constify __d_lookup() arguments

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/dcache.c b/fs/dcache.c
index 8f15e8d71bba954ae8e851d0c566c964c7e7f508..93d9f4e1a8eddbafd18e83552a58c33e4157f4cf 100644 (file)
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1919,7 +1919,7 @@ EXPORT_SYMBOL(d_lookup);
  *
  * __d_lookup callers must be commented.
  */
-struct dentry *__d_lookup(struct dentry *parent, struct qstr *name)
+struct dentry *__d_lookup(const struct dentry *parent, const struct qstr *name)
 {
        unsigned int len = name->len;
        unsigned int hash = name->hash;

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 63e96844a8e8119a48793db7bbf994f3de9a3d2e..969086c0330103986f40209ebb12b9d5d810bcd2 100644 (file)
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -295,7 +295,7 @@ extern struct dentry *d_ancestor(struct dentry *, struct dentry *);
 /* appendix may either be NULL or be used for transname suffixes */
 extern struct dentry *d_lookup(struct dentry *, struct qstr *);
 extern struct dentry *d_hash_and_lookup(struct dentry *, struct qstr *);
-extern struct dentry *__d_lookup(struct dentry *, struct qstr *);
+extern struct dentry *__d_lookup(const struct dentry *, const struct qstr *);
 extern struct dentry *__d_lookup_rcu(const struct dentry *parent,
                                const struct qstr *name,
                                unsigned *seq, struct inode *inode);