port number, properly access them by their IPv6 names.
This will make it easier to slice up and compile out address families
in the future.
No functional change intended.
MFC after: 6 weeks
The listed rules were incomplete and outdated. There is a much more
comprehensive comment in vm_page.h.
Reviewed by: alc, kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D20503
This is like efi_devpath_match, but allows differing device media
paths. Those just specify the partition information.
Differential Revision: https://reviews.freebsd.org/D20513
This replaces some hand-rolled routines and is substantially faster
since libelftc uses a hash table for lookups and insertions, whereas
elfcopy would perform a linear scan of the table.
PR: 234949
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20473
When removing a section, we would loop over all sections looking for
a corresponding relocation section. With r348652 it is much faster
to just use elf_getscn().
PR: 234949
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20471
The tree is indexed by section number. This speeds up elf_getscn()
and its callers, which previously had to traverse a linked list. In
particular, since .shstrtab is often the last section in a file,
elf_strptr() would have to traverse the entire list.
PR: 234949
Reviewed by: emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20443
if a USB transfer is cancelled that we need to fake a completion event.
Implement missing support in ugen_fs_copy_out() to handle this.
This fixes issues with webcamd(8) and firefox.
MFC after: 3 days
Sponsored by: Mellanox Technologies
in the loss of a KASSERT that guarded against the invalidation a wired
mapping. Restore this KASSERT.
Remove an unnecessary KASSERT from pmap_demote_pde_locked(). It guards
against a state that was already handled at the start of the function.
Reviewed by: kib
X-MFC with: r348476
I believe this was introduced in the original '-r' commit, r231911 (2012).
At the time, the scope was limited to a 1 second sleep. r332518 (2018)
added '-R', which increased the potential duration of the affected interval
(from 1 to N seconds) by permitting arbitrary restart intervals.
Instead, handle SIGTERM normally during restart-sleep, when the monitored
process is not running, and shut down promptly.
(I noticed this behavior when debugging a child process that exited quickly
under the 'daemon -r -R 30' environment. 'kill <daemonpid>' had no
immediate effect and the monitor process slept until the next restart
attempt. This was annoying.)
Reviewed by: allanjude, imp, markj
Differential Revision: https://reviews.freebsd.org/D20509
After our migration (of certain architectures) to lld the kernel is built
with a unique build-ID. Make it available via a sysctl and uname(1) to
allow the user to identify their running kernel.
Submitted by: Ali Mashtizadeh <ali_mashtizadeh.com>
MFC after: 2 weeks
Relnotes: Yes
Event: Waterloo Hackathon 2019
Differential Revision: https://reviews.freebsd.org/D20326
To facilitate experimentation with LTO we require an ar that supports
LLVM IR, and to a lesser degree also an nm. As a first step always
install llvm-ar and llvm-nm.
Sponsored by: The FreeBSD Foundation
In current RDMACM implementation RDMACM server will not find a GID
index when the request was prio-tagged and the sever is non
prio-tagged and vise-versa.
According to 802.1Q-2014, VLAN tagged packets with VLAN id 0 should
be considered as untagged. Treat RDMACM request the same.
Reviewed by: hselasky, kib
MFC after: 3 Days
Sponsored by: Mellanox Technologies
Register MODULE_PNP_INFO for virtio devices using the newbus PNP information
provided by the previous commit. Matching can be quite simple; existing
probe routines only matched on bus (implicit) and device_type. The same
matching criteria are retained exactly, but is now also available to
devmatch(8).
Reviewed by: bryanv, markj; imp (earlier version)
Differential Revision: https://reviews.freebsd.org/D20407
Expose the same fields and widths from both vtio buses, even though they
don't quite line up; several virtio drivers can attach to both buses,
and sharing a PNP info table for both seems more convenient.
In practice, I doubt any virtio driver really needs to match on anything
other than bus and device_type (eliminating the unused entries for
vtmmio), and also in practice device_type is << 2^16 (so far, values
range from 1 to 20). So it might be fine to only expose a 16-bit
device_type for PNP purposes. On the other hand, I don't see much harm
in overkill here.
Reviewed by: bryanv, markj (earlier version)
Differential Revision: https://reviews.freebsd.org/D20406
random(4) masks unregistered entropy sources. Prior to this revision,
virtio_random(4) did not correctly register a random_source and did not
function as a source of entropy.
Random source registration for loadable pure sources requires registering a
poll callback, which is invoked periodically by random(4)'s harvestq
kthread. The periodic poll makes virtio_random(4)'s periodic entropy
collection redundant, so this revision removes the callout.
The current random source API is somewhat limiting, so simply fail to attach
any virtio_random devices if one is already registered as a source. This
scenario is expected to be uncommon.
While here, handle the possibility of short reads from the hypervisor random
device gracefully / correctly. It is not clear why a hypervisor would
return a short read or if it is allowed by spec, but we may as well handle
it.
Reviewed by: bryanv (earlier version), markm
Security: yes (note: many other "pure" random sources remain broken)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D20419
Consensus seems to be that eliding blank lines for functions with no local
variables is acceptable. Codify that explicitly in the style document.
Reported by: jhb
Reviewed by: delphij, imp, vangyzen (earlier version); rgrimes
With feedback from: kib
Differential Revision: https://reviews.freebsd.org/D20448
Without this patch, mountd would delete/load all exports from the exports
file(s) when it receives a SIGHUP. This works fine for small exports file(s),
but can take several seconds to do when there are large numbers (10000+) of
exported file systems. Most of this time is spent doing the system calls
that delete/export each of these file systems. When the "-S" option
has been specified (the default these days), the nfsd threads are suspended
for several seconds while the reload is done.
This patch changes mountd so that it only does system calls for file systems
where the exports have been changed/added/deleted as compared to the exports
done for the previous load/reload of the exports file(s).
Basically, when SIGHUP is posted to mountd, it saves the exportlist structures
from the previous load and creates a new set of structures from the current
exports file(s). Then it compares the current with the previous and only does
system calls for cases that have been changed/added/deleted.
The nfsd threads do not need to be suspended until the comparison step is
being done. This results in a suspension period of milliseconds for a server
with 10000+ exported file systems.
There is some code using a LOGDEBUG() macro that allow runtime debugging
output via syslog(LOG_DEBUG,...) that can be enabled by creating a file
called /var/log/mountd.debug. This code is expected to be replaced with
code that uses dtrace by cy@ in the near future, once issues w.r.t. dtrace
in stable/12 have been resolved.
The patch should not change the usage of the exports file(s), but improves
the performance of reloading large exports file(s) where there are only a
small number of changes done to the file(s).
Tested by: pen@lysator.liu.se
PR: 237860
Reviewed by: kib
MFC after: 1 month
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D20487
illumos/illumos-gate@6fe4f3002c
Reviewed by: Sara Hartse <sara.hartse@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: Pavel Zakharov <pavel.zakharov@delphix.com>
This is irrelevant to FreeBSD, just to reduce divergence.
illumos/illumos-gate@17fb938fd6
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Richard Lowe <richlowe@richlowe.net>
Author: Matthew Ahrens <mahrens@delphix.com>
illumos/illumos-gate@2258ad0b75
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed by: Matt Ahrens <matt@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: George Wilson <george.wilson@delphix.com>
* Fix boot env back compat
zfsboot must try zfsloader before loader in order to remain compatible
with boot environments created prior to zfs functionality being rolled
into loader proper.
* Improve comments in zfsboot
Explain the significance of the load path order, and put the comment
about looping through the paths in the appropriate scope.
Obtained From: TrueNAS commit 4c60c62fcf0b6b6eac98ee8d46e7bbea64bc86f5
Submitted by: Ryan Moeller <ryan@freqlabs.com>
