From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Kuzmin Subject: Re: snapshot-removal - timeline ? Date: Wed, 5 Aug 2009 22:28:31 +0400 Message-ID: <2a31deca0908051128r48cdfd62t2d0fe40c4a9b1a05@mail.gmail.com> References: <1552F85577A149D68B0BFF2A44E0FF0A@bui.materna.com> <20090803130412.GB3570@think> <10F3F7E4-276B-49C3-B944-61320D634C93@karlsbakk.net> <20090803161800.GB5492@think> <7EC11C2E-889E-42A4-80D8-EA7E80F4963D@karlsbakk.net> <20090804183307.GG5693@think> <5D3C1A84-7A56-48CC-9C78-EDC582ED6B54@karlsbakk.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: linux-btrfs Return-path: In-Reply-To: <5D3C1A84-7A56-48CC-9C78-EDC582ED6B54@karlsbakk.net> List-ID: On Wed, Aug 5, 2009 at 3:18 PM, Roy Sigurd Karlsbakk wrote: > > On 4. aug.. 2009, at 20.33, Chris Mason wrote: > >>> It's strange that such a small thing should be delayed so much. If >>> snapshot removal was working, I'm quite sure we might get more user= s >>> and thereby more stable code faster. >> >> It's a small feature but it gets deep into the difficult parts of th= e >> dentry cache to do it right. =A0So, it definitely isn't easy. > > > I'd say it's a pretty elemetary feature to be able to remove somethin= g you have created. Snapshots are somewhat counter-intuitive in many respects: for instance, one snapshot-capable file-system performs writes to a dataset with snapshots _faster_ than to the same dataset w/o snapshots. Snapshot removal is no exception - it's a bit more complex than one would think. Regards, Andrey > I know, you can remove the files and so on, but still, having a bunch= of old and empty > snapshots lying around is no good. > > roy > -- > Roy Sigurd Karlsbakk > (+47) 97542685 > roy@karlsbakk.net > http://blogg.karlsbakk.net/ > -- > I all pedagogikk er det essensielt at pensum presenteres intelligibel= t. Det er et element=E6rt imperativ for alle pedagoger =E5 unng=E5 ekse= ssiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfell= er eksisterer adekvate og relevante synonymer p=E5 norsk. > > -- > 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 =A0http://vger.kernel.org/majordomo-info.html -- 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