Hello Chris,
> But, in your ioctls you want to deal with [file, offset, len], not
> directly with block numbers. COW means that blocks can move around
> without you knowing, and some of the btrfs internals will COW files in
> order to relocate storage.
> So, what you want is a dedup file (or files) where your DB knows a given
> offset in the file has a given csum.
how do I track if a certain block has already been deduplicated?
So, if I only have file, offset, len and not the block number, is there
a way from userland to tell if two blocks are already point to the same
block?
Thomas
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
