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 920F5382F1E for ; Sat, 17 Oct 2026 16:10:15 +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=1792253416; cv=none; b=P6qqDR1H8hd+MLVSONLIRqayHMw/jSrlqzkSXZx+sqSJ7mQpz7iWI7LlUbJJUSCoxf6DihGXRR1IaOUp5xHItiVacvzgELzK9bq8NCAHdkWq9LwQnW0JZ3pnHCVufzzaFiwaxQ1rydDqCV0ywMSzGfJEf1lBIvHHntkB6akcsjE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792253416; 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=iVr/rv3YGqcHyUkqAjE0X5/rtW3edzvxynCviQt77f2qKGuZSZegRfBCJt56CV1h0d3SXQeuUM8KzZ2oqf4S7lOtSBoysJbznh4VNKL46S13f5/642YPfFU6pnIo3+aMNPx9pju3M9YHmSxw+Z3ONa82QlsvPAQLzRoRpEv9Qok= 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=CRvX+PQV; 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="CRvX+PQV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1792253414; 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=CRvX+PQVTNAkOXPZVXQLBDhbCGl8y2Zn/wbFz0hIAF3U5Qfq0E0IqV+Ha/UVRisKEQQlsh vEbuElbe/QUbPyRoTn2RvYJkwHrLSB90rYItJsF238prkCF/8lz8F0JJLkqhGAHRRViZNu raPHw3MaoBD7w5LDY3gr9QQS1a99UEM= 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-kernel@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.