hw/9pfs: Add yield support for pwritev coroutine

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
index 52eec2a662..e0d032dc15 100644
--- a/hw/9pfs/cofile.c
+++ b/hw/9pfs/cofile.c
@@ -127,3 +127,20 @@ int v9fs_co_link(V9fsState *s, V9fsString *oldpath, V9fsString *newpath)
         });
     return err;
 }
+
+int v9fs_co_pwritev(V9fsState *s, V9fsFidState *fidp,
+                    struct iovec *iov, int iovcnt, int64_t offset)
+{
+    int fd;
+    int err;
+
+    fd = fidp->fs.fd;
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->pwritev(&s->ctx, fd, iov, iovcnt, offset);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    return err;
+}