Messages in this thread Patch in this message | | | From | Oleksandr Tyshchenko <> | Subject | [PATCH V4 1/6] xen/unpopulated-alloc: Drop check for virt_addr_valid() in fill_list() | Date | Thu, 9 Dec 2021 22:05:31 +0200 |
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From: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
If memremap_pages() succeeds the range is guaranteed to have proper page table, there is no need for an additional virt_addr_valid() check.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> --- Changes RFC -> V2: - new patch, instead of "[RFC PATCH 1/2] arm64: mm: Make virt_addr_valid to check for pfn_valid again"
Changes V2 -> V3: - add Boris' R-b
Changes V3 -> V4: - no changes --- drivers/xen/unpopulated-alloc.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/xen/unpopulated-alloc.c b/drivers/xen/unpopulated-alloc.c index 87e6b7d..a03dc5b 100644 --- a/drivers/xen/unpopulated-alloc.c +++ b/drivers/xen/unpopulated-alloc.c @@ -85,7 +85,6 @@ static int fill_list(unsigned int nr_pages) for (i = 0; i < alloc_pages; i++) { struct page *pg = virt_to_page(vaddr + PAGE_SIZE * i); - BUG_ON(!virt_addr_valid(vaddr + PAGE_SIZE * i)); pg->zone_device_data = page_list; page_list = pg; list_count++; -- 2.7.4
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