On Thu, Feb 1, 2018 at 11:42 PM, Igor Stoppa <igor.sto...@huawei.com> wrote: > On 01/02/18 02:00, Christopher Lameter wrote: >> Would it not be better to use compound page allocations here? >> page_head(whatever) gets you the head page where you can store all sorts >> of information about the chunk of memory. > > Can you please point me to this function/macro? I don't seem to be able > to find it, at least not in 4.15
IIUC, he means PageHead(), which is also hard to grep for, since it is a constructed name, via Page##uname in include/linux/page-flags.h: __PAGEFLAG(Head, head, PF_ANY) CLEARPAGEFLAG(Head, head, PF_ANY) -Kees -- Kees Cook Pixel Security
