Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1499552
| From | lizf@kernel.org |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3.4 065/125] drm/ttm: Fixed a read/write lock imbalance |
| Date | 2016-10-12 14:50 +0200 |
| Message-ID | <srr8S-4rr-21@gated-at.bofh.it> (permalink) |
| References | <srqZb-4nM-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Thomas Hellstrom <thellstrom@vmware.com> 3.4.113-rc1 review patch. If anyone has any objections, please let me know. ------------------ commit 025af189fb44250206dd8a32fa4a682392af3301 upstream. In ttm_write_lock(), the uninterruptible path should call __ttm_write_lock() not __ttm_read_lock(). This fixes a vmwgfx hang on F23 start up. syeh: Extracted this from one of Thomas' internal patches. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Zefan Li <lizefan@huawei.com> --- drivers/gpu/drm/ttm/ttm_lock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c index 075daf4..9934b4d 100644 --- a/drivers/gpu/drm/ttm/ttm_lock.c +++ b/drivers/gpu/drm/ttm/ttm_lock.c @@ -180,7 +180,7 @@ int ttm_write_lock(struct ttm_lock *lock, bool interruptible) spin_unlock(&lock->lock); } } else - wait_event(lock->queue, __ttm_read_lock(lock)); + wait_event(lock->queue, __ttm_write_lock(lock)); return ret; } -- 1.9.1
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH 3.4 065/125] drm/ttm: Fixed a read/write lock imbalance lizf@kernel.org - 2016-10-12 14:50 +0200 Re: [PATCH 3.4 065/125] drm/ttm: Fixed a read/write lock imbalance Zefan Li <lizefan@huawei.com> - 2016-10-13 05:00 +0200
csiph-web