[libvirt] [PATCH 4/7] storage:dir: .resizeVol callback for ploop volume

Changes the size of given ploop volume via ploop resize tool. Signed-off-by: Olga Krishtal <okrishtal(a)virtuozzo.com&gt; --- src/storage/storage_backend.c | 25 +++++++++++++++++++++++++ src/storage/storage_backend.h | 2 ++ src/storage/storage_backend_fs.c | 2 ++ 3 files changed, 29 insertions(+) diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c index d109980..fddec3c 100644 --- a/src/storage/storage_backend.c +++ b/src/storage/storage_backend.c @@ -848,6 +848,31 @@ virStorageBackendCreatePloop(virConnectPtr conn ATTRIBUTE_UNUSED, return ret; } +int +virStoragePloopResize(virStorageVolDefPtr vol, + unsigned long long capacity) +{ + int ret = -1; + virCommandPtr cmd = NULL; + char *resize_tool = NULL; + + resize_tool = virFindFileInPath("ploop"); + if (!resize_tool) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("unable to find ploop, please install ploop tools")); + return -1; + } + cmd = virCommandNewArgList(resize_tool, "resize", "-s", NULL); + virCommandAddArgFormat(cmd, "%lluM", VIR_DIV_UP(capacity, (1024 * 1024))); + + virCommandAddArgFormat(cmd, "%s/DiskDescriptor.xml", vol->target.path); + + ret = virCommandRun(cmd, NULL); + virCommandFree(cmd); + VIR_FREE(resize_tool); + return ret; +} + enum { QEMU_IMG_BACKING_FORMAT_NONE = 0, QEMU_IMG_BACKING_FORMAT_FLAG, diff --git a/src/storage/storage_backend.h b/src/storage/storage_backend.h index 852d6ed..73f2bfa 100644 --- a/src/storage/storage_backend.h +++ b/src/storage/storage_backend.h @@ -115,6 +115,8 @@ int virStorageBackendCreatePloop(virConnectPtr conn, virStorageVolDefPtr inputvol, unsigned int flags); +int virStoragePloopResize(virStorageVolDefPtr vol, + unsigned long long capacity); virStorageBackendBuildVolFrom virStorageBackendGetBuildVolFromFunction(virStorageVolDefPtr vol, diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c index 77c94c9..eae2b2e 100644 --- a/src/storage/storage_backend_fs.c +++ b/src/storage/storage_backend_fs.c @@ -1379,6 +1379,8 @@ virStorageBackendFileSystemVolResize(virConnectPtr conn ATTRIBUTE_UNUSED, if (vol->target.format == VIR_STORAGE_FILE_RAW) { return virStorageFileResize(vol->target.path, capacity, vol->target.allocation, pre_allocate); + } else if (vol->target.format == VIR_STORAGE_FILE_PLOOP) { + return virStoragePloopResize(vol, capacity); } else { if (pre_allocate) { virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", -- 1.8.3.1