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drm/msm/shrinker: Fix can_block() logic

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[ Upstream commit df0f439e39 ]

The intention here was to allow blocking if DIRECT_RECLAIM or if called
from kswapd and KSWAPD_RECLAIM is set.

Reported by Claude code review: https://lore.gitlab.freedesktop.org/drm-ai-reviews/review-patch9-20260309151119.290217-10-boris.brezillon@collabora.com/ on a panthor patch which had copied similar logic.

Reported-by: Boris Brezillon <boris.brezillon@collabora.com>
Fixes: 7860d720a8 ("drm/msm: Fix build break with recent mm tree")
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Patchwork: https://patchwork.freedesktop.org/patch/714238/
Message-ID: <20260325184106.1259528-1-robin.clark@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Rob Clark
2026-05-23 13:03:13 +02:00
committed by Greg Kroah-Hartman
parent 679a533d22
commit 98fce340ec
1 changed files with 2 additions and 3 deletions
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drivers/gpu/drm/msm/msm_gem_shrinker.c
+2 -3
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@@ -26,9 +26,8 @@ static bool can_swap(void)
static bool can_block(struct shrink_control *sc)
{
if (!(sc->gfp_mask & __GFP_DIRECT_RECLAIM))
return false;
return current_is_kswapd() || (sc->gfp_mask & __GFP_RECLAIM);
return (sc->gfp_mask & __GFP_DIRECT_RECLAIM) ||
(current_is_kswapd() && (sc->gfp_mask & __GFP_KSWAPD_RECLAIM));
}
static unsigned long