From: Jesper Dangaard Brouer <hawk@comx.dk>
Date: Mon, 6 Jul 2009 02:29:27 +0000 (-0400)
Subject: ext4: Use rcu_barrier() on module unload.
X-Git-Tag: v2.6.31-rc3~1^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3e03f9ca6a2599db1823bb0ea24e0845219a0e69;p=pandora-kernel.git

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>
---

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