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[35.229.176.202]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39d98e602d8sm64821a91.3.2026.09.10.09.52.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2026 09:52:38 -0700 (PDT) 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, Kuan-Wei Chiu Subject: [PATCH v2 0/2] lib/sort: Clean up sort_nonatomic() and sort_r_nonatomic() Date: Thu, 10 Sep 2026 16:52:19 +0000 Message-ID: <20260910165222.1186628-1-visitorckw@gmail.com> X-Mailer: git-send-email 2.55.0.1003.g10538fe699-goog Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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. --- 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