diff options
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/dma-fence.c | 1 | ||||
| -rw-r--r-- | drivers/dma-buf/dma-resv.c | 5 | ||||
| -rw-r--r-- | drivers/dma-buf/udmabuf.c | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index 43624b4ee13d..7475e09b0680 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -283,6 +283,7 @@ EXPORT_SYMBOL(dma_fence_begin_signalling); /** * dma_fence_end_signalling - end a critical DMA fence signalling section + * @cookie: opaque cookie from dma_fence_begin_signalling() * * Closes a critical section annotation opened by dma_fence_begin_signalling(). */ diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 434a3314fb0e..1c8f2581cb09 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -98,12 +98,14 @@ static int __init dma_resv_lockdep(void) struct mm_struct *mm = mm_alloc(); struct ww_acquire_ctx ctx; struct dma_resv obj; + struct address_space mapping; int ret; if (!mm) return -ENOMEM; dma_resv_init(&obj); + address_space_init_once(&mapping); mmap_read_lock(mm); ww_acquire_init(&ctx, &reservation_ww_class); @@ -111,6 +113,9 @@ static int __init dma_resv_lockdep(void) if (ret == -EDEADLK) dma_resv_lock_slow(&obj, &ctx); fs_reclaim_acquire(GFP_KERNEL); + /* for unmap_mapping_range on trylocked buffer objects in shrinkers */ + i_mmap_lock_write(&mapping); + i_mmap_unlock_write(&mapping); #ifdef CONFIG_MMU_NOTIFIER lock_map_acquire(&__mmu_notifier_invalidate_range_start_map); __dma_fence_might_wait(); diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c index 89e293bd9252..db732f71e59a 100644 --- a/drivers/dma-buf/udmabuf.c +++ b/drivers/dma-buf/udmabuf.c @@ -307,6 +307,9 @@ static long udmabuf_ioctl(struct file *filp, unsigned int ioctl, static const struct file_operations udmabuf_fops = { .owner = THIS_MODULE, .unlocked_ioctl = udmabuf_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = udmabuf_ioctl, +#endif }; static struct miscdevice udmabuf_misc = { |