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-rw-r--r--src/login/logind-dbus.c94
-rw-r--r--src/login/logind-gperf.gperf1
-rw-r--r--src/login/logind-session.c26
-rw-r--r--src/login/logind-user.c54
-rw-r--r--src/login/logind.c1
-rw-r--r--src/login/logind.conf1
-rw-r--r--src/login/logind.h4
7 files changed, 154 insertions, 27 deletions
diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 5cc90c6e24..7cc0044bab 100644
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -2753,13 +2753,101 @@ int manager_send_changed(Manager *manager, const char *property, ...) {
l);
}
+int manager_start_slice(
+ Manager *manager,
+ const char *slice,
+ const char *description,
+ const char *after,
+ const char *after2,
+ uint64_t tasks_max,
+ sd_bus_error *error,
+ char **job) {
+
+ _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+ int r;
+
+ assert(manager);
+ assert(slice);
+
+ r = sd_bus_message_new_method_call(
+ manager->bus,
+ &m,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartTransientUnit");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "ss", strempty(slice), "fail");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(m, 'a', "(sv)");
+ if (r < 0)
+ return r;
+
+ if (!isempty(description)) {
+ r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
+ if (r < 0)
+ return r;
+ }
+
+ if (!isempty(after)) {
+ r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
+ if (r < 0)
+ return r;
+ }
+
+ if (!isempty(after2)) {
+ r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "a(sa(sv))", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_call(manager->bus, m, 0, error, &reply);
+ if (r < 0)
+ return r;
+
+ if (job) {
+ const char *j;
+ char *copy;
+
+ r = sd_bus_message_read(reply, "o", &j);
+ if (r < 0)
+ return r;
+
+ copy = strdup(j);
+ if (!copy)
+ return -ENOMEM;
+
+ *job = copy;
+ }
+
+ return 1;
+}
+
int manager_start_scope(
Manager *manager,
const char *scope,
pid_t pid,
const char *slice,
const char *description,
- const char *after, const char *after2,
+ const char *after,
+ const char *after2,
+ uint64_t tasks_max,
sd_bus_error *error,
char **job) {
@@ -2827,6 +2915,10 @@ int manager_start_scope(
if (r < 0)
return r;
+ r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max);
+ if (r < 0)
+ return r;
+
r = sd_bus_message_close_container(m);
if (r < 0)
return r;
diff --git a/src/login/logind-gperf.gperf b/src/login/logind-gperf.gperf
index 9218d098e0..8552c464cc 100644
--- a/src/login/logind-gperf.gperf
+++ b/src/login/logind-gperf.gperf
@@ -34,3 +34,4 @@ Login.IdleAction, config_parse_handle_action, 0, offsetof(Manag
Login.IdleActionSec, config_parse_sec, 0, offsetof(Manager, idle_action_usec)
Login.RuntimeDirectorySize, config_parse_tmpfs_size, 0, offsetof(Manager, runtime_dir_size)
Login.RemoveIPC, config_parse_bool, 0, offsetof(Manager, remove_ipc)
+Login.UserTasksMax, config_parse_uint64, 0, offsetof(Manager, user_tasks_max)
diff --git a/src/login/logind-session.c b/src/login/logind-session.c
index 1d561a6f8a..6c4ada29fb 100644
--- a/src/login/logind-session.c
+++ b/src/login/logind-session.c
@@ -513,25 +513,31 @@ static int session_start_scope(Session *s) {
assert(s);
assert(s->user);
- assert(s->user->slice);
if (!s->scope) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_free_ char *description = NULL;
char *scope, *job = NULL;
-
- description = strjoin("Session ", s->id, " of user ", s->user->name, NULL);
- if (!description)
- return log_oom();
+ const char *description;
scope = strjoin("session-", s->id, ".scope", NULL);
if (!scope)
return log_oom();
- r = manager_start_scope(s->manager, scope, s->leader, s->user->slice, description, "systemd-logind.service", "systemd-user-sessions.service", &error, &job);
+ description = strjoina("Session ", s->id, " of user ", s->user->name, NULL);
+
+ r = manager_start_scope(
+ s->manager,
+ scope,
+ s->leader,
+ s->user->slice,
+ description,
+ "systemd-logind.service",
+ "systemd-user-sessions.service",
+ (uint64_t) -1, /* disable TasksMax= for the scope, rely on the slice setting for it */
+ &error,
+ &job);
if (r < 0) {
- log_error("Failed to start session scope %s: %s %s",
- scope, bus_error_message(&error, r), error.name);
+ log_error_errno(r, "Failed to start session scope %s: %s", scope, bus_error_message(&error, r));
free(scope);
return r;
} else {
@@ -543,7 +549,7 @@ static int session_start_scope(Session *s) {
}
if (s->scope)
- hashmap_put(s->manager->session_units, s->scope, s);
+ (void) hashmap_put(s->manager->session_units, s->scope, s);
return 0;
}
diff --git a/src/login/logind-user.c b/src/login/logind-user.c
index 56bc5a010c..7bdbe6583c 100644
--- a/src/login/logind-user.c
+++ b/src/login/logind-user.c
@@ -25,6 +25,7 @@
#include <unistd.h>
#include "alloc-util.h"
+#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-util.h"
#include "clean-ipc.h"
@@ -44,6 +45,7 @@
#include "rm-rf.h"
#include "smack-util.h"
#include "special.h"
+#include "stdio-util.h"
#include "string-table.h"
#include "unit-name.h"
#include "user-util.h"
@@ -392,34 +394,51 @@ fail:
}
static int user_start_slice(User *u) {
- char *job;
int r;
assert(u);
if (!u->slice) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- char lu[DECIMAL_STR_MAX(uid_t) + 1], *slice;
- sprintf(lu, UID_FMT, u->uid);
+ char lu[DECIMAL_STR_MAX(uid_t) + 1], *slice, *job;
+ const char *description;
+
+ u->slice_job = mfree(u->slice_job);
+ xsprintf(lu, UID_FMT, u->uid);
r = slice_build_subslice(SPECIAL_USER_SLICE, lu, &slice);
if (r < 0)
- return r;
-
- r = manager_start_unit(u->manager, slice, &error, &job);
+ return log_error_errno(r, "Failed to build slice name: %m");
+
+ description = strjoina("User Slice of ", u->name);
+
+ r = manager_start_slice(
+ u->manager,
+ slice,
+ description,
+ "systemd-logind.service",
+ "systemd-user-sessions.service",
+ u->manager->user_tasks_max,
+ &error,
+ &job);
if (r < 0) {
- log_error("Failed to start user slice: %s", bus_error_message(&error, r));
- free(slice);
+
+ if (sd_bus_error_has_name(&error, BUS_ERROR_UNIT_EXISTS))
+ /* The slice already exists? If so, that's fine, let's just reuse it */
+ u->slice = slice;
+ else {
+ log_error_errno(r, "Failed to start user slice %s, ignoring: %s (%s)", slice, bus_error_message(&error, r), error.name);
+ free(slice);
+ /* we don't fail due to this, let's try to continue */
+ }
} else {
u->slice = slice;
-
- free(u->slice_job);
u->slice_job = job;
}
}
if (u->slice)
- hashmap_put(u->manager->user_units, u->slice, u);
+ (void) hashmap_put(u->manager->user_units, u->slice, u);
return 0;
}
@@ -433,16 +452,21 @@ static int user_start_service(User *u) {
if (!u->service) {
char lu[DECIMAL_STR_MAX(uid_t) + 1], *service;
- sprintf(lu, UID_FMT, u->uid);
+ xsprintf(lu, UID_FMT, u->uid);
r = unit_name_build("user", lu, ".service", &service);
if (r < 0)
return log_error_errno(r, "Failed to build service name: %m");
- r = manager_start_unit(u->manager, service, &error, &job);
+ r = manager_start_unit(
+ u->manager,
+ service,
+ &error,
+ &job);
if (r < 0) {
- log_error("Failed to start user service: %s", bus_error_message(&error, r));
+ log_error_errno(r, "Failed to start user service, ignoring: %s", bus_error_message(&error, r));
free(service);
+ /* we don't fail due to this, let's try to continue */
} else {
u->service = service;
@@ -452,7 +476,7 @@ static int user_start_service(User *u) {
}
if (u->service)
- hashmap_put(u->manager->user_units, u->service, u);
+ (void) hashmap_put(u->manager->user_units, u->service, u);
return 0;
}
diff --git a/src/login/logind.c b/src/login/logind.c
index be6bbe5b5c..7b41174c64 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -70,6 +70,7 @@ static Manager *manager_new(void) {
m->idle_action_not_before_usec = now(CLOCK_MONOTONIC);
m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */
+ m->user_tasks_max = UINT64_C(4096);
m->devices = hashmap_new(&string_hash_ops);
m->seats = hashmap_new(&string_hash_ops);
diff --git a/src/login/logind.conf b/src/login/logind.conf
index 6df6f04c77..81f6695434 100644
--- a/src/login/logind.conf
+++ b/src/login/logind.conf
@@ -32,3 +32,4 @@
#IdleActionSec=30min
#RuntimeDirectorySize=10%
#RemoveIPC=yes
+#UserTasksMax=4096
diff --git a/src/login/logind.h b/src/login/logind.h
index 44e05d8b01..f34544e64c 100644
--- a/src/login/logind.h
+++ b/src/login/logind.h
@@ -134,6 +134,7 @@ struct Manager {
sd_event_source *lid_switch_ignore_event_source;
size_t runtime_dir_size;
+ uint64_t user_tasks_max;
};
int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device);
@@ -171,7 +172,8 @@ int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name
int manager_send_changed(Manager *manager, const char *property, ...) _sentinel_;
-int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, const char *after, const char *after2, sd_bus_error *error, char **job);
+int manager_start_slice(Manager *manager, const char *slice, const char *description, const char *after, const char *after2, uint64_t tasks_max, sd_bus_error *error, char **job);
+int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, const char *after, const char *after2, uint64_t tasks_max, sd_bus_error *error, char **job);
int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-01 12:18:21 +0000