centos man page for iget5_locked

IGET5_LOCKED(9) 						   The Linux VFS						   IGET5_LOCKED(9)

NAME
       iget5_locked - obtain an inode from a mounted file system

SYNOPSIS
       struct inode * iget5_locked(struct super_block * sb, unsigned long hashval, int (*test) (struct inode *, void *),
				   int (*set) (struct inode *, void *), void * data);

ARGUMENTS
       sb
	   super block of file system

       hashval
	   hash value (usually inode number) to get

       test
	   callback used for comparisons between inodes

       set
	   callback used to initialize a new struct inode

       data
	   opaque data pointer to pass to test and set

DESCRIPTION
       Search for the inode specified by hashval and data in the inode cache, and if present it is return it with an increased reference count.
       This is a generalized version of iget_locked for file systems where the inode number is not sufficient for unique identification of an
       inode.

       If the inode is not in cache, allocate a new inode and return it locked, hashed, and with the I_NEW flag set. The file system gets to fill
       it in before unlocking it via unlock_new_inode.

       Note both test and set are called with the inode_hash_lock held, so can't sleep.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							   IGET5_LOCKED(9)