smb: client: don't break parent lease on mkdir

When creating a new directory, if we have its parent cached (i.e. we
have a lease), set ParentLeaseKey for the target new dir, while also
already requesting a lease for it.

If it's possible to cache the new dir, try a single Create request first
(without Close).  On success, cache it, otherwise, fallback to previous
behaviour (compound Create + Close).

Add some helpers to cached_dir:
- can_cache_dir()
- init_cached_dir() - just allocate the object in the simplest way
- add_cached_dir() - turn cfid available, but up to callers to make it
  valid

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>

0 files changed, 0 insertions, 0 deletions