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2021-11-13Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds6-11/+235
Pull more kvm updates from Paolo Bonzini: "New x86 features: - Guest API and guest kernel support for SEV live migration - SEV and SEV-ES intra-host migration Bugfixes and cleanups for x86: - Fix misuse of gfn-to-pfn cache when recording guest steal time / preempted status - Fix selftests on APICv machines - Fix sparse warnings - Fix detection of KVM features in CPUID - Cleanups for bogus writes to MSR_KVM_PV_EOI_EN - Fixes and cleanups for MSR bitmap handling - Cleanups for INVPCID - Make x86 KVM_SOFT_MAX_VCPUS consistent with other architectures Bugfixes for ARM: - Fix finalization of host stage2 mappings - Tighten the return value of kvm_vcpu_preferred_target() - Make sure the extraction of ESR_ELx.EC is limited to architected bits" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (34 commits) KVM: SEV: unify cgroup cleanup code for svm_vm_migrate_from KVM: x86: move guest_pv_has out of user_access section KVM: x86: Drop arbitrary KVM_SOFT_MAX_VCPUS KVM: Move INVPCID type check from vmx and svm to the common kvm_handle_invpcid() KVM: VMX: Add a helper function to retrieve the GPR index for INVPCID, INVVPID, and INVEPT KVM: nVMX: Clean up x2APIC MSR handling for L2 KVM: VMX: Macrofy the MSR bitmap getters and setters KVM: nVMX: Handle dynamic MSR intercept toggling KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use KVM: x86: Don't update vcpu->arch.pv_eoi.msr_val when a bogus value was written to MSR_KVM_PV_EOI_EN KVM: x86: Rename kvm_lapic_enable_pv_eoi() KVM: x86: Make sure KVM_CPUID_FEATURES really are KVM_CPUID_FEATURES KVM: x86: Add helper to consolidate core logic of SET_CPUID{2} flows kvm: mmu: Use fast PF path for access tracking of huge pages when possible KVM: x86/mmu: Properly dereference rcu-protected TDP MMU sptep iterator KVM: x86: inhibit APICv when KVM_GUESTDBG_BLOCKIRQ active kvm: x86: Convert return type of *is_valid_rdpmc_ecx() to bool KVM: x86: Fix recording of guest steal time / preempted status selftest: KVM: Add intra host migration tests selftest: KVM: Add open sev dev helper ...
2021-11-11Merge tag 'net-5.16-rc1' of ↵Linus Torvalds17-65/+179
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from bpf, can and netfilter. Current release - regressions: - bpf: do not reject when the stack read size is different from the tracked scalar size - net: fix premature exit from NAPI state polling in napi_disable() - riscv, bpf: fix RV32 broken build, and silence RV64 warning Current release - new code bugs: - net: fix possible NULL deref in sock_reserve_memory - amt: fix error return code in amt_init(); fix stopping the workqueue - ax88796c: use the correct ioctl callback Previous releases - always broken: - bpf: stop caching subprog index in the bpf_pseudo_func insn - security: fixups for the security hooks in sctp - nfc: add necessary privilege flags in netlink layer, limit operations to admin only - vsock: prevent unnecessary refcnt inc for non-blocking connect - net/smc: fix sk_refcnt underflow on link down and fallback - nfnetlink_queue: fix OOB when mac header was cleared - can: j1939: ignore invalid messages per standard - bpf, sockmap: - fix race in ingress receive verdict with redirect to self - fix incorrect sk_skb data_end access when src_reg = dst_reg - strparser, and tls are reusing qdisc_skb_cb and colliding - ethtool: fix ethtool msg len calculation for pause stats - vlan: fix a UAF in vlan_dev_real_dev() when ref-holder tries to access an unregistering real_dev - udp6: make encap_rcv() bump the v6 not v4 stats - drv: prestera: add explicit padding to fix m68k build - drv: felix: fix broken VLAN-tagged PTP under VLAN-aware bridge - drv: mvpp2: fix wrong SerDes reconfiguration order Misc & small latecomers: - ipvs: auto-load ipvs on genl access - mctp: sanity check the struct sockaddr_mctp padding fields - libfs: support RENAME_EXCHANGE in simple_rename() - avoid double accounting for pure zerocopy skbs" * tag 'net-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (123 commits) selftests/net: udpgso_bench_rx: fix port argument net: wwan: iosm: fix compilation warning cxgb4: fix eeprom len when diagnostics not implemented net: fix premature exit from NAPI state polling in napi_disable() net/smc: fix sk_refcnt underflow on linkdown and fallback net/mlx5: Lag, fix a potential Oops with mlx5_lag_create_definer() gve: fix unmatched u64_stats_update_end() net: ethernet: lantiq_etop: Fix compilation error selftests: forwarding: Fix packet matching in mirroring selftests vsock: prevent unnecessary refcnt inc for nonblocking connect net: marvell: mvpp2: Fix wrong SerDes reconfiguration order net: ethernet: ti: cpsw_ale: Fix access to un-initialized memory net: stmmac: allow a tc-taprio base-time of zero selftests: net: test_vxlan_under_vrf: fix HV connectivity test net: hns3: allow configure ETS bandwidth of all TCs net: hns3: remove check VF uc mac exist when set by PF net: hns3: fix some mac statistics is always 0 in device version V2 net: hns3: fix kernel crash when unload VF while it is being reset net: hns3: sync rx ring head in echo common pull net: hns3: fix pfc packet number incorrect after querying pfc parameters ...
2021-11-11Merge branch 'kvm-sev-move-context' into kvm-masterPaolo Bonzini6-11/+235
Add support for AMD SEV and SEV-ES intra-host migration support. Intra host migration provides a low-cost mechanism for userspace VMM upgrades. In the common case for intra host migration, we can rely on the normal ioctls for passing data from one VMM to the next. SEV, SEV-ES, and other confidential compute environments make most of this information opaque, and render KVM ioctls such as "KVM_GET_REGS" irrelevant. As a result, we need the ability to pass this opaque metadata from one VMM to the next. The easiest way to do this is to leave this data in the kernel, and transfer ownership of the metadata from one KVM VM (or vCPU) to the next. In-kernel hand off makes it possible to move any data that would be unsafe/impossible for the kernel to hand directly to userspace, and cannot be reproduced using data that can be handed to userspace. Signed-off-by: Paolo Bonzini <[email protected]>
2021-11-11selftest: KVM: Add intra host migration testsPeter Gonda2-1/+205
Adds testcases for intra host migration for SEV and SEV-ES. Also adds locking test to confirm no deadlock exists. Signed-off-by: Peter Gonda <[email protected]> Suggested-by: Sean Christopherson <[email protected]> Cc: Marc Orr <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: David Rientjes <[email protected]> Cc: Brijesh Singh <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: [email protected] Cc: [email protected] Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2021-11-11selftest: KVM: Add open sev dev helperPeter Gonda4-10/+30
Refactors out open path support from open_kvm_dev_path_or_exit() and adds new helper for SEV device path. Signed-off-by: Peter Gonda <[email protected]> Suggested-by: Sean Christopherson <[email protected]> Cc: Marc Orr <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: David Rientjes <[email protected]> Cc: Brijesh Singh <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: [email protected] Cc: [email protected] Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2021-11-11selftests/net: udpgso_bench_rx: fix port argumentWillem de Bruijn1-4/+7
The below commit added optional support for passing a bind address. It configures the sockaddr bind arguments before parsing options and reconfigures on options -b and -4. This broke support for passing port (-p) on its own. Configure sockaddr after parsing all arguments. Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO") Reported-by: Eric Dumazet <[email protected]> Signed-off-by: Willem de Bruijn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-10selftests: forwarding: Fix packet matching in mirroring selftestsPetr Machata5-11/+13
In commit 6de6e46d27ef ("cls_flower: Fix inability to match GRE/IPIP packets"), cls_flower was fixed to match an outer packet of a tunneled packet as would be expected, rather than dissecting to the inner packet and matching on that. This fix uncovered several issues in packet matching in mirroring selftests: - in mirror_gre_bridge_1d_vlan.sh and mirror_gre_vlan_bridge_1q.sh, the vlan_ethtype match is copied around as "ip", even as some of the tests are running over ip6gretap. This is fixed by using an "ipv6" for vlan_ethtype in the ip6gretap tests. - in mirror_gre_changes.sh, a filter to count GRE packets is set up to match TTL of 50. This used to trigger in the offloaded datapath, where the envelope TTL was matched, but not in the software datapath, which considered TTL of the inner packet. Now that both match consistently, all the packets were double-counted. This is fixed by marking the filter as skip_hw, leaving only the SW datapath component active. Fixes: 6de6e46d27ef ("cls_flower: Fix inability to match GRE/IPIP packets") Signed-off-by: Petr Machata <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-10selftests: net: test_vxlan_under_vrf: fix HV connectivity testAndrea Righi1-0/+2
It looks like test_vxlan_under_vrf.sh is always failing to verify the connectivity test during the ping between the two simulated VMs. This is due to the fact that veth-hv in each VM should have a distinct MAC address. Fix by setting a unique MAC address on each simulated VM interface. Without this fix: $ sudo ./tools/testing/selftests/net/test_vxlan_under_vrf.sh Checking HV connectivity [ OK ] Check VM connectivity through VXLAN (underlay in the default VRF) [FAIL] With this fix applied: $ sudo ./tools/testing/selftests/net/test_vxlan_under_vrf.sh Checking HV connectivity [ OK ] Check VM connectivity through VXLAN (underlay in the default VRF) [ OK ] Check VM connectivity through VXLAN (underlay in a VRF) [FAIL] NOTE: the connectivity test with the underlay VRF is still failing; it seems that ARP requests are blocked at the simulated hypervisor level, probably due to some missing ARP forwarding rules. This requires more investigation (in the meantime we may consider to set that test as expected failure - XFAIL). Signed-off-by: Andrea Righi <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-09Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski1-0/+12
Alexei Starovoitov says: ==================== pull-request: bpf 2021-11-09 We've added 7 non-merge commits during the last 3 day(s) which contain a total of 10 files changed, 174 insertions(+), 48 deletions(-). The main changes are: 1) Various sockmap fixes, from John and Jussi. 2) Fix out-of-bound issue with bpf_pseudo_func, from Martin. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf, sockmap: sk_skb data_end access incorrect when src_reg = dst_reg bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding bpf, sockmap: Fix race in ingress receive verdict with redirect to self bpf, sockmap: Remove unhash handler for BPF sockmap usage bpf, sockmap: Use stricter sk state checks in sk_lookup_assign bpf: selftest: Trigger a DCE on the whole subprog bpf: Stop caching subprog index in the bpf_pseudo_func insn ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2021-11-09Merge branch 'akpm' (patches from Andrew)Linus Torvalds4-10/+102
Merge more updates from Andrew Morton: "87 patches. Subsystems affected by this patch series: mm (pagecache and hugetlb), procfs, misc, MAINTAINERS, lib, checkpatch, binfmt, kallsyms, ramfs, init, codafs, nilfs2, hfs, crash_dump, signals, seq_file, fork, sysvfs, kcov, gdb, resource, selftests, and ipc" * emailed patches from Andrew Morton <[email protected]>: (87 commits) ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL ipc: check checkpoint_restore_ns_capable() to modify C/R proc files selftests/kselftest/runner/run_one(): allow running non-executable files virtio-mem: disallow mapping virtio-mem memory via /dev/mem kernel/resource: disallow access to exclusive system RAM regions kernel/resource: clean up and optimize iomem_is_exclusive() scripts/gdb: handle split debug for vmlinux kcov: replace local_irq_save() with a local_lock_t kcov: avoid enable+disable interrupts if !in_task() kcov: allocate per-CPU memory on the relevant node Documentation/kcov: define `ip' in the example Documentation/kcov: include types.h in the example sysv: use BUILD_BUG_ON instead of runtime check kernel/fork.c: unshare(): use swap() to make code cleaner seq_file: fix passing wrong private data seq_file: move seq_escape() to a header signal: remove duplicate include in signal.h crash_dump: remove duplicate include in crash_dump.h crash_dump: fix boolreturn.cocci warning hfs/hfsplus: use WARN_ON for sanity check ...
2021-11-09selftests/kselftest/runner/run_one(): allow running non-executable filesSeongJae Park1-10/+18
When running a test program, 'run_one()' checks if the program has the execution permission and fails if it doesn't. However, it's easy to mistakenly lose the permissions, as some common tools like 'diff' don't support the permission change well[1]. Compared to that, making mistakes in the test program's path would only rare, as those are explicitly listed in 'TEST_PROGS'. Therefore, it might make more sense to resolve the situation on our own and run the program. For this reason, this commit makes the test program runner function still print the warning message but to try parsing the interpreter of the program and to explicitly run it with the interpreter, in this case. [1] https://lore.kernel.org/mm-commits/[email protected]/ Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: SeongJae Park <[email protected]> Suggested-by: Greg Kroah-Hartman <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-09procfs: do not list TID 0 in /proc/<pid>/taskFlorian Weimer3-0/+84
If a task exits concurrently, task_pid_nr_ns may return 0. [[email protected]: coding style tweaks] [[email protected]: test that /proc/*/task doesn't contain "0"] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Florian Weimer <[email protected]> Signed-off-by: Alexey Dobriyan <[email protected]> Acked-by: Christian Brauner <[email protected]> Reviewed-by: Alexey Dobriyan <[email protected]> Cc: Kees Cook <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-08Merge tag 'cxl-for-5.16' of ↵Linus Torvalds9-0/+1224
git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl updates from Dan Williams: "More preparation and plumbing work in the CXL subsystem. From an end user perspective the highlight here is lighting up the CXL Persistent Memory related commands (label read / write) with the generic ioctl() front-end in LIBNVDIMM. Otherwise, the ability to instantiate new persistent and volatile memory regions is still on track for v5.17. Summary: - Fix support for platforms that do not enumerate every ACPI0016 (CXL Host Bridge) in the CHBS (ACPI Host Bridge Structure). - Introduce a common pci_find_dvsec_capability() helper, clean up open coded implementations in various drivers. - Add 'cxl_test' for regression testing CXL subsystem ABIs. 'cxl_test' is a module built from tools/testing/cxl/ that mocks up a CXL topology to augment the nascent support for emulation of CXL devices in QEMU. - Convert libnvdimm to use the uuid API. - Complete the definition of CXL namespace labels in libnvdimm. - Tunnel libnvdimm label operations from nd_ioctl() back to the CXL mailbox driver. Enable 'ndctl {read,write}-labels' for CXL. - Continue to sort and refactor functionality into distinct driver and core-infrastructure buckets. For example, mailbox handling is now a generic core capability consumed by the PCI and cxl_test drivers" * tag 'cxl-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (34 commits) ocxl: Use pci core's DVSEC functionality cxl/pci: Use pci core's DVSEC functionality PCI: Add pci_find_dvsec_capability to find designated VSEC cxl/pci: Split cxl_pci_setup_regs() cxl/pci: Add @base to cxl_register_map cxl/pci: Make more use of cxl_register_map cxl/pci: Remove pci request/release regions cxl/pci: Fix NULL vs ERR_PTR confusion cxl/pci: Remove dev_dbg for unknown register blocks cxl/pci: Convert register block identifiers to an enum cxl/acpi: Do not fail cxl_acpi_probe() based on a missing CHBS cxl/pci: Disambiguate cxl_pci further from cxl_mem Documentation/cxl: Add bus internal docs cxl/core: Split decoder setup into alloc + add tools/testing/cxl: Introduce a mock memory device + driver cxl/mbox: Move command definitions to common location cxl/bus: Populate the target list at decoder create tools/testing/cxl: Introduce a mocked-up CXL port hierarchy cxl/pmem: Add support for multiple nvdimm-bridge objects cxl/pmem: Translate NVDIMM label commands to CXL label commands ...
2021-11-07selftests: net: tls: remove unused variable and codeAnders Roxell1-3/+0
When building selftests/net with clang, the compiler warn about the function abs() see below: tls.c:657:15: warning: variable 'len_compared' set but not used [-Wunused-but-set-variable] unsigned int len_compared = 0; ^ Rework to remove the unused variable and the for-loop where the variable 'len_compared' was assinged. Fixes: 7f657d5bf507 ("selftests: tls: add selftests for TLS sockets") Signed-off-by: Anders Roxell <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-06Merge tag 's390-5.16-1' of ↵Linus Torvalds2-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Add support for ftrace with direct call and ftrace direct call samples. - Add support for kernel command lines longer than current 896 bytes and make its length configurable. - Add support for BEAR enhancement facility to improve last breaking event instruction tracking. - Add kprobes sanity checks and testcases to prevent kprobe in the mid of an instruction. - Allow concurrent access to /dev/hwc for the CPUMF users. - Various ftrace / jump label improvements. - Convert unwinder tests to KUnit. - Add s390_iommu_aperture kernel parameter to tweak the limits on concurrently usable DMA mappings. - Add ap.useirq AP module option which can be used to disable interrupt use. - Add add_disk() error handling support to block device drivers. - Drop arch specific and use generic implementation of strlcpy and strrchr. - Several __pa/__va usages fixes. - Various cio, crypto, pci, kernel doc and other small fixes and improvements all over the code. [ Merge fixup as per https://lore.kernel.org/all/YXAqZ%2FEszRisunQw@osiris/ ] * tag 's390-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (63 commits) s390: make command line configurable s390: support command lines longer than 896 bytes s390/kexec_file: move kernel image size check s390/pci: add s390_iommu_aperture kernel parameter s390/spinlock: remove incorrect kernel doc indicator s390/string: use generic strlcpy s390/string: use generic strrchr s390/ap: function rework based on compiler warning s390/cio: make ccw_device_dma_* more robust s390/vfio-ap: s390/crypto: fix all kernel-doc warnings s390/hmcdrv: fix kernel doc comments s390/ap: new module option ap.useirq s390/cpumf: Allow multiple processes to access /dev/hwc s390/bitops: return true/false (not 1/0) from bool functions s390: add support for BEAR enhancement facility s390: introduce nospec_uses_trampoline() s390: rename last_break to pgm_last_break s390/ptrace: add last_break member to pt_regs s390/sclp: sort out physical vs virtual pointers usage s390/setup: convert start and end initrd pointers to virtual ...
2021-11-06Merge branch 'akpm' (patches from Andrew)Linus Torvalds10-104/+410
Merge misc updates from Andrew Morton: "257 patches. Subsystems affected by this patch series: scripts, ocfs2, vfs, and mm (slab-generic, slab, slub, kconfig, dax, kasan, debug, pagecache, gup, swap, memcg, pagemap, mprotect, mremap, iomap, tracing, vmalloc, pagealloc, memory-failure, hugetlb, userfaultfd, vmscan, tools, memblock, oom-kill, hugetlbfs, migration, thp, readahead, nommu, ksm, vmstat, madvise, memory-hotplug, rmap, zsmalloc, highmem, zram, cleanups, kfence, and damon)" * emailed patches from Andrew Morton <[email protected]>: (257 commits) mm/damon: remove return value from before_terminate callback mm/damon: fix a few spelling mistakes in comments and a pr_debug message mm/damon: simplify stop mechanism Docs/admin-guide/mm/pagemap: wordsmith page flags descriptions Docs/admin-guide/mm/damon/start: simplify the content Docs/admin-guide/mm/damon/start: fix a wrong link Docs/admin-guide/mm/damon/start: fix wrong example commands mm/damon/dbgfs: add adaptive_targets list check before enable monitor_on mm/damon: remove unnecessary variable initialization Documentation/admin-guide/mm/damon: add a document for DAMON_RECLAIM mm/damon: introduce DAMON-based Reclamation (DAMON_RECLAIM) selftests/damon: support watermarks mm/damon/dbgfs: support watermarks mm/damon/schemes: activate schemes based on a watermarks mechanism tools/selftests/damon: update for regions prioritization of schemes mm/damon/dbgfs: support prioritization weights mm/damon/vaddr,paddr: support pageout prioritization mm/damon/schemes: prioritize regions within the quotas mm/damon/selftests: support schemes quotas mm/damon/dbgfs: support quotas of schemes ...
2021-11-06selftests/damon: support watermarksSeongJae Park1-2/+2
This updates DAMON selftests for 'schemes' debugfs file to reflect the changes in the format. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: SeongJae Park <[email protected]> Cc: Amit Shah <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Greg Thelen <[email protected]> Cc: Jonathan Cameron <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Leonard Foerster <[email protected]> Cc: Marco Elver <[email protected]> Cc: Markus Boehme <[email protected]> Cc: Shakeel Butt <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06tools/selftests/damon: update for regions prioritization of schemesSeongJae Park1-2/+2
This updates the DAMON selftests for 'schemes' debugfs file, as the file format is updated. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: SeongJae Park <[email protected]> Cc: Amit Shah <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Greg Thelen <[email protected]> Cc: Jonathan Cameron <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Leonard Foerster <[email protected]> Cc: Marco Elver <[email protected]> Cc: Markus Boehme <[email protected]> Cc: Shakeel Butt <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06mm/damon/selftests: support schemes quotasSeongJae Park1-2/+2
This updates DAMON selftests to support updated schemes debugfs file format for the quotas. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: SeongJae Park <[email protected]> Cc: Amit Shah <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Greg Thelen <[email protected]> Cc: Jonathan Cameron <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Leonard Foerster <[email protected]> Cc: Marco Elver <[email protected]> Cc: Markus Boehme <[email protected]> Cc: Shakeel Butt <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06selftests/damon: add 'schemes' debugfs testsSeongJae Park1-0/+13
This adds simple selftets for 'schemes' debugfs file of DAMON. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: SeongJae Park <[email protected]> Cc: Amit Shah <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rienjes <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Greg Thelen <[email protected]> Cc: Jonathan Cameron <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Leonard Foerster <[email protected]> Cc: Marco Elver <[email protected]> Cc: Markus Boehme <[email protected]> Cc: Shakeel Butt <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06mm/memory_hotplug: remove CONFIG_MEMORY_HOTPLUG_SPARSEDavid Hildenbrand1-1/+0
CONFIG_MEMORY_HOTPLUG depends on CONFIG_SPARSEMEM, so there is no need for CONFIG_MEMORY_HOTPLUG_SPARSE anymore; adjust all instances to use CONFIG_MEMORY_HOTPLUG and remove CONFIG_MEMORY_HOTPLUG_SPARSE. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: David Hildenbrand <[email protected]> Acked-by: Shuah Khan <[email protected]> [kselftest] Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Oscar Salvador <[email protected]> Cc: Alex Shi <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Dave Hansen <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jason Wang <[email protected]> Cc: Jonathan Corbet <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: "Michael S. Tsirkin" <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Mike Rapoport <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06selftests/vm: make MADV_POPULATE_(READ|WRITE) use in-tree headersDavid Hildenbrand1-14/+1
The madv_populate selftest currently builds with a warning when the local installed headers (via the distribution) don't include MADV_POPULATE_READ and MADV_POPULATE_WRITE. The warning is correct, because the test cannot locate the necessary header. The reason is that the in-tree installed headers (usr/include) have a "linux" instead of a "sys" subdirectory. Including "linux/mman.h" instead of "sys/mman.h" doesn't work (e.g., mmap() and madvise() are not defined that way). The only thing that seems to work is including "linux/mman.h" in addition to "sys/mman.h". We can get rid of our availability check and simplify. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: David Hildenbrand <[email protected]> Reported-by: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06selftests: vm: add KSM huge pages merging time testPedro Demarchi Gomes1-1/+124
Add test case of KSM merging time using mostly huge pages Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Pedro Demarchi Gomes <[email protected]> Cc: Zhansaya Bagdauletkyzy <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06selftest/vm: fix ksm selftest to run with different NUMA topologiesAneesh Kumar K.V1-3/+26
Platforms can have non-contiguous NUMA nodes like below #numactl -H available: 2 nodes (0,8) ..... node distances: node 0 8 0: 10 40 8: 40 10 #numactl -H available: 1 nodes (1) .... node distances: node 1 1: 10 Hence update the test to not assume the presence of Node 0 and 1 and also use numa_num_configured_nodes() instead of numa_max_node for finding whether to skip the test. Link: https://lkml.kernel.org/r/[email protected] Fixes: 82e717ad3501 ("selftests: vm: add KSM merging across nodes test") Signed-off-by: Aneesh Kumar K.V <[email protected]> Reviewed-by: Pasha Tatashin <[email protected]> Cc: Zhansaya Bagdauletkyzy <[email protected]> Cc: Pavel Tatashin <[email protected]> Cc: Tyler Hicks <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06selftests/vm/transhuge-stress: fix ram size thinkoGeorge G. Davis1-1/+1
When executing transhuge-stress with an argument to specify the virtual memory size for testing, the ram size is reported as 0, e.g. transhuge-stress 384 thp-mmap: allocate 192 transhuge pages, using 384 MiB virtual memory and 0 MiB of ram thp-mmap: 0.184 s/loop, 0.957 ms/page, 2090.265 MiB/s 192 succeed, 0 failed This appears to be due to a thinko in commit 0085d61fe05e ("selftests/vm/transhuge-stress: stress test for memory compaction"), where, at a guess, the intent was to base "xyz MiB of ram" on `ram` size. Here are results after using `ram` size: thp-mmap: allocate 192 transhuge pages, using 384 MiB virtual memory and 14 MiB of ram Link: https://lkml.kernel.org/r/[email protected] Fixes: 0085d61fe05e ("selftests/vm/transhuge-stress: stress test for memory compaction") Signed-off-by: George G. Davis <[email protected]> Cc: Konstantin Khlebnikov <[email protected]> Cc: Eugeniu Rosca <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06userfaultfd/selftests: fix calculation of expected ioctlsAxel Rasmussen1-39/+38
Today, we assert that the ioctls the kernel reports as supported for a registration match a precomputed list. We decide which ioctls are supported by examining the memory type. Then, in several locations we "fix up" this list by adding or removing things this initial decision got wrong. What ioctls the kernel reports is actually a function of several things: - The memory type - Kernel feature support (e.g., no writeprotect on aarch64) - The registration type (e.g., CONTINUE only supported for MINOR mode) So, we can't fully compute this at the start, in set_test_type. It varies per test, depending on what registration mode(s) those tests use. Instead, introduce a new function which computes the correct list. This centralizes the add/remove of ioctls depending on these function inputs in one place, so we don't have to repeat ourselves in various tests. Not only is the resulting code a bit shorter, but it fixes a real bug in the existing code: previously, we would incorrectly require the writeprotect ioctl to be present on aarch64, where it isn't actually supported. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Axel Rasmussen <[email protected]> Reviewed-by: Peter Xu <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06userfaultfd/selftests: fix feature support detectionAxel Rasmussen1-23/+31
Before any tests are run, in set_test_type, we decide what feature(s) we are going to be testing, based upon our command line arguments. However, the supported features are not just a function of the memory type being used, so this is broken. For instance, consider writeprotect support. It is "normally" supported for anonymous memory, but furthermore it requires that the kernel has CONFIG_HAVE_ARCH_USERFAULTFD_WP. So, it is *not* supported at all on aarch64, for example. So, this fixes this by querying the kernel for the set of features it supports in set_test_type, by opening a userfaultfd and issuing a UFFDIO_API ioctl. Based upon the reported features, we toggle what tests are enabled. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Axel Rasmussen <[email protected]> Reviewed-by: Peter Xu <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06userfaultfd/selftests: don't rely on GNU extensions for random numbersAxel Rasmussen1-22/+4
Patch series "Small userfaultfd selftest fixups", v2. This patch (of 3): Two arguments for doing this: First, and maybe most importantly, the resulting code is significantly shorter / simpler. Then, we avoid using GNU libc extensions. Why does this matter? It makes testing userfaultfd with the selftest easier e.g. on distros which use something other than glibc (e.g., Alpine, which uses musl); basically, it makes the test more portable. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Axel Rasmussen <[email protected]> Reviewed-by: Peter Xu <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06mm: remove duplicate include in hugepage-mremap.cRan Jianping1-1/+0
Remove duplicate includes 'unistd.h' included in '/tools/testing/selftests/vm/hugepage-mremap.c' is duplicated.It is also included on 23 line. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Ran Jianping <[email protected]> Reported-by: Zeal Robot <[email protected]> Cc: Shuah Khan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06mm, hugepages: add hugetlb vma mremap() testMina Almasry4-0/+173
[[email protected]: v8] Link: https://lkml.kernel.org/r/[email protected] [[email protected]: remove duplicated include in hugepage-mremap] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Mina Almasry <[email protected]> Signed-off-by: Wan Jiabing <[email protected]> Acked-by: Mike Kravetz <[email protected]> Cc: Ken Chen <[email protected]> Cc: Chris Kennelly <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: Kirill Shutemov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-11-06bpf: selftest: Trigger a DCE on the whole subprogMartin KaFai Lau1-0/+12
This patch adds a test to trigger the DCE to remove the whole subprog to ensure the verifier does not depend on a stable subprog index. The DCE is done by testing a global const. Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-05Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski6-41/+133
Daniel Borkmann says: ==================== pull-request: bpf 2021-11-05 We've added 15 non-merge commits during the last 3 day(s) which contain a total of 14 files changed, 199 insertions(+), 90 deletions(-). The main changes are: 1) Fix regression from stack spill/fill of <8 byte scalars, from Martin KaFai Lau. 2) Fix perf's build of bpftool's bootstrap version due to missing libbpf headers, from Quentin Monnet. 3) Fix riscv{32,64} BPF exception tables build errors and warnings, from Björn Töpel. 4) Fix bpf fs to allow RENAME_EXCHANGE support for atomic upgrades on sk_lookup control planes, from Lorenz Bauer. 5) Fix libbpf's error reporting in bpf_map_lookup_and_delete_elem_flags() due to missing libbpf_err_errno(), from Mehrdad Arshad Rad. 6) Various fixes to make xdp_redirect_multi selftest more reliable, from Hangbin Liu. 7) Fix netcnt selftest to make it run serial and thus avoid conflicts with other cgroup/skb selftests run in parallel that could cause flakes, from Andrii Nakryiko. 8) Fix reuseport_bpf_numa networking selftest to skip unavailable NUMA nodes, from Kleber Sacilotto de Souza. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: riscv, bpf: Fix RV32 broken build, and silence RV64 warning selftests/bpf/xdp_redirect_multi: Limit the tests in netns selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanly selftests/bpf/xdp_redirect_multi: Use arping to accurate the arp number selftests/bpf/xdp_redirect_multi: Put the logs to tmp folder libbpf: Fix lookup_and_delete_elem_flags error reporting bpftool: Install libbpf headers for the bootstrap version, too selftests/net: Fix reuseport_bpf_numa by skipping unavailable nodes selftests/bpf: Verifier test on refill from a smaller spill bpf: Do not reject when the stack read size is different from the tracked scalar size selftests/bpf: Make netcnt selftests serial to avoid spurious failures selftests/bpf: Test RENAME_EXCHANGE and RENAME_NOREPLACE on bpffs selftests/bpf: Convert test_bpffs to ASSERT macros libfs: Support RENAME_EXCHANGE in simple_rename() libfs: Move shmem_exchange to simple_rename_exchange ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2021-11-05selftests/bpf/xdp_redirect_multi: Limit the tests in netnsHangbin Liu2-10/+17
As I want to test both DEVMAP and DEVMAP_HASH in XDP multicast redirect, I limited DEVMAP max entries to a small value for performace. When the test runs after amount of interface creating/deleting tests. The interface index will exceed the map max entries and xdp_redirect_multi will error out with "Get interfacesInterface index to large". Fix this issue by limit the tests in netns and specify the ifindex when creating interfaces. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Reported-by: Jiri Benc <[email protected]> Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-05selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanlyHangbin Liu1-2/+2
No need to kill tcpdump with -9. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Suggested-by: Jiri Benc <[email protected]> Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-05selftests/bpf/xdp_redirect_multi: Use arping to accurate the arp numberHangbin Liu1-4/+4
The arp request number triggered by ping none exist address is not accurate, which may lead the test false negative/positive. Change to use arping to accurate the arp number. Also do not use grep pattern match for dot. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Suggested-by: Jiri Benc <[email protected]> Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-05selftests/bpf/xdp_redirect_multi: Put the logs to tmp folderHangbin Liu1-17/+18
The xdp_redirect_multi test logs are created in selftest folder and not cleaned after test. Let's creat a tmp dir and remove the logs after testing. Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test") Suggested-by: Jiri Benc <[email protected]> Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-05Merge tag 'powerpc-5.16-1' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Enable STRICT_KERNEL_RWX for Freescale 85xx platforms. - Activate CONFIG_STRICT_KERNEL_RWX by default, while still allowing it to be disabled. - Add support for out-of-line static calls on 32-bit. - Fix oopses doing bpf-to-bpf calls when STRICT_KERNEL_RWX is enabled. - Fix boot hangs on e5500 due to stale value in ESR passed to do_page_fault(). - Fix several bugs on pseries in handling of device tree cache information for hotplugged CPUs, and/or during partition migration. - Various other small features and fixes. Thanks to Alexey Kardashevskiy, Alistair Popple, Anatolij Gustschin, Andrew Donnellan, Athira Rajeev, Bixuan Cui, Bjorn Helgaas, Cédric Le Goater, Christophe Leroy, Daniel Axtens, Daniel Henrique Barboza, Denis Kirjanov, Fabiano Rosas, Frederic Barrat, Gustavo A. R. Silva, Hari Bathini, Jacques de Laval, Joel Stanley, Kai Song, Kajol Jain, Laurent Vivier, Leonardo Bras, Madhavan Srinivasan, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Niklas Schnelle, Oliver O'Halloran, Rob Herring, Russell Currey, Srikar Dronamraju, Stan Johnson, Tyrel Datwyler, Uwe Kleine-König, Vasant Hegde, Wan Jiabing, and Xiaoming Ni, * tag 'powerpc-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (73 commits) powerpc/8xx: Fix Oops with STRICT_KERNEL_RWX without DEBUG_RODATA_TEST powerpc/32e: Ignore ESR in instruction storage interrupt handler powerpc/powernv/prd: Unregister OPAL_MSG_PRD2 notifier during module unload powerpc: Don't provide __kernel_map_pages() without ARCH_SUPPORTS_DEBUG_PAGEALLOC MAINTAINERS: Update powerpc KVM entry powerpc/xmon: fix task state output powerpc/44x/fsp2: add missing of_node_put powerpc/dcr: Use cmplwi instead of 3-argument cmpli KVM: PPC: Tick accounting should defer vtime accounting 'til after IRQ handling powerpc/security: Use a mutex for interrupt exit code patching powerpc/83xx/mpc8349emitx: Make mcu_gpiochip_remove() return void powerpc/fsl_booke: Fix setting of exec flag when setting TLBCAMs powerpc/book3e: Fix set_memory_x() and set_memory_nx() powerpc/nohash: Fix __ptep_set_access_flags() and ptep_set_wrprotect() powerpc/bpf: Fix write protecting JIT code selftests/powerpc: Use date instead of EPOCHSECONDS in mitigation-patching.sh powerpc/64s/interrupt: Fix check_return_regs_valid() false positive powerpc/boot: Set LC_ALL=C in wrapper script powerpc/64s: Default to 64K pages for 64 bit book3s Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" ...
2021-11-04Merge tag 'char-misc-5.16-rc1' of ↵Linus Torvalds3-1/+11
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char and misc and other tiny driver subsystem updates for 5.16-rc1. Loads of things in here, all of which have been in linux-next for a while with no reported problems (except for one called out below.) Included are: - habanana labs driver updates, including dma_buf usage, reviewed and acked by the dma_buf maintainers - iio driver update (going through this tree not staging as they really do not belong going through that tree anymore) - counter driver updates - hwmon driver updates that the counter drivers needed, acked by the hwmon maintainer - xillybus driver updates - binder driver updates - extcon driver updates - dma_buf module namespaces added (will cause a build error in arm64 for allmodconfig, but that change is on its way through the drm tree) - lkdtm driver updates - pvpanic driver updates - phy driver updates - virt acrn and nitr_enclaves driver updates - smaller char and misc driver updates" * tag 'char-misc-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (386 commits) comedi: dt9812: fix DMA buffers on stack comedi: ni_usb6501: fix NULL-deref in command paths arm64: errata: Enable TRBE workaround for write to out-of-range address arm64: errata: Enable workaround for TRBE overwrite in FILL mode coresight: trbe: Work around write to out of range coresight: trbe: Make sure we have enough space coresight: trbe: Add a helper to determine the minimum buffer size coresight: trbe: Workaround TRBE errata overwrite in FILL mode coresight: trbe: Add infrastructure for Errata handling coresight: trbe: Allow driver to choose a different alignment coresight: trbe: Decouple buffer base from the hardware base coresight: trbe: Add a helper to pad a given buffer area coresight: trbe: Add a helper to calculate the trace generated coresight: trbe: Defer the probe on offline CPUs coresight: trbe: Fix incorrect access of the sink specific data coresight: etm4x: Add ETM PID for Kryo-5XX coresight: trbe: Prohibit trace before disabling TRBE coresight: trbe: End the AUX handle on truncation coresight: trbe: Do not truncate buffer on IRQ coresight: trbe: Fix handling of spurious interrupts ...
2021-11-04selftests/net: Fix reuseport_bpf_numa by skipping unavailable nodesKleber Sacilotto de Souza1-0/+4
In some platforms the numa node numbers are not necessarily consecutive, meaning that not all nodes from 0 to the value returned by numa_max_node() are available on the system. Using node numbers which are not available results on errors from libnuma such as: ---- IPv4 UDP ---- send node 0, receive socket 0 libnuma: Warning: Cannot read node cpumask from sysfs ./reuseport_bpf_numa: failed to pin to node: No such file or directory Fix it by checking if the node number bit is set on numa_nodes_ptr, which is defined on libnuma as "Set with all nodes the kernel has exposed to userspace". Signed-off-by: Kleber Sacilotto de Souza <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-04selftests: net: properly support IPv6 in GSO GRE testAndrea Righi1-4/+5
Explicitly pass -6 to netcat when the test is using IPv6 to prevent failures. Also make sure to pass "-N" to netcat to close the socket after EOF on the client side, otherwise we would always hit the timeout and the test would fail. Without this fix applied: TEST: GREv6/v4 - copy file w/ TSO [FAIL] TEST: GREv6/v4 - copy file w/ GSO [FAIL] TEST: GREv6/v6 - copy file w/ TSO [FAIL] TEST: GREv6/v6 - copy file w/ GSO [FAIL] With this fix applied: TEST: GREv6/v4 - copy file w/ TSO [ OK ] TEST: GREv6/v4 - copy file w/ GSO [ OK ] TEST: GREv6/v6 - copy file w/ TSO [ OK ] TEST: GREv6/v6 - copy file w/ GSO [ OK ] Fixes: 025efa0a82df ("selftests: add simple GSO GRE test") Signed-off-by: Andrea Righi <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-03Merge tag 'trace-v5.16-2' of ↵Linus Torvalds1-0/+63
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull more tracing updates from Steven Rostedt: - osnoise and timerlat updates that will work with the RTLA tool (Real-Time Linux Analysis). Specifically it disconnects the work load (threads that look for latency) from the tracing instances attached to them, allowing for more than one instance to retrieve data from the work load. - Optimization on division in the trace histogram trigger code to use shift and multiply when possible. Also added documentation. - Fix prototype to my_direct_func in direct ftrace trampoline sample code. * tag 'trace-v5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace/samples: Add missing prototype for my_direct_func tracing/selftests: Add tests for hist trigger expression parsing tracing/histogram: Document hist trigger variables tracing/histogram: Update division by 0 documentation tracing/histogram: Optimize division by constants tracing/osnoise: Remove PREEMPT_RT ifdefs from inside functions tracing/osnoise: Remove STACKTRACE ifdefs from inside functions tracing/osnoise: Allow multiple instances of the same tracer tracing/osnoise: Remove TIMERLAT ifdefs from inside functions tracing/osnoise: Support a list of trace_array *tr tracing/osnoise: Use start/stop_per_cpu_kthreads() on osnoise_cpus_write() tracing/osnoise: Split workload start from the tracer start tracing/osnoise: Improve comments about barrier need for NMI callbacks tracing/osnoise: Do not follow tracing_cpumask
2021-11-03selftests/bpf: Verifier test on refill from a smaller spillMartin KaFai Lau1-0/+17
This patch adds a verifier test to ensure the verifier can read 8 bytes from the stack after two 32bit write at fp-4 and fp-8. The test is similar to the reported case from bcc [0]. [0] https://github.com/iovisor/bcc/pull/3683 Signed-off-by: Martin KaFai Lau <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-03selftests/bpf: Make netcnt selftests serial to avoid spurious failuresAndrii Nakryiko1-1/+1
When running `./test_progs -j` test_netcnt fails with a very high probability, undercounting number of packets received (9999 vs expected 10000). It seems to be conflicting with other cgroup/skb selftests. So make it serial for now to make parallel mode more robust. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-03selftests/bpf: Test RENAME_EXCHANGE and RENAME_NOREPLACE on bpffsLorenz Bauer1-1/+64
Add tests to exercise the behaviour of RENAME_EXCHANGE and RENAME_NOREPLACE on bpffs. The former checks that after an exchange the inode of two directories has changed. The latter checks that the source still exists after a failed rename. Generally, having support for renameat2(RENAME_EXCHANGE) in bpffs fixes atomic upgrades of our sk_lookup control plane. Signed-off-by: Lorenz Bauer <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-03selftests/bpf: Convert test_bpffs to ASSERT macrosLorenz Bauer1-11/+11
Remove usage of deprecated CHECK macros. Signed-off-by: Lorenz Bauer <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-11-03kselftests/net: add missed toeplitz.sh/toeplitz_client.sh to MakefileHangbin Liu1-0/+1
When generating the selftests to another folder, the toeplitz.sh and toeplitz_client.sh are missing as they are not in Makefile, e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests Making them under TEST_PROGS_EXTENDED as they test NIC hardware features and are not intended to be run from kselftests. Fixes: 5ebfb4cc3048 ("selftests/net: toeplitz test") Reviewed-by: Willem de Bruijn <[email protected]> Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-03kselftests/net: add missed vrf_strict_mode_test.sh test to MakefileHangbin Liu1-0/+1
When generating the selftests to another folder, the vrf_strict_mode_test.sh test will miss as it is not in Makefile, e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests Fixes: 8735e6eaa438 ("selftests: add selftest for the VRF strict mode") Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-03kselftests/net: add missed SRv6 testsHangbin Liu1-0/+3
When generating the selftests to another folder, the SRv6 tests are missing as they are not in Makefile, e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests Fixes: 03a0b567a03d ("selftests: seg6: add selftest for SRv6 End.DT46 Behavior") Fixes: 2195444e09b4 ("selftests: add selftest for the SRv6 End.DT4 behavior") Fixes: 2bc035538e16 ("selftests: add selftest for the SRv6 End.DT6 (VRF) behavior") Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-03kselftests/net: add missed setup_loopback.sh/setup_veth.sh to MakefileHangbin Liu1-1/+1
When generating the selftests to another folder, the include file setup_loopback.sh/setup_veth.sh for gro.sh/gre_gro.sh are missing as they are not in Makefile, e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests Fixes: 7d1575014a63 ("selftests/net: GRO coalesce test") Fixes: 9af771d2ec04 ("selftests/net: allow GRO coalesce test on veth") Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2021-11-03kselftests/net: add missed icmp.sh test to MakefileHangbin Liu1-1/+1
When generating the selftests to another folder, the icmp.sh test will miss as it is not in Makefile, e.g. make -C tools/testing/selftests/ install \ TARGETS="net" INSTALL_PATH=/tmp/kselftests Fixes: 7e9838b7915e ("selftests/net: Add icmp.sh for testing ICMP dummy address responses") Signed-off-by: Hangbin Liu <[email protected]> Signed-off-by: David S. Miller <[email protected]>