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Pull more documentation updates from Jonathan Corbet:
"A handful of late-arriving documentation fixes, plus one Spanish
translation that has been ready for some time but got applied late"
* tag 'docs-6.4-2' of git://git.lwn.net/linux:
docs/sp_SP: Add translation of process/adding-syscalls
CREDITS: Update email address for Mat Martineau
Documentation: update kernel stack for x86_64
docs: Remove unnecessary unicode character
docs: fix "Reviewd" typo
Documentation: timers: hrtimers: Make hybrid union historical
docs/admin-guide/mm/ksm.rst fix intraface -> interface typo
doc:it_IT: fix some typos
Pull more tracing updates from Steven Rostedt:
- Make buffer_percent read/write.
The buffer_percent file is how users can state how long to block on
the tracing buffer depending on how much is in the buffer. When it
hits the "buffer_percent" it will wake the task waiting on the
buffer. For some reason it was set to read-only.
This was not noticed because testing was done as root without
SELinux, but with SELinux it will prevent even root to write to it
without having CAP_DAC_OVERRIDE.
- The "touched_functions" was added this merge window, but one of the
reasons for adding it was not implemented.
That was to show what functions were not only touched, but had either
a direct trampoline attached to it, or a kprobe or live kernel
patching that can "hijack" the function to run a different function.
The point is to know if there's functions in the kernel that may not
be behaving as the kernel code shows. This can be used for debugging.
TODO: Add this information to kernel oops too.
* tag 'trace-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ftrace: Add MODIFIED flag to show if IPMODIFY or direct was attached
tracing: Fix permissions for the buffer_percent file
Pull locking updates from Ingo Molnar:
- Introduce local{,64}_try_cmpxchg() - a slightly more optimal
primitive, which will be used in perf events ring-buffer code
- Simplify/modify rwsems on PREEMPT_RT, to address writer starvation
- Misc cleanups/fixes
* tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/atomic: Correct (cmp)xchg() instrumentation
locking/x86: Define arch_try_cmpxchg_local()
locking/arch: Wire up local_try_cmpxchg()
locking/generic: Wire up local{,64}_try_cmpxchg()
locking/atomic: Add generic try_cmpxchg{,64}_local() support
locking/rwbase: Mitigate indefinite writer starvation
locking/arch: Rename all internal __xchg() names to __arch_xchg()
Merge my x86 uaccess updates branch.
The LAM ("Linear Address Masking") updates in this release made me
unhappy about how "access_ok()" was done, and it actually turned out to
have a couple of small bugs in it too. This is my cleanup of the code:
- use the sign bit of the __user pointer rather than masking the
address and checking it against the TASK_SIZE range.
We already did this part for the get/put_user() side, but
'access_ok()' did the naïve "mask and range check" thing, which not
only generates nasty code, but also ended up meaning that __access_ok
itself didn't do a good job, and so copy_from_user_nmi() didn't get
the check right.
- move all the code that is 64-bit only into the 64-bit version of the
header file, so that we don't unnecessarily pollute the shared x86
code and make it look like LAM might work in 32-bit too.
- fix a bug in the address masking (that doesn't end up mattering: in
this case the fix was to just remove the buggy code entirely).
- a couple of trivial cleanups and added commentary about the
access_ok() rules.
* x86-uaccess-cleanup:
x86-64: mm: clarify the 'positive addresses' user address rules
x86: mm: remove 'sign' games from LAM untagged_addr*() macros
x86: uaccess: move 32-bit and 64-bit parts into proper <asm/uaccess_N.h> header
x86: mm: remove architecture-specific 'access_ok()' define
x86-64: make access_ok() independent of LAM
Pull more RISC-V updates from Palmer Dabbelt:
- Support for hibernation
- The .rela.dyn section has been moved to the init area
- A fix for the SBI probing to allow for implementation-defined
behavior
- Various other fixes and cleanups throughout the tree
* tag 'riscv-for-linus-6.4-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: include cpufeature.h in cpufeature.c
riscv: Move .rela.dyn to the init sections
dt-bindings: riscv: explicitly mention assumption of Zicsr & Zifencei support
riscv: compat_syscall_table: Fixup compile warning
RISC-V: fixup in-flight collision with ARCH_WANT_OPTIMIZE_VMEMMAP rename
RISC-V: fix sifive and thead section mismatches in errata
RISC-V: Align SBI probe implementation with spec
riscv: mm: remove redundant parameter of create_fdt_early_page_table
riscv: Adjust dependencies of HAVE_DYNAMIC_FTRACE selection
RISC-V: Add arch functions to support hibernation/suspend-to-disk
RISC-V: mm: Enable huge page support to kernel_page_present() function
RISC-V: Factor out common code of __cpu_resume_enter()
RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function
Pull more kvm updates from Paolo Bonzini:
"This includes the 6.4 changes for RISC-V, and a few bugfix patches for
other architectures. For x86, this closes a longstanding performance
issue in the newer and (usually) more scalable page table management
code.
RISC-V:
- ONE_REG interface to enable/disable SBI extensions
- Zbb extension for Guest/VM
- AIA CSR virtualization
x86:
- Fix a long-standing TDP MMU flaw, where unloading roots on a vCPU
can result in the root being freed even though the root is
completely valid and can be reused as-is (with a TLB flush).
s390:
- A couple of bugfixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: fix race in gmap_make_secure()
KVM: s390: pv: fix asynchronous teardown for small VMs
KVM: x86: Preserve TDP MMU roots until they are explicitly invalidated
RISC-V: KVM: Virtualize per-HART AIA CSRs
RISC-V: KVM: Use bitmap for irqs_pending and irqs_pending_mask
RISC-V: KVM: Add ONE_REG interface for AIA CSRs
RISC-V: KVM: Implement subtype for CSR ONE_REG interface
RISC-V: KVM: Initial skeletal support for AIA
RISC-V: KVM: Drop the _MASK suffix from hgatp.VMID mask defines
RISC-V: Detect AIA CSRs from ISA string
RISC-V: Add AIA related CSR defines
RISC-V: KVM: Allow Zbb extension for Guest/VM
RISC-V: KVM: Add ONE_REG interface to enable/disable SBI extensions
RISC-V: KVM: Alphabetize selects
KVM: RISC-V: Retry fault if vma_lookup() results become invalid
Pull ACPI fix from Rafael Wysocki:
"Remove an ACPI backlight quirk for Lenovo ThinkPad W530, added during
the 6.3 cycle, that turned out to do more harm than help (Hans de
Goede)"
* tag 'acpi-6.4-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: video: Remove acpi_backlight=video quirk for Lenovo ThinkPad W530
Pull thermal control fixes from Rafael Wysocki:
"These fix a NULL pointer dereference in the Intel powerclamp driver
introduced during the 6.3 cycle and update MAINTAINERS to match recent
code changes.
Specifics:
- Fix NULL pointer access in the Intel powerclamp thermal driver that
occurs on attempts to set the cooling device state to 0 in the
default configuration (Srinivas Pandruvada)
- Drop the stale MAINTAINERS entry for the Intel Menlow thermal
driver that has been removed recently (Lukas Bulwahn)"
* tag 'thermal-6.4-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
MAINTAINERS: remove section INTEL MENLOW THERMAL DRIVER
thermal: intel: powerclamp: Fix NULL pointer access issue
Pull phy fixes from Vinod Koul:
- Fix for mediatek driver warning for variable used uninitialized and
for wrong pll math
* tag 'phy-fixes-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: mediatek: hdmi: mt8195: fix wrong pll calculus
phy: mediatek: hdmi: mt8195: fix uninitialized variable usage in pll_calc
Pull more drm fixes from Dave Airlie:
"This is the fixes for the last couple of weeks for i915 and last 3
weeks for amdgpu, lots of them but pretty scattered around and all
pretty small.
amdgpu:
- SR-IOV fixes
- DCN 3.2 fixes
- DC mclk handling fixes
- eDP fixes
- SubVP fixes
- HDCP regression fix
- DSC fixes
- DC FP fixes
- DCN 3.x fixes
- Display flickering fix when switching between vram and gtt
- Z8 power saving fix
- Fix hang when skipping modeset
- GPU reset fixes
- Doorbell fix when resizing BARs
- Fix spurious warnings in gmc
- Locking fix for AMDGPU_SCHED IOCTL
- SR-IOV fix
- DCN 3.1.4 fix
- DCN 3.2 fix
- Fix job cleanup when CS is aborted
i915:
- skl pipe source size check
- mtl transcoder mask fix
- DSI power on sequence fix
- GuC versioning corner case fix"
* tag 'drm-next-2023-05-05' of git://anongit.freedesktop.org/drm/drm: (48 commits)
drm/amdgpu: drop redundant sched job cleanup when cs is aborted
drm/amd/display: filter out invalid bits in pipe_fuses
drm/amd/display: Change default Z8 watermark values
drm/amdgpu: disable SDMA WPTR_POLL_ENABLE for SR-IOV
drm/amdgpu: add a missing lock for AMDGPU_SCHED
drm/amdgpu: fix an amdgpu_irq_put() issue in gmc_v9_0_hw_fini()
drm/amdgpu: fix amdgpu_irq_put call trace in gmc_v10_0_hw_fini
drm/amdgpu: fix amdgpu_irq_put call trace in gmc_v11_0_hw_fini
drm/amdgpu: Enable doorbell selfring after resize FB BAR
drm/amdgpu: Use the default reset when loading or reloading the driver
drm/amdgpu: Fix mode2 reset for sienna cichlid
drm/i915/dsi: Use unconditional msleep() instead of intel_dsi_msleep()
drm/i915/mtl: Add the missing CPU transcoder mask in intel_device_info
drm/i915/guc: Actually return an error if GuC version range check fails
drm/amd/display: Lowering min Z8 residency time
drm/amd/display: fix flickering caused by S/G mode
drm/amd/display: Set min_width and min_height capability for DCN30
drm/amd/display: Isolate remaining FPU code in DCN32
drm/amd/display: Update bounding box values for DCN321
drm/amd/display: Do not clear GPINT register when releasing DMUB from reset
...
Commit 9a826ddba6 ("[ALSA] pcm core: fix silence_start calculations")
came with exactly the right commit message, but the patch just made
things broken in a different way: We'd fill at a too low address if the
area was already partially zeroed, so we'd under-fill. This affected
both thresholded mode (where it was somewhat less likely) and top-up
mode (where it would be the case consistently).
Co-developed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230505155244.2312199-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The snd_pcm_playback_hw_avail() function uses runtime->status->hw_ptr.
Unfortunately, in case when we call this function from snd_pcm_update_hw_ptr0(),
this variable contains the previous hardware pointer. Use the new_hw_ptr
argument to calculate hw_avail (filled samples by the user space) to
correct the threshold comparison.
The new_hw_ptr argument may also be set to ULONG_MAX which means the
initialization phase. In this case, use runtime->status->hw_ptr.
Suggested-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230505155244.2312199-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ASoC: Fixes for v6.4
A small set of fixes and device quirks that have come in during the
merge window, the Qualcomm fix seems quite large but it's mainly code
motion so looks larger than it is.
If a function had ever had IPMODIFY or DIRECT attached to it, where this
is how live kernel patching and BPF overrides work, mark them and display
an "M" in the enabled_functions and touched_functions files. This can be
used for debugging. If a function had been modified and later there's a bug
in the code related to that function, this can be used to know if the cause
is possibly from a live kernel patch or a BPF program that changed the
behavior of the code.
Also update the documentation on the enabled_functions and
touched_functions output, as it was missing direct callers and CALL_OPS.
And include this new modify attribute.
Link: https://lore.kernel.org/linux-trace-kernel/20230502213233.004e3ae4@gandalf.local.home
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Commit 2b6a7409ac ("thermal: intel: menlow: Get rid of this driver")
removes the driver drivers/thermal/intel/intel_menlow.c, but misses to
remove its reference in MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.
Remove the INTEL MENLOW THERMAL DRIVER section in MAINTAINERS.
Fixes: 2b6a7409ac ("thermal: intel: menlow: Get rid of this driver")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Fix a long-standing flaw in x86's TDP MMU where unloading roots on a vCPU can
result in the root being freed even though the root is completely valid and
can be reused as-is (with a TLB flush).
The call to phy_stop() races with the later call to phy_disconnect(),
resulting in concurrent phy_suspend() calls being run from different
CPUs. The final call to phy_disconnect() ensures that the PHY is
stopped and suspended, too.
Fixes: c96e731c93 ("net: bcmgenet: connect and disconnect from the PHY state machine")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Buslov says:
====================
Fixes for miss to tc action series
Changes V1 -> V2:
- Added new patch reverting Ivan's fix for the same issue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When replacing a filter (i.e. 'fold' pointer is not NULL) the insertion of
new filter to idr is postponed until later in code since handle is already
provided by the user. However, the error handling code in fl_change()
always assumes that the new filter had been inserted into idr. If error
handler is reached when replacing existing filter it may remove it from idr
therefore making it unreachable for delete or dump afterwards. Fix the
issue by verifying that 'fold' argument wasn't provided by caller before
calling idr_remove().
Fixes: 08a0063df3 ("net/sched: flower: Move filter handle initialization earlier")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the current xdp_xmit implementation, if any single frame fails to
transmit due to insufficient buffer descriptors, the function nevertheless
reports success in sending all frames. This results in erroneously
indicating that frames were transmitted when in fact they were dropped.
This patch fixes the issue by ensureing the return value properly
indicates the actual number of frames successfully transmitted, rather than
potentially reporting success for all frames when some could not transmit.
Fixes: 6d6b39f180 ("net: fec: add initial XDP support")
Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Introduce xdp_features support for bonding driver according to the slave
devices attached to the master one. xdp_features is required whenever we
want to xdp_redirect traffic into a bond device and then into selected
slaves attached to it.
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Fixes: 66c0e13ad2 ("drivers: net: turn on XDP features")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Jussi Maki <joamaki@gmail.com>
Tested-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should check whether the current SFI (Stream Filter Instance) table
is full before creating a new SFI entry. However, the previous logic
checks the handle by mistake and might lead to unpredictable behavior.
Fixes: 888ae5a395 ("net: enetc: add tc flower psfp offload driver")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We used to have a mailing list in the MAINTAINERS file, but removed this
when we became part of Xilinx as it stopped working.
Now inside AMD we have the list again. Add it back so patches will be seen
by all sfc developers.
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For multi-queue and large ring-size use case, the following error
occurred when free_unused_bufs:
rcu: INFO: rcu_sched self-detected stall on CPU.
Fixes: 986a4f4d45 ("virtio_net: multiqueue support")
Signed-off-by: Wenliang Wang <wangwenliang.1995@bytedance.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On mt753x_cpu_port_enable() there's code that enables flooding for the CPU
port only. Since mt753x_cpu_port_enable() runs twice when both CPU ports
are enabled, port 6 becomes the only port to forward the frames to. But
port 5 is the active port, so no frames received from the user ports will
be forwarded to port 5 which breaks network connectivity.
Every bit of the BC_FFP, UNM_FFP, and UNU_FFP bits represents a port. Fix
this issue by setting the bit that corresponds to the CPU port without
overwriting the other bits.
Clear the bits beforehand only for the MT7531 switch. According to the
documents MT7621 Giga Switch Programming Guide v0.3 and MT7531 Reference
Manual for Development Board v1.0, after reset, the BC_FFP, UNM_FFP, and
UNU_FFP bits are set to 1 for MT7531, 0 for MT7530.
The commit 5e5502e012 ("net: dsa: mt7530: fix roaming from DSA user
ports") silently changed the method to set the bits on the MT7530_MFC.
Instead of clearing the relevant bits before mt7530_cpu_port_enable()
which runs under a for loop, the commit started doing it on
mt7530_cpu_port_enable().
Back then, this didn't really matter as only a single CPU port could be
used since the CPU port number was hardcoded. The driver was later changed
with commit 1f9a6abecf ("net: dsa: mt7530: get cpu-port via dp->cpu_dp
instead of constant") to retrieve the CPU port via dp->cpu_dp. With that,
this silent change became an issue for when using multiple CPU ports.
Fixes: 5e5502e012 ("net: dsa: mt7530: fix roaming from DSA user ports")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The multi-chip module MT7530 switch with a 40 MHz oscillator on the
MT7621AT, MT7621DAT, and MT7621ST SoCs forwards corrupt frames using
trgmii.
This is caused by the assumption that MT7621 SoCs have got 150 MHz PLL,
hence using the ncpo1 value, 0x0780.
My testing shows this value works on Unielec U7621-06, Bartel's testing
shows it won't work on Hi-Link HLK-MT7621A and Netgear WAC104. All devices
tested have got 40 MHz oscillators.
Using the value for 125 MHz PLL, 0x0640, works on all boards at hand. The
definitions for 125 MHz PLL exist on the Banana Pi BPI-R2 BSP source code
whilst 150 MHz PLL don't.
Forwarding frames using trgmii on the MCM MT7530 switch with a 25 MHz
oscillator on the said MT7621 SoCs works fine because the ncpo1 value
defined for it is for 125 MHz PLL.
Change the 150 MHz PLL comment to 125 MHz PLL, and use the 125 MHz PLL
ncpo1 values for both oscillator frequencies.
Link: 81d24bbce7/u-boot-mt/drivers/net/rt2880_eth.c (L2195)
Fixes: 7ef6f6f8d2 ("net: dsa: mt7530: Add MT7621 TRGMII mode support")
Tested-by: Bartel Eerdekens <bartel.eerdekens@constell8.be>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Seemingly I mis-implemented the dependencies here. The OpenSBI docs only
point out that the "riscv,event-to-mhpmcounters property is mandatory if
riscv,event-to-mhpmevent is present". It never claims that
riscv,event-to-mhpmcounters requires riscv,event-to-mhpmevent.
Drop the dependency of riscv,event-to-mhpmcounters on
riscv,event-to-mhpmevent.
Fixes: 7e38085d9c ("dt-bindings: riscv: add SBI PMU event mappings")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20230404-tractor-confusing-8852e552539a@spud
Signed-off-by: Rob Herring <robh@kernel.org>
When matching DFS connections, we can't rely on the values set in
cifs_sb_info::prepath and cifs_tcon::tree_name as they might change
during DFS failover. The DFS referrals related to a specific DFS tcon
are already matched earlier in match_server(), therefore we can safely
skip those checks altogether as the connection is guaranteed to be
unique for the DFS tcon.
Besides, when creating or finding an SMB session, make sure to also
refcount any DFS root session related to it (cifs_ses::dfs_root_ses),
so if a new DFS mount ends up reusing the connection from the old
mount while there was an umount(2) still in progress (e.g. umount(2)
-> cifs_umount() -> reconnect -> cifs_put_tcon()), the connection
could potentially be put right after the umount(2) finished.
Patch has minor update to include fix for unused variable issue
noted by the kernel test robot
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202305041040.j7W2xQSy-lkp@intel.com/
Cc: stable@vger.kernel.org # v6.2+
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Pull ceph updates from Ilya Dryomov:
"A few filesystem improvements, with a rather nasty use-after-free fix
from Xiubo intended for stable"
* tag 'ceph-for-6.4-rc1' of https://github.com/ceph/ceph-client:
ceph: reorder fields in 'struct ceph_snapid_map'
ceph: pass ino# instead of old_dentry if it's disconnected
ceph: fix potential use-after-free bug when trimming caps
ceph: implement writeback livelock avoidance using page tagging
ceph: do not print the whole xattr value if it's too long
Pull 9p updates from Eric Van Hensbergen:
"This includes a number of patches that didn't quite make the cut last
merge window while we addressed some outstanding issues and review
comments. It includes some new caching modes for those that only want
readahead caches and reworks how we do writeback caching so we are not
keeping extra references around which both causes performance problems
and uses lots of additional resources on the server.
It also includes a new flag to force disabling of xattrs which can
also cause major performance issues, particularly if the underlying
filesystem on the server doesn't support them.
Finally it adds a couple of additional mount options to better support
directio and enabling caches when the server doesn't support
qid.version.
There was one late-breaking bug report that has also been included as
its own patch where I forgot to propagate an embarassing bit-logic fix
to the various variations of open"
* tag '9p-6.4-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
fs/9p: Fix bit operation logic error
fs/9p: Rework cache modes and add new options to Documentation
fs/9p: remove writeback fid and fix per-file modes
fs/9p: Add new mount modes
9p: Add additional debug flags and open modes
fs/9p: allow disable of xattr support on mount
fs/9p: Remove unnecessary superblock flags
fs/9p: Consolidate file operations and add readahead and writeback
9pfs can run over assorted transports, so it doesn't have an INET
dependency. Drop it and remove the includes of linux/inet.h.
NET_9P_FD/trans_fd.o builds without INET or UNIX and is usable over
plain file descriptors. However, tcp and unix functionality is still
built and would generate runtime failures if used. Add imply INET and
UNIX to NET_9P_FD, so functionality is enabled by default but can still
be explicitly disabled.
This allows configuring 9pfs over Xen with INET and UNIX disabled.
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
