Merge tag 'eventfs-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull eventfs updates from Steven Rostedt:

 - Remove "lookup" parameter of create_dir_dentry() and
   create_file_dentry(). These functions were called by lookup and the
   readdir logic, where readdir needed it to up the ref count of the
   dentry but the lookup did not. A "lookup" parameter was passed in to
   tell it what to do, but this complicated the code. It is better to
   just always up the ref count and require the caller to decrement it,
   even for lookup.

 - Modify the .iterate_shared callback to not use the dcache_readdir()
   logic and just handle what gets displayed by that one function. This
   removes the need for eventfs to hijack the file->private_data from
   the dcache_readdir() "cursor" pointer, and makes the code a bit more
   sane

 - Use the root and instance inodes for default ownership. Instead of
   walking the dentry tree and updating each dentry gid, use the
   getattr(), setattr() and permission() callbacks to set the ownership
   and permissions using the root or instance as the default

 - Some other optimizations with the eventfs iterate_shared logic

 - Hard-code the inodes for eventfs to the same number for files, and
   the same number for directories

 - Have getdent() not create dentries/inodes in iterate_shared() as now
   it has hard-coded inode numbers

 - Use kcalloc() instead of kzalloc() on a list of elements

 - Fix seq_buf warning and make static work properly.

* tag 'eventfs-v6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  seq_buf: Make DECLARE_SEQ_BUF() usable
  eventfs: Use kcalloc() instead of kzalloc()
  eventfs: Do not create dentries nor inodes in iterate_shared
  eventfs: Have the inodes all for files and directories all be the same
  eventfs: Shortcut eventfs_iterate() by skipping entries already read
  eventfs: Read ei->entries before ei->children in eventfs_iterate()
  eventfs: Do ctx->pos update for all iterations in eventfs_iterate()
  eventfs: Have eventfs_iterate() stop immediately if ei->is_freed is set
  tracefs/eventfs: Use root and instance inodes as default ownership
  eventfs: Stop using dcache_readdir() for getdents()
  eventfs: Remove "lookup" parameter from create_dir/file_dentry()

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