[PATCH 05/10] nfs: Use rcu_barrier() on module unload.

[Jesper Dangaard Brouer]

The exit path unregister and destroys a lot of stuff, but I have not
verified that nfs_free_delegation() cannot start new call_rcu() callbacks.

Signed-off-by: Jesper Dangaard Brouer <hawk@xxxxxxx>
---

 fs/nfs/inode.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 64f8719..40bf2b7 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1518,6 +1518,7 @@ static void __exit exit_nfs_fs(void)
 	unregister_nfs_fs();
 	nfs_fs_proc_exit();
 	nfsiod_stop();
+	rcu_barrier(); /* Wait for completion of call_rcu()'s */
 }
 
 /* Not quite true; I just maintain it */

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/