Export lives_below_in_same_fs() for use in union mount code.
Signed-off-by: Jan Blunck <jblunck@xxxxxxx>
---
fs/namespace.c | 3 ++-
include/linux/mount.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -793,7 +793,7 @@ static bool permit_mount(struct nameidat
return true;
}
-static int lives_below_in_same_fs(struct dentry *d, struct dentry *dentry)
+int lives_below_in_same_fs(struct dentry *d, struct dentry *dentry)
{
while (1) {
if (d == dentry)
@@ -803,6 +803,7 @@ static int lives_below_in_same_fs(struct
d = d->d_parent;
}
}
+EXPORT_SYMBOL_GPL(lives_below_in_same_fs);
struct vfsmount *copy_tree(struct vfsmount *mnt, struct dentry *dentry,
int flag, uid_t owner)
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -106,6 +106,7 @@ extern void shrink_submounts(struct vfsm
extern spinlock_t vfsmount_lock;
extern dev_t name_to_dev_t(char *name);
+extern int lives_below_in_same_fs(struct dentry *, struct dentry *);
#endif
#endif /* _LINUX_MOUNT_H */
--
-
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