From: Jakub Kicinski <jakub.kicin...@netronome.com>
Date: Tue, 24 Oct 2017 20:11:28 -0700
> From: Quentin Monnet <quentin.mon...@netronome.com>
>
> One possible cause of failure for `bpftool {prog|map} pin * file FILE`
> is the FILE not being in an eBPF virtual file system (bpffs). In this
> case, make bpftool attempt to mount bpffs on the parent directory of the
> FILE. Then, if this operation is successful, try again to pin the
> object.
>
> The code for mnt_bpffs() is a copy of function bpf_mnt_fs() from
> iproute2 package (under lib/bpf.c, taken at commit 4b73d52f8a81), with
> modifications regarding handling of error messages.
>
> Signed-off-by: Quentin Monnet <quentin.mon...@netronome.com>
> Signed-off-by: Jakub Kicinski <jakub.kicin...@netronome.com>
Applied.
