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authorJeff Cody <jcody@redhat.com>2012-09-20 15:13:28 -0400
committerKevin Wolf <kwolf@redhat.com>2012-09-24 15:15:12 +0200
commit21d82ac95f67947ebc32ada96184f00831a9b911 (patch)
treec2eb1be762e6d9c5720ad9eb6b0e5693d9f78c7e
parentf9cb20f167ff205e37a895ee6a03d5a183ef8acf (diff)
downloadqemu-arm-21d82ac95f67947ebc32ada96184f00831a9b911.tar.gz
block: qcow2 image file reopen
These are the stubs for the file reopen drivers for the qcow2 format. There is currently nothing that needs to be done by the qcow2 driver in reopen. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--block/qcow2.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/block/qcow2.c b/block/qcow2.c
index 8f183f1465..aa5e603cd3 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -52,6 +52,7 @@ typedef struct {
uint32_t magic;
uint32_t len;
} QCowExtension;
+
#define QCOW2_EXT_MAGIC_END 0
#define QCOW2_EXT_MAGIC_BACKING_FORMAT 0xE2792ACA
#define QCOW2_EXT_MAGIC_FEATURE_TABLE 0x6803f857
@@ -558,6 +559,14 @@ static int qcow2_set_key(BlockDriverState *bs, const char *key)
return 0;
}
+/* We have nothing to do for QCOW2 reopen, stubs just return
+ * success */
+static int qcow2_reopen_prepare(BDRVReopenState *state,
+ BlockReopenQueue *queue, Error **errp)
+{
+ return 0;
+}
+
static int coroutine_fn qcow2_co_is_allocated(BlockDriverState *bs,
int64_t sector_num, int nb_sectors, int *pnum)
{
@@ -1679,6 +1688,7 @@ static BlockDriver bdrv_qcow2 = {
.bdrv_probe = qcow2_probe,
.bdrv_open = qcow2_open,
.bdrv_close = qcow2_close,
+ .bdrv_reopen_prepare = qcow2_reopen_prepare,
.bdrv_create = qcow2_create,
.bdrv_co_is_allocated = qcow2_co_is_allocated,
.bdrv_set_key = qcow2_set_key,