DepSurf

Function: __cmpxchg_u64_acquire

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: Absent ⚠️
• In 4.13: Absent ⚠️
• In 4.15: Absent ⚠️
• In 4.18: Absent ⚠️
• In 5.0: Absent ⚠️
• In 5.3: Absent ⚠️
• In 5.4: Absent ⚠️
• In 5.8: Absent ⚠️
• In 5.11: Absent ⚠️
• In 5.13: Absent ⚠️
• In 5.15: Absent ⚠️
• In 5.19: Absent ⚠️
• In 6.2: Absent ⚠️
• In 6.5: Absent ⚠️
• In 6.8: Absent ⚠️

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Duplicate, Full Inline ⚠️

  Collision: Static Duplication

  Inline: Full

  Transformation: False

  Instances:

  In kernel/sched/rt.c (0)
  Location: arch/powerpc/include/asm/cmpxchg.h:381
  Inline: True
  

  In kernel/locking/mutex.c (c000000000ee6b7c)
  Location: arch/powerpc/include/asm/cmpxchg.h:381
  Inline: True
  Inline callers:
    - kernel/locking/mutex.c:ww_mutex_lock_interruptible
    - kernel/locking/mutex.c:ww_mutex_lock
    - kernel/locking/mutex.c:mutex_lock_killable
    - kernel/locking/mutex.c:mutex_lock_interruptible
    - kernel/locking/mutex.c:mutex_lock
    - kernel/locking/mutex.c:mutex_trylock_recursive
  

  In kernel/locking/rwsem.c (c0000000001c0b28)
  Location: arch/powerpc/include/asm/cmpxchg.h:381
  Inline: True
  Inline callers:
    - kernel/locking/rwsem.c:down_write_trylock
    - kernel/locking/rwsem.c:down_write_killable
    - kernel/locking/rwsem.c:down_write
    - kernel/locking/rwsem.c:down_read_trylock
    - kernel/locking/rwsem.c:rwsem_down_write_slowpath
    - kernel/locking/rwsem.c:rwsem_optimistic_spin
  

  In kernel/locking/osq_lock.c (0)
  Location: arch/powerpc/include/asm/cmpxchg.h:381
  Inline: True
  

  In kernel/locking/rtmutex.c (c000000000ee8138)
  Location: arch/powerpc/include/asm/cmpxchg.h:381
  Inline: True
  Inline callers:
    - kernel/locking/rtmutex.c:rt_mutex_trylock
    - kernel/locking/rtmutex.c:rt_mutex_timed_lock
    - kernel/locking/rtmutex.c:rt_mutex_lock_interruptible
    - kernel/locking/rtmutex.c:rt_mutex_lock
  

• In riscv64: Absent ⚠️

Flavor

• In aws: Absent ⚠️
• In azure: Absent ⚠️
• In gcp: Absent ⚠️
• In lowlatency: Absent ⚠️

Differences