Function open_tree

src/backend/libc/mount/syscalls.rs:88–102

(
    dfd: BorrowedFd<'_>,
    filename: &CStr,
    flags: super::types::OpenTreeFlags,
)

#[cfg(linux_kernel)]
pub(crate) fn open_tree(
    dfd: BorrowedFd<'_>,
    filename: &CStr,
    flags: super::types::OpenTreeFlags,
) -> io::Result<OwnedFd> {
    syscall! {
        fn open_tree(
            dfd: c::c_int,
            filename: *const c::c_char,
            flags: c::c_uint
        ) via SYS_open_tree -> c::c_int
    }

    unsafe { ret_owned_fd(open_tree(borrowed_fd(dfd), c_str(filename), flags.bits())) }
}

#[cfg(linux_kernel)]
pub(crate) fn fspick(