When we detect consecutive allocation of pages swap them to avoid
accidentally freeing them as huge page.
v2: use swap
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/ttm/ttm_page_alloc.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c
b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index c82d94cbbabc..b6c5148607e9 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -921,6 +921,10 @@ static int ttm_get_pages(struct page **pages, unsigned
npages, int flags,
return -ENOMEM;
}
+ /* Swap the pages if we detect consecutive order */
+ if (i && pages[i - 1] == p - 1)
+ swap(p, pages[i - 1]);
+
pages[i++] = p;
--npages;
}
--
2.11.0
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