diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-07-23 12:45:07 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-11-14 09:28:50 +0000 |
| commit | d53dab3ae1a3c6b438738c3792c98ac63f0061f4 (patch) | |
| tree | f4e78aae50cd45ae335dbfed81896c3d965628fe /drivers/gpu/drm/exynos/exynos_drm_fb.c | |
| parent | a7c36fd8c5ee6dcca584137cb81aeefd785a0721 (diff) | |
| download | op-kernel-dev-d53dab3ae1a3c6b438738c3792c98ac63f0061f4.zip op-kernel-dev-d53dab3ae1a3c6b438738c3792c98ac63f0061f4.tar.gz | |
drm: Remove utterly bogus preempt_disable() sections
commit 27641c3f (drm/vblank: Add support for precise vblank
timestamping) adds preempt_disable()/enable() around a spin locked
section with the comments:
* Disable preemption, so vblank_time_lock is held as short as
* possible, even under a kernel with PREEMPT_RT patches.
/* Disable preemption while holding vblank_time_lock. Do
* it explicitely to guard against PREEMPT_RT kernel.
Just that this has never been tested on a RT kernel which would have
granted that nonsense with a might_sleep() warning because
dev->vblank_time_lock is converted to a "sleeping" spinlock on RT.
So this is activly wrong on RT and superflous on mainline. Remove it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_fb.c')
0 files changed, 0 insertions, 0 deletions
