2005-04-17 06:20:36 +08:00
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/*
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* linux/net/sunrpc/sunrpc_syms.c
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*
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* Symbols exported by the sunrpc module.
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*
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* Copyright (C) 1997 Olaf Kirch <okir@monad.swb.de>
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/uio.h>
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#include <linux/unistd.h>
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#include <linux/init.h>
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#include <linux/sunrpc/sched.h>
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#include <linux/sunrpc/clnt.h>
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#include <linux/sunrpc/svc.h>
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#include <linux/sunrpc/svcsock.h>
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#include <linux/sunrpc/auth.h>
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#include <linux/workqueue.h>
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#include <linux/sunrpc/rpc_pipe_fs.h>
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2007-09-11 01:47:31 +08:00
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#include <linux/sunrpc/xprtsock.h>
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2005-04-17 06:20:36 +08:00
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2007-02-14 16:33:13 +08:00
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extern struct cache_detail ip_map_cache, unix_gid_cache;
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2005-04-17 06:20:36 +08:00
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2009-12-04 04:58:56 +08:00
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extern void cleanup_rpcb_clnt(void);
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2005-04-17 06:20:36 +08:00
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static int __init
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init_sunrpc(void)
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{
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int err = register_rpc_pipefs();
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if (err)
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goto out;
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2007-05-09 17:34:51 +08:00
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err = rpc_init_mempool();
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2010-08-01 02:29:07 +08:00
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if (err)
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goto out2;
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err = rpcauth_init_module();
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if (err)
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goto out3;
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2005-04-17 06:20:36 +08:00
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#ifdef RPC_DEBUG
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rpc_register_sysctl();
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#endif
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#ifdef CONFIG_PROC_FS
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rpc_proc_init();
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#endif
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sunrpc: make the cache cleaner workqueue deferrable
This patch makes the cache_cleaner workqueue deferrable, to prevent
unnecessary system wake-ups, which is very important for embedded
battery-powered devices.
do_cache_clean() is called every 30 seconds at the moment, and often
makes the system wake up from its power-save sleep state. With this
change, when the workqueue uses a deferrable timer, the
do_cache_clean() invocation will be delayed and combined with the
closest "real" wake-up. This improves the power consumption situation.
Note, I tried to create a DECLARE_DELAYED_WORK_DEFERRABLE() helper
macro, similar to DECLARE_DELAYED_WORK(), but failed because of the
way the timer wheel core stores the deferrable flag (it is the
LSBit in the time->base pointer). My attempt to define a static
variable with this bit set ended up with the "initializer element is
not constant" error.
Thus, I have to use run-time initialization, so I created a new
cache_initialize() function which is called once when sunrpc is
being initialized.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2010-07-01 23:05:56 +08:00
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cache_initialize();
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2005-04-17 06:20:36 +08:00
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cache_register(&ip_map_cache);
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2007-02-14 16:33:13 +08:00
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cache_register(&unix_gid_cache);
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2007-12-31 11:07:17 +08:00
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svc_init_xprt_sock(); /* svc sock transport */
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init_socket_xprt(); /* clnt sock transport */
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2010-08-01 02:29:07 +08:00
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return 0;
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out3:
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rpc_destroy_mempool();
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out2:
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unregister_rpc_pipefs();
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2005-04-17 06:20:36 +08:00
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out:
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return err;
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}
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static void __exit
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cleanup_sunrpc(void)
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{
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2009-12-04 04:58:56 +08:00
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cleanup_rpcb_clnt();
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2007-06-26 05:11:20 +08:00
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rpcauth_remove_module();
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2006-12-06 05:35:51 +08:00
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cleanup_socket_xprt();
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2007-12-31 11:07:17 +08:00
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svc_cleanup_xprt_sock();
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2005-04-17 06:20:36 +08:00
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unregister_rpc_pipefs();
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rpc_destroy_mempool();
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2007-11-09 05:09:59 +08:00
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cache_unregister(&ip_map_cache);
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cache_unregister(&unix_gid_cache);
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2005-04-17 06:20:36 +08:00
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#ifdef RPC_DEBUG
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rpc_unregister_sysctl();
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#endif
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#ifdef CONFIG_PROC_FS
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rpc_proc_exit();
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#endif
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2009-06-26 18:45:58 +08:00
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rcu_barrier(); /* Wait for completion of call_rcu()'s */
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2005-04-17 06:20:36 +08:00
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}
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MODULE_LICENSE("GPL");
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2009-08-21 20:17:56 +08:00
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fs_initcall(init_sunrpc); /* Ensure we're initialised before nfs */
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2005-04-17 06:20:36 +08:00
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module_exit(cleanup_sunrpc);
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