On Mon, Mar 22, 2021 at 12:22 PM Christian König ckoenig.leichtzumerken@gmail.com wrote:
Don't print a warning when we fail to allocate a page for swapping things out.
v2: only stop the warning
Signed-off-by: Christian König christian.koenig@amd.com
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch
It is kinda surprising that page allocator warns here even though we explicitly asked for non-GFP_KERNEL (which is the only one where you pretty much can assume you will get memory no matter what, since worst case the OOM killer makes space for you).
But then with memalloc_no* and friends these failures could happen in unexpected places, and I think the code that warns isn't aware of the original gfp flags, so makes some sense from an implementation pov. -Daniel
drivers/gpu/drm/ttm/ttm_tt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 2f0833c98d2c..48b9a650630b 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -369,7 +369,7 @@ static unsigned long ttm_tt_shrinker_scan(struct shrinker *shrink, }; int ret;
ret = ttm_bo_swapout(&ctx, GFP_NOFS);
ret = ttm_bo_swapout(&ctx, GFP_NOFS | __GFP_NOWARN); return ret < 0 ? SHRINK_EMPTY : ret;}
-- 2.25.1