Merge remote-tracking branch 'linus/master' into testing

1 files changed, 7 insertions, 2 deletions

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 579a5007c69..4e198ca1f68 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -47,11 +47,16 @@ enum wb_reason {
 	WB_REASON_LAPTOP_TIMER,
 	WB_REASON_FREE_MORE_MEM,
 	WB_REASON_FS_FREE_SPACE,
+	/*
+	 * There is no bdi forker thread any more and works are done
+	 * by emergency worker, however, this is TPs userland visible
+	 * and we'll be exposing exactly the same information,
+	 * so it has a mismatch name.
+	 */
 	WB_REASON_FORKER_THREAD,
 
 	WB_REASON_MAX,
 };
-extern const char *wb_reason_name[];
 
 /*
  * A control structure which tells the writeback code what to do.  These are
@@ -78,6 +83,7 @@ struct writeback_control {
 	unsigned tagged_writepages:1;	/* tag-and-write to avoid livelock */
 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
 	unsigned range_cyclic:1;	/* range_start is cyclic */
+	unsigned for_sync:1;		/* sync(2) WB_SYNC_ALL writeback */
 };
 
 /*
@@ -94,7 +100,6 @@ int try_to_writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
 void sync_inodes_sb(struct super_block *);
 long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages,
 				enum wb_reason reason);
-long wb_do_writeback(struct bdi_writeback *wb, int force_wait);
 void wakeup_flusher_threads(long nr_pages, enum wb_reason reason);
 void inode_wait_for_writeback(struct inode *inode);