From f362dc154d776630fd0c02062b50e9f02d57476f Mon Sep 17 00:00:00 2001
From: Conn O'Griofa <connogriofa@gmail.com>
Date: Sun, 24 Jul 2016 17:18:39 +0100
Subject: [PATCH] zram-swap: CONFIG_PROCD_ZRAM_TMPFS compatibility
Enable CONFIG_PROCD_ZRAM_TMPFS compatibility via two changes to list_cpu_idx():
* detect if /tmp is being used by /dev/zram0; if yes, offset initial value by 1 to skip first zram device.
* hot-add /dev/zram1, if not already present.
Signed-off-by: Conn O'Griofa >connogriofa@gmail.com>
---
package/system/zram-swap/files/zram.init | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/package/system/zram-swap/files/zram.init b/package/system/zram-swap/files/zram.init
index 23de915c8f..431e47c8f9 100644
--- a/package/system/zram-swap/files/zram.init
+++ b/package/system/zram-swap/files/zram.init
@@ -71,8 +71,17 @@ zram_reset()
list_cpu_idx()
{
- local line i=0
-
+ # Offset by 1 if /dev/zram0 is in use by /tmp
+ if [ "$(mount | grep /dev/zram0)" ]; then
+ local line i=1
+ # Hot-add new ZRAM device (if necessary)
+ if [ ! -b /dev/zram1 ]; then
+ cat /sys/class/zram-control/hot_add
+ fi
+ else
+ local line i=0
+ fi
+
while read line; do {
case "$line" in
[Pp]rocessor*)
--
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