From: Steven Rostedt <rostedt@goodmis.org>
To: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Subject: Re: [PATCH v6 1/4] tracing: Reset last_boot_info if ring buffer is reset
Date: Wed, 4 Feb 2026 20:40:49 -0500 [thread overview]
Message-ID: <20260204204049.0f7dc697@robin> (raw)
In-Reply-To: <176991654703.4025429.9641092475053587709.stgit@mhiramat.tok.corp.google.com>
On Sun, 1 Feb 2026 12:29:07 +0900
"Masami Hiramatsu (Google)" <mhiramat@kernel.org> wrote:
> @@ -8036,6 +8042,7 @@ tracing_snapshot_write(struct file *filp, const char __user *ubuf, size_t cnt,
> tracing_reset_online_cpus(&tr->max_buffer);
> else
> tracing_reset_cpu(&tr->max_buffer, iter->cpu_file);
> + update_last_data_if_empty(tr);
Is this needed? Memory mapped buffers (which the persistent ring buffer
is) do not have snapshot buffers.
-- Steve
> }
> break;
> }
next prev parent reply other threads:[~2026-02-05 1:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-01 3:28 [PATCH v6 0/4] tracing: Remove backup instance after read all Masami Hiramatsu (Google)
2026-02-01 3:29 ` [PATCH v6 1/4] tracing: Reset last_boot_info if ring buffer is reset Masami Hiramatsu (Google)
2026-02-05 1:40 ` Steven Rostedt [this message]
2026-02-06 13:50 ` Masami Hiramatsu
2026-02-11 18:28 ` Steven Rostedt
2026-02-11 18:33 ` Steven Rostedt
2026-02-01 3:29 ` [PATCH v6 2/4] tracing: Make the backup instance non-reusable Masami Hiramatsu (Google)
2026-02-05 2:17 ` Steven Rostedt
2026-02-09 9:08 ` Masami Hiramatsu
2026-02-09 23:42 ` Steven Rostedt
2026-02-10 5:14 ` Masami Hiramatsu
2026-02-11 15:42 ` Steven Rostedt
2026-02-12 4:24 ` Masami Hiramatsu
2026-02-01 3:29 ` [PATCH v6 3/4] tracing: Remove the backup instance automatically after read Masami Hiramatsu (Google)
2026-02-01 3:29 ` [PATCH v6 4/4] tracing/Documentation: Add a section about backup instance Masami Hiramatsu (Google)
2026-02-05 0:41 ` [PATCH v6 0/4] tracing: Remove backup instance after read all Masami Hiramatsu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260204204049.0f7dc697@robin \
--to=rostedt@goodmis.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-trace-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mhiramat@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.