two sepatate functions to make glob(3) code less obscure and more simple.
There is no needs to make them inline since it is error path which supposed
to not happes often.
Owning Giant in the init/uninit is accidental due to the moment where
VFS modules initialization is performed, and is not enforced by the
VFS interface. The Giant lock does not prevent a parallel execution
of the code, it is VFS which implements the proper protocol.
Approved by: des (pseudofs maintainer)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Our mprotect() function seems to take a "const void *" address to the
pages whose permissions need to be adjusted. POSIX uses "void *". Simply
stick to the POSIX one to prevent us from writing unportable code.
PR: 211423 (exp-run)
Tested by: antoine@ (Thanks!)
CPU number for MPC85XX is a duplicate for E500. Since we don't support MPC85XX
"uncore" registers right now, rather than renumbering it simply remove it, and
it will properly use the E500 CPU ID.
Summary:
MPC85XX and QorIQ are very similar. When the DPAA dTSEC driver was
added, QORIQ_DPAA was brought in as a config option to support the differences
in hardware register settings between QorIQ (e500mc-, e5500- based) SoCs and
QUICC (e500v1/e500v2-based) SoCs, particularly in the Local Access Window (LAW)
target settings.
Unify these settings using macros to hide details and ease porting, and use a
new function (mpc85xx_is_qoriq()) to distinguish between QorIQ and QUICC SoCs at
runtime.
An alternative to using the function could be to use a variable initialized at
platform attach time, which may incur less overhead at runtime. Since it's not
in the critical path once booted, this optimization doesn't seem necessary at
first pass.
Reviewed by: nwhitehorn
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D7294
trussinfo->curthread must be initialized before calling enter_syscall(),
it is used by t->proc->abi->fetch_args().
Without that truss is segfaulting and the attached program also crash.
Submitted by: Nikita Kozlov (nikita@gandi.net)
Reviewed by: jhb
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D7399
we need to include it in -legacy or not. Since the ifdef was removed,
this broke building 10.x and older source trees on -current. Restore
just enough of _WITH_GETLINE to allow these older source trees to
still build and properly omit getline() from their -legacy library.
kgzip is only useful on i386 and has a number of other limitations.
We're better served by officially deprecating it and encouraging users
to use loader(8) instead.
Reviewed by: dteske, wblock
Differential Revision: https://reviews.freebsd.org/D7098
or "+" (these are invalid, because there is no preceding operand).
When bsdgrep attempts to emulate GNU grep in discarding and ignoring the
invalid ? or + operators, some later logic in tre_compile_fast() goes
beyond the end of the buffer, leading to a crash.
Fix this by bailing out, and reporting a bad pattern instead.
Reported by: Steve Kargl
MFC after: 1 week
The prototype and the implementation of the pfctl_load_hostid used a
different data type for one of the parameters.
Submitted by: Christian Mauderer <christian.mauderer@embedded-brains.de>
In the normal case and correct failure cases, the 'phdl' pointer is passed to
callers to use or clean up as needed. However, some failure cases returned
early, failing to export the phdl pointer.
This was introduced in the restructuring of r303533.
Reported by: Coverity
CID: 1361070
Reviewed by: markj
Sponsored by: EMC / Isilon Storage Division
TOS value 0 is valid, so use 256 as an invalid value rather than zero.
This allows users to enforce TOS == 0 with pf.
Reported by: Radek Krejča <radek.krejca@starnet.cz>
While big, the change was meant to have no effect on behavior and instead
so far we have found two regressions: one in the etcupdate tests and
another one in the games/openttd port[1].
Revert to a known working state. We will likely have to split the patch in
functional parts before bringing back the changes.
PR: 195929
Reported by: danfe, madpilot [1]
The "rtentry" zone does not use UMA_ZONE_ZINIT, so it is invalid to assume the
mutex's memory will be zero. Without MTX_NEW, garbage backing memory may
trigger the "re-initializing a mutex" assertion.
PR: 200991
Submitted by: Chang-Hsien Tsai <luke.tw AT gmail.com>
This error looks like it was a simple copy-paste typo in the original commit
for this code (r275732).
PR: 204009
Reported by: Chang-Hsien Tsai <luke.tw AT gmail.com>
Sponsored by: EMC / Isilon Storage Division
VF devices use a different register layout than PF devices. Storing
the offset in a value in the softc allows code to be shared between the
PF and VF drivers.
Reviewed by: np
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D7389
In pathological situations where the master subnet manager becomes
unresponsive for an extended period, we may otherwise end up queuing all
of the system's mbufs while waiting for a response to a path record lookup.
This addresses the same issue as commit 1e85b806f9 in Linux.
Reviewed by: cem, ngie
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
After further review of the spec, I do not think the current HotPlug
code handles slots with power controllers correctly. In particular,
the power state of the slot is to be inferred from other events, not
from examining the state of the power control bit in SLOT_CTL. For now,
disable PCI hotplug support on such slots.
PR: 211081
Tested by: Jeffrey E Pieper <jeffrey.e.pieper@intel.com>
MFC after: 3 days
All current spinning loops retry an atomic op the first chance they get,
which leads to performance degradation under load.
One classic solution to the problem consists of delaying the test to an
extent. This implementation has a trivial linear increment and a random
factor for each attempt.
For simplicity, this first thouch implementation only modifies spinning
loops where the lock owner is running. spin mutexes and thread lock were
not modified.
Current parameters are autotuned on boot based on mp_cpus.
Autotune factors are very conservative and are subject to change later.
Reviewed by: kib, jhb
Tested by: pho
MFC after: 1 week
but only in the NETMAP code. This lead to the NETMAP code paths
passing nothing up to userland.
Submitted by: Ad Schellevis <ad@opnsense.org>
Reported by: Franco Fichtner <franco@opnsense.org>
MFC after: 1 day
report the size only after first opening. And due to the events are
asynchronous, some consumers can receive this event too late and
this confuses them. This partially restores previous behaviour, and
at the same time this should fix the problem, when already opened
provider loses resize event.
PR: 211028
MFC after: 3 weeks
This addresses a regression from an earlier upstream change which caused
cma_acquire_dev() to bypass the port GID cache and instead query the HCA
for each entry in its GID table. These queries can become extremely slow on
multiport devices, which has a negative impact on connection setup times.
Discussed with: hselasky
Obtained from: Linux
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
The most recent version of bsdinstall does not seem to respect any of
the checkboxes in the "Choose the services you would like to be started
at boot" dialog. None of the chosen services end up in the rc.conf file
that is installed onto the target system.
This is caused by the bsdinstall/scripts/hardening script, which
implements the new hardening options dialog. The script starts by
overwriting the previously written rc.conf.services file:
echo -n > $BSDINSTALL_TMPETC/rc.conf.services
which is obviously incorrect. It should clear out rc.conf.hardening
instead.
Reviewed by: allanjude
PR: 211506
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D7387
OpenZFS uses feature flags instead of a zpool version number to track
features since the split from Oracle. In addition to avoiding confusion
on ZFS vs OpenZFS version numbers, this also allows features to be added
to different operating systems that use OpenZFS in different order.
The previous zfs boot code (gptzfsboot) and loader (zfsloader) blindly
tries to read the pool, and if failed provided only a vague error message.
With this change, both the boot code and loader check the MOS features
list in the ZFS label and compare it against the list of features that
the loader supports. If any unsupported feature is active, the pool is
not considered as a candidate for booting, and a helpful diagnostic
message is printed to the screen. Features that are merely enabled via
zpool upgrade, but not in use, do not block booting from the pool.
Submitted by: Toomas Soome <tsoome@me.com>
Reviewed by: delphij, mav
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D6857
For now maintain the local style in this file.
Reviewed by: jilles
Reference:
9099a9f17b
Differential Revision: https://reviews.freebsd.org/D6966 (Partial)
Submitted by: Piotr Stefaniak
to r254304, we had separate functions for reclamation and laundering
(vm_pageout_scan) versus updating usage information, i.e., "reference
bits", on active pages (vm_pageout_page_stats), and we only performed
vm_req_vmdaemon(VM_SWAP_IDLE) if vm_pages_needed was true. However, since
r254303, if vm_swap_idle_enabled was "1", we have performed
vm_req_vmdaemon(VM_SWAP_IDLE) regardless of whether we are short of free
pages. This was unintended and too aggressive, so I suspect no one uses
this feature. With this change, we restore the historical behavior and
only perform vm_req_vmdaemon(VM_SWAP_IDLE) when we are short of free
pages.
Reviewed by: kib, markj
- Re-write tcp_ctlinput6() to closely mimic the IPv4 tcp_ctlinput()
- Now that tcp_ctlinput6() updates t_maxseg, we can allow ip6_output()
to send TCP packets without looking at the tcp host cache for every
single transmit.
- Make the icmp6 code mimic the IPv4 code & avoid returning
PRC_HOSTDEAD because it is so expensive.
Without these changes in place, every TCP6 pmtu discovery or host
unreachable ICMP resulted in a call to in6_pcbnotify() which walks the
tcbinfo table with the write lock held. Because the tcbinfo table is
shared between IPv4 and IPv6, this causes huge scalabilty issues on
servers with lots of (~100K) TCP connections, to the point where even
a small percent of IPv6 traffic had a disproportionate impact on
overall throughput.
Reviewed by: bz, rrs, ae (all earlier versions), lstewart (in Netflix's tree)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D7272
Relying on the boot loader console configuration allows us to use a
common set of device hints for all SENTRY5 devices.
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D7376
allow us to add an ACPI attachment for arm64.
Obtained from: ABT Systems Ltd
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D7307
