vfs: remove dget() from dentry_unhash()

This serves no useful purpose that I can discern.  All callers (rename,
rmdir) hold their own reference to the dentry.

A quick audit of all file systems showed no relevant checks on the value
of d_count in vfs_rmdir/vfs_rename_dir paths.

Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index d5f8c8a1902..b1c72a92c14 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -414,7 +414,6 @@ again:
                 mutex_unlock(&hpfs_i(inode)->i_parent_mutex);
                 dentry_unhash(dentry);
                 if (!d_unhashed(dentry)) {
-                        dput(dentry);
                         hpfs_unlock(dir->i_sb);
                         return -ENOSPC;
                 }
@@ -422,7 +421,6 @@ again:
                     !S_ISREG(inode->i_mode) ||
                     get_write_access(inode)) {
                         d_rehash(dentry);
-                        dput(dentry);
                 } else {
                         struct iattr newattrs;
                         /*printk("HPFS: truncating file before delete.\n");*/
@@ -430,7 +428,6 @@ again:
                         newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
                         err = notify_change(dentry, &newattrs);
                         put_write_access(inode);
-                        dput(dentry);
                         if (!err)
                                 goto again;
                 }