On Sat, Jul 25, 2015 at 09:18:54AM +0800, Qu Wenruo wrote: > > This caught my attention and looking at possible values of num_bytes, > > this can crash: > > > > 1291 for (last_byte = 0; last_byte < first_free; last_byte += > > sectorsize) { > > 1292 ret = custom_alloc_extent(root, sectorsize, 0, &key, > > 0); > > > > where sectorsize == num_bytes. > For that case, the last 0 means that's a data block, > and won't comes to the BUG_ON, as it is only designed for metadata. > And for metadata allocation, the size will only be nodes/leafsize
Right, so it's an asseert in disguise. Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html