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From: Kiran T <kiran.lkml@gmail.com>
Date: Thu, 7 Sep 2017 10:38:16 -0700
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Subject: Accessing userspace created persistent eBPF maps from kernel bpf
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Hello,
The samples and test cases have examples showing how user space
programs can pin maps and get pinned maps as FDs.  However, how would
one access a user-space created pinned map from kernel space, without
having to statically have a 'maps' section defined (and depend on the
elf loader)?

Thanks,
Kiran