website-function

Function: ring_buffer_read_prepare

Status

Regular

• In 4.4: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81146500)
  Location: kernel/trace/ring_buffer.c:4028
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81146500-ffffffff8114655d: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 4.8: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff8114ed50)
  Location: kernel/trace/ring_buffer.c:4023
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff8114ed50-ffffffff8114edac: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 4.10: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81158c90)
  Location: kernel/trace/ring_buffer.c:3992
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81158c90-ffffffff81158cef: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 4.13: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff8115c1c0)
  Location: kernel/trace/ring_buffer.c:4006
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff8115c1c0-ffffffff8115c212: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 4.15: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81169150)
  Location: kernel/trace/ring_buffer.c:3998
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81169150-ffffffff811691a6: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 4.18: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811781a0)
  Location: kernel/trace/ring_buffer.c:4160
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff811781a0-ffffffff811781f4: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.0: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81185560)
  Location: kernel/trace/ring_buffer.c:4225
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81185560-ffffffff811855b4: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.3: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81192710)
  Location: kernel/trace/ring_buffer.c:4203
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81192710-ffffffff81192788: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.4: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff8119e500)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff8119e500-ffffffff8119e578: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.8: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811b5ad0)
  Location: kernel/trace/ring_buffer.c:4300
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff811b5ad0-ffffffff811b5bbf: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.11: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811b33b0)
  Location: kernel/trace/ring_buffer.c:4846
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff811b33b0-ffffffff811b349f: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.13: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811b38e0)
  Location: kernel/trace/ring_buffer.c:4953
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff811b38e0-ffffffff811b39cf: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.15: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811dd6e0)
  Location: kernel/trace/ring_buffer.c:4953
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff811dd6e0-ffffffff811dd836: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 5.19: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81213d80)
  Location: kernel/trace/ring_buffer.c:4995
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff81213d80-ffffffff81213edc: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 6.2: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff8125d710)
  Location: kernel/trace/ring_buffer.c:5101
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff8125d710-ffffffff8125d8ac: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 6.5: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81274990)
  Location: kernel/trace/ring_buffer.c:5108
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff81274990-ffffffff81274b2c: ring_buffer_read_prepare (STB_GLOBAL)
  

• In 6.8: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct trace_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff8128f0f0)
  Location: kernel/trace/ring_buffer.c:5014
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
    - kernel/trace/trace_kdb.c:ftrace_dump_buf
  

  Symbols:

  ffffffff8128f0f0-ffffffff8128f212: ring_buffer_read_prepare (STB_GLOBAL)
  

Arch

• In arm64: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffff800010217e00)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffff800010217e00-ffff800010217ed4: ring_buffer_read_prepare (STB_GLOBAL)
  

• In armhf: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (c0456748)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  c0456748-c04567f8: ring_buffer_read_prepare (STB_GLOBAL)
  

• In ppc64el: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (c000000000299a70)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  c000000000299a70-c000000000299b60: ring_buffer_read_prepare (STB_GLOBAL)
  

• In riscv64: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffe000176da4)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
  

  Symbols:

  ffffffe000176da4-ffffffe000176e36: ring_buffer_read_prepare (STB_GLOBAL)
  

Flavor

• In aws: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81196b20)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81196b20-ffffffff81196b98: ring_buffer_read_prepare (STB_GLOBAL)
  

• In azure: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff81189e10)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff81189e10-ffffffff81189e88: ring_buffer_read_prepare (STB_GLOBAL)
  

• In gcp: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811948f0)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff811948f0-ffffffff81194968: ring_buffer_read_prepare (STB_GLOBAL)
  

• In lowlatency: ✅

  struct ring_buffer_iter *ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu, gfp_t flags);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In kernel/trace/ring_buffer.c (ffffffff811a2500)
  Location: kernel/trace/ring_buffer.c:4204
  Inline: False
  Direct callers:
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace.c:__tracing_open
    - kernel/trace/trace_kdb.c:kdb_ftdump
    - kernel/trace/trace_kdb.c:kdb_ftdump
  

  Symbols:

  ffffffff811a2500-ffffffff811a2578: ring_buffer_read_prepare (STB_GLOBAL)
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• Changed between 5.0 and 5.3 ⚠️

  • Param added. gfp_t flags
• No changes between 5.3 and 5.4 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Param type changed. struct ring_buffer *buffer ➡️ struct trace_buffer *buffer
• 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

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

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 ✅