121 lines
4.6 KiB
Diff
121 lines
4.6 KiB
Diff
From 2b3509a898dcb65d6fba41f3c9cd484b00730017 Mon Sep 17 00:00:00 2001
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From: Michal Schmidt <mschmidt@redhat.com>
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Date: Thu, 15 Nov 2012 16:55:09 +0100
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Subject: [PATCH] revert udev killing
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revert of upstream commit 194bbe33382f5365be3865ed1779147cb680f1d3
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---
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src/udev/udevd.c | 32 ++++++++++++++++----------------
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1 file changed, 16 insertions(+), 16 deletions(-)
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diff --git a/src/udev/udevd.c b/src/udev/udevd.c
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index ebd601e..53322b0 100644
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--- a/src/udev/udevd.c
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+++ b/src/udev/udevd.c
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@@ -74,7 +74,6 @@ static int exec_delay;
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static sigset_t sigmask_orig;
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static UDEV_LIST(event_list);
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static UDEV_LIST(worker_list);
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-char *udev_cgroup;
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static bool udev_exit;
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enum event_state {
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@@ -453,13 +452,22 @@ static int event_queue_insert(struct udev_device *dev)
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return 0;
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}
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-static void worker_kill(struct udev *udev)
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+static void worker_kill(struct udev *udev, int retain)
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{
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struct udev_list_node *loop;
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+ int max;
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+
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+ if (children <= retain)
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+ return;
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+
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+ max = children - retain;
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udev_list_node_foreach(loop, &worker_list) {
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struct worker *worker = node_to_worker(loop);
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+ if (max-- <= 0)
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+ break;
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+
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if (worker->state == WORKER_KILLED)
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continue;
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@@ -631,7 +639,7 @@ static struct udev_ctrl_connection *handle_ctrl_msg(struct udev_ctrl *uctrl)
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log_debug("udevd message (SET_LOG_PRIORITY) received, log_priority=%i\n", i);
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log_set_max_level(i);
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udev_set_log_priority(udev, i);
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- worker_kill(udev);
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+ worker_kill(udev, 0);
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}
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if (udev_ctrl_get_stop_exec_queue(ctrl_msg) > 0) {
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@@ -673,7 +681,7 @@ static struct udev_ctrl_connection *handle_ctrl_msg(struct udev_ctrl *uctrl)
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}
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free(key);
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}
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- worker_kill(udev);
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+ worker_kill(udev, 0);
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}
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i = udev_ctrl_get_set_children_max(ctrl_msg);
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@@ -1198,10 +1206,6 @@ int main(int argc, char *argv[])
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rc = 3;
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goto exit;
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}
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-
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- /* get our own cgroup, we regularly kill everything udev has left behind */
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- if (cg_get_by_pid(SYSTEMD_CGROUP_CONTROLLER, 0, &udev_cgroup) < 0)
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- udev_cgroup = NULL;
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} else {
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/* open control and netlink socket */
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udev_ctrl = udev_ctrl_new(udev);
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@@ -1400,7 +1404,7 @@ int main(int argc, char *argv[])
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/* discard queued events and kill workers */
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event_queue_cleanup(udev, EVENT_QUEUED);
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- worker_kill(udev);
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+ worker_kill(udev, 0);
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/* exit after all has cleaned up */
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if (udev_list_node_is_empty(&event_list) && udev_list_node_is_empty(&worker_list))
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@@ -1408,13 +1412,9 @@ int main(int argc, char *argv[])
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/* timeout at exit for workers to finish */
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timeout = 30 * 1000;
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- } else if (udev_list_node_is_empty(&event_list) && !children) {
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+ } else if (udev_list_node_is_empty(&event_list) && children <= 2) {
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/* we are idle */
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timeout = -1;
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-
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- /* cleanup possible left-over processes in our cgroup */
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- if (udev_cgroup)
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- cg_kill(SYSTEMD_CGROUP_CONTROLLER, udev_cgroup, SIGKILL, false, true, NULL);
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} else {
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/* kill idle or hanging workers */
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timeout = 3 * 1000;
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@@ -1435,7 +1435,7 @@ int main(int argc, char *argv[])
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/* kill idle workers */
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if (udev_list_node_is_empty(&event_list)) {
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log_debug("cleanup idle workers\n");
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- worker_kill(udev);
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+ worker_kill(udev, 2);
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}
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/* check for hanging events */
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@@ -1490,7 +1490,7 @@ int main(int argc, char *argv[])
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/* reload requested, HUP signal received, rules changed, builtin changed */
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if (reload) {
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- worker_kill(udev);
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+ worker_kill(udev, 0);
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rules = udev_rules_unref(rules);
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udev_builtin_exit(udev);
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reload = false;
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--
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1.7.11.7
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