Replacement of deprecated kernel APIs

The kernel community tries to never change the user-space API in ways that will break applications, but it explicitly allows any internal API to be changed at any time if a solid technical reason to do so exists. But that doesn't mean that such changes are easy to do. At the 2018 Kernel Maintainers Summit, Kees Cook led a discussion on the challenges he has encountered when trying to effect large-scale API changes and what might be done to make such changes go more smoothly.

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