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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-05-18 16:04:13 -0700
committerAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-08-08 23:42:58 +0530
commit172198d4db28d537f9e2cfb8af3fef9cd4d2b543 (patch)
treedd773d91e3850453833ec2e261bd2e25e7c4418a /hw/9pfs
parent88a4763e88e7724e739515d3e2c734f7ec0ea9cf (diff)
hw/9pfs: Add yield support to lstat coroutine
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'hw/9pfs')
-rw-r--r--hw/9pfs/cofile.c32
-rw-r--r--hw/9pfs/virtio-9p-coth.h1
2 files changed, 33 insertions, 0 deletions
diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
new file mode 100644
index 0000000000..a4c0ae75cc
--- /dev/null
+++ b/hw/9pfs/cofile.c
@@ -0,0 +1,32 @@
+
+/*
+ * Virtio 9p backend
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "fsdev/qemu-fsdev.h"
+#include "qemu-thread.h"
+#include "qemu-coroutine.h"
+#include "virtio-9p-coth.h"
+
+int v9fs_co_lstat(V9fsState *s, V9fsString *path, struct stat *stbuf)
+{
+ int err;
+
+ v9fs_co_run_in_worker(
+ {
+ err = s->ops->lstat(&s->ctx, path->data, 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 5d9dc0f6cc..3538d91344 100644
--- a/hw/9pfs/virtio-9p-coth.h
+++ b/hw/9pfs/virtio-9p-coth.h
@@ -63,4 +63,5 @@ extern off_t v9fs_co_telldir(V9fsState *, V9fsFidState *);
extern void v9fs_co_seekdir(V9fsState *, V9fsFidState *, off_t);
extern void v9fs_co_rewinddir(V9fsState *, V9fsFidState *);
extern int v9fs_co_statfs(V9fsState *, V9fsString *, struct statfs *);
+extern int v9fs_co_lstat(V9fsState *, V9fsString *, struct stat *);
#endif