Reviewed-by: Eric Blake <ebl...@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
block/vvfat.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/block/vvfat.c b/block/vvfat.c
index 8ab647c0c6..d2679c2ff5 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -2982,8 +2982,14 @@ static int coroutine_fn
write_target_commit(BlockDriverState *bs, uint64_t offset, uint64_t bytes,
QEMUIOVector *qiov, int flags)
{
+ int ret;
+
BDRVVVFATState* s = *((BDRVVVFATState**) bs->opaque);
- return try_commit(s);
+ qemu_co_mutex_lock(&s->lock);
+ ret = try_commit(s);
+ qemu_co_mutex_unlock(&s->lock);
+
+ return ret;
}
static void write_target_close(BlockDriverState *bs) {
--
2.13.0
