[openwrt/openwrt] zram-swap: set the zram swap priority to 100 by default

[LEDE Commits]

aparcar pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/7720de419411562cdf08eb98ace7416fe33eeb43

commit 7720de419411562cdf08eb98ace7416fe33eeb43
Author: Rui Salvaterra <rsalvaterra at gmail.com>
AuthorDate: Thu Jun 24 20:05:22 2021 +0100

    zram-swap: set the zram swap priority to 100 by default
    
    New swap devices are added in decreasing priority order, starting at -1. Make
    sure the zram swap device has the highest priority, by default.
    
    Signed-off-by: Rui Salvaterra <rsalvaterra at gmail.com>
---
 package/system/zram-swap/files/zram.init | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/package/system/zram-swap/files/zram.init b/package/system/zram-swap/files/zram.init
index 9fce5e4797..ea9b55680e 100755
--- a/package/system/zram-swap/files/zram.init
+++ b/package/system/zram-swap/files/zram.init
@@ -144,7 +144,10 @@ start()
 
 	local zram_size="$( zram_getsize )"
 	local zram_priority="$( uci -q get system. at system[0].zram_priority )"
-	zram_priority=${zram_priority:+-p $zram_priority}
+
+	if [ -z "$zram_priority" ]; then
+		zram_priority="100"
+	fi
 
 	logger -s -t zram_start -p daemon.debug "activating '$zram_dev' for swapping ($zram_size MegaBytes)"
 
@@ -152,7 +155,7 @@ start()
 	zram_comp_algo "$zram_dev"
 	echo $(( $zram_size * 1024 * 1024 )) >"/sys/block/$( basename "$zram_dev" )/disksize"
 	busybox mkswap "$zram_dev"
-	busybox swapon -d $zram_priority "$zram_dev"
+	busybox swapon -d -p $zram_priority "$zram_dev"
 }
 
 stop()