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| author | Stefan Strogin <sstrogin@cisco.com> | 2018-05-01 01:04:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-05-01 14:25:37 -0400 |
| commit | b086ff87251b4a4c147bc3af20369514e9d0d9ad (patch) | |
| tree | 6dfa9a0d2d559464264580958053f414ad1d0cf9 | |
| parent | e283de3a4fa885aed11525129fd4570f92c1d1a9 (diff) | |
| download | linux-stable-b086ff87251b4a4c147bc3af20369514e9d0d9ad.tar.gz linux-stable-b086ff87251b4a4c147bc3af20369514e9d0d9ad.tar.bz2 linux-stable-b086ff87251b4a4c147bc3af20369514e9d0d9ad.zip | |
connector: add parent pid and tgid to coredump and exit events
The intention is to get notified of process failures as soon
as possible, before a possible core dumping (which could be very long)
(e.g. in some process-manager). Coredump and exit process events
are perfect for such use cases (see 2b5faa4c553f "connector: Added
coredumping event to the process connector").
The problem is that for now the process-manager cannot know the parent
of a dying process using connectors. This could be useful if the
process-manager should monitor for failures only children of certain
parents, so we could filter the coredump and exit events by parent
process and/or thread ID.
Add parent pid and tgid to coredump and exit process connectors event
data.
Signed-off-by: Stefan Strogin <sstrogin@cisco.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/connector/cn_proc.c | 4 | ||||
| -rw-r--r-- | include/uapi/linux/cn_proc.h | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c index a782ce87715c..ed5e42461094 100644 --- a/drivers/connector/cn_proc.c +++ b/drivers/connector/cn_proc.c @@ -262,6 +262,8 @@ void proc_coredump_connector(struct task_struct *task) ev->what = PROC_EVENT_COREDUMP; ev->event_data.coredump.process_pid = task->pid; ev->event_data.coredump.process_tgid = task->tgid; + ev->event_data.coredump.parent_pid = task->real_parent->pid; + ev->event_data.coredump.parent_tgid = task->real_parent->tgid; memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ @@ -288,6 +290,8 @@ void proc_exit_connector(struct task_struct *task) ev->event_data.exit.process_tgid = task->tgid; ev->event_data.exit.exit_code = task->exit_code; ev->event_data.exit.exit_signal = task->exit_signal; + ev->event_data.exit.parent_pid = task->real_parent->pid; + ev->event_data.exit.parent_tgid = task->real_parent->tgid; memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ diff --git a/include/uapi/linux/cn_proc.h b/include/uapi/linux/cn_proc.h index 68ff25414700..db210625cee8 100644 --- a/include/uapi/linux/cn_proc.h +++ b/include/uapi/linux/cn_proc.h @@ -116,12 +116,16 @@ struct proc_event { struct coredump_proc_event { __kernel_pid_t process_pid; __kernel_pid_t process_tgid; + __kernel_pid_t parent_pid; + __kernel_pid_t parent_tgid; } coredump; struct exit_proc_event { __kernel_pid_t process_pid; __kernel_pid_t process_tgid; __u32 exit_code, exit_signal; + __kernel_pid_t parent_pid; + __kernel_pid_t parent_tgid; } exit; } event_data; |