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| author | Imre Deak <imre.deak@intel.com> | 2013-05-21 21:03:19 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-05-22 15:51:23 +0400 |
| commit | e054cc3937a4a58e77870d4c922a7b21824b610a (patch) | |
| tree | 69968fb3dccc87c4879b9cadd5fd6b2efd909733 | |
| parent | 2554fc1fa6dc184ca553f73e3796fa59745efa8a (diff) | |
| download | linux-e054cc3937a4a58e77870d4c922a7b21824b610a.tar.xz | |
drm/i915: avoid premature timeouts in __wait_seqno()
At the moment wait_event_timeout/wait_event_interruptible_timeout may
time out 1 jiffy too early, as the calculated expiry time is 1 less than
needed. Besides timing out too early this also means that the
calculation of the remaining time will be incorrect and we will pass a
non-zero remaining time to user space in case of a time out. This is one
reason for the following bugzilla report:
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64270
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6165535d15f0..a6cf8e843973 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1003,7 +1003,7 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno, wait_forever = false; } - timeout_jiffies = timespec_to_jiffies(&wait_time); + timeout_jiffies = timespec_to_jiffies_timeout(&wait_time); if (WARN_ON(!ring->irq_get(ring))) return -ENODEV; |