-/*
- * Wait for a request to complete.
- *
- * Interruptible by fatal signals only.
- */
-static int nfs_wait_on_requests_locked(struct inode *inode, pgoff_t idx_start, unsigned int npages)
-{
- struct nfs_inode *nfsi = NFS_I(inode);
- struct nfs_page *req;
- pgoff_t idx_end, next;
- unsigned int res = 0;
- int error;
-
- if (npages == 0)
- idx_end = ~0;
- else
- idx_end = idx_start + npages - 1;
-
- next = idx_start;
- while (radix_tree_gang_lookup_tag(&nfsi->nfs_page_tree, (void **)&req, next, 1, NFS_PAGE_TAG_LOCKED)) {
- if (req->wb_index > idx_end)
- break;
-
- next = req->wb_index + 1;
- BUG_ON(!NFS_WBACK_BUSY(req));
-
- kref_get(&req->wb_kref);
- spin_unlock(&inode->i_lock);
- error = nfs_wait_on_request(req);
- nfs_release_request(req);
- spin_lock(&inode->i_lock);
- if (error < 0)
- return error;
- res++;
- }
- return res;
-}
-
-static void nfs_cancel_commit_list(struct list_head *head)
-{
- struct nfs_page *req;
-
- while(!list_empty(head)) {
- req = nfs_list_entry(head->next);
- nfs_list_remove_request(req);
- nfs_clear_request_commit(req);
- nfs_inode_remove_request(req);
- nfs_unlock_request(req);
- }
-}
-