From: Daniel Borkmann <daniel@iogearbox.net>
Date: Sun, 31 Dec 2017 15:12:24 +0000 (+0100)
Subject: Merge branch 'bpf-offload-report-dev'
X-Git-Tag: v4.16-rc1~123^2~227^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5620e1a8e2e6f96bdb72abfd68a56ce8cb94dd4d;p=thirdparty%2Fkernel%2Flinux.git

Merge branch 'bpf-offload-report-dev'

Jakub Kicinski says:

====================
This series is a redo of reporting offload device information to
user space after the first attempt did not take into account name
spaces.  As requested by Kirill offloads are now protected by an
r/w sem.  This allows us to remove the workqueue and free the
offload state fully when device is removed (suggested by Alexei).

Net namespace is reported with a device/inode pair.

The accompanying bpftool support is placed in common code because
maps will have very similar info.  Note that the UAPI information
can't be nicely encapsulated into a struct, because in case we
need to grow the device information the new fields will have to
be added at the end of struct bpf_prog_info, we can't grow
structures in the middle of bpf_prog_info.

v3:
 - use dev_get_by_index();
 - redo ns code (new patch 6).
v2:
 - rework the locking in patch 1 (use RCU instead of locking
   dependencies);
 - grab RTNL for a short time in patch 6;
 - minor update to the test in patch 8.
====================

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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5620e1a8e2e6f96bdb72abfd68a56ce8cb94dd4d