Deprecated Options
These are old, deprecated options which may no longer have any function or have been replaced. They should not be used.
- direct_io: Bypass page cache. Use 
cache.files=offinstead. - kernel_cache: Do not invalidate data cache on file open. Use
  
cache.files=fullinstead. - auto_cache: Invalidate data cache if file mtime or
  size change. Use 
cache.files=auto-fullinstead. (default: false) - async_read: Perform reads asynchronously. Use
  
async_read=trueinstead. - sync_read: Perform reads synchronously. Use
  
async_read=falseinstead. - splice_read: Does nothing.
 - splice_write: Does nothing.
 - splice_move: Does nothing.
 - allow_other: mergerfs v2.35.0 and above sets this FUSE option automatically if running as root.
 - use_ino: Effectively replaced with 
inodecalc.