On Thu, Oct 16, 2008 at 03:25:01PM -0400, Valerie Aurora Henson wrote: > Both deduplication and compression have an interesting side effect in > which a write to a previously "allocated" block can return ENOSPC. > This is even more exciting when you factor in mmap. Any thoughts on > how to handle this?
Note that this can already happen in todays filesystems. Writing into some preallocated space can always cause splits of the allocation or bmap btrees as the pervious big preallocated extent now is split into one allocated and at least one (or two if writing into the middle) preallocated extents. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
