d_op->d_real() leaves the dentry alone except if the third argument is
non-zero. Unfortunately very difficult to explain to the compiler without
a cast.
Signed-off-by: Miklos Szeredi <mszer...@redhat.com>
Acked-by: Jeff Layton <jlay...@poochiereds.net>
---
include/linux/dcache.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 5ff3e9a4fe5f..5beed7b30561 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -584,9 +584,10 @@ static inline struct dentry *d_real(struct dentry *dentry,
* If dentry is on an union/overlay, then return the underlying, real inode.
* Otherwise return d_inode().
*/
-static inline struct inode *d_real_inode(struct dentry *dentry)
+static inline struct inode *d_real_inode(const struct dentry *dentry)
{
- return d_backing_inode(d_real(dentry, NULL, 0));
+ /* This usage of d_real() results in const dentry */
+ return d_backing_inode(d_real((struct dentry *) dentry, NULL, 0));
}
--
2.5.5
