[PATCH] fix static linking of NFS

Builds on ARM report link problems with common configurations like
statically linked NFS (for nfsroot). The symptom is that __init
section code references __exit section code; that won't work since
the exit sections are discarded (since they can never be called).

The best fix for these particular cases would be an "__init_or_exit"
section annotation.

Signed-off-by: David Brownell <[e-mail]>
Acked-by: Trond Myklebust <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

fs/nfs/direct.c

···
  * nfs_destroy_directcache - destroy the slab cache for nfs_direct_req structures
  *
  */
-void __exit nfs_destroy_directcache(void)
+void nfs_destroy_directcache(void)
 {
 	if (kmem_cache_destroy(nfs_direct_cachep))
 		printk(KERN_INFO "nfs_direct_cache: not all structures were freed\n");

fs/nfs/inode.c

···
 	return 0;
 }
 
-static void __exit nfs_destroy_inodecache(void)
+static void nfs_destroy_inodecache(void)
 {
 	if (kmem_cache_destroy(nfs_inode_cachep))
 		printk(KERN_INFO "nfs_inode_cache: not all structures were freed\n");

fs/nfs/internal.h

···
 
 /* pagelist.c */
 extern int __init nfs_init_nfspagecache(void);
-extern void __exit nfs_destroy_nfspagecache(void);
+extern void nfs_destroy_nfspagecache(void);
 extern int __init nfs_init_readpagecache(void);
-extern void __exit nfs_destroy_readpagecache(void);
+extern void nfs_destroy_readpagecache(void);
 extern int __init nfs_init_writepagecache(void);
-extern void __exit nfs_destroy_writepagecache(void);
+extern void nfs_destroy_writepagecache(void);
 
 #ifdef CONFIG_NFS_DIRECTIO
 extern int __init nfs_init_directcache(void);
-extern void __exit nfs_destroy_directcache(void);
+extern void nfs_destroy_directcache(void);
 #else
 #define nfs_init_directcache() (0)
 #define nfs_destroy_directcache() do {} while(0)

fs/nfs/pagelist.c

···
 	return 0;
 }
 
-void __exit nfs_destroy_nfspagecache(void)
+void nfs_destroy_nfspagecache(void)
 {
 	if (kmem_cache_destroy(nfs_page_cachep))
 		printk(KERN_INFO "nfs_page: not all structures were freed\n");

fs/nfs/read.c

···
 	return 0;
 }
 
-void __exit nfs_destroy_readpagecache(void)
+void nfs_destroy_readpagecache(void)
 {
 	mempool_destroy(nfs_rdata_mempool);
 	if (kmem_cache_destroy(nfs_rdata_cachep))

fs/nfs/write.c

···
 	return 0;
 }
 
-void __exit nfs_destroy_writepagecache(void)
+void nfs_destroy_writepagecache(void)
 {
 	mempool_destroy(nfs_commit_mempool);
 	mempool_destroy(nfs_wdata_mempool);