From: Chengguang Xu <cgxu519@gmx.com>
Date: Sat, 10 Mar 2018 20:32:05 +0800
Subject: libceph, ceph: add __init attribution to init funcitons
Git-commit: 57a35dfb522c8bbac622d49f5217906f9b5eceb0
Patch-mainline: v4.17-rc1
References: FATE#324714

Add __init attribution to the functions which are called only once
during initiating/registering operations and deleting unnecessary
symbol exports.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
 fs/ceph/cache.c       |    2 +-
 net/ceph/crypto.c     |    6 ++++--
 net/ceph/debugfs.c    |    7 ++-----
 net/ceph/messenger.c  |    4 +---
 net/ceph/osd_client.c |    4 +---
 5 files changed, 9 insertions(+), 14 deletions(-)

--- a/fs/ceph/cache.c
+++ b/fs/ceph/cache.c
@@ -71,7 +71,7 @@ static const struct fscache_cookie_def c
 	.get_key	= ceph_fscache_session_get_key,
 };
 
-int ceph_fscache_register(void)
+int __init ceph_fscache_register(void)
 {
 	return fscache_register_netfs(&ceph_cache_netfs);
 }
--- a/net/ceph/crypto.c
+++ b/net/ceph/crypto.c
@@ -346,10 +346,12 @@ struct key_type key_type_ceph = {
 	.destroy	= ceph_key_destroy,
 };
 
-int ceph_crypto_init(void) {
+int __init ceph_crypto_init(void)
+{
 	return register_key_type(&key_type_ceph);
 }
 
-void ceph_crypto_shutdown(void) {
+void ceph_crypto_shutdown(void)
+{
 	unregister_key_type(&key_type_ceph);
 }
--- a/net/ceph/debugfs.c
+++ b/net/ceph/debugfs.c
@@ -388,7 +388,7 @@ CEPH_DEFINE_SHOW_FUNC(monc_show)
 CEPH_DEFINE_SHOW_FUNC(osdc_show)
 CEPH_DEFINE_SHOW_FUNC(client_options_show)
 
-int ceph_debugfs_init(void)
+int __init ceph_debugfs_init(void)
 {
 	ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
 	if (!ceph_debugfs_dir)
@@ -476,7 +476,7 @@ void ceph_debugfs_client_cleanup(struct
 
 #else  /* CONFIG_DEBUG_FS */
 
-int ceph_debugfs_init(void)
+int __init ceph_debugfs_init(void)
 {
 	return 0;
 }
@@ -495,6 +495,3 @@ void ceph_debugfs_client_cleanup(struct
 }
 
 #endif  /* CONFIG_DEBUG_FS */
-
-EXPORT_SYMBOL(ceph_debugfs_init);
-EXPORT_SYMBOL(ceph_debugfs_cleanup);
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -276,7 +276,7 @@ static void _ceph_msgr_exit(void)
 	ceph_msgr_slab_exit();
 }
 
-int ceph_msgr_init(void)
+int __init ceph_msgr_init(void)
 {
 	if (ceph_msgr_slab_init())
 		return -ENOMEM;
@@ -298,7 +298,6 @@ int ceph_msgr_init(void)
 
 	return -ENOMEM;
 }
-EXPORT_SYMBOL(ceph_msgr_init);
 
 void ceph_msgr_exit(void)
 {
@@ -306,7 +305,6 @@ void ceph_msgr_exit(void)
 
 	_ceph_msgr_exit();
 }
-EXPORT_SYMBOL(ceph_msgr_exit);
 
 void ceph_msgr_flush(void)
 {
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -5062,7 +5062,7 @@ int ceph_osdc_writepages(struct ceph_osd
 }
 EXPORT_SYMBOL(ceph_osdc_writepages);
 
-int ceph_osdc_setup(void)
+int __init ceph_osdc_setup(void)
 {
 	size_t size = sizeof(struct ceph_osd_request) +
 	    CEPH_OSD_SLAB_OPS * sizeof(struct ceph_osd_req_op);
@@ -5073,7 +5073,6 @@ int ceph_osdc_setup(void)
 
 	return ceph_osd_request_cache ? 0 : -ENOMEM;
 }
-EXPORT_SYMBOL(ceph_osdc_setup);
 
 void ceph_osdc_cleanup(void)
 {
@@ -5081,7 +5080,6 @@ void ceph_osdc_cleanup(void)
 	kmem_cache_destroy(ceph_osd_request_cache);
 	ceph_osd_request_cache = NULL;
 }
-EXPORT_SYMBOL(ceph_osdc_cleanup);
 
 /*
  * handle incoming message