[RFC PATCH 23/35] vfs: simplify dentry_open()

[Miklos Szeredi]

dentry_open() can now just call path_open().

Signed-off-by: Miklos Szeredi <mszer...@redhat.com>
---
 fs/open.c | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/fs/open.c b/fs/open.c
index 1d1a52908b0f..442088ca30f9 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -891,31 +891,13 @@ EXPORT_SYMBOL(path_open);
 struct file *dentry_open(const struct path *path, int flags,
                         const struct cred *cred)
 {
-       int error;
-       struct file *f;
-
        validate_creds(cred);
 
        /* We must always pass in a valid mount pointer. */
        BUG_ON(!path->mnt);
 
-       f = get_empty_filp();
-       if (!IS_ERR(f)) {
-               f->f_flags = flags;
-               error = vfs_open(path, f, cred);
-               if (!error) {
-                       /* from now on we need fput() to dispose of f */
-                       error = open_check_o_direct(f);
-                       if (error) {
-                               fput(f);
-                               f = ERR_PTR(error);
-                       }
-               } else { 
-                       put_filp(f);
-                       f = ERR_PTR(error);
-               }
-       }
-       return f;
+       return path_open(path, flags, d_backing_inode(path->dentry), cred,
+                        true);
 }
 EXPORT_SYMBOL(dentry_open);
 
-- 
2.14.3