The Linux kernel’s “new mount API” that has been in the kernel since 2019 and recently made rounds for taking 6+ years to land the man page documentation on it will soon be the the only mount API internally within the kernel. Removing the “old” Linux kernel mount API internals is a candidate for the upcoming Linux 7.0 kernel cycle.

Christian Brauner has queued a patch by Red Hat’s Eric Sandeen to remove the kernel-internal portion of the old mount API code from the kernel.