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- /****************************************************************************
- * fs/inode/fs_inoderelease.c
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership. The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- ****************************************************************************/
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <debug.h>
- #include <errno.h>
- #include <nuttx/kmalloc.h>
- #include <nuttx/fs/fs.h>
- #include "inode/inode.h"
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: inode_release
- *
- * Description:
- * This is called from close() logic when it no longer refers to the inode.
- *
- ****************************************************************************/
- void inode_release(FAR struct inode *node)
- {
- int ret;
- if (node)
- {
- /* Decrement the references of the inode */
- do
- {
- ret = inode_semtake();
- /* This only possible error is due to cancellation of the thread.
- * We need to try again anyway in this case, otherwise the
- * reference count would be wrong.
- */
- DEBUGASSERT(ret == OK || ret == -ECANCELED);
- }
- while (ret < 0);
- if (node->i_crefs)
- {
- node->i_crefs--;
- }
- /* If the subtree was previously deleted and the reference
- * count has decrement to zero, then delete the inode
- * now.
- */
- if (node->i_crefs <= 0 && (node->i_flags & FSNODEFLAG_DELETED) != 0)
- {
- /* If the inode has been properly unlinked, then the peer pointer
- * should be NULL.
- */
- inode_semgive();
- DEBUGASSERT(node->i_peer == NULL);
- inode_free(node);
- }
- else
- {
- inode_semgive();
- }
- }
- }
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