fs: change d_hash for rcu-walk

Change d_hash so it may be called from lock-free RCU lookups. See similar
patch for d_compare for details.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/namei.c b/fs/namei.c
index 4ff7ca530533..f3b5ca404659 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -731,7 +731,8 @@ static int do_lookup(struct nameidata *nd, struct qstr *name,
          * to use its own hash..
          */
         if (nd->path.dentry->d_op && nd->path.dentry->d_op->d_hash) {
-                int err = nd->path.dentry->d_op->d_hash(nd->path.dentry, name);
+                int err = nd->path.dentry->d_op->d_hash(nd->path.dentry,
+                                nd->path.dentry->d_inode, name);
                 if (err < 0)
                         return err;
         }
@@ -1134,7 +1135,7 @@ static struct dentry *__lookup_hash(struct qstr *name,
          * to use its own hash..
          */
         if (base->d_op && base->d_op->d_hash) {
-                err = base->d_op->d_hash(base, name);
+                err = base->d_op->d_hash(base, inode, name);
                 dentry = ERR_PTR(err);
                 if (err < 0)
                         goto out;