1577 	spinlock_t stat_lock;			/* lock for stat operations */  member
2052 	spin_lock(&sbi->stat_lock);  in inc_valid_block_count()
2073 			spin_unlock(&sbi->stat_lock);  in inc_valid_block_count()
2077 	spin_unlock(&sbi->stat_lock);  in inc_valid_block_count()
2113 	spin_lock(&sbi->stat_lock);  in dec_valid_block_count()
2120 	spin_unlock(&sbi->stat_lock);  in dec_valid_block_count()
2297 	spin_lock(&sbi->stat_lock);  in inc_valid_node_count()
2309 		spin_unlock(&sbi->stat_lock);  in inc_valid_node_count()
2315 		spin_unlock(&sbi->stat_lock);  in inc_valid_node_count()
2321 	spin_unlock(&sbi->stat_lock);  in inc_valid_node_count()
2346 	spin_lock(&sbi->stat_lock);  in dec_valid_node_count()
2357 	spin_unlock(&sbi->stat_lock);  in dec_valid_node_count()