propagation_next

Name:get the next mount in the propagation tree

Proto:static struct mount *propagation_next(struct mount *m, struct mount *origin)

Type:struct mount

Parameter:

Type	Parameter	Name
struct mount *	m
struct mount *	origin

153

If Not IS_MNT_NEW(m) && Not list_empty - tests whether a list is empty*@head: the list to test. Then Return first_slave(m)

156

When 1 cycle

157

master = slave is on master->mnt_slave_list

159

If master == slave is on master->mnt_slave_list Then

160

next = rn the next shared peer mount of @p

161

Return If next == origin Then NULL Else next

162

Else if next != list of slave mounts Then Return next_slave(m)

166

m = master

**Caller**
Name	Describe
propagate_mount_busy	heck if the mount 'mnt' can be unmounted successfully.@mnt: the mount to be checked for unmount NOTE: unmounting 'mnt' would naturally propagate to all* other mounts its parent propagates to.* Check if any of these mounts that do not have submounts
propagate_mount_unlock	Clear MNT_LOCKED when it can be shown to be safe.* mount_lock lock must be held for write
propagate_umount	llect all mounts that receive propagation from the mount in @list,* and return these additional mounts in the same list.@list: the list of mounts to be unmounted. vfsmount lock must be held for write

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