From: Ben Skeggs <bskeggs@redhat.com>
Date: Thu, 26 Aug 2010 04:58:57 +0000 (+1000)
Subject: drm: export drm_global_mutex for drivers to use
X-Git-Tag: v2.6.36-rc3~9^2~6^2~1
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=e3461a2bc0d67ce60a915e0f26e2a6eb4a4d4b99;p=uclinux-h8%2Flinux.git

drm: export drm_global_mutex for drivers to use

Nouveau needs to be able to drop the mutex before sleeping to prevent a
deadlock from occuring.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 2ca8df8b6102..41dfaae41159 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -41,6 +41,7 @@
 
 /* from BKL pushdown: note that nothing else serializes idr_find() */
 DEFINE_MUTEX(drm_global_mutex);
+EXPORT_SYMBOL(drm_global_mutex);
 
 static int drm_open_helper(struct inode *inode, struct file *filp,
 			   struct drm_device * dev);