diff options
Diffstat (limited to 'drivers/md/bcache/util.h')
| -rw-r--r-- | drivers/md/bcache/util.h | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h index 4e0ed19e32d3..00aab6abcfe4 100644 --- a/drivers/md/bcache/util.h +++ b/drivers/md/bcache/util.h @@ -11,6 +11,7 @@ #include <linux/ratelimit.h> #include <linux/vmalloc.h> #include <linux/workqueue.h> +#include <linux/crc64.h> #include "closure.h" @@ -543,6 +544,22 @@ dup: \ #define RB_PREV(ptr, member) \ container_of_or_null(rb_prev(&(ptr)->member), typeof(*ptr), member) +static inline uint64_t bch_crc64(const void *p, size_t len) +{ + uint64_t crc = 0xffffffffffffffffULL; + + crc = crc64_be(crc, p, len); + return crc ^ 0xffffffffffffffffULL; +} + +static inline uint64_t bch_crc64_update(uint64_t crc, + const void *p, + size_t len) +{ + crc = crc64_be(crc, p, len); + return crc; +} + /* Does linear interpolation between powers of two */ static inline unsigned int fract_exp_two(unsigned int x, unsigned int fract_bits) @@ -563,8 +580,4 @@ static inline sector_t bdev_sectors(struct block_device *bdev) { return bdev->bd_inode->i_size >> 9; } - -uint64_t bch_crc64_update(uint64_t crc, const void *_data, size_t len); -uint64_t bch_crc64(const void *data, size_t len); - #endif /* _BCACHE_UTIL_H */ |
