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TTY: devpts, document devpts inode operations

Add kernel-doc texts for some devpts functions, i.e. document them.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1dcb8e6d1c23f2e021639199fdf64d5b42689207 1 parent f11afb6
Jiri Slaby authored gregkh committed
Showing with 21 additions and 0 deletions.
  1. +21 −0 fs/devpts/inode.c
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21 fs/devpts/inode.c
@@ -545,6 +545,15 @@ void devpts_kill_index(struct inode *ptmx_inode, int idx)
mutex_unlock(&allocated_ptys_lock);
}
+/**
+ * devpts_pty_new -- create a new inode in /dev/pts/
+ * @ptmx_inode: inode of the master
+ * @device: major+minor of the node to be created
+ * @index: used as a name of the node
+ * @priv: what's given back by devpts_get_priv
+ *
+ * The created inode is returned. Remove it from /dev/pts/ by devpts_pty_kill.
+ */
struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
void *priv)
{
@@ -585,6 +594,12 @@ struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
return inode;
}
+/**
+ * devpts_get_priv -- get private data for a slave
+ * @pts_inode: inode of the slave
+ *
+ * Returns whatever was passed as priv in devpts_pty_new for a given inode.
+ */
void *devpts_get_priv(struct inode *pts_inode)
{
struct dentry *dentry;
@@ -605,6 +620,12 @@ void *devpts_get_priv(struct inode *pts_inode)
return priv;
}
+/**
+ * devpts_pty_kill -- remove inode form /dev/pts/
+ * @inode: inode of the slave to be removed
+ *
+ * This is an inverse operation of devpts_pty_new.
+ */
void devpts_pty_kill(struct inode *inode)
{
struct super_block *sb = pts_sb_from_inode(inode);
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