From: Tang Junhui <tang.junhui@xxxxxxxxxx> Hi, everyone: I create bcache device in 3.10 kernel with bcache of 3.10 kernel, and we had used it for while, then we backport upstream code to bcache of 3.10 kernel, and build a new kernel module to use in 3.10 kernel. Is there any compatible issues. In other words, did bcache on-disk data have changed from 3.10 branch to hight branchs? If I upgrade kernel, does the bcache data produced in the old kernel still can work? Thanks, Tang
