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inode_find: Now takes struct inode_desc_s type as input. This was necessary before that structure includes some data storage. It was used within inode_find(), but that means that the life of the data was the life of inode_find(). That data must persist longer. It is now provided by the caller so that the life of the data persists for the entire life of the caller.

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This commit is contained in:
Gregory Nutt
2017-02-05 09:51:42 -06:00
parent 990bed903e
commit 8f2c7198ed
20 changed files with 284 additions and 129 deletions
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fs/inode/fs_inodefind.c
+6 -27
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@@ -56,55 +56,34 @@
* Description:
* This is called from the open() logic to get a reference to the inode
* associated with a path. This is accomplished by calling inode_search().
* The primary difference between inode_find() and inode_search is (1) in
* the form of the input paramters and return value and (2) inode_find()
* inode_find() is a simple wrapper around inode_search(). The primary
* difference between inode_find() and inode_search is that inode_find()
* will lock the inode tree and increment the reference count on the inode.
*
****************************************************************************/
FAR struct inode *inode_find(FAR const char *path, FAR const char **relpath,
bool nofollow)
int inode_find(FAR struct inode_search_s *desc)
{
struct inode_search_s desc;
FAR struct inode *node = NULL;
int ret;
if (path == NULL || *path != '/')
{
return NULL;
}
/* Find the node matching the path. If found, increment the count of
* references on the node.
*/
RESET_SEARCH(&desc);
desc.path = path;
#ifdef CONFIG_PSEUDOFS_SOFTLINKS
desc.nofollow = nofollow;
#endif
inode_semtake();
ret = inode_search(&desc);
ret = inode_search(desc);
if (ret >= 0)
{
/* Found it */
node = desc.node;
FAR struct inode *node = desc->node;
DEBUGASSERT(node != NULL);
/* Increment the reference count on the inode */
node->i_crefs++;
/* Return any remaining relative path fragment */
if (relpath != NULL)
{
*relpath = desc.relpath;
}
}
inode_semgive();
return node;
return ret;
}