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authorMiklos Szeredi <mszeredi@redhat.com>2016-10-04 14:40:45 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2016-10-14 11:16:47 +0200
commit7764235becf3b72bd124400fbffe670531322135 (patch)
tree9377570db6422ab76c10617bea548a1f4e41311e /fs/overlayfs/inode.c
parentd60874cd58fcb21372f2df698c20f8cf2f78fdcb (diff)
ovl: use vfs_get_link()
Resulting in a complete removal of a function basically implementing the inverse of vfs_readlink(). As a bonus, now the proper security hook is also called. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/inode.c')
-rw-r--r--fs/overlayfs/inode.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 50dc214c44f2..bc6d261db669 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -156,22 +156,14 @@ static const char *ovl_get_link(struct dentry *dentry,
struct inode *inode,
struct delayed_call *done)
{
- struct dentry *realdentry;
- struct inode *realinode;
const struct cred *old_cred;
const char *p;
if (!dentry)
return ERR_PTR(-ECHILD);
- realdentry = ovl_dentry_real(dentry);
- realinode = realdentry->d_inode;
-
- if (WARN_ON(!realinode->i_op->get_link))
- return ERR_PTR(-EPERM);
-
old_cred = ovl_override_creds(dentry->d_sb);
- p = realinode->i_op->get_link(realdentry, realinode, done);
+ p = vfs_get_link(ovl_dentry_real(dentry), done);
revert_creds(old_cred);
return p;
}