probe_dir_writable

indexbus_platform_ops::linux::fs

Function probe_dir_writable 

Source 
pub fn probe_dir_writable(dir: &Path) -> Result<()>
Expand description

Best-effort writability probe for an mmap/SHM directory.

On hugetlbfs, small writes may return EINVAL; this uses set_len(2MiB) instead.