From: Kuan-Wei Chiu <visitorckw@gmail.com>
To: song@kernel.org, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, eddyz87@gmail.com, memxor@gmail.com,
kpsingh@kernel.org, matt@bobrowski.net, rostedt@goodmis.org,
mhiramat@kernel.org, akpm@linux-foundation.org
Cc: jolsa@kernel.org, ihor.solodrai@linux.dev, martin.lau@linux.dev,
yonghong.song@linux.dev, emil@etsalapatis.com,
mathieu.desnoyers@efficios.com, hch@infradead.org,
jserv@ccns.ncku.edu.tw, eleanor15x@gmail.com,
marscheng@google.com, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org
Subject: Re: [PATCH v2 0/2] lib/sort: Clean up sort_nonatomic() and sort_r_nonatomic()
Date: Tue, 6 Oct 2026 02:59:01 +0800 [thread overview]
Message-ID: <asPzdeas0ZP2Oeis@google.com> (raw)
In-Reply-To: <20260910165222.1186628-1-visitorckw@gmail.com>
On Thu, Sep 10, 2026 at 04:52:19PM +0000, Kuan-Wei Chiu wrote:
> kernel/trace/bpf_trace.c is the sole remaining user of
> sort_r_nonatomic(). Switch check_dup_ids() to sort_r() to match
> bpf_kprobe_multi_link_attach() in the same file, which has safely
> used sort_r() under the same limit (1U << 20) for 4 years.
>
> With no users left in the tree, remove the unused sort_nonatomic() and
> sort_r_nonatomic() APIs. This drops the __sort_r() wrapper and
> eliminates the may_schedule branch and cond_resched() from the inner
> sorting loop.
Anything else I need to do for this patchset to land?
Regards,
Kuan-Wei
> ---
> Changes in v2:
> - Drop the already accepted arm-smmu-v3 patch.
> - Convert bpf_trace.c to sort_r() instead.
>
> Kuan-Wei Chiu (2):
> bpf: Replace sort_r_nonatomic() with sort_r() in check_dup_ids()
> Revert "lib/sort.c: add _nonatomic() variants with cond_resched()"
>
> include/linux/sort.h | 11 ----
> kernel/trace/bpf_trace.c | 2 +-
> lib/sort.c | 110 +++++++++++----------------------------
> 3 files changed, 32 insertions(+), 91 deletions(-)
>
> --
> 2.55.0.1003.g10538fe699-goog
>
prev parent reply other threads:[~2026-10-05 18:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-10 16:52 [PATCH v2 0/2] lib/sort: Clean up sort_nonatomic() and sort_r_nonatomic() Kuan-Wei Chiu
2026-09-10 16:52 ` [PATCH v2 1/2] bpf: Replace sort_r_nonatomic() with sort_r() in check_dup_ids() Kuan-Wei Chiu
2026-09-11 8:36 ` Jiri Olsa
2026-09-10 16:52 ` [PATCH v2 2/2] Revert "lib/sort.c: add _nonatomic() variants with cond_resched()" Kuan-Wei Chiu
2026-10-05 18:59 ` Kuan-Wei Chiu [this message]
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