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-rw-r--r--fs/fs-writeback.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 0a90dc557748..bbccf68b38db 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -99,6 +99,8 @@ static bool wb_io_lists_populated(struct bdi_writeback *wb)
return false;
} else {
set_bit(WB_has_dirty_io, &wb->state);
+ atomic_long_add(wb->avg_write_bandwidth,
+ &wb->bdi->tot_write_bandwidth);
return true;
}
}
@@ -106,8 +108,11 @@ static bool wb_io_lists_populated(struct bdi_writeback *wb)
static void wb_io_lists_depopulated(struct bdi_writeback *wb)
{
if (wb_has_dirty_io(wb) && list_empty(&wb->b_dirty) &&
- list_empty(&wb->b_io) && list_empty(&wb->b_more_io))
+ list_empty(&wb->b_io) && list_empty(&wb->b_more_io)) {
clear_bit(WB_has_dirty_io, &wb->state);
+ atomic_long_sub(wb->avg_write_bandwidth,
+ &wb->bdi->tot_write_bandwidth);
+ }
}
/**