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Backport ktime_ms_delta().

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This function will return the number of milliseconds between two ktime
values, but it was only introduced in kernel version 4.0

Signed-off-by: Shaun Ruffell <sruffell@sruffell.net>
This commit is contained in:
Shaun Ruffell 2019-01-11 16:10:12 +00:00
parent e93c53ce05
commit 95fccc653c
1 changed files with 26 additions and 0 deletions
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26
include/dahdi/kernel.h
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@ -1413,6 +1413,31 @@ timer_setup(struct timer_list *timer,
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0) #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0)
#define refcount_read atomic_read #define refcount_read atomic_read
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)
#ifdef RHEL_RELEASE_VERSION
#if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6, 8)
#define DAHDI_HAVE_KTIME_MS_DELTA
#endif
#endif
#ifndef DAHDI_HAVE_KTIME_MS_DELTA
static inline s64 dahdi_ktime_to_ms(const ktime_t kt)
{
struct timeval tv = ktime_to_timeval(kt);
return (s64) tv.tv_sec * MSEC_PER_SEC + tv.tv_usec / USEC_PER_MSEC;
}
static inline s64 ktime_ms_delta(const ktime_t later, const ktime_t earlier)
{
return dahdi_ktime_to_ms(ktime_sub(later, earlier));
}
#else
#undef DAHDI_HAVE_KTIME_MS_DELTA
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 0) #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 16, 0)
/* DAHDI only was using the xxx_clear_bit variants. */ /* DAHDI only was using the xxx_clear_bit variants. */
@ -1451,6 +1476,7 @@ static inline void *PDE_DATA(const struct inode *inode)
#endif /* 2.6.31 */ #endif /* 2.6.31 */
#endif /* 3.10.0 */ #endif /* 3.10.0 */
#endif /* 3.16.0 */ #endif /* 3.16.0 */
#endif /* 4.0.0 */
#endif /* 4.11.0 */ #endif /* 4.11.0 */
#endif /* 4.13.0 */ #endif /* 4.13.0 */
#else /* >= 4.15.0 */ #else /* >= 4.15.0 */