diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-02-13 19:12:43 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2017-02-21 11:39:40 +0000 |
| commit | 1ace7ceac507d90d50ecb2e13f7222beadb64d92 (patch) | |
| tree | 0a457dc7da86284d408e13ceefc764b914b90b41 /block/qcow2-cluster.c | |
| parent | f8c6e1cbc3d397207bedabdb2932fd6e1d7484df (diff) | |
coroutine-lock: add mutex argument to CoQueue APIs
All that CoQueue needs in order to become thread-safe is help
from an external mutex. Add this to the API.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-id: 20170213181244.16297-6-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/qcow2-cluster.c')
| -rw-r--r-- | block/qcow2-cluster.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 928c1e298d..78c11d4948 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -932,9 +932,7 @@ static int handle_dependencies(BlockDriverState *bs, uint64_t guest_offset, if (bytes == 0) { /* Wait for the dependency to complete. We need to recheck * the free/allocated clusters when we continue. */ - qemu_co_mutex_unlock(&s->lock); - qemu_co_queue_wait(&old_alloc->dependent_requests); - qemu_co_mutex_lock(&s->lock); + qemu_co_queue_wait(&old_alloc->dependent_requests, &s->lock); return -EAGAIN; } } |