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author | Jakub Kicinski <kuba@kernel.org> | 2022-01-10 03:30:37 +0300 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2022-01-10 03:30:38 +0300 |
commit | 6738fc77ffa2575f38b88d85583450184d59ed94 (patch) | |
tree | ec88a6b4b61d85f1dd7eb8706f5b609a7970a116 /net/core/page_pool.c | |
parent | 342402c426902c59491b43d3056a1039e5ca02db (diff) | |
parent | 1c7fab70df085d866a3765955f397ca2b4025b15 (diff) | |
download | linux-6738fc77ffa2575f38b88d85583450184d59ed94.tar.xz |
Merge branch 'net-skb-introduce-kfree_skb_with_reason'
Menglong Dong says:
====================
net: skb: introduce kfree_skb_with_reason()
In this series patch, the interface kfree_skb_with_reason() is
introduced(), which is used to collect skb drop reason, and pass
it to 'kfree_skb' tracepoint. Therefor, 'drop_monitor' or eBPF is
able to monitor abnormal skb with detail reason.
In fact, this series patches are out of the intelligence of David
and Steve, I'm just a truck man :/
Previous discussion is here:
https://lore.kernel.org/netdev/20211118105752.1d46e990@gandalf.local.home/
https://lore.kernel.org/netdev/67b36bd8-2477-88ac-83a0-35a1eeaf40c9@gmail.com/
In the first patch, kfree_skb_with_reason() is introduced and
the 'reason' field is added to 'kfree_skb' tracepoint. In the
second patch, 'kfree_skb()' in replaced with 'kfree_skb_with_reason()'
in tcp_v4_rcv(). In the third patch, 'kfree_skb_with_reason()' is
used in __udp4_lib_rcv().
Changes since v3:
- fix some code style problems in skb.h
Changes since v2:
- rename kfree_skb_with_reason() to kfree_skb_reason()
- make kfree_skb() static inline, as Jakub suggested
Changes since v1:
- rename some drop reason, as David suggested
- add the third patch
====================
Link: https://lore.kernel.org/r/20220109063628.526990-1-imagedong@tencent.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core/page_pool.c')
0 files changed, 0 insertions, 0 deletions