ceph: remove dentry_lru file from debugfs

The file shows all dentries in cephfs mount. It's not very useful.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index abdf98d..98365e7 100644 (file)
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -139,23 +139,6 @@ static int caps_show(struct seq_file *s, void *p)
        return 0;
 }
 
-static int dentry_lru_show(struct seq_file *s, void *ptr)
-{
-       struct ceph_fs_client *fsc = s->private;
-       struct ceph_mds_client *mdsc = fsc->mdsc;
-       struct ceph_dentry_info *di;
-
-       spin_lock(&mdsc->dentry_lru_lock);
-       list_for_each_entry(di, &mdsc->dentry_lru, lru) {
-               struct dentry *dentry = di->dentry;
-               seq_printf(s, "%p %p\t%pd\n",
-                          di, dentry, dentry);
-       }
-       spin_unlock(&mdsc->dentry_lru_lock);
-
-       return 0;
-}
-
 static int mds_sessions_show(struct seq_file *s, void *ptr)
 {
        struct ceph_fs_client *fsc = s->private;
@@ -195,7 +178,6 @@ static int mds_sessions_show(struct seq_file *s, void *ptr)
 CEPH_DEFINE_SHOW_FUNC(mdsmap_show)
 CEPH_DEFINE_SHOW_FUNC(mdsc_show)
 CEPH_DEFINE_SHOW_FUNC(caps_show)
-CEPH_DEFINE_SHOW_FUNC(dentry_lru_show)
 CEPH_DEFINE_SHOW_FUNC(mds_sessions_show)
 
 
@@ -231,7 +213,6 @@ void ceph_fs_debugfs_cleanup(struct ceph_fs_client *fsc)
        debugfs_remove(fsc->debugfs_mds_sessions);
        debugfs_remove(fsc->debugfs_caps);
        debugfs_remove(fsc->debugfs_mdsc);
-       debugfs_remove(fsc->debugfs_dentry_lru);
 }
 
 int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
@@ -291,14 +272,6 @@ int ceph_fs_debugfs_init(struct ceph_fs_client *fsc)
        if (!fsc->debugfs_caps)
                goto out;
 
-       fsc->debugfs_dentry_lru = debugfs_create_file("dentry_lru",
-                                       0400,
-                                       fsc->client->debugfs_dir,
-                                       fsc,
-                                       &dentry_lru_show_fops);
-       if (!fsc->debugfs_dentry_lru)
-               goto out;
-
        return 0;
 
 out: