From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 613C8388E4F for ; Tue, 16 Jun 2026 11:01:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781607699; cv=none; b=gNn5yrgqaeTS+CKaylb+7fdZ4N5pnJkvgdzNPBaIA2MPtdCDTcsxRyyP/7xUspJ6MAiQg6SLsNxDOGLdc5aYSAMhnMQV0w6j+Z8sxI4bgzRSG73quKCmXYnYr5HB0wFobEvomwPSJtY2tnwSHq7py8Iu+ug3mN5X4AiWVXyNfIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781607699; c=relaxed/simple; bh=hSWIMETETlHUtnWCk/PMdXPfbNopSY4DXQJ5FK4vuDw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=OydI3PFSDCBSHGG3a7ZAWarzu4JmzcxMSOE62m/Mjk/zVlY1QdClyKTrym5RFLV/yoOfj/CbpZysUn2Tmz8setg4pe2bpJw/ilLg/ZhH3ra/qXLEA3DjgZ0nHn976Y6KMS9epwtBtih+R6aZ0wesvktLPVwxQx8Pqkdi+HScp+I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CgZVaWlV; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CgZVaWlV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35DB71F000E9; Tue, 16 Jun 2026 11:01:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781607698; bh=h9JjjslEp2KMjqAny2az8Dvl2pHBSCD6Zh+rTqyKa/U=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=CgZVaWlVB/Dg/GoNPgGqdw3LEaWk8g42LQrEdgPA5XV+Og95TKtU+qKQi5Hmev3ac Gi0KJ7S5aVaTFjZrdcJBc+jB/KUS66he00hTY8AsjujlPh4L3wkDL20Mk5Y+Jx5x4E 8++/hEBy4s6X8xHXLDoDTdqp3Ppucnz8n7ubXIwYD7psTshh9vagQcwgGvCAi4d05/ mBHy1KbEO29AhHX/jOcALOXrLQatnX0LY7+rVLbku+0GQsESd/I13vyeZQp36/y04A sl4ijiwYcj/CU1nE7TLvg63m+jBbrRqSiBjVbdSGWPBh7OitS2Pt/2Dp6A23dQuVNh 9rQPxrBorWpuA== Message-ID: Date: Tue, 16 Jun 2026 13:01:34 +0200 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH 6.18.y 1/2] mptcp: fix missing wakeups in edge scenarios Content-Language: fr To: Sasha Levin , stable@vger.kernel.org Cc: Paolo Abeni , Jakub Kicinski References: <2026061533-ninja-scrabble-539d@gregkh> <20260616001959.2587348-1-sashal@kernel.org> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Sasha, On 16/06/2026 02:19, Sasha Levin wrote: > From: Paolo Abeni > > [ Upstream commit 9d8d28738f24b75616d6ca7a27cb4aed88520343 ] > > The mptcp_recvmsg() can fill MPTCP socket receive queue via > mptcp_move_skbs(), but currently does not try to wakeup any listener, > because the same process is going to check the receive queue soon. > > When multiple threads are reading from the same fd, the above can > cause stall. Add the missing wakeup. > > Fixes: 6771bfd9ee24 ("mptcp: update mptcp ack sequence from work queue") > Cc: stable@vger.kernel.org > Signed-off-by: Paolo Abeni > Reviewed-by: Matthieu Baerts (NGI0) > Signed-off-by: Matthieu Baerts (NGI0) > Link: https://patch.msgid.link/20260602-net-mptcp-misc-fixes-7-1-rc7-v2-1-856831229976@kernel.org > Signed-off-by: Jakub Kicinski > Signed-off-by: Sasha Levin Thank you for this patch. The subject shows "1/2", suggesting a 2nd patch is expected, but I don't see any, and it looks like no 2nd patch is needed here to resolve conflicts. So just to be sure: no patch 2/2 expected, right? Cheers, Matt -- Sponsored by the NGI0 Core fund.