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libfs: document simple_get_link() 

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Eric Biggers 2019-04-11 16:16:30 -07:00 committed by Al Viro
parent 1a6a316550
commit 6ee9706aa2
1 changed files with 14 additions and 0 deletions
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14
fs/libfs.c
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@ -1167,6 +1167,20 @@ simple_nosetlease(struct file *filp, long arg, struct file_lock **flp,
}
EXPORT_SYMBOL(simple_nosetlease);
/**
* simple_get_link - generic helper to get the target of "fast" symlinks
* @dentry: not used here
* @inode: the symlink inode
* @done: not used here
*
* Generic helper for filesystems to use for symlink inodes where a pointer to
* the symlink target is stored in ->i_link. NOTE: this isn't normally called,
* since as an optimization the path lookup code uses any non-NULL ->i_link
* directly, without calling ->get_link(). But ->get_link() still must be set,
* to mark the inode_operations as being for a symlink.
*
* Return: the symlink target
*/
const char *simple_get_link(struct dentry *dentry, struct inode *inode,
struct delayed_call *done)
{