Re: [PATCH 03/12] mm, thp, tmpfs: handle huge page cases inshmem_getpage_gfp

From: Kirill A. Shutemov
Date: Wed Oct 16 2013 - 08:11:56 EST


Ning Qu wrote:
> you mean something like this? If so, then fixed.
>
> if (must_use_thp) {
> page = shmem_alloc_hugepage(gfp, info, index);
> if (page) {
> count_vm_event(THP_WRITE_ALLOC);
> } else
> count_vm_event(THP_WRITE_ALLOC_FAILED);
> } else {
> page = shmem_alloc_page(gfp, info, index);
> }
>
> if (!page) {
> error = -ENOMEM;
> goto unacct;
> }
> nr = hpagecache_nr_pages(page);

Yeah.

count_vm_event() part still looks ugly, but I have similar in my code.
I'll think more how to rework in to make it better.

--
Kirill A. Shutemov
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