From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj2-f38.google.com (mail-pj2-f38.google.com [74.125.227.166]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F17434CEE60 for ; Mon, 5 Oct 2026 18:59:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.227.166 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791226751; cv=none; b=V0TM682c1aJFWNuMJKBes1IPaA9fc5xnM+H4uLZ8d1TDQ9YgdzaoQYKAIt6AeIZ/EbZt82sY6ZOFwbsoosCFrpF716rXSoxpJ8F2kt0K7oQXOzO4f6NNF87TLXwqbm0Y3CLZmPvwjEypnA0DkYGdZanmYrySl+lciy9E/foi7do= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791226751; c=relaxed/simple; bh=RH+CnPT5AboZDzkPfzmDDAHIiqyv/a+uYoK+W5T39CY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=X2ANMY2++CCZ+DZb4KT5ehtfXCtGnXBYBRElzLK4DHjoUV/aWrBFXx/a2zgWMhtQeIqZPAo31SJzkx5GVwp74/+TW47RvmhcO047HMpXFT6crsVLYDrzGP3ki0RqnACFXxJVaEnlCrWgyb+GdSwxZh0rSS4wCafn5kuTauPZ4pw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=V/jCv1cQ; arc=none smtp.client-ip=74.125.227.166 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="V/jCv1cQ" Received: by mail-pj2-f38.google.com with SMTP id 98e67ed59e1d1-3a82eab3fb0so508648a91.1 for ; Mon, 05 Oct 2026 11:59:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791226749; x=1791831549; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=sSXi87+ATCOArHRRy46mVukElIuhUGDXLY5gl03Kkf4=; b=V/jCv1cQN58xQVKttsAISPtfQCYACiNg6oK4DnpQk6Rclz7II6zzF91z6uzBgu0yLD SKlW1PU0z2aNgHq1eaUDocCwvwXlLfWK86doxBlqPKjoTMVy46xl4CkUVF6BabXXUd+z QnNiG3G+JHRHGHlS0VNCGHHZjwayXiEjcLFh3Oz9WqBQ+3Phx7vUpPPUMaj7RJLx+VO7 NGe+lYGRP1enmS4WgP96CWZGgD0U2h6bwelvDj7Bl3XK3AmeNe5YATZmN8K9gCOeTizi d/0yKrcDq6kSHyYIO7bY3IbZNnnHJ3CpacMFtnpNKsQqMIK2jQkZvij5LlPv4cxXxF0o cpXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791226749; x=1791831549; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=sSXi87+ATCOArHRRy46mVukElIuhUGDXLY5gl03Kkf4=; b=qX+UCjQYM7xA5pboJvIVNmXEye4cq+RMoVFoYRPQ5Nr3TZYCYp14dm90arK6QWIOfK yMEqi+NwmfWE0tj7BB3vsP74ou+VWRoyuaILoQzuLCOgHqoQuYOBn2zzd1O7+otaniTu sKvf+o1WWuBAjx1OUk2EGHg2us8va/DpjOU61jYSW5MmvV6wG478xuw0SmDBlQwskqfT uAROKAiJd3s+3UvGHHB4ga2IbTqrYYXpr7Cv7zR1sOZm6wGbwybJH/pnVXxPMFnVX9kN HWi+vJ9qLfg8ypkM70gVhk4BJcotVSD62G3V1bcwB4yGzwB1OLzXyLdOBLJjz6/brGAR iLZw== X-Forwarded-Encrypted: i=1; AKwUvBwbGisfn8py69zJ0oBkZvyd1ZFqcHtB5HZJZQzxfFR2qrgvjoJitJd5bX1eRBf1Hkk2zLo=@vger.kernel.org X-Gm-Message-State: AFq9FYLRXekhBt2MxrktIiNf7F9jFFTEMDUSeo1HgjlhTewt8/AInEC2 eDPt18S5v6Gsk9NutEtjawdtWFkFNO/BeBv6+aci9fERJ/qXBrPGDUmq X-Gm-Gg: AYBFou3vnO/r/oTmlGO5fyekAB4va4mWtQTxr1zN5YLyFEIfCmf2Qqbvujw/zmLbjrt HLTSYc3uD0K+GC+I4xhw8XvuRvWjlKQlaQ1qwcPCzadQ0aKWg8ajNBmq+AoueH6DgslsZQOfywj kn29EaFKlqpxFoPuBHJfYWRz6p42a2qmoibW6SHOcDeu8k/Uklpd0g20/xwag8XL3gPdDbLV6mO 2DHSljZMolTn5yNGajvYMkwBDYcw68pQQVYFBIbJvx4n9jhSGgVnyo9IvfG90BNy5bfVbjg7WxJ 9/EA2poI/GdUHwxCBno4P6pxlM+LCMarEPFZXp/eqETDShKMYTbEBV5AGXjFAF9TyfhzZzTRkxV HmeGspoHRVLIkjS1FEKkql9mVNBQO7/K55X4dDUQpF48epMI02Zzn8XdtpgZakFRgct/LjK2vzH FDSyVyiJ+OvbtHXNAvl9DdX1l3kmI+nwFfLCJDiFdVzlooDv8pProxtg8jG7OXywa78qMYWXo= X-Received: by 2002:a17:90b:4b01:b0:3a7:d2b5:2e99 with SMTP id 98e67ed59e1d1-3a7d2b52f9emr3999739a91.20.1791226749036; Mon, 05 Oct 2026 11:59:09 -0700 (PDT) Received: from google.com ([118.150.148.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a853cea0f1sm748786a91.15.2026.10.05.11.59.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Oct 2026 11:59:07 -0700 (PDT) Date: Tue, 6 Oct 2026 02:59:01 +0800 From: Kuan-Wei Chiu 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() Message-ID: References: <20260910165222.1186628-1-visitorckw@gmail.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 >