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([2a01:4b00:bd21:4f00:7cc6:d3ca:494:116c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4835dd20519sm85013405e9.15.2026.02.11.07.40.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Feb 2026 07:40:52 -0800 (PST) Message-ID: <8bdb51d2-0935-41ba-bca6-c9d575c7ae99@gmail.com> Date: Wed, 11 Feb 2026 15:40:51 +0000 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 4/5] io_uring/bpf-ops: implement bpf ops registration To: Jens Axboe , io-uring@vger.kernel.org Cc: bpf@vger.kernel.org, Alexei Starovoitov References: <7ca5070830c022493eaf45948e146f418aceb747.1770818588.git.asml.silence@gmail.com> <55db7c09-5bc8-4dda-818d-53130400ee50@kernel.dk> Content-Language: en-US From: Pavel Begunkov In-Reply-To: <55db7c09-5bc8-4dda-818d-53130400ee50@kernel.dk> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2/11/26 15:21, Jens Axboe wrote: > On 2/11/26 7:32 AM, Pavel Begunkov wrote: >> +static void io_eject_bpf(struct io_ring_ctx *ctx) >> +{ >> + struct io_uring_bpf_ops *ops = ctx->bpf_ops; >> + >> + if (!WARN_ON_ONCE(!ops)) >> + return; > > if (WARN_ON_ONCE(!ops)) > return; > > ? Good catch! I even lightly tested it before, but seems like there is a delay before the program is actually destroyed and you could still call the function without crashing. I'll add it to selftests. -- Pavel Begunkov