From f48a0d7a360e1b5db519b85527efbb92dc0f5136 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 28 Sep 2017 11:25:03 -0600
Subject: [PATCH] writeback: remove 'range_cyclic' argument for
 wb_start_writeback()

References: bnc#1081213
Patch-mainline: v4.15-rc1
Git-commit: 47410d88f665486bf91f02242ab5d5692b8887ac

All the callers pass in 'true' for range_cyclic, so kill the
argument.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
 fs/fs-writeback.c           | 6 +++---
 include/linux/backing-dev.h | 2 +-
 mm/page-writeback.c         | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 6db974fe22d3..5b53159c079f 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -934,7 +934,7 @@ static void bdi_split_work_to_wbs(struct backing_dev_info *bdi,
 #endif	/* CONFIG_CGROUP_WRITEBACK */
 
 void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
-			bool range_cyclic, enum wb_reason reason)
+			enum wb_reason reason)
 {
 	struct wb_writeback_work *work;
 
@@ -955,7 +955,7 @@ void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
 
 	work->sync_mode	= WB_SYNC_NONE;
 	work->nr_pages	= nr_pages;
-	work->range_cyclic = range_cyclic;
+	work->range_cyclic = 1;
 	work->reason	= reason;
 	work->auto_free	= 1;
 
@@ -1971,7 +1971,7 @@ void wakeup_flusher_threads(enum wb_reason reason)
 
 		list_for_each_entry_rcu(wb, &bdi->wb_list, bdi_node)
 			wb_start_writeback(wb, wb_split_bdi_pages(wb, nr_pages),
-						true, reason);
+						reason);
 	}
 	rcu_read_unlock();
 }
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index e9c967b86054..c3253d891025 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -39,7 +39,7 @@ static inline struct backing_dev_info *bdi_alloc(gfp_t gfp_mask)
 }
 
 void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
-			bool range_cyclic, enum wb_reason reason);
+			enum wb_reason reason);
 void wb_start_background_writeback(struct bdi_writeback *wb);
 void wb_workfn(struct work_struct *work);
 void wb_wakeup_delayed(struct bdi_writeback *wb);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 5c51e81b9572..f37bcc8f0bed 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1993,8 +1993,8 @@ void laptop_mode_timer_fn(unsigned long data)
 	rcu_read_lock();
 	list_for_each_entry_rcu(wb, &q->backing_dev_info->wb_list, bdi_node)
 		if (wb_has_dirty_io(wb))
-			wb_start_writeback(wb, nr_pages, true,
-					   WB_REASON_LAPTOP_TIMER);
+			wb_start_writeback(wb, nr_pages,
+						WB_REASON_LAPTOP_TIMER);
 	rcu_read_unlock();
 }