This is what came up with when reading the code.
In this example of initialization
dmsetup create wbdev --table "0 $sz writeboost $BACKING $CACHE 2 writeback_threshold 70", the number 0 after the word table is called offset. It should be able to accept number other than 0.
But the current Writeboost may only accept 0. I think all users now set the number to 0. Waiting for user report.
This is what came up with when reading the code.
In this example of initialization
dmsetup create wbdev --table "0 $sz writeboost $BACKING $CACHE 2 writeback_threshold 70", the number 0 after the word table is called offset. It should be able to accept number other than 0.But the current Writeboost may only accept 0. I think all users now set the number to 0. Waiting for user report.