From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 9E4024A31; Wed, 31 Jul 2024 00:43:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722386589; cv=none; b=KH71xYPzsBIxzgmwNSCXmvSpw2dZO8hgrLK46A/RseSsRZgX+NS0X2ybQSbN2/Dm+ZWlD9AV3/7a/ng0S7zJ+WIDBdbqN77GfZOPfH8/8sxkx0XW8tSBaLnFx/rz/kP2WNHB5Yw4GiCCZKoxG+Y2usTAuKWDKvkV2Np8q8dvcak= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722386589; c=relaxed/simple; bh=0Ucwoq06RuZunJH9ZTsuF1H8BZYdv3fYzTqpVSxm0js=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tr3wDB45+kCW/LjW9qqdoD/qPa/0RDLrvGk12bVhzBBKuFd9IE/IQHDT5A2C1Pw7JzTMKV/m3YZl5BJv1pm2uJpK652FRk1G+hQWTOLR+4O3g+dBXHtLh71+SPg9ThHfY91Kr5JtT8kanP2D2GqpqYb+YdgSeBxJGe+mLyQYAY4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=KXQpUCxQ; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="KXQpUCxQ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=PbApO/TIp5V0FKdRkfodevei4EDfm4ALsJAsgQBECAQ=; b=KXQpUCxQeQh/BBdWhJy+KlHr5X 2IU0R8zcgoaWX3U0jChl1zzFm2lPJR/vOavGb8a17TqNlUNF2v4V6kOlhxpJk5Ae6+6MBmUqbQ7av VJqNnvD+nW9sHB7/jiEaX99/vLNCJS63npVjqClID8z5O/y6ND4e42Tj/VXWRMhg1N4GRoBBRvLDd nXo6TXpFdyh6N0bRI1QsEi4+83HAahArycPqeVdST4adY47escnKNq15X4wcN1Q92oEij7Q13dHOA RR5FmIm9pDH6nbWu+VdWnw2h7312jzj/HZAi45Srj8sUmIicEImgy6naSj9l4ZuFDQC/rKRVGCmt0 owD4J1/w==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98 #2 (Red Hat Linux)) id 1sYxQm-00000000MLz-0Nq3; Wed, 31 Jul 2024 00:43:04 +0000 Date: Wed, 31 Jul 2024 01:43:04 +0100 From: Al Viro To: linux-fsdevel@vger.kernel.org Cc: Linus Torvalds , Christian Brauner , bpf@vger.kernel.org, Amir Goldstein , kvm@vger.kernel.org, cgroups@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCHSET][RFC] struct fd and memory safety Message-ID: <20240731004304.GI5334@ZenIV> References: <20240730050927.GC5334@ZenIV> 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: <20240730050927.GC5334@ZenIV> Sender: Al Viro On Tue, Jul 30, 2024 at 06:09:27AM +0100, Al Viro wrote: > 10a. All calls of fdput_pos() that return a non-empty fdget_pos(), that is. > value are followed by exactly one call of fdput_pos().