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authorKevin Wolf <kwolf@redhat.com>2017-03-09 11:49:16 +0100
committerKevin Wolf <kwolf@redhat.com>2017-03-13 12:49:33 +0100
commitfd4a6493bb7c5f9bea0e7d9de09ccc0d573e3789 (patch)
treef2b400f0a8e4ffcaf72ea43b80ae2cfd1f737040 /block
parent9e7e940c3dc9d9643065dc0f64eb51efca954e54 (diff)
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mirror: Implement .bdrv_refresh_filename
We want query-block to return the right filename, even if a mirror job put a bdrv_mirror_top on top of the actual image format driver. Let bdrv_mirror_top.bdrv_refresh_filename get the filename from its backing file. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/mirror.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/block/mirror.c b/block/mirror.c
index a5d30ee..4f3a5cb 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -12,6 +12,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/cutils.h"
#include "trace.h"
#include "block/blockjob_int.h"
#include "block/block_int.h"
@@ -1060,6 +1061,13 @@ static int coroutine_fn bdrv_mirror_top_pdiscard(BlockDriverState *bs,
return bdrv_co_pdiscard(bs->backing->bs, offset, count);
}
+static void bdrv_mirror_top_refresh_filename(BlockDriverState *bs, QDict *opts)
+{
+ bdrv_refresh_filename(bs->backing->bs);
+ pstrcpy(bs->exact_filename, sizeof(bs->exact_filename),
+ bs->backing->bs->filename);
+}
+
static void bdrv_mirror_top_close(BlockDriverState *bs)
{
}
@@ -1088,6 +1096,7 @@ static BlockDriver bdrv_mirror_top = {
.bdrv_co_pdiscard = bdrv_mirror_top_pdiscard,
.bdrv_co_flush = bdrv_mirror_top_flush,
.bdrv_co_get_block_status = bdrv_mirror_top_get_block_status,
+ .bdrv_refresh_filename = bdrv_mirror_top_refresh_filename,
.bdrv_close = bdrv_mirror_top_close,
.bdrv_child_perm = bdrv_mirror_top_child_perm,
};