On 06.05.20 17:52, Dr. David Alan Gilbert wrote: > * Max Reitz ([email protected]) wrote: >> Hi, >> >> This RFC consists of two patch series, one for virtiofsd (i.e., to be >> applied to the qemu repo), and one for Linux. >> >> The problem it wants to solve is that virtiofsd just passes through the >> stat.st_ino value from the host to the guest, without taking stat.st_dev >> into account. Therefore, it is generally impossible to uniquely >> identify nodes in the guest by their st_dev/st_ino combinations. >> >> One way to fix this would be to derive some algorithm to derive a unique >> st_ino value from the st_dev/st_ino combination on the host, but this is >> not always possible. >> >> So what this series does it basically passing through st_dev alongside >> st_ino: We can let the guest create auto-mounted submounts for every >> host mount point, so that they get their own dedicated st_dev. This is >> similar to what NFS does with the crossmnt option. > > Nice; this should probably get cc'd to fuse-devel and/or put as a pull > into their github to see what they have to say.
Sure, I just thought maybe I should gather some opinions here first. :) Max
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