On Tue, Aug 10, 2021 at 3:12 PM Fengnan Chang <changfengnan@xxxxxxxx> wrote: > > Remove cache=always still have this problem, this problem is related > about FUSE_CAP_WRITEBACK_CACHE. FUSE_CAP_WRITEBACK_CACHE by definition asks the kernel to trust its own inode attributes. So I don't think we should fix its semantics. Instead, in your case, it seems that the two mnts (PATHA and PATHB) are not sharing the same superblock. I would suggest fixing it at a higher level: 1. use bind-mount to mount PATHA and PATHB, 2. or add a `tag=xxx` argument to fuse mount option to uniquely identify a fuse file system (just like we do in the virtiofs case) Cheers, Tao -- Into Sth. Rich & Strange
