From 0bd7dfa3ed60588ec83a8f60f48b6991ebb16940 Mon Sep 17 00:00:00 2001 From: Rui Salvaterra Date: Tue, 23 Jun 2020 12:29:54 +0100 Subject: [PATCH] zram-swap: enable swap discard Zram block devices have supported trim/discard for over six years, let's enable it. This allows the zram device to actually free up allocated memory when it's marked as unused in the filesystem metadata, as explained in more detail in the original commit message [1]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/block/zram/zram_drv.c?h=linux-4.14.y&id=f4659d8e620d08bd1a84a8aec5d2f5294a242764 Signed-off-by: Rui Salvaterra --- package/system/zram-swap/files/zram.init | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package/system/zram-swap/files/zram.init b/package/system/zram-swap/files/zram.init index c855bbc087..a6126e578f 100755 --- a/package/system/zram-swap/files/zram.init +++ b/package/system/zram-swap/files/zram.init @@ -182,7 +182,7 @@ start() zram_comp_streams "$zram_dev" echo $(( $zram_size * 1024 * 1024 )) >"/sys/block/$( basename "$zram_dev" )/disksize" mkswap "$zram_dev" - swapon $zram_priority "$zram_dev" + swapon -d $zram_priority "$zram_dev" } stop()