Modernizing the tasklet API

Tasklets offer a deferred-execution method in the Linux kernel; they have been available since the 2.3 development series. They allow interrupt handlers to schedule further work to be executed as soon as possible after the handler itself. The tasklet API has its shortcomings, but it has stayed in place while other deferred-execution methods, including workqueues, have been introduced. Recently, Kees Cook posted a security-inspired patch set (also including work from Romain Perier) to improve the tasklet API. This change is uncontroversial, but it provoked a discussion that might lead to the removal of the tasklet API in the (not so distant) future.

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