vfs_littlefs_file_t struct

a file descriptor That's also a singly linked list used for keeping tracks of all opened file descriptor Shortcomings/potential issues of 32-bit hash (when CONFIG_LITTLEFS_USE_ONLY_HASH) listed here: * unlink - If a different file is open that generates a hash collision, it will report an error that it cannot unlink an open file. * rename - If a different file is open that generates a hash collision with src or dst, it will report an error that it cannot rename an open file. Potential consequences: 1. A file cannot be deleted while a collision-geneating file is open. Worst-case, if the other file is always open during the lifecycle of your app, it's collision file cannot be deleted, which in the worst-case could cause storage-capacity issues. 2. Same as (1), but for renames