On Mon, 24 Nov 2014 09:38:27 -0600, Eric Sandeen wrote: > On 11/24/14 9:33 AM, Theodore Ts'o wrote: >> On Mon, Nov 24, 2014 at 12:43:51PM +0000, Holger Hoffstätte wrote: >>> >>> Cleaning out some old research papers I came again across the proposal >>> for "space maps" in ext4 [1]. What happened to that? Was it rejected >>> due to too much risk or other technical reasons? The benefits sound >>> appealing, so I was wondering if there's something fundamentally wrong >>> with the suggested approach. >> >> No one ever submitted patches. > > Was just checking that too. I'm always mystified by the folks who take the > time to write & submit & present papers, but don't submit patches. Thanks - that's all very sad. The author has a homepage at http://saurabh.io/ so maybe someone with a sufficiently large army of lawyers can contact him? I couldn't find any code right now either. As for the patents - I'm outside the US and the paper explicitly mentions using Linux' built-in RBTrees instead of AVL and a few othe minor differences to ZFS, mostly relating to persisting the maps. Holger -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
