iget5_locked - obtain an inode from a mounted file system
2. SYNOPSIS ▲
struct inode * iget5_locked(struct super_block * sb , unsigned long hashval , int (* test ) (struct inode *, void *), int (* set ) (struct inode *, void *), void * data );
3. ARGUMENTS ▲
super block of file system
hash value (usually inode number) to get
callback used for comparisons between inodes
callback used to initialize a new struct inode
opaque data pointer to pass to test and set
4. 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 canAqt sleep.
5. COPYRIGHT ▲