linux/include/trace
Max Kellermann d927a595ab ceph: add trace points to the MDS client
This patch adds trace points to the Ceph filesystem MDS client:

- request submission (CEPH_MSG_CLIENT_REQUEST) and completion
  (CEPH_MSG_CLIENT_REPLY)
- capabilities (CEPH_MSG_CLIENT_CAPS)

These are the central pieces that are useful for analyzing MDS
latency/performance problems from the client's perspective.

In the long run, all doutc() calls should be replaced with
tracepoints.  This way, the Ceph filesystem can be traced at any time
(without spamming the kernel log).  Additionally, trace points can be
used in BPF programs (which can even deference the pointer parameters
and extract more values).

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-12-10 11:50:54 +01:00
..
events ceph: add trace points to the MDS client 2025-12-10 11:50:54 +01:00
misc NFSD: filecache: add STATX_DIOALIGN and STATX_DIO_READ_ALIGN support 2025-09-30 16:10:05 -04:00
stages tracing: Add __print_dynamic_array() helper 2024-10-30 17:24:32 +01:00
bpf_probe.h tracepoint: Have tracepoints created with DECLARE_TRACE() have _tp suffix 2025-05-14 11:19:32 -04:00
define_custom_trace.h
define_trace.h tracepoint: Have tracepoints created with DECLARE_TRACE() have _tp suffix 2025-05-14 11:19:32 -04:00
perf.h tracing/perf: Add might_fault check to syscall probes 2024-10-09 17:09:46 -04:00
syscall.h
trace_custom_events.h
trace_events.h tracing/ftrace: Add might_fault check to syscall probes 2024-10-09 17:09:36 -04:00