a507 100644 --- a/kernel/rcupreempt_trace.c +++ b/kernel/rcupreempt_trace.c @@ -236,12 +236,13 @@ static ssize_t rcuctrs_read(struct file *filp, char __user *buffer, cnt += snprintf(&rcupreempt_trace_buf[cnt], RCUPREEMPT_TRACE_BUF_SIZE, "CPU last cur F M\n"); - for_each_online_cpu(cpu) { + for_each_possible_cpu(cpu) { long *flipctr = rcupreempt_flipctr(cpu); cnt += snprintf(&rcupreempt_trace_buf[cnt], RCUPREEMPT_TRACE_BUF_SIZE - cnt, - "%3d %4ld %3ld %d %d\n", + "%3d%c %4ld %3ld %d %d\n", cpu, + cpu_is_offline(cpu) ? '!' : ' ', flipctr[!f], flipctr[f], rcupreempt_flip_flag(cpu), |