tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

udev: add emacs header line Otherwise emacs wants to use 2-space indentation and other attrocities.

tree-wide: sort includes Sort the includes accoding to the new coding style.

util-lib: split string parsing related calls from util.[ch] into parse-util.[ch]

tree-wide: remove a number of invocations of strerror() and replace by %m Let's clean up our tree a bit, and reduce invocations of the thread-unsafe strerror() by replacing it with printf()'s %m specifier.

udev: Fix ping timeout when settle timeout is 0 When running udevadm settle --timeout=0, the ping always times out, and udevadm will return 0 without checking the queue state. (David: Use a reasonable timeout to still get the barrier provided by ctrl-ping)

udev: settle should return immediately when timeout is 0 udevadm manual says: A value of 0 will check if the queue is empty and always return immediately. However, currently we ignore the deadline if the value is 0, and wait without any limit. Zero timeout behaved according to the documentation until commit ead7c62ab7 (udevadm: settle - kill alarm()). Looking at this patch, it seems that the behavior change was unintended. This patch restores the documented behavior.

udev: restore udevadm settle timeout Commit 9ea28c55a2 (udev: remove seqnum API and all assumptions about seqnums) introduced a regresion, ignoring the timeout option when waiting until the event queue is empty. Previously, if the udev event queue was not empty when the timeout was expired, udevadm settle was returning with exit code 1. To check if the queue is empty, you could invoke udevadm settle with timeout=0. This patch restores the previous behavior. (David: fixed timeout==0 handling and dropped redundant assignment)

remove unused includes This patch removes includes that are not used. The removals were found with include-what-you-use which checks if any of the symbols from a header is in use.

include <poll.h> instead of <sys/poll.h> include-what-you-use automatically does this and it makes finding unnecessary harder to spot. The only content of poll.h is a include of sys/poll.h so should be harmless.

udevadm: don't hit an assert when obsolete parameters are passed https://bugzilla.redhat.com/show_bug.cgi?id=1178051

udevadm,..: make --help output of udev tools more like the output of the various other tools

udev: never bypass our own logging framework and call vsyslog() directly from udev tools

udev: place opening { at the same line as the function declaration

libudev: queue - watch entire directory to allow the re-use of the watch descriptor

libudev: queue provide file descriptor to watch busy event queue

udevadm-settle: fixed return code for empty queue If the udev queue is empty and "/run/udev/queue" does not exist, "udevadm settle" would return with EXIT_FAILURE, because the inotify on "/run/udev/queue" would fail with ENOENT. This patch lets "udevadm settle" exit with EXIT_SUCCESS in this case.

udev: remove seqnum API and all assumptions about seqnums The way the kernel namespaces have been implemented breaks assumptions udev made regarding uevent sequence numbers. Creating devices in a namespace "steals" uevents and its sequence numbers from the host. It confuses the "udevadmin settle" logic, which might block until util a timeout is reached, even when no uevent is pending. Remove any assumptions about sequence numbers and deprecate libudev's API exposing these numbers; none of that can reliably be used anymore when namespaces are involved.

core, libsystemd, systemd, timedate, udev: spelling fixes

log: log_error() and friends add a newline after each line anyway, so avoid including it in the log strings

udevadm: modernization

udevadm,scsi_id: add short options to help strings and to the man page Also clean things up a bit here and there.

udevadm-settle: add missing brace

udevadm-settle: add parameters checking

udev: use usec_t and now()

udev: remove configuration options for /dev, /sys, /run directories

udev: fix a few issues detected by the llvm static analyzer

udev: switch to systemd logging functions

move imported udev into place