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| author | Jakub Kicinski <kuba@kernel.org> | 2025-04-10 18:34:08 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-04-10 18:34:09 -0700 |
| commit | 8127837aae8f63ec30fcba7f5afd4887f83111cd (patch) | |
| tree | 5cd2ae7708d894c5823c0482c67db0be54ea697c /kernel | |
| parent | 82e401319b595bd9843cd7a46d035c00894cfe73 (diff) | |
| parent | 0f08335ade71273f89d19412268b48b55f3e3726 (diff) | |
| download | linux-next-8127837aae8f63ec30fcba7f5afd4887f83111cd.tar.gz linux-next-8127837aae8f63ec30fcba7f5afd4887f83111cd.zip | |
Merge branch 'trace-add-tracepoint-for-tcp_sendmsg_locked'
Breno Leitao says:
====================
trace: add tracepoint for tcp_sendmsg_locked()
Meta has been using BPF programs to monitor tcp_sendmsg() for years,
indicating significant interest in observing this important
functionality. Adding a proper tracepoint provides a stable API for all
users who need visibility into TCP message transmission.
David Ahern is using a similar functionality with a custom patch[1]. So,
this means we have more than a single use case for this request, and it
might be a good idea to have such feature upstream.
Link: https://lore.kernel.org/all/70168c8f-bf52-4279-b4c4-be64527aa1ac@kernel.org/ [1]
v2: https://lore.kernel.org/20250407-tcpsendmsg-v2-0-9f0ea843ef99@debian.org
v1: https://lore.kernel.org/20250224-tcpsendmsg-v1-1-bac043c59cc8@debian.org
====================
Link: https://patch.msgid.link/20250408-tcpsendmsg-v3-0-208b87064c28@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/bpf/btf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 16ba36f34dfa..24a26b4bb0b8 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -6541,6 +6541,7 @@ static const struct bpf_raw_tp_null_args raw_tp_null_args[] = { { "xprt_put_cong", 0x10 }, /* tcp */ { "tcp_send_reset", 0x11 }, + { "tcp_sendmsg_locked", 0x100 }, /* tegra_apb_dma */ { "tegra_dma_tx_status", 0x100 }, /* timer_migration */ |