I don’t know, maybe because rust is of interest to the wider Linux community and has been pretty much since its inception (https://lwn.net/Articles/547145/)?
And with the inclusion of rust in the kernel, and thus the kernel’s need to express its own abstractions and requirements (as well as the impossibility to use alloc and thus box) the limitations (ergonomic and otherwise) of “userland” smart pointers are more salient and relevant than ever.
And with the inclusion of rust in the kernel, and thus the kernel’s need to express its own abstractions and requirements (as well as the impossibility to use alloc and thus box) the limitations (ergonomic and otherwise) of “userland” smart pointers are more salient and relevant than ever.