After the "ID:" line there go
1. "signal:" line, that shows signal number and sigval bits;
2. "notify:" line, that shows the timer notification method.
The timer entry would looke like this:
ID: 123
signal: 14/0000000000b005d0
notify: signal/pid.732
This information is enough to understand ho the timer_create()
was called for each particular timer.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
---
fs/proc/base.c | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index fc73d19..7f01e19 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2017,6 +2017,7 @@ struct timers_private {
struct pid *pid;
struct task_struct *task;
struct sighand_struct *sighand;
+ struct pid_namespace *ns;
unsigned long flags;
};
@@ -2059,9 +2060,24 @@ static void timers_stop(struct seq_file *m, void *v)
static int show_timer(struct seq_file *m, void *v)
{
struct k_itimer *timer;
+ struct timers_private *tp = m->private;
+ int notify;
+ static char *nstr[] = {
+ [SIGEV_SIGNAL] = "signal",
+ [SIGEV_NONE] = "none",
+ [SIGEV_THREAD] = "thread",
+ };
timer = list_entry((struct list_head *)v, struct k_itimer, list);
+ notify = timer->it_sigev_notify;
+
seq_printf(m, "ID: %d\n", timer->it_id);
+ seq_printf(m, "signal: %d/%p\n", timer->sigq->info.si_signo,
+ timer->sigq->info.si_value.sival_ptr);
+ seq_printf(m, "notify: %s/%s.%d\n",
+ nstr[notify & ~SIGEV_THREAD_ID],
+ (notify & SIGEV_THREAD_ID) ? "tid" : "pid",
+ pid_nr_ns(timer->it_pid, tp->ns));
return 0;
}
@@ -2083,6 +2099,7 @@ static int proc_timers_open(struct inode *inode, struct file *file)
return -ENOMEM;
tp->pid = proc_pid(inode);
+ tp->ns = inode->i_sb->s_fs_info;
return 0;
}
--
1.7.6.5
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