diff mbox

[4/4] intel: make drm_intel_gem_bo_get_reloc_count() thread safe

Message ID 1410526118-8421-5-git-send-email-lionel.g.landwerlin@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Lionel Landwerlin Sept. 12, 2014, 12:48 p.m. UTC 
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
---
 intel/intel_bufmgr_gem.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox

Patch

diff --git a/intel/intel_bufmgr_gem.c b/intel/intel_bufmgr_gem.c
index bf6745d..4e34f75 100644
--- a/intel/intel_bufmgr_gem.c
+++ b/intel/intel_bufmgr_gem.c
@@ -1783,6 +1783,7 @@  drm_intel_gem_bo_get_reloc_count(drm_intel_bo *bo)
 drm_public void
 drm_intel_gem_bo_clear_relocs(drm_intel_bo *bo, int start)
 {
+	drm_intel_bufmgr_gem *bufmgr_gem = (drm_intel_bufmgr_gem *) bo->bufmgr;
 	drm_intel_bo_gem *bo_gem = (drm_intel_bo_gem *) bo;
 	int i;
 	struct timespec time;
@@ -1790,7 +1791,10 @@  drm_intel_gem_bo_clear_relocs(drm_intel_bo *bo, int start)
 	clock_gettime(CLOCK_MONOTONIC, &time);
 
 	assert(bo_gem->reloc_count >= start);
+
 	/* Unreference the cleared target buffers */
+	pthread_mutex_lock(&bufmgr_gem->lock);
+
 	for (i = start; i < bo_gem->reloc_count; i++) {
 		drm_intel_bo_gem *target_bo_gem = (drm_intel_bo_gem *) bo_gem->reloc_target_info[i].bo;
 		if (&target_bo_gem->bo != bo) {
@@ -1800,6 +1804,9 @@  drm_intel_gem_bo_clear_relocs(drm_intel_bo *bo, int start)
 		}
 	}
 	bo_gem->reloc_count = start;
+
+	pthread_mutex_unlock(&bufmgr_gem->lock);
+
 }
 
 /**