> -----Original Message----- > From: Kent Overstreet [mailto:koverstreet@xxxxxxxxxx] > Sent: February 07, 2012 10:46 PM > To: Loke, Chetan > Cc: lsf-pc@xxxxxxxxxxxxxxxxxxxxxxxxxx; linux-scsi@xxxxxxxxxxxxxxx; > linux-fsdevel@xxxxxxxxxxxxxxx; dedekind@xxxxxxxxxxxxx > Subject: Re: [ATTEND] > > On Tue, Feb 7, 2012 at 3:31 PM, Loke, Chetan <Chetan.Loke@xxxxxxxxxxxx> > wrote: > > I came across UBIFS when I was looking to implement just a backing > > device. So I'm trying to understand if you looked at UBIFS and if parts > > of that could have been used(or if they are used already?). Because in > > the end we need to create an erase-aware FS(without the usual > > defrag/syscall/etc support) and manage that in conjunction with > > block-layer. Agreed that UBIFS is a generic FS. But we also need to > > worry about erase-cycles/counters etc ....... > > I don't quite follow what you're trying to do - you want to turn raw > flash into a block device, i.e. an ftl? > > Bcache is pretty close to being an ftl, and I think what's left will Exactly. So what I'm saying is, if UBI also does ftl then you could be duplicating code/efforts. UBI is already upstream. Now whether it supports everything we want is another thing. (and that's why I CC'd its author). So pieces that aren't there could be implemented. But they also talk about erase-counters etc and I don't know if I saw something similar in your bucket_struct[or foo_struct]. May be its somewhere else. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
