diff options
| 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 /include/linux/socket.h | |
| parent | 82e401319b595bd9843cd7a46d035c00894cfe73 (diff) | |
| parent | 0f08335ade71273f89d19412268b48b55f3e3726 (diff) | |
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 'include/linux/socket.h')
| -rw-r--r-- | include/linux/socket.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h index c3322eb3d686..3b262487ec06 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -168,7 +168,7 @@ static inline struct cmsghdr * cmsg_nxthdr (struct msghdr *__msg, struct cmsghdr return __cmsg_nxthdr(__msg->msg_control, __msg->msg_controllen, __cmsg); } -static inline size_t msg_data_left(struct msghdr *msg) +static inline size_t msg_data_left(const struct msghdr *msg) { return iov_iter_count(&msg->msg_iter); } |