Tags

x86-boot-2020-06-01

Misc updates:

 - Add the initrdmem= boot option to specify an initrd embedded in RAM (flash most likely)
 - Sanitize the CS value earlier during boot, which also fixes SEV-ES.
 - Various fixes and smaller cleanups.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

smp-core-2020-06-01

Misc cleanups in the SMP hotplug and cross-call code.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

perf-core-2020-06-01

Kernel side changes:

  - Add AMD Fam17h RAPL support
  - Introduce CAP_PERFMON to kernel and user space
  - Add Zhaoxin CPU support
  - Misc fixes and cleanups

Tooling changes:

  perf record:

    - Introduce --switch-output-event to use arbitrary events to be setup
      and read from a side band thread and, when they take place a signal
      be sent to the main 'perf record' thread, reusing the --switch-output
      code to take perf.data snapshots from the --overwrite ring buffer, e.g.:

	# perf record --overwrite -e sched:* \
		      --switch-output-event syscalls:*connect* \
		      workload

      will take perf.data.YYYYMMDDHHMMSS snapshots up to around the
      connect syscalls.

    - Add --num-synthesize-threads option to control degree of parallelism of the
      synthesize_mmap() code which is scanning /proc/PID/task/PID/maps and can be
      time consuming. This mimics pre-existing behaviour in 'perf top'.

  perf bench:

    - Add a multi-threaded synthesize benchmark.
    - Add kallsyms parsing benchmark.

  Intel PT support:

    - Stitch LBR records from multiple samples to get deeper backtraces,
      there are caveats, see the csets for details.
    - Allow using Intel PT to synthesize callchains for regular events.
    - Add support for synthesizing branch stacks for regular events (cycles,
      instructions, etc) from Intel PT data.

  Misc changes:

    - Updated perf vendor events for power9 and Coresight.
    - Add flamegraph.py script via 'perf flamegraph'
    - Misc other changes, fixes and cleanups - see the Git log for details.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

acpi-5.8-rc1

ACPI updates for 5.8-rc1

 - Update the ACPICA code in the kernel to upstream revision
   20200430:

   * Move acpi_gbl_next_cmd_num definition (Erik Kaneda).

   * Ignore AE_ALREADY_EXISTS status in the disassembler when parsing
     create operators (Erik Kaneda).

   * Add status checks to the dispatcher (Erik Kaneda).

   * Fix required parameters for _NIG and _NIH (Erik Kaneda).

   * Make acpi_protocol_lengths static (Yue Haibing).

 - Fix ACPI table reference counting errors in several places, mostly
   in error code paths (Hanjun Guo).

 - Extend the Generic Event Device (GED) driver to support _Exx and
   _Lxx handler methods (Ard Biesheuvel).

 - Add new acpi_evaluate_reg() helper and modify the ACPI PCI hotplug
   code to use it (Hans de Goede).

 - Add new DPTF battery participant driver and make the DPFT power
   participant driver create more sysfs device attributes (Srinivas
   Pandruvada).

 - Improve the handling of memory failures in APEI (James Morse).

 - Add new blacklist entry for Acer TravelMate 5735Z to the backlight
   driver (Paul Menzel).

 - Add i2c address for thermal control to the PMIC driver (Mauro
   Carvalho Chehab).

 - Allow the ACPI processor idle driver to work on platforms with
   only one ACPI C-state present (Zhang Rui).

 - Fix kobject reference count leaks in error code paths in two
   places (Qiushi Wu).

 - Delete unused proc filename macros and make some symbols static
   (Pascal Terjan, Zheng Zengkai, Zou Wei).

pnp-5.8-rc1

PNP update for 5.8-rc1

Replace a zero-length array with a flexible-array (Gustavo A. R. Silva).

objtool-core-2020-06-01

There are a lot of objtool changes in this cycle, all across the map:

 - Speed up objtool significantly, especially when there are large number of sections
 - Improve objtool's understanding of special instructions such as IRET,
   to reduce the number of annotations required
 - Implement 'noinstr' validation
 - Do baby steps for non-x86 objtool use
 - Simplify/fix retpoline decoding
 - Add vmlinux validation
 - Improve documentation
 - Fix various bugs and apply smaller cleanups

Signed-off-by: Ingo Molnar <mingo@kernel.org>

pm-5.8-rc1

Power management updates for 5.8-rc1

 - Rework the system-wide PM driver flags to make them easier to
   understand and use and update their documentation (Rafael Wysocki,
   Alan Stern).

 - Allow cpuidle governors to be switched at run time regardless of
   the kernel configuration and update the related documentation
   accordingly (Hanjun Guo).

 - Improve the resume device handling in the user space hibernarion
   interface code (Domenico Andreoli).

 - Document the intel-speed-select sysfs interface (Srinivas
   Pandruvada).

 - Make the ACPI code handing suspend to idle print more debug
   messages to help diagnose issues with it (Rafael Wysocki).

 - Fix a helper routine in the cpufreq core and correct a typo in
   the struct cpufreq_driver kerneldoc comment (Rafael Wysocki, Wang
   Wenhu).

 - Update cpufreq drivers:

   * Make the intel_pstate driver start in the passive mode by
     default on systems without HWP (Rafael Wysocki).

   * Add i.MX7ULP support to the imx-cpufreq-dt driver and add
     i.MX7ULP to the cpufreq-dt-platdev blacklist (Peng Fan).

   * Convert the qoriq cpufreq driver to a platform one, make the
     platform code create a suitable device object for it and add
     platform dependencies to it (Mian Yousaf Kaukab, Geert
     Uytterhoeven).

   * Fix wrong compatible binding in the qcom driver (Ansuel Smith).

   * Build the omap driver by default for ARCH_OMAP2PLUS (Anders
     Roxell).

   * Add r8a7742 SoC support to the dt cpufreq driver (Lad Prabhakar).

 - Update cpuidle core and drivers:

   * Fix three reference count leaks in error code paths in the
     cpuidle core (Qiushi Wu).

   * Convert Qualcomm SPM to a generic cpuidle driver (Stephan
     Gerhold).

   * Fix up the execution order when entering a domain idle state in
     the PSCI driver (Ulf Hansson).

 - Fix a reference counting issue related to clock management and
   clean up two oddities in the PM-runtime framework (Rafael Wysocki,
   Andy Shevchenko).

 - Add ElkhartLake support to the Intel RAPL power capping driver
   and remove an unused local MSR definition from it (Jacob Pan,
   Sumeet Pawnikar).

 - Update devfreq core and drivers:

   * Replace strncpy() with strscpy() in the devfreq core and use
     lockdep asserts instead of manual checks for a locked mutex in
     it (Dmitry Osipenko, Krzysztof Kozlowski).

   * Add a generic imx bus scaling driver and make it register an
     interconnect device (Leonard Crestez, Gustavo A. R. Silva).

   * Make the cpufreq notifier in the tegra30 driver take boosting
     into account and delete an unuseful error message from that
     driver (Dmitry Osipenko, Markus Elfring).

 - Remove unneeded semicolon from the cpupower code (Zou Wei).

locking-core-2020-06-01

The biggest change to core locking facilities in this cycle is the introduction
of local_lock_t - this primitive comes from the -rt project and identifies
CPU-local locking dependencies normally handled opaquely beind preempt_disable()
or local_irq_save/disable() critical sections.

The generated code on mainline kernels doesn't change as a result, but still there
are benefits: improved debugging and better documentation of data structure
accesses.

The new local_lock_t primitives are introduced and then utilized in a couple of
kernel subsystems. No change in functionality is intended.

There's also other smaller changes and cleanups.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

efi-core-2020-06-01

The EFI changes for this cycle are:

 - preliminary changes for RISC-V
 - Add support for setting the resolution on the EFI framebuffer
 - Simplify kernel image loading for arm64
 - Move .bss into .data via the linker script instead of relying on symbol
   annotations.
 - Get rid of __pure getters to access global variables
 - Clean up the config table matching arrays
 - Rename pr_efi/pr_efi_err to efi_info/efi_err, and use them consistently
 - Simplify and unify initrd loading
 - Parse the builtin command line on x86 (if provided)
 - Implement printk() support, including support for wide character strings
 - Simplify GDT handling in early mixed mode thunking code
 - Some other minor fixes and cleanups

Signed-off-by: Ingo Molnar <mingo@kernel.org>

core-rcu-2020-06-01

The RCU updates for this cycle were:

 - RCU-tasks update, including addition of RCU Tasks Trace for
   BPF use and TASKS_RUDE_RCU
 - kfree_rcu() updates.
 - Remove scheduler locking restriction
 - RCU CPU stall warning updates.
 - Torture-test updates.
 - Miscellaneous fixes and other updates.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

core-kprobes-2020-06-01

Various kprobes updates, mostly centered around cleaning up the no-instrumentation
logic, instead of the current per debug facility blacklist, use the more generic
.noinstr.text approach, combined with a 'noinstr' marker for functions.

Also add instrumentation_begin()/end() to better manage the exact place in entry
code where instrumentation may be used.

Also add a kprobes blacklist for modules.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

x86_microcode_for_5.8

A single fix for late microcode loading to handle the correct return
value from stop_machine(), from Mihai Carabas.

v5.7

Linux 5.7

x86-urgent-2020-05-31

A pile of x86 fixes:

  - Prevent a memory leak in ioperm which was caused by the stupid
    assumption that the exit cleanup is always called for current, which is
    not the case when fork fails after taking a reference on the ioperm
    bitmap.

  - Fix an arithmething overflow in the DMA code on 32bit systems

  - Fill gaps in the xstate copy with defaults instead of leaving them
    uninitialized

  - Revert: o"Make __X32_SYSCALL_BIT be unsigned long" as it turned out
    that existing user space fails to build.

sched-urgent-2020-05-31

A single scheduler fix preventing a crash in NUMA balancing. The
current->mm check is not reliable as the mm might be temporary
due to use_mm() in a kthread. Check for PF_KTHREAD explictely.

4.4.143-50-rockchip

block-5.7-2020-05-29

block-5.7-2020-05-29

xfs-5.8-merge-8

New code for 5.8:
    - Various cleanups to remove dead code, unnecessary conditionals,
      asserts, etc.
    - Fix a linker warning caused by xfs stuffing '-g' into CFLAGS
      redundantly.
    - Tighten up our dmesg logging to ensure that everything is prefixed
      with 'XFS' for easier grepping.
    - Kill a bunch of typedefs.
    - Refactor the deferred ops code to reduce indirect function calls.
    - Increase type-safety with the deferred ops code.
    - Make the DAX mount options a tri-state.
    - Fix some error handling problems in the inode flush code and clean up
      other inode flush warts.
    - Refactor log recovery so that each log item recovery functions now live
      with the other log item processing code.
    - Fix some SPDX forms.
    - Fix quota counter corruption if the fs crashes after running
      quotacheck but before any dquots get logged.
    - Don't fail metadata verification on zero-entry attr leaf blocks, since
      they're just part of the disk format now due to a historic lack of log
      atomicity.
    - Don't allow SWAPEXT between files with different [ugp]id when quotas
      are enabled.
    - Refactor inode fork reading and verification to run directly from the
      inode-from-disk function.  This means that we now actually guarantee
      that _iget'ted inodes are totally verified and ready to go.
    - Move the incore inode fork format and extent counts to the ifork
      structure.
    - Scalability improvements by reducing cacheline pingponging in
      struct xfs_mount.
    - More scalability improvements by removing m_active_trans from the
      hot path.
    - Fix inode counter update sanity checking to run /only/ on debug
      kernels.
    - Fix longstanding inconsistency in what error code we return when a
      program hits project quota limits (ENOSPC).
    - Fix group quota returning the wrong error code when a program hits
      group quota limits.
    - Fix per-type quota limits and grace periods for group and project
      quotas so that they actually work.
    - Allow extension of individual grace periods.
    - Refactor the non-reclaim inode radix tree walking code to remove a
      bunch of stupid little functions and straighten out the
      inconsistent naming schemes.
    - Fix a bug in speculative preallocation where we measured a new
      allocation based on the last extent mapping in the file instead of
      looking farther for the last contiguous space allocation.
    - Force delalloc writes to unwritten extents.  This closes a
      stale disk contents exposure vector if the system goes down before
      the write completes.
    - More lockdep whackamole.

v5.6.15

This is the 5.6.15 stable release

v5.4.43

This is the 5.4.43 stable release