[ARCHIVE DEBUG 11/13] audit_debug: instrument audit_receive timing

Debug the timing and stalling of calls to audit_receive() for processes we care about. Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com&gt; --- kernel/audit.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/kernel/audit.c b/kernel/audit.c index 9e9c02b..76b6878 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -1136,6 +1136,18 @@ static void audit_receive(struct sk_buff *skb) pid_t pid = 0; + int pr = 0; + //pid_t audit_pid_cached; + pid_t audit_pid_cached = audit_pid; + + if (current->tgid == 1 || (audit_pid && audit_pid == current->tgid)) { + //pr_warn("( %lu )audit_receive apid=%d pid=%d(%s) Qlen=%d\n", + //jiffies, audit_pid, current->pid, current->comm, skb_queue_len(&audit_skb_queue)); + pr = 1; + //} else { + //audit_pid_cached = audit_pid; + } + if (!mutex_trylock(&audit_cmd_mutex)) { rcu_read_lock(); owner = ACCESS_ONCE(audit_cmd_mutex.owner); @@ -1150,6 +1162,10 @@ static void audit_receive(struct sk_buff *skb) } audit_receive_skb(skb); mutex_unlock(&audit_cmd_mutex); + + if (pr || current->tgid == 1 || (audit_pid && audit_pid == current->tgid)) + pr_warn("( %lu %lu )audit_receive-exit apid=%d apid-old=%d pid=%d(%s) Qlen=%d\n", + trytime, jiffies - trytime, audit_pid, audit_pid_cached, current->pid, current->comm, skb_queue_len(&audit_skb_queue)); } /* Run custom bind function on netlink socket group connect or bind requests. */ -- 1.7.1