[PATCH] quota: make some code static

The patch below makes some needlessly global code static.

The most interesting part is that dquot_cachep can become static, since 
it isn't used outside of dquot.c .
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/dquot.c

@@ -128,6 +128,9 @@ static char *quotatypes[] = INITQFNAMES;
 static struct quota_format_type *quota_formats;	/* List of registered formats */
 static struct quota_module_name module_names[] = INIT_QUOTA_MODULE_NAMES;
 
+/* SLAB cache for dquot structures */
+static kmem_cache_t *dquot_cachep;
+
 int register_quota_format(struct quota_format_type *fmt)
 {
 	spin_lock(&dq_list_lock);
@@ -199,7 +202,7 @@ static void put_quota_format(struct quota_format_type *fmt)
 
 static LIST_HEAD(inuse_list);
 static LIST_HEAD(free_dquots);
-unsigned int dq_hash_bits, dq_hash_mask;
+static unsigned int dq_hash_bits, dq_hash_mask;
 static struct hlist_head *dquot_hash;
 
 struct dqstats dqstats;
@@ -1781,9 +1784,6 @@ static ctl_table sys_table[] = {
 	{ .ctl_name = 0 },
 };
 
-/* SLAB cache for dquot structures */
-kmem_cache_t *dquot_cachep;
-
 static int __init dquot_init(void)
 {
 	int i;

fs/quota.c

@@ -136,7 +136,7 @@ static struct super_block *get_super_to_sync(int type)
 	return NULL;
 }
 
-void quota_sync_sb(struct super_block *sb, int type)
+static void quota_sync_sb(struct super_block *sb, int type)
 {
 	int cnt;
 	struct inode *discard[MAXQUOTAS];

include/linux/slab.h

@@ -118,7 +118,6 @@ extern kmem_cache_t	*mm_cachep;
 extern kmem_cache_t	*names_cachep;
 extern kmem_cache_t	*files_cachep;
 extern kmem_cache_t	*filp_cachep;
-extern kmem_cache_t	*dquot_cachep;
 extern kmem_cache_t	*fs_cachep;
 extern kmem_cache_t	*signal_cachep;
 extern kmem_cache_t	*sighand_cachep;