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-rw-r--r--src/core/mount.c60
-rw-r--r--src/core/service.c64
-rw-r--r--src/core/socket.c54
-rw-r--r--src/core/swap.c57
-rw-r--r--src/core/unit.c76
-rw-r--r--src/core/unit.h2
6 files changed, 122 insertions, 191 deletions
diff --git a/src/core/mount.c b/src/core/mount.c
index e5f5e4272e..2aaf78ceae 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -877,56 +877,23 @@ static void mount_enter_mounted(Mount *m, MountResult f) {
static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
int r;
- Set *pid_set = NULL;
- bool wait_for_exit = false;
assert(m);
if (f != MOUNT_SUCCESS)
m->result = f;
- if (m->kill_context.kill_mode != KILL_NONE) {
- int sig = (state == MOUNT_MOUNTING_SIGTERM ||
- state == MOUNT_UNMOUNTING_SIGTERM ||
- state == MOUNT_REMOUNTING_SIGTERM) ? m->kill_context.kill_signal : SIGKILL;
-
- if (m->control_pid > 0) {
- if (kill_and_sigcont(m->control_pid, sig) < 0 && errno != ESRCH)
-
- log_warning_unit(UNIT(m)->id,
- "Failed to kill control process %li: %m",
- (long) m->control_pid);
- else
- wait_for_exit = true;
- }
-
- if (m->kill_context.kill_mode == KILL_CONTROL_GROUP) {
-
- if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
- r = -ENOMEM;
- goto fail;
- }
-
- /* Exclude the control pid from being killed via the cgroup */
- if (m->control_pid > 0)
- if ((r = set_put(pid_set, LONG_TO_PTR(m->control_pid))) < 0)
- goto fail;
-
- r = cgroup_bonding_kill_list(UNIT(m)->cgroup_bondings, sig, true, false, pid_set, NULL);
- if (r < 0) {
- if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
- log_warning_unit(UNIT(m)->id,
- "Failed to kill control group: %s",
- strerror(-r));
- } else if (r > 0)
- wait_for_exit = true;
-
- set_free(pid_set);
- pid_set = NULL;
- }
- }
+ r = unit_kill_context(
+ UNIT(m),
+ &m->kill_context,
+ state != MOUNT_MOUNTING_SIGTERM && state != MOUNT_UNMOUNTING_SIGTERM && state != MOUNT_REMOUNTING_SIGTERM,
+ -1,
+ m->control_pid,
+ false);
+ if (r < 0)
+ goto fail;
- if (wait_for_exit) {
+ if (r > 0) {
r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
if (r < 0)
goto fail;
@@ -947,14 +914,15 @@ fail:
mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
else
mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
-
- if (pid_set)
- set_free(pid_set);
}
void warn_if_dir_nonempty(const char *unit, const char* where) {
+ assert(unit);
+ assert(where);
+
if (dir_is_empty(where) > 0)
return;
+
log_struct_unit(LOG_NOTICE,
unit,
"MESSAGE=%s: Directory %s to mount over is not empty, mounting anyway.",
diff --git a/src/core/service.c b/src/core/service.c
index baddc5ade4..914146383c 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1955,64 +1955,23 @@ fail:
static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
int r;
- Set *pid_set = NULL;
- bool wait_for_exit = false;
assert(s);
if (f != SERVICE_SUCCESS)
s->result = f;
- if (s->kill_context.kill_mode != KILL_NONE) {
- int sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
-
- if (s->main_pid > 0) {
- if (kill_and_sigcont(s->main_pid, sig) < 0 && errno != ESRCH)
- log_warning_unit(UNIT(s)->id,
- "Failed to kill main process %li: %m", (long) s->main_pid);
- else
- wait_for_exit = !s->main_pid_alien;
- }
-
- if (s->control_pid > 0) {
- if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
- log_warning_unit(UNIT(s)->id,
- "Failed to kill control process %li: %m", (long) s->control_pid);
- else
- wait_for_exit = true;
- }
-
- if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
-
- pid_set = set_new(trivial_hash_func, trivial_compare_func);
- if (!pid_set) {
- r = -ENOMEM;
- goto fail;
- }
-
- /* Exclude the main/control pids from being killed via the cgroup */
- if (s->main_pid > 0)
- if ((r = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0)
- goto fail;
-
- if (s->control_pid > 0)
- if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
- goto fail;
-
- r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
- if (r < 0) {
- if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
- log_warning_unit(UNIT(s)->id,
- "Failed to kill control group: %s", strerror(-r));
- } else if (r > 0)
- wait_for_exit = true;
-
- set_free(pid_set);
- pid_set = NULL;
- }
- }
+ r = unit_kill_context(
+ UNIT(s),
+ &s->kill_context,
+ state != SERVICE_STOP_SIGTERM && state != SERVICE_FINAL_SIGTERM,
+ s->main_pid,
+ s->control_pid,
+ s->main_pid_alien);
+ if (r < 0)
+ goto fail;
- if (wait_for_exit) {
+ if (r > 0) {
if (s->timeout_stop_usec > 0) {
r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_stop_usec, &s->timer_watch);
if (r < 0)
@@ -2035,9 +1994,6 @@ fail:
service_enter_stop_post(s, SERVICE_FAILURE_RESOURCES);
else
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, true);
-
- if (pid_set)
- set_free(pid_set);
}
static void service_enter_stop(Service *s, ServiceResult f) {
diff --git a/src/core/socket.c b/src/core/socket.c
index f74d88e602..2105369018 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1288,54 +1288,23 @@ fail:
static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
int r;
- Set *pid_set = NULL;
- bool wait_for_exit = false;
assert(s);
if (f != SOCKET_SUCCESS)
s->result = f;
- if (s->kill_context.kill_mode != KILL_NONE) {
- int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
-
- if (s->control_pid > 0) {
- if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
-
- log_warning_unit(UNIT(s)->id,
- "Failed to kill control process %li: %m",
- (long) s->control_pid);
- else
- wait_for_exit = true;
- }
-
- if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
-
- if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
- r = -ENOMEM;
- goto fail;
- }
-
- /* Exclude the control pid from being killed via the cgroup */
- if (s->control_pid > 0)
- if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
- goto fail;
-
- r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
- if (r < 0) {
- if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
- log_warning_unit(UNIT(s)->id,
- "Failed to kill control group: %s",
- strerror(-r));
- } else if (r > 0)
- wait_for_exit = true;
-
- set_free(pid_set);
- pid_set = NULL;
- }
- }
+ r = unit_kill_context(
+ UNIT(s),
+ &s->kill_context,
+ state != SOCKET_STOP_PRE_SIGTERM && state != SOCKET_FINAL_SIGTERM,
+ -1,
+ s->control_pid,
+ false);
+ if (r < 0)
+ goto fail;
- if (wait_for_exit) {
+ if (r > 0) {
r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_usec, &s->timer_watch);
if (r < 0)
goto fail;
@@ -1357,9 +1326,6 @@ fail:
socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
else
socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
-
- if (pid_set)
- set_free(pid_set);
}
static void socket_enter_stop_pre(Socket *s, SocketResult f) {
diff --git a/src/core/swap.c b/src/core/swap.c
index a2f11875a2..61ce8316c2 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -646,57 +646,23 @@ static void swap_enter_active(Swap *s, SwapResult f) {
static void swap_enter_signal(Swap *s, SwapState state, SwapResult f) {
int r;
- Set *pid_set = NULL;
- bool wait_for_exit = false;
assert(s);
if (f != SWAP_SUCCESS)
s->result = f;
- if (s->kill_context.kill_mode != KILL_NONE) {
- int sig = (state == SWAP_ACTIVATING_SIGTERM ||
- state == SWAP_DEACTIVATING_SIGTERM) ? s->kill_context.kill_signal : SIGKILL;
-
- if (s->control_pid > 0) {
- if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
-
- log_warning_unit(UNIT(s)->id,
- "Failed to kill control process %li: %m",
- (long) s->control_pid);
- else
- wait_for_exit = true;
- }
-
- if (s->kill_context.kill_mode == KILL_CONTROL_GROUP) {
-
- pid_set = set_new(trivial_hash_func, trivial_compare_func);
- if (!pid_set) {
- r = log_oom();
- goto fail;
- }
-
- /* Exclude the control pid from being killed via the cgroup */
- if (s->control_pid > 0) {
- r = set_put(pid_set, LONG_TO_PTR(s->control_pid));
- if (r < 0)
- goto fail;
- }
-
- r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL);
- if (r < 0) {
- if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
- log_warning_unit(UNIT(s)->id,
- "Failed to kill control group: %s", strerror(-r));
- } else if (r > 0)
- wait_for_exit = true;
-
- set_free(pid_set);
- pid_set = NULL;
- }
- }
+ r = unit_kill_context(
+ UNIT(s),
+ &s->kill_context,
+ state != SWAP_ACTIVATING_SIGTERM && state != SWAP_DEACTIVATING_SIGTERM,
+ -1,
+ s->control_pid,
+ false);
+ if (r < 0)
+ goto fail;
- if (wait_for_exit) {
+ if (r > 0) {
r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_usec, &s->timer_watch);
if (r < 0)
goto fail;
@@ -712,9 +678,6 @@ fail:
"%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
swap_enter_dead(s, SWAP_FAILURE_RESOURCES);
-
- if (pid_set)
- set_free(pid_set);
}
static void swap_enter_activating(Swap *s) {
diff --git a/src/core/unit.c b/src/core/unit.c
index b2a47653b6..f7d00b6030 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -2807,6 +2807,82 @@ int unit_remove_drop_in(Unit *u, bool runtime, const char *name) {
return 0;
}
+int unit_kill_context(
+ Unit *u,
+ KillContext *c,
+ bool sigkill,
+ pid_t main_pid,
+ pid_t control_pid,
+ bool main_pid_alien) {
+
+ int sig, wait_for_exit = 0, r;
+
+ assert(u);
+ assert(c);
+
+ if (c->kill_mode == KILL_NONE)
+ return 0;
+
+ sig = sigkill ? SIGKILL : c->kill_signal;
+
+ if (main_pid > 0) {
+ r = kill_and_sigcont(main_pid, sig);
+
+ if (r < 0 && r != -ESRCH) {
+ _cleanup_free_ char *comm = NULL;
+ get_process_comm(main_pid, &comm);
+
+ log_warning_unit(u->id, "Failed to kill main process %li (%s): %s",
+ (long) main_pid, strna(comm), strerror(-r));
+ } else
+ wait_for_exit = !main_pid_alien;
+ }
+
+ if (control_pid > 0) {
+ r = kill_and_sigcont(control_pid, sig);
+
+ if (r < 0 && r != -ESRCH) {
+ _cleanup_free_ char *comm = NULL;
+ get_process_comm(control_pid, &comm);
+
+ log_warning_unit(u->id,
+ "Failed to kill control process %li (%s): %s",
+ (long) control_pid, strna(comm), strerror(-r));
+ } else
+ wait_for_exit = true;
+ }
+
+ if (c->kill_mode == KILL_CONTROL_GROUP) {
+ _cleanup_set_free_ Set *pid_set = NULL;
+
+ pid_set = set_new(trivial_hash_func, trivial_compare_func);
+ if (!pid_set)
+ return -ENOMEM;
+
+ /* Exclude the main/control pids from being killed via the cgroup */
+ if (main_pid > 0) {
+ r = set_put(pid_set, LONG_TO_PTR(main_pid));
+ if (r < 0)
+ return r;
+ }
+
+ if (control_pid > 0) {
+ r = set_put(pid_set, LONG_TO_PTR(control_pid));
+ if (r < 0)
+ return r;
+ }
+
+ r = cgroup_bonding_kill_list(u->cgroup_bondings, sig, true, false, pid_set, NULL);
+ if (r < 0) {
+ if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ log_warning_unit(u->id, "Failed to kill control group: %s", strerror(-r));
+ } else if (r > 0)
+ wait_for_exit = true;
+ }
+
+ return wait_for_exit;
+}
+
static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = {
[UNIT_ACTIVE] = "active",
[UNIT_RELOADING] = "reloading",
diff --git a/src/core/unit.h b/src/core/unit.h
index 297b35d8f5..c90210302d 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -557,6 +557,8 @@ ExecContext *unit_get_exec_context(Unit *u);
int unit_write_drop_in(Unit *u, bool runtime, const char *name, const char *data);
int unit_remove_drop_in(Unit *u, bool runtime, const char *name);
+int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid_t control_pid, bool main_pid_alien);
+
const char *unit_active_state_to_string(UnitActiveState i);
UnitActiveState unit_active_state_from_string(const char *s);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-25 10:38:31 +0000