---
name: "drm_modeset_backoff"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/drm_modeset_backoff"
---

# drm\_modeset\_backoff(9)

deadlock avoidance backoff

## NAME

drm\_modeset\_backoff - deadlock avoidance backoff

## SYNOPSIS

**void drm\_modeset\_backoff(struct drm\_modeset\_acquire\_ctx \*** *ctx***);**

## ARGUMENTS

*ctx*

the acquire context

## DESCRIPTION

If deadlock is detected (ie. **drm\_modeset\_lock** returns -EDEADLK), you must call this function to drop all currently held locks and block until the contended lock becomes available.

## AUTHORS

**Jesse Barnes** \<jesse.barnes@intel.com\>\
 Intel Corporation,

Initial version

**Laurent Pinchart** \<laurent.pinchart@ideasonboard.com\>\
 Ideas on board SPRL,

Driver internals

**Daniel Vetter** \<daniel.vetter@ffwll.ch\>\
 Intel Corporation,

Contributions all over the place

## COPYRIGHT