zfsonlinux/zfs — pull request #899 by foobarz (2012-08-26 20:59:53+00:00)
Title: Modified function vdev_elevator_switch to use elevator_change.

It was using a user-space helper to echo elevator to /sys/block//queue/scheduler. Echo command in user-space failed if echo was not present, such as when zfs is builtin and using only a minimal or no initramfs.

It may need:
#include
unless that is pulled in by the zfs headers.

My name on the commit is "System Operator", but it should have been foobarz!
Please review the change, and maybe use if approved.