From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:33029 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932474AbcCMLdd (ORCPT ); Sun, 13 Mar 2016 07:33:33 -0400 From: NeilBrown To: Qu Wenruo , Qu Wenruo , dsterba@suse.cz, linux-btrfs@vger.kernel.org, clm@fb.com, Wang Xiaoguang Date: Sun, 13 Mar 2016 22:33:22 +1100 Subject: Re: [PATCH v7 01/20] btrfs: dedup: Introduce dedup framework and its header In-Reply-To: <56E4F7AB.4010608@cn.fujitsu.com> References: <1455774178-3595-1-git-send-email-quwenruo@cn.fujitsu.com> <1455774178-3595-2-git-send-email-quwenruo@cn.fujitsu.com> <87io0vjq9x.fsf@notabene.neil.brown.name> <56E0C668.4020406@cn.fujitsu.com> <20160311114305.GQ18908@twin.jikos.cz> <56E3D070.3020005@gmx.com> <56E4F7AB.4010608@cn.fujitsu.com> Message-ID: <87egbeipdp.fsf@notabene.neil.brown.name> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Sender: linux-btrfs-owner@vger.kernel.org List-ID: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, Mar 13 2016, Qu Wenruo wrote: > Qu Wenruo wrote on 2016/03/12 16:16 +0800: >> >> >> On 03/11/2016 07:43 PM, David Sterba wrote: >>> On Thu, Mar 10, 2016 at 08:57:12AM +0800, Qu Wenruo wrote: >>>>> The ioctl FIDEDUPERANGE and the tool duperemove both use "dupe". >>>>> It would be nice if we could be consistent and all use the same >>>>> abbreviation. >>>> >>>> Yes, current kernel VFS level offline dedup uses the name "dedupe". >>>> But on the other hand, ZFS uses the name "dedup" for their online dedu= p. >>>> >>>> And personally speaking, I'd like some difference to distinguish inline >>>> dedup and offline dedup. >>>> In that case, the extra "e" seems somewhat useful. >>>> With "e", it's intended for offline use. Without "e", it's intended for >>>> online use. >>> >>> Such difference is very subtle and I think we should stick to just one >>> spelling, which shall be 'dedupe'. >> >> OK, I'll change them to 'dedupe' in next bug fix version. >> >> Thanks, >> Qu >> >> > BTW, I am always interested in, why de-duplication can be shorted as=20 > 'dedupe'. The "u" in "duplicate" is pronounced as a long vowel sound, almost like d-you-plicate. Normal pronunciation rules for English indicate that "dup" should be pronounced with a short vowel sound, like "cup". So "dup" sounds wrong. To make a vowel long you can add an 'e' at the end of a word. So: tub or cub have a short "u" tube or cube have a long "u". by analogy, "dupe" has a long "u" and so sounds like the first syllable of "duplicate". NeilBrown > > I didn't see any 'e' in the whole word "DUPlication". > Or it's an abbreviation of "DUPlicatE" instead of "DUPlication"? > > Thanks, > Qu > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJW5VACAAoJEDnsnt1WYoG5DrEP/355asuAKoZq+YPZ8tkcIKuk FQ5W6X5RIkOHbg3Sb6MgyuTvazM0UDzXK/QMwWz5MsjOsl97bO8bagK8SvwObext 1glyryXZGYLO1ywzyIg7+02JoI1J/uiBEPbHfEDLjNlP8xg961e121nVFaw+8yrf 6ntLIXmQKrmM1eNXwRmBO7dFtSd3CJu0cYhlzD39JTm5oKeiyyaCat0v4NA+Rua7 ieIESCIlsLbpXTmYgf+snZO2MbY/ILm3cytlSm/AWDjqvSqtcgt9/3vbn69v/KLQ 9INjcOeazVwTGk7ttczIZjdy4cZzrtLLOtsPq4A0krpbrMmlGx8tKCS8w3xUDo01 zaUIND0OrUxiqjmkGFGZXAXNXTm68C6NgsTTOgVF3WqAV4RptdnyftKrsBZ8wX/L EWMNua2UcsF7ZoIfv1YHG3BrD9Mf9uvTXru5Af+2OMYhnaYIVrzOd8fip9ZtC9oX 30nEbjm7CF3xNl37QplxZREKYtKp9WXcmh788gGA9tLCQL4XiNw8R0s/armijyWI gkaFJEFBQz+/q3rhQ8/ia5a+Nijc1GiwE7sGYpC8B9T7Txe7s8uR9fK7SE15nZDC wrW2k7OE4hNNqQkqoHccKsGR9xGrP1gIOq8NVKWd9O7mdqpmIn6Re+Sy0cK6SSj4 7pK9fH/4CNUUCwweVZ8g =9XpN -----END PGP SIGNATURE----- --=-=-=--