Commit 03133565 authored by Al Viro's avatar Al Viro
Browse files

propagate_mnt(): fix comment and convert to kernel-doc, while we are at it 



Mountpoint is passed as struct mountpoint *, not struct dentry *
(and called dest_mp, not dest_dentry) since 2013.

Roots of created copies are linked via mnt_hash, not mnt_list since
a bit before the merge into mainline back in 2005.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 0a10217e

fs/pnode.c

+11 −12
Original line number Diff line number Diff line
@@ -253,18 +253,17 @@ static struct mount *find_master(struct mount *m, 
	return last_copy;

}



/*

 * mount 'source_mnt' under the destination 'dest_mnt' at

 * dentry 'dest_dentry'. And propagate that mount to

 * all the peer and slave mounts of 'dest_mnt'.

 * Link all the new mounts into a propagation tree headed at

 * source_mnt. Also link all the new mounts using ->mnt_list

 * headed at source_mnt's ->mnt_list

 *

/**

 * propagate_mnt() - create secondary copies for tree attachment

 * @dest_mnt:    destination mount.

 * @dest_dentry: destination dentry.

 * @dest_mp:     destination mountpoint.

 * @source_mnt:  source mount.

 * @tree_list : list of heads of trees to be attached.

 * @tree_list:   list of secondaries to be attached.

 *

 * Create secondary copies for attaching a tree with root @source_mnt

 * at mount @dest_mnt with mountpoint @dest_mp.  Link all new mounts

 * into a propagation graph.  Set mountpoints for all secondaries,

 * link their roots into @tree_list via ->mnt_hash.

 */

int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,

		  struct mount *source_mnt, struct hlist_head *tree_list)