sys_open_tree 867 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_open_tree, sys_open_tree) sys_open_tree 991 include/linux/syscalls.h asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); sys_open_tree 836 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_open_tree, sys_open_tree) sys_open_tree 836 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_open_tree, sys_open_tree)