From c08e4d3e5d7a95e091180f22dc9fde850feea327 Mon Sep 17 00:00:00 2001
From: Levente Kurusa <lkurusa@acm.org>
Date: Thu, 4 Oct 2018 12:51:21 -0400
Subject: [PATCH] blkio: parse leaf_weight_device

---
 src/blkio.rs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/blkio.rs b/src/blkio.rs
index 6864df3..db879e3 100644
--- a/src/blkio.rs
+++ b/src/blkio.rs
@@ -237,7 +237,7 @@ pub struct BlkIo {
     /// control group's tasks.
     pub leaf_weight: u64,
     /// Same as `leaf_weight`, but per-block-device.
-    pub leaf_weight_device: String,
+    pub leaf_weight_device: Vec<BlkIoData>,
     /// Total number of sectors transferred between the block devices and the control group's
     /// tasks.
     pub sectors: String,
@@ -479,8 +479,9 @@ impl BlkIoController {
                 .unwrap_or(0u64),
             leaf_weight_device: self
                 .open_path("blkio.leaf_weight_device", false)
-                .and_then(|file| read_string_from(file))
-                .unwrap_or("".to_string()),
+                .and_then(read_string_from)
+                .and_then(parse_blkio_data)
+                .unwrap_or(Vec::new()),
             sectors: self
                 .open_path("blkio.sectors", false)
                 .and_then(|file| read_string_from(file))