Re: [LKP] [lkp] [xfs] 68a9f5e700: aim7.jobs-per-min -13.6% regression

[Linus Torvalds]

On Thu, Aug 11, 2016 at 3:16 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> Huh?  The very first thing it does is
>         char *kaddr = kmap_atomic(page), *p = kaddr + offset;
>
> If _that_ does not disable pagefaults, we are very deep in shit.

Right you are - it does, even with highmem disabled. Never mind, those
pagefault_disabled/enabled() calls are clearly bogus.

         Linus