Is it safe to use "mount -o remount" on a live partition?

Solution Unverified - Updated -

Issue

  • Is it safe to run command mount -o remount,acl <mountpoint> on a live partition?
  • Will it effect the running application in any way?
  • Is there any other way to add acl flags to filesystem, without any interrupt?

Environment

  • Red Hat Enterprise Linux (ALL)

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