1IGET5_LOCKED(9)                  The Linux VFS                 IGET5_LOCKED(9)
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NAME

6       iget5_locked - obtain an inode from a mounted file system
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SYNOPSIS

9       struct inode * iget5_locked(struct super_block * sb,
10                                   unsigned long hashval,
11                                   int (*test) (struct inode *, void *),
12                                   int (*set) (struct inode *, void *),
13                                   void * data);
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ARGUMENTS

16       sb
17           super block of file system
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19       hashval
20           hash value (usually inode number) to get
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22       test
23           callback used for comparisons between inodes
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25       set
26           callback used to initialize a new struct inode
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28       data
29           opaque data pointer to pass to test and set
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DESCRIPTION

32       iget5_locked uses ifind to search for the inode specified by hashval
33       and data in the inode cache and if present it is returned with an
34       increased reference count. This is a generalized version of iget_locked
35       for file systems where the inode number is not sufficient for unique
36       identification of an inode.
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38       If the inode is not in cache, get_new_inode is called to allocate a new
39       inode and this is returned locked, hashed, and with the I_NEW flag set.
40       The file system gets to fill it in before unlocking it via
41       unlock_new_inode.
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43       Note both test and set are called with the inode_lock held, so can´t
44       sleep.
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47Kernel Hackers Manual 2.6.         June 2019                   IGET5_LOCKED(9)
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