Messages in this thread | | | Date | Fri, 16 Oct 2015 19:56:49 +0200 | From | Daniel Borkmann <> | Subject | Re: [PATCH net-next 3/4] bpf: add support for persistent maps/progs |
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On 10/16/2015 07:42 PM, Alexei Starovoitov wrote: > On 10/16/15 10:21 AM, Hannes Frederic Sowa wrote: >> Another question: >> Should multiple mount of the filesystem result in an empty fs (a new >> instance) or in one were one can see other ebpf-fs entities? I think >> Daniel wanted to already use the mountpoint as some kind of hierarchy >> delimiter. I would have used directories for that and multiple mounts >> would then have resulted in the same content of the filesystem. IMHO >> this would remove some ambiguity but then the question arises how this >> is handled in a namespaced environment. Was there some specific reason >> to do so? > > That's an interesting question! > I think all mounts should be independent. > I can see tracing using one and networking using another one > with different hierarchies suitable for their own use cases. > What's an advantage to have the same content everywhere? > Feels harder to manage, since different users would need to > coordinate.
I initially had it as a mount_single() file system, where I was thinking to have an entry under /sys/fs/bpf/, so all subsystems would work on top of that mount point, but for the same reasons above I lifted that restriction.
Cheers, Daniel
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