From: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 22 Aug 2011 03:44:04 +0000 (+0530)
Subject: hw/9pfs: Add yeild support for fstat coroutine
X-Git-Tag: qemu-xen-4.2.0~579^2~24
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=03feb1e1724949d94d4e442f865392320139162c;p=qemu-xen.git

hw/9pfs: Add yeild support for fstat coroutine

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

diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
index a4c0ae75cc..e400b86d84 100644
--- a/hw/9pfs/cofile.c
+++ b/hw/9pfs/cofile.c
@@ -30,3 +30,17 @@ int v9fs_co_lstat(V9fsState *s, V9fsString *path, struct stat *stbuf)
         });
     return err;
 }
+
+int v9fs_co_fstat(V9fsState *s, int fd, struct stat *stbuf)
+{
+    int err;
+
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->fstat(&s->ctx, fd, stbuf);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    return err;
+}
diff --git a/hw/9pfs/virtio-9p-coth.h b/hw/9pfs/virtio-9p-coth.h
index 11272d3357..88070d3332 100644
--- a/hw/9pfs/virtio-9p-coth.h
+++ b/hw/9pfs/virtio-9p-coth.h
@@ -76,4 +76,5 @@ extern int v9fs_co_mknod(V9fsState *, V9fsString *, uid_t,
 extern int v9fs_co_mkdir(V9fsState *, char *, mode_t, uid_t, gid_t);
 extern int v9fs_co_remove(V9fsState *, V9fsString *);
 extern int v9fs_co_rename(V9fsState *, V9fsString *, V9fsString *);
+extern int v9fs_co_fstat(V9fsState *, int, struct stat *);
 #endif