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-rw-r--r--fs/inode.c17
1 files changed, 7 insertions, 10 deletions
diff --git a/fs/inode.c b/fs/inode.c
index ae2727ab0c3a..efc43979709f 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -103,7 +103,6 @@ static DECLARE_RWSEM(iprune_sem);
103struct inodes_stat_t inodes_stat; 103struct inodes_stat_t inodes_stat;
104 104
105static struct percpu_counter nr_inodes __cacheline_aligned_in_smp; 105static struct percpu_counter nr_inodes __cacheline_aligned_in_smp;
106static struct percpu_counter nr_inodes_unused __cacheline_aligned_in_smp;
107 106
108static struct kmem_cache *inode_cachep __read_mostly; 107static struct kmem_cache *inode_cachep __read_mostly;
109 108
@@ -114,7 +113,7 @@ static inline int get_nr_inodes(void)
114 113
115static inline int get_nr_inodes_unused(void) 114static inline int get_nr_inodes_unused(void)
116{ 115{
117 return percpu_counter_sum_positive(&nr_inodes_unused); 116 return inodes_stat.nr_unused;
118} 117}
119 118
120int get_nr_dirty_inodes(void) 119int get_nr_dirty_inodes(void)
@@ -132,7 +131,6 @@ int proc_nr_inodes(ctl_table *table, int write,
132 void __user *buffer, size_t *lenp, loff_t *ppos) 131 void __user *buffer, size_t *lenp, loff_t *ppos)
133{ 132{
134 inodes_stat.nr_inodes = get_nr_inodes(); 133 inodes_stat.nr_inodes = get_nr_inodes();
135 inodes_stat.nr_unused = get_nr_inodes_unused();
136 return proc_dointvec(table, write, buffer, lenp, ppos); 134 return proc_dointvec(table, write, buffer, lenp, ppos);
137} 135}
138#endif 136#endif
@@ -335,7 +333,7 @@ static void inode_lru_list_add(struct inode *inode)
335{ 333{
336 if (list_empty(&inode->i_lru)) { 334 if (list_empty(&inode->i_lru)) {
337 list_add(&inode->i_lru, &inode_lru); 335 list_add(&inode->i_lru, &inode_lru);
338 percpu_counter_inc(&nr_inodes_unused); 336 inodes_stat.nr_unused++;
339 } 337 }
340} 338}
341 339
@@ -343,7 +341,7 @@ static void inode_lru_list_del(struct inode *inode)
343{ 341{
344 if (!list_empty(&inode->i_lru)) { 342 if (!list_empty(&inode->i_lru)) {
345 list_del_init(&inode->i_lru); 343 list_del_init(&inode->i_lru);
346 percpu_counter_dec(&nr_inodes_unused); 344 inodes_stat.nr_unused--;
347 } 345 }
348} 346}
349 347
@@ -513,7 +511,7 @@ void evict_inodes(struct super_block *sb)
513 list_move(&inode->i_lru, &dispose); 511 list_move(&inode->i_lru, &dispose);
514 list_del_init(&inode->i_wb_list); 512 list_del_init(&inode->i_wb_list);
515 if (!(inode->i_state & (I_DIRTY | I_SYNC))) 513 if (!(inode->i_state & (I_DIRTY | I_SYNC)))
516 percpu_counter_dec(&nr_inodes_unused); 514 inodes_stat.nr_unused--;
517 } 515 }
518 spin_unlock(&inode_lock); 516 spin_unlock(&inode_lock);
519 517
@@ -554,7 +552,7 @@ int invalidate_inodes(struct super_block *sb)
554 list_move(&inode->i_lru, &dispose); 552 list_move(&inode->i_lru, &dispose);
555 list_del_init(&inode->i_wb_list); 553 list_del_init(&inode->i_wb_list);
556 if (!(inode->i_state & (I_DIRTY | I_SYNC))) 554 if (!(inode->i_state & (I_DIRTY | I_SYNC)))
557 percpu_counter_dec(&nr_inodes_unused); 555 inodes_stat.nr_unused--;
558 } 556 }
559 spin_unlock(&inode_lock); 557 spin_unlock(&inode_lock);
560 558
@@ -616,7 +614,7 @@ static void prune_icache(int nr_to_scan)
616 if (atomic_read(&inode->i_count) || 614 if (atomic_read(&inode->i_count) ||
617 (inode->i_state & ~I_REFERENCED)) { 615 (inode->i_state & ~I_REFERENCED)) {
618 list_del_init(&inode->i_lru); 616 list_del_init(&inode->i_lru);
619 percpu_counter_dec(&nr_inodes_unused); 617 inodes_stat.nr_unused--;
620 continue; 618 continue;
621 } 619 }
622 620
@@ -650,7 +648,7 @@ static void prune_icache(int nr_to_scan)
650 */ 648 */
651 list_move(&inode->i_lru, &freeable); 649 list_move(&inode->i_lru, &freeable);
652 list_del_init(&inode->i_wb_list); 650 list_del_init(&inode->i_wb_list);
653 percpu_counter_dec(&nr_inodes_unused); 651 inodes_stat.nr_unused--;
654 } 652 }
655 if (current_is_kswapd()) 653 if (current_is_kswapd())
656 __count_vm_events(KSWAPD_INODESTEAL, reap); 654 __count_vm_events(KSWAPD_INODESTEAL, reap);
@@ -1649,7 +1647,6 @@ void __init inode_init(void)
1649 init_once); 1647 init_once);
1650 register_shrinker(&icache_shrinker); 1648 register_shrinker(&icache_shrinker);
1651 percpu_counter_init(&nr_inodes, 0); 1649 percpu_counter_init(&nr_inodes, 0);
1652 percpu_counter_init(&nr_inodes_unused, 0);
1653 1650
1654 /* Hash may have been set up in inode_init_early */ 1651 /* Hash may have been set up in inode_init_early */
1655 if (!hashdist) 1652 if (!hashdist)