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path: root/drivers/gpu/drm/drm_mm.c
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Diffstat (limited to 'drivers/gpu/drm/drm_mm.c')
-rw-r--r--drivers/gpu/drm/drm_mm.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 2a6e34663146..bc6e208949e8 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -45,6 +45,7 @@
#include <linux/export.h>
#include <linux/interval_tree_generic.h>
#include <linux/seq_file.h>
+#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/stacktrace.h>
@@ -366,6 +367,11 @@ next_hole(struct drm_mm *mm,
struct drm_mm_node *node,
enum drm_mm_insert_mode mode)
{
+ /* Searching is slow; check if we ran out of time/patience */
+ cond_resched();
+ if (fatal_signal_pending(current))
+ return NULL;
+
switch (mode) {
default:
case DRM_MM_INSERT_BEST:
@@ -399,10 +405,10 @@ next_hole(struct drm_mm *mm,
*/
int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node)
{
- u64 end = node->start + node->size;
struct drm_mm_node *hole;
u64 hole_start, hole_end;
u64 adj_start, adj_end;
+ u64 end;
end = node->start + node->size;
if (unlikely(end <= node->start))
@@ -557,7 +563,7 @@ int drm_mm_insert_node_in_range(struct drm_mm * const mm,
return 0;
}
- return -ENOSPC;
+ return signal_pending(current) ? -ERESTARTSYS : -ENOSPC;
}
EXPORT_SYMBOL(drm_mm_insert_node_in_range);