bcachefs: Switch to .iterate_shared for readdir

We definitely don't need an exclusive inode lock for readdir.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-10-11 15:14:36 -04:00 • committed by Kent Overstreet
commit 821a99b7ba