EXT4 Prepared To Switch To Linux's New Mount API

Written by Michael Larabel in Linux Storage on 13 December 2021 at 05:04 AM EST. 15 Comments
It looks like EXT4 come Linux 5.17 could be making use of the kernel's new mount API. Queued up into EXT4's "dev" branch is transitioning the EXT4 file-system driver to using the kernel's modern mount API.

Linux's new mount API is what came about in recent times as a set of system calls offering more flexibility than the long-standing mount syscall that is a one-shot effort while this new multi-step mounting procedure allows for more options. Below is a presentation by Canonical's Christian Brauner from last year's Open-Source Summit around the new mount API.

The modern mount API is documented here for those interested in all the details.

Over a span of patches now in EXT4 dev, EXT4 has transitioned to the mount API. This code in turn will appear in the Linux 5.17 cycle next year.
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