ilookup5
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## Name

ilookup5 — search for an inode in the inode cache

## Synopsis

`struct inode * ilookup5 (` | struct super_block * sb,
| unsigned long hashval,
| int (*test) `(`struct inode *, void *`)`,
| void * data`)`;

## Arguments

`sb`

  super block of file system to search

`hashval`

  hash value (usually inode number) to search for

`test`

  callback used for comparisons between inodes

`data`

  opaque data pointer to pass to `test`

## Description

Search for the inode specified by `hashval` and `data` in the inode cache, and if the inode is in the cache, return the inode with an incremented reference count. Waits on I_NEW before returning the inode. returned with an incremented reference count.

This is a generalized version of `ilookup` for file systems where the inode number is not sufficient for unique identification of an inode.

## Note

`test` is called with the inode_hash_lock held, so can't sleep.

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