[$] Bye-bye bdflush()

The addition of system calls to the Linux kernel is a routine affair; ithappens during almost every merge window. The removal of system calls,instead, is much more uncommon. That appears likely to happensoon, though, as discussions proceed on the removal of bdflush().Read on for a look at the purpose and history of this obscure system call and tolearn whether you will miss it (you won't).