diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/device-mapper.h | 9 | ||||
-rw-r--r-- | include/linux/math64.h | 13 | ||||
-rw-r--r-- | include/uapi/linux/dm-ioctl.h | 4 |
3 files changed, 24 insertions, 2 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index e151d4c9298d..653073de09e3 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -10,6 +10,7 @@ #include <linux/bio.h> #include <linux/blkdev.h> +#include <linux/math64.h> #include <linux/ratelimit.h> struct dm_dev; @@ -550,6 +551,14 @@ extern struct ratelimit_state dm_ratelimit_state; #define DM_MAPIO_REMAPPED 1 #define DM_MAPIO_REQUEUE DM_ENDIO_REQUEUE +#define dm_sector_div64(x, y)( \ +{ \ + u64 _res; \ + (x) = div64_u64_rem(x, y, &_res); \ + _res; \ +} \ +) + /* * Ceiling(n / sz) */ diff --git a/include/linux/math64.h b/include/linux/math64.h index 2913b86eb12a..69ed5f5e9f6e 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -31,6 +31,15 @@ static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder) } /** + * div64_u64_rem - unsigned 64bit divide with 64bit divisor and remainder + */ +static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder) +{ + *remainder = dividend % divisor; + return dividend / divisor; +} + +/** * div64_u64 - unsigned 64bit divide with 64bit divisor */ static inline u64 div64_u64(u64 dividend, u64 divisor) @@ -63,6 +72,10 @@ static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder) extern s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder); #endif +#ifndef div64_u64_rem +extern u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder); +#endif + #ifndef div64_u64 extern u64 div64_u64(u64 dividend, u64 divisor); #endif diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h index afd0cbd52edb..f1e12bd40b3b 100644 --- a/include/uapi/linux/dm-ioctl.h +++ b/include/uapi/linux/dm-ioctl.h @@ -267,9 +267,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 25 +#define DM_VERSION_MINOR 26 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2013-06-26)" +#define DM_VERSION_EXTRA "-ioctl (2013-08-15)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ |