From: Jóhann B. Guðmundsson <johannbg@gmail.com>
Date: Sun, 2 Feb 2014 13:29:19 +0000 (+0000)
Subject: udev: add zram to the list of devices inappropriate for symlinks
X-Git-Tag: v209~242
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=99bd4af0c7034f425b4d334986b03e632ab71718;ds=sidebyside

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.
---

diff --git a/rules/60-persistent-storage.rules b/rules/60-persistent-storage.rules
index a4d009ae6..154ffd92c 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"