On Tue, Aug 15, 2017 at 10:44:15AM +0300, Vladimir Sementsov-Ogievskiy wrote:
15.08.2017 09:19, Manos Pitsidianakis wrote:
block/backup.c currently uses before write notifiers on the targeted
node. We can create a filter node instead to intercept write requests
for the backup job on the BDS level, instead of the BlockBackend level.
Hi Manos!
Looks interesting but what is the real benefit of it? It doesn't look
like it simplifies the code.. Also, is it affect performance?
I think it worth describing in commit message.
The goal is to refactor the block layer into being more modular instead
of having hard coded features. I don't suspect this will have any kind
of performance gains, this is a minor change. Before write notifiers are
not needed if you can intercept the write requests on the way.
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