From: Steven Rostedt <rostedt@goodmis.org>
To: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org, hannes@cmpxchg.org,
akpm@linux-foundation.org, linux-clk@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-input@vger.kernel.org,
roman.gushchin@linux.dev
Subject: Re: [PATCH v2 1/8] lib/printbuf: New data structure for heap-allocated strings
Date: Fri, 22 Apr 2022 11:37:36 -0400 [thread overview]
Message-ID: <20220422113736.460058cc@gandalf.local.home> (raw)
In-Reply-To: <YmI/v35IvxhOZpXJ@moria.home.lan>
On Fri, 22 Apr 2022 01:40:15 -0400
Kent Overstreet <kent.overstreet@gmail.com> wrote:
> So I'm honestly not super eager to start modifying tricky arch code that I can't
> test, and digging into what looked like non trivial interactions between the way
> the traceing code using seq_buf (naturally, given that's where it originates).
Yes, seq_buf came from the tracing system but was to be used in a more
broader way. I had originally pushed trace_seq into the lib directory, but
Andrew Morton said it was too specific to tracing. Thus, I gutted the
generic parts out of it and created seq_buf, which looks to be something
that you could use. I had patches to convert seq_file to it, but ran out of
time. I probably can pull them out of the closet and start that again.
>
> Now yes, I _could_ do a wholesale conversion of seq_buf to printbuf and delete
> that code, but doing that job right, to be confident that I'm not introducing
> bugs, is going to take more time than I really want to invest right now. I
> really don't like to play fast and loose with that stuff.
I would be happy to work with you to convert to seq_buf. If there's
something missing from it, I can help you change it so that it doesn't
cause any regressions with the tracing subsystem.
This is how open source programming is suppose to work ;-)
-- Steve
next prev parent reply other threads:[~2022-04-22 15:40 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-21 23:48 [PATCH 0/4] Printbufs & shrinker OOM reporting Kent Overstreet
2022-04-21 23:48 ` [PATCH 1/4] lib/printbuf: New data structure for heap-allocated strings Kent Overstreet
2022-04-21 23:48 ` [PATCH 2/4] mm: Add a .to_text() method for shrinkers Kent Overstreet
2022-04-22 12:21 ` Michal Hocko
2022-04-21 23:48 ` [PATCH 3/4] mm: Centralize & improve oom reporting in show_mem.c Kent Overstreet
2022-04-21 23:48 ` [PATCH 4/4] bcachefs: shrinker.to_text() methods Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 0/8] Printbufs & improved shrinker debugging Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 1/8] lib/printbuf: New data structure for heap-allocated strings Kent Overstreet
2022-04-22 4:20 ` Christoph Hellwig
2022-04-22 5:14 ` Kent Overstreet
2022-04-22 5:22 ` Christoph Hellwig
2022-04-22 5:40 ` Kent Overstreet
2022-04-22 5:52 ` Christoph Hellwig
2022-04-22 6:06 ` Kent Overstreet
2022-04-22 6:11 ` Christoph Hellwig
2022-04-22 6:18 ` Kent Overstreet
2022-04-22 15:37 ` Steven Rostedt [this message]
2022-04-22 19:30 ` Kent Overstreet
2022-04-22 19:39 ` Steven Rostedt
2022-04-22 20:30 ` Kent Overstreet
2022-04-22 20:47 ` Steven Rostedt
2022-04-22 21:51 ` Kent Overstreet
2022-04-22 22:20 ` Steven Rostedt
2022-04-22 20:03 ` James Bottomley
2022-04-22 21:13 ` Kent Overstreet
2022-04-23 14:16 ` Rust and Kernel Vendoring [Was Re: [PATCH v2 1/8] lib/printbuf: New data structure for heap-allocated strings] James Bottomley
2022-04-24 20:36 ` Kent Overstreet
2022-04-26 2:22 ` James Bottomley
2022-04-24 23:46 ` [PATCH v2 1/8] lib/printbuf: New data structure for heap-allocated strings Joe Perches
2022-04-25 0:45 ` Kent Overstreet
2022-04-25 2:44 ` Matthew Wilcox
2022-04-25 4:19 ` Kent Overstreet
2022-04-25 4:48 ` Joe Perches
2022-04-25 4:59 ` Kent Overstreet
2022-04-25 5:00 ` Joe Perches
2022-04-25 5:56 ` Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 2/8] Input/joystick/analog: Convert from seq_buf -> printbuf Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 3/8] mm/memcontrol.c: Convert to printbuf Kent Overstreet
2022-04-22 12:28 ` Michal Hocko
2022-04-21 23:48 ` [PATCH v2 4/8] clk: tegra: bpmp: " Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 5/8] mm: Add a .to_text() method for shrinkers Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 6/8] mm: Count requests to free & nr freed per shrinker Kent Overstreet
2022-04-21 23:48 ` [PATCH v2 7/8] mm: Move lib/show_mem.c to mm/ Kent Overstreet
2022-04-22 12:32 ` Michal Hocko
2022-04-21 23:48 ` [PATCH v2 8/8] mm: Centralize & improve oom reporting in show_mem.c Kent Overstreet
2022-04-22 12:58 ` Michal Hocko
2022-04-22 15:09 ` Roman Gushchin
2022-04-22 23:48 ` Kent Overstreet
2022-04-23 0:27 ` Roman Gushchin
2022-04-23 0:46 ` Kent Overstreet
2022-04-23 1:25 ` Roman Gushchin
2022-04-23 11:48 ` Tetsuo Handa
2022-04-25 9:28 ` Michal Hocko
2022-04-25 15:28 ` Kent Overstreet
2022-04-26 7:17 ` Michal Hocko
2022-04-26 7:26 ` Kent Overstreet
2022-04-26 7:40 ` Michal Hocko
2022-04-30 4:00 ` [PATCH 0/4] Printbufs & shrinker OOM reporting Dave Young
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