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SubjectRe: [PATCH v3 16/20] mm/balloon_compaction: list interfaces
Date
at 12:48 PM, Nadav Amit <namit@vmware.com> wrote:

> at 12:13 PM, Nadav Amit <namit@vmware.com> wrote:
>
>> Introduce interfaces for ballooning enqueueing and dequeueing of a list
>> of pages. These interfaces reduce the overhead of storing and restoring
>> IRQs by batching the operations. In addition they do not panic if the
>> list of pages is empty.
>>
>> Cc: "Michael S. Tsirkin" <mst@redhat.com>
>> Cc: Jason Wang <jasowang@redhat.com>
>> Cc: linux-mm@kvack.org
>> Cc: virtualization@lists.linux-foundation.org
>> Reviewed-by: Xavier Deguillard <xdeguillard@vmware.com>
>> Signed-off-by: Nadav Amit <namit@vmware.com>
>> ---
>> include/linux/balloon_compaction.h | 4 +
>> mm/balloon_compaction.c | 139 +++++++++++++++++++++--------
>> 2 files changed, 105 insertions(+), 38 deletions(-)
>>
>> diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
>> index 53051f3d8f25..2c5a8e09e413 100644
>> --- a/include/linux/balloon_compaction.h
>> +++ b/include/linux/balloon_compaction.h
>> @@ -72,6 +72,10 @@ extern struct page *balloon_page_alloc(void);
>> extern void balloon_page_enqueue(struct balloon_dev_info *b_dev_info,
>> struct page *page);
>> extern struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info);
>> +extern void balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info,
>> + struct list_head *pages);
>> +extern int balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info,
>> + struct list_head *pages, int n_req_pages);
>
> <snip>
>
> Michael, can we get you ack for this patch (as well as 15/20)?

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