On Mon, Jul 08, 2013 at 09:44:41AM -0400, sheng qiu wrote: > Hi Kent, > > Thanks a lot for your reply. > > Then i have a question about the bucket invalidation. when bcache > choose to replace a bucket, will the keys that reside on that bucket > still be in the btree? since you do not have information about which > keys reside on the bucket, how do you update the btree? > > i can think out two ways, one is you periodically scan the btree nodes > and delete the stale nodes, the other way is when you get a cache hit > on stale nodes, then you delete it at that moment. How bcache does > this? Can you tell me the functions involve for these operations? i am > interested in this part of codes. This is documented in the code - start here: http://evilpiepirate.org/git/linux-bcache.git/tree/drivers/md/bcache/bcache.h?h=bcache-dev -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
