diff options
| author | Jonathan Corbet <corbet@lwn.net> | 2019-10-29 04:43:29 -0600 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2019-10-29 04:43:29 -0600 |
| commit | 822bbba0cabb50825a0ce22707dc45eb82d02853 (patch) | |
| tree | ea61d4ca72cb60b4cae8e95f64eefa7cd2a36603 /drivers/gpu/drm/ttm/ttm_bo_vm.c | |
| parent | d41abfd7ae33cd3c1d9189438937d61cb75e690a (diff) | |
| parent | 7d194c2100ad2a6dded545887d02754948ca5241 (diff) | |
Merge tag 'v5.4-rc4' into docs-next
I need to pick up the independent changes made to
Documentation/core-api/memory-allocation.rst to be able to merge further
work without creating a total mess.
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo_vm.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_vm.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 76eedb963693..46dc3de7e81b 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -278,15 +278,13 @@ static vm_fault_t ttm_bo_vm_fault(struct vm_fault *vmf) else ret = vmf_insert_pfn(&cvma, address, pfn); - /* - * Somebody beat us to this PTE or prefaulting to - * an already populated PTE, or prefaulting error. - */ - - if (unlikely((ret == VM_FAULT_NOPAGE && i > 0))) - break; - else if (unlikely(ret & VM_FAULT_ERROR)) - goto out_io_unlock; + /* Never error on prefaulted PTEs */ + if (unlikely((ret & VM_FAULT_ERROR))) { + if (i == 0) + goto out_io_unlock; + else + break; + } address += PAGE_SIZE; if (unlikely(++page_offset >= page_last)) |