Add qemu 2.4.0

[kvmfornfv.git] / qemu / hw / 9pfs / coxattr.c

diff --git a/qemu/hw/9pfs/coxattr.c b/qemu/hw/9pfs/coxattr.c
new file mode 100644 (file)
index 0000000..18ee08d
--- /dev/null
+++ b/qemu/hw/9pfs/coxattr.c
@@ -0,0 +1,107 @@
+
+/*
+ * 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 "block/coroutine.h"
+#include "virtio-9p-coth.h"
+
+int v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value, size_t size)
+{
+    int err;
+    V9fsState *s = pdu->s;
+
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
+    v9fs_path_read_lock(s);
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->llistxattr(&s->ctx, path, value, size);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    v9fs_path_unlock(s);
+    return err;
+}
+
+int v9fs_co_lgetxattr(V9fsPDU *pdu, V9fsPath *path,
+                      V9fsString *xattr_name,
+                      void *value, size_t size)
+{
+    int err;
+    V9fsState *s = pdu->s;
+
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
+    v9fs_path_read_lock(s);
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->lgetxattr(&s->ctx, path,
+                                    xattr_name->data,
+                                    value, size);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    v9fs_path_unlock(s);
+    return err;
+}
+
+int v9fs_co_lsetxattr(V9fsPDU *pdu, V9fsPath *path,
+                      V9fsString *xattr_name, void *value,
+                      size_t size, int flags)
+{
+    int err;
+    V9fsState *s = pdu->s;
+
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
+    v9fs_path_read_lock(s);
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->lsetxattr(&s->ctx, path,
+                                    xattr_name->data, value,
+                                    size, flags);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    v9fs_path_unlock(s);
+    return err;
+}
+
+int v9fs_co_lremovexattr(V9fsPDU *pdu, V9fsPath *path,
+                         V9fsString *xattr_name)
+{
+    int err;
+    V9fsState *s = pdu->s;
+
+    if (v9fs_request_cancelled(pdu)) {
+        return -EINTR;
+    }
+    v9fs_path_read_lock(s);
+    v9fs_co_run_in_worker(
+        {
+            err = s->ops->lremovexattr(&s->ctx, path, xattr_name->data);
+            if (err < 0) {
+                err = -errno;
+            }
+        });
+    v9fs_path_unlock(s);
+    return err;
+}