[$] The end of tasklets

A common problem in kernel development is controlling when aspecific task should be done. Kernel code often executes in contexts wheresome actions (sleeping, for example, or calling into filesystems) are notpossible. Other actions, while possible, may prevent the kernel fromtaking care of a more important task in a timely manner. The kernelcommunity has developed a number of deferred-execution mechanisms designedto ensure that every task is handled at the right time. One of thosemechanisms, tasklets, has been eyed for removal for years; that removalmight just happen in the near future.