1 files changed, 30 insertions, 14 deletions

diff --git a/include/linux/quota.h b/include/linux/quota.h
index b462916b2a0a..94c1f03b50eb 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -174,6 +174,7 @@ enum {
 #include <linux/rwsem.h>
 #include <linux/spinlock.h>
 #include <linux/wait.h>
+#include <linux/percpu_counter.h>
 
 #include <linux/dqblk_xfs.h>
 #include <linux/dqblk_v1.h>
@@ -238,19 +239,36 @@ static inline int info_dirty(struct mem_dqinfo *info)
         return test_bit(DQF_INFO_DIRTY_B, &info->dqi_flags);
 }
 
+enum {
+        DQST_LOOKUPS,
+        DQST_DROPS,
+        DQST_READS,
+        DQST_WRITES,
+        DQST_CACHE_HITS,
+        DQST_ALLOC_DQUOTS,
+        DQST_FREE_DQUOTS,
+        DQST_SYNCS,
+        _DQST_DQSTAT_LAST
+};
+
 struct dqstats {
-        int lookups;
-        int drops;
-        int reads;
-        int writes;
-        int cache_hits;
-        int allocated_dquots;
-        int free_dquots;
-        int syncs;
+        int stat[_DQST_DQSTAT_LAST];
+        struct percpu_counter counter[_DQST_DQSTAT_LAST];
 };
 
+extern struct dqstats *dqstats_pcpu;
 extern struct dqstats dqstats;
 
+static inline void dqstats_inc(unsigned int type)
+{
+        percpu_counter_inc(&dqstats.counter[type]);
+}
+
+static inline void dqstats_dec(unsigned int type)
+{
+        percpu_counter_dec(&dqstats.counter[type]);
+}
+
 #define DQ_MOD_B        0       /* dquot modified since read */
 #define DQ_BLKS_B       1       /* uid/gid has been warned about blk limit */
 #define DQ_INODES_B     2       /* uid/gid has been warned about inode limit */
@@ -306,17 +324,15 @@ struct dquot_operations {
 
 /* Operations handling requests from userspace */
 struct quotactl_ops {
-        int (*quota_on)(struct super_block *, int, int, char *, int);
-        int (*quota_off)(struct super_block *, int, int);
+        int (*quota_on)(struct super_block *, int, int, char *);
+        int (*quota_off)(struct super_block *, int);
         int (*quota_sync)(struct super_block *, int, int);
         int (*get_info)(struct super_block *, int, struct if_dqinfo *);
         int (*set_info)(struct super_block *, int, struct if_dqinfo *);
-        int (*get_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
-        int (*set_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
+        int (*get_dqblk)(struct super_block *, int, qid_t, struct fs_disk_quota *);
+        int (*set_dqblk)(struct super_block *, int, qid_t, struct fs_disk_quota *);
         int (*get_xstate)(struct super_block *, struct fs_quota_stat *);
         int (*set_xstate)(struct super_block *, unsigned int, int);
-        int (*get_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *);
-        int (*set_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *);
 };
 
 struct quota_format_type {