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This gets rid of another stat() per volume, as well as cutting bytes read in half, when populating the volumes of a directory pool during a pool refresh. Not to mention that it provides an interface that can let gluster pools also probe file types. * src/util/virstoragefile.h (virStorageFileProbeFormatFromFD): Delete. (virStorageFileProbeFormatFromBuf): New prototype. (VIR_STORAGE_MAX_HEADER): New constant, based on... * src/util/virstoragefile.c (STORAGE_MAX_HEAD): ...old name. (vmdk4GetBackingStore, virStorageFileGetMetadataInternal) (virStorageFileProbeFormat): Adjust clients. (virStorageFileProbeFormatFromFD): Delete. (virStorageFileProbeFormatFromBuf): Export. * src/storage/storage_backend_fs.c (virStorageBackendProbeTarget): Adjust client. * src/libvirt_private.syms (virstoragefile.h): Adjust exports. Signed-off-by: Eric Blake <eblake@redhat.com>
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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