1 files changed, 101 insertions, 0 deletions
diff --git a/xlators/features/metadisp/src/metadisp-create.c b/xlators/features/metadisp/src/metadisp-create.c
new file mode 100644
index 00000000000..f8c9798dd59
--- /dev/null
+++ b/xlators/features/metadisp/src/metadisp-create.c
@@ -0,0 +1,101 @@
+#include "metadisp.h"
+#include <glusterfs/call-stub.h>
+
+/**
+ * Create, like stat, is a two-step process. We send a create
+ * to the METADATA_CHILD, then send another create to the DATA_CHILD.
+ *
+ * We do the metadata child first to ensure that the ACLs are enforced.
+ */
+
+int32_t
+metadisp_create_dentry_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                           int32_t op_ret, int32_t op_errno, fd_t *fd,
+                           inode_t *inode, struct iatt *buf,
+                           struct iatt *preparent, struct iatt *postparent,
+                           dict_t *xdata)
+{
+    STACK_UNWIND_STRICT(create, frame, op_ret, op_errno, fd, inode, buf,
+                        preparent, postparent, xdata);
+    return 0;
+}
+
+int32_t
+metadisp_create_resume(call_frame_t *frame, xlator_t *this, loc_t *loc,
+                       int32_t flags, mode_t mode, mode_t umask, fd_t *fd,
+                       dict_t *xdata)
+{
+    // create the backend data inode
+    STACK_WIND(frame, metadisp_create_dentry_cbk, DATA_CHILD(this),
+               DATA_CHILD(this)->fops->create, loc, flags, mode, umask, fd,
+               xdata);
+    return 0;
+}
+
+int32_t
+metadisp_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+                    int32_t op_ret, int32_t op_errno, fd_t *fd, inode_t *inode,
+                    struct iatt *buf, struct iatt *preparent,
+                    struct iatt *postparent, dict_t *xdata)
+{
+    METADISP_TRACE("%d %d", op_ret, op_errno);
+    call_stub_t *stub = cookie;
+    if (op_ret != 0) {
+        STACK_UNWIND_STRICT(create, frame, op_ret, op_errno, fd, inode, buf,
+                            preparent, postparent, xdata);
+        return 0;
+    }
+
+    if (stub == NULL) {
+        goto unwind;
+    }
+
+    if (stub->poison) {
+        call_stub_destroy(stub);
+        return 0;
+    }
+
+    call_resume(stub);
+    return 0;
+
+unwind:
+    STACK_UNWIND_STRICT(create, frame, -1, EINVAL, NULL, NULL, NULL, NULL, NULL,
+                        NULL);
+    return 0;
+}
+
+int32_t
+metadisp_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags,
+                mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata)
+{
+    METADISP_TRACE(".");
+
+    loc_t backend_loc = {
+        0,
+    };
+    call_stub_t *stub = NULL;
+    uuid_t *gfid_req = NULL;
+
+    RESOLVE_GFID_REQ(xdata, gfid_req, out);
+
+    if (build_backend_loc(*gfid_req, loc, &backend_loc)) {
+        goto unwind;
+    }
+
+    frame->local = loc;
+
+    stub = fop_create_stub(frame, metadisp_create_resume, &backend_loc, flags,
+                           mode, umask, fd, xdata);
+
+    STACK_WIND_COOKIE(frame, metadisp_create_cbk, stub, METADATA_CHILD(this),
+                      METADATA_CHILD(this)->fops->create, loc, flags, mode,
+                      umask, fd, xdata);
+    return 0;
+
+unwind:
+    STACK_UNWIND_STRICT(create, frame, -1, EINVAL, NULL, NULL, NULL, NULL, NULL,
+                        NULL);
+    return 0;
+out:
+    return -1;
+}