diff options
| author | Michael Wang <wangyun@linux.vnet.ibm.com> | 2012-10-08 16:59:17 +0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-11-08 11:55:42 -0800 |
| commit | 29c67764f121a0980eb30d0314821ea631e6cfaf (patch) | |
| tree | ec4acb083683d92c96f3af78028c0048ebb24caf /kernel/rcutree_trace.c | |
| parent | c25e557f5d49a7cb94fad473f5ced75b6c7ce094 (diff) | |
| download | lwn-29c67764f121a0980eb30d0314821ea631e6cfaf.tar.gz lwn-29c67764f121a0980eb30d0314821ea631e6cfaf.zip | |
rcu: split 'rcuboost' to each flavor
This patch add new 'rcuboost' to each flavor's folder, now we could use:
'cat /debugfs/rcu/rsp/rcuboost'
to get the selected rsp info.
Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.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 | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index 65b6265531ff..cae417de4b94 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -241,7 +241,7 @@ static const struct file_operations rcu_node_boost_fops = { .owner = THIS_MODULE, .open = rcu_node_boost_open, .read = seq_read, - .llseek = seq_lseek, + .llseek = no_llseek, .release = single_release, }; @@ -459,6 +459,15 @@ static int __init rcutree_trace_init(void) rspdir, rsp, &new_rcubarrier_fops); if (!retval) goto free_out; + +#ifdef CONFIG_RCU_BOOST + if (rsp == &rcu_preempt_state) { + retval = debugfs_create_file("rcuboost", 0444, + rspdir, NULL, &rcu_node_boost_fops); + if (!retval) + goto free_out; + } +#endif } retval = debugfs_create_file("rcubarrier", 0444, rcudir, |