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| author | rnoland <rnoland@FreeBSD.org> | 2010-04-23 14:48:30 +0000 |
|---|---|---|
| committer | rnoland <rnoland@FreeBSD.org> | 2010-04-23 14:48:30 +0000 |
| commit | d39bb9373198a81da7c1f1578c004f23a2f649f7 (patch) | |
| tree | c5dccc5ad651031c246e7163835b2b7f002a9075 /sys/dev/drm/drm_mm.c | |
| parent | 8b9f8a673542755de61861a6fcfcc7f5215e3526 (diff) | |
| download | FreeBSD-src-d39bb9373198a81da7c1f1578c004f23a2f649f7.zip FreeBSD-src-d39bb9373198a81da7c1f1578c004f23a2f649f7.tar.gz | |
Address some WITNESS panics that occur when using the via driver.
Some of these cases should be safe in a non-atomic fashion, however
since all of the driver ioctls are locked, a lot of work is required to
fix it correctly. Just don't sleep now.
MFC after: 2 weeks
Diffstat (limited to 'sys/dev/drm/drm_mm.c')
| -rw-r--r-- | sys/dev/drm/drm_mm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/dev/drm/drm_mm.c b/sys/dev/drm/drm_mm.c index 344436f..bab36c1 100644 --- a/sys/dev/drm/drm_mm.c +++ b/sys/dev/drm/drm_mm.c @@ -333,7 +333,8 @@ int drm_mm_init(struct drm_mm * mm, unsigned long start, unsigned long size) mm->num_unused = 0; mtx_init(&mm->unused_lock, "drm_unused", NULL, MTX_DEF); - return drm_mm_create_tail_node(mm, start, size, 0); + /* XXX This could be non-atomic but gets called from a locked path */ + return drm_mm_create_tail_node(mm, start, size, 1); } void drm_mm_takedown(struct drm_mm * mm) |
