f2fs_realtime_discard_enable
if (!f2fs_realtime_discard_enable(sbi) ||
if (!f2fs_realtime_discard_enable(sbi))
if (!f2fs_realtime_discard_enable(sbi))
if (f2fs_realtime_discard_enable(sbi))
if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && done) {
if (!f2fs_realtime_discard_enable(sbi))