[AVFS] fuse+avfs problem with direct_io

Hi,

An user recently reported a problem about accessing files using 
avfs+fuse. For instance, cat'ing files with zero file length doesn't 
output anything even if avfs would actually return some bytes. Extfs 
handlers sometimes list files with zero file length but the files do 
have a size > 0.

It looks like mounting avfs with the direct_io fuse option fixes this. I 
don't know details about the kernel implementation but I assume that the 
kernel doesn't issue a read operation if the file size is 0 bytes unless 
direct io is enabled.

Miklos, is there any other solution for this problem or should we just 
always enable direct_io in mountavfs? Are there some (performance?) 
drawbacks?

Best Regards,

Ralf Hoffmann

-- 
Homepage: http://www.boomerangsworld.de
E-Mail: Ralf Hoffmann <[email protected]>
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