diff options
Diffstat (limited to 'block/block-copy.c')
| -rw-r--r-- | block/block-copy.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/block/block-copy.c b/block/block-copy.c index d299fac7cc..e13d7bc6b6 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -469,10 +469,9 @@ static coroutine_fn int block_copy_task_run(AioTaskPool *pool, * value of @method should be used for subsequent tasks. * Returns 0 on success. */ -static int coroutine_fn block_copy_do_copy(BlockCopyState *s, - int64_t offset, int64_t bytes, - BlockCopyMethod *method, - bool *error_is_read) +static int coroutine_fn GRAPH_RDLOCK +block_copy_do_copy(BlockCopyState *s, int64_t offset, int64_t bytes, + BlockCopyMethod *method, bool *error_is_read) { int ret; int64_t nbytes = MIN(offset + bytes, s->len) - offset; @@ -558,8 +557,10 @@ static coroutine_fn int block_copy_task_entry(AioTask *task) BlockCopyMethod method = t->method; int ret; - ret = block_copy_do_copy(s, t->req.offset, t->req.bytes, &method, - &error_is_read); + WITH_GRAPH_RDLOCK_GUARD() { + ret = block_copy_do_copy(s, t->req.offset, t->req.bytes, &method, + &error_is_read); + } WITH_QEMU_LOCK_GUARD(&s->lock) { if (s->method == t->method) { |