From 9693c7f0bf20471ae91cc975f2e08fc5fd4a88ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B3hann=20B=2E=20Gu=C3=B0mundsson?= <johannbg@gmail.com>
Date: Sun, 2 Feb 2014 13:29:19 +0000
Subject: [PATCH] udev: add zram to the list of devices inappropriate for
 symlinks

udev seems to have a race condition with swapon to see which can open
/dev/zram0 first, causing swapon to fail. Seems to be most noticeable
on arm devices one out of every 7 times or something.

(cherry picked from commit 99bd4af0c7034f425b4d334986b03e632ab71718)
---
 rules/60-persistent-storage.rules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rules/60-persistent-storage.rules b/rules/60-persistent-storage.rules
index a4d009a..154ffd9 100644
--- a/rules/60-persistent-storage.rules
+++ b/rules/60-persistent-storage.rules
@@ -14,7 +14,7 @@ ACTION=="add", SUBSYSTEM=="module", KERNEL=="block", ATTR{parameters/events_dfl_
 SUBSYSTEM!="block", GOTO="persistent_storage_end"
 
 # skip rules for inappropriate block devices
-KERNEL=="fd*|mtd*|nbd*|gnbd*|btibm*|dm-*|md*", GOTO="persistent_storage_end"
+KERNEL=="fd*|mtd*|nbd*|gnbd*|btibm*|dm-*|md*|zram*", GOTO="persistent_storage_end"
 
 # ignore partitions that span the entire disk
 TEST=="whole_disk", GOTO="persistent_storage_end"