diff options
Diffstat (limited to 'include/linux/raid')
| -rw-r--r-- | include/linux/raid/pq.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index 72ff44cca864..2467b3be15c9 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -11,8 +11,13 @@ #ifdef __KERNEL__ #include <linux/blkdev.h> +#include <linux/mm.h> -extern const char raid6_empty_zero_page[PAGE_SIZE]; +/* This should be const but the raid6 code is too convoluted for that. */ +static inline void *raid6_get_zero_page(void) +{ + return page_address(ZERO_PAGE(0)); +} #else /* ! __KERNEL__ */ /* Used for testing in user space */ @@ -191,6 +196,11 @@ static inline uint32_t raid6_jiffies(void) return tv.tv_sec*1000 + tv.tv_usec/1000; } +static inline void *raid6_get_zero_page(void) +{ + return raid6_empty_zero_page; +} + #endif /* ! __KERNEL__ */ #endif /* LINUX_RAID_RAID6_H */ |