diff options
Diffstat (limited to 'block/vmdk.c')
| -rw-r--r-- | block/vmdk.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/block/vmdk.c b/block/vmdk.c index 85864b8045..dda783f06b 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -300,7 +300,8 @@ static void vmdk_free_last_extent(BlockDriverState *bs) } /* Return -ve errno, or 0 on success and write CID into *pcid. */ -static int vmdk_read_cid(BlockDriverState *bs, int parent, uint32_t *pcid) +static int GRAPH_RDLOCK +vmdk_read_cid(BlockDriverState *bs, int parent, uint32_t *pcid) { char *desc; uint32_t cid; @@ -380,7 +381,7 @@ out: return ret; } -static int coroutine_fn vmdk_is_cid_valid(BlockDriverState *bs) +static int coroutine_fn GRAPH_RDLOCK vmdk_is_cid_valid(BlockDriverState *bs) { BDRVVmdkState *s = bs->opaque; uint32_t cur_pcid; @@ -415,6 +416,9 @@ static int vmdk_reopen_prepare(BDRVReopenState *state, BDRVVmdkReopenState *rs; int i; + GLOBAL_STATE_CODE(); + GRAPH_RDLOCK_GUARD_MAINLOOP(); + assert(state != NULL); assert(state->bs != NULL); assert(state->opaque == NULL); @@ -451,6 +455,9 @@ static void vmdk_reopen_commit(BDRVReopenState *state) BDRVVmdkReopenState *rs = state->opaque; int i; + GLOBAL_STATE_CODE(); + GRAPH_RDLOCK_GUARD_MAINLOOP(); + for (i = 0; i < s->num_extents; i++) { if (rs->extents_using_bs_file[i]) { s->extents[i].file = state->bs->file; @@ -465,7 +472,7 @@ static void vmdk_reopen_abort(BDRVReopenState *state) vmdk_reopen_clean(state); } -static int vmdk_parent_open(BlockDriverState *bs) +static int GRAPH_RDLOCK vmdk_parent_open(BlockDriverState *bs) { char *p_name; char *desc; @@ -2547,7 +2554,10 @@ vmdk_co_do_create(int64_t size, ret = -EINVAL; goto exit; } + + bdrv_graph_co_rdlock(); ret = vmdk_read_cid(blk_bs(backing), 0, &parent_cid); + bdrv_graph_co_rdunlock(); blk_co_unref(backing); if (ret) { error_setg(errp, "Failed to read parent CID"); @@ -2894,7 +2904,7 @@ vmdk_co_get_allocated_file_size(BlockDriverState *bs) return ret; } -static int vmdk_has_zero_init(BlockDriverState *bs) +static int GRAPH_RDLOCK vmdk_has_zero_init(BlockDriverState *bs) { int i; BDRVVmdkState *s = bs->opaque; @@ -3044,8 +3054,9 @@ vmdk_co_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return 0; } -static void vmdk_gather_child_options(BlockDriverState *bs, QDict *target, - bool backing_overridden) +static void GRAPH_RDLOCK +vmdk_gather_child_options(BlockDriverState *bs, QDict *target, + bool backing_overridden) { /* No children but file and backing can be explicitly specified (TODO) */ qdict_put(target, "file", |