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authorMichel Dänzer <michel@tungstengraphics.com>2006-09-01 11:35:31 +0200
committerMichel Dänzer <michel@tungstengraphics.com>2006-09-28 15:41:36 +0200
commitcf6b2c5299e9be3542d4deddfd05d5811f11d2ef (patch)
treeb4f1786abba9325ebb65a99a5cf2fe13af347a0f
parent89e323e4900af84cc33219ad24eb0b435a039d23 (diff)
Core vsync: Don't clobber target sequence number when scheduling signal.
It looks like this would have caused signals to always get sent on the next vertical blank, regardless of the sequence number.
-rw-r--r--linux-core/drm_irq.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/linux-core/drm_irq.c b/linux-core/drm_irq.c
index bd8a9c82..d1a6a6b1 100644
--- a/linux-core/drm_irq.c
+++ b/linux-core/drm_irq.c
@@ -295,8 +295,6 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
? &dev->vbl_sigs2 : &dev->vbl_sigs;
drm_vbl_sig_t *vbl_sig;
- vblwait.reply.sequence = seq;
-
spin_lock_irqsave(&dev->vbl_lock, irqflags);
/* Check if this task has already scheduled the same signal
@@ -309,6 +307,7 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
&& vbl_sig->task == current) {
spin_unlock_irqrestore(&dev->vbl_lock,
irqflags);
+ vblwait.reply.sequence = seq;
goto done;
}
}
@@ -339,6 +338,8 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
list_add_tail((struct list_head *)vbl_sig, &vbl_sigs->head);
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
+
+ vblwait.reply.sequence = seq;
} else {
if (flags & _DRM_VBLANK_SECONDARY) {
if (dev->driver->vblank_wait2)