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storage: dir: .resizeVol callback for ploop volume

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Changes the size of given ploop volume via ploop resize tool.

Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
This commit is contained in:
Olga Krishtal 2016-04-11 19:16:22 +03:00 committed by Ján Tomko
parent 02d1e45654
commit d957ba8deb
3 changed files with 29 additions and 0 deletions
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25
src/storage/storage_backend.c
View File

@ -850,6 +850,31 @@ 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,

2
src/storage/storage_backend.h
View File

@ -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,

2
src/storage/storage_backend_fs.c
View File

@ -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",