From: Daniel Borkmann <daniel@iogearbox.net>
Date: Fri, 10 Aug 2018 18:54:08 +0000 (+0200)
Subject: Merge branch 'bpf-btf-for-htab-lru'
X-Git-Tag: v4.19-rc1~140^2~24^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=74b247f4c36315e5c08580700a68e0eb3b72de03;p=thirdparty%2Flinux.git

Merge branch 'bpf-btf-for-htab-lru'

Yonghong Song says:

====================
Commit a26ca7c982cb ("bpf: btf: Add pretty print support to
the basic arraymap") added pretty print support to array map.
This patch adds pretty print for hash and lru_hash maps.

The following example shows the pretty-print result of a pinned
hashmap. Without this patch set, user will get an error instead.

    struct map_value {
            int count_a;
            int count_b;
    };

    cat /sys/fs/bpf/pinned_hash_map:

    87907: {87907,87908}
    57354: {37354,57355}
    76625: {76625,76626}
    ...

Patch #1 fixed a bug in bpffs map_seq_next() function so that
all elements in the hash table will be traversed.
Patch #2 implemented map_seq_show_elem() and map_check_btf()
callback functions for hash and lru hash maps.
Patch #3 enhanced tools/testing/selftests/bpf/test_btf.c to
test bpffs hash and lru hash map pretty print.
====================

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

74b247f4c36315e5c08580700a68e0eb3b72de03