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authorKevin Wolf <kwolf@redhat.com>2017-03-06 16:20:51 +0100
committerKevin Wolf <kwolf@redhat.com>2017-03-07 14:53:28 +0100
commit5fe31c25cce3b09e989e40439667cd4961aba969 (patch)
tree0b9809f4e3af0d80e817a65d0723f305dfe187ae /include
parent234ac1a9025bcfcc532449f72a97b3d4754d466c (diff)
block: Fix error handling in bdrv_replace_in_backing_chain()
When adding an Error parameter, bdrv_replace_in_backing_chain() would become nothing more than a wrapper around change_parent_backing_link(). So make the latter public, renamed as bdrv_replace_node(), and remove bdrv_replace_in_backing_chain(). Most of the callers just remove a node from the graph that they just inserted, so they can use &error_abort, but completion of a mirror job with 'replaces' set can actually fail. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/block/block.h4
-rw-r--r--include/block/block_int.h4
2 files changed, 4 insertions, 4 deletions
diff --git a/include/block/block.h b/include/block/block.h
index c7c4a3ac3a..5149260827 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -238,8 +238,8 @@ int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp);
BlockDriverState *bdrv_new(void);
void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
Error **errp);
-void bdrv_replace_in_backing_chain(BlockDriverState *old,
- BlockDriverState *new);
+void bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
+ Error **errp);
int bdrv_parse_cache_mode(const char *mode, int *flags, bool *writethrough);
int bdrv_parse_discard_flags(const char *mode, int *flags);
diff --git a/include/block/block_int.h b/include/block/block_int.h
index fc83f7f2ce..6c699ac9c3 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -441,8 +441,8 @@ typedef struct BdrvAioNotifier {
} BdrvAioNotifier;
struct BdrvChildRole {
- /* If true, bdrv_replace_in_backing_chain() doesn't change the node this
- * BdrvChild points to. */
+ /* If true, bdrv_replace_node() doesn't change the node this BdrvChild
+ * points to. */
bool stay_at_node;
void (*inherit_options)(int *child_flags, QDict *child_options,