If the fast path unbusy in vm_page_replace() fails, slow path needs to
acquire the page lock, which recurses. Avoid the recursion by reusing
the code from vm_page_remove() in a new helper
vm_page_xunbusy_maybelocked().
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
Don Lewis [Wed, 1 Jun 2016 20:04:24 +0000 (20:04 +0000)]
Replace constant expressions that contain multiplications by
fractional floating point values with integer divides. This will
eliminate any chance that the compiler will generate code to evaluate
the expression using floating point at runtime.
Suggested by: bde
Submitted by: Rasool Al-Saadi <ralsaadi@swin.edu.au>
MFC after: 8 days (with r300779 and r300949)
Navdeep Parhar [Wed, 1 Jun 2016 18:46:54 +0000 (18:46 +0000)]
iw_cxgbe: Fix panic that occurs when c4iw_ev_handler tries to acquire
comp_handler_lock but c4iw_destroy_cq has already freed the CQ memory
(which is where the lock resides).
Don Lewis [Wed, 1 Jun 2016 16:56:29 +0000 (16:56 +0000)]
The (i < PROMPTLEN - 1) test added by r300442 in the code for the default
case of \c in the prompt format string is a no-op. We already passed
this test at the top of the loop, and i has not yet been incremented in
this path. Change this test to (i < PROMPTLEN - 2).
Glen Barber [Wed, 1 Jun 2016 16:45:08 +0000 (16:45 +0000)]
Revert r289096:
Files listed in 'CONFS' are not properly included in new
installations (missing from base.txz), for reasons I still
do not fully understand.
This reverts the change excluding /etc/ppp/ppp.conf from
a new installation. /etc/dma/dma.conf is also affected,
but requires a different solution, still being investigated.
Reported by: Ben Woods
Sponsored by: The FreeBSD Foundation
Conrad Meyer [Wed, 1 Jun 2016 16:12:26 +0000 (16:12 +0000)]
libthr: Use formatted PANIC()
No functional change, although _thread_printf() may be slightly less functional
or render some values differently from libc snprintf(3). No ABI change.
Do not set HWRTSEN bit when CTS-to-self is used; CTS2SELF bit triggers
CTS frame transmission by itself (and it does not work when HWRTSEN bit
is set).
Steven Hartland [Wed, 1 Jun 2016 15:39:11 +0000 (15:39 +0000)]
Fix tzsetup not installing /etc/localtime for UTC
If tzsetup UTC is run then it successfully configured the system for UTC
including installing /etc/localtime however if the user ran just tzsetup
for interactive configuration and select UTC no /etc/localtime was installed
which resulted in failures for utilities which require said file.
Change set_zone_utc to call install_zoneinfo("UTC") to ensure that
/etc/localtime is created for interactive UTC selection.
Users who have previously run tzsetup in interactive mode and select UTC
can install the missing /etc/localtime by running tzsetup -r.
This simplifies setting an initial interrupt moderation value, and
avoids most calls to evx_ev_qmoderate from contexts where MCDI is
not allowed (MCDI is need for an EVQ timer workaround in a later patch).
Submitted by: Andy Moreton <amoreton at solarflare.com>
Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D6673
Reduce the priority of cxgbei(4) driver, so it doesn't get chosen
by default. This is a workaround for a too simplistic ICL module
choosing mechanism. To use it, specify offload in ctl.conf
or iscsi.conf.
This fixes a problem where "kldload cxgbei" wedges the iSCSI stack,
if you don't have a Chelsio card installed, or the endpoints of the
iSCSI session are not reachable through addresses configured
on that interface.
Bjoern A. Zeeb [Wed, 1 Jun 2016 10:14:04 +0000 (10:14 +0000)]
The pr_destroy field does not allow us to run the teardown code in a
specific order. VNET_SYSUNINITs however are doing exactly that.
Thus remove the VIMAGE conditional field from the domain(9) protosw
structure and replace it with VNET_SYSUNINITs.
This also allows us to change some order and to make the teardown functions
file local static.
Also convert divert(4) as it uses the same mechanism ip(4) and ip6(4) use
internally.
Slightly reshuffle the SI_SUB_* fields in kernel.h and add a new ones, e.g.,
for pfil consumers (firewalls), partially for this commit and for others
to come.
Reviewed by: gnn, tuexen (sctp), jhb (kernel.h)
Obtained from: projects/vnet
MFC after: 2 weeks
X-MFC: do not remove pr_destroy
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6652
Ed Schouten [Wed, 1 Jun 2016 07:45:03 +0000 (07:45 +0000)]
Define the id_t type as required by POSIX.
It seems that all versions of POSIX that I could find require that
<sys/resource.h> defines id_t. Define it together with rlim_t. While
there, move these typedefs closer to the top of the header file, right
after the includes, which we do in most other header files.
Adrian Chadd [Wed, 1 Jun 2016 03:27:33 +0000 (03:27 +0000)]
[ath_hal] add MCI bits from ath9k for QCA9565
* Add extra debugging - the weights debugging is really useful to ensure
things are programmed into the wlan coexistence table. The weights are
what traffic priority each of the various modes get (tx, tx-high-priority,
rx-beacon, etc) if they're all zero, things work very poorly.
* Add in coex init routines from ath9k for AR9462 and QCA9565 1ANT and 2ANT.
This control things like beacon stomping, ACK handling, antennas, PA/LNA
shared, etc.
* Some ancillary bits.
TODO:
* There's some conditional stuff around MCI_ANT_ARCH_PA_LNA_SHARED() in ath9k
which doesn't always enable force-on LNA. That'll have to be examined
and merged in as appropriate.
Adrian Chadd [Wed, 1 Jun 2016 03:20:55 +0000 (03:20 +0000)]
[ath_hal] add QCA9565 bluteooth antenna control.
This configures the LNA antenna diversity control, which should be on
if wlan owns the LNA for bluetooth coexistence. Otherwise, make sure
it's off.
I think this is eventually intended to allow 1-antenna bluetooth +
wifi setups for QCA9565, but I'm not sure where that's actually configured
in ath9k.
Mark Johnston [Wed, 1 Jun 2016 02:30:06 +0000 (02:30 +0000)]
mkimg: Indicate that input file pages are unlikely to be reused.
mkimg(1) uses a swap file to back input file chunks. When the output file
is being written out, blocks of the swap file are mapped and their contents
copied. This causes the backing VM pages to enter the active queue, and when
the output file is large relative to system memory (as is generally the
case), can result in a shortfall of inactive memory. This causes the
pagedaemon to aggressively scan the active queue and swap out process
memory in an attempt to meet the shortfall. Because mkimg's input files
are typically the intermediate result of some build process, there's no
need to push them all through the active queue. Use madvise(2) to indicate
that the backing pages may be reclaimed in preference to active pages. In
the case of the swap file, these pages will be freed as soon as mkimg
exits anyway.
When using mkimg on a desktop-class system with large amounts of dirty
process memory, this change substantially improves mkimg runtime and
reduces swap usage.
Bryan Drewery [Tue, 31 May 2016 22:37:11 +0000 (22:37 +0000)]
WITH_META_MODE: Require filemon(4) be loaded.
Since META_MODE is being sold and used as a working incremental build, it won't
make much sense if filemon data is excluded. There is no way to recover
from that in a subsequent build.
Ed Schouten [Tue, 31 May 2016 19:05:41 +0000 (19:05 +0000)]
Improve POSIX conformance of <signal.h>.
- This header file has always depended on pthread_t, pthread_attr_t,
struct timespec, size_t and uid_t. Only as of POSIX 2008, these
dependencies have been states explicitly. They should now be defined.
- In our implementation, struct sigevent::sigev_notify_attributes has
type "void *" instead of "pthread_attr_t *". My guess is that this was
done to prevent pulling in the pthread types, but this can easily be
avoided by using the underlying structure types.
Andrew Turner [Tue, 31 May 2016 18:45:52 +0000 (18:45 +0000)]
Allow the kernel to boot on a CPU where the devicetree has numbered it with
a non-zero ID. To do this we increment the cpuid of any CPUs with a smaller
devicetree ID by one to stop them conflicting with the boot CPU.
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Allan Jude [Tue, 31 May 2016 17:30:08 +0000 (17:30 +0000)]
ifconfig(8) now supports some output formatting options
specified by the -f flag or IFCONFIG_FORMAT environment variable, the user
can request that inet4 subnet masks be printed in CIDR or dotted-quad
notation, in addition to the traditional hex output.
inet6 prefixes can be printed in CIDR as well.
For more documentation see the ifconfig(8) man page.
Add support for simplex USB MIDI devices, which only provide BULK or
INTERRUPT endpoints for moving data in one direction, like the KeyRig
49 from M-Audio.
Requested by: Ivan Klymenko <fidaj@ukr.net>
MFC after: 1 week
Ed Schouten [Tue, 31 May 2016 13:32:33 +0000 (13:32 +0000)]
Make CMSG_*() work without having NULL available.
The <sys/socket.h> is not supposed to declare NULL, according to POSIX.
Our implementation complies with that, meaning that we need to make sure
that CMSG_*() doesn't use it.
Ed Schouten [Tue, 31 May 2016 13:31:19 +0000 (13:31 +0000)]
Implement _ALIGN() using internal integer types.
The existing version depends on register_t and uintptr_t, which are only
available when including headers such as <sys/types.h>. As this macro is
used by <sys/socket.h>, for example, it should be written in such a way
that it doesn't depend on those types.
Add "iscsictl -e". Among other things, it makes it possible to perform
discovery without attaching to the targets ("iscsictl -Ad ... -e off"),
and then attach to selected ones ("iscsictl -Mi ... -e on").
PR: 204129
MFC after: 1 month
Relnotes: yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6633
Andrew Turner [Tue, 31 May 2016 09:15:21 +0000 (09:15 +0000)]
Mark the ThunderX and generic PCI drivers as cache-coherent when we know
this to be the case. This will mean we don't try and handle the cache in
bus_dmamap_sync when it is not needed.
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6605
Ed Schouten [Tue, 31 May 2016 08:38:24 +0000 (08:38 +0000)]
Add missing dependency on <machine/_limits.h>.
In r227474, this header file was changed to define SIG_ATOMIC_{MIN,MAX}
in terms of LONG_{MIN,MAX}. Unlike all of the definitions in this header
file, LONG_{MIN,MAX} is provided by <limits.h>. Remove the dependency on
<limits.h> by using __LONG_{MIN,MAX} instead and including
<machine/_limits.h>.
This change is needed to make SIG_ATOMIC_{MIN,MAX} work without
including any other header files.
Ed Schouten [Tue, 31 May 2016 08:36:39 +0000 (08:36 +0000)]
Add missing dependency on <machine/_limits.h>.
This header uses __INT_MIN and __INT_MAX, which is provided by
<machine/_limits.h>. This is needed to make <stdint.h>'s WCHAR_MIN and
WCHAR_MAX work without including other headers as well.
Ed Schouten [Tue, 31 May 2016 08:07:40 +0000 (08:07 +0000)]
Let <sched.h> define struct timespec.
POSIX 2004 doesn't require that this header defines struct timespec, but
does allow it. For FreeBSD, we would at least need a forward declaration
for sched_rr_get_interval().
POSIX 2008 is a bit more demanding, as it now requires that it is
declared. Remove the old forward declaration and include the _timespec.h
header. This should conform to both POSIX 2004 and 2008 now.
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