Simultaneous flock commands on a single file do not cause a race condition

Solution Unverified - Updated -

Issue

  • When multiple processes attempt to lock the same file simultaneously using the flock command, will a race condition occur, or is the lock acquisition an atomic operation guaranteed by the kernel?

Environment

  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7

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