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Thu, 23 Apr 2026 17:55:17 -0700 (PDT) Received: from localhost ([2a03:2880:10ff:1::]) by smtp.gmail.com with ESMTPSA id 5614622812f47-479a02097b6sm14515077b6e.14.2026.04.23.17.55.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Apr 2026 17:55:17 -0700 (PDT) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Thu, 23 Apr 2026 17:55:16 -0700 Message-Id: From: "Alexei Starovoitov" To: "Amery Hung" , Cc: , , , , , , , Subject: Re: [PATCH bpf-next v3 0/9] Refactor verifier object relationship tracking X-Mailer: aerc References: <20260421221016.2967924-1-ameryhung@gmail.com> In-Reply-To: <20260421221016.2967924-1-ameryhung@gmail.com> On Tue Apr 21, 2026 at 3:10 PM PDT, Amery Hung wrote: > > (3) Referenced dynptr with referenced parent: > > file (1,1,0) > ^ ^ > bpf_dynptr_from_file | +-------------------------------+ > | bpf_dynptr_clone(A, C) | > dynptr A (2,3,1) dynptr C (4,3,1) > ^ ^ > | | > dynptr A and C have the same lifetime If I understand the proposal correctly above should be: file (1,0,0) ^ bpf_dynptr_from_file +-------------------------------+ ref_obj_id will be inited bpf_dynptr_clone() as 3 into A and C. but original file->ref_obj_id will be zero. ?