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sunrpc: Use rcu_barrier() on unload.

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

Have not verified that the possibility for new call_rcu() callbacks
has been disabled.  As a hint for checking, the functions calling
call_rcu() (unx_destroy_cred and generic_destroy_cred) are
registered as crdestroy function pointer in struct rpc_credops.

Acked-by: Paul E. McKenney <[email protected]>
Acked-by: Trond Myklebust <[email protected]>
Signed-off-by: Jesper Dangaard Brouer <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Jesper Dangaard Brouer 2009-06-26 10:45:58 +00:00 • committed by David S. Miller
commit 75de874f5c
1 changed files with 1 additions and 0 deletions
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1
net/sunrpc/sunrpc_syms.c
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@ -66,6 +66,7 @@ cleanup_sunrpc(void)
#ifdef CONFIG_PROC_FS
rpc_proc_exit();
#endif
rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
MODULE_LICENSE("GPL");
module_init(init_sunrpc);