fs/kernfs: remove the double check of dentry->inode

In both kernfs_node_from_dentry() and in
kernfs_dentry_node(), we will check the dentry->inode
is NULL or not, which is superfluous.

So remove the check in kernfs_node_from_dentry().

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hui Su <sh_def@163.com>
Link: https://lore.kernel.org/r/20201113132143.GA119541@rlk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
index ea3c951..7a53eed 100644 (file)
--- a/fs/kernfs/dir.c
+++ b/fs/kernfs/dir.c
@@ -604,8 +604,7 @@ const struct dentry_operations kernfs_dops = {
  */
 struct kernfs_node *kernfs_node_from_dentry(struct dentry *dentry)
 {
-       if (dentry->d_sb->s_op == &kernfs_sops &&
-           !d_really_is_negative(dentry))
+       if (dentry->d_sb->s_op == &kernfs_sops)
                return kernfs_dentry_node(dentry);
        return NULL;
 }