Yu Watanabe [Tue, 31 Aug 2021 17:20:33 +0000 (02:20 +0900)]
udev-node: always atomically create symlink to device node
By the previous commit, it is not necessary to distinguish if the devlink
already exists. Also, I cannot find any significant advantages of the
previous complecated logic, that is, first try to create directly, and then
fallback to atomically creation. Moreover, such logic increases the chance
of conflicts between multiple udev workers.
This makes devlinks always created atomically. Hopefully, this reduces the
conflicts between the workers.
udev-node: assume no new claim to a symlink if /run/udev/links is not updated
During creating a symlink to a device node, if another device node which
requests the same symlink is added/removed, `stat_inode_unmodified()`
should always detects that. We do not need to continue the loop
unconditionally.
Yu Watanabe [Tue, 31 Aug 2021 19:16:21 +0000 (04:16 +0900)]
udev-node: save information about device node and priority in symlink
Previously, we only store device IDs in /run/udev/links, and when
creating/removing device node symlink, we create sd_device object
corresponds to the IDs and read device node and priority from the
object. That requires parsing uevent and udev database files.
This makes link_find_prioritized() get the most prioritzed device node
without parsing the files.
Michael Biebl [Mon, 9 Aug 2021 17:45:48 +0000 (19:45 +0200)]
test: fix TEST-10-ISSUE-2467
Depending on the timing, socat will either get ECONNREFUSED oder EPIPE
from systemd. The latter will cause it to exit(1) and subsequently the
test to fail.
We are not actually interested in the return code of socat though. The
test is supposed to check, whether rate limiting of a socket unit works
properly.
So ignore any failures from the socat invocation and instead check, if
test10.socket is in state "failed" with result "trigger-limit-hit" after
it has been triggered.
TriggerLimitIntervalSec= by default is set to 2s. A "sleep 10" should
give systemd enough time even on slower machines, to reach the trigger
limit.
For better readability, break the test into separate ExecStart lines.