From: Rui Salvaterra Date: Tue, 23 Jun 2020 11:29:54 +0000 (+0100) Subject: zram-swap: enable swap discard X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=0bd7dfa3ed60588ec83a8f60f48b6991ebb16940;p=openwrt%2Fstaging%2Flinusw.git 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 --- 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()