[PATCH -next] writeback: Cleanup bdi_sched_wait()

[Xiu Jianfeng]

bdi_sched_wait() is no longer used since commit 839a8e8660b6 ("writeback:
replace custom worker pool implementation with unbound workqueue"),
so remove it.

Signed-off-by: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
---
 include/linux/backing-dev.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index d452071db572..e84b745a6811 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -140,12 +140,6 @@ static inline bool mapping_can_writeback(struct address_space *mapping)
 	return inode_to_bdi(mapping->host)->capabilities & BDI_CAP_WRITEBACK;
 }
 
-static inline int bdi_sched_wait(void *word)
-{
-	schedule();
-	return 0;
-}
-
 #ifdef CONFIG_CGROUP_WRITEBACK
 
 struct bdi_writeback *wb_get_lookup(struct backing_dev_info *bdi,
-- 
2.17.1