Re: [libvirt] PATCH: Don't blindly reorder disk drives

Calling qsort() on the disks array causes disk to be unneccessarily re-ordered, potentially breaking the ability to boot if the boot disk gets moved later in the list. The new algorithm will insert a new disk as far to the end of the list as possible, while being ordered correctly wrt other disks on the same bus. * src/domain_conf.c, src/domain_conf.h: Remove disk sorting routines. Add API to insert a disk into existing list at the optimal position, without resorting disks * src/libvirt_private.syms: Export virDomainDiskInsert * src/xend_internal.c, src/xm_internal.c: Remove calls to qsort, use virDomainDiskInsert instead. * src/qemu_driver.c: Remove calls to qsort, use virDoaminDiskInsert instead. Fix reordering bugs when hotunplugging disks and networks. Fix memory leak in disk/net unplug