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Diffstat (limited to 'xlators/features/metadisp/src/metadisp-create.c')
-rw-r--r--xlators/features/metadisp/src/metadisp-create.c101
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 0000000..f8c9798
--- /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;
+}