vfs: replace calling i_op->readlink with vfs_readlink()

Also check d_is_symlink() in callers instead of inode->i_op->readlink
because following patches will allow NULL ->readlink for symlinks.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 8ca642fe9b21..b854f02c1c36 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1451,7 +1451,6 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
 __be32
 nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
 {
-        struct inode    *inode;
         mm_segment_t    oldfs;
         __be32          err;
         int             host_err;
@@ -1463,10 +1462,9 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
 
         path.mnt = fhp->fh_export->ex_path.mnt;
         path.dentry = fhp->fh_dentry;
-        inode = d_inode(path.dentry);
 
         err = nfserr_inval;
-        if (!inode->i_op->readlink)
+        if (!d_is_symlink(path.dentry))
                 goto out;
 
         touch_atime(&path);
@@ -1475,7 +1473,7 @@ nfsd_readlink(struct svc_rqst *rqstp, struct svc_fh *fhp, char *buf, int *lenp)
          */
 
         oldfs = get_fs(); set_fs(KERNEL_DS);
-        host_err = inode->i_op->readlink(path.dentry, (char __user *)buf, *lenp);
+        host_err = vfs_readlink(path.dentry, (char __user *)buf, *lenp);
         set_fs(oldfs);
 
         if (host_err < 0)