diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/block-copy.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/block/block-copy.c b/block/block-copy.c index b075dba206..251d415a2c 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -24,23 +24,30 @@ #define BLOCK_COPY_MAX_BUFFER (1 * MiB) #define BLOCK_COPY_MAX_MEM (128 * MiB) +static BlockCopyInFlightReq *find_conflicting_inflight_req(BlockCopyState *s, + int64_t start, + int64_t end) +{ + BlockCopyInFlightReq *req; + + QLIST_FOREACH(req, &s->inflight_reqs, list) { + if (end > req->start_byte && start < req->end_byte) { + return req; + } + } + + return NULL; +} + static void coroutine_fn block_copy_wait_inflight_reqs(BlockCopyState *s, int64_t start, int64_t end) { BlockCopyInFlightReq *req; - bool waited; - - do { - waited = false; - QLIST_FOREACH(req, &s->inflight_reqs, list) { - if (end > req->start_byte && start < req->end_byte) { - qemu_co_queue_wait(&req->wait_queue, NULL); - waited = true; - break; - } - } - } while (waited); + + while ((req = find_conflicting_inflight_req(s, start, end))) { + qemu_co_queue_wait(&req->wait_queue, NULL); + } } static void block_copy_inflight_req_begin(BlockCopyState *s, |