writeback: add bg_threshold parameter to __bdi_update_bandwidth()
No behavior change.
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 04cf3b9..2807656 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -675,7 +675,7 @@
static void wb_update_bandwidth(struct bdi_writeback *wb,
unsigned long start_time)
{
- __bdi_update_bandwidth(wb->bdi, 0, 0, 0, 0, start_time);
+ __bdi_update_bandwidth(wb->bdi, 0, 0, 0, 0, 0, start_time);
}
/*
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 2b8963f..ddb4652 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -143,6 +143,7 @@
void __bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index c16ddd8..4b954c9 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -779,6 +779,7 @@
void __bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
@@ -815,6 +816,7 @@
static void bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long thresh,
+ unsigned long bg_thresh,
unsigned long dirty,
unsigned long bdi_thresh,
unsigned long bdi_dirty,
@@ -823,8 +825,8 @@
if (time_is_after_eq_jiffies(bdi->bw_time_stamp + BANDWIDTH_INTERVAL))
return;
spin_lock(&bdi->wb.list_lock);
- __bdi_update_bandwidth(bdi, thresh, dirty, bdi_thresh, bdi_dirty,
- start_time);
+ __bdi_update_bandwidth(bdi, thresh, bg_thresh, dirty,
+ bdi_thresh, bdi_dirty, start_time);
spin_unlock(&bdi->wb.list_lock);
}
@@ -912,8 +914,9 @@
if (!bdi->dirty_exceeded)
bdi->dirty_exceeded = 1;
- bdi_update_bandwidth(bdi, dirty_thresh, nr_dirty,
- bdi_thresh, bdi_dirty, start_time);
+ bdi_update_bandwidth(bdi, dirty_thresh, background_thresh,
+ nr_dirty, bdi_thresh, bdi_dirty,
+ start_time);
/* Note: nr_reclaimable denotes nr_dirty + nr_unstable.
* Unstable writes are a feature of certain networked