- Support for the Armv8.9 Permission Indirection Extensions. While this
feature doesn't add new functionality, it enables future support for
Guarded Control Stacks (GCS) and Permission Overlays.
- User-space support for the Armv8.8 memcpy/memset instructions.
- arm64 perf: support the HiSilicon SoC uncore PMU, Arm CMN sysfs
identifier, support for the NXP i.MX9 SoC DDRC PMU, fixes and
cleanups.
- Removal of superfluous ISBs on context switch (following retrospective
architecture tightening).
- Decode the ISS2 register during faults for additional information to
help with debugging.
- KPTI clean-up/simplification of the trampoline exit code.
- Addressing several -Wmissing-prototype warnings.
- Kselftest improvements for signal handling and ptrace.
- Fix TPIDR2_EL0 restoring on sigreturn
- Clean-up, robustness improvements of the module allocation code.
- More sysreg conversions to the automatic register/bitfields
generation.
- CPU capabilities handling cleanup.
- Arm documentation updates: ACPI, ptdump.
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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:
"Notable features are user-space support for the memcpy/memset
instructions and the permission indirection extension.
- Support for the Armv8.9 Permission Indirection Extensions. While
this feature doesn't add new functionality, it enables future
support for Guarded Control Stacks (GCS) and Permission Overlays
- User-space support for the Armv8.8 memcpy/memset instructions
- arm64 perf: support the HiSilicon SoC uncore PMU, Arm CMN sysfs
identifier, support for the NXP i.MX9 SoC DDRC PMU, fixes and
cleanups
- Removal of superfluous ISBs on context switch (following
retrospective architecture tightening)
- Decode the ISS2 register during faults for additional information
to help with debugging
- KPTI clean-up/simplification of the trampoline exit code
- Addressing several -Wmissing-prototype warnings
- Kselftest improvements for signal handling and ptrace
- Fix TPIDR2_EL0 restoring on sigreturn
- Clean-up, robustness improvements of the module allocation code
- More sysreg conversions to the automatic register/bitfields
generation
- CPU capabilities handling cleanup
- Arm documentation updates: ACPI, ptdump"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (124 commits)
kselftest/arm64: Add a test case for TPIDR2 restore
arm64/signal: Restore TPIDR2 register rather than memory state
arm64: alternatives: make clean_dcache_range_nopatch() noinstr-safe
Documentation/arm64: Add ptdump documentation
arm64: hibernate: remove WARN_ON in save_processor_state
kselftest/arm64: Log signal code and address for unexpected signals
docs: perf: Fix warning from 'make htmldocs' in hisi-pmu.rst
arm64/fpsimd: Exit streaming mode when flushing tasks
docs: perf: Add new description for HiSilicon UC PMU
drivers/perf: hisi: Add support for HiSilicon UC PMU driver
drivers/perf: hisi: Add support for HiSilicon H60PA and PAv3 PMU driver
perf: arm_cspmu: Add missing MODULE_DEVICE_TABLE
perf/arm-cmn: Add sysfs identifier
perf/arm-cmn: Revamp model detection
perf/arm_dmc620: Add cpumask
arm64: mm: fix VA-range sanity check
arm64/mm: remove now-superfluous ISBs from TTBR writes
Documentation/arm64: Update ACPI tables from BBR
Documentation/arm64: Update references in arm-acpi
Documentation/arm64: Update ARM and arch reference
...
of the ERMS CPUID flag. AMD decoupled them with a BIOS setting so decouple
that dependency in the kernel code too
- Teach the alternatives machinery to handle relocations
- Make debug_alternative accept flags in order to see only that set of
patching done one is interested in
- Other fixes, cleanups and optimizations to the patching code
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Merge tag 'x86_alternatives_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 instruction alternatives updates from Borislav Petkov:
- Up until now the Fast Short Rep Mov optimizations implied the
presence of the ERMS CPUID flag. AMD decoupled them with a BIOS
setting so decouple that dependency in the kernel code too
- Teach the alternatives machinery to handle relocations
- Make debug_alternative accept flags in order to see only that set of
patching done one is interested in
- Other fixes, cleanups and optimizations to the patching code
* tag 'x86_alternatives_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/alternative: PAUSE is not a NOP
x86/alternatives: Add cond_resched() to text_poke_bp_batch()
x86/nospec: Shorten RESET_CALL_DEPTH
x86/alternatives: Add longer 64-bit NOPs
x86/alternatives: Fix section mismatch warnings
x86/alternative: Optimize returns patching
x86/alternative: Complicate optimize_nops() some more
x86/alternative: Rewrite optimize_nops() some
x86/lib/memmove: Decouple ERMS from FSRM
x86/alternative: Support relocations in alternatives
x86/alternative: Make debug-alternative selective
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Merge tag 'for-6.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Mainly core changes, refactoring and optimizations.
Performance is improved in some areas, overall there may be a
cumulative improvement due to refactoring that removed lookups in the
IO path or simplified IO submission tracking.
Core:
- submit IO synchronously for fast checksums (crc32c and xxhash),
remove high priority worker kthread
- read extent buffer in one go, simplify IO tracking, bio submission
and locking
- remove additional tracking of redirtied extent buffers, originally
added for zoned mode but actually not needed
- track ordered extent pointer in bio to avoid rbtree lookups during
IO
- scrub, use recovered data stripes as cache to avoid unnecessary
read
- in zoned mode, optimize logical to physical mappings of extents
- remove PageError handling, not set by VFS nor writeback
- cleanups, refactoring, better structure packing
- lots of error handling improvements
- more assertions, lockdep annotations
- print assertion failure with the exact line where it happens
- tracepoint updates
- more debugging prints
Performance:
- speedup in fsync(), better tracking of inode logged status can
avoid transaction commit
- IO path structures track logical offsets in data structures and
does not need to look it up
User visible changes:
- don't commit transaction for every created subvolume, this can
reduce time when many subvolumes are created in a batch
- print affected files when relocation fails
- trigger orphan file cleanup during START_SYNC ioctl
Notable fixes:
- fix crash when disabling quota and relocation
- fix crashes when removing roots from drity list
- fix transacion abort during relocation when converting from newer
profiles not covered by fallback
- in zoned mode, stop reclaiming block groups if filesystem becomes
read-only
- fix rare race condition in tree mod log rewind that can miss some
btree node slots
- with enabled fsverity, drop up-to-date page bit in case the
verification fails"
* tag 'for-6.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (194 commits)
btrfs: fix race between quota disable and relocation
btrfs: add comment to struct btrfs_fs_info::dirty_cowonly_roots
btrfs: fix race when deleting free space root from the dirty cow roots list
btrfs: fix race when deleting quota root from the dirty cow roots list
btrfs: tracepoints: also show actual number of the outstanding extents
btrfs: update i_version in update_dev_time
btrfs: make btrfs_compressed_bioset static
btrfs: add handling for RAID1C23/DUP to btrfs_reduce_alloc_profile
btrfs: scrub: remove btrfs_fs_info::scrub_wr_completion_workers
btrfs: scrub: remove scrub_ctx::csum_list member
btrfs: do not BUG_ON after failure to migrate space during truncation
btrfs: do not BUG_ON on failure to get dir index for new snapshot
btrfs: send: do not BUG_ON() on unexpected symlink data extent
btrfs: do not BUG_ON() when dropping inode items from log root
btrfs: replace BUG_ON() at split_item() with proper error handling
btrfs: do not BUG_ON() on tree mod log failures at btrfs_del_ptr()
btrfs: do not BUG_ON() on tree mod log failures at insert_ptr()
btrfs: do not BUG_ON() on tree mod log failure at insert_new_root()
btrfs: do not BUG_ON() on tree mod log failures at push_nodes_for_insert()
btrfs: abort transaction at update_ref_for_cow() when ref count is zero
...
* arm64/for-next/perf:
docs: perf: Fix warning from 'make htmldocs' in hisi-pmu.rst
docs: perf: Add new description for HiSilicon UC PMU
drivers/perf: hisi: Add support for HiSilicon UC PMU driver
drivers/perf: hisi: Add support for HiSilicon H60PA and PAv3 PMU driver
perf: arm_cspmu: Add missing MODULE_DEVICE_TABLE
perf/arm-cmn: Add sysfs identifier
perf/arm-cmn: Revamp model detection
perf/arm_dmc620: Add cpumask
dt-bindings: perf: fsl-imx-ddr: Add i.MX93 compatible
drivers/perf: imx_ddr: Add support for NXP i.MX9 SoC DDRC PMU driver
perf/arm_cspmu: Decouple APMT dependency
perf/arm_cspmu: Clean up ACPI dependency
ACPI/APMT: Don't register invalid resource
perf/arm_cspmu: Fix event attribute type
perf: arm_cspmu: Set irq affinitiy only if overflow interrupt is used
drivers/perf: hisi: Don't migrate perf to the CPU going to teardown
drivers/perf: apple_m1: Force 63bit counters for M2 CPUs
perf/arm-cmn: Fix DTC reset
perf: qcom_l2_pmu: Make l2_cache_pmu_probe_cluster() more robust
perf/arm-cci: Slightly optimize cci_pmu_sync_counters()
* for-next/kpti:
: Simplify KPTI trampoline exit code
arm64: entry: Simplify tramp_alias macro and tramp_exit routine
arm64: entry: Preserve/restore X29 even for compat tasks
* for-next/missing-proto-warn:
: Address -Wmissing-prototype warnings
arm64: add alt_cb_patch_nops prototype
arm64: move early_brk64 prototype to header
arm64: signal: include asm/exception.h
arm64: kaslr: add kaslr_early_init() declaration
arm64: flush: include linux/libnvdimm.h
arm64: module-plts: inline linux/moduleloader.h
arm64: hide unused is_valid_bugaddr()
arm64: efi: add efi_handle_corrupted_x18 prototype
arm64: cpuidle: fix #ifdef for acpi functions
arm64: kvm: add prototypes for functions called in asm
arm64: spectre: provide prototypes for internal functions
arm64: move cpu_suspend_set_dbg_restorer() prototype to header
arm64: avoid prototype warnings for syscalls
arm64: add scs_patch_vmlinux prototype
arm64: xor-neon: mark xor_arm64_neon_*() static
* for-next/iss2-decode:
: Add decode of ISS2 to data abort reports
arm64/esr: Add decode of ISS2 to data abort reporting
arm64/esr: Use GENMASK() for the ISS mask
* for-next/kselftest:
: Various arm64 kselftest improvements
kselftest/arm64: Log signal code and address for unexpected signals
kselftest/arm64: Add a smoke test for ptracing hardware break/watch points
* for-next/misc:
: Miscellaneous patches
arm64: alternatives: make clean_dcache_range_nopatch() noinstr-safe
arm64: hibernate: remove WARN_ON in save_processor_state
arm64/fpsimd: Exit streaming mode when flushing tasks
arm64: mm: fix VA-range sanity check
arm64/mm: remove now-superfluous ISBs from TTBR writes
arm64: consolidate rox page protection logic
arm64: set __exception_irq_entry with __irq_entry as a default
arm64: syscall: unmask DAIF for tracing status
arm64: lockdep: enable checks for held locks when returning to userspace
arm64/cpucaps: increase string width to properly format cpucaps.h
arm64/cpufeature: Use helper for ECV CNTPOFF cpufeature
* for-next/feat_mops:
: Support for ARMv8.8 memcpy instructions in userspace
kselftest/arm64: add MOPS to hwcap test
arm64: mops: allow disabling MOPS from the kernel command line
arm64: mops: detect and enable FEAT_MOPS
arm64: mops: handle single stepping after MOPS exception
arm64: mops: handle MOPS exceptions
KVM: arm64: hide MOPS from guests
arm64: mops: don't disable host MOPS instructions from EL2
arm64: mops: document boot requirements for MOPS
KVM: arm64: switch HCRX_EL2 between host and guest
arm64: cpufeature: detect FEAT_HCX
KVM: arm64: initialize HCRX_EL2
* for-next/module-alloc:
: Make the arm64 module allocation code more robust (clean-up, VA range expansion)
arm64: module: rework module VA range selection
arm64: module: mandate MODULE_PLTS
arm64: module: move module randomization to module.c
arm64: kaslr: split kaslr/module initialization
arm64: kasan: remove !KASAN_VMALLOC remnants
arm64: module: remove old !KASAN_VMALLOC logic
* for-next/sysreg: (21 commits)
: More sysreg conversions to automatic generation
arm64/sysreg: Convert TRBIDR_EL1 register to automatic generation
arm64/sysreg: Convert TRBTRG_EL1 register to automatic generation
arm64/sysreg: Convert TRBMAR_EL1 register to automatic generation
arm64/sysreg: Convert TRBSR_EL1 register to automatic generation
arm64/sysreg: Convert TRBBASER_EL1 register to automatic generation
arm64/sysreg: Convert TRBPTR_EL1 register to automatic generation
arm64/sysreg: Convert TRBLIMITR_EL1 register to automatic generation
arm64/sysreg: Rename TRBIDR_EL1 fields per auto-gen tools format
arm64/sysreg: Rename TRBTRG_EL1 fields per auto-gen tools format
arm64/sysreg: Rename TRBMAR_EL1 fields per auto-gen tools format
arm64/sysreg: Rename TRBSR_EL1 fields per auto-gen tools format
arm64/sysreg: Rename TRBBASER_EL1 fields per auto-gen tools format
arm64/sysreg: Rename TRBPTR_EL1 fields per auto-gen tools format
arm64/sysreg: Rename TRBLIMITR_EL1 fields per auto-gen tools format
arm64/sysreg: Convert OSECCR_EL1 to automatic generation
arm64/sysreg: Convert OSDTRTX_EL1 to automatic generation
arm64/sysreg: Convert OSDTRRX_EL1 to automatic generation
arm64/sysreg: Convert OSLAR_EL1 to automatic generation
arm64/sysreg: Standardise naming of bitfield constants in OSL[AS]R_EL1
arm64/sysreg: Convert MDSCR_EL1 to automatic register generation
...
* for-next/cpucap:
: arm64 cpucap clean-up
arm64: cpufeature: fold cpus_set_cap() into update_cpu_capabilities()
arm64: cpufeature: use cpucap naming
arm64: alternatives: use cpucap naming
arm64: standardise cpucap bitmap names
* for-next/acpi:
: Various arm64-related ACPI patches
ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()
* for-next/kdump:
: Simplify the crashkernel reservation behaviour of crashkernel=X,high on arm64
arm64: add kdump.rst into index.rst
Documentation: add kdump.rst to present crashkernel reservation on arm64
arm64: kdump: simplify the reservation behaviour of crashkernel=,high
* for-next/acpi-doc:
: Update ACPI documentation for Arm systems
Documentation/arm64: Update ACPI tables from BBR
Documentation/arm64: Update references in arm-acpi
Documentation/arm64: Update ARM and arch reference
* for-next/doc:
: arm64 documentation updates
Documentation/arm64: Add ptdump documentation
* for-next/tpidr2-fix:
: Fix the TPIDR2_EL0 register restoring on sigreturn
kselftest/arm64: Add a test case for TPIDR2 restore
arm64/signal: Restore TPIDR2 register rather than memory state
Due to the fact that TPIDR2 is intended to be managed by libc we don't
currently test modifying it via the signal context since that might
disrupt libc's usage of it and cause instability. We can however test the
opposite case with less risk, modifying TPIDR2 in a signal handler and
making sure that the original value is restored after returning from the
signal handler. Add a test which does this.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230621-arm64-fix-tpidr2-signal-restore-v2-2-c8e8fcc10302@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
mptcp and netfilter.
Current release - regressions:
- netfilter: add NFT_TRANS_PREPARE_ERROR to deal with bound set/chain
- eth: mlx5e:
- fix scheduling of IPsec ASO query while in atomic
- free IRQ rmap and notifier on kernel shutdown
Current release - new code bugs:
- phy: manual remove LEDs to ensure correct ordering
Previous releases - regressions:
- mptcp: fix possible divide by zero in recvmsg()
- dsa: revert "net: phy: dp83867: perform soft reset and retain established link"
Previous releases - always broken:
- sched: netem: acquire qdisc lock in netem_change()
- bpf:
- fix verifier id tracking of scalars on spill
- fix NULL dereference on exceptions
- accept function names that contain dots
- netfilter: disallow element updates of bound anonymous sets
- mptcp: ensure listener is unhashed before updating the sk status
- xfrm:
- add missed call to delete offloaded policies
- fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets
- selftests: fixes for FIPS mode
- dsa: mt7530: fix multiple CPU ports, BPDU and LLDP handling
- eth: sfc: use budget for TX completions
Misc:
- wifi: iwlwifi: add support for SO-F device with PCI id 0x7AF0
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from ipsec, bpf, mptcp and netfilter.
Current release - regressions:
- netfilter: add NFT_TRANS_PREPARE_ERROR to deal with bound set/chain
- eth: mlx5e:
- fix scheduling of IPsec ASO query while in atomic
- free IRQ rmap and notifier on kernel shutdown
Current release - new code bugs:
- phy: manual remove LEDs to ensure correct ordering
Previous releases - regressions:
- mptcp: fix possible divide by zero in recvmsg()
- dsa: revert "net: phy: dp83867: perform soft reset and retain
established link"
Previous releases - always broken:
- sched: netem: acquire qdisc lock in netem_change()
- bpf:
- fix verifier id tracking of scalars on spill
- fix NULL dereference on exceptions
- accept function names that contain dots
- netfilter: disallow element updates of bound anonymous sets
- mptcp: ensure listener is unhashed before updating the sk status
- xfrm:
- add missed call to delete offloaded policies
- fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets
- selftests: fixes for FIPS mode
- dsa: mt7530: fix multiple CPU ports, BPDU and LLDP handling
- eth: sfc: use budget for TX completions
Misc:
- wifi: iwlwifi: add support for SO-F device with PCI id 0x7AF0"
* tag 'net-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (74 commits)
revert "net: align SO_RCVMARK required privileges with SO_MARK"
net: wwan: iosm: Convert single instance struct member to flexible array
sch_netem: acquire qdisc lock in netem_change()
selftests: forwarding: Fix race condition in mirror installation
wifi: mac80211: report all unusable beacon frames
mptcp: ensure listener is unhashed before updating the sk status
mptcp: drop legacy code around RX EOF
mptcp: consolidate fallback and non fallback state machine
mptcp: fix possible list corruption on passive MPJ
mptcp: fix possible divide by zero in recvmsg()
mptcp: handle correctly disconnect() failures
bpf: Force kprobe multi expected_attach_type for kprobe_multi link
bpf/btf: Accept function names that contain dots
Revert "net: phy: dp83867: perform soft reset and retain established link"
net: mdio: fix the wrong parameters
netfilter: nf_tables: Fix for deleting base chains with payload
netfilter: nfnetlink_osf: fix module autoload
netfilter: nf_tables: drop module reference after updating chain
netfilter: nf_tables: disallow timeout for anonymous sets
netfilter: nf_tables: disallow updates of anonymous sets
...
When mirroring to a gretap in hardware the device expects to be
programmed with the egress port and all the encapsulating headers. This
requires the driver to resolve the path the packet will take in the
software data path and program the device accordingly.
If the path cannot be resolved (in this case because of an unresolved
neighbor), then mirror installation fails until the path is resolved.
This results in a race that causes the test to sometimes fail.
Fix this by setting the neighbor's state to permanent in a couple of
tests, so that it is always valid.
Fixes: 35c31d5c32 ("selftests: forwarding: Test mirror-to-gretap w/ UL 802.1d")
Fixes: 239e754af8 ("selftests: forwarding: Test mirror-to-gretap w/ UL 802.1q")
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/268816ac729cb6028c7a34d4dda6f4ec7af55333.1687264607.git.petrm@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-06-21
We've added 7 non-merge commits during the last 14 day(s) which contain
a total of 7 files changed, 181 insertions(+), 15 deletions(-).
The main changes are:
1) Fix a verifier id tracking issue with scalars upon spill,
from Maxim Mikityanskiy.
2) Fix NULL dereference if an exception is generated while a BPF
subprogram is running, from Krister Johansen.
3) Fix a BTF verification failure when compiling kernel with LLVM_IAS=0,
from Florent Revest.
4) Fix expected_attach_type enforcement for kprobe_multi link,
from Jiri Olsa.
5) Fix a bpf_jit_dump issue for x86_64 to pick the correct JITed image,
from Yonghong Song.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Force kprobe multi expected_attach_type for kprobe_multi link
bpf/btf: Accept function names that contain dots
selftests/bpf: add a test for subprogram extables
bpf: ensure main program has an extable
bpf: Fix a bpf_jit_dump issue for x86_64 with sysctl bpf_jit_enable.
selftests/bpf: Add test cases to assert proper ID tracking on spill
bpf: Fix verifier id tracking of scalars on spill
====================
Link: https://lore.kernel.org/r/20230621101116.16122-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This includes a wholesale reversion of the post-6.4 series "make slab shrink
lockless". After input from Dave Chinner it has been decided that we
should go a different way. Thread starts at
https://lkml.kernel.org/r/ZH6K0McWBeCjaf16@dread.disaster.area.
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Merge tag 'mm-hotfixes-stable-2023-06-20-12-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull hotfixes from Andrew Morton:
"19 hotfixes. 8 of these are cc:stable.
This includes a wholesale reversion of the post-6.4 series 'make slab
shrink lockless'. After input from Dave Chinner it has been decided
that we should go a different way [1]"
Link: https://lkml.kernel.org/r/ZH6K0McWBeCjaf16@dread.disaster.area [1]
* tag 'mm-hotfixes-stable-2023-06-20-12-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
selftests/mm: fix cross compilation with LLVM
mailmap: add entries for Ben Dooks
nilfs2: prevent general protection fault in nilfs_clear_dirty_page()
Revert "mm: vmscan: make global slab shrink lockless"
Revert "mm: vmscan: make memcg slab shrink lockless"
Revert "mm: vmscan: add shrinker_srcu_generation"
Revert "mm: shrinkers: make count and scan in shrinker debugfs lockless"
Revert "mm: vmscan: hold write lock to reparent shrinker nr_deferred"
Revert "mm: vmscan: remove shrinker_rwsem from synchronize_shrinkers()"
Revert "mm: shrinkers: convert shrinker_rwsem to mutex"
nilfs2: fix buffer corruption due to concurrent device reads
scripts/gdb: fix SB_* constants parsing
scripts: fix the gfp flags header path in gfp-translate
udmabuf: revert 'Add support for mapping hugepages (v4)'
mm/khugepaged: fix iteration in collapse_file
memfd: check for non-NULL file_seals in memfd_create() syscall
mm/vmalloc: do not output a spurious warning when huge vmalloc() fails
mm/mprotect: fix do_mprotect_pkey() limit check
writeback: fix dereferencing NULL mapping->host on writeback_page_template
- Fix MAINTAINERS file to point to proper mailing list for rtla and rv
The mailing list pointed to linux-trace-devel instead of
linux-trace-kernel. The former is for the tracing libraries
and the latter is for anything in the Linux kernel tree.
The wrong mailing list was used because linux-trace-kernel did not
exist when rtla and rv were created.
- User events:
. Fix matching of dynamic events to their user events
When user writes to dynamic_events file, a lookup of the
registered dynamic events are made, but there were some cases
that a match could be incorrectly made.
. Add auto cleanup of user events
Have the user events automatically get removed when the last
reference (file descriptor) is closed. This was asked for to
prevent leaks of user events hanging around needing admins
to clean them up.
. Add persistent logic (but not let user space use it yet)
In some cases, having a persistent user event (one that does not
get cleaned up automatically) is useful. But there's still
debates about how to expose this to user space. The infrastructure
is added, but the API is not.
. Update the selftests
Update the user event selftests to reflect the above changes.
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Merge tag 'trace-v6.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix MAINTAINERS file to point to proper mailing list for rtla and rv
The mailing list pointed to linux-trace-devel instead of
linux-trace-kernel. The former is for the tracing libraries and the
latter is for anything in the Linux kernel tree. The wrong mailing
list was used because linux-trace-kernel did not exist when rtla and
rv were created.
- User events:
- Fix matching of dynamic events to their user events
When user writes to dynamic_events file, a lookup of the
registered dynamic events is made, but there were some cases that
a match could be incorrectly made.
- Add auto cleanup of user events
Have the user events automatically get removed when the last
reference (file descriptor) is closed. This was asked for to
prevent leaks of user events hanging around needing admins to
clean them up.
- Add persistent logic (but not let user space use it yet)
In some cases, having a persistent user event (one that does not
get cleaned up automatically) is useful. But there's still debates
about how to expose this to user space. The infrastructure is
added, but the API is not.
- Update the selftests
Update the user event selftests to reflect the above changes"
* tag 'trace-v6.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/user_events: Document auto-cleanup and remove dyn_event refs
selftests/user_events: Adapt dyn_test to non-persist events
selftests/user_events: Ensure auto cleanup works as expected
tracing/user_events: Add auto cleanup and future persist flag
tracing/user_events: Track refcount consistently via put/get
tracing/user_events: Store register flags on events
tracing/user_events: Remove user_ns walk for groups
selftests/user_events: Add perf self-test for empty arguments events
selftests/user_events: Clear the events after perf self-test
selftests/user_events: Add ftrace self-test for empty arguments events
tracing/user_events: Fix the incorrect trace record for empty arguments events
tracing: Modify print_fields() for fields output order
tracing/user_events: Handle matching arguments that is null from dyn_events
tracing/user_events: Prevent same name but different args event
tracing/rv/rtla: Update MAINTAINERS file to point to proper mailing list
Currently the MM selftests attempt to work out the target architecture by
using CROSS_COMPILE or otherwise querying the host machine, storing the
target architecture in a variable called MACHINE rather than the usual
ARCH though as far as I can tell (including for x86_64) the value is the
same as we would use for architecture.
When cross compiling with LLVM we don't need a CROSS_COMPILE as LLVM can
support many target architectures in a single build so this logic does not
work, CROSS_COMPILE is not set and we end up selecting tests for the host
rather than target architecture. Fix this by using the more standard ARCH
to describe the architecture, taking it from the environment if specified.
Link: https://lkml.kernel.org/r/20230614-kselftest-mm-llvm-v1-1-180523f277d3@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tom Rix <trix@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Assertions reports are split into two parts, the exact file and location
of the condition and then the stack trace printed from
btrfs_assertfail(). This means all the stack traces report the same line
and this is what's typically reported by various tools, making it harder
to distinguish the reports.
[403.2467] assertion failed: refcount_read(&block_group->refs) == 1, in fs/btrfs/block-group.c:4259
[403.2479] ------------[ cut here ]------------
[403.2484] kernel BUG at fs/btrfs/messages.c:259!
[403.2488] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[403.2493] CPU: 2 PID: 23202 Comm: umount Not tainted 6.2.0-rc4-default+ #67
[403.2499] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552-rebuilt.opensuse.org 04/01/2014
[403.2509] RIP: 0010:btrfs_assertfail+0x19/0x1b [btrfs]
...
[403.2595] Call Trace:
[403.2598] <TASK>
[403.2601] btrfs_free_block_groups.cold+0x52/0xae [btrfs]
[403.2608] close_ctree+0x6c2/0x761 [btrfs]
[403.2613] ? __wait_for_common+0x2b8/0x360
[403.2618] ? btrfs_cleanup_one_transaction.cold+0x7a/0x7a [btrfs]
[403.2626] ? mark_held_locks+0x6b/0x90
[403.2630] ? lockdep_hardirqs_on_prepare+0x13d/0x200
[403.2636] ? __call_rcu_common.constprop.0+0x1ea/0x3d0
[403.2642] ? trace_hardirqs_on+0x2d/0x110
[403.2646] ? __call_rcu_common.constprop.0+0x1ea/0x3d0
[403.2652] generic_shutdown_super+0xb0/0x1c0
[403.2657] kill_anon_super+0x1e/0x40
[403.2662] btrfs_kill_super+0x25/0x30 [btrfs]
[403.2668] deactivate_locked_super+0x4c/0xc0
By making btrfs_assertfail a macro we'll get the same line number for
the BUG output:
[63.5736] assertion failed: 0, in fs/btrfs/super.c:1572
[63.5758] ------------[ cut here ]------------
[63.5782] kernel BUG at fs/btrfs/super.c:1572!
[63.5807] invalid opcode: 0000 [#2] PREEMPT SMP KASAN
[63.5831] CPU: 0 PID: 859 Comm: mount Tainted: G D 6.3.0-rc7-default+ #2062
[63.5868] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a-rebuilt.opensuse.org 04/01/2014
[63.5905] RIP: 0010:btrfs_mount+0x24/0x30 [btrfs]
[63.5964] RSP: 0018:ffff88800e69fcd8 EFLAGS: 00010246
[63.5982] RAX: 000000000000002d RBX: ffff888008fc1400 RCX: 0000000000000000
[63.6004] RDX: 0000000000000000 RSI: ffffffffb90fd868 RDI: ffffffffbcc3ff20
[63.6026] RBP: ffffffffc081b200 R08: 0000000000000001 R09: ffff88800e69fa27
[63.6046] R10: ffffed1001cd3f44 R11: 0000000000000001 R12: ffff888005a3c370
[63.6062] R13: ffffffffc058e830 R14: 0000000000000000 R15: 00000000ffffffff
[63.6081] FS: 00007f7b3561f800(0000) GS:ffff88806c600000(0000) knlGS:0000000000000000
[63.6105] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[63.6120] CR2: 00007fff83726e10 CR3: 0000000002a9e000 CR4: 00000000000006b0
[63.6137] Call Trace:
[63.6143] <TASK>
[63.6148] legacy_get_tree+0x80/0xd0
[63.6158] vfs_get_tree+0x43/0x120
[63.6166] do_new_mount+0x1f3/0x3d0
[63.6176] ? do_add_mount+0x140/0x140
[63.6187] ? cap_capable+0xa4/0xe0
[63.6197] path_mount+0x223/0xc10
This comes at a cost of bloating the final btrfs.ko module due all the
inlining, as long as assertions are compiled in. This is a must for
debugging builds but this is often enabled on release builds too.
Release build:
text data bss dec hex filename
1251676 20317 16088 1288081 13a791 pre/btrfs.ko
1260612 29473 16088 1306173 13ee3d post/btrfs.ko
DELTA: +8936
CC: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: David Sterba <dsterba@suse.com>
There are some MD5 tests which fail when the kernel is in FIPS mode,
since MD5 is not FIPS compliant. Add a check and only run those tests
if FIPS mode is not enabled.
Fixes: f0bee1ebb5 ("fcnal-test: Add TCP MD5 tests")
Fixes: 5cad8bce26 ("fcnal-test: Add TCP MD5 tests for VRF")
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Magali Lemes <magali.lemes@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The vrf-xfrm-tests tests use the hmac(md5) and cbc(des3_ede)
algorithms for performing authentication and encryption, respectively.
This causes the tests to fail when fips=1 is set, since these algorithms
are not allowed in FIPS mode. Therefore, switch from hmac(md5) and
cbc(des3_ede) to hmac(sha1) and cbc(aes), which are FIPS compliant.
Fixes: 3f251d7411 ("selftests: Add tests for vrf and xfrms")
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Magali Lemes <magali.lemes@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
TLS selftests use the ChaCha20-Poly1305 and SM4 algorithms, which are not
FIPS compliant. When fips=1, this set of tests fails. Add a check and only
run these tests if not in FIPS mode.
Fixes: 4f336e88a8 ("selftests/tls: add CHACHA20-POLY1305 to tls selftests")
Fixes: e506342a03 ("selftests/tls: add SM4 GCM/CCM to tls selftests")
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Magali Lemes <magali.lemes@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Before executing each test from a fixture, FIXTURE_SETUP is run once.
When SKIP is used in FIXTURE_SETUP, the setup function returns early
but the test still proceeds to run, unless another SKIP macro is used
within the test definition, leading to some code repetition. Therefore,
allow tests to be skipped directly from the setup function.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Magali Lemes <magali.lemes@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests excluded - we have 58 patches and diff of +442/-199,
which isn't really small but perhaps with the exception of
the WiFi locking change it's old(ish) bugs.
We have no known problems with v6.4.
The selftest changes are rather large as MPTCP folks try to apply
Greg's guidance that selftest from torvalds/linux should be able
to run against stable kernels.
Last thing I should call out is the DCCP/UDP-lite deprecation notices,
we are fairly sure those are dead, but if we're wrong reverting them
back in won't be fun.
Current release - regressions:
- wifi:
- cfg80211: fix double lock bug in reg_wdev_chan_valid()
- iwlwifi: mvm: spin_lock_bh() to fix lockdep regression
Current release - new code bugs:
- handshake: remove fput() that causes use-after-free
Previous releases - regressions:
- sched: cls_u32: fix reference counter leak leading to overflow
- sched: cls_api: fix lockup on flushing explicitly created chain
Previous releases - always broken:
- nf_tables: integrate pipapo into commit protocol
- nf_tables: incorrect error path handling with NFT_MSG_NEWRULE,
fix dangling pointer on failure
- ping6: fix send to link-local addresses with VRF
- sched: act_pedit: parse L3 header for L4 offset, the skb may
not have the offset saved
- sched: act_ct: fix promotion of offloaded unreplied tuple
- sched: refuse to destroy an ingress and clsact Qdiscs if there
are lockless change operations in flight
- wifi: mac80211: fix handful of bugs in multi-link operation
- ipvlan: fix bound dev checking for IPv6 l3s mode
- eth: enetc: correct the indexes of highest and 2nd highest TCs
- eth: ice: fix XDP memory leak when NIC is brought up and down
Misc:
- add deprecation notices for UDP-lite and DCCP
- selftests: mptcp: skip tests not supported by old kernels
- sctp: handle invalid error codes without calling BUG()
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless, and netfilter.
Selftests excluded - we have 58 patches and diff of +442/-199, which
isn't really small but perhaps with the exception of the WiFi locking
change it's old(ish) bugs.
We have no known problems with v6.4.
The selftest changes are rather large as MPTCP folks try to apply
Greg's guidance that selftest from torvalds/linux should be able to
run against stable kernels.
Last thing I should call out is the DCCP/UDP-lite deprecation notices.
We are fairly sure those are dead, but if we're wrong reverting them
back in won't be fun.
Current release - regressions:
- wifi:
- cfg80211: fix double lock bug in reg_wdev_chan_valid()
- iwlwifi: mvm: spin_lock_bh() to fix lockdep regression
Current release - new code bugs:
- handshake: remove fput() that causes use-after-free
Previous releases - regressions:
- sched: cls_u32: fix reference counter leak leading to overflow
- sched: cls_api: fix lockup on flushing explicitly created chain
Previous releases - always broken:
- nf_tables: integrate pipapo into commit protocol
- nf_tables: incorrect error path handling with NFT_MSG_NEWRULE, fix
dangling pointer on failure
- ping6: fix send to link-local addresses with VRF
- sched: act_pedit: parse L3 header for L4 offset, the skb may not
have the offset saved
- sched: act_ct: fix promotion of offloaded unreplied tuple
- sched: refuse to destroy an ingress and clsact Qdiscs if there are
lockless change operations in flight
- wifi: mac80211: fix handful of bugs in multi-link operation
- ipvlan: fix bound dev checking for IPv6 l3s mode
- eth: enetc: correct the indexes of highest and 2nd highest TCs
- eth: ice: fix XDP memory leak when NIC is brought up and down
Misc:
- add deprecation notices for UDP-lite and DCCP
- selftests: mptcp: skip tests not supported by old kernels
- sctp: handle invalid error codes without calling BUG()"
* tag 'net-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits)
dccp: Print deprecation notice.
udplite: Print deprecation notice.
octeon_ep: Add missing check for ioremap
selftests/ptp: Fix timestamp printf format for PTP_SYS_OFFSET
net: ethernet: stmicro: stmmac: fix possible memory leak in __stmmac_open
net: tipc: resize nlattr array to correct size
sfc: fix XDP queues mode with legacy IRQ
net: macsec: fix double free of percpu stats
net: lapbether: only support ethernet devices
MAINTAINERS: add reviewers for SMC Sockets
s390/ism: Fix trying to free already-freed IRQ by repeated ism_dev_exit()
net: dsa: felix: fix taprio guard band overflow at 10Mbps with jumbo frames
net/sched: cls_api: Fix lockup on flushing explicitly created chain
ice: Fix ice module unload
net/handshake: remove fput() that causes use-after-free
selftests: forwarding: hw_stats_l3: Set addrgenmode in a separate step
net/sched: qdisc_destroy() old ingress and clsact Qdiscs before grafting
net/sched: Refactor qdisc_graft() for ingress and clsact Qdiscs
net/sched: act_ct: Fix promotion of offloaded unreplied tuple
wifi: iwlwifi: mvm: spin_lock_bh() to fix lockdep regression
...
Previously, timestamps were printed using "%lld.%u" which is incorrect
for nanosecond values lower than 100,000,000 as they're fractional
digits, therefore leading zeros are meaningful.
This patch changes the format strings to "%lld.%09u" in order to add
leading zeros to the nanosecond value.
Fixes: 568ebc5985 ("ptp: add the PTP_SYS_OFFSET ioctl to the testptp program")
Fixes: 4ec54f9573 ("ptp: Fix compiler warnings in the testptp utility")
Fixes: 6ab0e475f1 ("Documentation: fix misc. warnings")
Signed-off-by: Alex Maftei <alex.maftei@amd.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/20230615083404.57112-1-alex.maftei@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Now that user_events does not honor persist events the dynamic_events
file cannot be easily used to test parsing and matching cases.
Update dyn_test to use the direct ABI file instead of dynamic_events so
that we still have testing coverage until persist events and
dynamic_events file integration has been decided.
Link: https://lkml.kernel.org/r/20230614163336.5797-6-beaub@linux.microsoft.com
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
User events now auto cleanup upon the last reference put. Update
ftrace_test to ensure this works as expected. Ensure EBUSY delays
while event is being deleted do not cause transient failures by
waiting and re-attempting.
Link: https://lkml.kernel.org/r/20230614163336.5797-5-beaub@linux.microsoft.com
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tests to ensure events that has empty arguments can input trace record
correctly when using perf.
Link: https://lkml.kernel.org/r/20230606062027.1008398-5-sunliming@kylinos.cn
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
When the self test is completed, perf self-test left the user events not to
be cleared. Clear the events by unregister and delete the event.
Link: https://lkml.kernel.org/r/20230606062027.1008398-4-sunliming@kylinos.cn
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tests to ensure events that has empty arguments can input trace record
correctly when using ftrace.
Link: https://lkml.kernel.org/r/20230606062027.1008398-3-sunliming@kylinos.cn
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
User processes register name_args for events. If the same name but different
args event are registered. The trace outputs of second event are printed
as the first event. This is incorrect.
Return EADDRINUSE back to the user process if the same name but different args
event has being registered.
Link: https://lore.kernel.org/linux-trace-kernel/20230529032100.286534-1-sunliming@kylinos.cn
Signed-off-by: sunliming <sunliming@kylinos.cn>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Setting the IPv6 address generation mode of a net device during its
creation never worked, but after commit b0ad3c1790 ("rtnetlink: call
validate_linkmsg in rtnl_create_link") it explicitly fails [1]. The
failure is caused by the fact that validate_linkmsg() is called before
the net device is registered, when it still does not have an 'inet6_dev'.
Likewise, raising the net device before setting the address generation
mode is meaningless, because by the time the mode is set, the address
has already been generated.
Therefore, fix the test to first create the net device, then set its
IPv6 address generation mode and finally bring it up.
[1]
# ip link add name mydev addrgenmode eui64 type dummy
RTNETLINK answers: Address family not supported by protocol
Fixes: ba95e79309 ("selftests: forwarding: hw_stats_l3: Add a new test")
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/f3b05d85b2bc0c3d6168fe8f7207c6c8365703db.1686580046.git.petrm@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Some qdiscs and classifiers have recently been retired from kernel.
However, tc-testing config is still cluttered with them which causes noise
when using merge_config.sh script to update existing config for tc-testing
compatibility. Remove the config settings for affected qdiscs and
classifiers.
Fixes: fb38306ceb ("net/sched: Retire ATM qdisc")
Fixes: 051d442098 ("net/sched: Retire CBQ qdisc")
Fixes: bbe77c14ee ("net/sched: Retire dsmark qdisc")
Fixes: 265b4da82d ("net/sched: Retire rsvp classifier")
Fixes: 8c710f7525 ("net/sched: Retire tcindex classifier")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Setting very small value of db like 10ms introduces rounding errors when
converting to/from jiffies on some kernel configs. For example, on 250hz
the actual value will be set to 12ms which causes the test to fail:
# $ sudo ./tdc.py -d eth2 -e 3410
# -- ns/SubPlugin.__init__
# Test 3410: Create SFB with db setting
#
# All test results:
#
# 1..1
# not ok 1 3410 - Create SFB with db setting
# Could not match regex pattern. Verify command output:
# qdisc sfb 1: root refcnt 2 rehash 600s db 12ms limit 1000p max 25p target 20p increment 0.000503548 decrement 4.57771e-05 penalty_rate 10pps penalty_burst 20p
Set the value to 100ms instead which currently seem to work on 100hz,
250hz, 300hz and 1000hz kernel configs.
Fixes: 6ad92dc56f ("selftests/tc-testing: add selftests for sfb qdisc")
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of a mix of subflows in v4 and v6 by the
in-kernel PM introduced by commit b9d69db87f ("mptcp: let the
in-kernel PM use mixed IPv4 and IPv6 addresses").
It looks like there is no external sign we can use to predict the
expected behaviour. Instead of accepting different behaviours and thus
not really checking for the expected behaviour, we are looking here for
a specific kernel version. That's not ideal but it looks better than
removing the test because it cannot support older kernel versions.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: ad3493746e ("selftests: mptcp: add test-cases for mixed v4/v6 subflows")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The alignment was different from the other tests because tabs were used
instead of spaces.
While at it, also use 'echo' instead of 'printf' to print the result to
keep the same style as done in the other sub-tests. And, even if it
should be better with, also remove 'stdbuf' and sed's '--unbuffered'
option because they are not used in the other subtests and they are not
available when using a minimal environment with busybox.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 178d023208 ("selftests: mptcp: listener test for in-kernel PM")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of PM listener events introduced by commit
f8c9dfbd87 ("mptcp: add pm listener events").
It is possible to look for "mptcp_event_pm_listener" in kallsyms to know
in advance if the kernel supports this feature.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 178d023208 ("selftests: mptcp: listener test for in-kernel PM")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of sending an MP_PRIO signal for the initial
subflow, introduced by commit c157bbe776 ("mptcp: allow the in kernel
PM to set MPC subflow priority").
It is possible to look for "mptcp_subflow_send_ack" in kallsyms because
it was needed to introduce the mentioned feature. So we can know in
advance if the feature is supported instead of trying and accepting any
results.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 914f6a59b1 ("selftests: mptcp: add MPC backup tests")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of the MP_FAIL / infinite mapping introduced
by commit 1e39e5a32a ("mptcp: infinite mapping sending") and the
following ones.
It is possible to look for one of the infinite mapping counters to know
in advance if the this feature is available.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: b6e074e171 ("selftests: mptcp: add infinite map testcase")
Cc: stable@vger.kernel.org
Fixes: 2ba18161d4 ("selftests: mptcp: add MP_FAIL reset testcase")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of the userspace PM introduced by commit
4638de5aef ("mptcp: handle local addrs announced by userspace PMs")
and the following ones.
It is possible to look for the MPTCP pm_type's sysctl knob to know in
advance if the userspace PM is available.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 5ac1d2d634 ("selftests: mptcp: Add tests for userspace PM type")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of the fullmesh flag for the in-kernel PM
introduced by commit 2843ff6f36 ("mptcp: remote addresses fullmesh")
and commit 1a0d6136c5 ("mptcp: local addresses fullmesh").
It looks like there is no easy external sign we can use to predict the
expected behaviour. We could add the flag and then check if it has been
added but for that, and for each fullmesh test, we would need to setup a
new environment, do the checks, clean it and then only start the test
from yet another clean environment. To keep it simple and avoid
introducing new issues, we look for a specific kernel version. That's
not ideal but an acceptable solution for this case.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 6a0653b96f ("selftests: mptcp: add fullmesh setting tests")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
Commit bccefb7624 ("selftests: mptcp: simplify pm_nl_change_endpoint")
has simplified the way the backup flag is set on an endpoint. Instead of
doing:
./pm_nl_ctl set 10.0.2.1 flags backup
Now we do:
./pm_nl_ctl set id 1 flags backup
The new way is easier to maintain but it is also incompatible with older
kernels not supporting the implicit endpoints putting in place the
infrastructure to set flags per ID, hence the second Fixes tag.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: bccefb7624 ("selftests: mptcp: simplify pm_nl_change_endpoint")
Cc: stable@vger.kernel.org
Fixes: 4cf86ae84c ("mptcp: strict local address ID selection")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of the implicit endpoints introduced by
commit d045b9eb95 ("mptcp: introduce implicit endpoints").
It is possible to look for "mptcp_subflow_send_ack" in kallsyms because
it was needed to introduce the mentioned feature. So we can know in
advance if the feature is supported instead of trying and accepting any
results.
Note that here and in the following commits, we re-do the same check for
each sub-test of the same function for a few reasons. The main one is
not to break the ID assign to each test in order to be able to easily
compare results between different kernel versions. Also, we can still
run a specific test even if it is skipped. Another reason is that it
makes it clear during the review that a specific subtest will be skipped
or not under certain conditions. At the end, it looks OK to call the
exact same helper multiple times: it is not a critical path and it is
the same code that is executed, not really more cases to maintain.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 69c6ce7b6e ("selftests: mptcp: add implicit endpoint test case")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
At some points, a new feature caused internal behaviour changes we are
verifying in the selftests, see the Fixes tag below. It was not a UAPI
change but because in these selftests, we check some internal
behaviours, it is normal we have to adapt them from time to time after
having added some features.
It looks like there is no external sign we can use to predict the
expected behaviour. Instead of accepting different behaviours and thus
not really checking for the expected behaviour, we are looking here for
a specific kernel version. That's not ideal but it looks better than
removing the test because it cannot support older kernel versions.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 6fa0174a7c ("mptcp: more careful RM_ADDR generation")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the support of MP_FASTCLOSE introduced in commit
f284c0c773 ("mptcp: implement fastclose xmit path").
If the MIB counter is not available, the test cannot be verified and the
behaviour will not be the expected one. So we can skip the test if the
counter is missing.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 01542c9bf9 ("selftests: mptcp: add fastclose testcase")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
At some points, a new feature caused internal behaviour changes we are
verifying in the selftests, see the Fixes tag below. It was not a uAPI
change but because in these selftests, we check some internal
behaviours, it is normal we have to adapt them from time to time after
having added some features.
It is possible to look for "mptcp_pm_subflow_check_next" in kallsyms
because it was needed to introduce the mentioned feature. So we can know
in advance what the behaviour we are expecting here instead of
supporting the two behaviours.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 86e39e0448 ("mptcp: keep track of local endpoint still available for each msk")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
Some tests are using IPTables and/or TC commands to force some
behaviours. If one of these commands fails -- likely because some
features are not available due to missing kernel config -- we should
intercept the error and skip the tests requiring these features.
Note that if we expect to have these features available and if
SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES env var is set to 1, the tests
will be marked as failed instead of skipped.
This patch also replaces the 'exit 1' by 'return 1' not to stop the
selftest in the middle without the conclusion if there is an issue with
NF or TC.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 8d014eaa92 ("selftests: mptcp: add ADD_ADDR timeout test case")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the MPTCP MIB counters introduced in commit fc518953bc
("mptcp: add and use MIB counter infrastructure") and more later. The
MPTCP Join selftest heavily relies on these counters.
If a counter is not supported by the kernel, it is not displayed when
using 'nstat -z'. We can then detect that and skip the verification. A
new helper (get_counter()) has been added to do the required checks and
return an error if the counter is not available.
Note that if we expect to have these features available and if
SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES env var is set to 1, the tests
will be marked as failed instead of skipped.
This new helper also makes sure we get the exact counter we want to
avoid issues we had in the past, e.g. with MPTcpExtRmAddr and
MPTcpExtRmAddrDrop sharing the same prefix. While at it, we uniform the
way we fetch a MIB counter.
Note for the backports: we rarely change these modified blocks so if
there is are conflicts, it is very likely because a counter is not used
in the older kernels and we don't need that chunk.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: b08fbf2410 ("selftests: add test-cases for MPTCP MP_JOIN")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
Here are some helpers that will be used to mark subtests as skipped if a
feature is not supported. Marking as a fix for the commit introducing
this selftest to help with the backports.
While at it, also check if kallsyms feature is available as it will also
be used in the following commits to check if MPTCP features are
available before starting a test.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: b08fbf2410 ("selftests: add test-cases for MPTCP MP_JOIN")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
IPTables commands using 'iptables-nft' fail on old kernels, at least
5.15 because it doesn't see the default IPTables chains:
$ iptables -L
iptables/1.8.2 Failed to initialize nft: Protocol not supported
As a first step before switching to NFTables, we can use iptables-legacy
if available.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 8d014eaa92 ("selftests: mptcp: add ADD_ADDR timeout test case")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
A new function is now available to easily detect if a feature is
missing by looking at the kernel version. That's clearly not ideal and
this kind of check should be avoided as soon as possible. But sometimes,
there are no external sign that a "feature" is available or not:
internal behaviours can change without modifying the uAPI and these
selftests are verifying the internal behaviours. Sometimes, the only
(easy) way to verify if the feature is present is to run the test but
then the validation cannot determine if there is a failure with the
feature or if the feature is missing. Then it looks better to check the
kernel version instead of having tests that can never fail. In any case,
we need a solution not to have a whole selftest being marked as failed
just because one sub-test has failed.
Note that this env var car be set to 1 not to do such check and run the
linked sub-test: SELFTESTS_MPTCP_LIB_NO_KVERSION_CHECK.
This new helper is going to be used in the following commits. In order
to ease the backport of such future patches, it would be good if this
patch is backported up to the introduction of MPTCP selftests, hence the
Fixes tag below: this type of check was supposed to be done from the
beginning.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 048d19d444 ("mptcp: add basic kselftest for mptcp")
Cc: stable@vger.kernel.org
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
introduced during this -rc cycle or which were considered inappropriate
for a backport.
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Merge tag 'mm-hotfixes-stable-2023-06-12-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"19 hotfixes. 14 are cc:stable and the remainder address issues which
were introduced during this development cycle or which were considered
inappropriate for a backport"
* tag 'mm-hotfixes-stable-2023-06-12-12-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
zswap: do not shrink if cgroup may not zswap
page cache: fix page_cache_next/prev_miss off by one
ocfs2: check new file size on fallocate call
mailmap: add entry for John Keeping
mm/damon/core: fix divide error in damon_nr_accesses_to_accesses_bp()
epoll: ep_autoremove_wake_function should use list_del_init_careful
mm/gup_test: fix ioctl fail for compat task
nilfs2: reject devices with insufficient block count
ocfs2: fix use-after-free when unmounting read-only filesystem
lib/test_vmalloc.c: avoid garbage in page array
nilfs2: fix possible out-of-bounds segment allocation in resize ioctl
riscv/purgatory: remove PGO flags
powerpc/purgatory: remove PGO flags
x86/purgatory: remove PGO flags
kexec: support purgatories with .text.hot sections
mm/uffd: allow vma to merge as much as possible
mm/uffd: fix vma operation where start addr cuts part of vma
radix-tree: move declarations to header
nilfs2: fix incomplete buffer cleanup in nilfs_btnode_abort_change_key()
Linus Torvalds