On Sat, Jul 18, 2009 at 04:21:56PM +0200, Andi Kleen wrote: > > We don't have to rewrite fsck; most of the framework for supporting an > > run-length-conding for compressed bitmaps is already in patches that > > add > 32-bit block numbers to e2fsprogs; we've just been more focused > > on getting 64-bit block numbers support merged than implementing > > compressed bitmaps, but it's only one file that would need to be > > added, and we might be able to steal the compressed bitmap support > > from xfsprogs --- which does this already. > > There are regular reports of xfs_repair failing on 32bit, > even on volumes far smaller than 16TB. We have a set of patches pending to reduce memory use in xfs_repair dramaticly, replacing bitmaps for tracking used blocks with extent structures stored in btrees. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
