-
- new = nfs_create_request(ctx, inode, page, offset, bytes);
- if (IS_ERR(new))
- return new;
- if (radix_tree_preload(GFP_NOFS)) {
- nfs_release_request(new);
- return ERR_PTR(-ENOMEM);
- }
- }
-
- /* We have a request for our page.
- * If the creds don't match, or the
- * page addresses don't match,
- * tell the caller to wait on the conflicting
- * request.
- */
- rqend = req->wb_offset + req->wb_bytes;
- if (req->wb_context != ctx
- || req->wb_page != page
- || !nfs_dirty_request(req)
- || offset > rqend || end < req->wb_offset) {
- nfs_clear_page_tag_locked(req);
- return ERR_PTR(-EBUSY);
+ error = nfs_wait_on_request(req);
+ nfs_release_request(req);
+ if (error != 0)
+ goto out_err;
+ spin_lock(&inode->i_lock);