From: Michael Wang <[email protected]> This patch add new 'rcubarrier' to each flavor's folder, now we could use: 'cat /debugfs/rcu/rsp/rcubarrier' to get the selected rsp info.
Signed-off-by: Michael Wang <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> --- kernel/rcutree_trace.c | 27 +++++++++++++++++++++++++++ 1 files changed, 27 insertions(+), 0 deletions(-) diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index 209e696..8b03bfb 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -101,6 +101,28 @@ static const struct file_operations rcubarrier_fops = { .release = single_release, }; +static int new_show_rcubarrier(struct seq_file *m, void *v) +{ + struct rcu_state *rsp = (struct rcu_state *)m->private; + seq_printf(m, "bcc: %d nbd: %lu\n", + atomic_read(&rsp->barrier_cpu_count), + rsp->n_barrier_done); + return 0; +} + +static int new_rcubarrier_open(struct inode *inode, struct file *file) +{ + return single_open(file, new_show_rcubarrier, inode->i_private); +} + +static const struct file_operations new_rcubarrier_fops = { + .owner = THIS_MODULE, + .open = new_rcubarrier_open, + .read = seq_read, + .llseek = no_llseek, + .release = seq_release, +}; + #ifdef CONFIG_RCU_BOOST static char convert_kthread_status(unsigned int kthread_status) @@ -429,6 +451,11 @@ static int __init rcutree_trace_init(void) rspdir, rsp, &rcu_pending_fops); if (!retval) goto free_out; + + retval = debugfs_create_file("rcubarrier", 0444, + rspdir, rsp, &new_rcubarrier_fops); + if (!retval) + goto free_out; } retval = debugfs_create_file("rcubarrier", 0444, rcudir, -- 1.7.8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
