[PATCH 03/10] fs, kernel: Export d_absolute_path()/find_task_by_pid_ns()/find_task_by_vpid()

[Tetsuo Handa]

CaitSith module which can be loaded using /sbin/insmod needs to be able to
access these functions. TOMOYO module will also access these functions when
CONFIG_SECURITY_TOMOYO=m becomes possible.

Signed-off-by: Tetsuo Handa <penguin-kernel at I-love.SAKURA.ne.jp>
---
 fs/d_path.c  | 1 +
 kernel/pid.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/fs/d_path.c b/fs/d_path.c
index 56a6ee4c6331..417e74414f19 100644
--- a/fs/d_path.c
+++ b/fs/d_path.c
@@ -234,6 +234,7 @@ char *d_absolute_path(const struct path *path,
 		return ERR_PTR(-EINVAL);
 	return extract_string(&b);
 }
+EXPORT_SYMBOL_GPL(d_absolute_path);
 
 static void get_fs_root_rcu(struct fs_struct *fs, struct path *root)
 {
diff --git a/kernel/pid.c b/kernel/pid.c
index 3fbc5e46b721..9e5224d8769c 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -416,11 +416,13 @@ struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
 			 "find_task_by_pid_ns() needs rcu_read_lock() protection");
 	return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
 }
+EXPORT_SYMBOL_GPL(find_task_by_pid_ns);
 
 struct task_struct *find_task_by_vpid(pid_t vnr)
 {
 	return find_task_by_pid_ns(vnr, task_active_pid_ns(current));
 }
+EXPORT_SYMBOL_GPL(find_task_by_vpid);
 
 struct task_struct *find_get_task_by_vpid(pid_t nr)
 {
-- 
2.18.4