f2fs_trylock_op
} else if (!f2fs_trylock_op(sbi, &lc)) {
if (fio->need_lock == LOCK_REQ && !f2fs_trylock_op(fio->sbi, &lc))
if (!f2fs_trylock_op(fio->sbi, &lc)) {
int f2fs_trylock_op(struct f2fs_sb_info *sbi, struct f2fs_lock_context *lc);