diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_page_alloc.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_page_alloc.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index f841accc2c00..b40a4678c296 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -730,9 +730,10 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags, } #ifdef CONFIG_TRANSPARENT_HUGEPAGE - if (!(flags & TTM_PAGE_FLAG_DMA32)) { - for (j = 0; j < HPAGE_PMD_NR; ++j) - if (p++ != pages[i + j]) + if (!(flags & TTM_PAGE_FLAG_DMA32) && + (npages - i) >= HPAGE_PMD_NR) { + for (j = 1; j < HPAGE_PMD_NR; ++j) + if (++p != pages[i + j]) break; if (j == HPAGE_PMD_NR) @@ -759,15 +760,15 @@ static void ttm_put_pages(struct page **pages, unsigned npages, int flags, unsigned max_size, n2free; spin_lock_irqsave(&huge->lock, irq_flags); - while (i < npages) { + while ((npages - i) >= HPAGE_PMD_NR) { struct page *p = pages[i]; unsigned j; if (!p) break; - for (j = 0; j < HPAGE_PMD_NR; ++j) - if (p++ != pages[i + j]) + for (j = 1; j < HPAGE_PMD_NR; ++j) + if (++p != pages[i + j]) break; if (j != HPAGE_PMD_NR) @@ -1027,7 +1028,7 @@ void ttm_page_alloc_fini(void) static void ttm_pool_unpopulate_helper(struct ttm_tt *ttm, unsigned mem_count_update) { - struct ttm_mem_global *mem_glob = ttm->bdev->glob->mem_glob; + struct ttm_mem_global *mem_glob = &ttm_mem_glob; unsigned i; if (mem_count_update == 0) @@ -1048,7 +1049,7 @@ put_pages: int ttm_pool_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx) { - struct ttm_mem_global *mem_glob = ttm->bdev->glob->mem_glob; + struct ttm_mem_global *mem_glob = &ttm_mem_glob; unsigned i; int ret; |