diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-04 11:12:54 +0100 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2014-12-05 15:20:24 +0200 |
| commit | 7bd0e226e313547add65c7e4b0ecf65cb981a3c6 (patch) | |
| tree | fe3e62205d3e573637a7098c51f3b47610ba1e8b /kernel/time | |
| parent | af15d2ce5d497ba6535dead782cfadbcc83d90fe (diff) | |
drm/i915: compute wait_ioctl timeout correctly
We've lost the +1 required for correct timeouts in
commit 5ed0bdf21a85d78e04f89f15ccf227562177cbd9
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Wed Jul 16 21:05:06 2014 +0000
drm: i915: Use nsec based interfaces
Use ktime_get_raw_ns() and get rid of the back and forth timespec
conversions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: John Stultz <john.stultz@linaro.org>
So fix this up by reinstating our handrolled _timeout function. While
at it bother with handling MAX_JIFFIES.
v2: Convert to usecs (we don't care about the accuracy anyway) first
to avoid overflow issues Dave Gordon spotted.
v3: Drop the explicit MAX_JIFFY_OFFSET check, usecs_to_jiffies should
take care of that already. It might be a bit too enthusiastic about it
though.
v4: Chris has a much nicer color, so use his implementation.
This requires to export nsec_to_jiffies from time.c.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Gordon <david.s.gordon@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82749
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/time.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c index a9ae20fb0b11..8fae82ca5cbf 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -745,6 +745,7 @@ u64 nsecs_to_jiffies64(u64 n) return div_u64(n * 9, (9ull * NSEC_PER_SEC + HZ / 2) / HZ); #endif } +EXPORT_SYMBOL(nsecs_to_jiffies64); /** * nsecs_to_jiffies - Convert nsecs in u64 to jiffies |