From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) (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 311872ED860 for ; Tue, 2 Jun 2026 10:22:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.48 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780395737; cv=none; b=TXfe1EgSQdoMJU3K1EladfDURcguaK0U+33Jil5ltI7wmyxXqOedSSs1AbvmEBMK6ts8AzX0nNmyXr2zKdy8ySUPljT5nXJGYLxnELEfi2lM/n98eeiugqOBFUW2cCnV8CJiZaTJ2HszXEFdncTZOmaWh5wKWwo1t+Qivm+YvPE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780395737; c=relaxed/simple; bh=HkcSz52xFrrOWauefQzWAJVmuH3sqYf32u3CdB875C4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=nLZ9+yBmMRC91Dki3icqlwjo5/WYNFKAiWOqgCQ7wmBk/MJKlHZ2K/eHD4U+wzgeslzDVN0J1Zq60Q79ONE+s7cribqtQW19RvXfTPZiojDn7p0CzG4kgiKLVt8/6W9ckerEA1IipxAZjefiE0dakvYnL9GKArQ5b41AposxpU4= 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=AOf30IjD; arc=none smtp.client-ip=209.85.128.48 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="AOf30IjD" Received: by mail-wm1-f48.google.com with SMTP id 5b1f17b1804b1-4908b92904fso59009795e9.0 for ; Tue, 02 Jun 2026 03:22:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1780395735; x=1781000535; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=KOPBKAeEqkvF6QzMZmN8YyjoI4Qdf/wizxMTFj8xlE8=; b=AOf30IjD+C5WGXGgXyegaWfVJdaywIhxuiw+dFYHpNA65lnbc2jSiZLfPKUIglcl9y K0rdDendiAVF/Aqr4EaEiL9BbrslhlQcTba8ZRf02hPpPZ5V+G8fMPtlGyRwoLbjU6lk urivsm1TzqbBUYkIvf9wr1RR0neU0X+TSdAvu7MnIm9yNSg91IYHfkPHfPnYm+4KjqZE ms2w/atIGdx+4EKvYGvRI1fpAV5GDBAZS6Wb0X7TK4h3d2a+z1LRUqVWus2rAQg5TtpR c6I2FgbhlatZm4l/eAdCyn91qaGt+kTL/UnDs7jN67p2tGv4xTXfQxi9jKKBi9yFd3yx +SXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780395735; x=1781000535; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=KOPBKAeEqkvF6QzMZmN8YyjoI4Qdf/wizxMTFj8xlE8=; b=iPqycoP8fr6fcebPPJVN9pTwkNrEICrOo5lOjwe6MXlu9Eln1fSEzgesec99gKxGPt epcUjvyHM34xGMLePZS3spycWjW40yGMmZeovUjqb+jUafmW26lFM7ozAfdJbxC71w0+ Ap8seqmdvAzc91K5CmScEHPrbFxGsWSLpJjDAfINY8Fo2GGCQMd8DlcXAIv2YDwb+BO1 h0OVXadnh/IHv4pkmf3JmBzq4v+PzPdk2VEI3qtz3JnvBXy69JvjxJLhcCfLxQNW8vX2 Fi2Ch8LyfZ/TL8rQxzP6a26ccDeqs+Anm1voDk0eO9/qBeiAF5RO2CVSX4G89/eKU7XW 8p2Q== X-Gm-Message-State: AOJu0YxSGYwPHfQAbfR7Su3K5XnPl/vlV/snR1bXS7laHOyEYLfv0FbX In0HAGJJ4fmX/gpEabP0vz3Wr54yh9+yEgOHRdSKRycrYI2C+cCHzQOGMFBY+w== X-Gm-Gg: Acq92OErmhPPpKojXQDJ6arJfrCv5HtYSwZ821VMQRPhnp35+S3zK2cOKEQ1CHUtiSy Fk1r2jre6jy++xzCqpCfSvQqPbq6EZDnzCAk8zVYYJ1DpUt+SoYXgl6XfngNyoPPZzVOvsIGHSY uVuDYJcN+1gxrhvz3h6FVLF922IndZ5YjlUhiee5XSUVjfEfrpV5J+FMJGjEAw7xh8RLG26c2jW MWSDdbm5LZHKdQU3AgEjXUbd5oBpQjOeBNol2mQt7/wejaKwZ/P/r7J5idOuzX+9O2E1fq8dsPn ZwoJ/mQxxJrT4XOG844wxRP8o/545GVu7Ukur0iVOREuH1TSQD23xhrGNPvv/+CtGYdhImbzwsd L1fgnP2ouQqe24RIuzy/QFGfKCQzZDcripX5r05UUAVVQvpjZTz/0Bu4fDjSrWOUS/C3IH1zCI7 rlg6+8bg3OV0X34H4/AQMpVbzTGW1u4gYEqI0vDnAd162ygndAGklbQn6pWk7tkfMGiZ6QKcvym j8ZutsKh5FVBUjwL3KvfdF1b7k18jrS0xCB0hZK X-Received: by 2002:a05:600c:34cf:b0:490:6869:46d2 with SMTP id 5b1f17b1804b1-490a28d3b0fmr273487255e9.0.1780395734590; Tue, 02 Jun 2026 03:22:14 -0700 (PDT) Received: from 127.mynet ([2a01:4b00:bd21:4f00:7cc6:d3ca:494:116c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-490b0e24069sm59123105e9.8.2026.06.02.03.22.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jun 2026 03:22:14 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [RFC 0/2] add timeouts for io_uring bpf-loop Date: Tue, 2 Jun 2026 11:22:04 +0100 Message-ID: X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The BPF ops should be able to set timeout while waiting for CQEs, this series implements one approach. I'm keeping it as an RFC as I'm pondering at a slightly different and hopefully more performant ways of achieving it. Pavel Begunkov (2): io_uring/loop: add a structure for loop state io_uring/loop: introduce wait timeouts io_uring/bpf-ops.c | 6 ++++++ io_uring/loop.c | 37 +++++++++++++++++++++++++++++++------ io_uring/loop.h | 14 ++++++++++++++ 3 files changed, 51 insertions(+), 6 deletions(-) -- 2.54.0