We need to grab the resv lock first before doing that check. v2 (chk): simplify the change for -fixes Signed-off-by: Christian König <christian.koenig@xxxxxxx> Signed-off-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/ttm/ttm_bo.c | 5 ++++- drivers/gpu/drm/ttm/ttm_device.c | 8 +------- 2 files changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index cfd0b9292397..ebcffe794adb 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1172,7 +1172,10 @@ int ttm_bo_swapout(struct ttm_buffer_object *bo, struct ttm_operation_ctx *ctx, if (!ttm_bo_evict_swapout_allowable(bo, ctx, &locked, NULL)) return -EBUSY; - if (!ttm_bo_get_unless_zero(bo)) { + if (!bo->ttm || !ttm_tt_is_populated(bo->ttm) || + bo->ttm->page_flags & TTM_PAGE_FLAG_SG || + bo->ttm->page_flags & TTM_PAGE_FLAG_SWAPPED || + !ttm_bo_get_unless_zero(bo)) { if (locked) dma_resv_unlock(bo->base.resv); return -EBUSY; diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index a1dcf7d55c90..3d9c62b93e29 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -143,14 +143,8 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx, for (j = 0; j < TTM_MAX_BO_PRIORITY; ++j) { list_for_each_entry(bo, &man->lru[j], lru) { - uint32_t num_pages; + uint32_t num_pages = PFN_UP(bo->base.size); - if (!bo->ttm || !ttm_tt_is_populated(bo->ttm) || - bo->ttm->page_flags & TTM_PAGE_FLAG_SG || - bo->ttm->page_flags & TTM_PAGE_FLAG_SWAPPED) - continue; - - num_pages = bo->ttm->num_pages; ret = ttm_bo_swapout(bo, ctx, gfp_flags); /* ttm_bo_swapout has dropped the lru_lock */ if (!ret) -- 2.25.1