Signed-off-by: Christoph Lameter --- include/linux/genhd.h | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) Index: linux-2.6/include/linux/genhd.h =================================================================== --- linux-2.6.orig/include/linux/genhd.h 2007-11-18 14:38:24.285456612 -0800 +++ linux-2.6/include/linux/genhd.h 2007-11-18 22:04:47.428523761 -0800 @@ -158,21 +158,21 @@ struct disk_attribute { */ #ifdef CONFIG_SMP #define __disk_stat_add(gendiskp, field, addnd) \ - (per_cpu_ptr(gendiskp->dkstats, smp_processor_id())->field += addnd) + __CPU_ADD(gendiskp->dkstats->field, addnd) #define disk_stat_read(gendiskp, field) \ ({ \ typeof(gendiskp->dkstats->field) res = 0; \ int i; \ for_each_possible_cpu(i) \ - res += per_cpu_ptr(gendiskp->dkstats, i)->field; \ + res += CPU_PTR(gendiskp->dkstats, i)->field; \ res; \ }) static inline void disk_stat_set_all(struct gendisk *gendiskp, int value) { int i; for_each_possible_cpu(i) - memset(per_cpu_ptr(gendiskp->dkstats, i), value, + memset(CPU_PTR(gendiskp->dkstats, i), value, sizeof (struct disk_stats)); } @@ -187,11 +187,7 @@ static inline void disk_stat_set_all(str #endif #define disk_stat_add(gendiskp, field, addnd) \ - do { \ - preempt_disable(); \ - __disk_stat_add(gendiskp, field, addnd); \ - preempt_enable(); \ - } while (0) + _CPU_ADD(gendiskp->dkstats->field, addnd); #define __disk_stat_dec(gendiskp, field) __disk_stat_add(gendiskp, field, -1) #define disk_stat_dec(gendiskp, field) disk_stat_add(gendiskp, field, -1) @@ -209,7 +205,7 @@ static inline void disk_stat_set_all(str #ifdef CONFIG_SMP static inline int init_disk_stats(struct gendisk *disk) { - disk->dkstats = alloc_percpu(struct disk_stats); + disk->dkstats = CPU_ALLOC(struct disk_stats, GFP_KERNEL | __GFP_ZERO); if (!disk->dkstats) return 0; return 1; @@ -217,7 +213,7 @@ static inline int init_disk_stats(struct static inline void free_disk_stats(struct gendisk *disk) { - free_percpu(disk->dkstats); + CPU_FREE(disk->dkstats); } #else /* CONFIG_SMP */ static inline int init_disk_stats(struct gendisk *disk) -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/