Re: [RFC PATCH 1/3] mm: Drop locked from isolate_migratepages_block

Alex Shi
2020-08-13T06:56:30Z

在 2020/8/13 下午12:02, Alexander Duyck 写道:
> From: Alexander Duyck <alexander.h.duyck-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
>
> We can drop the need for the locked variable by making use of the
> lruvec_holds_page_lru_lock function. By doing this we can avoid some rcu
> locking ugliness for the case where the lruvec is still holding the LRU
> lock associated with the page. Instead we can just use the lruvec and if it
> is NULL we assume the lock was released.
>
> Signed-off-by: Alexander Duyck <alexander.h.duyck-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> ---
> mm/compaction.c | 45 ++++++++++++++++++++-------------------------
> 1 file changed, 20 insertions(+), 25 deletions(-)

Thanks a lot!
Don't know if community is ok if we keep the patch following whole patchset alone?