diff --git a/man/systemd.device.xml b/man/systemd.device.xml index effed098dd..d156095526 100644 --- a/man/systemd.device.xml +++ b/man/systemd.device.xml @@ -83,6 +83,12 @@ the escaping logic used to convert a file system path to a unit name see systemd.unit5. + + Device units will be reloaded by systemd whenever the + corresponding device generates a changed event. + Other units can use ReloadPropagatedFrom= to react + to that event + diff --git a/src/core/device.c b/src/core/device.c index 87186f135b..5366ba050f 100644 --- a/src/core/device.c +++ b/src/core/device.c @@ -766,7 +766,27 @@ static int device_dispatch_io(sd_event_source *source, int fd, uint32_t revents, return 0; } - if (streq(action, "remove")) { + if (streq(action, "change")) { + _cleanup_free_ char *e = NULL; + Unit *u; + + r = unit_name_from_path(sysfs, ".device", &e); + if (r < 0) + return log_error_errno(r, "Failed to generate unit name from device path: %m"); + + u = manager_get_unit(m, e); + if (!u) { + log_error("Failed to get unit from sysfs name."); + return 0; + } + + r = manager_add_job(m, JOB_RELOAD, u, JOB_REPLACE, NULL, NULL); + if (r < 0) { + log_error_errno(r, "Failed to add job to manager : %m"); + return 0; + } + + } else if (streq(action, "remove")) { r = swap_process_device_remove(m, dev); if (r < 0) log_error_errno(r, "Failed to process swap device remove event: %m");