1 files changed, 10 insertions, 30 deletions

diff --git a/net/tipc/ref.c b/net/tipc/ref.c
index 5cada0e38e0..3d4ecd754ee 100644
--- a/net/tipc/ref.c
+++ b/net/tipc/ref.c
@@ -89,7 +89,7 @@ struct ref_table {
 
 static struct ref_table tipc_ref_table;
 
-static DEFINE_RWLOCK(ref_table_lock);
+static DEFINE_SPINLOCK(ref_table_lock);
 
 /**
  * tipc_ref_table_init - create reference table for objects
@@ -126,9 +126,6 @@ int tipc_ref_table_init(u32 requested_size, u32 start)
  */
 void tipc_ref_table_stop(void)
 {
-	if (!tipc_ref_table.entries)
-		return;
-
 	vfree(tipc_ref_table.entries);
 	tipc_ref_table.entries = NULL;
 }
@@ -153,16 +150,16 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock)
 	struct reference *entry = NULL;
 
 	if (!object) {
-		err("Attempt to acquire reference to non-existent object\n");
+		pr_err("Attempt to acquire ref. to non-existent obj\n");
 		return 0;
 	}
 	if (!tipc_ref_table.entries) {
-		err("Reference table not found during acquisition attempt\n");
+		pr_err("Ref. table not found in acquisition attempt\n");
 		return 0;
 	}
 
 	/* take a free entry, if available; otherwise initialize a new entry */
-	write_lock_bh(&ref_table_lock);
+	spin_lock_bh(&ref_table_lock);
 	if (tipc_ref_table.first_free) {
 		index = tipc_ref_table.first_free;
 		entry = &(tipc_ref_table.entries[index]);
@@ -178,7 +175,7 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock)
 	} else {
 		ref = 0;
 	}
-	write_unlock_bh(&ref_table_lock);
+	spin_unlock_bh(&ref_table_lock);
 
 	/*
 	 * Grab the lock so no one else can modify this entry
@@ -211,7 +208,7 @@ void tipc_ref_discard(u32 ref)
 	u32 index_mask;
 
 	if (!tipc_ref_table.entries) {
-		err("Reference table not found during discard attempt\n");
+		pr_err("Ref. table not found during discard attempt\n");
 		return;
 	}
 
@@ -219,14 +216,14 @@ void tipc_ref_discard(u32 ref)
 	index = ref & index_mask;
 	entry = &(tipc_ref_table.entries[index]);
 
-	write_lock_bh(&ref_table_lock);
+	spin_lock_bh(&ref_table_lock);
 
 	if (!entry->object) {
-		err("Attempt to discard reference to non-existent object\n");
+		pr_err("Attempt to discard ref. to non-existent obj\n");
 		goto exit;
 	}
 	if (entry->ref != ref) {
-		err("Attempt to discard non-existent reference\n");
+		pr_err("Attempt to discard non-existent reference\n");
 		goto exit;
 	}
 
@@ -245,7 +242,7 @@ void tipc_ref_discard(u32 ref)
 	tipc_ref_table.last_free = index;
 
 exit:
-	write_unlock_bh(&ref_table_lock);
+	spin_unlock_bh(&ref_table_lock);
 }
 
 /**
@@ -267,20 +264,3 @@ void *tipc_ref_lock(u32 ref)
 	}
 	return NULL;
 }
-
-
-/**
- * tipc_ref_deref - return pointer referenced object (without locking it)
- */
-void *tipc_ref_deref(u32 ref)
-{
-	if (likely(tipc_ref_table.entries)) {
-		struct reference *entry;
-
-		entry = &tipc_ref_table.entries[ref &
-						tipc_ref_table.index_mask];
-		if (likely(entry->ref == ref))
-			return entry->object;
-	}
-	return NULL;
-}