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qemu: block: Introduce qemuBlockStorageSourceGetSliceNodename

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The helper retrieves the nodename of the slice layer if it's present.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2023-11-24 10:14:52 +01:00
parent 156ddb43b1
commit 05326395a9
2 changed files with 23 additions and 3 deletions
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23
src/qemu/qemu_block.c
View File

@ -101,6 +101,22 @@ qemuBlockStorageSourceGetEffectiveNodename(virStorageSource *src)
} }
/**
* qemuBlockStorageSourceGetSliceNodename:
*
* Gets the nodename corresponding to the storage slice layer. Returns NULL
* when there is no explicit storage slice layer.
*/
const char *
qemuBlockStorageSourceGetSliceNodename(virStorageSource *src)
{
if (!src->sliceStorage)
return NULL;
return src->sliceStorage->nodename;
}
/** /**
* qemuBlockStorageSourceGetEffectiveStorageNodename: * qemuBlockStorageSourceGetEffectiveStorageNodename:
* @src: virStorageSource to get the effective nodename of * @src: virStorageSource to get the effective nodename of
@ -111,9 +127,10 @@ qemuBlockStorageSourceGetEffectiveNodename(virStorageSource *src)
const char * const char *
qemuBlockStorageSourceGetEffectiveStorageNodename(virStorageSource *src) qemuBlockStorageSourceGetEffectiveStorageNodename(virStorageSource *src)
{ {
if (src->sliceStorage && const char *slice = qemuBlockStorageSourceGetSliceNodename(src);
src->sliceStorage->nodename)
return src->sliceStorage->nodename; if (slice)
return slice;
return src->nodenamestorage; return src->nodenamestorage;
} }

3
src/qemu/qemu_block.h
View File

@ -40,6 +40,9 @@ qemuBlockStorageSourceGetEffectiveStorageNodename(virStorageSource *src);
const char * const char *
qemuBlockStorageSourceGetStorageNodename(virStorageSource *src); qemuBlockStorageSourceGetStorageNodename(virStorageSource *src);
const char *
qemuBlockStorageSourceGetSliceNodename(virStorageSource *src);
const char * const char *
qemuBlockStorageSourceGetFormatNodename(virStorageSource *src); qemuBlockStorageSourceGetFormatNodename(virStorageSource *src);