From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <055f6bc9f00c19e6b8a81c434408e6e3@brasstown.quanstro.net> Date: Mon, 9 Jun 2014 09:23:51 +0100 Message-ID: From: Charles Forsyth To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=f46d044282de5d2a6604fb62eef1 Subject: Re: [9fans] duppage Topicbox-Message-UUID: f8b67d92-ead8-11e9-9d60-3106f5b1d025 --f46d044282de5d2a6604fb62eef1 Content-Type: text/plain; charset=UTF-8 On 8 June 2014 19:37, Charles Forsyth wrote: > On 8 June 2014 19:15, erik quanstrom wrote: > >> i think it is in the image cache, but .ref >1. > > > but in that case it will still not pio, but make a local writable copy. in fact ref > 1 is the copy-on-write case and in a sense the usual one, where the copy is needed. --f46d044282de5d2a6604fb62eef1 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

= On 8 June 2014 19:37, Charles Forsyth <charles.forsyth@gmail.com> wrote:
O= n 8 June 2014 19:15, erik quanstrom <quanstro@quanstro.net> wrote:
i think it is in the i= mage cache, but .ref >1.

but in that case it= will still not pio, but make a local writable copy.

in fact ref > 1 is the copy-on-write case and in a sense the u= sual one, where the copy is needed.
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