From: Dave Airlie <airlied@redhat.com>
Date: Fri, 25 Jul 2008 03:30:08 +0000 (+1000)
Subject: drm: don't set the signal blocker on the master process.
X-Git-Tag: submit/1.0/20121108.012404~642^2~109^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7fd7ba87f35aa4881e99b95bab4151b3f9db9b8e;p=profile%2Fivi%2Flibdrm.git

drm: don't set the signal blocker on the master process.

this lets us debug the X server through xkb startup.

Not sure what the correct answer is, probably X needs to drop
the lock when execing stuff, with input hotplug it can get
xkb stuff at any time I believe.
---

diff --git a/linux-core/drm_lock.c b/linux-core/drm_lock.c
index 6bbf144..6e90e97 100644
--- a/linux-core/drm_lock.c
+++ b/linux-core/drm_lock.c
@@ -107,14 +107,19 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
 		  ret ? "interrupted" : "has lock");
 	if (ret) return ret;
 
-	sigemptyset(&dev->sigmask);
-	sigaddset(&dev->sigmask, SIGSTOP);
-	sigaddset(&dev->sigmask, SIGTSTP);
-	sigaddset(&dev->sigmask, SIGTTIN);
-	sigaddset(&dev->sigmask, SIGTTOU);
-	dev->sigdata.context = lock->context;
-	dev->sigdata.lock = master->lock.hw_lock;
-	block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
+	/* don't set the block all signals on the master process for now 
+	 * really probably not the correct answer but lets us debug xkb
+ 	 * xserver for now */
+	if (!file_priv->is_master) {
+		sigemptyset(&dev->sigmask);
+		sigaddset(&dev->sigmask, SIGSTOP);
+		sigaddset(&dev->sigmask, SIGTSTP);
+		sigaddset(&dev->sigmask, SIGTTIN);
+		sigaddset(&dev->sigmask, SIGTTOU);
+		dev->sigdata.context = lock->context;
+		dev->sigdata.lock = master->lock.hw_lock;
+		block_all_signals(drm_notifier, &dev->sigdata, &dev->sigmask);
+	}
 
 	if (dev->driver->dma_ready && (lock->flags & _DRM_LOCK_READY))
 		dev->driver->dma_ready(dev);