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| author | Christian König <christian.koenig@amd.com> | 2017-10-12 20:28:42 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-19 22:27:10 +0300 |
| commit | 5c42c64f7d54ba560b0b001e4e73e4a1aeed1355 (patch) | |
| tree | 3625a959198e83bd0c8af90e5c92dcecf9069af3 /drivers/gpu/drm/ttm | |
| parent | c057c11403e461185a24d7f5dc2fbd059bbd1502 (diff) | |
| download | linux-5c42c64f7d54ba560b0b001e4e73e4a1aeed1355.tar.xz | |
drm/ttm: fix the fix for huge compound pages
We don't use compound pages at the moment. Take this into account when
freeing them.
Signed-off-by: Christian König <christian.koenig@amd.comd>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_page_alloc.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index 95022473704b..4d688c8d7853 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -733,22 +733,33 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags, /* No pool for this memory type so free the pages */ i = 0; while (i < npages) { - unsigned order; +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + struct page *p = pages[i]; +#endif + unsigned order = 0, j; if (!pages[i]) { ++i; continue; } +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + for (j = 0; j < HPAGE_PMD_NR; ++j) + if (p++ != pages[i + j]) + break; + + if (j == HPAGE_PMD_NR) + order = HPAGE_PMD_ORDER; +#endif + if (page_count(pages[i]) != 1) pr_err("Erroneous page count. Leaking pages.\n"); - order = compound_order(pages[i]); __free_pages(pages[i], order); - order = 1 << order; - while (order) { + j = 1 << order; + while (j) { pages[i++] = NULL; - --order; + --j; } } return; |