Commits
Merge branch 'writeback-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux Pull writeback fixes from Fengguang Wu: "Three trivial writeback fixes" * 'writeback-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: CPU hotplug, writeback: Don't call writeback_set_ratelimit() too often during hotplug writeback: correct comment for move_expired_inodes() backing-dev: use kstrto* in preference to simple_strtoul
