Re: [PATCH] drm/ttm: Make ttm shrinkers NUMA aware

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Am 08.04.24 um 19:49 schrieb Rajneesh Bhardwaj:
Otherwise the nid is always passed as 0 during memory reclaim so
make TTM shrinkers NUMA aware.

Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@xxxxxxx>
  drivers/gpu/drm/ttm/ttm_pool.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index dbc96984d331..514261f44b78 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -794,7 +794,7 @@ int ttm_pool_mgr_init(unsigned long num_pages)
- mm_shrinker = shrinker_alloc(0, "drm-ttm_pool");
+	mm_shrinker = shrinker_alloc(SHRINKER_NUMA_AWARE, "drm-ttm_pool");

Well that won't do it.

Setting the flag is just one step, but both ttm_pool_shrinker_scan() and ttm_pool_type_count() needs to be made NUMA aware.

This means that allocated_pages needs to become a per NID array and ttm_pool_shrink() should not shrink any pooĺ but only those with the correct nid (if the nid is set).


  	if (!mm_shrinker)
  		return -ENOMEM;

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