mirror of
https://github.com/hardkernel/linux.git
synced 2026-04-19 03:50:43 +09:00
4c4fde210c
Song Liu says: ==================== net: add a set of tracepoints to tcp stack Changes from v1: Fix build error (with ipv6 as ko) by adding EXPORT_TRACEPOINT_SYMBOL_GPL for trace_tcp_send_reset. These patches add the following tracepoints to tcp stack. tcp_send_reset tcp_receive_reset tcp_destroy_sock tcp_set_state These tracepoints can be used to track TCP state changes. Such state changes include but are not limited to: connection establish, connection termination, tx and rx of RST, various retransmits. Currently, we use the following kprobes to trace these events: int kprobe__tcp_validate_incoming int kprobe__tcp_send_active_reset int kprobe__tcp_v4_send_reset int kprobe__tcp_v6_send_reset int kprobe__tcp_v4_destroy_sock int kprobe__tcp_set_state int kprobe__tcp_retransmit_skb These tracepoints will help us simplify this work. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.