[PATCH v2 3/6] ovl: Break out ovl_e_path_lowerdata() from ovl_path_lowerdata()

[Alexander Larsson <alexl@xxxxxxxxxx>]

This will be needed later when getting the lowerdata path from the
ovl_entry in ovl_lookup() before the dentry is set up.

Signed-off-by: Alexander Larsson <alexl@xxxxxxxxxx>
Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>
---
 fs/overlayfs/overlayfs.h | 1 +
 fs/overlayfs/util.c      | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 6ce1c7906bb9..a4867ff97115 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -391,6 +391,7 @@ void ovl_path_upper(struct dentry *dentry, struct path *path);
 void ovl_path_lower(struct dentry *dentry, struct path *path);
 void ovl_path_lowerdata(struct dentry *dentry, struct path *path);
 void ovl_i_path_real(struct inode *inode, struct path *path);
+void ovl_e_path_lowerdata(struct ovl_entry *oe, struct path *path);
 void ovl_e_path_real(struct ovl_fs *ofs, struct ovl_entry *oe,
 		     struct dentry *upperdentry, struct path *path);
 enum ovl_path_type ovl_path_real(struct dentry *dentry, struct path *path);
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index c32252153e5e..74077ef50bb3 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -222,9 +222,9 @@ void ovl_path_lower(struct dentry *dentry, struct path *path)
 	}
 }
 
-void ovl_path_lowerdata(struct dentry *dentry, struct path *path)
+void ovl_e_path_lowerdata(struct ovl_entry *oe,
+			  struct path *path)
 {
-	struct ovl_entry *oe = OVL_E(dentry);
 	struct ovl_path *lowerdata = ovl_lowerdata(oe);
 	struct dentry *lowerdata_dentry = ovl_lowerdata_dentry(oe);
 
@@ -242,6 +242,11 @@ void ovl_path_lowerdata(struct dentry *dentry, struct path *path)
 	}
 }
 
+void ovl_path_lowerdata(struct dentry *dentry, struct path *path)
+{
+	return ovl_e_path_lowerdata(OVL_E(dentry), path);
+}
+
 enum ovl_path_type ovl_path_real(struct dentry *dentry, struct path *path)
 {
 	enum ovl_path_type type = ovl_path_type(dentry);
-- 
2.39.2