From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 A5494EBB for ; Sat, 11 Nov 2023 00:27:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=pobox.com header.i=@pobox.com header.b="NhvZowLy" Received: from pb-smtp20.pobox.com (pb-smtp20.pobox.com [173.228.157.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5408C420B for ; Fri, 10 Nov 2023 16:27:49 -0800 (PST) Received: from pb-smtp20.pobox.com (unknown [127.0.0.1]) by pb-smtp20.pobox.com (Postfix) with ESMTP id D83A42B483; Fri, 10 Nov 2023 19:27:48 -0500 (EST) (envelope-from junio@pobox.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=pobox.com; h=from:to:cc :subject:in-reply-to:references:date:message-id:mime-version :content-type; s=sasl; bh=QYwQgS6pYMp2A3ZLz2Uc0bO604LduO0Ik/dio5 fJ5KI=; b=NhvZowLyAFjdCpJiSjUZgASRWsxjUA+HhhIMCISywLX0MSXwOsVNko D14RzFMU+DuOVrrCsLeVObENVCMHZ9BWMUn1bEnOeWYIP2ibkN69xgDXBNwpjtP8 QjiG68m2OHQTYJdolRf8DFEjJ6BcmPCZkHOMapkjpvJvRM4zkwch0= Received: from pb-smtp20.sea.icgroup.com (unknown [127.0.0.1]) by pb-smtp20.pobox.com (Postfix) with ESMTP id D05AB2B482; Fri, 10 Nov 2023 19:27:48 -0500 (EST) (envelope-from junio@pobox.com) Received: from pobox.com (unknown [34.125.67.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp20.pobox.com (Postfix) with ESMTPSA id 6E0EC2B47B; Fri, 10 Nov 2023 19:27:44 -0500 (EST) (envelope-from junio@pobox.com) From: Junio C Hamano To: Elijah Newren Cc: Taylor Blau , git@vger.kernel.org, "Eric W. Biederman" , Jeff King , Patrick Steinhardt Subject: Re: [PATCH v5 5/5] builtin/merge-tree.c: implement support for `--write-pack` In-Reply-To: (Elijah Newren's message of "Fri, 10 Nov 2023 15:51:18 -0800") References: <3595db76a525fcebc3c896e231246704b044310c.1698101088.git.me@ttaylorr.com> Date: Sat, 11 Nov 2023 09:27:42 +0900 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-Pobox-Relay-ID: 226D7052-8029-11EE-947C-F515D2CDFF5E-77302942!pb-smtp20.pobox.com Elijah Newren writes: > I believe the above is built on an assumption that any objects written > will not need to be read until after the merge is completed. And we > might have a nesting issue too... > ... > This is unsafe; the object may need to be read later within the same > merge. Thanks for a good analysis. I agree.