From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793664567; b=JY9wQXDxO8kqroR237kgnfGSrtf7c94lUMz516YWElND7zbZ52if2Uojp503L2UIW64y mwtb6U5X+iA34sMOcku8MGQmBMAHTlhdVV9nAZSz266SD9YOsgMYqXOiljwL7t7WAifwF 20u6jAN6FWn4AzU9FcZAddMKNM7AXweQfiNGwFNUsECIjFv5pxSA0LhGhEUM4+JDFalBq VfCJ0y2dZdSIyPUEBqA2c/0wphNOBxZ3iVEMG9B8Pm/1TB8XRLSLYFdROcnEvfDX9bqks AkkhxCNa9RrY+wVaeedGgeGMYWp/sFgj9uSjGfSMPALA6S/oCY3a5WhcDIlkJcU5pNQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793664567; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=Ow3XCvJjCoEA/HO2JqUdHbblgnQnfGKmyr+ULDzjLOc=; b=YsC7QS5FACw1XtZqvlaKRHaWdGC4uxizoREA2aGNHlJXFgCHyfwiHTM+jRosXPtAN0sm Msgp2VAivGH7KGWjoKQ8iyzaoVwgnZhTUCjzEijtz69e4YJOOg7tivQMuV7gk6RAZ5dZZ OCO5zBZK1ckYGJTANChtP5q8KN9fEwUdYYtu6lEGF/Vv3W8Nqk82yrQyWqK/IYLzH7pbO eiob2kCrJ/M3o+MACpnvY9ADQ6iusaxYpNgRQFEGtcJwxj+vYAwuDE7gDQRuIE9z6UkBt Tq2MC0B8d2d+UR+p9L+J6pODdzDmG8t7J85B6cDjpBctDmPC1E+ZISJLbcErchEnLNQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Ej1s3Eni; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 859C1606A324 for ; Tue, 3 Nov 2026 00:09:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Ej1s3Eni Received: by smtp.kernel.org (Postfix) with ESMTPSA id D35831F000C1; Tue, 3 Nov 2026 00:09:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793664567; bh=Ow3XCvJjCoEA/HO2JqUdHbblgnQnfGKmyr+ULDzjLOc=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=Ej1s3Eni9qUZ4VvWYOA1LO0jsYQkDWFtAX8p0xGSBAYwApjWoZSjOenoWpWjg/me5 AXN0xvNcmIlVjIVOsmbJmkVTLcRvtbnET2uIaKhJ3mPU3bNiUJtXiCTSOLx8iTpz4I rDwwgPjEVqv5JKeqrg9e/64bpW0kesCxhCdOdg0jHdw8+hpKsuxdOZEDQ9qhDH/wyn qGUE9El3OkBcrWQJsJnVdNX6rX4dx01NYvhq3XNMjVlV4Zlj5AkQCwAUKQ1QeZqVaJ 0sk1xrt5nn/st1Hn9dLvCSvV0rcWun903vGg/ursoygtEaFv3E4KcS84iyHvKOJ7iq zZKH2Aetp7OUQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v12 08/12] ALSA: pcm: report partial progress under the stream lock Reply-To: sashiko-reviews@lists.linux.dev To: "Joonho Lee" Cc: virtualization@lists.linux.dev, "Michael S. Tsirkin" , "Eugenio Perez" In-Reply-To: <20261103000403.67106-9-mynameisjune111@gmail.com> References: <20261103000403.67106-1-mynameisjune111@gmail.com> <20261103000403.67106-9-mynameisjune111@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 03 Nov 2026 00:09:26 +0000 X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Staged capture can make readable data available before a complete period > has elapsed. Skipping notification leaves a blocked reader asleep, while > using the period-interrupt path for this event can infer a false ring wrap > when the notification is delayed. >=20 > Add snd_pcm_progress_under_stream_lock() to update the hardware pointer > through the non-interrupt path and notify readers and fasync listeners. > It runs under the caller's PCM stream lock and does not tick the PCM time= r. > The driver must release its pointer and trigger locks before calling it. > Existing period notification callers keep their current behavior. >=20 > Atomic and nonatomic synthetic PCM tests reproduced the missing wakeup > and false-wrap alternatives. The new helper delivered 64 final frames and > reported four available frames after delayed partial progress without XRU= N. >=20 > Assisted-by: LLM > Signed-off-by: Joonho Lee Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261103000403.6710= 6-1-mynameisjune111@gmail.com?part=3D8