| Commit message (Collapse) | Author | Age | Files | Lines |
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Basic support for extents was implemented by Zheng Liu as part
of his Google Summer of Code in 2010. This support is read-only
at this time.
In addition to extents we also support the huge_file extension
for read-only purposes. This works nicely with the additional
support for birthtime/nanosec timestamps and dir_index that
have been added lately.
The implementation may not work for all ext4 filesystems as
it doesn't support some features that are being enabled by
default on recent linux like flex_bg. Nevertheless, the feature
should be very useful for migration or simple access in
filesystems that have been converted from ext2/3 or don't use
incompatible features.
Special thanks to Zheng Liu for his dedication and continued
work to support ext2 in FreeBSD.
Submitted by: Zheng Liu (lz@)
Reviewed by: Mike Ma, Christoph Mallon (previous version)
Sponsored by: Google Inc.
MFC after: 3 weeks
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since the current working directory might not be what is expected,
causing svn{,lite}version to fail to find ${0} (itself).
Submitted by: Dan Mack
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/usr/bin/svnversion in the affected section.
Reported by: lev, Dan Mack
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random_adaptor is basically an adapter that plugs in to random(4).
random_adaptor can only be plugged in to random(4) very early in bootup.
Unplugging random_adaptor from random(4) is not supported, and is probably a
bad idea anyway, due to potential loss of entropy pools.
We currently have 3 random_adaptors:
+ yarrow
+ rdrand (ivy.c)
+ nehemeiah
* Remove platform dependent logic from probe.c, and move it into
corresponding registration routines of each random_adaptor provider.
probe.c doesn't do anything other than picking a specific random_adaptor
from a list of registered ones.
* If the kernel doesn't have any random_adaptor adapters present then the
creation of /dev/random is postponed until next random_adaptor is kldload'ed.
* Fix randomdev_soft.c to refer to its own random_adaptor, instead of a
system wide one.
Submitted by: arthurmesh@gmail.com, obrien
Obtained from: Juniper Networks
Reviewed by: so (des)
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(or svnliteversion) in the current lookup path is not what
was used to check out the tree. If an incompatible version
is used, the svn revision number is not reported in uname(1).
Run ${svnversion} on newvers.sh itself when evaluating if the
svn(1) in use is compatible with the tree. Fallback to an
empty ${svnversion} if necessary.
With this change, svnliteversion from base is only used
if no compatible svnversion is found, so with this change,
the version of svn(1) from the ports tree is evaluated first.
Requested by: many
MFC after: 3 days
X-MFC-To: stable/9, releng/9.2 only
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Do this by forcing inclusion of
sys/cddl/compat/opensolaris/sys/debug_compat.h
via -include option into all source files from OpenSolaris.
Note that this -include option must always be after -include opt_global.h.
Additionally, remove forced definition of DEBUG for some modules and fix
their build without DEBUG.
Also, meaning of DEBUG was overloaded to enable WITNESS support for some
OpenSolaris (primarily ZFS) locks. Now this overloading is removed and
that use of DEBUG is replaced with a new option OPENSOLARIS_WITNESS.
MFC after: 17 days
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the tree version, for example if the tree is checked out with an
outdated svn from ports, but the base system svnlite is built.
Approved by: kib (mentor)
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Support chipsets are the Realtek RTL8188SU, RTL8191SU, and RTL8192SU.
Many thanks to Idwer Vollering for porting/writing the man page and for
testing.
Reviewed by: adrian, hselasky
Obtained from: OpenBSD
Tested by: kevlo, Idwer Vollering <vidwer at gmail.com>
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* Make Yarrow an optional kernel component -- enabled by "YARROW_RNG" option.
The files sha2.c, hash.c, randomdev_soft.c and yarrow.c comprise yarrow.
* random(4) device doesn't really depend on rijndael-*. Yarrow, however, does.
* Add random_adaptors.[ch] which is basically a store of random_adaptor's.
random_adaptor is basically an adapter that plugs in to random(4).
random_adaptor can only be plugged in to random(4) very early in bootup.
Unplugging random_adaptor from random(4) is not supported, and is probably a
bad idea anyway, due to potential loss of entropy pools.
We currently have 3 random_adaptors:
+ yarrow
+ rdrand (ivy.c)
+ nehemeiah
* Remove platform dependent logic from probe.c, and move it into
corresponding registration routines of each random_adaptor provider.
probe.c doesn't do anything other than picking a specific random_adaptor
from a list of registered ones.
* If the kernel doesn't have any random_adaptor adapters present then the
creation of /dev/random is postponed until next random_adaptor is kldload'ed.
* Fix randomdev_soft.c to refer to its own random_adaptor, instead of a
system wide one.
Submitted by: arthurmesh@gmail.com, obrien
Obtained from: Juniper Networks
Reviewed by: obrien
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The original API calls for pow2ns, however the new APIs from
Linux call for seconds.
We need to be able to convert to/from 2^Nns to seconds in both
userland and kernel to fix this and properly compare units.
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all T4 and T5 based cards and is useful for analyzing TSO, LRO, TOE, and
for general purpose monitoring without tapping any cxgbe or cxl ifnet
directly.
Tracers on the T4/T5 chips provide access to Ethernet frames exactly as
they were received from or transmitted on the wire. On transmit, a
tracer will capture a frame after TSO segmentation, hw VLAN tag
insertion, hw L3 & L4 checksum insertion, etc. It will also capture
frames generated by the TCP offload engine (TOE traffic is normally
invisible to the kernel). On receive, a tracer will capture a frame
before hw VLAN extraction, runt filtering, other badness filtering,
before the steering/drop/L2-rewrite filters or the TOE have had a go at
it, and of course before sw LRO in the driver.
There are 4 tracers on a chip. A tracer can trace only in one direction
(tx or rx). For now cxgbetool will set up tracers to capture the first
128B of every transmitted or received frame on a given port. This is a
small subset of what the hardware can do. A pseudo ifnet with the same
name as the nexus driver (t4nex0 or t5nex0) will be created for tracing.
The data delivered to this ifnet is an additional copy made inside the
chip. Normal delivery to cxgbe<n> or cxl<n> will be made as usual.
/* watch cxl0, which is the first port hanging off t5nex0. */
# cxgbetool t5nex0 tracer 0 tx0 (watch what cxl0 is transmitting)
# cxgbetool t5nex0 tracer 1 rx0 (watch what cxl0 is receiving)
# cxgbetool t5nex0 tracer list
# tcpdump -i t5nex0 <== all that cxl0 sees and puts on the wire
If you were doing TSO, a tcpdump on cxl0 may have shown you ~64K
"frames" with no L3/L4 checksum but this will show you the frames that
were actually transmitted.
/* all done */
# cxgbetool t5nex0 tracer 0 disable
# cxgbetool t5nex0 tracer 1 disable
# cxgbetool t5nex0 tracer list
# ifconfig t5nex0 destroy
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This time it is for a git mirror that stores svn revisions as
git notes, e.g. https://github.com/freebsd/freebsd
MFC after: 10 days
Sponsored by: HybridCluster
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MFC after: 5 days
Sponsored by: HybridCluster
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Tested on: RB450G (standalone ar8316), RSPRO (standalone ar8316) and
TPLink MR-3220 (ar724x integrated switch).
Approved by: adrian (mentor)
Obtained from: zrouter
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As part of this commit, add an nvme_strvis() function which borrows
heavily from cam_strvis(). This will allow stripping of
leading/trailing whitespace and also handle unprintable characters
in model/serial numbers. This function goes into a new nvme_util.c
file which is used by both the driver and nvmecontrol.
Sponsored by: Intel
Reviewed by: carl
MFC after: 3 days
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make the ARM EABI the default ABI on arm, armeb, armv6 and armv6eb.
This is intended to be the default ABI from now on with the old ABI to be
retired. Because of this all users are strongly suggested to upgrade to the
ARM EABI.
As the two ABIs are incompatible it is unlikely upgrading in place will
work. Users should perform a full backup and either use an external machine
to upgrade, or install to an alternative location on their media. They
should also reinstall all ports or packages when these are available.
The only known issues are:
- pkg incorrectly detects the ABI. This is fixed upstream, and will a
patch will be made to the port.
- GDB can have issues with executables built with clang.
__FreeBSD_version has been bumped.
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information into the ISN (initial sequence number) without the additional
use of timestamp bits and switching to the very fast and cryptographically
strong SipHash-2-4 MAC hash algorithm to protect the SYN cookie against
forgeries.
The purpose of SYN cookies is to encode all necessary session state in
the 32 bits of our initial sequence number to avoid storing any information
locally in memory. This is especially important when under heavy spoofed
SYN attacks where we would either run out of memory or the syncache would
fill with bogus connection attempts swamping out legitimate connections.
The original SYN cookies method only stored an indexed MSS values in the
cookie. This isn't sufficient anymore and breaks down in the presence of
WSCALE information which is only exchanged during SYN and SYN-ACK. If we
can't keep track of it then we may severely underestimate the available
send or receive window. This is compounded with large windows whose size
information on the TCP segment header is even lower numerically. A number
of years back SYN cookies were extended to store the additional state in
the TCP timestamp fields, if available on a connection. While timestamps
are common among the BSD, Linux and other *nix systems Windows never enabled
them by default and thus are not present for the vast majority of clients
seen on the Internet.
The common parameters used on TCP sessions have changed quite a bit since
SYN cookies very invented some 17 years ago. Today we have a lot more
bandwidth available making the use window scaling almost mandatory. Also
SACK has become standard making recovering from packet loss much more
efficient.
This change moves all necessary information into the ISS removing the need
for timestamps. Both the MSS (16 bits) and send WSCALE (4 bits) are stored
in 3 bit indexed form together with a single bit for SACK. While this is
significantly less than the original range, it is sufficient to encode all
common values with minimal rounding.
The MSS depends on the MTU of the path and with the dominance of ethernet
the main value seen is around 1460 bytes. Encapsulations for DSL lines
and some other overheads reduce it by a few more bytes for many connections
seen. Rounding down to the next lower value in some cases isn't a problem
as we send only slightly more packets for the same amount of data.
The send WSCALE index is bit more tricky as rounding down under-estimates
the available send space available towards the remote host, however a small
number values dominate and are carefully selected again.
The receive WSCALE isn't encoded at all but recalculated based on the local
receive socket buffer size when a valid SYN cookie returns. A listen socket
buffer size is unlikely to change while active.
The index values for MSS and WSCALE are selected for minimal rounding errors
based on large traffic surveys. These values have to be periodically
validated against newer traffic surveys adjusting the arrays tcp_sc_msstab[]
and tcp_sc_wstab[] if necessary.
In addition the hash MAC to protect the SYN cookies is changed from MD5
to SipHash-2-4, a much faster and cryptographically secure algorithm.
Reviewed by: dwmalone
Tested by: Fabian Keil <fk@fabiankeil.de>
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Reviewed by: rpaulo
Approved by: sbruno (mentor)
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... in kernel builds. This is to make behavior of clang consistent with
behavior of gcc.
MFC after: 2 weeks
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These should've been added along with r252890
Reported by: gonzo
PointyHat: pfg
MFC after: 1 week
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This driver works for FreeBSD/i386 and FreeBSD/amd64 platforms.
Many thanks to HighPoint for providing this driver.
MFC after: 1 day
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- Update the T4 firmware to the latest.
- Minor reorganization and updates to the version macros, etc.
Obtained from: Chelsio
MFC after: 1 day
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system has svnliteversion.
- If svnliteversion is not found, look for svnversion in /usr/bin
and /usr/local/bin, since svnlite can be installed as svn if
WITH_SVN is set.[1]
- Remove /bin from binary search paths.[1]
Discussed with: kib [1]
MFC after: 3 days
Approved by: kib (mentor)
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- Reconnect with some minor modifications, in particular now selsocket()
internals are adapted to use sbintime units after recent'ish calloutng
switch.
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originally inspired by the Solaris vmem detailed in the proceedings
of usenix 2001. The NetBSD version was heavily refactored for bugs
and simplicity.
- Use this resource allocator to allocate the buffer and transient maps.
Buffer cache defrags are reduced by 25% when used by filesystems with
mixed block sizes. Ultimately this may permit dynamic buffer cache
sizing on low KVA machines.
Discussed with: alc, kib, attilio
Tested by: pho
Sponsored by: EMC / Isilon Storage Division
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Driver version (v2.0.0)
Submitted by: David C Somayajulu (davidcs@freebsd.org) QLogic Corporation
Approved by: George Neville-Neil (gnn@freebsd.org)
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same as top-level target name for "device runfw" kernel option and
caused cyclic dependancy that lead to kernel build breakage
Module change is not strictly required and done for name unification sake
PR: conf/175751
Submitted by: Issei <i10a at herbmint.jp>
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the slot
(which should be a PCIE Gen 3 slot for this adapter) by looking back thru the PCI
parent devices to the slot device.
The fix above also corrects the bandwidth display to GT/s rather than the
incorrect Gb/s
Next, allow the use of ALTQ if you select the compile option IXGBE_LEGACY_TX.
Allow the use of 'unsupported' optic modules by a compile option as well.
Add a phy reset capability into the stop code, this is so a static configured
driver will still behave properly when taken down (not being able to unload it).
This revision synchronizes the shared code with Intel internal current code,
and note that it now includes DCB supporting code, this was necessitated by
some internal changes with the code, but it also will provide the opportunity
to develop this feature in the core driver down the road.
I have edited the README to get rid of some of the worse anachronisms in it
as well, its by no means as robust as I might wish at this point however.
Oh, I also have included some conditional stuff in the code so it will be
compatible in both the 9.X and 10 environments.
Performance has been a focus in recent changes and I believe this revision
driver will perform very well in most workloads.
MFC after: 2 weeks
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Missed adding the new references to cam_compat.c to the various makefiles.
Obtained from: Netflix
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Basically the situation is as follows:
- When using Clang + armv6, we should not need any intrinsics. It should
support it, even though due to a target misconfiguration it does not.
We should fix this in Clang.
- When using Clang + noarmv6, provide __atomic_* functions that disable
interrupts.
- When using GCC + armv6, we can provide __sync_* intrinsics, similar to
what we did for MIPS. As ARM and MIPS are quite similar, simply base
this implementation on the one I did for MIPS.
- When using GCC + noarmv6, disable the interrupts, like we do for
Clang.
This implementation still lacks functions for noarmv6 userspace. To be
done.
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The AR9485 chip and AR933x SoC both implement LNA diversity.
There are a few extra things that need to happen before this can be
flipped on for those chips (mostly to do with setting up the different
bias values and LNA1/LNA2 RSSI differences) but the first stage is
putting this code into the driver layer so it can be reused.
This has the added benefit of making it easier to expose configuration
options and diagnostic information via the ioctl API. That's not yet
being done but it sure would be nice to do so.
Tested:
* AR9285, with LNA diversity enabled
* AR9285, with LNA diversity disabled in EEPROM
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Realtek RTL8188CU/RTL8192CU USB IEEE 802.11b/g/n wireless cards.
This driver requires microcode which is available in FreeBSD ports:
net/urtwn-firmware-kmod.
Hiren ported the urtwn(4) man page from OpenBSD and Glen just commited a port
for the firmware.
TODO:
- 802.11n support
- Stability fixes - the driver can sustain lots of traffic but has trouble
coping with simultaneous iperf sessions.
- fix debugging
MFC after: 2 months
Tested by: kevlo, hiren, gjb
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To make <stdatomic.h> work on MIPS (and ARM) using GCC, we need to
provide implementations of the __sync_*() functions. I already added
these functions for 4 and 8 byte types to libcompiler-rt some time ago,
based on top of <machine/atomic.h>.
Unfortunately, <machine/atomic.h> only provides a subset of the features
needed to implement <stdatomic.h>. This means that in some cases we had
to do compare-and-exchange calls in loops, where a simple ll/sc would
suffice.
Also implement these functions for 1 and 2 byte types. MIPS only
provides ll/sc instructions for 4 and 8 byte types, but this is of
course no limitation. We can simply load 4 bytes and use some bitmask
tricks to modify only the bytes affected.
Discussed on: mips, arch
Tested with: QEMU
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for the WB195 combo NIC - an AR9285 w/ an AR3011 USB bluetooth NIC.
The AR3011 is wired up using a 3-wire coexistence scheme to the AR9285.
The code in if_ath_btcoex.c sets up the initial hardware mapping
and coexistence configuration. There's nothing special about it -
it's static; it doesn't try to configure bluetooth / MAC traffic priorities
or try to figure out what's actually going on. It's enough to stop basic
bluetooth traffic from causing traffic stalls and diassociation from
the wireless network.
To use this code, you must have the above NIC. No, it won't work
for the AR9287+AR3012, nor the AR9485, AR9462 or AR955x combo cards.
Then you set a kernel hint before boot or before kldload, where 'X'
is the unit number of your AR9285 NIC:
# kenv hint.ath.X.btcoex_profile=wb195
This will then appear in your boot messages:
[100482] athX: Enabling WB195 BTCOEX
This code is going to evolve pretty quickly (well, depending upon my
spare time) so don't assume the btcoex API is going to stay stable.
In order to use the bluetooth side, you must also load in firmware using
ath3kfw and the binary firmware file (ath3k-1.fw in my case.)
Tested:
* AR9280, no interference
* WB195 - AR9285 + AR3011 combo; STA mode; basic bluetooth inquiries
were enough to cause traffic stalls and disassociations. This has
stopped with the btcoex profile code.
TODO:
* Importantly - the AR9285 needs ASPM disabled if bluetooth coexistence
is enabled. No, I don't know why. It's likely some kind of bug to do
with the AR3011 sending bluetooth coexistence signals whilst the device
is asleep. Since we don't actually sleep the MAC just yet, it shouldn't
be a problem. That said, to be totally correct:
+ ASPM should be disabled - upon attach and wakeup
+ The PCIe powersave HAL code should never be called
Look at what the ath9k driver does for inspiration.
* Add WB197 (AR9287+AR3012) support
* Add support for the AR9485, which is another combo like the AR9285
* The later NICs have a different signaling mechanism between the MAC
and the bluetooth device; I haven't even begun to experiment with
making that HAL code work. But it should be a lot more automatic.
* The hardware can do much more interesting traffic weighting with
bluetooth and wifi traffic. None of this is currently used.
Ideally someone would code up something to watch the bluetooth traffic
GPIO (via an interrupt) and then watch it go high/low; then figure out
what the bluetooth traffic is and adjust things appropriately.
* If I get the time I may add in some code to at least track this stuff
and expose statistics. But it's up to someone else to experiment with
the bluetooth coexistence support and add the interesting stuff (like
"real" detection of bulk, audio, etc bluetooth traffic patterns and
change wifi parameters appropriately - eg, maximum aggregate length,
transmit power, using quiet time to control TX duty cycle, etc.)
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Series 6, 7, 8 and upcoming products. Older Adaptec RAID controller families are supported by the 'aac' driver.
Approved by: scottl (mentor)
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1. Common headers for fdt.h and ofw_machdep.h under x86/include
with indirections under i386/include and amd64/include.
2. New modinfo for loader provided FDT blob.
3. Common x86_init_fdt() called from hammer_time() on amd64 and
init386() on i386.
4. Split-off FDT specific low-level console functions from FDT
bus methods for the uart(4) driver. The low-level console
logic has been moved to uart_cpu_fdt.c and is used for arm,
mips & powerpc only. The FDT bus methods are shared across
all architectures.
5. Add dev/fdt/fdt_x86.c to hold the fdt_fixup_table[] and the
fdt_pic_table[] arrays. Both are empty right now.
FDT addresses are I/O ports on x86. Since the core FDT code does
not handle different address spaces, adding support for both I/O
ports and memory addresses requires some thought and discussion.
It may be better to use a compile-time option that controls this.
Obtained from: Juniper Networks, Inc.
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Submitted by: dim
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4 flag bits. This was supposed to happen in 8.0, and again in 2012..
MFC after: never
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QLogic 8300 Series Adapters
Submitted by: David C Somayajulu (davidcs@freebsd.org) QLogic Corporation
Approved by: George Neville-Neil (gnn@freebsd.org)
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checking our kernel printf extensions. This is useful to allow
compilers without these extensions to build kernels.
Sponsored by: DARPA, AFRL
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PV entries are now roughly half the size.
Instead of using a shared UMA zone for 28 byte pv entries
(two 8-byte tailq nodes, a 4 byte pointer, a 4 byte address and 4 byte
flags), we allocate a page at a time per process.
This provides 252 pv entries per process (actually, per pmap address space)
and eliminates one of the 8-byte tailq entries since we now can track
per-process pv entries implicitly.
The pointer to the pmap can be eliminated by doing address arithmetic to
find the metadata on the page headers to find a single pointer shared by
all 252 entries. There is an 8-int bitmap for the freelist of those 252
entries.
When in serious low memory condition, allocation of another pv_chunk is
possible by freeing some pages in pmap_pv_reclaim().
Added pv_entry/pv_chunk related statistics to pmap.
pv_entry/pv_chunk statistics can be accessed via sysctl vm.pmap.
Ported PTE freelist of KVA allocation and maintenance from i386.
Using an idea from Stephan Uphoff, use the empty pte's that correspond
to the unused kva in the pv memory block to thread a freelist through.
This allows us to free pages that used to be used for pv entry chunks
since we can now track holes in the kva memory block.
As both ARM pmap.c and pmap-v6.c use the same header and pv_entry, pmap and
md_page structures are different, it was needed to separate code designed
for ARMv6/7 from the one for other ARMs.
Submitted by: Zbigniew Bodek <zbb@semihalf.com>
Reviewed by: alc
Sponsored by: The FreeBSD Foundation, Semihalf
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with any structure containing a uint64_t index. The tree code
auto-generates type safe wrappers.
- Eliminate the buf splay and replace it with pctrie. This is not only
significantly faster with large files but also allows for the possibility
of shared locking.
Reviewed by: alc, attilio
Sponsored by: EMC / Isilon Storage Division
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locks. To support this, VNODE locks are created with the LK_IS_VNODE
flag. This flag is propagated down using the LO_IS_VNODE flag.
Note that WITNESS still records the LOR. Only the printing and the
optional entering into the kernel debugger is bypassed with the
WITNESS_NO_VNODE option.
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