github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-09 00:45:33 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph
327ecdbc0f
linux/include
History
Linus Torvalds 327ecdbc0f Performance events updates for v6.15: 
Core:
 
   - Move perf_event sysctls into kernel/events/ (Joel Granados)
   - Use POLLHUP for pinned events in error (Namhyung Kim)
   - Avoid the read if the count is already updated (Peter Zijlstra)
   - Allow the EPOLLRDNORM flag for poll (Tao Chen)
 
   - locking/percpu-rwsem: Add guard support (Peter Zijlstra)
     [ NOTE: this got (mis-)merged into the perf tree due to related work. ]
 
 perf_pmu_unregister() related improvements: (Peter Zijlstra)
 
   - Simplify the perf_event_alloc() error path
   - Simplify the perf_pmu_register() error path
   - Simplify perf_pmu_register()
   - Simplify perf_init_event()
   - Simplify perf_event_alloc()
   - Merge struct pmu::pmu_disable_count into struct perf_cpu_pmu_context::pmu_disable_count
   - Add this_cpc() helper
   - Introduce perf_free_addr_filters()
   - Robustify perf_event_free_bpf_prog()
   - Simplify the perf_mmap() control flow
   - Further simplify perf_mmap()
   - Remove retry loop from perf_mmap()
   - Lift event->mmap_mutex in perf_mmap()
   - Detach 'struct perf_cpu_pmu_context' and 'struct pmu' lifetimes
   - Fix perf_mmap() failure path
 
 Uprobes:
 
   - Harden x86 uretprobe syscall trampoline check (Jiri Olsa)
   - Remove redundant spinlock in uprobe_deny_signal() (Liao Chang)
   - Remove the spinlock within handle_singlestep() (Liao Chang)
 
 x86 Intel PMU enhancements:
 
   - Support PEBS counters snapshotting (Kan Liang)
   - Fix intel_pmu_read_event() (Kan Liang)
   - Extend per event callchain limit to branch stack (Kan Liang)
   - Fix system-wide LBR profiling (Kan Liang)
   - Allocate bts_ctx only if necessary (Li RongQing)
   - Apply static call for drain_pebs (Peter Zijlstra)
 
 x86 AMD PMU enhancements: (Ravi Bangoria)
 
   - Remove pointless sample period check
   - Fix ->config to sample period calculation for OP PMU
   - Fix perf_ibs_op.cnt_mask for CurCnt
   - Don't allow freq mode event creation through ->config interface
   - Add PMU specific minimum period
   - Add ->check_period() callback
   - Ceil sample_period to min_period
   - Add support for OP Load Latency Filtering
   - Update DTLB/PageSize decode logic
 
 Hardware breakpoints:
 
   - Return EOPNOTSUPP for unsupported breakpoint type (Saket Kumar Bhaskar)
 
 Hardlockup detector improvements: (Li Huafei)
 
   - perf_event memory leak
   - Warn if watchdog_ev is leaked
 
 Fixes and cleanups:
 
   - Misc fixes and cleanups (Andy Shevchenko, Kan Liang, Peter Zijlstra,
     Ravi Bangoria, Thorsten Blum, XieLudan)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmfehRIRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hF3g//TCAQijI6OFNpYiD1xoyMq4m+baIYhYx0
 lnxwxhsN58JFcEJeWIEGLACqUePyH68jNKVSr9sIoeV4gnnMX+x2Ny6rh/1H3Ox+
 jQyVmPdFmKa8QG7wGNjcDteIzlEKK4zqruXWaG54LX2e6kbQZWwd0I21MyXkrHXb
 oMIfyZbCAWuPW1wefZm8FPgImT+nvwOosyx90OVagGqk5mYdNb9DFhMjQveStHdQ
 BnWU6rYdW1c2eXKpeuvxY4uWQoCELC6WntLimvcswy6fb+9LtbglpCYQOGGDrGvp
 v3RASf/8clFVSau8P/8NEaNgLgjN/e3eN/fAoSut8Z22nAeBC6qv4qjFt1piDpbs
 AaEXYCYM0/Tfzjp3ctPsFrxbKvB8q2qhxSm37Co0Ix6WyJn3JQbNx48g8GIod2os
 eGPXSZzoz9O8coeTKKbxWp4fpAjFfyfe/ovWQuVd8JI4bYj7Mi63J+RxQDd2TkJP
 H+IgxZoamJExgS1YcKJUBtw7QKQm5pHFx03Br7KsNxgmHy7JdoN9bh0h14pkeXjB
 MnAvWOS5ouuriJgQ+4bqAezS8DSHnDdmFmWgNEEqAlOD9Zy9hDXJ2GiqbHKMyRNC
 ae35o0PDUFTIX9O5NPIDUyWtJb5uH/S1lQhS7GD+ODlMDIX+ny+REXf9krSCR1H0
 GUqq2UmxBGA=
 =iPmA
 -----END PGP SIGNATURE-----

Merge tag 'perf-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance events updates from Ingo Molnar:
 "Core:
   - Move perf_event sysctls into kernel/events/ (Joel Granados)
   - Use POLLHUP for pinned events in error (Namhyung Kim)
   - Avoid the read if the count is already updated (Peter Zijlstra)
   - Allow the EPOLLRDNORM flag for poll (Tao Chen)
   - locking/percpu-rwsem: Add guard support [ NOTE: this got
     (mis-)merged into the perf tree due to related work ] (Peter
     Zijlstra)

  perf_pmu_unregister() related improvements: (Peter Zijlstra)
   - Simplify the perf_event_alloc() error path
   - Simplify the perf_pmu_register() error path
   - Simplify perf_pmu_register()
   - Simplify perf_init_event()
   - Simplify perf_event_alloc()
   - Merge struct pmu::pmu_disable_count into struct
     perf_cpu_pmu_context::pmu_disable_count
   - Add this_cpc() helper
   - Introduce perf_free_addr_filters()
   - Robustify perf_event_free_bpf_prog()
   - Simplify the perf_mmap() control flow
   - Further simplify perf_mmap()
   - Remove retry loop from perf_mmap()
   - Lift event->mmap_mutex in perf_mmap()
   - Detach 'struct perf_cpu_pmu_context' and 'struct pmu' lifetimes
   - Fix perf_mmap() failure path

  Uprobes:
   - Harden x86 uretprobe syscall trampoline check (Jiri Olsa)
   - Remove redundant spinlock in uprobe_deny_signal() (Liao Chang)
   - Remove the spinlock within handle_singlestep() (Liao Chang)

  x86 Intel PMU enhancements:
   - Support PEBS counters snapshotting (Kan Liang)
   - Fix intel_pmu_read_event() (Kan Liang)
   - Extend per event callchain limit to branch stack (Kan Liang)
   - Fix system-wide LBR profiling (Kan Liang)
   - Allocate bts_ctx only if necessary (Li RongQing)
   - Apply static call for drain_pebs (Peter Zijlstra)

  x86 AMD PMU enhancements: (Ravi Bangoria)
   - Remove pointless sample period check
   - Fix ->config to sample period calculation for OP PMU
   - Fix perf_ibs_op.cnt_mask for CurCnt
   - Don't allow freq mode event creation through ->config interface
   - Add PMU specific minimum period
   - Add ->check_period() callback
   - Ceil sample_period to min_period
   - Add support for OP Load Latency Filtering
   - Update DTLB/PageSize decode logic

  Hardware breakpoints:
   - Return EOPNOTSUPP for unsupported breakpoint type (Saket Kumar
     Bhaskar)

  Hardlockup detector improvements: (Li Huafei)
   - perf_event memory leak
   - Warn if watchdog_ev is leaked

  Fixes and cleanups:
   - Misc fixes and cleanups (Andy Shevchenko, Kan Liang, Peter
     Zijlstra, Ravi Bangoria, Thorsten Blum, XieLudan)"

* tag 'perf-core-2025-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (55 commits)
  perf: Fix __percpu annotation
  perf: Clean up pmu specific data
  perf/x86: Remove swap_task_ctx()
  perf/x86/lbr: Fix shorter LBRs call stacks for the system-wide mode
  perf: Supply task information to sched_task()
  perf: attach/detach PMU specific data
  locking/percpu-rwsem: Add guard support
  perf: Save PMU specific data in task_struct
  perf: Extend per event callchain limit to branch stack
  perf/ring_buffer: Allow the EPOLLRDNORM flag for poll
  perf/core: Use POLLHUP for pinned events in error
  perf/core: Use sysfs_emit() instead of scnprintf()
  perf/core: Remove optional 'size' arguments from strscpy() calls
  perf/x86/intel/bts: Check if bts_ctx is allocated when calling BTS functions
  uprobes/x86: Harden uretprobe syscall trampoline check
  watchdog/hardlockup/perf: Warn if watchdog_ev is leaked
  watchdog/hardlockup/perf: Fix perf_event memory leak
  perf/x86: Annotate struct bts_buffer::buf with __counted_by()
  perf/core: Clean up perf_try_init_event()
  perf/core: Fix perf_mmap() failure path
  ...
2025-03-24 21:46:36 -07:00
..
acpi LoongArch changes for v6.14 2025-01-28 08:52:01 -08:00
asm-generic It has been a reasonably busy cycle for docs... 2025-03-24 18:42:27 -07:00
clocksource KVM/arm64 updates for 6.14 2025-01-28 09:01:36 -08:00
crypto
cxl
drm drm: Fix DSC BPP increment decoding 2025-02-13 10:20:30 +02:00
dt-bindings dt-bindings: clock: qcom: Add CAMCC clocks for QCS8300 2025-02-02 20:59:04 -06:00
hyperv
keys keys: drop shadowing dead prototype 2025-01-21 11:25:23 +02:00
kunit linux_kselftest-kunit-6.14-rc1 2025-01-22 12:32:39 -08:00
kvm
linux Performance events updates for v6.15: 2025-03-24 21:46:36 -07:00
math-emu
media
memory
misc
net vfs-6.15-rc1.afs 2025-03-24 13:15:16 -07:00
pcmcia
ras
rdma
rv rv: Reset per-task monitors also for idle tasks 2025-01-23 12:16:04 -05:00
scsi Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
soc soc: driver updates for 6.14 2025-01-24 14:56:59 -08:00
sound ASoC: ops: Consistently treat platform_max as control value 2025-03-05 17:25:25 +00:00
target
trace Scheduler updates for v6.15: 2025-03-24 21:28:12 -07:00
uapi Performance events updates for v6.15: 2025-03-24 21:46:36 -07:00
ufs scsi: ufs: core: Fix use-after free in init error and remove paths 2025-02-03 17:20:01 -05:00
vdso
video
xen