diff --git a/man/journalctl.xml b/man/journalctl.xml index 5af98c67cb..b281f26b45 100644 --- a/man/journalctl.xml +++ b/man/journalctl.xml @@ -91,8 +91,14 @@ paths may be specified. If a file path refers to an executable file, this is equivalent to an _EXE= match for the canonicalized binary path. Similarly, if a path refers - to a device node, this is equivalent to a - _KERNEL_DEVICE= match for the device. + to a device node then match is added for the kernel name of the + device (_KERNEL_DEVICE=). Also, matches for the + kernel names of all the parent devices are added automatically. + Device node paths are not stable across reboots, therefore match + for the current boot id (_BOOT_ID=) is + always added as well. Note that only the log entries for + the existing device nodes maybe queried by providing path to + the device node. Additional constraints may be added using options , , etc., to diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c index 38fb43970e..20f7082175 100644 --- a/src/journal/journalctl.c +++ b/src/journal/journalctl.c @@ -220,6 +220,10 @@ static int add_matches_for_device(sd_journal *j, const char *devpath) { d = udev_device_get_parent(d); } + r = add_match_this_boot(j, arg_machine); + if (r < 0) + return log_error_errno(r, "Failed to add match for the current boot: %m"); + return 0; }