Pull x86 mm updates from Ingo Molnar:
- Extend the memmap= boot parameter syntax to allow the redeclaration
and dropping of existing ranges, and to support all e820 range types
(Jan H. Schönherr)
- Improve the W+X boot time security checks to remove false positive
warnings on Xen (Jan Beulich)
- Support booting as Xen PVH guest (Juergen Gross)
- Improved 5-level paging (LA57) support, in particular it's possible
now to have a single kernel image for both 4-level and 5-level
hardware (Kirill A. Shutemov)
- AMD hardware RAM encryption support (SME/SEV) fixes (Tom Lendacky)
- Preparatory commits for hardware-encrypted RAM support on Intel CPUs.
(Kirill A. Shutemov)
- Improved Intel-MID support (Andy Shevchenko)
- Show EFI page tables in page_tables debug files (Andy Lutomirski)
- ... plus misc fixes and smaller cleanups
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits)
x86/cpu/tme: Fix spelling: "configuation" -> "configuration"
x86/boot: Fix SEV boot failure from change to __PHYSICAL_MASK_SHIFT
x86/mm: Update comment in detect_tme() regarding x86_phys_bits
x86/mm/32: Remove unused node_memmap_size_bytes() & CONFIG_NEED_NODE_MEMMAP_SIZE logic
x86/mm: Remove pointless checks in vmalloc_fault
x86/platform/intel-mid: Add special handling for ACPI HW reduced platforms
ACPI, x86/boot: Introduce the ->reduced_hw_early_init() ACPI callback
ACPI, x86/boot: Split out acpi_generic_reduce_hw_init() and export
x86/pconfig: Provide defines and helper to run MKTME_KEY_PROG leaf
x86/pconfig: Detect PCONFIG targets
x86/tme: Detect if TME and MKTME is activated by BIOS
x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G
x86/boot/compressed/64: Use page table in trampoline memory
x86/boot/compressed/64: Use stack from trampoline memory
x86/boot/compressed/64: Make sure we have a 32-bit code segment
x86/mm: Do not use paravirtualized calls in native_set_p4d()
kdump, vmcoreinfo: Export pgtable_l5_enabled value
x86/boot/compressed/64: Prepare new top-level page table for trampoline
x86/boot/compressed/64: Set up trampoline memory
x86/boot/compressed/64: Save and restore trampoline memory
...
Pull scheduler updates from Ingo Molnar:
"The main scheduler changes in this cycle were:
- NUMA balancing improvements (Mel Gorman)
- Further load tracking improvements (Patrick Bellasi)
- Various NOHZ balancing cleanups and optimizations (Peter Zijlstra)
- Improve blocked load handling, in particular we can now reduce and
eventually stop periodic load updates on 'very idle' CPUs. (Vincent
Guittot)
- On isolated CPUs offload the final 1Hz scheduler tick as well, plus
related cleanups and reorganization. (Frederic Weisbecker)
- Core scheduler code cleanups (Ingo Molnar)"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)
sched/core: Update preempt_notifier_key to modern API
sched/cpufreq: Rate limits for SCHED_DEADLINE
sched/fair: Update util_est only on util_avg updates
sched/cpufreq/schedutil: Use util_est for OPP selection
sched/fair: Use util_est in LB and WU paths
sched/fair: Add util_est on top of PELT
sched/core: Remove TASK_ALL
sched/completions: Use bool in try_wait_for_completion()
sched/fair: Update blocked load when newly idle
sched/fair: Move idle_balance()
sched/nohz: Merge CONFIG_NO_HZ_COMMON blocks
sched/fair: Move rebalance_domains()
sched/nohz: Optimize nohz_idle_balance()
sched/fair: Reduce the periodic update duration
sched/nohz: Stop NOHZ stats when decayed
sched/cpufreq: Provide migration hint
sched/nohz: Clean up nohz enter/exit
sched/fair: Update blocked load from NEWIDLE
sched/fair: Add NOHZ stats balancing
sched/fair: Restructure nohz_balance_kick()
...
This keeps it in line with the SYSCALL_DEFINEx() / COMPAT_SYSCALL_DEFINEx()
calling convention.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Pull perf updates from Ingo Molnar:
"The main kernel side changes were:
- Modernize the kprobe and uprobe creation/destruction tooling ABIs:
The existing text based APIs (kprobe_events and uprobe_events in
tracefs), are naive, limited ABIs in that they require user-space
to clean up after themselves, which is both difficult and fragile
if the tool is buggy or exits unexpectedly. In other words they are
not really suited for modern, robust tooling.
So introduce a modern, file descriptor based ABI that does not have
these limitations: introduce the 'perf_kprobe' and 'perf_uprobe'
PMUs and extend the perf_event_open() syscall to create events with
a kprobe/uprobe attached to them. These [k,u]probe are associated
with this file descriptor, so they are not available in tracefs.
(Song Liu)
- Intel Cannon Lake CPU support (Harry Pan)
- Intel PT cleanups (Alexander Shishkin)
- Improve the performance of pinned/flexible event groups by using RB
trees (Alexey Budankov)
- Add PERF_EVENT_IOC_MODIFY_ATTRIBUTES which allows the modification
of hardware breakpoints, which new ABI variant massively speeds up
existing tooling that uses hardware breakpoints to instrument (and
debug) memory usage.
(Milind Chabbi, Jiri Olsa)
- Various Intel PEBS handling fixes and improvements, and other Intel
PMU improvements (Kan Liang)
- Various perf core improvements and optimizations (Peter Zijlstra)
- ... misc cleanups, fixes and updates.
There's over 200 tooling commits, here's an (imperfect) list of
highlights:
- 'perf annotate' improvements:
* Recognize and handle jumps to other functions as calls, which
improves the navigation along jumps and back. (Arnaldo Carvalho
de Melo)
* Add the 'P' hotkey in TUI annotation to dump annotation output
into a file, to ease e-mail reporting of annotation details.
(Arnaldo Carvalho de Melo)
* Add an IPC/cycles column to the TUI (Jin Yao)
* Improve s390 assembly annotation (Thomas Richter)
* Refactor the output formatting logic to better separate it into
interactive and non-interactive features and add the --stdio2
output variant to demonstrate this. (Arnaldo Carvalho de Melo)
- 'perf script' improvements:
* Add Python 3 support (Jaroslav Škarvada)
* Add --show-round-event (Jiri Olsa)
- 'perf c2c' improvements:
* Add NUMA analysis support (Jiri Olsa)
- 'perf trace' improvements:
* Improve PowerPC support (Ravi Bangoria)
- 'perf inject' improvements:
* Integrate ARM CoreSight traces (Robert Walker)
- 'perf stat' improvements:
* Add the --interval-count option (yuzhoujian)
* Add the --timeout option (yuzhoujian)
- 'perf sched' improvements (Changbin Du)
- Vendor events improvements :
* Add IBM s390 vendor events (Thomas Richter)
* Add and improve arm64 vendor events (John Garry, Ganapatrao
Kulkarni)
* Update POWER9 vendor events (Sukadev Bhattiprolu)
- Intel PT tooling improvements (Adrian Hunter)
- PMU handling improvements (Agustin Vega-Frias)
- Record machine topology in perf.data (Jiri Olsa)
- Various overwrite related cleanups (Kan Liang)
- Add arm64 dwarf post unwind support (Kim Phillips, Jean Pihet)
- ... and lots of other changes, cleanups and fixes, see the shortlog
and Git history for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf/x86/intel: Enable C-state residency events for Cannon Lake
perf/x86/intel: Add Cannon Lake support for RAPL profiling
perf/x86/pt, coresight: Clean up address filter structure
perf vendor events s390: Add JSON files for IBM z14
perf vendor events s390: Add JSON files for IBM z13
perf vendor events s390: Add JSON files for IBM zEC12 zBC12
perf vendor events s390: Add JSON files for IBM z196
perf vendor events s390: Add JSON files for IBM z10EC z10BC
perf mmap: Be consistent when checking for an unmaped ring buffer
perf mmap: Fix accessing unmapped mmap in perf_mmap__read_done()
perf build: Fix check-headers.sh opts assignment
perf/x86: Update rdpmc_always_available static key to the modern API
perf annotate: Use absolute addresses to calculate jump target offsets
perf annotate: Defer searching for comma in raw line till it is needed
perf annotate: Support jumping from one function to another
perf annotate: Add "_local" to jump/offset validation routines
perf python: Reference Py_None before returning it
perf annotate: Mark jumps to outher functions with the call arrow
perf annotate: Pass function descriptor to its instruction parsing routines
perf annotate: No need to calculate notes->start twice
...
Pull locking updates from Ingo Molnar:
"The main changes in the locking subsystem in this cycle were:
- Add the Linux Kernel Memory Consistency Model (LKMM) subsystem,
which is an an array of tools in tools/memory-model/ that formally
describe the Linux memory coherency model (a.k.a.
Documentation/memory-barriers.txt), and also produce 'litmus tests'
in form of kernel code which can be directly executed and tested.
Here's a high level background article about an earlier version of
this work on LWN.net:
https://lwn.net/Articles/718628/
The design principles:
"There is reason to believe that Documentation/memory-barriers.txt
could use some help, and a major purpose of this patch is to
provide that help in the form of a design-time tool that can
produce all valid executions of a small fragment of concurrent
Linux-kernel code, which is called a "litmus test". This tool's
functionality is roughly similar to a full state-space search.
Please note that this is a design-time tool, not useful for
regression testing. However, we hope that the underlying
Linux-kernel memory model will be incorporated into other tools
capable of analyzing large bodies of code for regression-testing
purposes."
[...]
"A second tool is klitmus7, which converts litmus tests to
loadable kernel modules for direct testing. As with herd7, the
klitmus7 code is freely available from
http://diy.inria.fr/sources/index.html
(and via "git" at https://github.com/herd/herdtools7)"
[...]
Credits go to:
"This patch was the result of a most excellent collaboration
founded by Jade Alglave and also including Alan Stern, Andrea
Parri, and Luc Maranget."
... and to the gents listed in the MAINTAINERS entry:
LINUX KERNEL MEMORY CONSISTENCY MODEL (LKMM)
M: Alan Stern <stern@rowland.harvard.edu>
M: Andrea Parri <parri.andrea@gmail.com>
M: Will Deacon <will.deacon@arm.com>
M: Peter Zijlstra <peterz@infradead.org>
M: Boqun Feng <boqun.feng@gmail.com>
M: Nicholas Piggin <npiggin@gmail.com>
M: David Howells <dhowells@redhat.com>
M: Jade Alglave <j.alglave@ucl.ac.uk>
M: Luc Maranget <luc.maranget@inria.fr>
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
The LKMM project already found several bugs in Linux locking
primitives and improved the understanding and the documentation of
the Linux memory model all around.
- Add KASAN instrumentation to atomic APIs (Dmitry Vyukov)
- Add RWSEM API debugging and reorganize the lock debugging Kconfig
(Waiman Long)
- ... misc cleanups and other smaller changes"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
locking/Kconfig: Restructure the lock debugging menu
locking/Kconfig: Add LOCK_DEBUGGING_SUPPORT to make it more readable
locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches
lockdep: Make the lock debug output more useful
locking/rtmutex: Handle non enqueued waiters gracefully in remove_waiter()
locking/atomic, asm-generic, x86: Add comments for atomic instrumentation
locking/atomic, asm-generic: Add KASAN instrumentation to atomic operations
locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
locking/atomic, asm-generic: Add asm-generic/atomic-instrumented.h
locking/xchg/alpha: Remove superfluous memory barriers from the _local() variants
tools/memory-model: Finish the removal of rb-dep, smp_read_barrier_depends(), and lockless_dereference()
tools/memory-model: Add documentation of new litmus test
tools/memory-model: Remove mention of docker/gentoo image
locking/memory-barriers: De-emphasize smp_read_barrier_depends() some more
locking/lockdep: Show unadorned pointers
mutex: Drop linkage.h from mutex.h
tools/memory-model: Remove rb-dep, smp_read_barrier_depends, and lockless_dereference
tools/memory-model: Convert underscores to hyphens
tools/memory-model: Add a S lock-based external-view litmus test
tools/memory-model: Add required herd7 version to README file
...
Pull RCU updates from Ingo Molnar:
"The main RCU subsystem changes in this cycle were:
- Miscellaneous fixes, perhaps most notably removing obsolete code
whose only purpose in life was to gather information for the
now-removed RCU debugfs facility. Other notable changes include
removing NO_HZ_FULL_ALL in favor of the nohz_full kernel boot
parameter, minor optimizations for expedited grace periods, some
added tracing, creating an RCU-specific workqueue using Tejun's new
WQ_MEM_RECLAIM flag, and several cleanups to code and comments.
- SRCU cleanups and optimizations.
- Torture-test updates, perhaps most notably the adding of ARMv8
support, but also including numerous cleanups and usability fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
rcu: Create RCU-specific workqueues with rescuers
torture: Provide more sensible nreader/nwriter defaults for rcuperf
torture: Grace periods do not piggyback off of themselves
torture: Adjust rcuperf trace processing to allow for workqueues
torture: Default jitter off when running rcuperf
torture: Specify qemu memory size with --memory argument
rcutorture: Add basic ARM64 support to run scripts
rcutorture: Update kvm.sh header comment
rcutorture: Record which grace-period primitives are tested
rcutorture: Re-enable testing of dynamic expediting
rcutorture: Avoid fake-writer use of undefined primitives
rcutorture: Abstract function and module names
rcutorture: Replace multi-instance kzalloc() with kcalloc()
rcu: Remove SRCU throttling
srcu: Remove dead code in srcu_gp_end()
srcu: Reduce scans of srcu_data in counter wrap check
srcu: Prevent sdp->srcu_gp_seq_needed_exp counter wrap
srcu: Abstract function name
rcu: Make expedited RCU CPU selection avoid unnecessary stores
rcu: Trace expedited GP delays due to transitioning CPUs
...
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Merge tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"Cannonlake and Vega12 support are probably the two major things. This
pull lacks nouveau, Ben had some unforseen leave and a few other
blockers so we'll see how things look or maybe leave it for this merge
window.
core:
- Device links to handle sound/gpu pm dependency
- Color encoding/range properties
- Plane clipping into plane check helper
- Backlight helpers
- DP TP4 + HBR3 helper support
amdgpu:
- Vega12 support
- Enable DC by default on all supported GPUs
- Powerplay restructuring and cleanup
- DC bandwidth calc updates
- DC backlight on pre-DCE11
- TTM backing store dropping support
- SR-IOV fixes
- Adding "wattman" like functionality
- DC crc support
- Improved DC dual-link handling
amdkfd:
- GPUVM support for dGPU
- KFD events for dGPU
- Enable PCIe atomics for dGPUs
- HSA process eviction support
- Live-lock fixes for process eviction
- VM page table allocation fix for large-bar systems
panel:
- Raydium RM68200
- AUO G104SN02 V2
- KEO TX31D200VM0BAA
- ARM Versatile panels
i915:
- Cannonlake support enabled
- AUX-F port support added
- Icelake base enabling until internal milestone of forcewake support
- Query uAPI interface (used for GPU topology information currently)
- Compressed framebuffer support for sprites
- kmem cache shrinking when GPU is idle
- Avoid boosting GPU when waited item is being processed already
- Avoid retraining LSPCON link unnecessarily
- Decrease request signaling latency
- Deprecation of I915_SET_COLORKEY_NONE
- Kerneldoc and compiler warning cleanup for upcoming CI enforcements
- Full range ycbcr toggling
- HDCP support
i915/gvt:
- Big refactor for shadow ppgtt
- KBL context save/restore via LRI cmd (Weinan)
- Properly unmap dma for guest page (Changbin)
vmwgfx:
- Lots of various improvements
etnaviv:
- Use the drm gpu scheduler
- prep work for GC7000L support
vc4:
- fix alpha blending
- Expose perf counters to userspace
pl111:
- Bandwidth checking/limiting
- Versatile panel support
sun4i:
- A83T HDMI support
- A80 support
- YUV plane support
- H3/H5 HDMI support
omapdrm:
- HPD support for DVI connector
- remove lots of static variables
msm:
- DSI updates from 10nm / SDM845
- fix for race condition with a3xx/a4xx fence completion irq
- some refactoring/prep work for eventual a6xx support (ie. when we
have a userspace)
- a5xx debugfs enhancements
- some mdp5 fixes/cleanups to prepare for eventually merging
writeback
- support (ie. when we have a userspace)
tegra:
- mmap() fixes for fbdev devices
- Overlay plane for hw cursor fix
- dma-buf cache maintenance support
mali-dp:
- YUV->RGB conversion support
rockchip:
- rk3399/chromebook fixes and improvements
rcar-du:
- LVDS support move to drm bridge
- DT bindings for R8A77995
- Driver/DT support for R8A77970
tilcdc:
- DRM panel support"
* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
drm/i915: Fix hibernation with ACPI S0 target state
drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
drm/i915: Specify which engines to reset following semaphore/event lockups
drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
drm/amdkfd: Use ordered workqueue to restore processes
drm/amdgpu: Fix acquiring VM on large-BAR systems
drm/amd/pp: clean header file hwmgr.h
drm/amd/pp: use mlck_table.count for array loop index limit
drm: Fix uabi regression by allowing garbage mode->type from userspace
drm/amdgpu: Add an ATPX quirk for hybrid laptop
drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
drm/amd/pp: Add new asic support in pp_psm.c
drm/amd/pp: Clean up powerplay code on Vega12
drm/amd/pp: Add smu irq handlers for legacy asics
drm/amd/pp: Fix set wrong temperature range on smu7
drm/amdgpu: Don't change preferred domian when fallback GTT v5
drm/vmwgfx: Bump version patchlevel and date
drm/vmwgfx: use monotonic event timestamps
drm/vmwgfx: Unpin the screen object backup buffer when not used
drm/vmwgfx: Stricter count of legacy surface device resources
...
This extends the sysfs interface for thermal cooling devices and exposes
some pretty useful statistics. These statistics have proven to be quite
useful specially while doing benchmarks related to the task scheduler,
where we want to make sure that nothing has disrupted the test,
specially the cooling device which may have put constraints on the CPUs.
The information exposed here tells us to what extent the CPUs were
constrained by the thermal framework.
The write-only "reset" file is used to reset the statistics.
The read-only "time_in_state_ms" file shows the time (in msec) spent by the
device in the respective cooling states, and it prints one line per
cooling state.
The read-only "total_trans" file shows single positive integer value
showing the total number of cooling state transitions the device has
gone through since the time the cooling device is registered or the time
when statistics were reset last.
The read-only "trans_table" file shows a two dimensional matrix, where
an entry <i,j> (row i, column j) represents the number of transitions
from State_i to State_j.
This is how the directory structure looks like for a single cooling
device:
$ ls -R /sys/class/thermal/cooling_device0/
/sys/class/thermal/cooling_device0/:
cur_state max_state power stats subsystem type uevent
/sys/class/thermal/cooling_device0/power:
autosuspend_delay_ms runtime_active_time runtime_suspended_time
control runtime_status
/sys/class/thermal/cooling_device0/stats:
reset time_in_state_ms total_trans trans_table
This is tested on ARM 64-bit Hisilicon hikey620 board running Ubuntu and
ARM 64-bit Hisilicon hikey960 board running Android.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit changes statfs default behaviour when reporting usage
statistics. Instead of using the overall filesystem usage, statfs now
reports the quota for the filesystem root, if ceph.quota.max_bytes has
been set for this inode. If quota hasn't been set, it falls back to the
old statfs behaviour.
A new mount option is also added ('noquotadf') to disable this behaviour.
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This patch adds the infrastructure required to support cephfs quotas as it
is currently implemented in the ceph fuse client. Cephfs quotas can be
set on any directory, and can restrict the number of bytes or the number
of files stored beneath that point in the directory hierarchy.
Quotas are set using the extended attributes 'ceph.quota.max_files' and
'ceph.quota.max_bytes', and can be removed by setting these attributes to
'0'.
Link: http://tracker.ceph.com/issues/22372
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
* pm-cpuidle:
cpuidle: poll_state: Avoid invoking local_clock() too often
PM: cpuidle/suspend: Add s2idle usage and time state attributes
cpuidle: Enable coupled cpuidle support on Exynos3250 platform
cpuidle: poll_state: Add time limit to poll_idle()
ARM: cpuidle: Drop memory allocation error message from arm_idle_init_cpu()
* pm-tools:
pm-graph: AnalyzeSuspend v5.0
pm-graph: AnalyzeBoot v2.2
pm-graph: config files and installer
* pm-cpufreq: (38 commits)
cpufreq: CPPC: Use transition_delay_us depending transition_latency
cpufreq: tegra186: Don't validate the frequency table twice
cpufreq: speedstep: Don't validate the frequency table twice
cpufreq: sparc: Don't validate the frequency table twice
cpufreq: sh: Don't validate the frequency table twice
cpufreq: sfi: Don't validate the frequency table twice
cpufreq: scpi: Don't validate the frequency table twice
cpufreq: sc520: Don't validate the frequency table twice
cpufreq: s3c24xx: Don't validate the frequency table twice
cpufreq: qoirq: Don't validate the frequency table twice
cpufreq: pxa: Don't validate the frequency table twice
cpufreq: ppc_cbe: Don't validate the frequency table twice
cpufreq: powernow: Don't validate the frequency table twice
cpufreq: p4-clockmod: Don't validate the frequency table twice
cpufreq: mediatek: Don't validate the frequency table twice
cpufreq: longhaul: Don't validate the frequency table twice
cpufreq: ia64-acpi: Don't validate the frequency table twice
cpufreq: elanfreq: Don't validate the frequency table twice
cpufreq: e_powersaver: Don't validate the frequency table twice
cpufreq: cpufreq-dt: Don't validate the frequency table twice
...
* pm-core:
driver core: Introduce device links reference counting
PM / wakeirq: Add wakeup name to dedicated wake irqs
* pm-sleep:
PM / hibernate: Change message when writing to /sys/power/resume
PM / hibernate: Make passing hibernate offsets more friendly
PCMCIA / PM: Avoid noirq suspend aborts during suspend-to-idle
* acpi-pm:
ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
ACPI / PM: Allow deeper wakeup power states with no _SxD nor _SxW
ACPI / PM: Reduce LPI constraints logging noise
ACPI / PM: Do not reconfigure GPEs for suspend-to-idle
* acpi-battery:
Revert "ACPI: battery: Add the ThinkPad "Not Charging" quirk"
ACPI: battery: do not export degraded capacity values over 100
ACPI: battery: make function __battery_hook_unregister() static
ACPI: battery: Add the ThinkPad "Not Charging" quirk
thinkpad_acpi: Add support for battery thresholds
power: add to_power_supply macro to the API
battery: Add the battery hooking API
* acpi-doc:
ACPI: sysfs: Update device object sysfs documentation
* acpi-pmic:
ACPI / PMIC: Replace license boilerplate with SPDX license identifier
Minor conflicts in drivers/net/ethernet/mellanox/mlx5/core/en_rep.c,
we had some overlapping changes:
1) In 'net' MLX5E_PARAMS_LOG_{SQ,RQ}_SIZE -->
MLX5E_REP_PARAMS_LOG_{SQ,RQ}_SIZE
2) In 'net-next' params->log_rq_size is renamed to be
params->log_rq_mtu_frames.
3) In 'net-next' params->hard_mtu is added.
Signed-off-by: David S. Miller <davem@davemloft.net>
Some users are willing to provision huge amounts of memory to be able
to perform reassembly reasonnably well under pressure.
Current memory tracking is using one atomic_t and integers.
Switch to atomic_long_t so that 64bit arches can use more than 2GB,
without any cost for 32bit arches.
Note that this patch avoids an overflow error, if high_thresh was set
to ~2GB, since this test in inet_frag_alloc() was never true :
if (... || frag_mem_limit(nf) > nf->high_thresh)
Tested:
$ echo 16000000000 >/proc/sys/net/ipv4/ipfrag_high_thresh
<frag DDOS>
$ grep FRAG /proc/net/sockstat
FRAG: inuse 14705885 memory 16000002880
$ nstat -n ; sleep 1 ; nstat | grep Reas
IpReasmReqds 3317150 0.0
IpReasmFails 3317112 0.0
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some applications still rely on IP fragmentation, and to be fair linux
reassembly unit is not working under any serious load.
It uses static hash tables of 1024 buckets, and up to 128 items per bucket (!!!)
A work queue is supposed to garbage collect items when host is under memory
pressure, and doing a hash rebuild, changing seed used in hash computations.
This work queue blocks softirqs for up to 25 ms when doing a hash rebuild,
occurring every 5 seconds if host is under fire.
Then there is the problem of sharing this hash table for all netns.
It is time to switch to rhashtables, and allocate one of them per netns
to speedup netns dismantle, since this is a critical metric these days.
Lookup is now using RCU. A followup patch will even remove
the refcount hold/release left from prior implementation and save
a couple of atomic operations.
Before this patch, 16 cpus (16 RX queue NIC) could not handle more
than 1 Mpps frags DDOS.
After the patch, I reach 9 Mpps without any tuning, and can use up to 2GB
of storage for the fragments (exact number depends on frags being evicted
after timeout)
$ grep FRAG /proc/net/sockstat
FRAG: inuse 1966916 memory 2140004608
A followup patch will change the limits for 64bit arches.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Florian Westphal <fw@strlen.de>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Alexander Aring <alex.aring@gmail.com>
Cc: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Meson8m2 SoC uses a similar (potentially even identical) register
layout for the dwmac glue as Meson8b and GXBB. Unfortunately there is no
documentation available.
Testing shows that both, RMII and RGMII PHYs are working if they are
configured as on Meson8b. Add a new compatible string to the
documentation so differences (if there are any) between Meson8m2 and the
other SoCs can be taken care of within the driver.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Fix RCU locking in xfrm_local_error(), from Taehee Yoo.
2) Fix return value assignments and thus error checking in
iwl_mvm_start_ap_ibss(), from Johannes Berg.
3) Don't count header length twice in vti4, from Stefano Brivio.
4) Fix deadlock in rt6_age_examine_exception, from Eric Dumazet.
5) Fix out-of-bounds access in nf_sk_lookup_slow{v4,v6}() from Subash
Abhinov.
6) Check nladdr size in netlink_connect(), from Alexander Potapenko.
7) VF representor SQ numbers are 32 not 16 bits, in mlx5 driver, from
Or Gerlitz.
8) Out of bounds read in skb_network_protocol(), from Eric Dumazet.
9) r8169 driver sets driver data pointer after register_netdev() which
is too late. Fix from Heiner Kallweit.
10) Fix memory leak in mlx4 driver, from Moshe Shemesh.
11) The multi-VLAN decap fix added a regression when dealing with device
that lack a MAC header, such as tun. Fix from Toshiaki Makita.
12) Fix integer overflow in dynamic interrupt coalescing code. From Tal
Gilboa.
13) Use after free in vrf code, from David Ahern.
14) IPV6 route leak between VRFs fix, also from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
net: mvneta: fix enable of all initialized RXQs
net/ipv6: Fix route leaking between VRFs
vrf: Fix use after free and double free in vrf_finish_output
ipv6: sr: fix seg6 encap performances with TSO enabled
net/dim: Fix int overflow
vlan: Fix vlan insertion for packets without ethernet header
net: Fix untag for vlan packets without ethernet header
atm: iphase: fix spelling mistake: "Receiverd" -> "Received"
vhost: validate log when IOTLB is enabled
qede: Do not drop rx-checksum invalidated packets.
hv_netvsc: enable multicast if necessary
ip_tunnel: Resolve ipsec merge conflict properly.
lan78xx: Crash in lan78xx_writ_reg (Workqueue: events lan78xx_deferred_multicast_write)
qede: Fix barrier usage after tx doorbell write.
vhost: correctly remove wait queue during poll failure
net/mlx4_core: Fix memory leak while delete slave's resources
net/mlx4_en: Fix mixed PFC and Global pause user control requests
net/smc: use announced length in sock_recvmsg()
llc: properly handle dev_queue_xmit() return value
strparser: Fix sign of err codes
...
The "pcie_ports=auto" parameter set pcie_ports_disabled and pcie_ports_auto
to their compiled-in defaults, so specifying the parameter is the same as
not using it at all.
Remove the "pcie_ports=auto" parameter and update the documentation.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
7570a333d8b0 ("PCI: Add pcie_hp=nomsi to disable MSI/MSI-X for pciehp
driver") added the "pcie_hp=nomsi" kernel parameter to work around this
error on shutdown:
irq 16: nobody cared (try booting with the "irqpoll" option)
Pid: 1081, comm: reboot Not tainted 3.2.0 #1
...
Disabling IRQ #16
This happened on an unspecified system (possibly involving the Integrated
Device Technology, Inc. Device 807f bridge) where "an un-wanted interrupt
is generated when PCI driver switches from MSI/MSI-X to INTx while shutting
down the device."
The implication was that the device was buggy, but it is normal for a
device to use INTx after MSI/MSI-X have been disabled. The only problem
was that the driver was still attached and it wasn't prepared for INTx
interrupts. Prarit Bhargava fixed this issue with fda78d7a0ead ("PCI/MSI:
Stop disabling MSI/MSI-X in pci_device_shutdown()").
There is no automated way to set this parameter, so it's not very useful
for distributions or end users. It's really only useful for debugging, and
we have "pci=nomsi" for that purpose.
Revert 7570a333d8b0 to remove the "pcie_hp=nomsi" parameter.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
CC: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
CC: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
CC: Prarit Bhargava <prarit@redhat.com>
The clock name should be ipg instead of igp.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Add a note that it is perfectly legal to "abandon" a request object:
- call .init() and then (as many times) .update()
- _not_ call any of .final(), .finup() or .export() at any point in
future
Link: https://lkml.kernel.org/r/20180222114741.GA27631@gondor.apana.org.au
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Add a new compatible string for the RZ/G1C (R8A77470) SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Clarify that when disable_ipv6 is enabled even the ipv6 routes
are deleted for the selected interface and from now it will not
be possible to add addresses/routes to that interface
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter/IPVS updates for net-next
The following patchset contains Netfilter/IPVS updates for your net-next
tree. This batch comes with more input sanitization for xtables to
address bug reports from fuzzers, preparation works to the flowtable
infrastructure and assorted updates. In no particular order, they are:
1) Make sure userspace provides a valid standard target verdict, from
Florian Westphal.
2) Sanitize error target size, also from Florian.
3) Validate that last rule in basechain matches underflow/policy since
userspace assumes this when decoding the ruleset blob that comes
from the kernel, from Florian.
4) Consolidate hook entry checks through xt_check_table_hooks(),
patch from Florian.
5) Cap ruleset allocations at 512 mbytes, 134217728 rules and reject
very large compat offset arrays, so we have a reasonable upper limit
and fuzzers don't exercise the oom-killer. Patches from Florian.
6) Several WARN_ON checks on xtables mutex helper, from Florian.
7) xt_rateest now has a hashtable per net, from Cong Wang.
8) Consolidate counter allocation in xt_counters_alloc(), from Florian.
9) Earlier xt_table_unlock() call in {ip,ip6,arp,eb}tables, patch
from Xin Long.
10) Set FLOW_OFFLOAD_DIR_* to IP_CT_DIR_* definitions, patch from
Felix Fietkau.
11) Consolidate code through flow_offload_fill_dir(), also from Felix.
12) Inline ip6_dst_mtu_forward() just like ip_dst_mtu_maybe_forward()
to remove a dependency with flowtable and ipv6.ko, from Felix.
13) Cache mtu size in flow_offload_tuple object, this is safe for
forwarding as f87c10a8aa1e describes, from Felix.
14) Rename nf_flow_table.c to nf_flow_table_core.o, to simplify too
modular infrastructure, from Felix.
15) Add rt0, rt2 and rt4 IPv6 routing extension support, patch from
Ahmed Abdelsalam.
16) Remove unused parameter in nf_conncount_count(), from Yi-Hung Wei.
17) Support for counting only to nf_conncount infrastructure, patch
from Yi-Hung Wei.
18) Add strict NFT_CT_{SRC_IP,DST_IP,SRC_IP6,DST_IP6} key datatypes
to nft_ct.
19) Use boolean as return value from ipt_ah and from IPVS too, patch
from Gustavo A. R. Silva.
20) Remove useless parameters in nfnl_acct_overquota() and
nf_conntrack_broadcast_help(), from Taehee Yoo.
21) Use ipv6_addr_is_multicast() from xt_cluster, also from Taehee Yoo.
22) Statify nf_tables_obj_lookup_byhandle, patch from Fengguang Wu.
23) Fix typo in xt_limit, from Geert Uytterhoeven.
24) Do no use VLAs in Netfilter code, again from Gustavo.
25) Use ADD_COUNTER from ebtables, from Taehee Yoo.
26) Bitshift support for CONNMARK and MARK targets, from Jack Ma.
27) Use pr_*() and add pr_fmt(), from Arushi Singhal.
28) Add synproxy support to ctnetlink.
29) ICMP type and IGMP matching support for ebtables, patches from
Matthias Schiffer.
30) Support for the revision infrastructure to ebtables, from
Bernie Harris.
31) String match support for ebtables, also from Bernie.
32) Documentation for the new flowtable infrastructure.
33) Use generic comparison functions in ebt_stp, from Joe Perches.
34) Demodularize filter chains in nftables.
35) Register conntrack hooks in case nftables NAT chain is added.
36) Merge assignments with return in a couple of spots in the
Netfilter codebase, also from Arushi.
37) Document that xtables percpu counters are stored in the same
memory area, from Ben Hutchings.
38) Revert mark_source_chains() sanity checks that break existing
rulesets, from Florian Westphal.
39) Use is_zero_ether_addr() in the ipset codebase, from Joe Perches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It's common practice to store MAC addresses for network interfaces into
nvmem devices. However the code to actually do this in the kernel lacks,
so this patch adds of_get_nvmem_mac_address() for drivers to obtain the
address from an nvmem cell provider.
This is particulary useful on devices where the ethernet interface cannot
be configured by the bootloader, for example because it's in an FPGA.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently the only way to specify a hibernate offset for a
swap file is on the kernel command line.
Add a new /sys/power/resume_offset that lets userspace
specify the offset and disk to use when initiating a hibernate
cycle.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This patch adds initial documentation for the Netfilter flowtable
infrastructure.
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Improve the bindings example by adding an example of how to represent
two SPI NOR devices.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
According to the old project site, https://sourceforge.net/projects/fuse/
the project has moved to https://github.com/libfuse/ so we update the
link to point to the latest libfuse release.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This adds bindings for the NI XGE 1G/10G network device.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
- New Qualcomm PDC irqchip
- New Microsemi Ocelot irqchip
- Suspend/resume support for some oddball GICv3 irqchip
- Better GIC/GICv3 support for kexec
- Various cleanups and fixes
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Merge tag 'irqchip-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates for 4.17 from Marc Zyngier:
- New Qualcomm PDC irqchip
- New Microsemi Ocelot irqchip
- Suspend/resume support for some oddball GICv3 irqchip
- Better GIC/GICv3 support for kexec
- Various cleanups and fixes
Add a new attribute group called "s2idle" under the sysfs directory
of each cpuidle state that supports the ->enter_s2idle callback
and put two new attributes, "usage" and "time", into that group to
represent the number of times the given state was requested for
suspend-to-idle and the total time spent in suspend-to-idle after
requesting that state, respectively.
That will allow diagnostic information related to suspend-to-idle
to be collected without enabling advanced debug features and
analyzing dmesg output.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add clock property, since we are going to control clocks in rockchip
iommu driver.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This mode is not used by any existing setup and should not be used
because it overwrites the BBMs. Let's just remove it before someone
starts using it.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Tested-by: Miquel Raynal <miquel.raynal@bootlin.com>
On Armada 7K/8K we need to explicitly enable the register clock. This
clock is optional because not all the SoCs using this IP need it but at
least for Armada 7K/8K it is actually mandatory.
The binding documentation is updated accordingly.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Provide a way to specify the endianness to use when accessing a
memory-mapped flash.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Add missing entries to the index and ensure the entries are in
alphabetical order. Also amd-memory-encryption.rst is an .rst
not a .txt.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
minor additions like pins for 2ch i2s0 and the cif test clocks as well
as a default rate for ACLK_VIO that should be 400MHz according to the TRM.
The rk3328 got uart dmas fixed - a non-critical fix, as nobody was using
that so far.
New boards are the rk3328-based roc-rk3328-cc, the rk3368-based Lion-SOM
+ baseborad from Theobroma Systems and a standalone variant of the Sapphire
board, as a lot of people where using that without the Exkavator baseboard.
Sapphire also saw a lot of small cleanups of things that are not part
of the actual Sapphire board, but the baseboard instead. The rk3399-puma
board got i2s and tsadc support and Gru got its DP node enabled.
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Merge tag 'v4.17-rockchip-dts64-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt
Pull "Rockchip dts64 changes for 4.17" from Heiko Stübner:
The rk3399 gained support its Cadence displayport controller and some
minor additions like pins for 2ch i2s0 and the cif test clocks as well
as a default rate for ACLK_VIO that should be 400MHz according to the TRM.
The rk3328 got uart dmas fixed - a non-critical fix, as nobody was using
that so far.
New boards are the rk3328-based roc-rk3328-cc, the rk3368-based Lion-SOM
+ baseborad from Theobroma Systems and a standalone variant of the Sapphire
board, as a lot of people where using that without the Exkavator baseboard.
Sapphire also saw a lot of small cleanups of things that are not part
of the actual Sapphire board, but the baseboard instead. The rk3399-puma
board got i2s and tsadc support and Gru got its DP node enabled.
* tag 'v4.17-rockchip-dts64-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: remove keep-power-in-suspend from sdhci of rk3399-sapphire
arm64: dts: rockchip: assign clock rate for ACLK_VIO on rk3399
arm64: dts: rockchip: add a standalone version of the rk3399 sapphire
arm64: dts: rockchip: move rk3399-sapphire pwr_btn to daughterboard
arm64: dts: rockchip: move rk3399-sapphire i2s2 to daughterboard
arm64: dts: rockchip: move rk3399-sapphire sdio to excavator baseboard
arm64: dts: rockchip: enable I2S codec on rk3399-puma-haikou
arm64: dts: rockchip: move i2s0 node from baseboard to SoM on rk3399-puma
arm64: dts: rockchip: vdd_log on rk3399-sapphire is not an i2c slave
arm64: dts: rockchip: add Haikou baseboard with RK3368-uQ7 SoM
arm64: dts: rockchip: add RK3368-uQ7 (Lion) SoM
dt-bindings: add RK3368-uQ7 SoM and EVK base board
arm64: dts: rockchip: Fix RK3328 UART DMAs
arm64: dts: rockchip: enable DP for rk3399-gru
arm64: dts: rockchip: add cdn-dp node for rk3399.
arm64: dts: rockchip: add i2s0-2ch-bus pins on rk3399
arm64: dts: rockchip: enable tsadc on rk3399-puma
arm64: dts: rockchip: add roc-rk3328-cc board
arm64: dts: rockchip: Add cif test clocks for rk3399
