JFS: make some symbols static

The patch below makes some JFS symbols that are only used inside the
file they are defined in static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>

fs/jfs/jfs_logmgr.c

@@ -161,9 +161,9 @@ do {						\
 /*
  * Global list of active external journals
  */
-LIST_HEAD(jfs_external_logs);
-struct jfs_log *dummy_log = NULL;
-DECLARE_MUTEX(jfs_log_sem);
+static LIST_HEAD(jfs_external_logs);
+static struct jfs_log *dummy_log = NULL;
+static DECLARE_MUTEX(jfs_log_sem);
 
 /*
  * external references
@@ -205,7 +205,7 @@ static int lmLogSync(struct jfs_log * log, int nosyncwait);
  *	statistics
  */
 #ifdef CONFIG_JFS_STATISTICS
-struct lmStat {
+static struct lmStat {
 	uint commit;		/* # of commit */
 	uint pagedone;		/* # of page written */
 	uint submitted;		/* # of pages submitted */

fs/jfs/jfs_metapage.c

@@ -31,7 +31,7 @@
 static spinlock_t meta_lock = SPIN_LOCK_UNLOCKED;
 
 #ifdef CONFIG_JFS_STATISTICS
-struct {
+static struct {
 	uint	pagealloc;	/* # of page allocations */
 	uint	pagefree;	/* # of page frees */
 	uint	lockwait;	/* # of sleeping lock_metapage() calls */

fs/jfs/jfs_txnmgr.c

@@ -80,7 +80,7 @@ static struct {
 int jfs_tlocks_low;		/* Indicates low number of available tlocks */
 
 #ifdef CONFIG_JFS_STATISTICS
-struct {
+static struct {
 	uint txBegin;
 	uint txBegin_barrier;
 	uint txBegin_lockslow;
@@ -152,7 +152,7 @@ static inline void TXN_SLEEP_DROP_LOCK(wait_queue_head_t * event)
 /*
  *      statistics
  */
-struct {
+static struct {
 	tid_t maxtid;		/* 4: biggest tid ever used */
 	lid_t maxlid;		/* 4: biggest lid ever used */
 	int ntid;		/* 4: # of transactions performed */