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Diffstat (limited to 'src/udev')
-rw-r--r--src/udev/udev-ctrl.c2
-rw-r--r--src/udev/udevadm-settle.c131
-rw-r--r--src/udev/udevd.c59
3 files changed, 51 insertions, 141 deletions
diff --git a/src/udev/udev-ctrl.c b/src/udev/udev-ctrl.c
index 1e91ec20a1..74bbd3a99e 100644
--- a/src/udev/udev-ctrl.c
+++ b/src/udev/udev-ctrl.c
@@ -275,7 +275,7 @@ static int ctrl_send(struct udev_ctrl *uctrl, enum udev_ctrl_msg_type type, int
pfd[0].fd = uctrl->sock;
pfd[0].events = POLLIN;
- r = poll(pfd, 1, timeout * 1000);
+ r = poll(pfd, 1, timeout * MSEC_PER_SEC);
if (r < 0) {
if (errno == EINTR)
continue;
diff --git a/src/udev/udevadm-settle.c b/src/udev/udevadm-settle.c
index 927ea2a7f2..65fc35f9a0 100644
--- a/src/udev/udevadm-settle.c
+++ b/src/udev/udevadm-settle.c
@@ -41,42 +41,28 @@
static void help(void) {
printf("Usage: udevadm settle OPTIONS\n"
" -t,--timeout=<seconds> maximum time to wait for events\n"
- " -s,--seq-start=<seqnum> first seqnum to wait for\n"
- " -e,--seq-end=<seqnum> last seqnum to wait for\n"
" -E,--exit-if-exists=<file> stop waiting if file exists\n"
- " -q,--quiet do not print list after timeout\n"
" -h,--help\n\n");
}
static int adm_settle(struct udev *udev, int argc, char *argv[])
{
static const struct option options[] = {
- { "seq-start", required_argument, NULL, 's' },
- { "seq-end", required_argument, NULL, 'e' },
+ { "seq-start", required_argument, NULL, '\0' }, /* removed */
+ { "seq-end", required_argument, NULL, '\0' }, /* removed */
{ "timeout", required_argument, NULL, 't' },
{ "exit-if-exists", required_argument, NULL, 'E' },
- { "quiet", no_argument, NULL, 'q' },
+ { "quiet", no_argument, NULL, 'q' }, /* removed */
{ "help", no_argument, NULL, 'h' },
{}
};
- usec_t start_usec = now(CLOCK_MONOTONIC);
- usec_t start = 0;
- usec_t end = 0;
- int quiet = 0;
const char *exists = NULL;
unsigned int timeout = 120;
struct pollfd pfd[1] = { {.fd = -1}, };
- _cleanup_udev_queue_unref_ struct udev_queue *udev_queue = NULL;
int rc = EXIT_FAILURE, c;
- while ((c = getopt_long(argc, argv, "s:e:t:E:qh", options, NULL)) >= 0)
+ while ((c = getopt_long(argc, argv, "s:e:t:E:qh", options, NULL)) >= 0) {
switch (c) {
- case 's':
- start = strtoull(optarg, NULL, 0);
- break;
- case 'e':
- end = strtoull(optarg, NULL, 0);
- break;
case 't': {
int r;
@@ -91,9 +77,6 @@ static int adm_settle(struct udev *udev, int argc, char *argv[])
case 'E':
exists = optarg;
break;
- case 'q':
- quiet = 1;
- break;
case 'h':
help();
exit(EXIT_SUCCESS);
@@ -102,44 +85,13 @@ static int adm_settle(struct udev *udev, int argc, char *argv[])
default:
assert_not_reached("Unknown argument");
}
+ }
if (optind < argc) {
fprintf(stderr, "Extraneous argument: '%s'\n", argv[optind]);
exit(EXIT_FAILURE);
}
- udev_queue = udev_queue_new(udev);
- if (udev_queue == NULL)
- exit(2);
-
- if (start > 0) {
- unsigned long long kernel_seq;
-
- kernel_seq = udev_queue_get_kernel_seqnum(udev_queue);
-
- /* unless specified, the last event is the current kernel seqnum */
- if (end == 0)
- end = udev_queue_get_kernel_seqnum(udev_queue);
-
- if (start > end) {
- log_error("seq-start larger than seq-end, ignoring");
- start = 0;
- end = 0;
- }
-
- if (start > kernel_seq || end > kernel_seq) {
- log_error("seq-start or seq-end larger than current kernel value, ignoring");
- start = 0;
- end = 0;
- }
- log_debug("start=%llu end=%llu current=%llu", (unsigned long long)start, (unsigned long long)end, kernel_seq);
- } else {
- if (end > 0) {
- log_error("seq-end needs seq-start parameter, ignoring");
- end = 0;
- }
- }
-
/* guarantee that the udev daemon isn't pre-processing */
if (getuid() == 0) {
struct udev_ctrl *uctrl;
@@ -160,73 +112,34 @@ static int adm_settle(struct udev *udev, int argc, char *argv[])
pfd[0].fd = inotify_init1(IN_CLOEXEC);
if (pfd[0].fd < 0) {
log_error("inotify_init failed: %m");
- } else {
- if (inotify_add_watch(pfd[0].fd, "/run/udev" , IN_MOVED_TO) < 0) {
- log_error("watching /run/udev failed");
- close(pfd[0].fd);
- pfd[0].fd = -1;
- }
+ goto out;
}
- for (;;) {
- struct stat statbuf;
+ if (inotify_add_watch(pfd[0].fd, "/run/udev/queue" , IN_DELETE) < 0) {
+ log_debug("watching /run/udev failed");
+ goto out;
+ }
- if (exists != NULL && stat(exists, &statbuf) == 0) {
+ for (;;) {
+ if (exists && access(exists, F_OK) >= 0) {
rc = EXIT_SUCCESS;
break;
}
- if (start > 0) {
- /* if asked for, wait for a specific sequence of events */
- if (udev_queue_get_seqnum_sequence_is_finished(udev_queue, start, end) == 1) {
- rc = EXIT_SUCCESS;
- break;
- }
- } else {
- /* exit if queue is empty */
- if (udev_queue_get_queue_is_empty(udev_queue)) {
- rc = EXIT_SUCCESS;
- break;
- }
- }
-
- if (pfd[0].fd >= 0) {
- int delay;
-
- if (exists != NULL || start > 0)
- delay = 100;
- else
- delay = 1000;
- /* wake up after delay, or immediately after the queue is rebuilt */
- if (poll(pfd, 1, delay) > 0 && pfd[0].revents & POLLIN) {
- char buf[sizeof(struct inotify_event) + PATH_MAX];
-
- read(pfd[0].fd, buf, sizeof(buf));
- }
- } else {
- sleep(1);
+ /* exit if queue is empty */
+ if (access("/run/udev/queue", F_OK) < 0) {
+ rc = EXIT_SUCCESS;
+ break;
}
- if (timeout > 0) {
- usec_t age_usec;
+ /* wake up when "queue" file is deleted */
+ if (poll(pfd, 1, 100) > 0 && pfd[0].revents & POLLIN) {
+ char buf[sizeof(struct inotify_event) + PATH_MAX];
- age_usec = now(CLOCK_MONOTONIC) - start_usec;
- if (age_usec / (1000 * 1000) >= timeout) {
- struct udev_list_entry *list_entry;
-
- if (!quiet && udev_queue_get_queued_list_entry(udev_queue) != NULL) {
- log_debug("timeout waiting for udev queue");
- printf("\nudevadm settle - timeout of %i seconds reached, the event queue contains:\n", timeout);
- udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue))
- printf(" %s (%s)\n",
- udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry));
- }
-
- break;
- }
+ read(pfd[0].fd, buf, sizeof(buf));
}
}
+
out:
if (pfd[0].fd >= 0)
close(pfd[0].fd);
@@ -236,5 +149,5 @@ out:
const struct udevadm_cmd udevadm_settle = {
.name = "settle",
.cmd = adm_settle,
- .help = "wait for the event queue to finish",
+ .help = "wait for pending udev events",
};
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index f21c227d17..f9ee36870b 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -60,7 +60,6 @@ void udev_main_log(struct udev *udev, int priority,
}
static struct udev_rules *rules;
-static struct udev_queue_export *udev_queue_export;
static struct udev_ctrl *udev_ctrl;
static struct udev_monitor *monitor;
static int worker_watch[2] = { -1, -1 };
@@ -139,14 +138,9 @@ static inline struct worker *node_to_worker(struct udev_list_node *node)
return container_of(node, struct worker, node);
}
-static void event_queue_delete(struct event *event, bool export)
+static void event_queue_delete(struct event *event)
{
udev_list_node_remove(&event->node);
-
- if (export) {
- udev_queue_export_device_finished(udev_queue_export, event->dev);
- log_debug("seq %llu done with %i", udev_device_get_seqnum(event->dev), event->exitcode);
- }
udev_device_unref(event->dev);
free(event);
}
@@ -225,7 +219,6 @@ static void worker_new(struct event *event)
free(worker);
worker_list_cleanup(udev);
event_queue_cleanup(udev, EVENT_UNDEF);
- udev_queue_export_unref(udev_queue_export);
udev_monitor_unref(monitor);
udev_ctrl_unref(udev_ctrl);
close(fd_signal);
@@ -449,7 +442,6 @@ static int event_queue_insert(struct udev_device *dev)
event->nodelay = true;
#endif
- udev_queue_export_device_queued(udev_queue_export, dev);
log_debug("seq %llu queued, '%s' '%s'", udev_device_get_seqnum(dev),
udev_device_get_action(dev), udev_device_get_subsystem(dev));
@@ -580,7 +572,7 @@ static void event_queue_cleanup(struct udev *udev, enum event_state match_type)
if (match_type != EVENT_UNDEF && match_type != event->state)
continue;
- event_queue_delete(event, false);
+ event_queue_delete(event);
}
}
@@ -605,7 +597,7 @@ static void worker_returned(int fd_worker)
/* worker returned */
if (worker->event) {
worker->event->exitcode = msg.exitcode;
- event_queue_delete(worker->event, true);
+ event_queue_delete(worker->event);
worker->event = NULL;
}
if (worker->state != WORKER_KILLED)
@@ -797,7 +789,8 @@ static void handle_signal(struct udev *udev, int signo)
log_error("worker [%u] failed while handling '%s'",
pid, worker->event->devpath);
worker->event->exitcode = -32;
- event_queue_delete(worker->event, true);
+ event_queue_delete(worker->event);
+
/* drop reference taken for state 'running' */
worker_unref(worker);
}
@@ -1076,14 +1069,7 @@ int main(int argc, char *argv[])
goto exit;
}
- udev_monitor_set_receive_buffer_size(monitor, 128*1024*1024);
-
- /* create queue file before signalling 'ready', to make sure we block 'settle' */
- udev_queue_export = udev_queue_export_new(udev);
- if (udev_queue_export == NULL) {
- log_error("error creating queue file");
- goto exit;
- }
+ udev_monitor_set_receive_buffer_size(monitor, 128 * 1024 * 1024);
if (daemonize) {
pid_t pid;
@@ -1241,12 +1227,12 @@ int main(int argc, char *argv[])
worker_kill(udev);
/* exit after all has cleaned up */
- if (udev_list_node_is_empty(&event_list) && udev_list_node_is_empty(&worker_list))
+ if (udev_list_node_is_empty(&event_list) && children == 0)
break;
/* timeout at exit for workers to finish */
- timeout = 30 * 1000;
- } else if (udev_list_node_is_empty(&event_list) && !children) {
+ timeout = 30 * MSEC_PER_SEC;
+ } else if (udev_list_node_is_empty(&event_list) && children == 0) {
/* we are idle */
timeout = -1;
@@ -1255,8 +1241,20 @@ int main(int argc, char *argv[])
cg_kill(SYSTEMD_CGROUP_CONTROLLER, udev_cgroup, SIGKILL, false, true, NULL);
} else {
/* kill idle or hanging workers */
- timeout = 3 * 1000;
+ timeout = 3 * MSEC_PER_SEC;
}
+
+ /* tell settle that we are busy or idle */
+ if (!udev_list_node_is_empty(&event_list)) {
+ int fd;
+
+ fd = open("/run/udev/queue", O_WRONLY|O_CREAT|O_CLOEXEC|O_TRUNC|O_NOFOLLOW, 0444);
+ if (fd >= 0)
+ close(fd);
+ } else {
+ unlink("/run/udev/queue");
+ }
+
fdcount = epoll_wait(fd_ep, ev, ELEMENTSOF(ev), timeout);
if (fdcount < 0)
continue;
@@ -1283,18 +1281,18 @@ int main(int argc, char *argv[])
if (worker->state != WORKER_RUNNING)
continue;
- if ((now(CLOCK_MONOTONIC) - worker->event_start_usec) > 30 * 1000 * 1000) {
+ if ((now(CLOCK_MONOTONIC) - worker->event_start_usec) > 30 * USEC_PER_SEC) {
log_error("worker [%u] %s timeout; kill it", worker->pid,
worker->event ? worker->event->devpath : "<idle>");
kill(worker->pid, SIGKILL);
worker->state = WORKER_KILLED;
+
/* drop reference taken for state 'running' */
worker_unref(worker);
if (worker->event) {
- log_error("seq %llu '%s' killed",
- udev_device_get_seqnum(worker->event->dev), worker->event->devpath);
+ log_error("seq %llu '%s' killed", udev_device_get_seqnum(worker->event->dev), worker->event->devpath);
worker->event->exitcode = -64;
- event_queue_delete(worker->event, true);
+ event_queue_delete(worker->event);
worker->event = NULL;
}
}
@@ -1317,7 +1315,7 @@ int main(int argc, char *argv[])
}
/* check for changed config, every 3 seconds at most */
- if ((now(CLOCK_MONOTONIC) - last_usec) > 3 * 1000 * 1000) {
+ if ((now(CLOCK_MONOTONIC) - last_usec) > 3 * USEC_PER_SEC) {
if (udev_rules_check_timestamp(rules))
reload = true;
if (udev_builtin_validate(udev))
@@ -1390,8 +1388,8 @@ int main(int argc, char *argv[])
rc = EXIT_SUCCESS;
exit:
- udev_queue_export_cleanup(udev_queue_export);
udev_ctrl_cleanup(udev_ctrl);
+ unlink("/run/udev/queue");
exit_daemonize:
if (fd_ep >= 0)
close(fd_ep);
@@ -1406,7 +1404,6 @@ exit_daemonize:
if (worker_watch[WRITE_END] >= 0)
close(worker_watch[WRITE_END]);
udev_monitor_unref(monitor);
- udev_queue_export_unref(udev_queue_export);
udev_ctrl_connection_unref(ctrl_conn);
udev_ctrl_unref(udev_ctrl);
label_finish();
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-24 16:09:29 +0000