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[1/7] drm/ttm:fix incorrect calculate on shrink_pages

Message ID MWHPR1201MB01279700C09C9DEAC6986639FD340@MWHPR1201MB0127.namprd12.prod.outlook.com (mailing list archive)
State New, archived
Headers show

Commit Message

He, Hongbo Dec. 12, 2017, 10:09 a.m. UTC 
Reviewed-by: Roger He <Hongbo.He@amd.com>

Thanks
Roger(Hongbo.He)
-----Original Message-----
From: amd-gfx [mailto:amd-gfx-bounces@lists.freedesktop.org] On Behalf Of Monk Liu
Sent: Tuesday, December 12, 2017 5:47 PM
To: amd-gfx@lists.freedesktop.org
Cc: Liu, Monk <Monk.Liu@amd.com>
Subject: [PATCH 1/7] drm/ttm:fix incorrect calculate on shrink_pages

shrink_pages is in unit of Order after ttm_page_pool_free, but it is used by nr_free in next round so need change it into native page unit

Change-Id: I33b77ac1616e24b1b881eee54c3bd7342cfa9ab8
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
---
 drivers/gpu/drm/ttm/ttm_page_alloc.c | 1 +
 1 file changed, 1 insertion(+)

--
2.7.4

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diff mbox

Patch

diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index 44343a2..71945cc 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -455,6 +455,7 @@  ttm_pool_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 		freed += (nr_free_pool - shrink_pages) << pool->order;
 		if (freed >= sc->nr_to_scan)
 			break;
+		shrink_pages <<= pool->order;
 	}
 	mutex_unlock(&lock);
 	return freed;