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-rw-r--r--fs/overlayfs/inode.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 1b4b9c5e51b7..235ad42afb57 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -140,12 +140,12 @@ struct ovl_link_data {
void *cookie;
};
-static void *ovl_follow_link(struct dentry *dentry, struct nameidata *nd)
+static const char *ovl_follow_link(struct dentry *dentry, void **cookie, struct nameidata *nd)
{
- void *ret;
struct dentry *realdentry;
struct inode *realinode;
struct ovl_link_data *data = NULL;
+ const char *ret;
realdentry = ovl_dentry_real(dentry);
realinode = realdentry->d_inode;
@@ -160,19 +160,21 @@ static void *ovl_follow_link(struct dentry *dentry, struct nameidata *nd)
data->realdentry = realdentry;
}
- ret = realinode->i_op->follow_link(realdentry, nd);
- if (IS_ERR(ret)) {
+ ret = realinode->i_op->follow_link(realdentry, cookie, nd);
+ if (IS_ERR_OR_NULL(ret)) {
kfree(data);
return ret;
}
if (data)
- data->cookie = ret;
+ data->cookie = *cookie;
- return data;
+ *cookie = data;
+
+ return ret;
}
-static void ovl_put_link(struct dentry *dentry, struct nameidata *nd, void *c)
+static void ovl_put_link(struct dentry *dentry, void *c)
{
struct inode *realinode;
struct ovl_link_data *data = c;
@@ -181,7 +183,7 @@ static void ovl_put_link(struct dentry *dentry, struct nameidata *nd, void *c)
return;
realinode = data->realdentry->d_inode;
- realinode->i_op->put_link(data->realdentry, nd, data->cookie);
+ realinode->i_op->put_link(data->realdentry, data->cookie);
kfree(data);
}