[PATCH] drm/ttm: stop warning on TT shrinker failure
Deucher, Alexander
Alexander.Deucher at amd.com
Fri Mar 19 17:19:57 UTC 2021
[AMD Official Use Only - Internal Distribution Only]
+ Leo
________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Christian König <ckoenig.leichtzumerken at gmail.com>
Sent: Friday, March 19, 2021 10:08 AM
To: Liu, Leo <Leo.Liu at amd.com>; amd-gfx at lists.freedesktop.org <amd-gfx at lists.freedesktop.org>; dri-devel at lists.freedesktop.org <dri-devel at lists.freedesktop.org>
Subject: [PATCH] drm/ttm: stop warning on TT shrinker failure
Don't print a warning when we fail to allocate a page for swapping things out.
Also rely on memalloc_nofs_save/memalloc_nofs_restore instead of GFP_NOFS.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/ttm/ttm_tt.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 2f0833c98d2c..86fa3e82dacc 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_KERNEL | __GFP_NOWARN);
return ret < 0 ? SHRINK_EMPTY : ret;
}
@@ -389,10 +389,13 @@ static unsigned long ttm_tt_shrinker_count(struct shrinker *shrink,
static int ttm_tt_debugfs_shrink_show(struct seq_file *m, void *data)
{
struct shrink_control sc = { .gfp_mask = GFP_KERNEL };
+ unsigned int flags;
fs_reclaim_acquire(GFP_KERNEL);
+ flags = memalloc_nofs_save();
seq_printf(m, "%lu/%lu\n", ttm_tt_shrinker_count(&mm_shrinker, &sc),
ttm_tt_shrinker_scan(&mm_shrinker, &sc));
+ memalloc_nofs_restore(flags);
fs_reclaim_release(GFP_KERNEL);
return 0;
--
2.25.1
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