From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-171.mta0.migadu.com (out-171.mta0.migadu.com [91.218.175.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A1F081F8677 for ; Tue, 7 Oct 2025 01:23:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759800212; cv=none; b=doFMOmutOoT2Y0Snos5UdOYhtQa6GbqcnNHYWPy5Hf2ygamXtJNvEpJlrnkb+Fbr/wsCVuVOLNt7XXO+JLEVVEuYOKVlhQ4xy/vhg3hCZbAd/q9dTQDwA1eNJTdCm6YsfORbHTqeKALqTv2TD/hEReXNQEeue0XzjktgdZr0T7A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759800212; c=relaxed/simple; bh=Zkg/4/M1W90opEFaeUqTox6cu1LMdIBOwiPvGzQMLZs=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=U2wsWzy3ZYTOv4F0G/w+Tp4fgxmbY0mCq6JGcdSjuJU8JcyJQe96mTnLnuC5tLy6qpHI2yalLjyXcqElQQVjc1XB+JC8hI7/XPC5DzPWU1ioxa/SBE2qHOM4B/UG8iqd7mPGQu5dldhi85hg6jCRDwVLwEkuX7FK+SthuPoqzBo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=pmHTqhIE; arc=none smtp.client-ip=91.218.175.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="pmHTqhIE" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1759800198; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=13Tbayb7LRIEib3J/XQk5H3VZSA57m10o5ojkPGrK3o=; b=pmHTqhIEGN3RBY0xaKXnEMnzDn+4FR6eZxGeDbWQZsJQCSBpyEgFtNVmktSdMmSG32xqD5 dlLKCjv5QcAhlX4tCf8v5RNVwd9TOmabzc5TnfkxrXONxgk+F8HvjMQOyIpm89lgAWiVm0 PysZy4YQ4N2oTlWsgJG7Vi5hofPOUi4= From: KaFai Wan To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, jolsa@kernel.org, shuah@kernel.org, kafai.wan@linux.dev, toke@redhat.com, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH bpf v2 0/2] bpf: Avoid RCU context warning when unpinning htab with internal structs Date: Tue, 7 Oct 2025 09:22:32 +0800 Message-ID: <20251007012235.755853-1-kafai.wan@linux.dev> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT This small patchset is about avoid RCU context warning when unpinning htab with internal structs (timer, workqueue, or task_work). v2: - rename bpf_free_inode() to bpf_destroy_inode() (Andrii) v1: https://lore.kernel.org/all/20251003084528.502518-1-kafai.wan@linux.dev/ --- KaFai Wan (2): bpf: Avoid RCU context warning when unpinning htab with internal structs selftests/bpf: Add test for unpinning htab with internal timer struct kernel/bpf/inode.c | 4 +- .../selftests/bpf/prog_tests/pinning_htab.c | 37 +++++++++++++++++++ .../selftests/bpf/progs/test_pinning_htab.c | 25 +++++++++++++ 3 files changed, 64 insertions(+), 2 deletions(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/pinning_htab.c create mode 100644 tools/testing/selftests/bpf/progs/test_pinning_htab.c -- 2.43.0