All,

Its a common perception that the resolution of a file having linkto file on the 
hashed-subvol requires two hops:

1. client to hashed-subvol.
2. client to the subvol where file actually resides.

While it is true that a fresh lookup behaves this way, the other fact that 
get's ignored is that fresh lookups on files are almost always prevented by 
readdirplus. Since readdirplus picks the dentry from the subvolume where actual 
file (data-file) resides, the two hop cost is most likely never witnessed by 
the application.

A word of caution is that I've not done any testing to prove this observation 
:).

regards,
Raghavendra
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