On Tue, 22 May 2001, Linus Torvalds wrote: > > On Tue, 22 May 2001, Andreas Dilger wrote: Actually, the LVM snapshot > interface has (optional) hooks into the filesystem to ensure that it > is consistent at the time the snapshot is created. But I think that LVM is implemented "the wrong way around". File system journal recovery can corrupt a snapshot, because it copies data that needs to be preserved in a snapshot. During journal replay such data may be copied again, but the source can have new data already. Most LVM snapshot systems write the new data in the separate volume and don't copy the old data that eliminates this problem (and also eliminates the copy of data but introduces data copy when a snapshot is removed). - Peter - - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Re: Why side-effects on open(2) are evil. (was Re... Alexander Viro
- Re: Why side-effects on open(2) are evil. (wa... Linus Torvalds
- Re: Why side-effects on open(2) are evil.... Jeff Garzik
- Re: Why side-effects on open(2) are evil.... Jeff Garzik
- Re: Why side-effects on open(2) are ... Oliver Xymoron
- Re: Why side-effects on open(2) are ... Andreas Dilger
- Re: Why side-effects on open(2) ... Malcolm Beattie
- Re: Why side-effects on open(2) ... Andreas Dilger
- Re: Why side-effects on open(2) are evil.... Andreas Dilger
- Re: Why side-effects on open(2) are ... Linus Torvalds
- Re: Why side-effects on open(2) ... Peter J. Braam
- Re: Why side-effects on open(2) ... Andreas Dilger
- Re: Why side-effects on open(2) ... Peter J. Braam
- Re: Why side-effects on open(2) ... Daniel Phillips
- Re: Why side-effects on open(2) ... Hans Reiser
- Re: Why side-effects on open(2) ... Daniel Phillips
- Re: [reiserfs-list] Re: Why side... Hans Reiser
- Re: Why side-effects on open(2) are evil. (was Re: [R... Pavel Machek
- Re: [RFD w/info-PATCH] device arguments from lookup, parti... Linus Torvalds
- Re: [RFD w/info-PATCH] device arguments from lookup, parti... Daniel Phillips
- Re: [RFD w/info-PATCH] device arguments from lookup, parti... Alexander Viro