On Thu, Oct 12, 2017 at 6:01 PM, Akira Hayakawa <ruby.w...@gmail.com> wrote:
> And I want to stop the read request because it makes it difficult to test > kernel code. > So the second question is: how can I stop the read request? You can install local udev rule that will disable udev's monitoring of the block device. # cat /etc/udev/rules.d/61-no-watch-sdb.rules ACTION!="remove", SUBSYSTEM=="block", KERNEL=="sdb*", OPTIONS:="nowatch" # udevadm control --reload-rules Udev watches exist because block layer doesn't have any generic mechanism that could be used by the tools (e2fsprogs and friends) to make sure that udev picks up changes that they did, e.g. change in filesystem label. Michal _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
