On Fri, Dec 10, 2021 at 2:46 PM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> -#define MLOCK_LIMIT ((PAGE_SIZE > 64*1024) ? PAGE_SIZE : 64*1024)
> +#define MLOCK_LIMIT ((PAGE_SIZE > 8*1024*1024) ? PAGE_SIZE : 8*1024*1024)
I think I'll just make this
#define MLOCK_LIMIT (8*1024*1024)
because at the point where it's that big, there's no point in
comparing it against PAGE_SIZE any more.
If some config has that big of a page size, all the rest of the kernel
infrastructure would basically be screwed. We do a lot of core kernel
allocations in one-page chunks..
Linus
