On Thu, Feb 1, 2018 at 11:42 PM, Igor Stoppa [off-list ref] wrote:
On 01/02/18 02:00, Christopher Lameter wrote:
quoted
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
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