Project quota behaviour on hardlinks

[Dave Chinner]

On Mon, Nov 26, 2012 at 12:47:08PM +0530, Varun Shastry wrote:
> Hello everyone,
> 
> I wanted to know how project quota behaves on hardlinks when created in
> different tree structures based on below 2 situations.

Test it and see.

> * Does it account twice if the file is hard linked in the same parent?

Hard links are only accounted once to the owner of the inode.

> * Does it account twice if the file is hard linked in a different tree
> which is also set quota in other project?

You can't hard link across directory tree quota boundaries - you'll
get EXDEV. Similarly for rename across directory tree boundaries.

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com