DepSurf

Function: cyc2ns_read_begin

Status

Regular

• In 4.4: ✅

  struct cyc2ns_data *cyc2ns_read_begin();
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81037d10)
  Location: arch/x86/kernel/tsc.c:82
  Inline: False
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81037d10-ffffffff81037d22: cyc2ns_read_begin (STB_GLOBAL)
  

• In 4.8: ✅

  struct cyc2ns_data *cyc2ns_read_begin();
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81036f20)
  Location: arch/x86/kernel/tsc.c:83
  Inline: False
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81036f20-ffffffff81036f32: cyc2ns_read_begin (STB_GLOBAL)
  

• In 4.10: ✅

  struct cyc2ns_data *cyc2ns_read_begin();
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81036c50)
  Location: arch/x86/kernel/tsc.c:84
  Inline: False
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81036c50-ffffffff81036c62: cyc2ns_read_begin (STB_GLOBAL)
  

• In 4.13: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81034e23)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81034dc0-ffffffff81034e00: cyc2ns_read_begin (STB_GLOBAL)
  

• In 4.15: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81037183)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81037120-ffffffff81037160: cyc2ns_read_begin (STB_GLOBAL)
  

• In 4.18: Selective Inline, Transformation ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: True

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103817f)
  Location: arch/x86/kernel/tsc.c:63
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:set_cyc2ns_scale
  

  Symbols:

  ffffffff81037b90-ffffffff81037bd0: cyc2ns_read_begin.part.2 (STB_LOCAL)
  ffffffff81038140-ffffffff8103814b: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.0: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff82892dad)
  Location: arch/x86/kernel/tsc.c:61
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:tsc_enable_sched_clock
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81039860-ffffffff810398a0: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.3: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103be50)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8103be00-ffffffff8103be3c: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.4: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103c610)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
    - arch/x86/platform/uv/tlb_uv.c:init_per_cpu
    - arch/x86/platform/uv/tlb_uv.c:init_per_cpu
    - arch/x86/platform/uv/tlb_uv.c:tunables_write
    - arch/x86/platform/uv/tlb_uv.c:ptc_seq_show
    - arch/x86/platform/uv/tlb_uv.c:ptc_seq_show
    - arch/x86/platform/uv/tlb_uv.c:uv2_3_wait_completion
    - arch/x86/platform/uv/tlb_uv.c:uv1_wait_completion
  

  Symbols:

  ffffffff8103c5c0-ffffffff8103c5fc: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.8: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103f400)
  Location: arch/x86/kernel/tsc.c:69
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
    - arch/x86/platform/uv/tlb_uv.c:tunables_write
    - arch/x86/platform/uv/tlb_uv.c:ptc_seq_show
    - arch/x86/platform/uv/tlb_uv.c:ptc_seq_show
    - arch/x86/platform/uv/tlb_uv.c:uv2_3_wait_completion
    - arch/x86/platform/uv/tlb_uv.c:uv1_wait_completion
  

  Symbols:

  ffffffff8103f3b0-ffffffff8103f3ec: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.11: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103f4c0)
  Location: arch/x86/kernel/tsc.c:69
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8103f470-ffffffff8103f4ac: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.13: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81040e30)
  Location: arch/x86/kernel/tsc.c:70
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81040de0-ffffffff81040e1c: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.15: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff81046f51)
  Location: arch/x86/kernel/tsc.c:70
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff81046ed0-ffffffff81046f19: cyc2ns_read_begin (STB_GLOBAL)
  

• In 5.19: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8104fcf1)
  Location: arch/x86/kernel/tsc.c:70
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8104fc50-ffffffff8104fcac: cyc2ns_read_begin (STB_GLOBAL)
  

• In 6.2: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8105d071)
  Location: arch/x86/kernel/tsc.c:70
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8105cfb0-ffffffff8105d00c: cyc2ns_read_begin (STB_GLOBAL)
  

• In 6.5: ✅

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8105e520)
  Location: arch/x86/kernel/tsc.c:87
  Inline: False
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8105e520-ffffffff8105e57c: cyc2ns_read_begin (STB_GLOBAL)
  

• In 6.8: ✅

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff810655e0)
  Location: arch/x86/kernel/tsc.c:87
  Inline: False
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff810655e0-ffffffff8106563c: cyc2ns_read_begin (STB_GLOBAL)
  

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103c770)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8103c720-ffffffff8103c75c: cyc2ns_read_begin (STB_GLOBAL)
  

• In azure: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8102be60)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8102be10-ffffffff8102be4c: cyc2ns_read_begin (STB_GLOBAL)
  

• In gcp: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103c5d0)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
  

  Symbols:

  ffffffff8103c580-ffffffff8103c5bc: cyc2ns_read_begin (STB_GLOBAL)
  

• In lowlatency: Selective Inline ⚠️

  void cyc2ns_read_begin(struct cyc2ns_data *data);
  

  Collision: Unique Global

  Inline: Selective

  Transformation: False

  Instances:

  In arch/x86/kernel/tsc.c (ffffffff8103d640)
  Location: arch/x86/kernel/tsc.c:62
  Inline: True
  Inline callers:
    - arch/x86/kernel/tsc.c:native_sched_clock_from_tsc
    - arch/x86/kernel/tsc.c:native_sched_clock
    - arch/x86/kernel/tsc.c:__set_cyc2ns_scale
  Direct callers:
    - arch/x86/events/core.c:arch_perf_update_userpage
    - arch/x86/platform/uv/tlb_uv.c:init_per_cpu
    - arch/x86/platform/uv/tlb_uv.c:init_per_cpu
    - arch/x86/platform/uv/tlb_uv.c:tunables_write
    - arch/x86/platform/uv/tlb_uv.c:ptc_seq_show
    - arch/x86/platform/uv/tlb_uv.c:ptc_seq_show
    - arch/x86/platform/uv/tlb_uv.c:uv2_3_wait_completion
    - arch/x86/platform/uv/tlb_uv.c:uv1_wait_completion
  

  Symbols:

  ffffffff8103d5d0-ffffffff8103d613: cyc2ns_read_begin (STB_GLOBAL)
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• No changes between 4.8 and 4.10 ✅
• Changed between 4.10 and 4.13 ⚠️

  • Param added. struct cyc2ns_data *data
  • Return type changed. struct cyc2ns_data * ➡️ void
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅