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authorMiklos Szeredi <mszeredi@redhat.com>2016-09-16 12:44:20 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2016-09-16 12:44:20 +0200
commit7b1742eb06ead6d02a6cf3c44587088e5392d1aa (patch)
tree1a3692013066087926df59c7fc739ba680496041 /include/linux/dcache.h
parentc568d68341be7030f5647def68851e469b21ca11 (diff)
vfs: make argument of d_real_inode() const
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 <mszeredi@redhat.com> Acked-by: Jeff Layton <jlayton@poochiereds.net>
Diffstat (limited to 'include/linux/dcache.h')
-rw-r--r--include/linux/dcache.h5
1 files 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));
}