tree 5eddfee10fa2ba535441ad87b9382c8d686b5e07
parent 726447d803802cd0be8f62d17c4a34421781b938
author Jesper Dangaard Brouer <hawk@comx.dk> 1246847367 -0400
committer Theodore Ts'o <tytso@mit.edu> 1246847367 -0400

ext4: Use rcu_barrier() on module unload.

The ext4 module uses rcu_call() thus it should use rcu_barrier()on
module unload.

The kmem cache ext4_pspace_cachep is sometimes free'ed using
call_rcu() callbacks.  Thus, we must wait for completion of call_rcu()
before doing kmem_cache_destroy().

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>