tracefs: remove stale 'update_gid' code

The 'eventfs_update_gid()' function is no longer called, so remove it
(and the helper function it uses).

Link: https://lore.kernel.org/all/CAHk-=wj+DsZZ=2iTUkJ-Nojs9fjYMvPs1NuoM3yK7aTDtJfPYQ@mail.gmail.com/
Fixes: 8186fff7ab64 ("tracefs/eventfs: Use root and instance inodes as default ownership")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c
index 6b211522a13ec100a0af815798d36536b7239c4a..1c3dd0ad4660eff5127ae8fc1ddecc7631977982 100644 (file)
--- a/fs/tracefs/event_inode.c
+++ b/fs/tracefs/event_inode.c
@@ -281,44 +281,6 @@ static void update_inode_attr(struct dentry *dentry, struct inode *inode,
                inode->i_gid = attr->gid;
 }
 
-static void update_gid(struct eventfs_inode *ei, kgid_t gid, int level)
-{
-       struct eventfs_inode *ei_child;
-
-       /* at most we have events/system/event */
-       if (WARN_ON_ONCE(level > 3))
-               return;
-
-       ei->attr.gid = gid;
-
-       if (ei->entry_attrs) {
-               for (int i = 0; i < ei->nr_entries; i++) {
-                       ei->entry_attrs[i].gid = gid;
-               }
-       }
-
-       /*
-        * Only eventfs_inode with dentries are updated, make sure
-        * all eventfs_inodes are updated. If one of the children
-        * do not have a dentry, this function must traverse it.
-        */
-       list_for_each_entry_srcu(ei_child, &ei->children, list,
-                                srcu_read_lock_held(&eventfs_srcu)) {
-               if (!ei_child->dentry)
-                       update_gid(ei_child, gid, level + 1);
-       }
-}
-
-void eventfs_update_gid(struct dentry *dentry, kgid_t gid)
-{
-       struct eventfs_inode *ei = dentry->d_fsdata;
-       int idx;
-
-       idx = srcu_read_lock(&eventfs_srcu);
-       update_gid(ei, gid, 0);
-       srcu_read_unlock(&eventfs_srcu, idx);
-}
-
 /**
  * create_file - create a file in the tracefs filesystem
  * @name: the name of the file to create.

diff --git a/fs/tracefs/internal.h b/fs/tracefs/internal.h
index 45397df9bb65bffb783329c156e03a2fdb01ebea..91c2bf0b91d9c53d83b6325161787b090f2ba574 100644 (file)
--- a/fs/tracefs/internal.h
+++ b/fs/tracefs/internal.h
@@ -82,7 +82,6 @@ struct inode *tracefs_get_inode(struct super_block *sb);
 struct dentry *eventfs_start_creating(const char *name, struct dentry *parent);
 struct dentry *eventfs_failed_creating(struct dentry *dentry);
 struct dentry *eventfs_end_creating(struct dentry *dentry);
-void eventfs_update_gid(struct dentry *dentry, kgid_t gid);
 void eventfs_set_ei_status_free(struct tracefs_inode *ti, struct dentry *dentry);
 
 #endif /* _TRACEFS_INTERNAL_H */