eventfd: track eventfd_signal() recursion depth

[mirror_ubuntu-bionic-kernel.git] / include / video / udlfb.h

diff --git a/include/video/udlfb.h b/include/video/udlfb.h
index 1252a7a89bc02f602473896fc5b7f5e149db5cf8..85e32ee739fc34521de2a27954b021ee4cfd389c 100644 (file)
--- a/include/video/udlfb.h
+++ b/include/video/udlfb.h
@@ -88,7 +88,7 @@ struct dlfb_data {
 #define MIN_RAW_PIX_BYTES      2
 #define MIN_RAW_CMD_BYTES      (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES)
 
-#define DL_DEFIO_WRITE_DELAY    5 /* fb_deferred_io.delay in jiffies */
+#define DL_DEFIO_WRITE_DELAY    msecs_to_jiffies(HZ <= 300 ? 4 : 10) /* optimal value for 720p video */
 #define DL_DEFIO_WRITE_DISABLE  (HZ*60) /* "disable" with long delay */
 
 /* remove these once align.h patch is taken into kernel */