---

yaml
---
r: 200619
b: refs/heads/master
c: b8c2f34
h: refs/heads/master
i:
  200617: 1fea17d
  200615: 1f76b38
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d19de7edf59cdd586777b009e0e8fbe5412dd35f
+refs/heads/master: b8c2f3474f1077599ec6e90c2f263f17055cc3d8

trunk/fs/fs-writeback.c

@@ -920,42 +920,32 @@ int bdi_writeback_task(struct bdi_writeback *wb)
 }
 
 /*
- * Schedule writeback for all backing devices. This does WB_SYNC_NONE
- * writeback, for integrity writeback see bdi_queue_work_onstack().
+ * Start writeback of `nr_pages' pages.  If `nr_pages' is zero, write back
+ * the whole world.
  */
-static void bdi_writeback_all(struct super_block *sb, long nr_pages)
+void wakeup_flusher_threads(long nr_pages)
 {
+	struct backing_dev_info *bdi;
 	struct wb_writeback_args args = {
-		.sb		= sb,
-		.nr_pages	= nr_pages,
 		.sync_mode	= WB_SYNC_NONE,
 	};
-	struct backing_dev_info *bdi;
 
-	rcu_read_lock();
+	if (nr_pages) {
+		args.nr_pages = nr_pages;
+	} else {
+		args.nr_pages = global_page_state(NR_FILE_DIRTY) +
+				global_page_state(NR_UNSTABLE_NFS);
+	}
 
+	rcu_read_lock();
 	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
 		if (!bdi_has_dirty_io(bdi))
 			continue;
-
 		bdi_alloc_queue_work(bdi, &args);
 	}
-
 	rcu_read_unlock();
 }
 
-/*
- * Start writeback of `nr_pages' pages.  If `nr_pages' is zero, write back
- * the whole world.
- */
-void wakeup_flusher_threads(long nr_pages)
-{
-	if (nr_pages == 0)
-		nr_pages = global_page_state(NR_FILE_DIRTY) +
-				global_page_state(NR_UNSTABLE_NFS);
-	bdi_writeback_all(NULL, nr_pages);
-}
-
 static noinline void block_dump___mark_inode_dirty(struct inode *inode)
 {
 	if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) {