Commit Graph

1312647 Commits

Author SHA1 Message Date
Linus Torvalds
55db8eb456 - Do the proper memory conversion of guest memory in order to be able to kexec
kernels in SNP guests along with other adjustments and cleanups to that
   effect
 
 - Start converting and moving functionality from the sev-guest driver into
   core code with the purpose of supporting the secure TSC SNP feature where
   the hypervisor cannot influence the TSC exposed to the guest anymore
 
 - Add a "nosnp" cmdline option in order to be able to disable SNP support in
   the hypervisor and thus free-up resources which are not going to be used
 
 - Cleanups
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Merge tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 SEV updates from Borislav Petkov:

 - Do the proper memory conversion of guest memory in order to be able
   to kexec kernels in SNP guests along with other adjustments and
   cleanups to that effect

 - Start converting and moving functionality from the sev-guest driver
   into core code with the purpose of supporting the secure TSC SNP
   feature where the hypervisor cannot influence the TSC exposed to the
   guest anymore

 - Add a "nosnp" cmdline option in order to be able to disable SNP
   support in the hypervisor and thus free-up resources which are not
   going to be used

 - Cleanups

[ Reminding myself about the endless TLA's again: SEV is the AMD Secure
  Encrypted Virtualization    - Linus ]

* tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Cleanup vc_handle_msr()
  x86/sev: Convert shared memory back to private on kexec
  x86/mm: Refactor __set_clr_pte_enc()
  x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP
  virt: sev-guest: Carve out SNP message context structure
  virt: sev-guest: Reduce the scope of SNP command mutex
  virt: sev-guest: Consolidate SNP guest messaging parameters to a struct
  x86/sev: Cache the secrets page address
  x86/sev: Handle failures from snp_init()
  virt: sev-guest: Use AES GCM crypto library
  x86/virt: Provide "nosnp" boot option for sev kernel command line
  x86/virt: Move SEV-specific parsing into arch/x86/virt/svm
2024-11-19 12:21:35 -08:00
Linus Torvalds
9db8b24070 - Replace deprecated PCI functions used in intel-mid
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Merge tag 'x86_platform_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform cleanup from Borislav Petkov:

 - Replace deprecated PCI functions used in intel-mid

* tag 'x86_platform_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/intel-mid: Replace deprecated PCI functions
2024-11-19 12:19:59 -08:00
Linus Torvalds
ab713e7099 - Remove the unconditional cache writeback and invalidation after loading the
microcode patch on Intel as this was addressing a microcode bug for which
   there is a concrete microcode revision check instead
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Merge tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 microcode loader update from Borislav Petkov:

 - Remove the unconditional cache writeback and invalidation after
   loading the microcode patch on Intel as this was addressing a
   microcode bug for which there is a concrete microcode revision check
   instead

* tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/intel: Remove unnecessary cache writeback and invalidation
2024-11-19 12:13:16 -08:00
Linus Torvalds
5a4b3fbb48 - Add support for 6-node sub-NUMA clustering on Intel
- Cleanup
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Merge tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cache resource control updates from Borislav Petkov:

 - Add support for 6-node sub-NUMA clustering on Intel

 - Cleanup

* tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/resctrl: Support Sub-NUMA cluster mode SNC6
  x86/resctrl: Slightly clean-up mbm_config_show()
2024-11-19 12:11:28 -08:00
Linus Torvalds
c1f2ffe207 - Log and handle twp new AMD-specific MCA registers: SYND1 and SYND2 and
report the Field Replaceable Unit text info reported through them
 
 - Add support for handling variable-sized SMCA BERT records
 
 - Add the capability for reporting vendor-specific RAS error info without
   adding vendor-specific fields to struct mce
 
 - Cleanups
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Merge tag 'ras_core_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RAS updates from Borislav Petkov:

 - Log and handle twp new AMD-specific MCA registers: SYND1 and SYND2
   and report the Field Replaceable Unit text info reported through them

 - Add support for handling variable-sized SMCA BERT records

 - Add the capability for reporting vendor-specific RAS error info
   without adding vendor-specific fields to struct mce

 - Cleanups

* tag 'ras_core_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  EDAC/mce_amd: Add support for FRU text in MCA
  x86/mce/apei: Handle variable SMCA BERT record size
  x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers
  tracing: Add __print_dynamic_array() helper
  x86/mce: Add wrapper for struct mce to export vendor specific info
  x86/mce/intel: Use MCG_BANKCNT_MASK instead of 0xff
  x86/mce/mcelog: Use xchg() to get and clear the flags
2024-11-19 12:04:51 -08:00
Linus Torvalds
77286b868f - Add support for Bluefield-2 SOCs to bluefield_edac
- Add support for Intel Panther Lake-H to igen6_edac
 
 - Add polling support to igen6_edac as some Intel M100 chips have trouble with
   error interrupts
 
 - Add Kaby Lake-S support to ie31200_edac
 
 - Fix memory source detection in the SKX common module which is used by
   a couple of Intel EDAC drivers
 
 - Add support for the NXP i.MX9 memory controller to fsl_edac
 
 - The usual fixes and cleanups all over the place
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Merge tag 'edac_updates_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - Add support for Bluefield-2 SOCs to bluefield_edac

 - Add support for Intel Panther Lake-H to igen6_edac

 - Add polling support to igen6_edac as some Intel M100 chips have
   trouble with error interrupts

 - Add Kaby Lake-S support to ie31200_edac

 - Fix memory source detection in the SKX common module which is used by
   a couple of Intel EDAC drivers

 - Add support for the NXP i.MX9 memory controller to fsl_edac

 - The usual fixes and cleanups all over the place

* tag 'edac_updates_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/igen6: Add polling support
  EDAC/igen6: Initialize edac_op_state according to the configuration data
  EDAC/igen6: Avoid segmentation fault on module unload
  EDAC/ie31200: Add Kaby Lake-S dual-core host bridge ID
  MAINTAINERS: Change FSL DDR EDAC maintainership
  EDAC/{skx_common,i10nm}: Fix incorrect far-memory error source indicator
  EDAC/skx_common: Differentiate memory error sources
  EDAC/fsl_ddr: Add support for i.MX9 DDR controller
  dt-bindings: memory: fsl: Add compatible string nxp,imx9-memory-controller
  EDAC/fsl_ddr: Fix bad bit shift operations
  EDAC/fsl_ddr: Move global variables into struct fsl_mc_pdata
  EDAC/fsl_ddr: Pass down fsl_mc_pdata in ddr_in32() and ddr_out32()
  RAS/AMD/ATL: Add debug prints for DF register reads
  EDAC/bluefield: Use Arm SMC for EMI access on BlueField-2
  EDAC/bluefield: Fix potential integer overflow
  EDAC/igen6: Add Intel Panther Lake-H SoCs support
2024-11-19 12:00:10 -08:00
Linus Torvalds
769ca7d4d2 Kernel Concurrency Sanitizer (KCSAN) updates for v6.13
- Fixes to make KCSAN compatible with PREEMPT_RT
 
 - Minor cleanups
 
 All changes have been in linux-next for the past 4 weeks.
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Merge tag 'kcsan-20241112-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux

Pull Kernel Concurrency Sanitizer (KCSAN) updates from Marco Elver:

 - Make KCSAN compatible with PREEMPT_RT

 - Minor cleanup

* tag 'kcsan-20241112-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux:
  kcsan: Remove redundant call of kallsyms_lookup_name()
  kcsan: Turn report_filterlist_lock into a raw_spinlock
2024-11-19 11:44:17 -08:00
Linus Torvalds
8cdf2d1903 RCU pull request for v6.13
SRCU:
 
 	- Introduction of the new SRCU-lite flavour with a new pair of
 	  srcu_read_[un]lock_lite() APIs. In practice the read side using
 	  this flavour becomes lighter by removing a full memory barrier on
 	  LOCK and a full memory barrier on UNLOCK. This comes at the
 	  expense of a higher latency write side with two (in the best case
 	  of a snaphot of unused read-sides) or more RCU grace periods on
 	  the update side which now assumes by itself the whole full
 	  ordering guarantee against the LOCK/UNLOCK counters on both
 	  indexes, along with the accesses performed inside.
 
 	  Uretprobes is a known potential user.
 
 	  Note this doesn't replace the default normal flavour of SRCU which
 	  still behaves the same as usual.
 
 	- Add testing of SRCU-lite through rcutorture and rcuscale
 
 	- Various cleanups on the way.
 
 FIXES:
 
 	- Allow short-circuiting RCU-TASKS-RUDE grace periods on architectures
 	  that have sane noinstr boundaries forbidding tracing on low-level
 	  idle and kernel entry code. RCU-TASKS is enough on such configurations
 	  because it involves an RCU grace period that waits for all idle
 	  tasks to either schedule out voluntarily or enter into RCU
 	  unwatched noinstr code.
 
 	- Allow and test start_poll_synchronize_rcu() with IRQs disabled.
 
 	- Mention rcuog kthreads in relevant documentation and Kconfig help
 
 	- Various fixes and consolidations
 
 RCUTORTURE:
 
 	- Add --no-affinity on tools to leave the affinity setting of guests
 	  up to the user.
 
 	- Add guest_os_delay parameter to rcuscale for better warm-up
 	  control.
 
 	- Fix and improve some rcuscale error handling.
 
 	- Various cleanups and fixes
 
 STALL:
 
 	- Remove dead code
 
 	- Stop dumping tasks if a stalled grace period eventually ended
 	  midway as that only produces confusing output.
 
 	- Optimize detection of stalling CPUs and avoid useless node
 	  locking otherwise.
 
 NOCB:
 
 	- Fix rcu_barrier() hang due to a race against callbacks
 	  deoffloading. This is not yet used, except by rcutorture, and
 	  waits for its promised cpusets interface.
 
 	- Remove leftover function declaration
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Merge tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Frederic Weisbecker:
 "SRCU:

   - Introduction of the new SRCU-lite flavour with a new pair of
     srcu_read_[un]lock_lite() APIs. In practice the read side using
     this flavour becomes lighter by removing a full memory barrier on
     LOCK and a full memory barrier on UNLOCK. This comes at the expense
     of a higher latency write side with two (in the best case of a
     snaphot of unused read-sides) or more RCU grace periods on the
     update side which now assumes by itself the whole full ordering
     guarantee against the LOCK/UNLOCK counters on both indexes, along
     with the accesses performed inside.

     Uretprobes is a known potential user.

     Note this doesn't replace the default normal flavour of SRCU which
     still behaves the same as usual.

   - Add testing of SRCU-lite through rcutorture and rcuscale

   - Various cleanups on the way.

  Fixes:

   - Allow short-circuiting RCU-TASKS-RUDE grace periods on
     architectures that have sane noinstr boundaries forbidding tracing
     on low-level idle and kernel entry code. RCU-TASKS is enough on
     such configurations because it involves an RCU grace period that
     waits for all idle tasks to either schedule out voluntarily or
     enter into RCU unwatched noinstr code.

   - Allow and test start_poll_synchronize_rcu() with IRQs disabled.

   - Mention rcuog kthreads in relevant documentation and Kconfig help

   - Various fixes and consolidations

  rcutorture:

   - Add --no-affinity on tools to leave the affinity setting of guests
     up to the user.

   - Add guest_os_delay parameter to rcuscale for better warm-up
     control.

   - Fix and improve some rcuscale error handling.

   - Various cleanups and fixes

  stall:

   - Remove dead code

   - Stop dumping tasks if a stalled grace period eventually ended
     midway as that only produces confusing output.

   - Optimize detection of stalling CPUs and avoid useless node locking
     otherwise.

  NOCB:

   - Fix rcu_barrier() hang due to a race against callbacks
     deoffloading. This is not yet used, except by rcutorture, and waits
     for its promised cpusets interface.

   - Remove leftover function declaration"

* tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (42 commits)
  rcuscale: Remove redundant WARN_ON_ONCE() splat
  rcuscale: Do a proper cleanup if kfree_scale_init() fails
  srcu: Unconditionally record srcu_read_lock_lite() in ->srcu_reader_flavor
  srcu: Check for srcu_read_lock_lite() across all CPUs
  srcu: Remove smp_mb() from srcu_read_unlock_lite()
  rcutorture: Avoid printing cpu=-1 for no-fault RCU boost failure
  rcuscale: Add guest_os_delay module parameter
  refscale: Correct affinity check
  torture: Add --no-affinity parameter to kvm.sh
  rcu/nocb: Fix missed RCU barrier on deoffloading
  rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
  rcu/srcutiny: don't return before reenabling preemption
  rcu-tasks: Remove open-coded one-byte cmpxchg() emulation
  doc: Remove kernel-parameters.txt entry for rcutorture.read_exit
  rcutorture: Test start-poll primitives with interrupts disabled
  rcu: Permit start_poll_synchronize_rcu*() with interrupts disabled
  rcu: Allow short-circuiting of synchronize_rcu_tasks_rude()
  doc: Add rcuog kthreads to kernel-per-CPU-kthreads.rst
  rcu: Add rcuog kthreads to RCU_NOCB_CPU help text
  rcu: Use the BITS_PER_LONG macro
  ...
2024-11-19 11:27:07 -08:00
Linus Torvalds
2b5d5f23d4 hmon updates for v6.13-rc1
* New drivers
 
   - ISL28022 power monitor
 
   - Nuvoton NCT7363Y
 
 * Added support for new chips to existing drivers
 
   - The tmp180 driver now supports NXP p3t1085, including its I3C mode
 
   - The ina2xx driver now supports SY24655 and INA260
 
   - The amc6821 driver now supports tsd,mule
 
 * Other notable improvements
 
   - The sht4x driver now supports the chip heater
 
   - The pmbus/isl68137 driver now supports a voltage divider on Vout
 
   - The cros_ec driver registers with the thermal framework
 
   - The pmbus/ltc2978 driver now supports LTC7841
 
   - The PMBus core now allow drivers to override WRITE_PROTECT
 
 * Various other minor improvements and cleanups
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Merge tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hmon updates from Guenter Roeck:
 "New drivers:
   - ISL28022 power monitor
   - Nuvoton NCT7363Y

  Added support for new chips to existing drivers:
   - The tmp180 driver now supports NXP p3t1085, including its I3C mode
   - The ina2xx driver now supports SY24655 and INA260
   - The amc6821 driver now supports tsd,mule

  Other notable improvements:
   - The sht4x driver now supports the chip heater
   - The pmbus/isl68137 driver now supports a voltage divider on Vout
   - The cros_ec driver registers with the thermal framework
   - The pmbus/ltc2978 driver now supports LTC7841
   - The PMBus core now allow drivers to override WRITE_PROTECT

  Various other minor improvements and cleanups"

* tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (51 commits)
  hwmon: (pmbus/isl68137) add support for voltage divider on Vout
  dt-bindings: hwmon: isl68137: add bindings to support voltage dividers
  hwmon: tmp108: fix I3C dependency
  hwmon: (cros_ec) register thermal sensors to thermal framework
  hwmon: (tmp108) Add support for I3C device
  hwmon: (tmp108) Add helper function tmp108_common_probe() to prepare I3C support
  hwmon: (acpi_power_meter) Fix fail to load module on platform without _PMD method
  hwmon: (nct6775-core) Fix overflows seen when writing limit attributes
  hwmon: (pwm-fan) Introduce start from stopped state handling
  dt-bindings: hwmon: pwm-fan: Document start from stopped state properties
  hwmon: (tmp108) Add NXP p3t1085 support
  dt-bindings: hwmon: ti,tmp108: Add nxp,p3t1085 compatible string
  hwmon: (sch5627, max31827) Fix typos in driver documentation
  hwmon: (jc42) Drop of_match_ptr() protection
  hwmon: (f71882fg) Fix grammar in fan speed trip points explanation
  dt-bindings: hwmon: pmbus: add ti tps25990 support
  hwmon: (pmbus/core) clear faults after setting smbalert mask
  hwmon: (pmbus/core) allow drivers to override WRITE_PROTECT
  hwmon: (pmbus) add documentation for existing flags
  hwmon: (ina226) Add support for SY24655
  ...
2024-11-19 11:23:52 -08:00
Linus Torvalds
4e9ad033b4 ACPI updates for 6.13-rc1
- Fix _CPC register setting issue for registers located in memory in
    the ACPI CPPC library code (Lifeng Zheng).
 
  - Use DEFINE_SIMPLE_DEV_PM_OPS in the ACPI battery driver, make it use
    devm_ for initializing mutexes and allocating driver data, and make
    it check the register_pm_notifier() return value (Thomas Weißschuh,
    Andy Shevchenko).
 
  - Make the ACPI EC driver support compile-time conditional and allow
    ACPI to be built without CONFIG_HAS_IOPORT (Arnd Bergmann).
 
  - Remove a redundant error check from the pfr_telemetry driver (Colin
    Ian King).
 
  - Rearrange the processor_perflib code in the ACPI processor driver
    to avoid compiling x86-specific code on other architectures (Arnd
    Bergmann).
 
  - Add adev NULL check to acpi_quirk_skip_serdev_enumeration() and
    make UART skip quirks work on PCI UARTs without an UID (Hans de
    Goede).
 
  - Force native backlight handling Apple MacbookPro11,2 and Air7,2 in
    the ACPI video driver (Jonathan Denose).
 
  - Switch several ACPI platform drivers back to using struct
    platform_driver::remove() (Uwe Kleine-König).
 
  - Replace strcpy() with strscpy() in multiple places in the ACPI
    subsystem (Muhammad Qasim Abdul Majeed, Abdul Rahim).
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Merge tag 'acpi-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These include a couple of fixes, a new ACPI backlight quirk for Apple
  MacbookPro11,2 and Air7,2 and a bunch of cleanups:

   - Fix _CPC register setting issue for registers located in memory in
     the ACPI CPPC library code (Lifeng Zheng)

   - Use DEFINE_SIMPLE_DEV_PM_OPS in the ACPI battery driver, make it
     use devm_ for initializing mutexes and allocating driver data, and
     make it check the register_pm_notifier() return value (Thomas
     Weißschuh, Andy Shevchenko)

   - Make the ACPI EC driver support compile-time conditional and allow
     ACPI to be built without CONFIG_HAS_IOPORT (Arnd Bergmann)

   - Remove a redundant error check from the pfr_telemetry driver (Colin
     Ian King)

   - Rearrange the processor_perflib code in the ACPI processor driver
     to avoid compiling x86-specific code on other architectures (Arnd
     Bergmann)

   - Add adev NULL check to acpi_quirk_skip_serdev_enumeration() and
     make UART skip quirks work on PCI UARTs without an UID (Hans de
     Goede)

   - Force native backlight handling Apple MacbookPro11,2 and Air7,2 in
     the ACPI video driver (Jonathan Denose)

   - Switch several ACPI platform drivers back to using struct
     platform_driver::remove() (Uwe Kleine-König)

   - Replace strcpy() with strscpy() in multiple places in the ACPI
     subsystem (Muhammad Qasim Abdul Majeed, Abdul Rahim)"

* tag 'acpi-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
  ACPI: video: force native for Apple MacbookPro11,2 and Air7,2
  ACPI: CPPC: Fix _CPC register setting issue
  ACPI: Switch back to struct platform_driver::remove()
  ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()
  ACPI: x86: Make UART skip quirks work on PCI UARTs without an UID
  ACPI: allow building without CONFIG_HAS_IOPORT
  ACPI: processor_perflib: extend X86 dependency
  ACPI: scan: Use strscpy() instead of strcpy()
  ACPI: SBSHC: Use strscpy() instead of strcpy()
  ACPI: SBS: Use strscpy() instead of strcpy()
  ACPI: power: Use strscpy() instead of strcpy()
  ACPI: pci_root: Use strscpy() instead of strcpy()
  ACPI: pci_link: Use strscpy() instead of strcpy()
  ACPI: event: Use strscpy() instead of strcpy()
  ACPI: EC: Use strscpy() instead of strcpy()
  ACPI: APD: Use strscpy() instead of strcpy()
  ACPI: thermal: Use strscpy() instead of strcpy()
  ACPI: battery: Check for error code from devm_mutex_init() call
  ACPI: EC: make EC support compile-time conditional
  ACPI: pfr_telemetry: remove redundant error check on ret
  ...
2024-11-19 11:17:53 -08:00
Linus Torvalds
cd7fa3e1b0 Thermal control updates for 6.13-rc1
- Add support for thermal thresholds that can be added and removed from
    user space via netlink along with a related library update (Daniel
    Lezcano).
 
  - Fix thermal zone initialization, suspend/resume and exit
    synchronization issues (Rafael Wysocki).
 
  - Rearrange locking in the thermal core to use guards (Rafael Wysocki).
 
  - Make the code handling thermal zone temperature updates use sorted
    lists of trip points to reduce the number of trip points table walks
    in the thermal core (Rafael Wysocki).
 
  - Fix and clean up the thermal testing facility code (Rafael Wysocki).
 
  - Fix a Power Allocator thermal governor issue (ZhengShaobo).
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Merge tag 'thermal-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "These are thermal core changes, including the addition of support for
  temperature thresholds that can be set from user space, fixes related
  to thermal zone initialization, suspend/resume and exit, locking
  rework and rearrangement of the code handling thermal zone temperature
  updates.

  Specifics:

   - Add support for thermal thresholds that can be added and removed
     from user space via netlink along with a related library update
     (Daniel Lezcano)

   - Fix thermal zone initialization, suspend/resume and exit
     synchronization issues (Rafael Wysocki)

   - Rearrange locking in the thermal core to use guards (Rafael
     Wysocki)

   - Make the code handling thermal zone temperature updates use sorted
     lists of trip points to reduce the number of trip points table
     walks in the thermal core (Rafael Wysocki)

   - Fix and clean up the thermal testing facility code (Rafael Wysocki)

   - Fix a Power Allocator thermal governor issue (ZhengShaobo)"

* tag 'thermal-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (45 commits)
  thermal: testing: Initialize some variables annoteded with _free()
  thermal: testing: Use DEFINE_FREE() and __free() to simplify code
  thermal: testing: Simplify tt_get_tt_zone()
  thermal: gov_power_allocator: Granted power set to max when nobody request power
  thermal: core: Relocate thermal zone initialization routine
  thermal: core: Use trip lists for trip crossing detection
  thermal: core: Eliminate thermal_zone_trip_down()
  thermal: core: Relocate functions that update trip points
  thermal: core: Move some trip processing to thermal_trip_crossed()
  thermal: core: Pass trip descriptor to thermal_trip_crossed()
  thermal: core: Rearrange __thermal_zone_device_update()
  thermal: core: Prepare for moving trips between sorted lists
  thermal: core: Rename trip list node in struct thermal_trip_desc
  thermal: core: Build sorted lists instead of sorting them later
  thermal/lib: Fix memory leak on error in thermal_genl_auto()
  thermal: thresholds: Fix thermal lock annotation issue
  tools/thermal/thermal-engine: Take into account the thresholds API
  tools/lib/thermal: Add the threshold netlink ABI
  tools/lib/thermal: Make more generic the command encoding function
  thermal: netlink: Add the commands and the events for the thresholds
  ...
2024-11-19 11:15:40 -08:00
Linus Torvalds
ad52c55e1d Power management updates for 6.13-rc1
- Update the amd-pstate driver to set the initial scaling frequency
    policy lower bound to be the lowest non-linear frequency (Dhananjay
    Ugwekar).
 
  - Enable amd-pstate by default on servers starting with newer AMD Epyc
    processors (Swapnil Sapkal).
 
  - Align more codepaths between shared memory and MSR designs in
    amd-pstate (Dhananjay Ugwekar).
 
  - Clean up amd-pstate code to rename functions and remove redundant
    calls (Dhananjay Ugwekar, Mario Limonciello).
 
  - Do other assorted fixes and cleanups in amd-pstate (Dhananjay Ugwekar
    and Mario Limonciello).
 
  - Change the Balance-performance EPP value for Granite Rapids in the
    intel_pstate driver to a more performance-biased one (Srinivas
    Pandruvada).
 
  - Simplify MSR read on the boot CPU in the ACPI cpufreq driver (Chang
    S. Bae).
 
  - Ensure sugov_eas_rebuild_sd() is always called when sugov_init()
    succeeds to always enforce sched domains rebuild in case EAS needs
    to be enabled (Christian Loehle).
 
  - Switch cpufreq back to platform_driver::remove() (Uwe Kleine-König).
 
  - Use proper frequency unit names in cpufreq (Marcin Juszkiewicz).
 
  - Add a built-in idle states table for Granite Rapids Xeon D to the
    intel_idle driver (Artem Bityutskiy).
 
  - Fix some typos in comments in the cpuidle core and drivers (Shen
    Lichuan).
 
  - Remove iowait influence from the menu cpuidle governor (Christian
    Loehle).
 
  - Add min/max available performance state limits to the Energy Model
    management code (Lukasz Luba).
 
  - Update pm-graph to v5.13 (Todd Brandt).
 
  - Add documentation for some recently introduced cpupower utility
    options (Tor Vic).
 
  - Make cpupower inform users where cpufreq-bench.conf should be located
    when opening it fails (Peng Fan).
 
  - Allow overriding cross-compiling env params in cpupower (Peng Fan).
 
  - Add compile_commands.json to .gitignore in cpupower (John B. Wyatt
    IV).
 
  - Improve disable c_state block in cpupower bindings and add a test to
    confirm that CPU state is disabled to it (John B. Wyatt IV).
 
  - Add Chinese Simplified translation to cpupower (Kieran Moy).
 
  - Add checks for xgettext and msgfmt to cpupower (Siddharth Menon).
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Merge tag 'pm-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "The amd-pstate cpufreq driver gets the majority of changes this time.
  They are mostly fixes and cleanups, but one of them causes it to
  become the default cpufreq driver on some AMD server platforms.

  Apart from that, the menu cpuidle governor is modified to not use
  iowait any more, the intel_idle gets a custom C-states table for
  Granite Rapids Xeon D, and the intel_pstate driver will use a more
  aggressive Balance- performance default EPP value on Granite Rapids
  now.

  There are also some fixes, cleanups and tooling updates.

  Specifics:

   - Update the amd-pstate driver to set the initial scaling frequency
     policy lower bound to be the lowest non-linear frequency (Dhananjay
     Ugwekar)

   - Enable amd-pstate by default on servers starting with newer AMD
     Epyc processors (Swapnil Sapkal)

   - Align more codepaths between shared memory and MSR designs in
     amd-pstate (Dhananjay Ugwekar)

   - Clean up amd-pstate code to rename functions and remove redundant
     calls (Dhananjay Ugwekar, Mario Limonciello)

   - Do other assorted fixes and cleanups in amd-pstate (Dhananjay
     Ugwekar and Mario Limonciello)

   - Change the Balance-performance EPP value for Granite Rapids in the
     intel_pstate driver to a more performance-biased one (Srinivas
     Pandruvada)

   - Simplify MSR read on the boot CPU in the ACPI cpufreq driver (Chang
     S. Bae)

   - Ensure sugov_eas_rebuild_sd() is always called when sugov_init()
     succeeds to always enforce sched domains rebuild in case EAS needs
     to be enabled (Christian Loehle)

   - Switch cpufreq back to platform_driver::remove() (Uwe Kleine-König)

   - Use proper frequency unit names in cpufreq (Marcin Juszkiewicz)

   - Add a built-in idle states table for Granite Rapids Xeon D to the
     intel_idle driver (Artem Bityutskiy)

   - Fix some typos in comments in the cpuidle core and drivers (Shen
     Lichuan)

   - Remove iowait influence from the menu cpuidle governor (Christian
     Loehle)

   - Add min/max available performance state limits to the Energy Model
     management code (Lukasz Luba)

   - Update pm-graph to v5.13 (Todd Brandt)

   - Add documentation for some recently introduced cpupower utility
     options (Tor Vic)

   - Make cpupower inform users where cpufreq-bench.conf should be
     located when opening it fails (Peng Fan)

   - Allow overriding cross-compiling env params in cpupower (Peng Fan)

   - Add compile_commands.json to .gitignore in cpupower (John B. Wyatt
     IV)

   - Improve disable c_state block in cpupower bindings and add a test
     to confirm that CPU state is disabled to it (John B. Wyatt IV)

   - Add Chinese Simplified translation to cpupower (Kieran Moy)

   - Add checks for xgettext and msgfmt to cpupower (Siddharth Menon)"

* tag 'pm-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (38 commits)
  cpufreq: intel_pstate: Update Balance-performance EPP for Granite Rapids
  cpufreq: ACPI: Simplify MSR read on the boot CPU
  sched/cpufreq: Ensure sd is rebuilt for EAS check
  intel_idle: add Granite Rapids Xeon D support
  PM: EM: Add min/max available performance state limits
  cpufreq/amd-pstate: Move registration after static function call update
  cpufreq/amd-pstate: Push adjust_perf vfunc init into cpu_init
  cpufreq/amd-pstate: Align offline flow of shared memory and MSR based systems
  cpufreq/amd-pstate: Call cppc_set_epp_perf in the reenable function
  cpufreq/amd-pstate: Do not attempt to clear MSR_AMD_CPPC_ENABLE
  cpufreq/amd-pstate: Rename functions that enable CPPC
  cpufreq/amd-pstate-ut: Add fix for min freq unit test
  amd-pstate: Switch to amd-pstate by default on some Server platforms
  amd-pstate: Set min_perf to nominal_perf for active mode performance gov
  cpufreq/amd-pstate: Remove the redundant amd_pstate_set_driver() call
  cpufreq/amd-pstate: Remove the switch case in amd_pstate_init()
  cpufreq/amd-pstate: Call amd_pstate_set_driver() in amd_pstate_register_driver()
  cpufreq/amd-pstate: Call amd_pstate_register() in amd_pstate_init()
  cpufreq/amd-pstate: Set the initial min_freq to lowest_nonlinear_freq
  cpufreq/amd-pstate: Remove the redundant verify() function
  ...
2024-11-19 11:05:00 -08:00
Linus Torvalds
8a7fa81137 Random number generator updates for Linux 6.13-rc1.
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Merge tag 'random-6.13-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull random number generator updates from Jason Donenfeld:
 "This contains a single series from Uros to replace uses of
  <linux/random.h> with prandom.h or other more specific headers
  as needed, in order to avoid a circular header issue.

  Uros' goal is to be able to use percpu.h from prandom.h, which
  will then allow him to define __percpu in percpu.h rather than
  in compiler_types.h"

* tag 'random-6.13-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  prandom: Include <linux/percpu.h> in <linux/prandom.h>
  random: Do not include <linux/prandom.h> in <linux/random.h>
  netem: Include <linux/prandom.h> in sch_netem.c
  lib/test_scanf: Include <linux/prandom.h> instead of <linux/random.h>
  lib/test_parman: Include <linux/prandom.h> instead of <linux/random.h>
  bpf/tests: Include <linux/prandom.h> instead of <linux/random.h>
  lib/rbtree-test: Include <linux/prandom.h> instead of <linux/random.h>
  random32: Include <linux/prandom.h> instead of <linux/random.h>
  kunit: string-stream-test: Include <linux/prandom.h>
  lib/interval_tree_test.c: Include <linux/prandom.h> instead of <linux/random.h>
  bpf: Include <linux/prandom.h> instead of <linux/random.h>
  scsi: libfcoe: Include <linux/prandom.h> instead of <linux/random.h>
  fscrypt: Include <linux/once.h> in fs/crypto/keyring.c
  mtd: tests: Include <linux/prandom.h> instead of <linux/random.h>
  media: vivid: Include <linux/prandom.h> in vivid-vid-cap.c
  drm/lib: Include <linux/prandom.h> instead of <linux/random.h>
  drm/i915/selftests: Include <linux/prandom.h> instead of <linux/random.h>
  crypto: testmgr: Include <linux/prandom.h> instead of <linux/random.h>
  x86/kaslr: Include <linux/prandom.h> instead of <linux/random.h>
2024-11-19 10:43:44 -08:00
Linus Torvalds
02b2f1a7b8 This update includes the following changes:
API:
 
 - Add sig driver API.
 - Remove signing/verification from akcipher API.
 - Move crypto_simd_disabled_for_test to lib/crypto.
 - Add WARN_ON for return values from driver that indicates memory corruption.
 
 Algorithms:
 
 - Provide crc32-arch and crc32c-arch through Crypto API.
 - Optimise crc32c code size on x86.
 - Optimise crct10dif on arm/arm64.
 - Optimise p10-aes-gcm on powerpc.
 - Optimise aegis128 on x86.
 - Output full sample from test interface in jitter RNG.
 - Retry without padata when it fails in pcrypt.
 
 Drivers:
 
 - Add support for Airoha EN7581 TRNG.
 - Add support for STM32MP25x platforms in stm32.
 - Enable iproc-r200 RNG driver on BCMBCA.
 - Add Broadcom BCM74110 RNG driver.
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Merge tag 'v6.13-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:
   - Add sig driver API
   - Remove signing/verification from akcipher API
   - Move crypto_simd_disabled_for_test to lib/crypto
   - Add WARN_ON for return values from driver that indicates memory
     corruption

  Algorithms:
   - Provide crc32-arch and crc32c-arch through Crypto API
   - Optimise crc32c code size on x86
   - Optimise crct10dif on arm/arm64
   - Optimise p10-aes-gcm on powerpc
   - Optimise aegis128 on x86
   - Output full sample from test interface in jitter RNG
   - Retry without padata when it fails in pcrypt

  Drivers:
   - Add support for Airoha EN7581 TRNG
   - Add support for STM32MP25x platforms in stm32
   - Enable iproc-r200 RNG driver on BCMBCA
   - Add Broadcom BCM74110 RNG driver"

* tag 'v6.13-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (112 commits)
  crypto: marvell/cesa - fix uninit value for struct mv_cesa_op_ctx
  crypto: cavium - Fix an error handling path in cpt_ucode_load_fw()
  crypto: aesni - Move back to module_init
  crypto: lib/mpi - Export mpi_set_bit
  crypto: aes-gcm-p10 - Use the correct bit to test for P10
  hwrng: amd - remove reference to removed PPC_MAPLE config
  crypto: arm/crct10dif - Implement plain NEON variant
  crypto: arm/crct10dif - Macroify PMULL asm code
  crypto: arm/crct10dif - Use existing mov_l macro instead of __adrl
  crypto: arm64/crct10dif - Remove remaining 64x64 PMULL fallback code
  crypto: arm64/crct10dif - Use faster 16x64 bit polynomial multiply
  crypto: arm64/crct10dif - Remove obsolete chunking logic
  crypto: bcm - add error check in the ahash_hmac_init function
  crypto: caam - add error check to caam_rsa_set_priv_key_form
  hwrng: bcm74110 - Add Broadcom BCM74110 RNG driver
  dt-bindings: rng: add binding for BCM74110 RNG
  padata: Clean up in padata_do_multithreaded()
  crypto: inside-secure - Fix the return value of safexcel_xcbcmac_cra_init()
  crypto: qat - Fix missing destroy_workqueue in adf_init_aer()
  crypto: rsassa-pkcs1 - Reinstate support for legacy protocols
  ...
2024-11-19 10:28:41 -08:00
Linus Torvalds
1af29b34ea chrome platform firmware changes for 6.13
* Fixes
 
   - Do not double register "simple-framebuffer" platform device if
     Generic System Framebuffers (sysfb) already did that.
   - Fix a missing of unregistering platform driver in error handling
     path.
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Merge tag 'chrome-platform-firmware-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform firmware updates from Tzung-Bi Shih:

 - Do not double register "simple-framebuffer" platform device if
   Generic System Framebuffers (sysfb) already did that

 - Fix a missing of unregistering platform driver in error handling path

* tag 'chrome-platform-firmware-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  firmware: google: Unregister driver_info on failure
  firmware: coreboot: Don't register a pdev if screen_info data is present
  firmware: sysfb: Add a sysfb_handles_screen_info() helper function
2024-11-19 10:25:47 -08:00
Linus Torvalds
78516f4aef chrome platform changes for 6.13
* Fixes
 
   - Fix a leak of fwnode refcount.
 
 * Cleanups
 
   - Drop unused I2C driver data.
   - Move back from platform_driver::remove_new() to
     platform_driver::remove().
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Merge tag 'chrome-platform-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Tzung-Bi Shih:
 "Fixes:
   - Fix a leak of fwnode refcount.

  Cleanups:
   - Drop unused I2C driver data
   - Move back from platform_driver::remove_new() to
     platform_driver::remove()"

* tag 'chrome-platform-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: Switch back to struct platform_driver::remove()
  platform/chrome: cros_ec_typec: fix missing fwnode reference decrement
  platform/chrome: Drop explicit initialization of struct i2c_device_id::driver_data to 0
2024-11-19 10:24:12 -08:00
Linus Torvalds
311e062ad5 CSD-lock diagnostic updates for v6.13
This commit switches from sched_clock() to ktime_get_mono_fast_ns(), which
 on x86 switches from the rdtsc instruction to the rdtscp instruction,
 thus avoiding instruction reorderings that cause false-positive reports
 of CSD-lock stalls of almost 2^46 nanoseconds.  These false positives
 are rare, but really are seen in the wild.
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Merge tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull CSD-lock update from Paul McKenney:
 "This switches from sched_clock() to ktime_get_mono_fast_ns(), which on
  x86 switches from the rdtsc instruction to the rdtscp instruction,
  thus avoiding instruction reorderings that cause false-positive
  reports of CSD-lock stalls of almost 2^46 nanoseconds. These false
  positives are rare, but really are seen in the wild"

* tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  locking/csd-lock: Switch from sched_clock() to ktime_get_mono_fast_ns()
2024-11-19 10:18:45 -08:00
Linus Torvalds
d7d4102f0a scftorture changes for v6.13
o	Avoid divide operation.
 
 o	Fix cleanup code waiting for IPI handlers.
 
 o	Move memory allocations out of preempt-disable region of code
 	for PREEMPT_RT compatibility.
 
 o	Use a lockless list to avoid freeing memory while interrupts
 	are disabled, again for PREEMPT_RT compatibility.
 
 o	Make lockless list scf_add_to_free_list() correctly handle
 	freeing a NULL pointer.
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Merge tag 'scftorture.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull scftorture updates from Paul McKenney:

 - Avoid divide operation

 - Fix cleanup code waiting for IPI handlers

 - Move memory allocations out of preempt-disable region of code for
   PREEMPT_RT compatibility

 - Use a lockless list to avoid freeing memory while interrupts are
   disabled, again for PREEMPT_RT compatibility

 - Make lockless list scf_add_to_free_list() correctly handle freeing a
   NULL pointer

* tag 'scftorture.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  scftorture: Handle NULL argument passed to scf_add_to_free_list().
  scftorture: Use a lock-less list to free memory.
  scftorture: Move memory allocation outside of preempt_disable region.
  scftorture: Wait until scf_cleanup_handler() completes.
  scftorture: Avoid additional div operation.
2024-11-19 10:16:59 -08:00
Linus Torvalds
26c9fdd6f3 nolibc changes for 6.13
Changes
 -------
 
 * Fix potential error due to missing #include on s390
 * Compatibility with -Wmissing-fallthrough
 * Run qemu with more memory during tests
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Merge tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull nolibc updates from Paul McKenney:

 - Fix potential error due to missing #include on s390

 - Compatibility with -Wmissing-fallthrough

 - Run qemu with more memory during tests

* tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  selftests/nolibc: start qemu with 1 GiB of memory
  tools/nolibc: compiler: add macro __nolibc_fallthrough
  tools/nolibc: s390: include std.h
2024-11-19 10:13:53 -08:00
Linus Torvalds
158f238aa6 xen: branch for v6.13-rc1
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Merge tag 'for-linus-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - a series for booting as a PVH guest, doing some cleanups after the
   previous work to make PVH boot code position independent

 - a fix of the xenbus driver avoiding a leak in an error case

* tag 'for-linus-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: Fix the issue of resource not being properly released in xenbus_dev_probe()
  x86/pvh: Avoid absolute symbol references in .head.text
  x86/xen: Avoid relocatable quantities in Xen ELF notes
  x86/pvh: Omit needless clearing of phys_base
  x86/pvh: Use correct size value in GDT descriptor
  x86/pvh: Call C code via the kernel virtual mapping
2024-11-18 18:26:57 -08:00
Linus Torvalds
ba1f9c8fe3 arm64 updates for 6.13:
* Support for running Linux in a protected VM under the Arm Confidential
   Compute Architecture (CCA)
 
 * Guarded Control Stack user-space support. Current patches follow the
   x86 ABI of implicitly creating a shadow stack on clone(). Subsequent
   patches (already on the list) will add support for clone3() allowing
   finer-grained control of the shadow stack size and placement from libc
 
 * AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are
   getting close with the upcoming dpISA support)
 
 * Other arch features:
 
   - In-kernel use of the memcpy instructions, FEAT_MOPS (previously only
     exposed to user; uaccess support not merged yet)
 
   - MTE: hugetlbfs support and the corresponding kselftests
 
   - Optimise CRC32 using the PMULL instructions
 
   - Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG
 
   - Optimise the kernel TLB flushing to use the range operations
 
   - POE/pkey (permission overlays): further cleanups after bringing the
     signal handler in line with the x86 behaviour for 6.12
 
 * arm64 perf updates:
 
   - Support for the NXP i.MX91 PMU in the existing IMX driver
 
   - Support for Ampere SoCs in the Designware PCIe PMU driver
 
   - Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC
 
   - Support for Samsung's 'Mongoose' CPU PMU
 
   - Support for PMUv3.9 finer-grained userspace counter access control
 
   - Switch back to platform_driver::remove() now that it returns 'void'
 
   - Add some missing events for the CXL PMU driver
 
 * Miscellaneous arm64 fixes/cleanups:
 
   - Page table accessors cleanup: type updates, drop unused macros,
     reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity
     check addresses before runtime P4D/PUD folding
 
   - Command line override for ID_AA64MMFR0_EL1.ECV (advertising the
     FEAT_ECV for the generic timers) allowing Linux to boot with
     firmware deployments that don't set SCTLR_EL3.ECVEn
 
   - ACPI/arm64: tighten the check for the array of platform timer
     structures and adjust the error handling procedure in
     gtdt_parse_timer_block()
 
   - Optimise the cache flush for the uprobes xol slot (skip if no
     change) and other uprobes/kprobes cleanups
 
   - Fix the context switching of tpidrro_el0 when kpti is enabled
 
   - Dynamic shadow call stack fixes
 
   - Sysreg updates
 
   - Various arm64 kselftest improvements
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Catalin Marinas:

 - Support for running Linux in a protected VM under the Arm
   Confidential Compute Architecture (CCA)

 - Guarded Control Stack user-space support. Current patches follow the
   x86 ABI of implicitly creating a shadow stack on clone(). Subsequent
   patches (already on the list) will add support for clone3() allowing
   finer-grained control of the shadow stack size and placement from
   libc

 - AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are
   getting close with the upcoming dpISA support)

 - Other arch features:

     - In-kernel use of the memcpy instructions, FEAT_MOPS (previously
       only exposed to user; uaccess support not merged yet)

     - MTE: hugetlbfs support and the corresponding kselftests

     - Optimise CRC32 using the PMULL instructions

     - Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG

     - Optimise the kernel TLB flushing to use the range operations

     - POE/pkey (permission overlays): further cleanups after bringing
       the signal handler in line with the x86 behaviour for 6.12

 - arm64 perf updates:

     - Support for the NXP i.MX91 PMU in the existing IMX driver

     - Support for Ampere SoCs in the Designware PCIe PMU driver

     - Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC

     - Support for Samsung's 'Mongoose' CPU PMU

     - Support for PMUv3.9 finer-grained userspace counter access
       control

     - Switch back to platform_driver::remove() now that it returns
       'void'

     - Add some missing events for the CXL PMU driver

 - Miscellaneous arm64 fixes/cleanups:

     - Page table accessors cleanup: type updates, drop unused macros,
       reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity
       check addresses before runtime P4D/PUD folding

     - Command line override for ID_AA64MMFR0_EL1.ECV (advertising the
       FEAT_ECV for the generic timers) allowing Linux to boot with
       firmware deployments that don't set SCTLR_EL3.ECVEn

     - ACPI/arm64: tighten the check for the array of platform timer
       structures and adjust the error handling procedure in
       gtdt_parse_timer_block()

     - Optimise the cache flush for the uprobes xol slot (skip if no
       change) and other uprobes/kprobes cleanups

     - Fix the context switching of tpidrro_el0 when kpti is enabled

     - Dynamic shadow call stack fixes

     - Sysreg updates

     - Various arm64 kselftest improvements

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (168 commits)
  arm64: tls: Fix context-switching of tpidrro_el0 when kpti is enabled
  kselftest/arm64: Try harder to generate different keys during PAC tests
  kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all()
  arm64/ptrace: Clarify documentation of VL configuration via ptrace
  kselftest/arm64: Corrupt P0 in the irritator when testing SSVE
  acpi/arm64: remove unnecessary cast
  arm64/mm: Change protval as 'pteval_t' in map_range()
  kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c
  kselftest/arm64: Add FPMR coverage to fp-ptrace
  kselftest/arm64: Expand the set of ZA writes fp-ptrace does
  kselftets/arm64: Use flag bits for features in fp-ptrace assembler code
  kselftest/arm64: Enable build of PAC tests with LLVM=1
  kselftest/arm64: Check that SVCR is 0 in signal handlers
  selftests/mm: Fix unused function warning for aarch64_write_signal_pkey()
  kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests
  kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test
  kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests
  kselftest/arm64: Fix build with stricter assemblers
  arm64/scs: Drop unused prototype __pi_scs_patch_vmlinux()
  arm64/scs: Deal with 64-bit relative offsets in FDE frames
  ...
2024-11-18 18:10:37 -08:00
Linus Torvalds
9aa4c37f71 m68k updates for v6.13
- Revive SCSI and early console support on MVME147,
   - Fix early kernel parameters using static keys,
   - Prevent and improve handling of kernel configurations that lack
     specific platform, CPU, or MMU support, to avoid build failures,
   - Miscellaneous fixes and improvements,
   - Defconfig updates.
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Merge tag 'm68k-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Revive SCSI and early console support on MVME147

 - Fix early kernel parameters using static keys

 - Prevent and improve handling of kernel configurations that lack
   specific platform, CPU, or MMU support, to avoid build failures

 - Miscellaneous fixes and improvements

 - Defconfig updates

* tag 'm68k-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: defconfig: Update defconfigs for v6.12-rc1
  m68k: mvme147: Reinstate early console
  m68k: Make sure NR_IRQS is never zero
  m68k: Select M68020 as fallback for classic
  m68k: Move Sun 3 into a top-level platform option
  m68k: kernel: Use str_read_write() helper function
  m68k: Initialize jump labels early during setup_arch()
  m68k: mvme147: Fix SCSI controller IRQ numbers
  m68k: mvme147: Make mvme147_sched_init() __init
2024-11-18 18:00:18 -08:00
Linus Torvalds
ae4336e20b just cleanups and fixes
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Merge tag 'mips_6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:
 "Just cleanups and fixes"

* tag 'mips_6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: dts: realtek: Add I2C controllers
  mips: dts: realtek: Add syscon-reboot node
  MIPS: loongson3_defconfig: Enable blk_dev_nvme by default
  MIPS: loongson3_defconfig: Update configs dependencies
  MAINTAINERS: Remove linux-mips.org references
  MAINTAINERS: Retire Ralf Baechle
  TC: Fix the wrong format specifier
  MIPS: kernel: proc: Use str_yes_no() helper function
  MIPS: mobileye: eyeq6h-epm6: Use eyeq6h in the board device tree
  mips: bmips: bcm6358/6368: define required brcm,bmips-cbr-reg
  MIPS: Allow using more than 32-bit addresses for reset vectors when possible
  mips: asm: fix warning when disabling MIPS_FP_SUPPORT
  mips: sgi-ip22: Replace "s[n]?printf" with sysfs_emit in sysfs callbacks
2024-11-18 17:48:39 -08:00
Linus Torvalds
0338cd9c22 s390 updates for 6.13 merge window
- Add firmware sysfs interface which allows user space to retrieve the dump
   area size of the machine
 
 - Add 'measurement_chars_full' CHPID sysfs attribute to make the complete
   associated Channel-Measurements Characteristics Block available
 
 - Add virtio-mem support
 
 - Move gmap aka KVM page fault handling from the main fault handler to KVM
   code. This is the first step to make s390 KVM page fault handling similar
   to other architectures. With this first step the main fault handler does
   not have any special handling anymore, and therefore convert it to
   support LOCK_MM_AND_FIND_VMA
 
 - With gcc 14 s390 support for flag output operand support for inline
   assemblies was added. This allows for several optimizations
 
   - Provide a cmpxchg inline assembly which makes use of this, and provide
     all variants of arch_try_cmpxchg() so that the compiler can generate
     slightly better code
 
   - Convert a few cmpxchg() loops to try_cmpxchg() loops
 
   - Similar to x86 add a CC_OUT() helper macro (and other macros), and
     convert all inline assemblies to make use of them, so that depending on
     compiler version better code can be generated
 
 - List installed host-key hashes in sysfs if the machine supports the Query
   Ultravisor Keys UVC
 
 - Add 'Retrieve Secret' ioctl which allows user space in protected
   execution guests to retrieve previously stored secrets from the
   Ultravisor
 
 - Add pkey-uv module which supports the conversion of Ultravisor
   retrievable secrets to protected keys
 
 - Extend the existing paes cipher to exploit the full AES-XTS hardware
   acceleration introduced with message-security assist extension 10
 
 - Convert hopefully all sysfs show functions to use sysfs_emit() so that
   the constant flow of such patches stop
 
 - For PCI devices make use of the newly added Topology ID attribute to
   enable whole card multi-function support despite the change to PCHID per
   port. Additionally improve the overall robustness and usability of
   the multifunction support
 
 - Various other small improvements, fixes, and cleanups
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Merge tag 's390-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add firmware sysfs interface which allows user space to retrieve the
   dump area size of the machine

 - Add 'measurement_chars_full' CHPID sysfs attribute to make the
   complete associated Channel-Measurements Characteristics Block
   available

 - Add virtio-mem support

 - Move gmap aka KVM page fault handling from the main fault handler to
   KVM code. This is the first step to make s390 KVM page fault handling
   similar to other architectures. With this first step the main fault
   handler does not have any special handling anymore, and therefore
   convert it to support LOCK_MM_AND_FIND_VMA

 - With gcc 14 s390 support for flag output operand support for inline
   assemblies was added. This allows for several optimizations:

     - Provide a cmpxchg inline assembly which makes use of this, and
       provide all variants of arch_try_cmpxchg() so that the compiler
       can generate slightly better code

     - Convert a few cmpxchg() loops to try_cmpxchg() loops

     - Similar to x86 add a CC_OUT() helper macro (and other macros),
       and convert all inline assemblies to make use of them, so that
       depending on compiler version better code can be generated

 - List installed host-key hashes in sysfs if the machine supports the
   Query Ultravisor Keys UVC

 - Add 'Retrieve Secret' ioctl which allows user space in protected
   execution guests to retrieve previously stored secrets from the
   Ultravisor

 - Add pkey-uv module which supports the conversion of Ultravisor
   retrievable secrets to protected keys

 - Extend the existing paes cipher to exploit the full AES-XTS hardware
   acceleration introduced with message-security assist extension 10

 - Convert hopefully all sysfs show functions to use sysfs_emit() so
   that the constant flow of such patches stop

 - For PCI devices make use of the newly added Topology ID attribute to
   enable whole card multi-function support despite the change to PCHID
   per port. Additionally improve the overall robustness and usability
   of the multifunction support

 - Various other small improvements, fixes, and cleanups

* tag 's390-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (133 commits)
  s390/cio/ioasm: Convert to use flag output macros
  s390/cio/qdio: Convert to use flag output macros
  s390/sclp: Convert to use flag output macros
  s390/dasd: Convert to use flag output macros
  s390/boot/physmem: Convert to use flag output macros
  s390/pci: Convert to use flag output macros
  s390/kvm: Convert to use flag output macros
  s390/extmem: Convert to use flag output macros
  s390/string: Convert to use flag output macros
  s390/diag: Convert to use flag output macros
  s390/irq: Convert to use flag output macros
  s390/smp: Convert to use flag output macros
  s390/uv: Convert to use flag output macros
  s390/pai: Convert to use flag output macros
  s390/mm: Convert to use flag output macros
  s390/cpu_mf: Convert to use flag output macros
  s390/cpcmd: Convert to use flag output macros
  s390/topology: Convert to use flag output macros
  s390/time: Convert to use flag output macros
  s390/pageattr: Convert to use flag output macros
  ...
2024-11-18 17:45:41 -08:00
Linus Torvalds
5591fd5e03 lsm/stable-6.13 PR 20241112
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Merge tag 'lsm-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull lsm updates from Paul Moore:
 "Thirteen patches, all focused on moving away from the current 'secid'
  LSM identifier to a richer 'lsm_prop' structure.

  This move will help reduce the translation that is necessary in many
  LSMs, offering better performance, and make it easier to support
  different LSMs in the future"

* tag 'lsm-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  lsm: remove lsm_prop scaffolding
  netlabel,smack: use lsm_prop for audit data
  audit: change context data from secid to lsm_prop
  lsm: create new security_cred_getlsmprop LSM hook
  audit: use an lsm_prop in audit_names
  lsm: use lsm_prop in security_inode_getsecid
  lsm: use lsm_prop in security_current_getsecid
  audit: update shutdown LSM data
  lsm: use lsm_prop in security_ipc_getsecid
  audit: maintain an lsm_prop in audit_context
  lsm: add lsmprop_to_secctx hook
  lsm: use lsm_prop in security_audit_rule_match
  lsm: add the lsm_prop data structure
2024-11-18 17:34:05 -08:00
Linus Torvalds
8ffc7dbce2 selinux/stable-6.13 PR 20241112
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Merge tag 'selinux-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:

 - Add support for netlink xperms

   Some time ago we added the concept of "xperms" to the SELinux policy
   so that we could write policy for individual ioctls, this builds upon
   this by using extending xperms to netlink so that we can write
   SELinux policy for individual netlnk message types and not rely on
   the fairly coarse read/write mapping tables we currently have.

   There are limitations involving generic netlink due to the
   multiplexing that is done, but it's no worse that what we currently
   have. As usual, more information can be found in the commit message.

 - Deprecate /sys/fs/selinux/user

   We removed the only known userspace use of this back in 2020 and now
   that several years have elapsed we're starting down the path of
   deprecating it in the kernel.

 - Cleanup the build under scripts/selinux

   A couple of patches to move the genheaders tool under
   security/selinux and correct our usage of kernel headers in the tools
   located under scripts/selinux. While these changes originated out of
   an effort to build Linux on different systems, they are arguably the
   right thing to do regardless.

 - Minor code cleanups and style fixes

   Not much to say here, two minor cleanup patches that came out of the
   netlink xperms work

* tag 'selinux-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: Deprecate /sys/fs/selinux/user
  selinux: apply clang format to security/selinux/nlmsgtab.c
  selinux: streamline selinux_nlmsg_lookup()
  selinux: Add netlink xperm support
  selinux: move genheaders to security/selinux/
  selinux: do not include <linux/*.h> headers from host programs
2024-11-18 17:30:52 -08:00
Linus Torvalds
a8220b0ca7 audit/stable-6.13 PR 20241112
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Merge tag 'audit-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "The audit patches are minimal this time around with one patch to
  correct some kdoc function parameters and one to leverage the
  `str_yes_no()` function; nothing very exciting"

* tag 'audit-pr-20241112' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: Use str_yes_no() helper function
  audit: Reorganize kerneldoc parameter names
2024-11-18 17:28:52 -08:00
Linus Torvalds
8350142a4b for-6.13/io_uring-20241118
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Merge tag 'for-6.13/io_uring-20241118' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - Cleanups of the eventfd handling code, making it fully private.

 - Support for sending a sync message to another ring, without having a
   ring available to send a normal async message.

 - Get rid of the separate unlocked hash table, unify everything around
   the single locked one.

 - Add support for ring resizing. It can be hard to appropriately size
   the CQ ring upfront, if the application doesn't know how busy it will
   be. This results in applications sizing rings for the most busy case,
   which can be wasteful. With ring resizing, they can start small and
   grow the ring, if needed.

 - Add support for fixed wait regions, rather than needing to copy the
   same wait data tons of times for each wait operation.

 - Rewrite the resource node handling, which before was serialized per
   ring. This caused issues with particularly fixed files, where one
   file waiting on IO could hold up putting and freeing of other
   unrelated files. Now each node is handled separately. New code is
   much simpler too, and was a net 250 line reduction in code.

 - Add support for just doing partial buffer clones, rather than always
   cloning the entire buffer table.

 - Series adding static NAPI support, where a specific NAPI instance is
   used rather than having a list of them available that need lookup.

 - Add support for mapped regions, and also convert the fixed wait
   support mentioned above to that concept. This avoids doing special
   mappings for various planned features, and folds the existing
   registered wait into that too.

 - Add support for hybrid IO polling, which is a variant of strict
   IOPOLL but with an initial sleep delay to avoid spinning too early
   and wasting resources on devices that aren't necessarily in the < 5
   usec category wrt latencies.

 - Various cleanups and little fixes.

* tag 'for-6.13/io_uring-20241118' of git://git.kernel.dk/linux: (79 commits)
  io_uring/region: fix error codes after failed vmap
  io_uring: restore back registered wait arguments
  io_uring: add memory region registration
  io_uring: introduce concept of memory regions
  io_uring: temporarily disable registered waits
  io_uring: disable ENTER_EXT_ARG_REG for IOPOLL
  io_uring: fortify io_pin_pages with a warning
  switch io_msg_ring() to CLASS(fd)
  io_uring: fix invalid hybrid polling ctx leaks
  io_uring/uring_cmd: fix buffer index retrieval
  io_uring/rsrc: add & apply io_req_assign_buf_node()
  io_uring/rsrc: remove '->ctx_ptr' of 'struct io_rsrc_node'
  io_uring/rsrc: pass 'struct io_ring_ctx' reference to rsrc helpers
  io_uring: avoid normal tw intermediate fallback
  io_uring/napi: add static napi tracking strategy
  io_uring/napi: clean up __io_napi_do_busy_loop
  io_uring/napi: Use lock guards
  io_uring/napi: improve __io_napi_add
  io_uring/napi: fix io_napi_entry RCU accesses
  io_uring/napi: protect concurrent io_napi_entry timeout accesses
  ...
2024-11-18 17:02:57 -08:00
Linus Torvalds
77a0cfafa9 for-6.13/block-20241118
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Merge tag 'for-6.13/block-20241118' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe updates via Keith:
      - Use uring_cmd helper (Pavel)
      - Host Memory Buffer allocation enhancements (Christoph)
      - Target persistent reservation support (Guixin)
      - Persistent reservation tracing (Guixen)
      - NVMe 2.1 specification support (Keith)
      - Rotational Meta Support (Matias, Wang, Keith)
      - Volatile cache detection enhancment (Guixen)

 - MD updates via Song:
      - Maintainers update
      - raid5 sync IO fix
      - Enhance handling of faulty and blocked devices
      - raid5-ppl atomic improvement
      - md-bitmap fix

 - Support for manually defining embedded partition tables

 - Zone append fixes and cleanups

 - Stop sending the queued requests in the plug list to the driver
   ->queue_rqs() handle in reverse order.

 - Zoned write plug cleanups

 - Cleanups disk stats tracking and add support for disk stats for
   passthrough IO

 - Add preparatory support for file system atomic writes

 - Add lockdep support for queue freezing. Already found a bunch of
   issues, and some fixes for that are in here. More will be coming.

 - Fix race between queue stopping/quiescing and IO queueing

 - ublk recovery improvements

 - Fix ublk mmap for 64k pages

 - Various fixes and cleanups

* tag 'for-6.13/block-20241118' of git://git.kernel.dk/linux: (118 commits)
  MAINTAINERS: Update git tree for mdraid subsystem
  block: make struct rq_list available for !CONFIG_BLOCK
  block/genhd: use seq_put_decimal_ull for diskstats decimal values
  block: don't reorder requests in blk_mq_add_to_batch
  block: don't reorder requests in blk_add_rq_to_plug
  block: add a rq_list type
  block: remove rq_list_move
  virtio_blk: reverse request order in virtio_queue_rqs
  nvme-pci: reverse request order in nvme_queue_rqs
  btrfs: validate queue limits
  block: export blk_validate_limits
  nvmet: add tracing of reservation commands
  nvme: parse reservation commands's action and rtype to string
  nvmet: report ns's vwc not present
  md/raid5: Increase r5conf.cache_name size
  block: remove the ioprio field from struct request
  block: remove the write_hint field from struct request
  nvme: check ns's volatile write cache not present
  nvme: add rotational support
  nvme: use command set independent id ns if available
  ...
2024-11-18 16:50:08 -08:00
Linus Torvalds
3d1b536c13 ata changes for 6.13
- Fix typos in comments (Yan Zhen)
 
  - Remove unused macro definitions (Damien Le Moal)
 
  - Switch back to the .remove() callback (Uwe Kleine-König)
 
  - Make use of the get_unaligned_be24() helper instead of open coding
    (Andy Shevchenko)
 
  - Refactor and cleanup ata_scsi_simulate() command emulation, such that
    all commands use ata_scsi_rbuf_fill() with its own callback
    (Damien Le Moal)
 
  - Improve ata_scsi_simulate() command emulation by accurately setting the
    SCSI command residual (number of bytes not filled) in the command reply
    (Damien Le Moal)
 
  - Add missing iommus property in ahci-platform device tree binding
    (Frank Wunderlich)
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Merge tag 'ata-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ata updates from Niklas Cassel:

 - Fix typos in comments (Yan Zhen)

 - Remove unused macro definitions (Damien Le Moal)

 - Switch back to the .remove() callback (Uwe Kleine-König)

 - Make use of the get_unaligned_be24() helper instead of open coding
   (Andy Shevchenko)

 - Refactor and cleanup ata_scsi_simulate() command emulation, such that
   all commands use ata_scsi_rbuf_fill() with its own callback (Damien
   Le Moal)

 - Improve ata_scsi_simulate() command emulation by accurately setting
   the SCSI command residual (number of bytes not filled) in the command
   reply (Damien Le Moal)

 - Add missing iommus property in ahci-platform device tree binding
   (Frank Wunderlich)

* tag 'ata-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  dt-bindings: ata: ahci-platform: add missing iommus property
  ata: libata-scsi: Return residual for emulated SCSI commands
  ata: libata-scsi: Remove struct ata_scsi_args
  ata: libata-scsi: Document all VPD page inquiry actors
  ata: libata-scsi: Refactor ata_scsiop_maint_in()
  ata: libata-scsi: Refactor ata_scsiop_read_cap()
  ata: libata-scsi: Refactor ata_scsi_simulate()
  ata: libata-scsi: Refactor scsi_6_lba_len() with use of get_unaligned_be24()
  ata: Switch back to struct platform_driver::remove()
  ata: libata: Remove unused macro definitions
  ata: Fix typos in the comment
2024-11-18 16:45:28 -08:00
Linus Torvalds
c14a8a4c04 for-6.13-tag
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Merge tag 'for-6.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Changes outside of btrfs: add io_uring command flag to track a dying
  task (the rest will go via the block git tree).

  User visible changes:

   - wire encoded read (ioctl) to io_uring commands, this can be used on
     itself, in the future this will allow 'send' to be asynchronous. As
     a consequence, the encoded read ioctl can also work in non-blocking
     mode

   - new ioctl to wait for cleaned subvolumes, no need to use the
     generic and root-only SEARCH_TREE ioctl, will be used by "btrfs
     subvol sync"

   - recognize different paths/symlinks for the same devices and don't
     report them during rescanning, this can be observed with LVM or DM

   - seeding device use case change, the sprout device (the one
     capturing new writes) will not clear the read-only status of the
     super block; this prevents accumulating space from deleted
     snapshots

  Performance improvements:

   - reduce lock contention when traversing extent buffers

   - reduce extent tree lock contention when searching for inline
     backref

   - switch from rb-trees to xarray for delayed ref tracking,
     improvements due to better cache locality, branching factors and
     more compact data structures

   - enable extent map shrinker again (prevent memory exhaustion under
     some types of IO load), reworked to run in a single worker thread
     (there used to be problems causing long stalls under memory
     pressure)

  Core changes:

   - raid-stripe-tree feature updates:
       - make device replace and scrub work
       - implement partial deletion of stripe extents
       - new selftests

   - split the config option BTRFS_DEBUG and add EXPERIMENTAL for
     features that are experimental or with known problems so we don't
     misuse debugging config for that

   - subpage mode updates (sector < page):
       - update compression implementations
       - update writepage, writeback

   - continued folio API conversions:
       - buffered writes

   - make buffered write copy one page at a time, preparatory work for
     future integration with large folios, may cause performance drop

   - proper locking of root item regarding starting send

   - error handling improvements

   - code cleanups and refactoring:
       - dead code removal
       - unused parameter reduction
       - lockdep assertions"

* tag 'for-6.13-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (119 commits)
  btrfs: send: check for read-only send root under critical section
  btrfs: send: check for dead send root under critical section
  btrfs: remove check for NULL fs_info at btrfs_folio_end_lock_bitmap()
  btrfs: fix warning on PTR_ERR() against NULL device at btrfs_control_ioctl()
  btrfs: fix a typo in btrfs_use_zone_append
  btrfs: avoid superfluous calls to free_extent_map() in btrfs_encoded_read()
  btrfs: simplify logic to decrement snapshot counter at btrfs_mksnapshot()
  btrfs: remove hole from struct btrfs_delayed_node
  btrfs: update stale comment for struct btrfs_delayed_ref_node::add_list
  btrfs: add new ioctl to wait for cleaned subvolumes
  btrfs: simplify range tracking in cow_file_range()
  btrfs: remove conditional path allocation in btrfs_read_locked_inode()
  btrfs: push cleanup into btrfs_read_locked_inode()
  io_uring/cmd: let cmds to know about dying task
  btrfs: add struct io_btrfs_cmd as type for io_uring_cmd_to_pdu()
  btrfs: add io_uring command for encoded reads (ENCODED_READ ioctl)
  btrfs: move priv off stack in btrfs_encoded_read_regular_fill_pages()
  btrfs: don't sleep in btrfs_encoded_read() if IOCB_NOWAIT is set
  btrfs: change btrfs_encoded_read() so that reading of extent is done by caller
  btrfs: remove pointless iocb::ki_pos addition in btrfs_encoded_read()
  ...
2024-11-18 16:37:41 -08:00
Linus Torvalds
3e7447ab48 A lot of miscellaneous ext4 bug fixes and cleanups this cycle, most
notably in the journaling code, bufered I/O, and compiler warning
 cleanups.
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Merge tag 'ext4_for_linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "A lot of miscellaneous ext4 bug fixes and cleanups this cycle, most
  notably in the journaling code, bufered I/O, and compiler warning
  cleanups"

* tag 'ext4_for_linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (33 commits)
  jbd2: Fix comment describing journal_init_common()
  ext4: prevent an infinite loop in the lazyinit thread
  ext4: use struct_size() to improve ext4_htree_store_dirent()
  ext4: annotate struct fname with __counted_by()
  jbd2: avoid dozens of -Wflex-array-member-not-at-end warnings
  ext4: use str_yes_no() helper function
  ext4: prevent delalloc to nodelalloc on remount
  jbd2: make b_frozen_data allocation always succeed
  ext4: cleanup variable name in ext4_fc_del()
  ext4: use string choices helpers
  jbd2: remove the 'success' parameter from the jbd2_do_replay() function
  jbd2: remove useless 'block_error' variable
  jbd2: factor out jbd2_do_replay()
  jbd2: refactor JBD2_COMMIT_BLOCK process in do_one_pass()
  jbd2: unified release of buffer_head in do_one_pass()
  jbd2: remove redundant judgments for check v1 checksum
  ext4: use ERR_CAST to return an error-valued pointer
  mm: zero range of eof folio exposed by inode size extension
  ext4: partial zero eof block on unaligned inode size extension
  ext4: disambiguate the return value of ext4_dio_write_end_io()
  ...
2024-11-18 16:32:58 -08:00
Linus Torvalds
c6d64479d6 sanitize struct filename and lookup flags handling in statx
and friends
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull statx updates from Al Viro:
 "Sanitize struct filename and lookup flags handling in statx and
  friends"

* tag 'pull-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  libfs: kill empty_dir_getattr()
  fs: Simplify getattr interface function checking AT_GETATTR_NOSEC flag
  fs/stat.c: switch to CLASS(fd_raw)
  kill getname_statx_lookup_flags()
  io_statx_prep(): use getname_uflags()
2024-11-18 14:54:10 -08:00
Linus Torvalds
9fb2cfa463 ufs cleanups, fixes and folio conversion
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-ufs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull ufs updates from Al Viro:
 "ufs cleanups, fixes and folio conversion"

* tag 'pull-ufs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  ufs: ufs_sb_private_info: remove unused s_{2,3}apb fields
  ufs: Convert ufs_change_blocknr() to take a folio
  ufs: Pass a folio to ufs_new_fragments()
  ufs: Convert ufs_inode_getfrag() to take a folio
  ufs: Convert ufs_extend_tail() to take a folio
  ufs: Convert ufs_inode_getblock() to take a folio
  ufs: take the handling of free block counters into a helper
  clean ufs_trunc_direct() up a bit...
  ufs: get rid of ubh_{ubhcpymem,memcpyubh}()
  ufs_inode_getfrag(): remove junk comment
  ufs_free_fragments(): fix the braino in sanity check
  ufs_clusteracct(): switch to passing fragment number
  ufs: untangle ubh_...block...(), part 3
  ufs: untangle ubh_...block...(), part 2
  ufs: untangle ubh_...block...() macros, part 1
  ufs: fix ufs_read_cylinder() failure handling
  ufs: missing ->splice_write()
  ufs: fix handling of delete_entry and set_link failures
2024-11-18 12:58:23 -08:00
Linus Torvalds
82339c4911 sanitize xattr and io_uring interactions with it,
add *xattrat() syscalls, sanitize struct filename handling in there.
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull xattr updates from Al Viro:
 "Sanitize xattr and io_uring interactions with it, add *xattrat()
  syscalls, sanitize struct filename handling in there"

* tag 'pull-xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  xattr: remove redundant check on variable err
  fs/xattr: add *at family syscalls
  new helpers: file_removexattr(), filename_removexattr()
  new helpers: file_listxattr(), filename_listxattr()
  replace do_getxattr() with saner helpers.
  replace do_setxattr() with saner helpers.
  new helper: import_xattr_name()
  fs: rename struct xattr_ctx to kernel_xattr_ctx
  xattr: switch to CLASS(fd)
  io_[gs]etxattr_prep(): just use getname()
  io_uring: IORING_OP_F[GS]ETXATTR is fine with REQ_F_FIXED_FILE
  getname_maybe_null() - the third variant of pathname copy-in
  teach filename_lookup() to treat NULL filename as ""
2024-11-18 12:44:25 -08:00
Linus Torvalds
0f25f0e4ef the bulk of struct fd memory safety stuff
Making sure that struct fd instances are destroyed in the same
 scope where they'd been created, getting rid of reassignments
 and passing them by reference, converting to CLASS(fd{,_pos,_raw}).
 
 We are getting very close to having the memory safety of that stuff
 trivial to verify.
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull 'struct fd' class updates from Al Viro:
 "The bulk of struct fd memory safety stuff

  Making sure that struct fd instances are destroyed in the same scope
  where they'd been created, getting rid of reassignments and passing
  them by reference, converting to CLASS(fd{,_pos,_raw}).

  We are getting very close to having the memory safety of that stuff
  trivial to verify"

* tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
  deal with the last remaing boolean uses of fd_file()
  css_set_fork(): switch to CLASS(fd_raw, ...)
  memcg_write_event_control(): switch to CLASS(fd)
  assorted variants of irqfd setup: convert to CLASS(fd)
  do_pollfd(): convert to CLASS(fd)
  convert do_select()
  convert vfs_dedupe_file_range().
  convert cifs_ioctl_copychunk()
  convert media_request_get_by_fd()
  convert spu_run(2)
  switch spufs_calls_{get,put}() to CLASS() use
  convert cachestat(2)
  convert do_preadv()/do_pwritev()
  fdget(), more trivial conversions
  fdget(), trivial conversions
  privcmd_ioeventfd_assign(): don't open-code eventfd_ctx_fdget()
  o2hb_region_dev_store(): avoid goto around fdget()/fdput()
  introduce "fd_pos" class, convert fdget_pos() users to it.
  fdget_raw() users: switch to CLASS(fd_raw)
  convert vmsplice() to CLASS(fd)
  ...
2024-11-18 12:24:06 -08:00
Linus Torvalds
23acd17754 vfs-6.13.ecryptfs
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Merge tag 'vfs-6.13.ecryptfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull ecryptfs updates from Christian Brauner:
 "The folio project is about to remove page->index. This contains the
  work required for ecryptfs"

* tag 'vfs-6.13.ecryptfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  ecryptfs: Pass the folio index to crypt_extent()
  ecryptfs: Convert lower_offset_for_page() to take a folio
  ecryptfs: Convert ecryptfs_decrypt_page() to take a folio
  ecryptfs: Convert ecryptfs_encrypt_page() to take a folio
  ecryptfs: Convert ecryptfs_write_lower_page_segment() to take a folio
  ecryptfs: Convert ecryptfs_write() to use a folio
  ecryptfs: Convert ecryptfs_read_lower_page_segment() to take a folio
  ecryptfs: Convert ecryptfs_copy_up_encrypted_with_header() to take a folio
  ecryptfs: Use a folio throughout ecryptfs_read_folio()
  ecryptfs: Convert ecryptfs_writepage() to ecryptfs_writepages()
2024-11-18 11:44:06 -08:00
Linus Torvalds
241c7ed4d4 vfs-6.13.untorn.writes
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Merge tag 'vfs-6.13.untorn.writes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs untorn write support from Christian Brauner:
 "An atomic write is a write issed with torn-write protection. This
  means for a power failure or any hardware failure all or none of the
  data from the write will be stored, never a mix of old and new data.

  This work is already supported for block devices. If a block device is
  opened with O_DIRECT and the block device supports atomic write, then
  FMODE_CAN_ATOMIC_WRITE is added to the file of the opened block
  device.

  This contains the work to expand atomic write support to filesystems,
  specifically ext4 and XFS. Currently, only support for writing exactly
  one filesystem block atomically is added.

  Since it's now possible to have filesystem block size > page size for
  XFS, it's possible to write 4K+ blocks atomically on x86"

* tag 'vfs-6.13.untorn.writes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  iomap: drop an obsolete comment in iomap_dio_bio_iter
  ext4: Do not fallback to buffered-io for DIO atomic write
  ext4: Support setting FMODE_CAN_ATOMIC_WRITE
  ext4: Check for atomic writes support in write iter
  ext4: Add statx support for atomic writes
  xfs: Support setting FMODE_CAN_ATOMIC_WRITE
  xfs: Validate atomic writes
  xfs: Support atomic write for statx
  fs: iomap: Atomic write support
  fs: Export generic_atomic_write_valid()
  block: Add bdev atomic write limits helpers
  fs/block: Check for IOCB_DIRECT in generic_atomic_write_valid()
  block/fs: Pass an iocb to generic_atomic_write_valid()
2024-11-18 11:30:09 -08:00
Linus Torvalds
7956186e75 vfs-6.13.tmpfs
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Merge tag 'vfs-6.13.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull tmpfs case folding updates from Christian Brauner:
 "This adds case-insensitive support for tmpfs.

  The work contained in here adds support for case-insensitive file
  names lookups in tmpfs. The main difference from other casefold
  filesystems is that tmpfs has no information on disk, just on RAM, so
  we can't use mkfs to create a case-insensitive tmpfs. For this
  implementation, there's a mount option for casefolding. The rest of
  the patchset follows a similar approach as ext4 and f2fs.

  The use case for this feature is similar to the use case for ext4, to
  better support compatibility layers (like Wine), particularly in
  combination with sandboxing/container tools (like Flatpak).

  Those containerization tools can share a subset of the host filesystem
  with an application. In the container, the root directory and any
  parent directories required for a shared directory are on tmpfs, with
  the shared directories bind-mounted into the container's view of the
  filesystem.

  If the host filesystem is using case-insensitive directories, then the
  application can do lookups inside those directories in a
  case-insensitive way, without this needing to be implemented in
  user-space. However, if the host is only sharing a subset of a
  case-insensitive directory with the application, then the parent
  directories of the mount point will be part of the container's root
  tmpfs. When the application tries to do case-insensitive lookups of
  those parent directories on a case-sensitive tmpfs, the lookup will
  fail"

* tag 'vfs-6.13.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  tmpfs: Initialize sysfs during tmpfs init
  tmpfs: Fix type for sysfs' casefold attribute
  libfs: Fix kernel-doc warning in generic_ci_validate_strict_name
  docs: tmpfs: Add casefold options
  tmpfs: Expose filesystem features via sysfs
  tmpfs: Add flag FS_CASEFOLD_FL support for tmpfs dirs
  tmpfs: Add casefold lookup support
  libfs: Export generic_ci_ dentry functions
  unicode: Recreate utf8_parse_version()
  unicode: Export latest available UTF-8 version number
  ext4: Use generic_ci_validate_strict_name helper
  libfs: Create the helper function generic_ci_validate_strict_name()
2024-11-18 11:05:26 -08:00
Linus Torvalds
a5ca574796 vfs-6.13.usercopy
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Merge tag 'vfs-6.13.usercopy' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull copy_struct_to_user helper from Christian Brauner:
 "This adds a copy_struct_to_user() helper which is a companion helper
  to the already widely used copy_struct_from_user().

  It copies a struct from kernel space to userspace, in a way that
  guarantees backwards-compatibility for struct syscall arguments as
  long as future struct extensions are made such that all new fields are
  appended to the old struct, and zeroed-out new fields have the same
  meaning as the old struct.

  The first user is sched_getattr() system call but the new extensible
  pidfs ioctl will be ported to it as well"

* tag 'vfs-6.13.usercopy' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  sched_getattr: port to copy_struct_to_user
  uaccess: add copy_struct_to_user helper
2024-11-18 10:50:09 -08:00
Linus Torvalds
909d3b571e vfs-6.13.pidfs
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Merge tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull pidfs update from Christian Brauner:
 "This adds a new ioctl to retrieve information about a pidfd.

  A common pattern when using pidfds is having to get information about
  the process, which currently requires /proc being mounted, resolving
  the fd to a pid, and then do manual string parsing of /proc/N/status
  and friends. This needs to be reimplemented over and over in all
  userspace projects (e.g.: it has been reimplemented in systemd, dbus,
  dbus-daemon, polkit so far), and requires additional care in checking
  that the fd is still valid after having parsed the data, to avoid
  races.

  Having a programmatic API that can be used directly removes all these
  requirements, including having /proc mounted.

  As discussed at LPC24, add an ioctl with an extensible struct so that
  more parameters can be added later if needed. Start with returning
  pid/tgid/ppid and some creds unconditionally, and cgroupid optionally"

* tag 'vfs-6.13.pidfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  pidfd: add ioctl to retrieve pid info
2024-11-18 10:47:46 -08:00
Linus Torvalds
a29835c9d0 vfs-6.13.ovl
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Merge tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull overlayfs updates from Christian Brauner:
 "Make overlayfs support specifying layers through file descriptors.

  Currently overlayfs only allows specifying layers through path names.
  This is inconvenient for users that want to assemble an overlayfs
  mount purely based on file descriptors:

  This enables user to specify both:

    fsconfig(fd_overlay, FSCONFIG_SET_FD, "upperdir+", NULL, fd_upper);
    fsconfig(fd_overlay, FSCONFIG_SET_FD, "workdir+",  NULL, fd_work);
    fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower1);
    fsconfig(fd_overlay, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower2);

  in addition to:

    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "upperdir+", "/upper",  0);
    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "workdir+",  "/work",   0);
    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower1", 0);
    fsconfig(fd_overlay, FSCONFIG_SET_STRING, "lowerdir+", "/lower2", 0);

  There's also a large set of new overlayfs selftests to test new
  features and some older properties"

* tag 'vfs-6.13.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  selftests: add test for specifying 500 lower layers
  selftests: add overlayfs fd mounting selftests
  selftests: use shared header
  Documentation,ovl: document new file descriptor based layers
  ovl: specify layers via file descriptors
  fs: add helper to use mount option as path or fd
2024-11-18 10:45:06 -08:00
Linus Torvalds
4c797b11a8 vfs-6.13.file
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Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs file updates from Christian Brauner:
 "This contains changes the changes for files for this cycle:

   - Introduce a new reference counting mechanism for files.

     As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop
     it has O(N^2) behaviour under contention with N concurrent
     operations and it is in a hot path in __fget_files_rcu().

     The rcuref infrastructures remedies this problem by using an
     unconditional increment relying on safe- and dead zones to make
     this work and requiring rcu protection for the data structure in
     question. This not just scales better it also introduces overflow
     protection.

     However, in contrast to generic rcuref, files require a memory
     barrier and thus cannot rely on *_relaxed() atomic operations and
     also require to be built on atomic_long_t as having massive amounts
     of reference isn't unheard of even if it is just an attack.

     This adds a file specific variant instead of making this a generic
     library.

     This has been tested by various people and it gives consistent
     improvement up to 3-5% on workloads with loads of threads.

   - Add a fastpath for find_next_zero_bit(). Skip 2-levels searching
     via find_next_zero_bit() when there is a free slot in the word that
     contains the next fd. This improves pts/blogbench-1.1.0 read by 8%
     and write by 4% on Intel ICX 160.

   - Conditionally clear full_fds_bits since it's very likely that a bit
     in full_fds_bits has been cleared during __clear_open_fds(). This
     improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on
     Intel ICX 160.

   - Get rid of all lookup_*_fdget_rcu() variants. They were used to
     lookup files without taking a reference count. That became invalid
     once files were switched to SLAB_TYPESAFE_BY_RCU and now we're
     always taking a reference count. Switch to an already existing
     helper and remove the legacy variants.

   - Remove pointless includes of <linux/fdtable.h>.

   - Avoid cmpxchg() in close_files() as nobody else has a reference to
     the files_struct at that point.

   - Move close_range() into fs/file.c and fold __close_range() into it.

   - Cleanup calling conventions of alloc_fdtable() and expand_files().

   - Merge __{set,clear}_close_on_exec() into one.

   - Make __set_open_fd() set cloexec as well instead of doing it in two
     separate steps"

* tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor
  fs: port files to file_ref
  fs: add file_ref
  expand_files(): simplify calling conventions
  make __set_open_fd() set cloexec state as well
  fs: protect backing files with rcu
  file.c: merge __{set,clear}_close_on_exec()
  alloc_fdtable(): change calling conventions.
  fs/file.c: add fast path in find_next_fd()
  fs/file.c: conditionally clear full_fds
  fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd()
  move close_range(2) into fs/file.c, fold __close_range() into it
  close_files(): don't bother with xchg()
  remove pointless includes of <linux/fdtable.h>
  get rid of ...lookup...fdget_rcu() family
2024-11-18 10:30:29 -08:00
Linus Torvalds
8dcf44fcad vfs-6.13.netfs
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Merge tag 'vfs-6.13.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull netfs updates from Christian Brauner:
 "Various fixes for the netfs library and related infrastructure:

  cachefiles:

   - Fix a dentry leak in cachefiles_open_file()

   - Fix incorrect length return value in
     cachefiles_ondemand_fd_write_iter()

   - Fix missing pos updates in cachefiles_ondemand_fd_write_iter()

   - Clean up in cachefiles_commit_tmpfile()

   - Fix NULL pointer dereference in object->file

   - Add a memory barrier for FSCACHE_VOLUME_CREATING

  netfs:

   - Remove call to folio_index()

   - Fix a few minor bugs in netfs_page_mkwrite()

   - Remove unnecessary references to pages"

* tag 'vfs-6.13.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
  cachefiles: Fix NULL pointer dereference in object->file
  cachefiles: Clean up in cachefiles_commit_tmpfile()
  cachefiles: Fix missing pos updates in cachefiles_ondemand_fd_write_iter()
  cachefiles: Fix incorrect length return value in cachefiles_ondemand_fd_write_iter()
  netfs: Remove unnecessary references to pages
  netfs: Fix a few minor bugs in netfs_page_mkwrite()
  netfs: Remove call to folio_index()
2024-11-18 10:26:49 -08:00
Linus Torvalds
56be9aaf98 vfs-6.13.pagecache
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Merge tag 'vfs-6.13.pagecache' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs pagecache updates from Christian Brauner:
 "Cleanup filesystem page flag usage: This continues the work to make
  the mappedtodisk/owner_2 flag available to filesystems which don't use
  buffer heads. Further patches remove uses of Private2. This brings us
  very close to being rid of it entirely"

* tag 'vfs-6.13.pagecache' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  migrate: Remove references to Private2
  ceph: Remove call to PagePrivate2()
  btrfs: Switch from using the private_2 flag to owner_2
  mm: Remove PageMappedToDisk
  nilfs2: Convert nilfs_copy_buffer() to use folios
  fs: Move clearing of mappedtodisk to buffer.c
2024-11-18 09:54:32 -08:00
Linus Torvalds
5bb6ba448f vfs-6.13.rust.file
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Merge tag 'vfs-6.13.rust.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs rust file abstractions from Christian Brauner:
 "This contains the file abstractions needed by the Rust implementation
  of the Binder driver and other parts of the kernel.

  Let's treat this as a first attempt at getting something working but I
  do expect the actual interfaces to change significantly over time.
  Simply because we are still figuring out what actually works. But
  there's no point in further theorizing. Let's see how it holds up with
  actual users"

* tag 'vfs-6.13.rust.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  rust: task: adjust safety comments in Task methods
  rust: add seqfile abstraction
  rust: file: add abstraction for `poll_table`
  rust: file: add `Kuid` wrapper
  rust: file: add `FileDescriptorReservation`
  rust: security: add abstraction for secctx
  rust: cred: add Rust abstraction for `struct cred`
  rust: file: add Rust abstraction for `struct file`
  rust: task: add `Task::current_raw`
  rust: types: add `NotThreadSafe`
2024-11-18 09:51:32 -08:00
Linus Torvalds
70e7730c2a vfs-6.13.misc
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Merge tag 'vfs-6.13.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull misc vfs updates from Christian Brauner:
 "Features:

   - Fixup and improve NLM and kNFSD file lock callbacks

     Last year both GFS2 and OCFS2 had some work done to make their
     locking more robust when exported over NFS. Unfortunately, part of
     that work caused both NLM (for NFS v3 exports) and kNFSD (for
     NFSv4.1+ exports) to no longer send lock notifications to clients

     This in itself is not a huge problem because most NFS clients will
     still poll the server in order to acquire a conflicted lock

     It's important for NLM and kNFSD that they do not block their
     kernel threads inside filesystem's file_lock implementations
     because that can produce deadlocks. We used to make sure of this by
     only trusting that posix_lock_file() can correctly handle blocking
     lock calls asynchronously, so the lock managers would only setup
     their file_lock requests for async callbacks if the filesystem did
     not define its own lock() file operation

     However, when GFS2 and OCFS2 grew the capability to correctly
     handle blocking lock requests asynchronously, they started
     signalling this behavior with EXPORT_OP_ASYNC_LOCK, and the check
     for also trusting posix_lock_file() was inadvertently dropped, so
     now most filesystems no longer produce lock notifications when
     exported over NFS

     Fix this by using an fop_flag which greatly simplifies the problem
     and grooms the way for future uses by both filesystems and lock
     managers alike

   - Add a sysctl to delete the dentry when a file is removed instead of
     making it a negative dentry

     Commit 681ce86235 ("vfs: Delete the associated dentry when
     deleting a file") introduced an unconditional deletion of the
     associated dentry when a file is removed. However, this led to
     performance regressions in specific benchmarks, such as
     ilebench.sum_operations/s, prompting a revert in commit
     4a4be1ad3a ("Revert "vfs: Delete the associated dentry when
     deleting a file""). This reintroduces the concept conditionally
     through a sysctl

   - Expand the statmount() system call:

       * Report the filesystem subtype in a new fs_subtype field to
         e.g., report fuse filesystem subtypes

       * Report the superblock source in a new sb_source field

       * Add a new way to return filesystem specific mount options in an
         option array that returns filesystem specific mount options
         separated by zero bytes and unescaped. This allows caller's to
         retrieve filesystem specific mount options and immediately pass
         them to e.g., fsconfig() without having to unescape or split
         them

       * Report security (LSM) specific mount options in a separate
         security option array. We don't lump them together with
         filesystem specific mount options as security mount options are
         generic and most users aren't interested in them

         The format is the same as for the filesystem specific mount
         option array

   - Support relative paths in fsconfig()'s FSCONFIG_SET_STRING command

   - Optimize acl_permission_check() to avoid costly {g,u}id ownership
     checks if possible

   - Use smp_mb__after_spinlock() to avoid full smp_mb() in evict()

   - Add synchronous wakeup support for ep_poll_callback.

     Currently, epoll only uses wake_up() to wake up task. But sometimes
     there are epoll users which want to use the synchronous wakeup flag
     to give a hint to the scheduler, e.g., the Android binder driver.
     So add a wake_up_sync() define, and use wake_up_sync() when sync is
     true in ep_poll_callback()

  Fixes:

   - Fix kernel documentation for inode_insert5() and iget5_locked()

   - Annotate racy epoll check on file->f_ep

   - Make F_DUPFD_QUERY associative

   - Avoid filename buffer overrun in initramfs

   - Don't let statmount() return empty strings

   - Add a cond_resched() to dump_user_range() to avoid hogging the CPU

   - Don't query the device logical blocksize multiple times for hfsplus

   - Make filemap_read() check that the offset is positive or zero

  Cleanups:

   - Various typo fixes

   - Cleanup wbc_attach_fdatawrite_inode()

   - Add __releases annotation to wbc_attach_and_unlock_inode()

   - Add hugetlbfs tracepoints

   - Fix various vfs kernel doc parameters

   - Remove obsolete TODO comment from io_cancel()

   - Convert wbc_account_cgroup_owner() to take a folio

   - Fix comments for BANDWITH_INTERVAL and wb_domain_writeout_add()

   - Reorder struct posix_acl to save 8 bytes

   - Annotate struct posix_acl with __counted_by()

   - Replace one-element array with flexible array member in freevxfs

   - Use idiomatic atomic64_inc_return() in alloc_mnt_ns()"

* tag 'vfs-6.13.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (35 commits)
  statmount: retrieve security mount options
  vfs: make evict() use smp_mb__after_spinlock instead of smp_mb
  statmount: add flag to retrieve unescaped options
  fs: add the ability for statmount() to report the sb_source
  writeback: wbc_attach_fdatawrite_inode out of line
  writeback: add a __releases annoation to wbc_attach_and_unlock_inode
  fs: add the ability for statmount() to report the fs_subtype
  fs: don't let statmount return empty strings
  fs:aio: Remove TODO comment suggesting hash or array usage in io_cancel()
  hfsplus: don't query the device logical block size multiple times
  freevxfs: Replace one-element array with flexible array member
  fs: optimize acl_permission_check()
  initramfs: avoid filename buffer overrun
  fs/writeback: convert wbc_account_cgroup_owner to take a folio
  acl: Annotate struct posix_acl with __counted_by()
  acl: Realign struct posix_acl to save 8 bytes
  epoll: Add synchronous wakeup support for ep_poll_callback
  coredump: add cond_resched() to dump_user_range
  mm/page-writeback.c: Fix comment of wb_domain_writeout_add()
  mm/page-writeback.c: Update comment for BANDWIDTH_INTERVAL
  ...
2024-11-18 09:35:30 -08:00
Linus Torvalds
4eb98b7760 vfs-6.13.mount.api
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Merge tag 'vfs-6.13.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount api conversions from Christian Brauner:
 "Convert adfs, affs, befs, hfs, hfsplus, jfs, and hpfs to the new mount
  api"

* tag 'vfs-6.13.mount.api' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  efs: fix the efs new mount api implementation
  ubifs: Convert ubifs to use the new mount API
  hpfs: convert hpfs to use the new mount api
  jfs: convert jfs to use the new mount api
  hfsplus: convert hfsplus to use the new mount api
  hfs: convert hfs to use the new mount api
  befs: convert befs to use the new mount api
  affs: convert affs to use the new mount api
  adfs: convert adfs to use the new mount api
2024-11-18 09:33:34 -08:00
Linus Torvalds
6ac81fd55e vfs-6.13.mgtime
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Merge tag 'vfs-6.13.mgtime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs multigrain timestamps from Christian Brauner:
 "This is another try at implementing multigrain timestamps. This time
  with significant help from the timekeeping maintainers to reduce the
  performance impact.

  Thomas provided a base branch that contains the required timekeeping
  interfaces for the VFS. It serves as the base for the multi-grain
  timestamp work:

   - Multigrain timestamps allow the kernel to use fine-grained
     timestamps when an inode's attributes is being actively observed
     via ->getattr(). With this support, it's possible for a file to get
     a fine-grained timestamp, and another modified after it to get a
     coarse-grained stamp that is earlier than the fine-grained time. If
     this happens then the files can appear to have been modified in
     reverse order, which breaks VFS ordering guarantees.

     To prevent this, a floor value is maintained for multigrain
     timestamps. Whenever a fine-grained timestamp is handed out, record
     it, and when later coarse-grained stamps are handed out, ensure
     they are not earlier than that value. If the coarse-grained
     timestamp is earlier than the fine-grained floor, return the floor
     value instead.

     The timekeeper changes add a static singleton atomic64_t into
     timekeeper.c that is used to keep track of the latest fine-grained
     time ever handed out. This is tracked as a monotonic ktime_t value
     to ensure that it isn't affected by clock jumps. Because it is
     updated at different times than the rest of the timekeeper object,
     the floor value is managed independently of the timekeeper via a
     cmpxchg() operation, and sits on its own cacheline.

     Two new public timekeeper interfaces are added:

      (1) ktime_get_coarse_real_ts64_mg() fills a timespec64 with the
          later of the coarse-grained clock and the floor time

      (2) ktime_get_real_ts64_mg() gets the fine-grained clock value,
          and tries to swap it into the floor. A timespec64 is filled
          with the result.

   - The VFS has always used coarse-grained timestamps when updating the
     ctime and mtime after a change. This has the benefit of allowing
     filesystems to optimize away a lot metadata updates, down to around
     1 per jiffy, even when a file is under heavy writes.

     Unfortunately, this has always been an issue when we're exporting
     via NFSv3, which relies on timestamps to validate caches. A lot of
     changes can happen in a jiffy, so timestamps aren't sufficient to
     help the client decide when to invalidate the cache. Even with
     NFSv4, a lot of exported filesystems don't properly support a
     change attribute and are subject to the same problems with
     timestamp granularity. Other applications have similar issues with
     timestamps (e.g backup applications).

     If we were to always use fine-grained timestamps, that would
     improve the situation, but that becomes rather expensive, as the
     underlying filesystem would have to log a lot more metadata
     updates.

     This adds a way to only use fine-grained timestamps when they are
     being actively queried. Use the (unused) top bit in
     inode->i_ctime_nsec as a flag that indicates whether the current
     timestamps have been queried via stat() or the like. When it's set,
     we allow the kernel to use a fine-grained timestamp iff it's
     necessary to make the ctime show a different value.

     This solves the problem of being able to distinguish the timestamp
     between updates, but introduces a new problem: it's now possible
     for a file being changed to get a fine-grained timestamp. A file
     that is altered just a bit later can then get a coarse-grained one
     that appears older than the earlier fine-grained time. This
     violates timestamp ordering guarantees.

     This is where the earlier mentioned timkeeping interfaces help. A
     global monotonic atomic64_t value is kept that acts as a timestamp
     floor. When we go to stamp a file, we first get the latter of the
     current floor value and the current coarse-grained time. If the
     inode ctime hasn't been queried then we just attempt to stamp it
     with that value.

     If it has been queried, then first see whether the current coarse
     time is later than the existing ctime. If it is, then we accept
     that value. If it isn't, then we get a fine-grained time and try to
     swap that into the global floor. Whether that succeeds or fails, we
     take the resulting floor time, convert it to realtime and try to
     swap that into the ctime.

     We take the result of the ctime swap whether it succeeds or fails,
     since either is just as valid.

     Filesystems can opt into this by setting the FS_MGTIME fstype flag.
     Others should be unaffected (other than being subject to the same
     floor value as multigrain filesystems)"

* tag 'vfs-6.13.mgtime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: reduce pointer chasing in is_mgtime() test
  tmpfs: add support for multigrain timestamps
  btrfs: convert to multigrain timestamps
  ext4: switch to multigrain timestamps
  xfs: switch to multigrain timestamps
  Documentation: add a new file documenting multigrain timestamps
  fs: add percpu counters for significant multigrain timestamp events
  fs: tracepoints around multigrain timestamp events
  fs: handle delegated timestamps in setattr_copy_mgtime
  timekeeping: Add percpu counter for tracking floor swap events
  timekeeping: Add interfaces for handling timestamps with a floor value
  fs: have setattr_copy handle multigrain timestamps appropriately
  fs: add infrastructure for multigrain timestamps
2024-11-18 09:15:39 -08:00
Borislav Petkov (AMD)
1b38da0115 Merge branch 'edac-misc' into edac-updates
* edac-misc:
  MAINTAINERS: Change FSL DDR EDAC maintainership
  RAS/AMD/ATL: Add debug prints for DF register reads
  EDAC/bluefield: Use Arm SMC for EMI access on BlueField-2
  EDAC/bluefield: Fix potential integer overflow
  EDAC/igen6: Add Intel Panther Lake-H SoCs support

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
2024-11-18 11:33:23 +01:00