[PATCH 2/6] storage:dir: .deleteVol callback for ploop volume

[Olga Krishtal <okrishtal@xxxxxxxxxxxxx>]

Deletes whole directory of a ploop volume. To delete ploop image it has
to be unmounted.

Signed-off-by: Olga Krishtal <okrishtal@xxxxxxxxxxxxx>
---
 src/storage/storage_backend.c    | 6 ++++++
 src/storage/storage_backend.h    | 2 ++
 src/storage/storage_backend_fs.c | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
index 039a540..34c9d40 100644
--- a/src/storage/storage_backend.c
+++ b/src/storage/storage_backend.c
@@ -871,6 +871,12 @@ int virStorageBackendCreatePloop(virConnectPtr conn ATTRIBUTE_UNUSED,
     return ret;
 }
 
+int virStorageBackendDeletePloop(virConnectPtr conn ATTRIBUTE_UNUSED,
+                           virStorageVolDefPtr vol)
+{
+    return virFileDeleteTree(vol->target.path);
+}
+
 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..7d354c5 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 virStorageBackendDeletePloop(virConnectPtr conn,
+                                 virStorageVolDefPtr vol);
 
 virStorageBackendBuildVolFrom
 virStorageBackendGetBuildVolFromFunction(virStorageVolDefPtr vol,
diff --git a/src/storage/storage_backend_fs.c b/src/storage/storage_backend_fs.c
index 80c7e9e..2290096 100644
--- a/src/storage/storage_backend_fs.c
+++ b/src/storage/storage_backend_fs.c
@@ -1245,6 +1245,11 @@ virStorageBackendFileSystemVolDelete(virConnectPtr conn ATTRIBUTE_UNUSED,
     switch ((virStorageVolType) vol->type) {
     case VIR_STORAGE_VOL_FILE:
     case VIR_STORAGE_VOL_DIR:
+        if (vol->target.format == VIR_STORAGE_FILE_PLOOP) {
+            if (virStorageBackendDeletePloop(conn, vol) < 0)
+                return -1;
+            break;
+        }
         if (virFileRemove(vol->target.path, vol->target.perms->uid,
                           vol->target.perms->gid) < 0) {
             /* Silently ignore failures where the vol has already gone away */
-- 
1.8.3.1

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