Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / include / linux / genhd.h

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 142e1c1e06899423948cb1e71d8db34cb33dc437..fd647fde5ec18f0aba4124346fd4363d97fe4569 100644 (file)
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -78,7 +78,7 @@ struct hd_struct {
        sector_t start_sect;
        sector_t nr_sects;
        struct kobject kobj;
-       unsigned reads, read_sectors, writes, write_sectors;
+       unsigned ios[2], sectors[2];    /* READs and WRITEs */
        int policy, partno;
 };
 
@@ -89,10 +89,10 @@ struct hd_struct {
 #define GENHD_FL_SUPPRESS_PARTITION_INFO       32
 
 struct disk_stats {
-       unsigned read_sectors, write_sectors;
-       unsigned reads, writes;
-       unsigned read_merges, write_merges;
-       unsigned read_ticks, write_ticks;
+       unsigned sectors[2];            /* READs and WRITEs */
+       unsigned ios[2];
+       unsigned merges[2];
+       unsigned ticks[2];
        unsigned io_ticks;
        unsigned time_in_queue;
 };
@@ -132,6 +132,7 @@ struct gendisk {
 struct disk_attribute {
        struct attribute attr;
        ssize_t (*show)(struct gendisk *, char *);
+       ssize_t (*store)(struct gendisk *, const char *, size_t);
 };
 
 /* 
@@ -148,22 +149,16 @@ struct disk_attribute {
 ({                                                                     \
        typeof(gendiskp->dkstats->field) res = 0;                       \
        int i;                                                          \
-       for (i=0; i < NR_CPUS; i++) {                                   \
-               if (!cpu_possible(i))                                   \
-                       continue;                                       \
+       for_each_cpu(i)                                                 \
                res += per_cpu_ptr(gendiskp->dkstats, i)->field;        \
-       }                                                               \
        res;                                                            \
 })
 
 static inline void disk_stat_set_all(struct gendisk *gendiskp, int value)      {
        int i;
-       for (i=0; i < NR_CPUS; i++) {
-               if (cpu_possible(i)) {
-                       memset(per_cpu_ptr(gendiskp->dkstats, i), value,        
-                                       sizeof (struct disk_stats));
-               }
-       }
+       for_each_cpu(i)
+               memset(per_cpu_ptr(gendiskp->dkstats, i), value,
+                               sizeof (struct disk_stats));
 }              
                                
 #else