kernel/linux.git/include/trace/events/io_uring.h, branch v6.12.80

tracing/treewide: Remove second parameter of __assign_str()

2024-05-23T00:14:47+00:00

With the rework of how the __string() handles dynamic strings where it saves off the source string in field in the helper structure[1], the assignment of that value to the trace event field is stored in the helper value and does not need to be passed in again. This means that with: __string(field, mystring) Which use to be assigned with __assign_str(field, mystring), no longer needs the second parameter and it is unused. With this, __assign_str() will now only get a single parameter. There's over 700 users of __assign_str() and because coccinelle does not handle the TRACE_EVENT() macro I ended up using the following sed script: git grep -l __assign_str | while read a ; do sed -e 's/$__assign_str([^,]*[^ ,]$ *,[^;]*/\1)/' $a > /tmp/test-file; mv /tmp/test-file $a; done I then searched for __assign_str() that did not end with ';' as those were multi line assignments that the sed script above would fail to catch. Note, the same updates will need to be done for: __assign_str_len() __assign_rel_str() __assign_rel_str_len() I tested this with both an allmodconfig and an allyesconfig (build only for both). [1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/ Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home Cc: Masami Hiramatsu Cc: Mathieu Desnoyers Cc: Linus Torvalds Cc: Julia Lawall Signed-off-by: Steven Rostedt (Google) Acked-by: Jani Nikula Acked-by: Christian König for the amdgpu parts. Acked-by: Thomas Hellström #for Acked-by: Rafael J. Wysocki # for thermal Acked-by: Takashi Iwai Acked-by: Darrick J. Wong # xfs Tested-by: Guenter Roeck

io_uring: remove 'loops' argument from trace_io_uring_task_work_run()

2024-02-08T20:27:06+00:00

We no longer loop in task_work handling, hence delete the argument from the tracepoint as it's always 1 and hence not very informative. Signed-off-by: Jens Axboe

io_uring: expand main struct io_kiocb flags to 64-bits

2024-02-08T20:27:03+00:00

We're out of space here, and none of the flags are easily reclaimable. Bump it to 64-bits and re-arrange the struct a bit to avoid gaps. Add a specific bitwise type for the request flags, io_request_flags_t. This will help catch violations of casting this value to a smaller type on 32-bit archs, like unsigned int. This creates a hole in the io_kiocb, so move nr_tw up and rsrc_node down to retain needing only cacheline 0 and 1 for non-polled opcodes. No functional changes intended in this patch. Signed-off-by: Jens Axboe

io_uring: rename trace_io_uring_submit_sqe() tracepoint

2023-04-03T13:16:15+00:00

It has nothing to do with the SQE at this point, it's a request submission. While in there, get rid of the 'force_nonblock' argument which is also dead, as we only pass in true. Signed-off-by: Jens Axboe

io_uring: trace local task work run

2022-09-21T16:30:42+00:00

Add tracing for io_run_local_task_work Signed-off-by: Dylan Yudaken Link: https://lore.kernel.org/r/20220830125013.570060-8-dylany@fb.com Signed-off-by: Jens Axboe

io_uring: Add tracepoint for short writes

2022-07-25T00:39:32+00:00

This adds the io_uring_short_write tracepoint to io_uring. A short write is issued if not all pages that are required for a write are in the page cache and the async buffered writes have to return EAGAIN. Signed-off-by: Stefan Roesch Link: https://lore.kernel.org/r/20220616212221.2024518-13-shr@fb.com Signed-off-by: Jens Axboe

io_uring: fix io_uring_cqe_overflow trace format

2022-07-25T00:39:17+00:00

Make the trace format consistent with io_uring_complete for cflags Signed-off-by: Dylan Yudaken Link: https://lore.kernel.org/r/20220630091231.1456789-12-dylany@fb.com Signed-off-by: Jens Axboe

io_uring: add trace event for running task work

2022-07-25T00:39:15+00:00

This is useful for investigating if task_work is batching Signed-off-by: Dylan Yudaken Link: https://lore.kernel.org/r/20220622134028.2013417-8-dylany@fb.com Signed-off-by: Jens Axboe

io_uring: clean up tracing events

2022-07-25T00:39:14+00:00

We have lots of trace events accepting an io_uring request and wanting to print some of its fields like user_data, opcode, flags and so on. However, as trace points were unaware of io_uring structures, we had to pass all the fields as arguments. Teach trace/events/io_uring.h about struct io_kiocb and stop the misery of passing a horde of arguments to trace helpers. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/40ff72f92798114e56d400f2b003beb6cde6ef53.1655384063.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

io_uring: move io_uring_get_opcode out of TP_printk

2022-06-23T14:40:36+00:00

The TP_printk macro's are not supposed to use custom code ([1]) or else tools such as perf cannot use these events. Convert the opcode string representation to use the __string wiring that the event framework provides ([2]). [1]: https://lwn.net/Articles/379903/ [2]: https://lwn.net/Articles/381064/ Fixes: 033b87d24f72 ("io_uring: use the text representation of ops in trace") Signed-off-by: Dylan Yudaken Link: https://lore.kernel.org/r/20220623083743.2648321-1-dylany@fb.com [axboe: fixup spurious removal of sq_thread assignment] Signed-off-by: Jens Axboe