diff options
| author | Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | 2007-10-25 11:00:45 +0200 |
|---|---|---|
| committer | Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | 2007-10-25 11:00:45 +0200 |
| commit | 9adf8c02563b1e6110e46dabd733e2dc440b4200 (patch) | |
| tree | 7a0e360dc9663b3e269a5d5e164672bf8885a5e4 /linux-core/drm_vm.c | |
| parent | d5f2b4b411c5ca95d6f66a33d213ece387ac4fc5 (diff) | |
| parent | b9d9c30474238ac8ba4899a19fe4a97e9376f6c4 (diff) | |
Merge branch 'master' into modesetting-101
Conflicts:
linux-core/Makefile.kernel
linux-core/drm_bo.c
linux-core/drm_objects.h
Diffstat (limited to 'linux-core/drm_vm.c')
| -rw-r--r-- | linux-core/drm_vm.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/linux-core/drm_vm.c b/linux-core/drm_vm.c index c4e790ef..d2554f31 100644 --- a/linux-core/drm_vm.c +++ b/linux-core/drm_vm.c @@ -728,10 +728,17 @@ static unsigned long drm_bo_vm_nopfn(struct vm_area_struct *vma, if (address > vma->vm_end) return NOPFN_SIGBUS; - err = mutex_lock_interruptible(&bo->mutex); + dev = bo->dev; + err = drm_bo_read_lock(&dev->bm.bm_lock); if (err) return NOPFN_REFAULT; + err = mutex_lock_interruptible(&bo->mutex); + if (err) { + drm_bo_read_unlock(&dev->bm.bm_lock); + return NOPFN_REFAULT; + } + err = drm_bo_wait(bo, 0, 0, 0); if (err) { ret = (err != -EAGAIN) ? NOPFN_SIGBUS : NOPFN_REFAULT; @@ -754,7 +761,6 @@ static unsigned long drm_bo_vm_nopfn(struct vm_area_struct *vma, } } - dev = bo->dev; err = drm_bo_pci_offset(dev, &bo->mem, &bus_base, &bus_offset, &bus_size); @@ -792,6 +798,7 @@ static unsigned long drm_bo_vm_nopfn(struct vm_area_struct *vma, } out_unlock: mutex_unlock(&bo->mutex); + drm_bo_read_unlock(&dev->bm.bm_lock); return ret; } #endif |