Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 10/14] rcu: split 'rcuboost' to each flavor | Date | Tue, 30 Oct 2012 10:05:09 -0700 |
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From: Michael Wang <wangyun@linux.vnet.ibm.com>
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> --- 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 8b03bfb..b6fd147 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -239,7 +239,7 @@ 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, }; @@ -456,6 +456,15 @@ 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, -- 1.7.8
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