From: c00426987 <c00426987@xxxxxxxxxx> __get_free_pages will return an 64bit address in 64bit System like arm64 or x86_64. And this comment really confuse new bigenner of mm. reported-by: Hanjun Guo <guohanjun@xxxxxxxxxx> Signed-off-by: Chen Jiankang <chenjiankang1@xxxxxxxxxx> --- mm/page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 77e4d3c..b847b24 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4240,8 +4240,8 @@ unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order) struct page *page; /* - * __get_free_pages() returns a 32-bit address, which cannot represent - * a highmem page + * __get_free_pages() returns a virtual address, which + * cannot represent a highmem page */ VM_BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0); -- 1.7.12.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
