diff options
| -rw-r--r-- | man/journalctl.xml | 10 | ||||
| -rw-r--r-- | src/journal/journalctl.c | 4 |
2 files changed, 12 insertions, 2 deletions
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 <literal>_EXE=</literal> match for the canonicalized binary path. Similarly, if a path refers - to a device node, this is equivalent to a - <literal>_KERNEL_DEVICE=</literal> match for the device.</para> + to a device node then match is added for the kernel name of the + device (<literal>_KERNEL_DEVICE=</literal>). 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 (<literal>_BOOT_ID=</literal>) 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.</para> <para>Additional constraints may be added using options <option>--boot</option>, <option>--unit=</option>, 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; } |