From: mwilck@suse.com
To: Sagi Grimberg <sagi@grimberg.me>, Hannes Reinecke <hare@suse.de>,
Keith Busch <kbusch@kernel.org>
Cc: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
linux-nvme@lists.infradead.org,
Enzo Matsumiya <ematsumiya@suse.de>,
Martin Wilck <mwilck@suse.com>
Subject: [PATCH v2 07/16] monitor: kill running discovery tasks on exit
Date: Sat, 6 Mar 2021 01:36:50 +0100 [thread overview]
Message-ID: <20210306003659.21207-8-mwilck@suse.com> (raw)
In-Reply-To: <20210306003659.21207-1-mwilck@suse.com>
From: Martin Wilck <mwilck@suse.com>
Make sure running discovery tasks terminate when the main process terminates.
---
monitor.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/monitor.c b/monitor.c
index f7517cb..b17fca0 100644
--- a/monitor.c
+++ b/monitor.c
@@ -471,6 +471,34 @@ out:
return ELOOP_CONTINUE;
}
+static int monitor_kill_discovery_task(struct nvme_connection *co,
+ void *arg __attribute__((unused)))
+{
+ int wstatus;
+ pid_t pid, wpid = -1;
+
+ if (co->status != CS_DISC_RUNNING)
+ return CD_CB_OK;
+
+ pid = co->discovery_task;
+ co->status = CS_FAILED;
+ if (kill(co->discovery_task, SIGTERM) == -1) {
+ msg(LOG_ERR, "failed to send SIGTERM to pid %ld: %m\n",
+ (long)pid);
+ wpid = waitpid(pid, &wstatus, WNOHANG);
+ } else {
+ msg(LOG_DEBUG, "sent SIGTERM to pid %ld, waiting\n", (long)pid);
+ wpid = waitpid(pid, &wstatus, 0);
+ }
+ if (wpid != pid) {
+ msg(LOG_ERR, "failed to wait for %ld: %m\n", (long)pid);
+ return CD_CB_ERR;
+ } else {
+ msg(LOG_DEBUG, "child %ld terminated\n", (long)pid);
+ return CD_CB_OK;
+ }
+}
+
static int monitor_parse_opts(const char *desc, int argc, char **argv)
{
bool quiet = false;
@@ -578,6 +606,8 @@ int aen_monitor(const char *desc, int argc, char **argv)
ret = event_loop(mon_dsp, &wait_mask, handle_epoll_err);
+ conndb_for_each(monitor_kill_discovery_task, NULL);
+ conndb_free();
out:
free_dispatcher(mon_dsp);
return nvme_status_to_errno(ret, true);
--
2.29.2
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next prev parent reply other threads:[~2021-03-06 0:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-06 0:36 [PATCH v2 00/16] nvme-cli: add "nvme monitor" subcommand mwilck
2021-03-06 0:36 ` [PATCH v2 01/16] fabrics: export symbols required for monitor functionality mwilck
2021-03-06 0:36 ` [PATCH v2 02/16] nvme-cli: add code for event and timeout handling mwilck
2021-03-17 0:32 ` Martin Wilck
2021-03-19 16:42 ` Martin Wilck
2021-03-30 22:06 ` Martin Wilck
2021-03-06 0:36 ` [PATCH v2 03/16] monitor: add basic "nvme monitor" functionality mwilck
2021-03-06 0:36 ` [PATCH v2 04/16] monitor: implement uevent handling mwilck
2021-03-06 0:36 ` [PATCH v2 05/16] conn-db: add simple connection registry mwilck
2021-03-06 0:36 ` [PATCH v2 06/16] monitor: monitor_discovery(): try to reuse existing controllers mwilck
2021-03-06 0:36 ` mwilck [this message]
2021-03-06 0:36 ` [PATCH v2 08/16] monitor: add option --cleanup / -C mwilck
2021-03-06 0:36 ` [PATCH v2 09/16] monitor: handling of add/remove uevents for nvme controllers mwilck
2021-03-06 0:36 ` [PATCH v2 10/16] monitor: discover from conf file on startup mwilck
2021-03-06 0:36 ` [PATCH v2 11/16] monitor: watch discovery.conf with inotify mwilck
2021-03-06 0:36 ` [PATCH v2 12/16] monitor: add parent/child messaging and "notify" message exchange mwilck
2021-03-06 0:36 ` [PATCH v2 13/16] monitor: add "query device" " mwilck
2021-03-06 0:36 ` [PATCH v2 14/16] completions: add completions for nvme monitor mwilck
2021-03-06 0:36 ` [PATCH v2 15/16] nvmf-autoconnect: add unit file for nvme-monitor.service mwilck
2021-03-06 0:36 ` [PATCH v2 16/16] nvme-monitor(1): add man page for nvme-monitor mwilck
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