guix/gnu/packages/patches/dstat-skip-devices-without-io.patch

From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Sun, 16 Jun 2019 02:36:23 +0200
Subject: [PATCH] gnu: dstat: Skip devices without I/O.

Taken verbatim from a pull request[0] that will never be merged.

[0]: https://github.com/dagwieers/dstat/pull/164

From 0988589ea4ee092b285bd4049d56add5f61e3f69 Mon Sep 17 00:00:00 2001
From: Tobias Gruetzmacher <tobias-git@23.gs>
Date: Fri, 15 Feb 2019 18:46:57 +0100
Subject: [PATCH] Skip devices without I/O

Linux 4.18+ has added more fields to the diskstats proc file, so the
original skip condition for devices without I/O didn't apply anymore.
---
 dstat | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dstat b/dstat
index 9359965..5c2fb53 100755
--- a/dstat
+++ b/dstat
@@ -763,7 +763,7 @@ class dstat_disk(dstat):
         ret = []
         for l in self.splitlines():
             if len(l) < 13: continue
-            if l[3:] == ['0',] * 11: continue
+            if l[3:] == ['0',] * (len(l) - 3): continue
             name = l[2]
             ret.append(name)
         for item in objlist: ret.append(item)