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SubjectRe: [PATCH] mm/madvise: fix WILLNEED on SHM/ANON to actually do something
From
Hi

On Fri, May 23, 2014 at 10:55 PM, David Rientjes <rientjes@google.com> wrote:
> On Fri, 23 May 2014, David Herrmann wrote:
>
>> diff --git a/mm/madvise.c b/mm/madvise.c
>> index 539eeb9..a402f8f 100644
>> --- a/mm/madvise.c
>> +++ b/mm/madvise.c
>> @@ -195,7 +195,7 @@ static void force_shm_swapin_readahead(struct vm_area_struct *vma,
>> for (; start < end; start += PAGE_SIZE) {
>> index = ((start - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
>>
>> - page = find_get_page(mapping, index);
>> + page = find_get_entry(mapping, index);
>> if (!radix_tree_exceptional_entry(page)) {
>> if (page)
>> page_cache_release(page);
>
> This is already in -mm from Johannes, see
> http://marc.info/?l=linux-kernel&m=139998616712729. Check out
> http://www.ozlabs.org/~akpm/mmotm/ for this kernel.

Didn't check -mm, sorry. Thanks for the links!
David


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