From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 BE245389118 for ; Sat, 17 Oct 2026 16:10:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792253415; cv=none; b=MmB9o3mZsBw+OUh/dr2Evf+SlLchl9fv0iVUgqRkHUJ7pjAOHoaIoyioZcaErXHpkGwwSbZFTgp5ZNIkW8gjbWVDg68z3y1Jh+bMFvDZ9BZsHd9gvGCBpCrZRazRNF+0pIjHlTuGoxZSpDLgNw+JVb8AcGL0aRRx4lo4MeMugUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792253415; c=relaxed/simple; bh=CBJIMtV+q8fJ/U/jmSoMIwuQ7z8eMt8j3oy5XGf/Uj0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FgQApV/ndeS9NtBVByHPuJoZo5EdH2N3STZBFRcpM5OwVsfcKsIhaNXZ5auSDh5Yd0u6/Pba+UlpQ7Tppqq4hOsQg8hHEdxc6b2XDyGlt1I6mqKJTly8D0/6w4TD0tzfmnmNGfJDLG0gj3RaGO6T5smTtHVBdta1oKdpq0iuhiE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=MJs17Xvv; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="MJs17Xvv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1792253412; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=CBJIMtV+q8fJ/U/jmSoMIwuQ7z8eMt8j3oy5XGf/Uj0=; b=MJs17Xvv+TV/j2+UjT5t32AysZWPlp1BJhflv9rCrxuRF+d905vbJrC+3+nJAP18RK3zD8 g/sMNIpfHiGZwHR7MBuFg4b6VwkM8GN4PcyMB0O9P0BEOzp/OpQmFnsxYTNcraBdnpjQ1i +7QFudguGXJXqKb1ujzF/gXYljfiUls= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-308-xh8a3FtMObiu6ianXQtmGg-1; Sat, 17 Oct 2026 16:10:08 +0000 X-MC-Unique: xh8a3FtMObiu6ianXQtmGg-1 X-Mimecast-MFC-AGG-ID: xh8a3FtMObiu6ianXQtmGg_1792253407 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9D2661956042; Sat, 17 Oct 2026 16:10:06 +0000 (UTC) Received: from onestero-thinkpadp1gen7.tpbc.csb (headnet04.pony-001.prod.iad2.dc.redhat.com [10.2.32.116]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id 595BE195608A; Sat, 17 Oct 2026 16:10:03 +0000 (UTC) Received: by onestero-thinkpadp1gen7.tpbc.csb (nbSMTP-1.00) for uid 13628 oleg@redhat.com; Sat, 17 Oct 2026 18:10:06 +0200 (CEST) Date: Sat, 17 Oct 2026 18:10:02 +0200 From: Oleg Nesterov To: Christian Brauner , David Laight , Jeff Layton , Mingyu Wang <25181214217@stu.xidian.edu.cn> Cc: alex.aring@gmail.com, jack@suse.cz, viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/1] add pid::tasks_lock to fix send_sigio() and send_sigurg() Message-ID: References: Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 On 10/17, Oleg Nesterov wrote: > > Not for inclusion yet, just RFC. In particular, I'd like to have > a review from sashiko, I am sure I missed something ;) https://sashiko.dev/#/patchset/atOY-5ZjqVTQw2JE%40redhat.com Indeed I missed something obvious. I forgot that attach_pid() is called under siglock. So this change needs more work. Thanks Sashiko. Oleg.