A BO that's already swapped would be added back to the swap-LRU list
for example if its validation failed under high memory pressure. This
could later lead to swapping it out again and leaking previous swap
storage.
This commit adds a condition to prevent that from happening.
v2: Check page_flags instead of swap_storage
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
list_add_tail(&bo->lru, &man->lru[bo->priority]);
kref_get(&bo->list_kref);
- if (bo->ttm && !(bo->ttm->page_flags & TTM_PAGE_FLAG_SG)) {
+ if (bo->ttm && !(bo->ttm->page_flags &
+ (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SWAPPED))) {
list_add_tail(&bo->swap,
&bo->glob->swap_lru[bo->priority]);
kref_get(&bo->list_kref);