diff options
| -rw-r--r-- | kernel/rcutree_trace.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index 62223a27f98..0dfe9b512f0 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -46,6 +46,36 @@ #define RCU_TREE_NONCORE #include "rcutree.h" +static int r_open(struct inode *inode, struct file *file, + const struct seq_operations *op) +{ + int ret = seq_open(file, op); + if (!ret) { + struct seq_file *m = (struct seq_file *)file->private_data; + m->private = inode->i_private; + } + return ret; +} + +static void *r_start(struct seq_file *m, loff_t *pos) +{ + struct rcu_state *rsp = (struct rcu_state *)m->private; + *pos = cpumask_next(*pos - 1, cpu_possible_mask); + if ((*pos) < nr_cpu_ids) + return per_cpu_ptr(rsp->rda, *pos); + return NULL; +} + +static void *r_next(struct seq_file *m, void *v, loff_t *pos) +{ + (*pos)++; + return r_start(m, pos); +} + +static void r_stop(struct seq_file *m, void *v) +{ +} + static int show_rcubarrier(struct seq_file *m, void *unused) { struct rcu_state *rsp; |